Energy-saving hydraulic server

Abstract

The utility model belongs to the technical field of hydraulic servers, and particularly relates to an energy-saving hydraulic server which comprises a base, an oil tank, a motor and a hydraulic pump are installed on the base, a cooling assembly is installed in the oil tank and comprises a cooling plate, the size of the cooling plate is consistent with the size of the oil tank, and the cooling plate is arranged on the base. A liquid inlet and a liquid outlet are respectively formed in two sides of the cooling plate; cooling liquid in the cooling plate absorbs the temperature of hydraulic oil in the oil tank for cooling, meanwhile, the cooling liquid pushes the blades to rotate when flowing, the threaded ring is matched with the reciprocating lead screw, the cooling plate automatically and circularly moves up and down, then the hydraulic oil in the oil tank is comprehensively cooled, the overall cooling effect of the hydraulic oil is improved, and the service life of the hydraulic oil tank is prolonged. And the cooling plate is driven by hydraulic power, additional driving equipment is not needed, and energy consumption is relatively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic servers, in particular to an energy-saving hydraulic server. Background Art

[0002] A hydraulic station is a hydraulic source device or a hydraulic device including a control valve, which is composed of a hydraulic pump, a driving motor, an oil tank, a directional valve, a relief valve, etc. A hydraulic station is also called a hydraulic pump station. The motor drives the hydraulic pump to rotate, and the pump sucks oil from the oil tank and pumps it, converting mechanical energy into the pressure energy of hydraulic oil. The hydraulic oil is transmitted to the oil cylinder or oil motor of the hydraulic machinery through an external pipeline after the direction, pressure and flow of the hydraulic oil are adjusted by the hydraulic valve through an integrated block (or valve combination), thereby controlling the change of direction, force and speed of the hydraulic motor, and driving various hydraulic machinery to do work. Hydraulic stations are mainly used in logistics lifting equipment, metal forming machines, metallurgical equipment, hot / cold rolling, cement rotary furnaces, glass manufacturing and rubber machinery, etc.

[0003] During the use of the hydraulic servo, the temperature of the hydraulic oil in the oil tank will increase. When the temperature of the hydraulic oil is too high, it is easy to cause the production performance of the equipment to decrease. Generally, when cooling water is used to cool the oil tank, the cooling water cannot be recycled, resulting in waste.

[0004] The existing Chinese patent with announcement number CN211039255U discloses a cooling and energy-saving servo hydraulic station, including a bottom box and an oil tank, the back side of the left side of the top of the bottom box is fixedly connected to the bottom of the oil tank, the left side of the bottom of the inner wall of the bottom box is fixedly connected to a water tank, and both sides of the water tank are fixedly connected to refrigeration plates, the top of the left side of the bottom box is fixedly connected to a circulating pump through a support plate, and the water inlet of the circulating pump is connected to a water inlet pipe, and the end of the water inlet pipe away from the circulating pump passes through the bottom box and the water tank in turn and extends to the inside of the water tank.

[0005] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the cooling pipe of the device is fixed in the internal position of the oil tank, and only cools the oil near it, and the cooling effect of the entire tank needs to be improved; therefore, an energy-saving hydraulic servo is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes an energy-saving hydraulic servo.

[0007] The technical solution adopted by the utility model to solve its technical problems is: an energy-saving hydraulic servo described in the utility model includes a base, an oil tank, a motor, and a hydraulic pump are installed on the base, the motor drives the hydraulic pump to rotate, the pump sucks oil from the oil tank and then pumps oil, and converts mechanical energy into pressure energy of hydraulic oil. The hydraulic oil is transmitted to the oil cylinder or oil motor of the hydraulic machinery through an external pipeline after the direction, pressure and flow are adjusted by the hydraulic valve through an integrated valve, thereby controlling the change of direction, force and speed of the hydraulic motor, and promoting various hydraulic machinery to do work. The content of the equipment not described in detail belongs to the prior art known to professional and technical personnel in this field, a cooling component is installed inside the oil tank, and the cooling component includes a cooling plate. The size of the cooling plate is consistent with the size of the oil tank, and liquid inlets are respectively installed on both sides of the cooling plate and a liquid outlet, the liquid inlet and the liquid outlet are respectively fixedly connected with a liquid inlet pipe and a liquid outlet pipe, a rotating interface is opened at the center of the cooling plate, a threaded ring is rotatably connected inside the rotating interface, a reciprocating screw is threadedly connected at the center of the threaded ring, and both ends of the reciprocating screw are rotatably connected to the oil tank, a plurality of blades are fixedly connected to the side wall of the threaded ring, coolant is introduced into the interior of the cooling plate through the liquid inlet pipe, and then the coolant flows out from the liquid outlet pipe, and the temperature of the hydraulic oil in the oil tank is cooled by the coolant inside the cooling plate. At the same time, the blades are pushed to rotate when the coolant flows, and the cooperation of the threaded ring and the reciprocating screw makes the cooling plate automatically circulate up and down, thereby comprehensively cooling the hydraulic oil in the oil tank, thereby improving the overall cooling effect of the hydraulic oil, and the cooling plate is driven by hydraulic power, without the need for additional driving equipment, and relatively saving energy consumption.

