Energy-saving hydraulic system

Abstract

The utility model relates to the technical field of hydraulic pressure, in particular to an energy-saving hydraulic system which comprises a device shell, an energy storage device is arranged at the top of the device shell, a hydraulic pump is arranged at one end of the top of the device shell, a pump rear pipe is arranged at the output end of the hydraulic pump, and a control box body is further arranged at the top of the device shell. An oil storage tank is arranged in the device shell, a pressure sensor is connected to the bottom end of an energy storage device, a pressure reducing valve is arranged at the output end of the energy storage device, a selection trigger is arranged in the control box body, a circuit breaker is arranged in the control box body, and a pump front pipe is connected to the surface of the oil storage tank in a penetrating mode. A sandwich valve is arranged on the surface of the pump front pipe, a filter screen is arranged in the oil injection port, and two sets of buckles are symmetrically arranged in the oil injection port. According to the embodiment, the lubricating effect of hydraulic oil is improved, meanwhile, the working efficiency of equipment is improved, and the efficient hydraulic effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic pressure, and particularly relates to an energy-saving hydraulic system. Background Art

[0002] Hydraulic motors driven by pressure oil are widely used in processing equipment, engineering machinery, military equipment and other fields due to their small size, smooth transmission, large power transmission and easy control.

[0003] After searching, in the prior art, Chinese patent application number: CN202221099899.3, application date: 2020-05-09, discloses an energy-saving hydraulic device, including an oil storage tank, an oil filling port, a pump front pipe, a hydraulic pump, a pump rear pipe and an energy-saving control device. The right rear side of the top of the oil storage tank is connected to the bottom of the hydraulic pump, the hydraulic pump input end is connected to the lower part of the rear end of the oil storage tank through the pump front pipe, and the other end of the pump rear pipe is connected to the accumulator input end. A pressure sensor is connected to the lower left side of the accumulator, and the pressure sensor is connected to the signal output end of the accumulator. The middle part of the rear side of the top of the oil storage tank is connected to the bottom end of the electric control box. A selection trigger and a short-circuit breaker are connected inside the electric control box. The selection trigger input end is connected to the output end of the pressure sensor, and the selection trigger output end is connected to the input end of the short-circuit breaker. The hydraulic pump is connected to the main circuit through the short-circuit breaker. The left side of the rear end of the electric control box is connected to one end of the hinge, and the other end of the hinge is connected to the front end of the box door panel.

[0004] However, the device still has the following defects: although it guarantees hydraulic output, reduces power consumption and improves reliability; the working efficiency of the device can still be improved, and the protection measures for the oil tank are lacking. Utility Model Content

[0005] In view of the above problems, the utility model provides an energy-saving hydraulic system, comprising a device housing, an energy storage device is provided on the top of the device housing, a hydraulic pump is provided at one end of the top of the device housing, a pump rear pipe is provided at the output end of the hydraulic pump, a control box is also provided at the top of the device housing, an oil storage tank is provided inside the device housing, an oil filling port is connected through the surface of the oil storage tank, a pressure sensor is connected to the bottom end of the energy storage device, and a pressure reducing valve is provided at the output end of the energy storage device;

[0006] An overflow valve is provided on the top of the energy storage device, a selection trigger is provided inside the control box, a circuit breaker is provided inside the control box, a liquid level observation window is embedded on the surface of the oil storage tank, a pump front pipe is connected through the surface of the oil storage tank, a superimposed valve is provided on the surface of the pump front pipe, a filter is provided inside the oil filling port, and two sets of fasteners are symmetrically provided inside the oil filling port.

[0007] Furthermore, a plurality of groups of fixed support legs are provided at the bottom of the device housing, and the plurality of groups of fixed support legs are all located at the bottom corners of the device housing.

