Energy-saving hydraulic station

Abstract

The utility model discloses an energy-saving hydraulic station, which belongs to the technical field of hydraulic stations and comprises an oil storage structure and a hydraulic pump connected with the oil storage structure. The hydraulic pump is connected with a hydraulic energy storage device, a one-way valve is arranged between the hydraulic energy storage device and the hydraulic pump, and the hydraulic energy storage device is simultaneously communicated with the one-way valve and equipment needing hydraulic oil. By means of the mode, when the hydraulic pump stops driving, the hydraulic energy storage device transfers the stored hydraulic energy to equipment needing hydraulic pressure to provide power, the working time of the hydraulic pump is shortened, and energy conservation and consumption reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic station, specifically relates to energy -conserving hydraulic station. BACKGROUND

[0002] The hydraulic station technical field industry is broad in prospect. With the upgrading of manufacturing industry, its market demand continues to grow, and the scale is expanding. Under the trend of intelligentization and integration, remote monitoring, fault diagnosis and other functions are realized by means of sensors, controllers and the like, the automation and operation efficiency are improved, the energy saving and environmental protection requirements are promoted, the application of high -efficient energy -saving components and system optimization are promoted, the energy consumption and emission are reduced, and customized services are rising, which meet the diversified individual needs.

[0003] The hydraulic station disclosed in Chinese patent CN220435129U includes an oil tank, a driving device, a pressure regulating unit and an output module. The driving device is arranged on the cover plate of the oil tank, and the driving device includes a motor and an oil pump, which are connected through a shaft coupling. The pressure regulating unit is arranged on the cover plate of the oil tank, and the pressure regulating unit is connected with the driving device through an oil delivery pipe. The output module is connected with the pressure regulating unit through a first pipeline and a second pipeline. The pressure regulating unit is used for automatically regulating the oil pressure in the oil delivery pipe, and the output module is used for controlling the reciprocating motion of the oil cylinder. However, the hydraulic pump station still has the following problems:

[0004] When the hydraulic station supplies pressure, the motor needs to drive the oil pump for a long time without interruption, which increases the operating cost and is not conducive to energy saving and consumption reduction.

[0005] Therefore, the utility model designs the energy -conserving hydraulic station to solve the above -mentioned problems. CONTENT OF THE UTILITY MODEL

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an energy -conserving hydraulic station.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] The energy -conserving hydraulic station comprises a storage oil structure and a hydraulic pump connected with the storage oil structure.

[0009] The hydraulic pump is connected with the hydraulic energy storage device, a one-way valve is arranged between the hydraulic energy storage device and the hydraulic pump, and the hydraulic energy storage device is connected with the one-way valve and the equipment requiring hydraulic oil.

[0010] Further, the storage oil structure comprises an oil tank, a mounting bottom plate and a mounting rack, the mounting rack is connected with the mounting bottom plate, the mounting bottom plate is fixedly connected with the oil tank at the lower end, the output end of the hydraulic pump is fixedly connected with the oil tank, a filtering mechanism is connected with the oil tank on the lower side of the mounting bottom plate, and the mounting bottom plate is connected with the hydraulic energy storage device, the one-way valve and the hydraulic pump.

[0011] Further, the oil tank outlet is fixedly connected with an oil delivery pipeline I; the end of the oil delivery pipeline I away from the oil tank is fixedly connected with an input end of a one-way valve; the one-way valve is provided with two output ends, one output end of the one-way valve is connected with a hydraulic energy storage device; the other output end of the one-way valve is fixedly connected with an input end of a hydraulic equipment; an output end of the hydraulic equipment is connected with a solenoid valve, the solenoid valve is connected with an oil return pipeline; an upper end of the solenoid valve is fixedly connected with a pressure gauge for detecting pressure; an end of the oil return pipeline is connected with a filtering mechanism; an input end of a backflow valve is fixedly connected with the oil delivery pipeline I through a pipeline, an output end of the backflow valve is fixedly connected with the oil return pipeline through a pipeline.

[0012] Further, the hydraulic energy storage device comprises an oil delivery pipeline II, an accumulator and a pressure sensor, one end of the oil delivery pipeline II is fixedly connected with an output end of the one-way valve, the other end of the oil delivery pipeline II is fixedly connected with the accumulator; the lower end of the pressure sensor is fixedly connected with the accumulator.