[0008] Preferably, the threaded ring is configured as an I-shape, and a sealing ring is installed at the intersection of the threaded ring and the cooling plate, so that the intersection of the threaded ring and the cooling plate is sealed by the sealing ring to prevent liquid leakage.

[0009] Preferably, a plurality of flow channels distributed in a matrix are provided on the surface of the cooling plate, and the hydraulic oil flows through the flow channels through the cooling plate, thereby reducing the resistance of the cooling plate when it moves up and down.

[0010] Preferably, the cooling assembly also includes a water tank, and refrigeration plates are respectively installed on both sides of the water tank, and the refrigeration plates are used to cool the coolant inside the water tank. The water tank is installed inside the base, and one end of the liquid inlet pipe and the liquid outlet pipe respectively penetrate into the interior of the water tank. The coolant in the water tank is pumped into the cooling plate through the liquid inlet pipe by a water pump, and then the coolant flows back to the inside of the water tank through the liquid outlet pipe.

[0011] Preferably, a water pump is connected to the liquid inlet pipe, and the water pump is fixedly connected to the water tank.

[0012] Preferably, the upper side wall of the oil tank protrudes outward to form a protruding box, and an addition port and a return port are respectively installed on the top of the protruding box. A filter assembly is installed inside the protruding box, and hydraulic oil can be added to or returned to the oil tank through the addition port and the return port. When the hydraulic oil enters, impurities are filtered through the filter cover to avoid affecting the normal operation of the equipment. The operating drive can drive the filter cover to rotate through the transmission cooperation between the connecting piece and the connecting groove to generate centrifugal force, thereby improving the filtering efficiency of the filter cover for the hydraulic oil.

[0013] Preferably, the filter assembly includes a threaded interface, which is opened at the bottom of the raised box, and the internal threads of the threaded interface are connected with a sealing plug, and impurities in the filter cover can be cleaned by removing the sealing plug.

[0014] Preferably, a filter cover is installed above the sealing plug, and a connecting groove is provided at the bottom of the filter cover.

[0015] Preferably, a driver is fixedly connected to the bottom center of the sealing plug, a driving end of the driver passes through the sealing plug and is fixedly connected to a connecting piece, and the connecting piece is plugged into the connecting groove for transmission connection.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model cools down the hydraulic oil in the oil tank by absorbing the temperature of the coolant inside the cooling plate. At the same time, the coolant drives the blades to rotate when it flows. Through the cooperation of the threaded ring and the reciprocating screw, the cooling plate automatically circulates up and down, thereby comprehensively cooling the hydraulic oil in the oil tank and improving the overall cooling effect of the hydraulic oil. The cooling plate is driven by water power and does not require additional driving equipment, which relatively saves energy consumption.

[0018] 2. The utility model can add or return hydraulic oil to the oil tank through the addition port and the return port. When the hydraulic oil enters, impurities are filtered through the filter cover to avoid affecting the normal operation of the equipment. The operating driver can drive the filter cover to rotate and generate centrifugal force through the transmission cooperation between the connecting piece and the connecting groove, thereby improving the filtering efficiency of the filter cover for the hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the oil tank and the convex box of the utility model;

[0022] Figure 3 This is a schematic diagram of the cooling assembly structure of the utility model;

[0023] Figure 4 This is a cross-sectional view of the cooling plate of the utility model;

[0024] Figure 5 This is a schematic diagram of the expanded structure of the filter assembly of the utility model.

