Filter device for synthetic hydraulic oil pipeline of press
By designing a filter device in the hydraulic oil system of the press, using the cylindrical filter element to filter the debris and simplifying the disassembly of the filter element, the damage problem of the debris flow to the control valve and pipeline is solved, and the effect of reducing the hydraulic oil replacement cycle and production cost is achieved.
Patent Information
- Application Number
- CN202422476788.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In synthetic hydraulic oil systems under high temperature and high pressure conditions, the frictional impact of the flow of debris can easily damage the control valves and pipelines, resulting in frequent shutdowns and replacement of hydraulic oil, increasing production costs.
A press synthetic hydraulic oil pipeline filter device is designed to enter the annular cavity through the oil inlet pipe, and filter the debris with a cylindrical filter element. The debris is collected in the annular cavity, reducing the frictional impact of the debris flow on the pipeline, and simplifying the disassembly process of the filter element through the disassembly filter element.
It effectively avoids damage to the control valve and pipeline by the flow of debris, extends the replacement cycle of hydraulic oil, reduces production costs, and improves the maintenance efficiency of the filter element.
Smart Images
Figure CN223233408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of diamond presses, in particular to a press synthetic hydraulic oil pipeline filtering device. Background Art
[0002] Artificial diamond synthesis is achieved by simulating the natural diamond formation process. This typically involves a hexagonal press with six working cylinders. The first stage can achieve a pressure of 6-8 GPa. A second stage booster is placed within the hexagonal chamber, creating an octahedral chamber. This pressure can reach a maximum pressure of 25 GPa and a maximum temperature of 2500°C. Under these high temperatures and pressures, graphite is transformed into diamond. The hexagonal press requires a synthetic hydraulic oil system to power the press. This system consumes large quantities of hydraulic oil. The reciprocating flow of hydraulic oil can corrode the hydraulic system components and the press itself, generating debris that travels with the oil. The frictional impact of this debris can easily damage control valves and piping. This necessitates regular downtime for hydraulic oil replacement, a cumbersome process that hinders cost control and warrants improvement. Utility Model Content
[0003] In order to solve the above problems, the utility model proposes a filter device for a synthetic hydraulic oil pipeline of a press.
[0004] The technical solution of the utility model is: a synthetic hydraulic oil pipeline filtering device for a press, comprising a base, a supporting sleeve and a cylindrical filter element, a sleeve ring is provided on the base, the lower end of the supporting sleeve is sleeved with the base, and a circular sealing cover is installed on the upper end. The sealing cover is cylindrical, and one end is sealed by a cover plate. The cylindrical filter element is coaxially sleeved in the supporting sleeve, and an annular cavity is formed between the outer side surface of the cylindrical filter element and the supporting sleeve, and hydraulic oil can enter the annular cavity. An oil inlet pipe is provided on one side of the base, and an L-shaped oil outlet pipe is provided on the other side. The oil inlet pipe and the L-shaped oil outlet pipe are arranged corresponding to each other, and the inner end of the L-shaped oil outlet pipe is coaxially arranged with the supporting sleeve and penetrates into the supporting sleeve to a certain depth, the lower end of the cylindrical filter element is docked with the inner end of the L-shaped oil outlet pipe, and the inner end of the oil inlet pipe is provided with an oil inlet connected to the annular cavity; a disassembler is provided on the sealing cover.
[0005] Preferably, the disassembler includes a disassembly ring that matches the size of the sealing cover. The disassembly ring can be inserted into the sealing cover. There are several threaded holes on the circumferential surface of the disassembly ring. Set screws are installed in the threaded holes. The length of the set screws is greater than the depth of the threaded holes.
[0006] Preferably, a cylindrical handle is provided on the outer side surface of the disassembly ring in the radial direction, and a rubber anti-slip sleeve is mounted on the cylindrical handle.
[0007] Preferably, a hexagonal prism head is provided at the center of the upper surface of the sealing cover, and a reinforcement step is provided between the hexagonal prism head and the sealing cover.
[0008] Preferably, the upper end of the cylindrical filter element is provided with an annular folding edge, which is vertically connected to the cylindrical filter element and fits with the bottom surface of the cover plate of the sealing cover.
[0009] Preferably, an annular plate is provided at the inner end of the L-shaped oil outlet pipe, the annular plate is vertically connected to the inner end of the L-shaped oil outlet pipe, and the bottom surface of the cylindrical filter element is coaxially pressed on the edge of the annular plate.
[0010] Preferably, a pair of circular bypass holes are provided on the side plate of the tube body between the oil inlet pipe and the L-shaped oil outlet pipe, and an automatic control valve is provided at the bypass hole.
[0011] Preferably, the automatic control valve includes a plunger, a spring and a coil, a guide column is provided at the center of the inner end surface of the plunger, the guide column is slidably connected to the support plate provided in the oil inlet pipe, the spring is sleeved on the middle of the guide column, and a coil is provided on the outside of the guide column.
