A combined hydraulic station test platform

Abstract

The present invention relates to the technical field of hydraulic testing equipment, and in particular to a combined hydraulic station test platform. The test platform includes a group of main test modules and several component test modules, and the main test module includes a hydraulic station box, a power assembly, a first combination valve block, an oil circuit divider, a first cooling assembly and a first combination mechanism; a test platform body is installed on the top of the hydraulic station box; the power assembly is installed on the test platform body; a hydraulic oil tank is fixedly installed in the inner cavity of the hydraulic station box, and the hydraulic oil tank is connected to the input end of the power assembly; the input end of the oil circuit divider is connected to the output end of the hydraulic oil pump; the input end of the first combination valve block is connected to the output end of the oil circuit divider. The present invention can improve the cooling effect of the hydraulic oil, improve the efficiency of the slag discharge work, and also improve the compatibility of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic testing equipment, and in particular relates to a combined hydraulic station testing platform. Background Art

[0002] The hydraulic station plays a big role in the hydraulic transmission system. The heat generated by the components of the hydraulic station during operation, and the heat generated by the friction between the hydraulic oil and the components of the hydraulic system of the test equipment after the hydraulic oil enters the test equipment, will cause the temperature of the hydraulic oil to rise. Therefore, when the hydraulic oil returns to the oil circuit of the hydraulic station through the input end of the combination valve block, its oil temperature must be higher than the oil temperature of the hydraulic oil in the hydraulic oil tank. In order to extend the mission of the hydraulic oil and reduce the damage to the various structures of the hydraulic station caused by high temperature, it is necessary to cool the hydraulic oil when it returns.

[0003] Nowadays, most hydraulic oil cooling methods use a condenser and a fan to produce cold air, and use the cold air to cool the oil pipeline. However, due to the fast flow rate of the oil circuit, the contact time between the cold air and the hydraulic oil is too short, resulting in poor cooling effect. Summary of the invention

[0004] In view of the above problems, the present invention provides a combined hydraulic station test platform, the test platform includes a group of main test modules and several component test modules, the main test module includes a hydraulic station box, a power assembly, a first combination valve block, an oil circuit divider, a first cooling assembly and a first combination mechanism; a test platform body is installed on the top of the hydraulic station box; the power assembly is installed on the test platform body; a hydraulic oil tank is fixedly installed in the inner cavity of the hydraulic station box, the hydraulic oil tank is connected to the input end of the power assembly; the input end of the oil circuit divider is connected to the output end of the hydraulic oil pump; the input end of the first combination valve block is connected to the output end of the oil circuit divider;

[0005] The first cooling assembly includes a first shell, a fluid pipe and a cooling pipe; the first shell is fixedly mounted on the test platform body, the fluid pipe is mounted in the first shell, and the inlet end is connected to the oil circuit divider; the cooling pipe is a spiral structure sleeved on the fluid pipe; the first shell is provided with a water inlet and a water outlet, and the two ends of the cooling pipe are respectively connected to the inner sides of the water inlet and the water outlet;

[0006] The connecting mechanism of the sub-test module can be movably engaged with the first combination mechanism, the input end of the sub-test module is connected to the oil circuit divider, and the output end is connected to the filter assembly.

[0007] Furthermore, the power assembly includes a power motor and a hydraulic oil pump, the power motor is fixedly mounted on the test platform body, the input end of the hydraulic oil pump is transmission-connected to the output end of the power motor via a coupling; the hydraulic oil pump is connected to a group of oil pipelines, and the other end of the oil pipelines is connected to the hydraulic oil tank.

[0008] Furthermore, the first combined valve block includes a valve block body, a relief valve, a reversing valve and a pressure gauge;

[0009] The valve block body is fixedly mounted on the test platform body, the input end of the valve block body is connected to the oil circuit divider through a group of oil pipes, and the output end of the valve block body is connected to the inlet end of the liquid flow pipe through a group of oil pipes; the overflow valve, the reversing valve and the pressure gauge are all connected to the valve block body; the valve block body is provided with an oil outlet interface and an oil inlet interface respectively; the first housing is provided with a first liquid inlet and a first liquid outlet at both ends; the first liquid inlet is connected to the output end of the valve block body through a group of oil pipes, and the first liquid outlet is connected to the input end of the filter assembly through a group of oil pipes; the two ends of the liquid flow pipe are connected to the first liquid inlet and the first liquid outlet respectively;

[0010] The condenser is installed on the side wall of the hydraulic station box.