[0025] In the figure: 1. base; 2. oil tank; 3. motor; 4. hydraulic pump; 5. cooling assembly; 51. cooling plate; 52. liquid inlet pipe; 53. liquid outlet pipe; 54. threaded ring; 55. reciprocating screw; 56. blade; 57. circulation channel; 58. water tank; 59. water pump; 6. protrusion box; 7. addition port; 8. reflux port; 9. filter assembly; 91. threaded interface; 92. sealing plug; 93. filter cover; 94. driver; 95. connector; 96. connecting groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] Embodiment 1

[0028] See also Figure 1-4As shown, an energy-saving hydraulic servo comprises a base 1, on which an oil tank 2, a motor 3 and a hydraulic pump 4 are installed. The motor 3 drives the hydraulic pump 4 to rotate, and the pump sucks oil from the oil tank 2 and then pumps oil, thereby converting mechanical energy into pressure energy of hydraulic oil. The hydraulic oil is transmitted to the oil cylinder or oil motor of the hydraulic machinery through an external pipeline after the direction, pressure and flow rate are adjusted by the hydraulic valve through an integrated valve, thereby controlling the change of direction, force and speed of the hydraulic motor, and driving various hydraulic machinery to do work. The content of the device not described in detail belongs to the prior art known to professional and technical personnel in this field. A cooling assembly 5 is installed inside the oil tank 2, and the cooling assembly 5 includes a cooling plate 51. The size of the cooling plate 51 is consistent with the size of the oil tank 2. A liquid inlet and a liquid outlet are respectively installed on both sides of the cooling plate 51, and a liquid inlet pipe 5 is fixedly connected to the liquid inlet and the liquid outlet. 2 and a liquid outlet pipe 53, a rotating interface is provided at the center of the cooling plate 51, and a threaded ring 54 is rotatably connected inside the rotating interface, and a reciprocating screw 55 is threadedly connected at the center of the threaded ring 54, and both ends of the reciprocating screw 55 are rotatably connected to the oil tank 2, and a plurality of blades 56 are fixedly connected to the side wall of the threaded ring 54, and the coolant is introduced into the interior of the cooling plate 51 through the liquid inlet pipe 52, and then the coolant flows out from the liquid outlet pipe 53, and the coolant inside the cooling plate 51 absorbs the temperature of the hydraulic oil in the oil tank 2 to cool it down, and at the same time, the coolant pushes the blades 56 to rotate when it flows, and the threaded ring 54 cooperates with the reciprocating screw 55, so that the cooling plate 51 automatically circulates up and down, thereby comprehensively cooling the hydraulic oil in the oil tank 2, thereby improving the overall cooling effect of the hydraulic oil, and the cooling plate 51 is driven by water power, without the need for additional driving equipment, and relatively saving energy consumption.

[0029] The threaded ring 54 is designed to be I-shaped, and a sealing ring is installed at the intersection of the threaded ring 54 and the cooling plate 51. The sealing ring is used to seal the intersection of the threaded ring 54 and the cooling plate 51 to prevent liquid leakage.

[0030] A plurality of flow channels 57 distributed in a matrix are provided on the surface of the cooling plate 51 , and the hydraulic oil flows through the flow channels 57 through the cooling plate 51 , thereby reducing the resistance of the cooling plate 51 when it moves up and down.

[0031] The cooling assembly 5 also includes a water tank 58, and refrigeration plates are respectively installed on both sides of the water tank 58. The refrigeration plates are used to cool the coolant inside the water tank 58. The water tank 58 is installed inside the base 1. One end of the liquid inlet pipe 52 and the liquid outlet pipe 53 respectively penetrate into the water tank 58. The coolant in the water tank 58 is pumped into the cooling plate 51 through the liquid inlet pipe 52 by a water pump 59, and then the coolant flows back to the inside of the water tank 58 through the liquid outlet pipe 53.

[0032] A water pump 59 is connected to the liquid inlet pipe 52 , and the water pump 59 is fixedly connected to the water tank 58 .

[0033] Embodiment 2

[0034] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, the upper side wall of the oil tank 2 protrudes outward to form a protrusion box 6, and an addition port 7 and a return port 8 are respectively installed above the protrusion box 6. A filter component 9 is installed inside the protrusion box 6. Hydraulic oil can be added to or returned to the oil tank 2 through the addition port 7 and the return port 8. When the hydraulic oil enters, impurities are filtered through the filter cover 93 to avoid affecting the normal operation of the equipment. The operating driver 94 can drive the filter cover 93 to rotate through the transmission cooperation of the connecting piece 95 and the connecting groove 96 to generate centrifugal force, thereby improving the filtering efficiency of the filter cover 93 for the hydraulic oil.

[0035] The filter assembly 9 includes a threaded interface 91 , which is provided at the bottom of the protruding box 6 . The inner thread of the threaded interface 91 is connected with a sealing plug 92 . The impurities in the filter cover 93 can be cleaned by removing the sealing plug 92 .