[0013] Further, the filtering mechanism comprises a tool assembly for placing a filtering assembly and the filtering assembly for filtering hydraulic oil, the tool assembly is connected at the lower end of the mounting base, and the tool assembly is connected with the oil return pipeline; a plurality of filtering assemblies are mounted on the inner side of the tool assembly.

[0014] Further, the tool assembly comprises an oil inlet pipeline, a filtering box body, a ring-shaped plate, a disc, a tool groove, a clamping groove, an elastic fixing assembly and a sliding groove, the filtering box body is fixedly connected at the lower end of the mounting base; the oil inlet pipeline is fixedly connected at the upper end of the filtering box body, and the upper end of the oil inlet pipeline is fixedly connected with one end of the oil return pipeline through a pipeline; an oil outlet of the side wall of the filtering box body is fixedly connected with the oil tank through a pipeline; two ring-shaped plates are fixedly connected on the inner side of the filtering box body; a sliding groove is arranged between the two ring-shaped plates; the disc is rotationally connected with the ring-shaped plates through the sliding groove; a plurality of tool grooves are arranged on the side wall of the disc; two clamping grooves are arranged on the side wall of the tool groove in a limiting manner; and the elastic fixing assembly is arranged on the side wall of the tool groove.

[0015] Further, the plurality of tool grooves are arranged in a uniform circumferential array.

[0016] Further, the elastic fixing assembly comprises a slot, a spring and a baffle, the slot is arranged on the side wall of the tool groove; the baffle is limitingly and slidably connected with the slot; one end of the spring is fixedly connected with the side wall of the slot, and the other end of the spring is fixedly connected with the baffle.

[0017] Further, the filtering assembly comprises a tool plate, a filter screen, a clamping block and a plug block, the tool plate is mounted on the inner side of the tool groove; the filter screen is fixedly connected at the upper end of the tool plate; the clamping block is fixedly connected with the clamping groove in a plug-in manner on the side wall of the tool plate in a symmetrical manner; and the plug block is fixedly connected with the slot in a plug-in manner on the side wall of the tool plate.

[0018] Further, the arc-shaped protrusions are fixedly connected to the side wall of the tool plate.

[0019] Compared with the prior art, the utility model has the advantages that: the hydraulic pump drives the hydraulic oil in the oil tank to circulate, and realizes conversion of mechanical energy into hydraulic energy; the hydraulic energy storage device stores part of the hydraulic energy; when the hydraulic pump stops driving, the hydraulic energy storage device provides power for the equipment needing hydraulic pressure by transferring the stored hydraulic energy, reduces the working time of the hydraulic pump, realizes energy saving and consumption reduction; and the filter mechanism filters the hydraulic oil, preventing pipeline blockage caused by oil residue accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is the piping diagram of the energy-saving hydraulic station of the utility model;

[0022] Figure 2 It is the perspective of the energy-saving hydraulic station of the utility model Figure One ;

[0023] Figure 3 It is the front view of the energy-saving hydraulic station of the utility model;

[0024] Figure 4 It is the perspective of the energy-saving hydraulic station of the utility model Figure Two ;

[0025] Figure 5 It is the perspective of the energy-saving hydraulic station of the utility model Figure Three ;

[0026] Figure 6 It is the internal structure diagram of the filter box of the utility model;

[0027] Figure 7 It is the perspective of the filter box of the utility model;

[0028] Figure 8 It is Figure 7 the enlarged view of A in the figure;

[0029] Figure 9 It is the perspective of the tool plate of the utility model.

[0030] The reference numerals in the figure respectively represent:

[0031] 1, oil storage structure; 11, oil tank; 12, mounting bottom plate; 13, mounting frame; 2, hydraulic pump; 3, filtering mechanism; 31, tool assembly; 310, oil inlet pipeline; 311, filter box; 312, ring type plate; 313, disc; 314, tool groove; 315, clamping groove; 316, insertion groove; 317, spring; 318, baffle; 319, sliding groove; 32, filtering assembly; 321, tool plate; 322, filter screen; 323, clamping block; 324, insertion block; 325, arc-shaped protrusion; 4, backflow valve; 5, pressure gauge; 6, hydraulic energy storage device; 61, oil delivery pipeline two; 62, accumulator; 63, pressure sensor; 7, oil delivery pipeline one; 8, one-way valve; 9, electromagnetic valve; 10, oil return pipeline. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] In the following description, "left", "right", "front", "back", "up", and "down" are oriented in the perspective of the front view.