[0011] Furthermore, a first opening is provided on one side wall of the hydraulic station box, the first opening is connected to a first built-in box, and the first combination mechanism is fixedly installed in the first built-in box; the output end of the first combination mechanism can pass through the first opening to the outside of the hydraulic station box; and a first box door is provided on the first opening.

[0012] Furthermore, the hydraulic station also includes a filter assembly, and the filter assembly includes a second shell, an electrode rod and a slag discharge pipe;

[0013] The second shell is installed in the hydraulic station box, and a second liquid inlet is opened on the top of the second shell, and the second liquid inlet is connected to the first liquid outlet through a group of oil pipes; the electrode rod is installed in the second shell in a vertical direction, and a plurality of groups of empty grooves are opened in a circular array on the surface of the electrode rod, and the upper and lower ends of the empty grooves are open structures; the bottom of one side wall of the second shell is set as an inclined surface, and a filter screen is set on the inner side of the inclined surface, and a second liquid outlet is opened on the outer side of the inclined surface, and the second liquid outlet is connected to the hydraulic oil tank through a group of oil pipes; a slag discharge pipe is connected to the bottom of the second shell, and an electromagnetic valve is set at the junction of the slag discharge pipe and the second shell.

[0014] Furthermore, a pull-out plate is provided on one side wall of the hydraulic station box, and a slag collecting box is provided on the bottom inner wall of one side of the hydraulic station box close to the pull-out plate, the slag collecting box is located directly below the second shell body and is connected to the slag discharge pipe; a slag collecting box sealing door is provided on one side wall of the slag collecting box close to the pull-out plate; and a vacuum pump is provided on the slag collecting box;

[0015] A relay is installed in the hydraulic station box, and the relay is electrically connected to the electrode rod through an electric wire.

[0016] Further, the first combined mechanism includes a first connecting rod, a threaded rod and a second connecting rod;

[0017] One end of the first connecting rod is hinged on a side wall of the first built-in box away from the first box door, and the threaded rod is rotatably connected to the other end of the first connecting rod. The second connecting rod is provided with a threaded opening at the one end, and an inner cavity is connected to the threaded opening, and the diameter of the inner cavity is larger than the threaded opening; the threaded rod is threadedly connected in the threaded opening, and the end of the threaded rod away from the first connecting rod can movably penetrate into the inner cavity, and a limiting plate is fixedly installed on the end of the threaded rod away from the first connecting rod.

[0018] Furthermore, the first combination mechanism also includes a sleeve block, a fixing rod and a threaded seat; the connecting rod of the sleeve block is hinged on the end of the second connecting rod away from the threaded opening; the fixing rod is installed at the bottom of the sleeve block, and an external threaded head is provided at the bottom of the fixing rod, and the threaded seat is threadedly connected to the external threaded head; an anti-slip plate is installed at the bottom of the threaded seat; and a sleeve block fixing rod is installed at the top of the sleeve block.

[0019] Furthermore, a sleeve block limiting ring is installed on a side wall of the first built-in box away from the first box door, and the sleeve block fixing rod can be movably clamped on the sleeve block limiting ring; a fixing ring is arranged on one side of the first connecting rod.

[0020] Further, the sub-test module includes a base, a second combination valve block, a second cooling assembly, a second combination mechanism, a second built-in box and a second box door; the structures of the second combination valve block, the second cooling assembly, the second combination mechanism, the second built-in box and the second box door are respectively the same as the structures of the first combination valve block, the first cooling assembly, the first combination mechanism, the first built-in box and the first box door; the input end of the second combination valve block is connected to the oil circuit divider;

[0021] The output end of the second cooling component is in communication with the second liquid inlet, and the second cooling component is in communication with the condenser through a water pipe;

[0022] The second built-in box, the second box door and the second combination mechanism are all arranged on a side wall of the base close to the hydraulic station box body; and the second combination mechanism can be movably connected with the first combination mechanism.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention cools water into low-temperature cooling water through condenser refrigeration and injects it into the cooling pipe. When the hydraulic oil flows through the liquid flow pipe, the heat energy in the hydraulic oil will be absorbed by the cooling water to achieve the cooling purpose. At the same time, since the cooling pipe is wound around the liquid flow pipe in a spiral structure, the contact area between the cooling pipe and the liquid flow pipe is increased, and the indirect contact time between the hydraulic oil and the cooling water in the cooling pipe is also extended, so that the cooling time of the hydraulic oil is increased, and the cooling effect is improved.