[0008] Furthermore, two groups of protective doors are symmetrically arranged on one side wall of the device shell, and the two groups of protective doors are movably fitted with the device shell, and a group of door handles are provided at one end of the surface of the two groups of protective doors, and several groups of ventilation windows are opened on the surfaces of the two groups of protective doors, and the several groups of ventilation windows are located at the top of the protective doors.

[0009] Furthermore, a transparent observation window is embedded on the other side wall of the device shell. The transparent observation window is located at one end of the side wall of the device shell, and the liquid level observation window is arranged in close contact with the transparent observation window.

[0010] Furthermore, a limiting groove is provided on the same side wall of the device housing, the limiting groove is located directly above the transparent observation window, and the oil filling port passes through the interior of the limiting groove.

[0011] Furthermore, the energy storage device is located at a corner on one side of the top of the device housing, and the pump front pipe is connected to the input end of the energy storage device.

[0012] Furthermore, a support base is provided at the inner bottom end of the device housing, and the top of the support base is connected to the bottom of the oil storage tank.

[0013] Furthermore, the filter screen is arranged to fit the inner wall of the oil filling port, one end of the two groups of the fasteners are fixedly connected to the filter screen, and the other ends of the two groups of the fasteners are movably connected to the port of the oil filling port.

[0014] The beneficial effects of the utility model are:

[0015] 1. A stacking valve is provided on the surface of the front pipe of the pump, and then the stacking valve is electrically connected to the control box. Since there is inevitably pressure loss and flow loss when the hydraulic oil flows through various hydraulic valves, the pressure loss and flow loss are reduced by setting the stacking valve. The overall number of connecting pipes is reduced by setting the front pipe of the pump and the rear pipe of the pump, thereby improving the transmission efficiency in the pipeline, reducing the pressure loss and flow loss while achieving the effect of improving the transmission efficiency of the pipeline.

[0016] 2. A filter is provided inside the oil filling port, one end of each of the two sets of fasteners is fixedly connected to the filter, and the other ends of each of the two sets of fasteners are movably connected to the ports of the oil filling port, so as to filter the hydraulic oil injected into the oil storage tank, reduce the influence of impurities in the hydraulic oil on the hydraulic pump, improve the lubrication effect of the hydraulic oil, and at the same time improve the working efficiency of the equipment, so as to achieve a hydraulic high efficiency effect.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure according to an embodiment of the utility model is shown;

[0020] Figure 2 A front view of the housing structure of the device according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of the structure of an oil storage tank according to an embodiment of the utility model is shown;

[0022] Figure 4 A schematic cross-sectional view of an oil injection port according to an embodiment of the utility model is shown.

[0023] In the figure: 1. Device housing; 2. Fixed support leg; 3. Protective door; 4. Door handle; 5. Ventilation window; 6. Transparent observation window; 7. Limit slot; 8. Energy storage device; 9. Hydraulic pump; 10. Control box; 11. Oil storage tank; 12. Support base; 13. Oil filling port; 14. Pressure sensor; 15. Pressure reducing valve; 16. Overflow valve; 17. Selection trigger; 18. Circuit breaker; 19. Liquid level observation window; 20. Fastener; 21. Filter; 22. Pump front pipe; 23. Superimposed valve. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model embodiment provides an energy-saving hydraulic system, including a device housing 1; illustratively, as Figure 1-4 shown.

[0026] The bottom of the device housing 1 is provided with a plurality of groups of fixed support legs 2, and the plurality of groups of fixed support legs 2 are all located at the bottom corners of the device housing 1. Two groups of protective doors 3 are symmetrically provided on one side wall of the device housing 1, and the two groups of protective doors 3 are movably fitted with the device housing 1, and a group of door handles 4 are provided at one end of the surface of the two groups of protective doors 3, and the surfaces of the two groups of protective doors 3 are provided with a plurality of groups of ventilation windows 5, and the plurality of groups of ventilation windows 5 are all located at the top of the protective doors 3;

