Movable multi-path type electric hydraulic pump

Abstract

The utility model discloses a movable multi-path type electric hydraulic pump. The hydraulic pump is arranged in the oil cylinder, is connected with the electric driver and can realize multi-path output; the integrated multi-channel reversing valve is arranged on the valve seat and is connected with the hydraulic pump through a pipeline; the filter is arranged on an oil inlet hole of the valve seat; the cart is convenient for the electric hydraulic pump to move; according to the integrated multi-channel reversing valve, a plurality of oil outlet pipelines and a plurality of oil return pipelines are arranged in the valve body of the integrated multi-channel reversing valve, the pipelines of a plurality of reversing valves are integrated together, the leakage risk is reduced, the size of the reversing valve is reduced, and therefore the production cost is reduced, the reliability of equipment and the multi-channel output function are improved, and the complex hydraulic requirements are met; through the arrangement of the filter, impurities in hydraulic oil can be effectively removed during oil feeding, and the service life of equipment is prolonged; and through the arrangement of the cart, the electric hydraulic pump can freely move in different scenes, the flexibility of the equipment is improved, and the application range of the equipment is widened.

Description

Technical Field

[0001] This utility model relates to the field of electric hydraulic pump technology, specifically a portable multi-channel electric hydraulic pump. Background Technology

[0002] With the continuous development of industrial technology, hydraulic equipment is increasingly widely used in fields such as machinery manufacturing, engineering construction, and transportation. However, traditional multi-output electric hydraulic pumps generally suffer from large size and weight in the design and manufacturing process, which imposes many limitations on their application scenarios and ease of operation, and cannot meet the needs of outdoor operations. Traditional mobile hydraulic pumps are generally single-output, and if multi-output is required, multiple mobile hydraulic pumps need to be combined, which is complicated to operate and requires multiple people and multiple pieces of equipment to complete simultaneously, increasing the complexity and cost of the system. Therefore, a mobile multi-output electric hydraulic pump is proposed. Utility Model Content

[0003] The main purpose of this utility model is to provide a solution that can effectively address the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a movable multi-channel electric hydraulic pump, including a valve seat, an electric actuator mounted on the valve seat, a cylinder connected to the valve, a level gauge and an oil outlet mounted on the side of the cylinder, characterized in that: it further includes a hydraulic pump capable of multi-channel output mounted inside the cylinder and connected to the electric actuator, an integrated multi-channel directional valve mounted on the valve seat and connected to the hydraulic pump via pipeline, a filter mounted on the oil inlet of the valve seat, and a trolley for facilitating the movement of the electric hydraulic pump; the integrated multi-channel directional valve includes a valve body mounted on the cylinder with a built-in multi-channel oil circuit, a valve cover connected to the valve body, several oil outlet ports and several oil return ports connected to the multi-channel oil circuit inside the valve body, a directional component mounted on the valve cover for directional switching, a check valve connected to the hydraulic pump via pipeline, a throttle valve mounted on the valve body for controlling the flow rate, and a return pipe mounted at the bottom of the valve cover and passing through the valve seat into the cylinder; the valve body is provided with several oil outlet pipes connected to the oil outlet ports and oil return pipes connected to the oil return ports.

[0005] Preferably, the hydraulic pump includes a bearing connected to an electric actuator, a pump base mounted at the bottom of a valve seat for fixing the hydraulic pump, an upper connecting block connected to the pump base, an eccentric shaft connected to the bearing, a deep groove ball bearing and a double-row deep groove ball bearing disposed on the eccentric shaft, a plurality of plunger pairs disposed around the double-row deep groove ball bearings, an oil outlet connected to the plunger pairs, and an oil inlet disposed at the bottom of the hydraulic pump.

[0006] Preferably, the integrated multi-channel directional valve further includes several pressure gauges mounted on the valve body and several safety valves mounted on both sides of the valve cover.

[0007] Preferably, the reversing assembly includes a handle seat disposed on the valve cover, a handle disposed on the handle seat, an oil distribution plate disposed inside the valve cover for switching oil circuits, and a rotating shaft with one end connected to the handle seat and the other end connected to the oil distribution plate.

[0008] Preferably, a connecting plate for connecting to the oil distribution plate is provided between the valve body and the valve cover.

[0009] Preferably, the connecting plate, the oil distribution plate, the valve body, and the valve cover are all provided with an oil outlet hole that communicates with the oil outlet pipeline and an oil return hole that communicates with the oil return pipeline.

[0010] Preferably, the bottom of the valve cover is provided with a mounting plate for installing a one-way valve, and the mounting plate is provided with sealing gaskets at both the top and bottom.

[0011] Preferably, the valve seat is provided with a control unit electrically connected to the electric actuator.