[0025] 2. The present invention generates high-voltage static electricity by supplying power to the electrode rod, and uses the principle of electrostatic dust removal to simultaneously adsorb metal oxides and non-metallic carbide particles in the hydraulic oil flowing through the second shell. In addition, since a plurality of groups of empty grooves are provided on the surface of the electrode rod, the contact area between the electrode rod and the hydraulic oil is increased, thereby improving the cleaning effect. When impurities need to be cleaned, it is only necessary to stop supplying power to the electrode rod to make it lose its electrostatic adsorption force, and then the impurities on the surface of the electrode rod will fall into the slag collection box below, and then the pull-out plate can be pulled out. The process is simple and fast, and work efficiency is improved.

[0026] 3. When the main test module in the present invention is used alone, the first assembly mechanism is built into the first built-in box, which saves space and reduces the overall volume of the test platform; when the main test module and the sub-test module need to be used in combination, each set of fixing rings in the first assembly mechanism and the second assembly mechanism are connected to each other and fixed with two sets of threaded seats, which is simple and quick to operate. The distance from the second fixing rod to the first fixing rod can be extended by rotating the threaded rod, which improves its compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a test platform according to an embodiment of the present invention is shown;

[0029] Figure 2 A cross-sectional schematic diagram of a test platform according to an embodiment of the present invention is shown;

[0030] Figure 3It shows a schematic structural diagram of a first combined valve block according to an embodiment of the present invention;

[0031] Figure 4 A schematic structural diagram of a first cooling assembly according to an embodiment of the present invention is shown;

[0032] Figure 5 A cross-sectional schematic diagram of a first cooling assembly according to an embodiment of the present invention is shown;

[0033] Figure 6 A cross-sectional schematic diagram of a filter assembly according to an embodiment of the present invention is shown;

[0034] Figure 7 A schematic structural diagram of an electrode rod according to an embodiment of the present invention is shown;

[0035] Figure 8 A cross-sectional schematic diagram of a first built-in box according to an embodiment of the present invention is shown;

[0036] Fig. 9 It shows a schematic structural diagram of a first combination mechanism according to an embodiment of the present invention;

[0037] Fig.10 A cross-sectional schematic diagram of a first combination mechanism according to an embodiment of the present invention is shown.

[0038] In the figure: 1, hydraulic station box; 2, test platform body; 3, hydraulic oil tank; 4, power motor; 5, hydraulic oil pump; 6, first combined valve block; 601, valve block body; 602, overflow valve; 603, reversing valve; 604, pressure gauge; 605, oil outlet interface; 606, oil inlet interface; 7, first cooling assembly; 701, first shell; 702, liquid flow pipe; 703, first liquid inlet; 704, first liquid outlet; 705, cooling pipe; 706, water inlet; 707, water outlet; 8, filter assembly; 801, second shell; 802, second liquid inlet; 803, electrode rod; 804, inclined plane; 805, second liquid outlet; 806, filter screen; 807, slag discharge pipe; 808, solenoid valve; 809, empty slot; 9, first group Combination mechanism; 901, first connecting rod; 902, threaded rod; 903, second connecting rod; 904, threaded port; 905, inner cavity; 906, limit plate; 907, sleeve block; 908, fixed rod; 909, external thread head; 910, threaded seat; 911, anti-drop plate; 912, sleeve block fixed rod; 10, first built-in box; 11, first box door; 12, oil extraction pipe; 13, oil return pipe; 14, condenser; 15, relay; 16, slag collection box; 17, pull-out plate; 18, sleeve block limit ring; 19, fixed ring; 20, oil circuit divider; 21, base; 22, second combination valve block; 23, second cooling assembly; 24, second combination mechanism; 25, second built-in box; 26, second box door; 27, vacuum pump; 28, slag collection box sealing door. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The embodiment of the present invention provides a combined hydraulic station test platform, the test platform includes a set of main test modules and a plurality of component test modules, the main test module includes a hydraulic station box 1, a test platform body 2, a hydraulic oil tank 3, a power motor 4, a hydraulic oil pump 5, a first combined valve block 6 and an oil circuit divider 20. For example, Figure 1 and Figure 2 As shown, the test platform body 2 is installed on the top of the hydraulic station box 1. The test platform body 2 is used to install the equipment required for the test.

[0041] The hydraulic oil pump 5 is fixedly mounted on the test platform body 2, and an oil extraction pipe 12 is connected to the hydraulic oil pump 5. The hydraulic oil pump 5 is used to apply pressure to the oil circuit to pump oil.

[0042] The hydraulic oil tank 3 is fixedly installed in the inner cavity of the hydraulic station housing 1, and the other end of the oil extraction pipe 12 is connected to the hydraulic oil tank 3. The hydraulic oil tank 3 is used to store the hydraulic oil required for the test.