[0027] A transparent observation window 6 is embedded on the other side wall of the device housing 1, and the transparent observation window 6 is located at one end of the side wall of the device housing 1. A limit slot 7 is provided on the same side wall of the device housing 1, and the limit slot 7 is located directly above the transparent observation window 6. An energy storage device 8 is provided on the top of the device housing 1, and the energy storage device 8 is located at a corner on one side of the top of the device housing 1. A hydraulic pump 9 is provided at one end of the top of the device housing 1;

[0028] The output end of the hydraulic pump 9 is provided with a pump rear pipe, the pump front pipe is connected to the input end of the energy storage device 8, the top of the device housing 1 is also provided with a control box 10, the inside of the device housing 1 is provided with an oil storage tank 11, the bottom of the inner part of the device housing 1 is provided with a support base 12, the top of the support base 12 is connected to the bottom of the oil storage tank 11, the surface of the oil storage tank 11 is connected with an oil injection port 13, and the oil injection port 13 passes through the inside of the limit slot 7;

[0029] The bottom end of the energy storage device 8 is connected to a pressure sensor 14, the output end of the energy storage device 8 is provided with a pressure reducing valve 15, the top of the energy storage device 8 is provided with an overflow valve 16, the central axis of the overflow valve 16 coincides with the central axis of the energy storage device 8, the control box 10 is provided with a selection trigger 17 inside, the control box 10 is provided with a circuit breaker 18 inside, the selection trigger 17 is electrically connected to the circuit breaker 18, and the selection trigger 17 is electrically connected to the pressure sensor 14;

[0030] A liquid level observation window 19 is embedded in the surface of the oil storage tank 11, and the liquid level observation window 19 is arranged in close contact with the transparent observation window 6. A pump front pipe 22 is connected to the surface of the oil storage tank 11, and one end of the pump front pipe 22 is connected to the input end of the hydraulic pump 9. A superimposed valve 23 is provided on the surface of the pump front pipe 22, and the superimposed valve 23 is electrically connected to the control box 10.

[0031] A filter screen 21 is provided inside the oil filling port 13, and the filter screen 21 is arranged in close contact with the inner wall of the oil filling port 13. Two groups of fasteners 20 are symmetrically provided inside the oil filling port 13, one end of the two groups of fasteners 20 are fixedly connected to the filter screen 21, and the other ends of the two groups of fasteners 20 are movably connected to the port of the oil filling port 13.

[0032] Specifically, when the equipment is running, the hydraulic pump 9 acts to supply the liquid oil in the oil storage tank 11 to the energy storage device 8 in the order of the pump front pipe 22 to the pump rear pipe, and then the energy storage device 8 stores energy and outputs it. The interior of the energy storage device 8 will present different pressures according to the operating status, and the pressure will be sensed by the pressure sensor 14. The pressure signal is transmitted to the selection trigger 17 through the pressure sensor 14. After setting different pressure trigger values ​​in the selection trigger 17, different states of the circuit breaker 18 can be triggered according to different pressures.

[0033] An energy-saving hydraulic system proposed by the embodiment of the utility model has the following working principle:

[0034] When the equipment is running, the hydraulic pump 9 (iron-based alloy material) is used to supply the liquid oil in the oil storage tank 11 to the energy storage device 8 through the pump front pipe 22 and the pump rear pipe in sequence, and then the energy storage device 8 stores energy and outputs it. The inside of the energy storage device 8 will present different pressures according to the running state, and the pressure sensor 14 senses it. The pressure sensor 14 transmits the pressure signal to the selection trigger 17. After setting different pressure trigger values ​​in the selection trigger 17, different states of the circuit breaker 18 can be triggered according to different pressures.