[0012] Preferably, the trolley includes a base plate, a number of directional wheels and a number of omnidirectional wheels disposed at the bottom of the base plate, and a push-pull rod disposed on one side of the base plate.

[0013] This utility model has the following beneficial effects: By setting several oil outlet lines and several oil return lines in the valve body of the integrated multi-channel directional valve, the pipelines of multiple directional valves are integrated together, reducing the risk of leakage and reducing the size of the directional valve, thereby reducing production costs, improving the reliability of the equipment and the function of multi-output, and meeting complex hydraulic requirements; by setting a filter, impurities in the hydraulic oil can be effectively removed when the oil enters, extending the service life of the equipment; by setting a trolley, the electric hydraulic pump can move freely in different scenarios, improving the flexibility of the equipment and increasing the applicability of the equipment.

[0014] By using an eccentric shaft, the rotational motion of the electric drive is converted into the reciprocating linear motion of the plunger pair, which drives the flow of hydraulic oil and improves the working efficiency of the hydraulic pump. Furthermore, the use of double-row deep groove ball bearings significantly reduces the friction of the eccentric shaft, which can withstand radial and axial loads, extend the service life of the equipment, and ensure smooth operation. When combined with the plunger pair, it can maintain stable reciprocating motion under high pressure, thereby achieving precise hydraulic oil output and avoiding pressure fluctuations caused by vibration or instability.

[0015] By setting pressure gauges and safety valves, the system pressure is monitored and adjusted in real time, further improving the stability and safety of the system.

[0016] By setting up control units, automated control of equipment can be achieved, reducing the complexity of manual operation. Attached Figure Description

[0017] Figure 1This is a partial sectional front view of the present invention;

[0018] Figure 2 This is a partial sectional left view of the present invention;

[0019] Figure 3 This is a schematic diagram of the integrated multi-channel reversing valve structure of this utility model;

[0020] Figure 4 This is a right view of the integrated multi-channel directional valve of this utility model;

[0021] Figure 5 This is a top view of the integrated multi-channel directional valve of this utility model;

[0022] Figure 6 This is a top cross-sectional view of the valve body of this utility model;

[0023] Figure 7 This is a schematic diagram of the overall structure of the commutation component of this utility model;

[0024] Figure 8 This is an enlarged view of the integrated multi-channel directional valve of this utility model;

[0025] Figure 9 This is a top view of the hydraulic pump of this utility model;

[0026] Figure 10 This is a cross-sectional view of the hydraulic pump of this utility model.

[0027] Legend: 1. Valve seat; 2. Electric actuator; 3. Hydraulic cylinder; 4. Level gauge; 5. Drain port; 6. Hydraulic pump; 61. Bearing; 62. Pump base; 63. Upper connecting block; 64. Eccentric shaft; 65. Deep groove ball bearing; 66. Double row deep groove ball bearing; 67. Plunger pair; 68. Oil outlet; 69. Oil inlet; 7. Integrated multi-channel directional valve; 71. Valve body; 7101. Oil outlet line; 7102. Oil return line; 72. Valve cover; 73. 74. Oil outlet port; 75. Oil return port; 76. Reversing assembly; 77. Handle seat; 78. Handle; 79. Oil distribution plate; 70. Shaft; 710. Check valve; 711. Throttle valve; 72. Oil return pipe; 73. Pressure gauge; 74. Safety valve; 75. Connecting plate; 76. Mounting plate; 77. Sealing gasket; 8. Filter; 9. Trolley; 98. Base plate; 99. Casters; 90. Universal casters; 91. Push-pull rod; 10. Control unit. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1-10As shown, a movable multi-channel electric hydraulic pump includes a valve seat 1, an electric actuator 2 mounted on the valve seat 1, a cylinder 3 connected to the valve seat 1, a level gauge 4 and an oil drain port 5 mounted on the side of the cylinder 3. The pump is characterized by further including a hydraulic pump 6, connected to the electric actuator 2 and capable of multi-channel output, mounted on the valve seat 1 and connected to the hydraulic pump 6 via a pipeline; an integrated multi-channel directional valve 7; a filter 8 mounted on the oil inlet of the valve seat 1; and a trolley 9 for facilitating the movement of the electric hydraulic pump. The integrated multi-channel directional valve 7 includes a valve body 71 with a built-in multi-channel oil passage mounted on the cylinder 3, a valve cover 72 connected to the valve body 71, several oil outlet ports 73 and several oil return ports 74 connected to the multi-channel oil passage within the valve body 71, a directional assembly 75 mounted on the valve cover 72 for directional switching, and a check valve 74 connected to the hydraulic pump 6 via a pipeline. 6. A throttle valve 77 for controlling flow is installed on the valve body 71, and a return oil pipe 78 is installed at the bottom of the valve cover 72 and passes through the valve seat 1 into the oil cylinder 3; the valve body 71 is provided with several oil outlet pipes 7101 connected to the oil outlet port 73 and several return oil pipes 7102 connected to the return oil port 74; by setting several oil outlet pipes 7101 and several return oil pipes 7102 in the valve body 71 of the integrated multi-channel directional valve 7, the pipelines of multiple directional valves are integrated together, reducing the risk of leakage, reducing the size of the directional valve, thereby reducing production costs, improving the reliability of the equipment and the function of multi-output, and meeting complex hydraulic requirements; the filter 8 can effectively remove impurities in the hydraulic oil when it enters the oil, extending the service life of the equipment; the trolley 9 allows the electric hydraulic pump to move freely in different scenarios, improving the flexibility of the equipment and increasing its applicability.