[0043] The power motor 4 is fixedly mounted on the test platform body 2, and the input end of the hydraulic oil pump 5 is transmission-connected to the output end of the power motor 4 through a coupling. The power motor 4 provides power for oil supply.

[0044] The oil circuit divider 20 is fixedly mounted on the test platform body 2, and the input end of the oil circuit divider 20 is connected to the output end of the hydraulic oil pump 5 through a set of oil pipes. The oil circuit divider 20 can supply oil to the main test module and multiple sub-test modules at the same time.

[0045] The first combination valve block 6 is fixedly mounted on the test platform body 2, and the input end of the first combination valve block 6 is connected to the output end of the oil circuit divider 20 through a group of oil pipes. The first combination valve block 6 is used to control the speed and direction of oil supply of each group of oil pipelines.

[0046] The main test module also includes a condenser 14, a first cooling assembly 7, a filter assembly 8 and a first combination mechanism 9. The condenser 14 is fixedly mounted on the outer wall of the hydraulic station box 1, the first cooling assembly 7 is fixedly mounted on the test platform body 2, and the input end of the first cooling assembly 7 is connected to the output end of the first combination valve block 6 through a group of oil pipes. The condenser 14 is respectively connected to the inlet and outlet of the first cooling assembly 7 through two groups of water pipes.

[0047] After the hydraulic oil flows from the output end of the first combination valve block 6 into the test equipment for hydraulic testing, it will flow back to the cavity of the first combination valve block 6 through the input end of the first combination valve block 6, and enter the first cooling component 7 through a group of oil pipes, so that the entire oil circuit is in a circulating state. In addition, due to the heat generated by the components of the hydraulic station during operation, and the heat generated by the frictional contact between the hydraulic oil and the components of the hydraulic system of the test equipment after the hydraulic oil enters the interior of the test equipment, the temperature of the hydraulic oil itself will also rise. Therefore, when the hydraulic oil returns to the cavity of the first combination valve block 6 through the input end of the first combination valve block 6, its oil temperature must be higher than the oil temperature of the hydraulic oil in the hydraulic oil tank 3. In order to extend the life of the hydraulic oil and reduce the damage of high temperature to the various structures of the hydraulic station, it is necessary to cool the hydraulic oil after it flows out of the first combination valve block 6.

[0048] The filter assembly 8 is installed in the hydraulic station housing 1, and the input end of the filter assembly 8 is connected to the output end of the first cooling assembly 7 through a group of oil pipes. The output end of the first filter assembly 8 is connected to the hydraulic oil tank 3 through a group of oil pipes. The filter assembly 8 is used to filter the oxides in the hydraulic oil.

[0049] A pull-out plate 17 is provided on one side wall of the hydraulic station housing 1, and a slag collecting box 16 is provided on the bottom inner wall of the hydraulic station housing 1 near the pull-out plate 17. The slag collecting box 16 is located directly below the housing of the filter assembly 8 and is connected to the slag discharge mechanism of the filter assembly 8. A slag collecting box sealing door 28 is provided on one side wall of the slag collecting box 16 near the pull-out plate 17. A vacuum pump 27 is provided on the slag collecting box 16.

[0050] A first opening is provided on one side wall of the hydraulic station box 1, and the first opening is connected to a first built-in box 10, and the first combination mechanism 9 is fixedly installed in the first built-in box 10; the output end of the first combination mechanism 9 can pass through the first opening to the outside of the hydraulic station box 1. A first box door 11 is provided on the first opening. The first combination mechanism 9 is a built-in structure, and the first combination mechanism 9 can be used to fix the main test module and the sub-test module.

[0051] A relay 15 is installed in the hydraulic station box 1, and the relay 15 is electrically connected to the filter assembly 8 through an electric wire.

[0052] The sub-test module includes a base 21, a second combination valve block 22, a second cooling assembly 23, a second combination mechanism 24, a second built-in box 25 and a second box door 26. The structures of the second combination valve block 22, the second cooling assembly 23, the second combination mechanism 24, the second built-in box 25 and the second box door 26 are respectively the same as the structures of the first combination valve block 6, the first cooling assembly 7, the first combination mechanism 9, the first built-in box 10 and the first box door 11. The input end of the second combination valve block 22 is connected to the oil circuit divider 20.

[0053] The output end of the second cooling component 23 is communicated with the input end of the filtering component 8 .

[0054] The second cooling assembly 23 is in communication with the condenser 14 via a water pipe.

[0055] The second built-in box 25, the second box door 26 and the second combination mechanism 24 are all arranged on a side wall of the base 21 close to the hydraulic station box 1. The second combination mechanism 24 can be movably connected with the first combination mechanism 9.