[0012] The beneficial technical effects of the utility model are:
[0013] (1) The filtering device introduces the hydraulic oil upward into the annular cavity through the oil inlet pipe, and then discharges it downward from the L-shaped oil outlet pipe after being filtered by the cylindrical filter element. The debris flowing with the hydraulic oil in the oil circuit is filtered into the annular cavity and can be cleaned regularly, effectively avoiding the damage to the control valve and pipeline caused by the friction impact of the debris flow, reducing the replacement cycle of the hydraulic oil, and saving production costs.
[0014] (2) The disassembly ring of the filter device is locked on the outer side of the sealing cover by evenly distributed set screws. The sealing cover can be easily removed by holding the cylindrical handle and rotating the disassembly ring, which solves the problem that the cylindrical filter element and the base are tightly combined and difficult to separate under high pressure, and is conducive to improving the disassembly and maintenance efficiency of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 1 is a schematic diagram of the three-dimensional structure of the filtering device;
[0016] Figure 2 yes Figure 1 AA-direction cross-sectional structural diagram;
[0017] Figure 3 yes Figure 2 BB-direction cross-sectional structural diagram;
[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the dismantling tool installed on the sealing cover;
[0019] Figure 5It is a schematic diagram of the three-dimensional structure of the disassembler;
[0020] Figure 6 Schematic diagram of the structure after the bypass hole is set in the filter device (the coil is not shown in the figure to clearly show the structure);
[0021] In the figure, 1. base, 11. oil inlet pipe, 12. L-shaped oil outlet pipe, 13. oil inlet, 14. annular plate, 15. bypass hole, 2. support sleeve, 3. cylindrical filter element, 4. sealing cover, 41. hexagonal prism head, 5. annular cavity, 61. disassembly ring, 62. set screw, 63. cylindrical handle, 71. plunger, 72. spring, 73. support plate, 74. guide column. DETAILED DESCRIPTION
[0022] Example 1, see attached Figure 1-3 A synthetic hydraulic oil pipeline filtering device for a press includes a base 1, a supporting sleeve 2 and a cylindrical filter element 3. The lower end of the supporting sleeve is sleeved with the base, and a circular sealing cover 4 is installed on the upper end. The cylindrical filter element 3 is coaxially sleeved in the supporting sleeve 2, and the cylindrical filter element 3 is pressed and fixed in the supporting sleeve 2 by the sealing cover 4. An annular cavity 5 is formed between the outer side surface of the cylindrical filter element 3 and the supporting sleeve 2. An oil inlet pipe 11 is provided on one side of the base 1, and an L-shaped oil outlet pipe 12 is provided on the other side. The inner end of the L-shaped oil outlet pipe is coaxially arranged with the supporting sleeve 2, and the lower end of the cylindrical filter element 3 is connected to the inner end of the L-shaped oil outlet pipe 12. The inner end of the oil inlet pipe 11 is provided with an oil inlet port 13 connected with the annular cavity 5, and the hydraulic oil enters the annular cavity 5 from the oil inlet port.
[0023] A hexagonal prism head 41 is provided at the center of the upper surface of the sealing cover 4. The sealing cover can be removed by twisting the hexagonal prism head with a wrench. However, the cylindrical filter element 3 and the base 1 are tightly combined under high pressure and are not easy to separate. Disassembly through the hexagonal prism head 41 will cause difficulties.
[0024] The upper end of the cylindrical filter element 3 is provided with an annular folding edge, which is in contact with the bottom surface of the cover plate of the sealing cover 4. The annular folding edge plays a centering role, which is conducive to the coaxial sleeve of the cylindrical filter element 3 in the supporting sleeve 2, thereby improving the accuracy of its assembly. The inner end of the L-shaped oil outlet pipe 12 is provided with an annular plate 14, and the bottom surface of the cylindrical filter element 3 is coaxially pressed on the edge of the annular plate 14. The lower end of the cylindrical filter element 3 is sealed and connected to the inner end of the L-shaped oil outlet pipe 12 through the annular plate 14, and the hydraulic oil can enter the L-shaped oil outlet pipe 12 after filtration.
[0025] When the filtering device is in use, the hydraulic oil flows upward from the oil inlet 13 at the inner end of the oil inlet pipe 11 into the annular cavity 5, and then flows downward into the L-shaped oil outlet pipe 12 after being filtered by the cylindrical filter element 3. During this process, debris flowing with the hydraulic oil in the oil circuit is filtered into the annular cavity 5, preventing the debris from continuing to flow with the hydraulic oil in the pipeline system. The friction impact of the debris flow will no longer cause damage to the control valve and the pipeline, thereby reducing the replacement of parts and the replacement cycle of the hydraulic oil.