[0034] Embodiment one: in some embodiments, referring to the accompanying drawings of the specification Figures 1-9 , the energy-saving hydraulic station comprises an oil storage structure 1 and a hydraulic pump 2 connected with the oil storage structure 1.

[0035] The hydraulic pump 2 is connected with the hydraulic energy storage device 6, a one-way valve 8 is arranged between the hydraulic energy storage device 6 and the hydraulic pump 2, and the hydraulic energy storage device 6 is connected with the one-way valve 8 and the equipment requiring hydraulic oil.

[0036] In the present application, the hydraulic pump 2 drives the hydraulic oil to flow through the one-way valve 8 and finally to the hydraulic energy storage device 6 and the equipment requiring hydraulic oil, the hydraulic energy is stored by the hydraulic energy storage device 6, when the stored hydraulic energy of the hydraulic energy storage device 6 reaches a predetermined upper limit, the hydraulic pump 2 is closed, and the equipment requiring hydraulic oil is supplied with pressure by the hydraulic energy storage device 6; when the stored hydraulic energy of the hydraulic energy storage device 6 reaches a predetermined lower limit, the hydraulic pump 2 is started and the supply of pressure to the hydraulic energy storage device 6 and the equipment requiring hydraulic oil is restored.

[0037] In the present application, when the hydraulic pump 2 stops driving, the hydraulic energy stored in the hydraulic energy storage device 6 is transferred to the equipment requiring hydraulic power to reduce the working time of the hydraulic pump 2 and achieve energy saving and consumption reduction.

[0038] The oil storage structure 1 comprises an oil tank 11, a mounting bottom plate 12 and a mounting frame 13, the mounting frame 13 is connected with the mounting bottom plate 12 at the upper end, the mounting bottom plate 12 is fixedly connected with the oil tank 11 at the lower end, the output end of a hydraulic pump 2 is fixedly connected with the oil tank 11, a filtering mechanism 3 is connected with the mounting bottom plate 12 at the lower side, the filtering mechanism 3 is connected with the oil tank 11, and the mounting bottom plate 12 is connected with a hydraulic energy storage device 6, a one-way valve 8 and the hydraulic pump 2.

[0039] The oil tank 11 is fixedly connected with an oil conveying pipeline 7 at an oil outlet; the oil conveying pipeline 7 is fixedly connected with the input end of the one-way valve 8 at the end away from the oil tank 11; the one-way valve 8 is provided with two output ends, one output end of the one-way valve 8 is connected with the hydraulic energy storage device 6; the other output end of the one-way valve 8 is fixedly connected with the input end of a hydraulic equipment; the output end of the hydraulic equipment is connected with a solenoid valve 9, the solenoid valve 9 is connected with an oil return pipeline 10; the solenoid valve 9 is fixedly connected with a pressure gauge 5 at the upper end for detecting pressure; the oil return pipeline 10 is connected with the filtering mechanism 3 at the end; the input end of a backflow valve 4 is fixedly connected with the oil conveying pipeline 7 through a pipeline, and the output end of the backflow valve 4 is fixedly connected with the oil return pipeline 10 through a pipeline.

[0040] In the utility model, the inside hydraulic oil of the oil tank 11 is driven by the output end of the hydraulic pump 2 to enter the one-way valve 8 through the oil conveying pipeline 7, and the hydraulic oil enters the solenoid valve 9 and the hydraulic energy storage device 6 through the one-way valve 8; the hydraulic oil flowing through the hydraulic energy storage device 6 realizes the energy storage of hydraulic energy through the hydraulic energy storage device 6; after the hydraulic oil is pressurized for the hydraulic equipment through the solenoid valve 9, the hydraulic oil enters the oil return pipeline 10 through the solenoid valve 9, and the hydraulic oil entering the oil return pipeline 10 enters the inside of the oil tank 11 through the filtering mechanism 3, realizing the circulation of the hydraulic oil and the conversion of mechanical energy into hydraulic energy; when the hydraulic pump 2 stops pumping, the inside hydraulic oil of the hydraulic energy storage device 6 is driven by the hydraulic energy storage device 6 to enter the solenoid valve 9 finally to pressurize the equipment; when the energy storage of the hydraulic energy storage device 6 reaches the specified value, the hydraulic oil flows into the oil return pipeline 10 through the backflow valve 4 through the pipeline.