[0056] The input end of the second combination valve block 22 is connected to one of the output ends of the oil circuit divider 20. When working, the oil circuit divider 20 can supply oil to the first combination valve block 6 and the second combination valve block 22 at the same time, and the first combination valve block 6 and the second combination valve block 22 cooperate to test multiple groups of products to be tested at the same time, thereby achieving the purpose of combination.

[0057] The first combined valve block 6 includes a valve block body 601, a relief valve 602, a reversing valve 603 and a pressure gauge 604. Figure 3 As shown, the valve block body 601 is fixedly mounted on the test platform body 2, the input end of the valve block body 601 is connected to the oil circuit divider 20 through a group of oil pipes, and the output end of the valve block body 601 is connected to the input end of the first cooling assembly 7 through a group of oil pipes. The overflow valve 602, the reversing valve 603 and the pressure gauge 604 are all connected to the valve block body 601. The valve block body 601 is respectively provided with an oil outlet interface 605 and an oil inlet interface 606. The valve block body 601 is connected to the oil return pipe 13, and the other end of the oil return pipe 13 is connected to the hydraulic oil tank 3.

[0058] After the hydraulic oil enters the valve block body 601, the flow rate of the hydraulic oil can be adjusted through the overflow valve 602, and the test strength of the product to be tested is measured by the first combined valve block 6. The reversing valve 603 is used to open, close or change the direction of the oil flow. The pressure gauge is used to detect the pressure value of the oil circuit.

[0059] During the test, the two groups of oil pipes are connected to the oil outlet interface 605 and the oil inlet interface 606 respectively, and then the other ends of the two groups of oil pipes are connected to the product to be tested. Then the power motor 4 is started, the hydraulic oil pump 5 is controlled by the power motor 4 to work, and the hydraulic oil in the hydraulic oil tank 3 is extracted through the oil extraction pipe 12 and transported to the oil circuit divider 20. The hydraulic oil is then transported to the first combined valve block 6 by the oil circuit divider 20. Then the hydraulic oil will enter the product to be tested through a group of oil pipes on the oil outlet interface 605 to provide power for the test of the product to be tested. Then the hydraulic oil flows back to the valve block body 601 through a group of oil pipes on the oil inlet interface 606, and finally flows into the first cooling component 7, so that the oil circuits between the components can be in a passage state.

[0060] When several component test modules are used in combination with the main test module, the input end of each group of second combination valve blocks 22 is connected to the oil circuit divider 20, and the hydraulic oil is distributed to the first combination valve block 6 and each group of second combination valve blocks 22 as required through the oil circuit divider 20, so as to carry out testing work at the same time.

[0061] The first cooling assembly 7 includes a first shell 701, a liquid flow pipe 702 and a cooling pipe 705. Figure 4 and Figure 5 As shown, the first shell 701 is fixedly mounted on the test platform body 2, and the first shell 701 has a first liquid inlet 703 and a first liquid outlet 704 at both ends. The first liquid inlet 703 is connected to the output end of the valve block body 601 through a group of oil pipes, and the first liquid outlet 704 is connected to the input end of the filter assembly 8 through a group of oil pipes. The liquid flow pipe 702 is fixedly mounted in the first shell 701, and the two ends of the liquid flow pipe 702 are connected to the first liquid inlet 703 and the first liquid outlet 704 respectively. The cooling pipe 705 is a spiral structure sleeved on the liquid flow pipe 702. The first shell 701 is provided with a water inlet 706 and a water outlet 707, and the two ends of the cooling pipe 705 are connected to the inner side of the water inlet 706 and the water outlet 707 respectively. The outer sides of the water inlet 706 and the water outlet 707 are connected to the condenser 14 through a group of water pipes.

[0062] The condenser 14 is connected to an external water source, and the condenser 14 is turned on. The condenser 14 works to produce cold air, cools the water to form cooling water, and then transports the cooling water to the cooling pipe 705 through the water inlet 706. After the high-temperature hydraulic oil in the first valve block body 601 enters the liquid flow pipe 702 through the first liquid inlet 703, its internal heat will be absorbed by the cooling pipe 705 with cooling water flowing, so as to achieve the effect of cooling and lowering the temperature. The cooling water that has absorbed the heat will return to the condenser 14 through the water outlet 707 and continue to cool, realizing the function of continuous circulation cooling. And because the cooling pipe 705 is wound around the liquid flow pipe 702 in a spiral structure, it not only increases its contact area with the liquid flow pipe 702, but also makes the contact part more symmetrical and the heat dissipation more uniform, thereby improving the cooling quality.