[0030] In one embodiment, the hydraulic pump 6 includes a bearing 61 connected to the electric actuator 2, a pump seat 62 mounted on the bottom of the valve seat 1 for fixing the hydraulic pump 6, an upper connecting block 63 connected to the pump seat 62, an eccentric shaft 64 connected to the bearing 61, a deep groove ball bearing 65 and a double-row deep groove ball bearing 66 mounted on the eccentric shaft 64, a plurality of plunger pairs 67 mounted around the double-row deep groove ball bearing 66, an oil outlet 68 connected to the plunger pairs 67, and an oil inlet 69 mounted at the bottom of the hydraulic pump 6. Through the eccentric shaft 64, the rotational motion of the electric actuator 2 is converted into the reciprocating linear motion of the plunger pairs 67, driving the flow of hydraulic oil and improving the working efficiency of the hydraulic pump 6. Furthermore, the use of the double-row deep groove ball bearings 66 significantly reduces the friction of the eccentric shaft 64, reducing radial and axial loads, extending the service life of the equipment, and ensuring smooth operation. In conjunction with the plunger pairs 67, they can maintain stable reciprocating motion under high pressure, thereby achieving precise hydraulic oil output and avoiding pressure fluctuations caused by vibration or instability.

[0031] In one embodiment, the integrated multi-channel directional valve 7 further includes a plurality of pressure gauges 79 disposed on the valve body 71 and a plurality of safety valves 710 disposed on both sides of the valve cover 72; by setting the pressure gauges 79 and the safety valves 710, the system pressure is monitored and adjusted in real time, thereby further improving the stability and safety of the system.

[0032] In one embodiment, the reversing assembly 75 includes a handle seat 751 disposed on the valve cover 72, a handle 752 disposed on the handle seat 751, an oil distribution plate 753 disposed inside the valve cover 72 for switching oil circuits, and a rotating shaft 754 connected at one end to the handle seat 751 and at the other end to the oil distribution plate 753; the integrated multi-channel reversing valve 7 achieves rapid switching of oil circuits by rotating the handle 752, which drives the handle seat 751, the rotating shaft 754 and the oil distribution plate 753 to rotate.

[0033] In one embodiment, a connecting plate 711 connected to the distribution plate 753 is provided between the valve body 71 and the valve cover 72; the connecting plate 711, the distribution plate 753, the valve body 71 and the valve cover 72 are all provided with an oil outlet hole communicating with the oil outlet pipeline 7101 and a return oil hole communicating with the return oil pipeline 7102; after the hydraulic oil is switched through the oil circuit of the distribution plate 753, it enters from the oil outlet hole on the distribution plate 753 through the oil outlet hole on the connecting plate 711 and then flows to the hydraulic equipment through the oil outlet port 73 along the oil outlet pipeline 7101.

[0034] In one embodiment, the bottom of the valve cover 72 is provided with a mounting plate 712 for mounting a one-way valve 76, and the mounting plate 712 is provided with sealing gaskets 713 on both the top and bottom to increase the sealing performance of the connector.

[0035] In one embodiment, the valve seat 1 is provided with a control unit 10 electrically connected to the electric actuator 2; the control unit 10 is used to realize the automated control of the equipment and reduce the complexity of manual operation.

[0036] In one embodiment, the trolley 9 includes a base plate 91, a plurality of directional wheels 92 and a plurality of omnidirectional wheels 93 disposed at the bottom of the base plate 91, and a push-pull rod 94 disposed on one side of the base plate 91.