[0041] In the utility model, the inside hydraulic oil of the oil tank 11 is driven by the output end of the hydraulic pump 2 to realize the circulation of the hydraulic oil, and the conversion of mechanical energy into hydraulic energy is realized, and the hydraulic energy storage device 6 realizes the energy storage of part of the hydraulic energy, when the hydraulic pump 2 stops driving, the hydraulic energy storage device 6 transfers the stored hydraulic energy to the equipment needing hydraulic power to provide power, reduces the working time of the hydraulic pump 2, realizes energy saving and consumption reduction; the filtering mechanism 3 is used for filtering the hydraulic oil, preventing the pipeline from being blocked due to oil residue accumulation.

[0042] The hydraulic energy storage device 6 comprises an oil delivery pipeline 61, an accumulator 62 and a pressure sensor 63, one end of the oil delivery pipeline 61 is fixedly connected with the output end of the one-way valve 8, the other end of the oil delivery pipeline 61 is fixedly connected with the accumulator 62, and the lower end of the pressure sensor 63 is fixedly connected with the accumulator 62

[0043] In the utility model, the hydraulic oil flowing through the one-way valve 8 enters the accumulator 62 through the oil delivery pipeline 61 during the circulation process driven by the hydraulic pump 2, thereby realizing the energy storage of hydraulic energy; when the pressure sensor 63 detects that the internal pressure of the accumulator 62 is higher than the predetermined upper limit value, the hydraulic pump 2 stops driving, the accumulator 62 drives the hydraulic oil inside the accumulator 62 to flow through the electromagnetic valve 9 and finally supplies pressure to the equipment using hydraulic pressure; when the pressure sensor 63 detects that the internal pressure of the accumulator 62 is lower than the predetermined lower limit value, the accumulator 62 stops driving, and the hydraulic pump 2 drives the hydraulic oil inside the oil tank 11 to supply pressure to the accumulator 62.

[0044] In the utility model, the pressure sensor 63 detects the internal pressure value of the pipeline, the hydraulic pump 2 is closed and the accumulator 62 is started when the value is higher than the upper limit value, and the accumulator 62 is closed and the hydraulic pump 2 is started when the value is lower than the lower limit value, thereby realizing energy saving and consumption reduction while ensuring the continuous and stable pressure supply to the practical hydraulic equipment.

[0045] The filter mechanism 3 comprises a tool assembly 31 for placing a filter assembly 32 and the filter assembly 32 for filtering hydraulic oil, the tool assembly 31 is connected to the lower end of the mounting bottom plate 12 and connected with the oil return pipeline 10, and a plurality of filter assemblies 32 are installed inside the tool assembly 31.

[0046] The tool assembly 31 comprises an oil inlet pipeline 310, a filter box body 311, ring type plates 312, a disc 313, tool grooves 314, clamping grooves 315, insertion grooves 316, springs 317, baffles 318 and sliding grooves 319, the filter box body 311 is fixedly connected to the lower end of the mounting bottom plate 12, the oil inlet pipeline 310 is fixedly connected to the upper end of the filter box body 311 and fixedly connected to one end of the oil return pipeline 10 through a pipeline, the oil outlet of the side wall of the filter box body 311 is fixedly connected with the oil tank 11 through a pipeline, two ring type plates 312 are fixedly connected to the inner side wall of the filter box body 311, the sliding groove 319 is arranged between the two ring type plates 312, the disc 313 is rotationally connected with the ring type plates 312 through the sliding groove 319, a plurality of tool grooves 314 in uniform circumferential array are arranged on the side wall of the disc 313, the two clamping grooves 315 limiting the tool grooves 314 are arranged on the side wall of the disc 313, the insertion groove 316 is arranged on the side wall of the tool groove 314, the baffle 318 is limitingly and slidably connected with the insertion groove 316, one end of the spring 317 is fixedly connected with the side wall of the insertion groove 316, and the other end of the spring 317 is fixedly connected with the baffle 318.