[0063] The filter assembly 8 includes a second housing 801, an electrode rod 803 and a slag discharge pipe 807. Figure 6 and Figure 7As shown, the second housing 801 is installed in the hydraulic station box 1, and a second liquid inlet 802 is provided on the top of the second housing 801, and the second liquid inlet 802 is connected to the first liquid outlet 704 through a group of oil pipes. The electrode rod 803 is installed in the second housing 801 in a vertical direction, and a plurality of groups of empty slots 809 are provided on the surface of the electrode rod 803 in a circular array, and both the upper and lower ends of the empty slots 809 are open structures. The electrode rod 803 is electrically connected to the relay 15 through wires. The bottom of one side wall of the second housing 801 is set as an inclined surface 804, and a filter screen 806 is provided inside the inclined surface 804, and a second liquid outlet 805 is provided outside the inclined surface 804, and the second liquid outlet 805 is connected to the hydraulic oil tank 3 through a group of oil pipes. The bevel angle of the filter screen 806 is the same as that of the inclined surface 804. A slag discharge pipe 807 is connected to the bottom of the second housing 801, and the bottom of the slag discharge pipe 807 is located directly above the slag collecting box 16. The slag discharge pipe 807 is provided with a solenoid valve 808 .

[0064] The electrode rod 803 is powered by the relay 15 to generate high-voltage static electricity. When the hydraulic oil enters the second shell 801 through the second liquid inlet 802, the static electricity can not only adsorb the metal oxides in the hydraulic oil, but also the non-metallic carbide particles. In addition, since a plurality of groups of empty grooves 809 are provided on the surface of the electrode rod 803, the contact area between the electrode rod 803 and the hydraulic oil is increased, thereby improving the cleaning effect.

[0065] When the test platform is idle, first close the overflow valve 602 so that the oil circuit is disconnected at the overflow valve 602, then open the pumping valve of the hydraulic oil tank 3, and transfer all the hydraulic oil remaining in the components and oil pipelines after the overflow valve 602 to the hydraulic oil tank 3. Then close the relay 15 to stop the power supply and make the electrode rod 803 lose the electrostatic adsorption force, then open the solenoid valve 808 so that the impurities attached to the electrode rod 803 can fall freely into the slag discharge pipe 807 and finally fall into the slag collection box 16 below. Then close the solenoid valve 808 so that the slag discharge pipe 807 is completely isolated from the inner cavity of the second shell 801, but connected to the inner cavity of the slag collection box 16.

[0066] Then start the vacuum pump 27 to adjust the air pressure in the slag collecting box 16 and the slag discharge pipe 807 to the same as the external air. Then open the pull plate 17 and the slag collecting box sealing door 28 in sequence to empty the impurities in the slag collecting box 16.

[0067] Then, the slag box sealing door 28 and the pull plate 17 are closed in sequence, and the air pressure in the slag box 16 and the slag discharge pipe 807 is adjusted to the same state as the inner cavity of the second shell 801, so that the air pressure in the entire oil circuit will not be unbalanced due to the slag removal work.

[0068] The first combination mechanism 9 includes a first connecting rod 901, a threaded rod 902 and a second connecting rod 903. Figure 8 and Fig. 9 and Fig.10 As shown, one end of the first connecting rod 901 is hinged on a side wall of the first built-in box 10 away from the first box door 11, and the threaded rod 902 is rotatably connected to the other end of the first connecting rod 901. The second connecting rod 903 is provided with a threaded opening 904 at the one end, and the threaded opening 904 is connected to an inner cavity 905, and the diameter of the inner cavity 905 is larger than the threaded opening 904. The threaded rod 902 is threadedly connected in the threaded opening 904, and the end of the threaded rod 902 away from the first connecting rod 901 can be movably penetrated into the inner cavity 905, and a limit plate 906 is fixedly installed on the end of the threaded rod 902 away from the first connecting rod 901.

[0069] The first combination mechanism 9 also includes a sleeve block 907, a fixing rod 908 and a threaded seat 910. The connecting rod of the sleeve block 907 is hinged on the end of the second connecting rod 903 away from the threaded opening 904. The fixing rod 908 is installed at the bottom of the sleeve block 907, and the bottom of the fixing rod 908 is provided with an external thread head 909, and the threaded seat 910 is threadedly connected to the external thread head 909. An anti-slip plate 911 is installed at the bottom of the threaded seat 910. A sleeve block fixing rod 912 is installed at the top of the sleeve block 907.