[0036] A filter cover 93 is installed above the sealing plug 92 , and a connecting groove 96 is formed at the bottom of the filter cover 93 .

[0037] A driver 94 is fixedly connected to the bottom center of the sealing plug 92. The driving end of the driver 94 passes through the sealing plug 92 and is fixedly connected to a connector 95. The connector 95 is plugged into a connecting groove 96 for transmission connection.

[0038] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and according to the actual situation, a suitable controller should be selected to be electrically connected to the water pump 59, the motor 3, and the hydraulic pump 4 to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0039] The working principle is that the coolant is introduced into the interior of the cooling plate 51 through the liquid inlet pipe 52, and then the coolant flows out from the liquid outlet pipe 53. The coolant inside the cooling plate 51 absorbs the temperature of the hydraulic oil in the oil tank 2 to cool it down. At the same time, the flow of coolant pushes the blades 56 to rotate. Through the cooperation of the threaded ring 54 and the reciprocating screw 55, the cooling plate 51 automatically circulates up and down, thereby comprehensively cooling the hydraulic oil in the oil tank 2, improving the overall cooling effect of the hydraulic oil, and the cooling plate 51 is driven by hydraulic power, without the need for additional driving equipment, which is relatively energy-saving.

[0040] Hydraulic oil can be added or returned to the oil tank 2 through the addition port 7 and the return port 8. When the hydraulic oil enters, impurities are filtered through the filter cover 93 to avoid affecting the normal operation of the equipment. The operating driver 94 can drive the filter cover 93 to rotate through the transmission cooperation between the connecting piece 95 and the connecting groove 96 to generate centrifugal force, thereby improving the filtering efficiency of the filter cover 93 for the hydraulic oil.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An energy-saving hydraulic servo, comprising a base (1), on which an oil tank (2), a motor (3), and a hydraulic pump (4) are mounted, characterized in that: A cooling assembly (5) is installed inside the oil tank (2), and the cooling assembly (5) includes a cooling plate (51). The size of the cooling plate (51) is consistent with the size of the oil tank (2). A liquid inlet and a liquid outlet are installed on both sides of the cooling plate (51), and a liquid inlet pipe (52) and a liquid outlet pipe (53) are fixedly connected to the liquid inlet and the liquid outlet, respectively. A rotating interface is opened at the center of the cooling plate (51), and a threaded ring (54) is rotatably connected inside the rotating interface. A reciprocating screw (55) is threadedly connected at the center of the threaded ring (54), and both ends of the reciprocating screw (55) are rotatably connected to the oil tank (2). The side wall of the threaded ring (54) is fixedly connected to a plurality of blades (56).

2. The energy-saving hydraulic servo according to claim 1, characterized in that: The threaded ring (54) is configured as an I-shape, and a sealing ring is installed at the intersection of the threaded ring (54) and the cooling plate (51).

3. The energy-saving hydraulic servo according to claim 1, characterized in that: The surface of the cooling plate (51) is provided with a plurality of flow channels (57) distributed in a matrix.

4. The energy-saving hydraulic servo according to claim 1, characterized in that: The cooling assembly (5) further comprises a water tank (58), wherein the water tank (58) is installed inside the base (1), and one end of the liquid inlet pipe (52) and the liquid outlet pipe (53) respectively penetrates into the interior of the water tank (58).

5. The energy-saving hydraulic servo according to claim 4, characterized in that: The liquid inlet pipe (52) is connected to a water pump (59), and the water pump (59) is fixedly connected to a water tank (58).

6. The energy-saving hydraulic servo according to claim 1, characterized in that: The upper side wall of the oil tank (2) protrudes outward to form a protruding box (6), and a adding port (7) and a return port (8) are respectively installed above the protruding box (6), and a filter assembly (9) is installed inside the protruding box (6).

7. The energy-saving hydraulic servo according to claim 6, characterized in that: The filter assembly (9) comprises a threaded interface (91), wherein the threaded interface (91) is provided at the bottom of the raised box (6), and a sealing plug (92) is connected to the inner thread of the threaded interface (91).

8. The energy-saving hydraulic servo according to claim 7, characterized in that: A filter cover (93) is installed above the sealing plug (92), and a connecting groove (96) is provided at the bottom of the filter cover (93).

9. The energy-saving hydraulic servo according to claim 7, characterized in that: A driver (94) is fixedly connected to the center of the bottom of the sealing plug (92), and a driving end of the driver (94) passes through the sealing plug (92) and is fixedly connected to a connecting piece (95).

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