[0026] Example 2, see attached Figure 4-5 In this embodiment, based on the first embodiment, a dismantling tool is provided on the sealing cover 4. The dismantling tool includes a dismantling ring 61 that matches the size of the sealing cover 4. The dismantling ring is designed to have sufficient self-strength. There are several threaded holes on the circumferential surface of the dismantling ring 61. The threaded holes are arranged radially along the dismantling ring. Set screws 62 are installed in the threaded holes. A cylindrical handle 63 is provided radially on the outer side of the dismantling ring.
[0027] When removing the sealing cover 4 by using the remover, the disassembly ring 61 is put on the outer side of the sealing cover 4, and then the set screws 62 are tightened one by one. The disassembly ring is coaxially locked on the outer side of the sealing cover 4, and the cylindrical handles 63 on both sides are held to rotate the disassembly ring 61. The rotation of the disassembly ring 61 drives the sealing cover 4 to rotate. In this way, the sealing cover 4 can be easily removed, which effectively solves the problem that the cylindrical filter element 3 and the base 1 are tightly combined and difficult to separate under high pressure.
[0028] Example 3, see attached Figure 6 This embodiment is based on the first embodiment, and a bypass hole 15 is provided on the side plate of the tube body between the oil inlet pipe 11 and the L-shaped oil outlet pipe 12. The bypass hole 15 connects the oil inlet pipe 11 and the L-shaped oil outlet pipe 12. An automatic control valve is provided at the bypass hole 15. The automatic control valve includes a plunger 71, a spring 72 and a coil. A guide column 74 is provided at the center of the inner end surface of the plunger. The guide column is slidably connected to a support plate 73 provided in the oil inlet pipe 11. The spring 72 is sleeved on the middle of the guide column 74, and a coil is provided on the outside of the guide column 74.
[0029] The purpose of providing the bypass hole 15 in this embodiment is that when the filter device fails or the filter element is removed for maintenance, the plunger 71 is driven to open by the automatic control valve, and the hydraulic oil directly enters the L-shaped oil outlet pipe 12 from the bypass hole 15, and the hydraulic oil is temporarily not filtered, so that the pipeline is kept in an unobstructed state, without affecting the normal operation of the press, and ensuring that it is in a continuous production state.
Claims
1. A filter device for synthetic hydraulic oil pipeline of a press, characterized by: It includes a base, a supporting sleeve and a cylindrical filter element. The lower end of the supporting sleeve is sleeved with the base, and a circular sealing cover is installed on the upper end. The cylindrical filter element is coaxially sleeved in the supporting sleeve. An annular cavity is formed between the outer side surface of the cylindrical filter element and the supporting sleeve. An oil inlet pipe is provided on one side of the base, and an L-shaped oil outlet pipe is provided on the other side. The inner end of the L-shaped oil outlet pipe is coaxially arranged with the supporting sleeve. The lower end of the cylindrical filter element is connected to the inner end of the L-shaped oil outlet pipe. The inner end of the oil inlet pipe is provided with an oil inlet connected to the annular cavity; a disassembler is provided on the sealing cover.
2. The filter device for a press synthetic hydraulic oil pipeline according to claim 1, characterized in that: The dismantling device comprises a dismantling ring whose size matches that of the sealing cover. A plurality of threaded holes are arranged on a part of the circumferential surface of the dismantling ring, and set screws are installed in the threaded holes.
3. The filter device for a press synthetic hydraulic oil pipeline according to claim 2, characterized in that: A cylindrical handle is radially provided on the outer side of the disassembly ring.
4. The filter device for a press synthetic hydraulic oil pipeline according to claim 3, characterized in that: A hexagonal column head is provided at the center of the upper surface of the sealing cover.
5. The filter device for a press synthetic hydraulic oil pipeline according to claim 1, characterized in that: The upper end of the cylindrical filter element is provided with an annular folding edge, and the annular folding edge is in contact with the bottom surface of the cover plate of the sealing cover.
6. The filter device for a press synthetic hydraulic oil pipeline according to claim 1, characterized in that: An annular plate is provided at the inner end of the L-shaped oil outlet pipe, and the bottom surface of the cylindrical filter element is coaxially pressed on the edge of the annular plate.
7. The filter device for a press synthetic hydraulic oil pipeline according to claim 1, characterized in that: A bypass hole is provided on a side plate of the pipe body between the oil inlet pipe and the L-shaped oil outlet pipe, and an automatic control valve is provided at the bypass hole.
8. The filter device for a press synthetic hydraulic oil pipeline according to claim 7, characterized in that: The automatic control valve includes a plunger, a spring and a coil. A guide column is provided at the center of the inner end surface of the plunger. The guide column is slidably connected to a support plate provided in the oil inlet pipe. The spring is sleeved on the middle of the guide column, and a coil is provided on the outside of the guide column.