[0070] A sleeve block limiting ring 18 is installed on a side wall of the first built-in box 10 away from the first box door 11, and the sleeve block fixing rod 912 can be movably engaged with the sleeve block limiting ring 18. A fixing ring 19 is provided on one side of the first connecting rod 901. The fixing rod 908 and the fixing ring 19 on an adjacent set of the second combination mechanism 24 can be movably engaged with the fixing rod 908 and the fixing ring 19 on the first combination mechanism 9.

[0071] When the main test module is used alone, the set block fixing rod 912 is clamped on the set block limiting ring 18, and the first box door 11 is closed, so that the first combination mechanism 9 is completely hidden in the first built-in box 10. This "built-in" structure saves space and reduces the overall volume of the test platform.

[0072] When the sub-test module needs to be used in combination with the main test module, the second box door 26 and the first box door 11 on the sub-test module are fully opened, and then the threaded rod 902 is rotated to adjust the distance between the first connecting rod 901 and the second connecting rod 903 according to the distance between the hydraulic station box 1 and the base 21. Then a set of fixing rods 908 on the main test module are pulled out and clamped in a set of fixing rings 19 on the sub-test module. And a set of fixing rods 908 on the sub-test module are pulled out and clamped on a set of fixing rings 19 on the main test module. Then the two sets of threaded seats 910 are respectively screwed on the two sets of external threaded heads 909 to prevent the fixing rods 908 from slipping out. The operation process is simple and quick, which not only saves operation time, but also improves the fixation by using a two-way fixing method.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combined hydraulic station test platform, characterized in that: The test platform comprises a group of main test modules and a plurality of component test modules, wherein the main test module comprises a hydraulic station housing (1), a power assembly, a first combination valve block (6), an oil circuit divider (20), a first cooling assembly (7) and a first combination mechanism (9); a test platform body (2) is installed on the top of the hydraulic station housing (1); the power assembly is installed on the test platform body (2); a hydraulic oil tank (3) is fixedly installed in the inner cavity of the hydraulic station housing (1), and the hydraulic oil tank (3) is connected to the input end of the power assembly; the input end of the oil circuit divider (20) is connected to the output end of the power assembly; the input end of the first combination valve block (6) is connected to the output end of the oil circuit divider (20); The first cooling assembly (7) comprises a first shell (701), a liquid flow tube (702) and a cooling tube (705); the first shell (701) is fixedly mounted on the test platform body (2); the liquid flow tube (702) is mounted in the first shell (701), and an inlet end thereof is connected to the oil circuit divider (20); the cooling tube (705) is a spiral structure sleeved on the liquid flow tube (702); a water inlet (706) and a water outlet (707) are provided on the first shell (701), and two ends of the cooling tube (705) are respectively connected to the inner sides of the water inlet (706) and the water outlet (707); The connecting mechanism of the sub-test module can be movably connected with the first combination mechanism (9), and the input end of the sub-test module is connected with the oil circuit divider (20); The power assembly comprises a power motor (4) and a hydraulic oil pump (5); the power motor (4) is fixedly mounted on the test platform body (2); the input end of the hydraulic oil pump (5) is transmission-connected to the output end of the power motor (4) via a coupling; the hydraulic oil pump (5) is connected to a group of oil pipelines, and the other end of the oil pipelines is connected to the hydraulic oil tank (3); The first combined valve block (6) comprises a valve block body (601), a relief valve (602), a reversing valve (603) and a pressure gauge (604); The valve block body (601) is fixedly mounted on the test platform body (2); the input end of the valve block body (601) is connected to the oil circuit divider (20) through a group of oil pipes, and the output end of the valve block body (601) is connected to the inlet end of the liquid flow pipe (702) through a group of oil pipes; the overflow valve (602), the reversing valve (603) and the pressure gauge (604) are all connected to the valve block body (601); an oil outlet interface (605) and an oil inlet interface (606) are respectively provided on the valve block body (601); a first liquid inlet (703) and a first liquid outlet (704) are respectively provided at two ends of the first shell (701); the first liquid inlet (703) is connected to the output end of the valve block body (601) through a group of oil pipes, and two ends of the liquid flow pipe (702) are respectively connected to the first liquid inlet (703) and the first liquid outlet (704); A condenser (14) is installed on the side wall of the hydraulic station box (1), and the output end and the input end of the condenser (14) are respectively connected to the water inlet (706) and the water outlet (707); The hydraulic station further comprises a filter assembly (8), wherein the filter assembly (8) comprises a second shell (801), an electrode rod (803) and a slag discharge pipe (807); The second shell (801) is installed in the hydraulic station box (1), and a second liquid inlet (802) is provided on the top of the second shell (801), and the second liquid inlet (802) is connected to the first liquid outlet (704) through a group of oil pipes; the electrode rod (803) is installed in the second shell (801) in a vertical direction, and a plurality of groups of empty grooves (809) are provided in a circular array on the surface of the electrode rod (803), and the upper and lower ends of the empty grooves (809) are both open structures The bottom of one side wall of the second shell (801) is arranged as an inclined surface (804), a filter screen (806) is arranged on the inner side of the inclined surface (804), and a second liquid outlet (805) is opened on the outer side of the inclined surface (804), and the second liquid outlet (805) is connected to the hydraulic oil tank (3) through a group of oil pipes; the bottom of the second shell (801) is connected to a slag discharge pipe (807), and a solenoid valve (808) is arranged at the junction of the slag discharge pipe (807) and the second shell (801).

