Energy-saving oil pressure supply device

Abstract

The utility model discloses an energy-saving oil pressure supply device, and belongs to the technical field of hydraulic cylinders. Comprising an input piece, an output piece, a buffer piece and a connecting piece, the input piece comprises an input pipe and a one-way valve, the one-way valve is installed at one end of the input pipe, the output piece comprises a first output pipe and a second output pipe, the first output pipe is connected with the second output pipe, the buffer piece comprises a buffer pipe and a buffer mechanism, the buffer mechanism is installed in the buffer pipe, and the connecting piece is a three-way valve. Three interfaces of the three-way valve are respectively connected with the other end of the input pipe, the free end of the first output pipe and the free end of the buffer pipe, and the buffer mechanism absorbs and releases oil pressure; the energy-saving oil pressure supply device can achieve the effects of absorbing the pressure of hydraulic oil and slowly releasing the oil pressure after the oil pump is stopped, so that the pressure of the hydraulic oil on the piston rod of the oil cylinder is kept within a certain time after the oil pump is stopped, and the purposes of reducing the working time of the oil pump and reducing the energy consumption of the oil pump are achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an energy-saving hydraulic supply device. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). The oil pump pumps hydraulic oil into the hydraulic cylinder, causing the piston rod of the hydraulic cylinder to move under the action of oil pressure.

[0003] However, in order to maintain the state of the piston rod of the hydraulic cylinder after the existing hydraulic cylinder oil supply device supplies oil, it is necessary to ensure the oil pressure at the input end of the hydraulic cylinder. Therefore, the oil pump of the existing oil supply device needs to be in working condition all the time, resulting in high energy consumption of the existing hydraulic cylinder oil supply device. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving hydraulic supply device to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] An energy-saving hydraulic supply device includes an input component, an output component, a buffer component, and a connector. The input component includes an input pipe and a one-way valve, with the one-way valve installed at one end of the input pipe. The output component includes a first output pipe and a second output pipe connected together. The buffer component includes a buffer pipe and a buffer mechanism, with the buffer mechanism installed inside the buffer pipe. The connector is a three-way valve, with its three ports connected to the other end of the input pipe, the free end of the first output pipe, and the free end of the buffer pipe, respectively. The buffer mechanism absorbs and releases hydraulic pressure.

[0007] The beneficial effect of adopting the above-mentioned further solution is that the buffer mechanism can absorb the pressure of hydraulic oil. When the oil pump is working, the buffer mechanism does not release pressure to the outside under the action of oil pressure. After the oil pump stops, the oil pressure is slowly released, thereby maintaining the pressure of hydraulic oil on the piston rod of the oil cylinder for a certain period of time after the oil pump stops, so as to reduce the working time of the oil pump and reduce the energy consumption of the oil pump.

[0008] Furthermore, the buffer mechanism includes a connecting sleeve installed at the bottom of the buffer tube, a pressure plate sliding inside the buffer tube, a connecting inner sleeve installed inside the connecting sleeve, a plurality of first through holes on the side of the connecting inner sleeve, a plurality of second through holes on the bottom surface of the connecting inner sleeve, damping oil filling the interior of both the connecting sleeve and the connecting inner sleeve, a connecting sliding hole at the center of the connecting sleeve and the connecting inner sleeve, a stopper rod sliding in the sliding hole installed at the center of one side of the pressure plate, a piston sliding in the connecting inner sleeve installed at the free end of the stopper rod, and a spring connecting the pressure plate and the connecting sleeve.

[0009] The beneficial effect of adopting the above-mentioned further solution is that after the oil pump starts, it pumps hydraulic oil into the buffer tube. The pressure plate moves under the pressure of the hydraulic oil and compresses the spring. At the same time, the piston moves within the connecting inner sleeve through the stopcock and squeezes the damping oil. The damping oil flows into the connecting outer sleeve through the second through hole, while the damping oil in the connecting outer sleeve flows into the connecting inner sleeve through the first through hole. This completes the step of absorbing the pressure of the hydraulic oil. After the oil pump is turned off, the spring returns to its original position, causing the pressure plate to push the hydraulic oil. At the same time, the piston moves within the connecting inner sleeve through the stopcock and squeezes the damping oil. The damping oil flows into the connecting outer sleeve through the first through hole, while the damping oil in the connecting outer sleeve flows into the connecting inner sleeve through the second through hole. During this process, the damping oil will generate resistance to the moving piston, thereby reducing the speed of the pressure plate's return and allowing the pressure to be released slowly. This increases the time for the pressure plate to release pressure on the hydraulic oil, thereby increasing the time for the hydraulic oil to act on the piston rod of the cylinder and increasing the time for the piston rod of the cylinder to remain in its original position.

[0010] Specifically, the spring model is selected based on the oil pump and oil cylinder models to ensure that the spring force is greater than the maximum pressure required for the piston rod of the oil cylinder to remain in its original position.

[0011] The beneficial effect of adopting the above-mentioned further solution is that after the oil pump stops, the buffer mechanism releases the pressure. At the same time, the piston rod of the oil cylinder will also generate pressure on the hydraulic oil. This pressure will act on the pressure plate. By limiting the elastic force of the spring, the pressure exerted on the pressure plate when the spring returns to its original position is greater than the maximum pressure of the hydraulic oil on the pressure plate, so as to ensure that the pressure plate can return to its original position under the action of the spring, thereby allowing the buffer mechanism to release the pressure.