[0037] When using this utility model, the electric hydraulic pump is placed on the trolley 9, and several oil outlet ports 73 and oil return ports 74 are connected to the hydraulic equipment. When the electric hydraulic pump outputs oil, the reversing component 75 on the integrated multi-channel reversing valve 7 is rotated to side A, and then the control unit 10 is started to drive the electric driver 2 to run. The electric driver 2 drives the bearing 61, eccentric shaft 64, deep groove ball bearing 65 and double row deep groove ball bearing 66 in the hydraulic pump 6. The double row deep groove ball bearing 66 drives the plunger pair 67 to reciprocate, so that the hydraulic oil enters from the oil inlet 69, and then flows through the pipeline from multiple oil outlet ports 68 to the check valve 76 of the integrated multi-channel reversing valve 7 to deliver hydraulic oil. After entering from the check valve 76, the hydraulic oil passes through the oil outlet hole on the distribution plate 753 and the oil outlet hole on the connecting plate 711, enters from the oil outlet hole of the valve body 71, and then flows along the oil outlet pipeline 7101 from the oil outlet port 73 to the hydraulic equipment.

[0038] When returning oil, rotate the reversing component 75 on the integrated multi-channel reversing valve 7 to side B. The hydraulic oil in the hydraulic system enters from several return oil ports 74, flows out from the return oil hole of the valve body 71 along the return oil pipeline 7102, passes through the return oil hole on the connecting plate 711 and the return oil hole on the distribution plate 753, flows into the valve cover 72, and then flows into the oil cylinder 3 from the oil outlet hole in the valve cover 72 along the return oil pipeline 78.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable multi-channel electric hydraulic pump, comprising a valve seat (1), an electric actuator (2) mounted on the valve seat (1), a cylinder (3) connected to the valve seat (1), a level gauge (4) mounted on the side of the cylinder (3), and an oil outlet (5), characterized in that: It also includes a hydraulic pump (6) with multiple outputs that is installed inside the cylinder (3) and connected to the electric drive (2), an integrated multi-channel directional valve (7) installed on the valve seat (1) and connected to the hydraulic pump (6) through a pipeline, a filter (8) installed on the oil inlet of the valve seat (1), and a trolley (9) for easy movement of the electric hydraulic pump; the integrated multi-channel directional valve (7) includes a valve body (71) with a built-in multi-channel oil circuit installed on the cylinder (3), a valve cover (72) connected to the valve body (71), and several outlets connected to the multi-channel oil circuit inside the valve body (71). The valve body (71) has an oil port (73) and several return oil ports (74), a reversing assembly (75) for reversing is provided on the valve cover (72), a check valve (76) connected to the hydraulic pump (6) through a pipeline, a throttle valve (77) for controlling the flow rate is provided on the valve body (71), and a return oil pipe (78) is provided at the bottom of the valve cover (72) and passes through the valve seat (1) into the oil cylinder (3); the valve body (71) is provided with several oil outlet pipes (7101) connected to the oil outlet port (73) and return oil pipes (7102) connected to the return oil ports (74).

2. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: The hydraulic pump (6) includes a bearing (61) connected to an electric drive (2), a pump seat (62) mounted on the bottom of a valve seat (1) for fixing the hydraulic pump (6), an upper connecting block (63) connected to the pump seat (62), an eccentric shaft (64) connected to the bearing (61), a deep groove ball bearing (65) and a double-row deep groove ball bearing (66) disposed on the eccentric shaft (64), a plurality of plunger pairs (67) disposed around the double-row deep groove ball bearing (66), an oil outlet (68) connected to the plunger pairs (67), and an oil inlet (69) disposed at the bottom of the hydraulic pump (6).

3. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: The integrated multi-channel directional valve (7) also includes several pressure gauges (79) on the valve body (71) and several safety valves (710) on both sides of the valve cover (72).

4. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: The reversing assembly (75) includes a handle seat (751) disposed on the valve cover (72), a handle (752) disposed on the handle seat (751), an oil distribution plate (753) disposed inside the valve cover (72) for switching oil circuits, and a rotating shaft (754) with one end connected to the handle seat (751) and the other end connected to the oil distribution plate (753).

5. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: A connecting plate (711) that connects to the oil distribution plate (753) is provided between the valve body (71) and the valve cover (72).

6. A portable multi-channel electric hydraulic pump according to claim 5, characterized in that: The connecting plate (711), the oil distribution plate (753), the valve body (71) and the valve cover (72) are all provided with an oil outlet hole that communicates with the oil outlet pipeline (7101) and an oil return hole that communicates with the oil return pipeline (7102).

7. A portable multi-channel electric hydraulic pump according to claim 5, characterized in that: The valve cover (72) has a mounting plate (712) at the bottom for mounting a one-way valve (76), and the mounting plate (712) has sealing gaskets (713) on both the top and bottom.

8. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: The valve seat (1) is provided with a control unit (10) electrically connected to the electric actuator (2).

9. A portable multi-channel electric hydraulic pump according to claim 1, characterized in that: The trolley (9) includes a base plate (91), a number of directional wheels (92) and a number of omnidirectional wheels (93) located at the bottom of the base plate (91), and a push-pull rod (94) located on one side of the base plate (91).

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