[0047] The filter assembly 32 comprises a tool plate 321, a filter screen 322, a clamping block 323 and an inserting block 324, the tool plate 321 is arranged in the tool groove 314, the upper end of the tool plate 321 is fixedly connected with the filter screen 322, the lower end of the oil inlet pipeline 310 is aligned with the filter screen 322 at the upper end of one tool plate 321, the side wall of the tool plate 321 is fixedly connected with the clamping block 323 which is inserted into the clamping groove 315, the side wall of the tool plate 321 is fixedly connected with the inserting block 324 which is inserted into the inserting groove 316, and the side wall of the tool plate 321 is fixedly connected with the arc-shaped protrusion 325.

[0048] In the utility model, the hydraulic oil flowing through the oil return pipeline 10 enters the inside of the filter box 311 through the oil inlet pipeline 310 at the upper end of the filter box 311, the filter screen 322 at the lower end of the oil inlet pipeline 310 filters the oil residue of the hydraulic oil, the filtered hydraulic oil enters the oil tank 11 through the oil outlet at the side wall of the filter box 311, the filtration of the hydraulic oil is realized, and the cleanliness of the recovered hydraulic oil is ensured; the operator aligns the clamping block 323 at the side wall of the new tool plate 321 with the clamping groove 315, pushes the tool plate 321 to drive the clamping block 323 to limit sliding in the clamping groove 315, the tool plate 321 is inserted into the inside of the tool groove 314, when the clamping block 323 drives the inserting block 324 to abut against the baffle 318, the tool plate 321 is rotated through the disc 313, the arc-shaped protrusion 325 abuts against the side wall of the sliding groove 319, the tool plate 321 is driven by the inserting block 324 to slide inwards under the limiting action of the inserting groove 316, and the spring 317 is gradually compressed; when the new tool plate 321 is rotated to the inside of the sliding groove 319, the disc 313 drives the tool plate 321 to be replaced to rotate through the tool groove 314, the arc-shaped protrusion 325 always abuts against the side wall of the sliding groove 319 in the process that the tool plate 321 to be replaced rotates out of the sliding groove 319 between the ring-shaped plates 312, the spring 317 is gradually reset, the spring 317 drives the baffle 318 to gradually push the tool plate 321 outwards through the inserting block 324, when the arc-shaped protrusion 325 is completely misaligned with the sliding groove 319, the disc 313 drives the filter screen 322 at the upper end of a new tool plate 321 to move to the lower side of the oil inlet pipeline 310, and the tool plate 321 to be replaced is taken out.

[0049] In the utility model, the filter screen 322 filters the oil residue of the hydraulic oil, and the cleanliness of the recovered hydraulic oil is ensured; the new tool plate 321 is inserted into the clamping groove 315 through the clamping block 323, the disc 313 drives the tool plate 321 to rotate, the new tool plate 321 is rotated into the sliding groove 319, the disc 313 drives the tool plate 321 to be replaced to move away from the sliding groove 319, and the disc 313 drives the filter screen 322 at the upper end of a new tool plate 321 to move to the lower side of the oil inlet pipeline 310, so that the oil residue on the upper side of the filter screen 322 does not affect the filtering effect.

[0050] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy saving hydraulic station, characterized in that, The application relates to a hydraulic oil storage and supply device, which comprises an oil storage structure (1), a hydraulic pump (2) connected with the oil storage structure (1), a hydraulic energy storage device (6) connected with the hydraulic pump (2), and a one-way valve (8) arranged between the hydraulic energy storage device (6) and the hydraulic pump (2). The oil storage structure (1) comprises an oil tank (11), a mounting bottom plate (12) and a mounting frame (13), the mounting frame (13) is connected with the mounting bottom plate (12) at the upper end, the mounting bottom plate (12) is fixedly connected with the oil tank (11) at the lower end, the output end of the hydraulic pump (2) is fixedly connected with the oil tank (11), the mounting bottom plate (12) is connected with a filtering mechanism (3) at the lower side, the filtering mechanism (3) is connected with the oil tank (11), and the mounting bottom plate (12) is connected with the hydraulic energy storage device (6), the one-way valve (8) and the hydraulic pump (2).