2. The combined hydraulic station test platform according to claim 1, characterized in that: A first opening is provided on one side wall of the hydraulic station box (1), the first opening is connected to a first built-in box (10), and the first combination mechanism (9) is fixedly installed in the first built-in box (10); the output end of the first combination mechanism (9) can pass through the first opening to the outside of the hydraulic station box (1); and a first box door (11) is provided on the first opening.

3. The combined hydraulic station test platform according to claim 1, characterized in that: A pull-out plate (17) is provided on one side wall of the hydraulic station housing (1), and a slag collecting box (16) is provided on the inner wall of the bottom of one side of the hydraulic station housing (1) close to the pull-out plate (17); the slag collecting box (16) is located directly below the second shell (801) and is connected to the slag discharge pipe (807); a slag collecting box sealing door (28) is provided on one side wall of the slag collecting box (16) close to the pull-out plate (17); and a vacuum pump (27) is provided on the slag collecting box (16); A relay (15) is installed in the hydraulic station box (1), and the relay (15) is electrically connected to the electrode rod (803) through an electric wire.

4. The combined hydraulic station test platform according to claim 2, characterized in that: The first combined mechanism (9) comprises a first connecting rod (901), a threaded rod (902) and a second connecting rod (903); One end of the first connecting rod (901) is hinged on a side wall of the first built-in box (10) away from the first box door (11), and the threaded rod (902) is rotatably connected to the other end of the first connecting rod (901). The second connecting rod (903) is located at the one end and is provided with a threaded opening (904), and the threaded opening (904) is connected to an inner cavity (905), and the diameter of the inner cavity (905) is larger than the threaded opening (904); the threaded rod (902) is threadedly connected in the threaded opening (904), and the end of the threaded rod (902) away from the first connecting rod (901) can be movably penetrated into the inner cavity (905), and a limiting plate (906) is fixedly installed on the end of the threaded rod (902) away from the first connecting rod (901).

5. The combined hydraulic station test platform according to claim 4, characterized in that: The first combined mechanism (9) further comprises a sleeve block (907), a fixing rod (908) and a threaded seat (910); the connecting rod of the sleeve block (907) is hinged on an end of the second connecting rod (903) away from the threaded opening (904); the fixing rod (908) is mounted at the bottom of the sleeve block (907), and an external threaded head (909) is provided at the bottom of the fixing rod (908), and the threaded seat (910) is threadedly connected to the external threaded head (909); an anti-slip plate (911) is installed at the bottom of the threaded seat (910); and a sleeve block fixing rod (912) is installed at the top of the sleeve block (907).

6. The combined hydraulic station test platform according to claim 5, characterized in that: A sleeve block limiting ring (18) is installed on a side wall of the first built-in box (10) away from the first box door (11), and the sleeve block fixing rod (912) can be movably clamped on the sleeve block limiting ring (18); a fixing ring (19) is arranged on one side of the first connecting rod (901).

7. The combined hydraulic station test platform according to claim 6, characterized in that: The sub-test module comprises a base (21), a second combination valve block (22), a second cooling assembly (23), a second combination mechanism (24), a second built-in box (25) and a second box door (26); the structures of the second combination valve block (22), the second combination mechanism (24), the second built-in box (25) and the second box door (26) are respectively the same as the structures of the first combination valve block (6), the first combination mechanism (9), the first built-in box (10) and the first box door (11); the input end of the second combination valve block (22) is connected to the oil circuit divider (20); The output end of the second cooling component (23) is in communication with the second liquid inlet (802), and the second cooling component (23) is in communication with the condenser (14) via a water pipe; The second built-in box (25), the second box door (26) and the second combination mechanism (24) are all arranged on a side wall of the base (21) close to the hydraulic station box (1); and the second combination mechanism (24) can be movably connected with the first combination mechanism (9).

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