[0035] By setting the device housing 1, the oil storage tank 11 is protected and the interference of the outside world on the oil storage tank 11 is reduced. Then, a filter screen 21 is provided inside the oil filling port 13, and one end of the two groups of the fasteners 20 are fixedly connected to the filter screen 21, and the other ends of the two groups of the fasteners 20 are movably connected to the ports of the oil filling port 13, so that the hydraulic oil injected into the oil storage tank 11 is filtered, and the influence of impurities in the hydraulic oil on the hydraulic pump 9 is reduced, and the lubrication effect of the hydraulic oil is improved, thereby improving the working efficiency of the equipment;

[0036] A stacking valve 23 is provided on the surface of the pump front pipe 22, and the stacking valve 23 is electrically connected to the control box 10. Since there is inevitably pressure loss and flow loss when the hydraulic oil flows through various hydraulic valves, the stacking valve 23 is provided to reduce the pressure loss and flow loss;

[0037] By disposing the pump front pipe 22 and the pump rear pipe, the total number of connecting pipes is reduced, thereby improving the transmission efficiency in the pipeline.

[0038] 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 replacements for some of the technical features therein; and these modifications or replacements 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. An energy-saving hydraulic system, comprising a device housing (1), characterized in that: An energy storage device (8) is provided on the top of the device housing (1), a hydraulic pump (9) is provided at one end of the top of the device housing (1), a pump rear pipe is provided at the output end of the hydraulic pump (9), a control box (10) is also provided on the top of the device housing (1), an oil storage tank (11) is provided inside the device housing (1), an oil filling port (13) is connected through the surface of the oil storage tank (11), a pressure sensor (14) is connected to the bottom end of the energy storage device (8), and a pressure reducing valve (15) is provided at the output end of the energy storage device (8); A relief valve (16) is provided on the top of the energy storage device (8), a selection trigger (17) is provided inside the control box (10), a circuit breaker (18) is provided inside the control box (10), a liquid level observation window (19) is embedded in the surface of the oil storage tank (11), a pump front pipe (22) is connected through the surface of the oil storage tank (11), a superimposed valve (23) is provided on the surface of the pump front pipe (22), a filter screen (21) is provided inside the oil filling port (13), and two groups of fasteners (20) are symmetrically provided inside the oil filling port (13).

2. The energy-saving hydraulic system according to claim 1, characterized in that: A plurality of groups of fixed support legs (2) are provided at the bottom of the device housing (1), and the plurality of groups of fixed support legs (2) are all located at the bottom corners of the device housing (1).

3. The energy-saving hydraulic system according to claim 2, characterized in that: Two groups of protective doors (3) are symmetrically arranged on one side wall of the device housing (1), and the two groups of protective doors (3) are movably fitted with the device housing (1). A group of door handles (4) are arranged at one end of the surface of the two groups of protective doors (3). The surfaces of the two groups of protective doors (3) are provided with a plurality of ventilation windows (5), and the plurality of ventilation windows (5) are located at the top of the protective doors (3).

4. The energy-saving hydraulic system according to claim 3, characterized in that: A transparent observation window (6) is embedded in the other side wall of the device housing (1); the transparent observation window (6) is located at one end of the side wall of the device housing (1); and the liquid level observation window (19) is arranged in close contact with the transparent observation window (6).

5. The energy-saving hydraulic system according to claim 3, characterized in that: A limit slot (7) is provided on the same side wall of the device housing (1), the limit slot (7) is located directly above the transparent observation window (6), and the oil injection port (13) passes through the interior of the limit slot (7).

6. The energy-saving hydraulic system according to claim 5, characterized in that: The energy storage device (8) is located at a corner on one side of the top of the device housing (1), and the pump front pipe is connected to the input end of the energy storage device (8).

7. The energy-saving hydraulic system according to claim 6, characterized in that: A support base (12) is provided at the inner bottom end of the device housing (1), and the top of the support base (12) is connected to the bottom of the oil storage tank (11).

8. The energy-saving hydraulic system according to claim 1, characterized in that: The filter screen (21) is arranged to fit the inner wall of the oil filling port (13), one end of the two sets of the fasteners (20) are fixedly connected to the filter screen (21), and the other ends of the two sets of the fasteners (20) are arranged to be movably fastened to the port of the oil filling port (13).

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