2. The energy-efficient hydraulic station of claim 1, wherein, The oil tank (11) is fixedly connected with an oil conveying pipeline I (7) at the oil outlet, the end, away from the oil tank (11), of the oil conveying pipeline I (7) is fixedly connected with the input end of the one-way valve (8), the one-way valve (8) is provided with two output ends, the hydraulic energy storage device (6) is connected with one output end of the one-way valve (8), the other output end of the one-way valve (8) is fixedly connected with the input end of a hydraulic equipment, the output end of the hydraulic equipment is connected with an electromagnetic valve (9), the electromagnetic valve (9) is connected with an oil return pipeline (10), the upper end of the electromagnetic valve (9) is fixedly connected with a pressure gauge (5) used for detecting pressure, the end of the oil return pipeline (10) is connected with the filtering mechanism (3), and the input end of a backflow valve (4) is fixedly connected with the oil conveying pipeline I (7) through a pipeline, and the output end of the backflow valve (4) is fixedly connected with the oil return pipeline (10) through a pipeline.

3. The energy-efficient hydraulic station of claim 2, wherein, The hydraulic energy storage device (6) comprises an oil conveying pipeline II (61), an accumulator (62) and a pressure sensor (63), one end of the oil conveying pipeline II (61) is fixedly connected with the output end of the one-way valve (8), and the other end of the oil conveying pipeline II (61) is fixedly connected with the accumulator (62), and the lower end of the pressure sensor (63) is fixedly connected with the accumulator (62).

4. The energy-efficient hydraulic station of claim 1, wherein, The filtering mechanism (3) comprises a tool assembly (31) used for placing filtering assemblies (32) and the filtering assemblies (32) used for filtering hydraulic oil, the tool assembly (31) is connected at the lower end of the mounting bottom plate (12), and the tool assembly (31) is connected with the oil return pipeline (10); a plurality of filtering assemblies (32) are arranged in the tool assembly (31).

5. The energy-efficient hydraulic station of claim 2, wherein, ​ 6. The energy-efficient hydraulic station of claim 5, wherein, The tool assembly (31) comprises an oil inlet pipeline (310), a filter box (311), ring type plates (312), a disc (313), tool grooves (314), clamping grooves (315), elastic fixing assemblies and a sliding groove (319), the filter box (311) is fixedly connected to the lower end of the mounting bottom plate (12); the upper end of the filter box (311) is fixedly connected with the oil inlet pipeline (310), the upper end of the oil inlet pipeline (310) is fixedly connected with one end of the oil return pipeline (10) through a pipeline; the oil outlet of the side wall of the filter box (311) is fixedly connected with the oil tank (11) through a pipeline; the inner side wall of the filter box (311) is fixedly connected with two ring type plates (312); the sliding groove (319) is arranged between the two ring type plates (312); the disc (313) is rotatably connected with the ring type plates (312) through the sliding groove (319); the side wall of the disc (313) is provided with a plurality of tool grooves (314); the side wall of the tool groove (314) is provided with two limiting clamping grooves (315); the side wall of the tool groove (314) is provided with an elastic fixing assembly.

7. The energy-efficient hydraulic station of claim 6, wherein, The plurality of tool grooves (314) are arranged in a uniform circumferential array.

8. The energy-efficient hydraulic station of claim 6, wherein, The elastic fixing assembly comprises a slot (316), a spring (317) and a baffle (318), the side wall of the tool groove (314) is provided with the slot (316); the baffle (318) is limitingly and slidably connected with the slot (316); one end of the spring (317) is fixedly connected with the side wall of the slot (316), and the other end of the spring (317) is fixedly connected with the baffle (318).

9. The energy-efficient hydraulic station of claim 5, wherein, The filter assembly (32) comprises a tool plate (321), a filter screen (322), clamping blocks (323) and plug blocks (324), the inner side of the tool groove (314) is provided with the tool plate (321); the upper end of the tool plate (321) is fixedly connected with the filter screen (322); the side wall of the tool plate (321) is fixedly connected with the clamping blocks (323) which are inserted into the clamping grooves (315) in a symmetrical manner; the side wall of the tool plate (321) is fixedly connected with the plug blocks (324) which are inserted into the slots (316).

10. The energy-efficient hydraulic station of claim 9, wherein, The side wall of the tool plate (321) is fixedly connected with an arc-shaped protruding block (325).

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