[0012] Furthermore, a sealing bellows is connected between the piston and the inner wall of the connecting inner sleeve, and the piston rod is located inside the sealing bellows.

[0013] The advantage of adopting the above-mentioned further solution is that by covering the sliding hole with a sealed bellows, the damping oil is prevented from flowing out through the gap between the sliding hole and the plug rod.

[0014] Furthermore, the side of the piston and the inner wall of the connecting inner sleeve are completely fitted together, and the side of the piston rod and the wall of the sliding hole are completely fitted together.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by limiting the inner diameter of the piston, the inner diameter of the connecting sleeve, the diameter of the piston rod, and the diameter of the sliding hole, it is ensured that the piston rod can move vertically.

[0016] Furthermore, the side of the connecting jacket and the inner wall of the buffer tube are completely fitted together, and the side of the pressure plate and the inner wall of the buffer tube are completely fitted together.

[0017] Specifically, a sealing ring is also provided on the outside of the pressure plate.

[0018] The beneficial effect of adopting the above-mentioned further solution is that by limiting the outer diameter of the connecting sleeve, the inner diameter of the buffer tube, and the diameter of the pressure plate, it can be ensured that hydraulic oil will not flow into the gap between the pressure plate and the buffer tube.

[0019] Furthermore, the inner diameter of the first output tube is larger than the inner diameter of the second output tube, and a tapered tube is provided at the connection between the first output tube and the second output tube.

[0020] The beneficial effect of adopting the above-mentioned further solution is that by limiting the inner diameter of the first output pipe and the second output pipe, the pressure of the hydraulic oil on the piston rod of the cylinder can be increased.

[0021] Furthermore, the input pipe, the first output pipe, the second output pipe, the tapered pipe, and the buffer pipe are all high-pressure resistant pipes.

[0022] The beneficial effect of adopting the above-mentioned further solution is that it ensures that the input tube, the first output tube, the second output tube, the tapered tube, and the buffer tube can withstand greater pressure.

[0023] Compared with the prior art, the beneficial effects of this utility model are: the energy-saving hydraulic supply device can absorb the pressure of hydraulic oil and slowly release the oil pressure after the oil pump stops, thereby maintaining the pressure of hydraulic oil on the piston rod of the oil cylinder for a certain period of time after the oil pump stops, so as to reduce the working time of the oil pump and reduce the energy consumption of the oil pump. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the energy-saving hydraulic supply device disclosed in the embodiments of this utility model;

[0025] Figure 2 This is a first cross-sectional structural schematic diagram of the energy-saving hydraulic supply device disclosed in an embodiment of the present utility model;

[0026] Figure 3This is an exploded structural diagram of the energy-saving hydraulic supply device disclosed in an embodiment of this utility model;

[0027] Figure 4 This is a second cross-sectional structural diagram of the energy-saving hydraulic supply device disclosed in an embodiment of this utility model.

[0028] In the diagram: 100, Input component; 1001, Input pipe; 1002, Check valve; 200, Output component; 2001, First output pipe; 2002, Second output pipe; 300, Input component; 3001, Buffer pipe; 3002, Connecting outer sleeve; 3003, Connecting inner sleeve; 3004, First through hole; 3005, Second through hole; 3006, Sealing bellows; 3007, Piston; 3008, Plug rod; 3009, Spring; 3010, Pressure plate; 400, Connecting component. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an energy-saving hydraulic supply device, including an input component 100, an output component 200, a buffer component 300, and a connecting component 400. The input component 100 includes an input pipe 1001 and a one-way valve 1002, with the one-way valve 1002 installed at one end of the input pipe 1001. The output component 200 includes a first output pipe 2001 and a second output pipe 2002, which are connected together. The buffer component 300 includes a buffer pipe 3001 and a buffer mechanism, with the buffer mechanism installed inside the buffer pipe 3001. Component 400 is a three-way valve. The three ports of the three-way valve are respectively connected to the other end of the input pipe 1001, the free end of the first output pipe 2001, and the free end of the buffer pipe 3001. The buffer mechanism absorbs and releases oil pressure. The buffer mechanism can achieve the purpose of absorbing the pressure of hydraulic oil. When the oil pump is working, the buffer mechanism does not release pressure to the outside under the action of oil pressure. After the oil pump stops, the oil pressure is slowly released, thereby maintaining the pressure of hydraulic oil on the piston rod of the oil cylinder for a certain period of time after the oil pump stops, so as to reduce the working time of the oil pump and reduce the energy consumption of the oil pump.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an energy-saving hydraulic supply device, the buffer mechanism including a connecting sleeve 3002 installed at the bottom of the buffer tube 3001, a pressure plate 3010 sliding inside the buffer tube 3001, a connecting inner sleeve 3003 installed inside the connecting sleeve 3002, a plurality of first through holes 3004 opened on the side of the connecting inner sleeve 3003, a plurality of second through holes 3005 opened on the bottom surface of the connecting inner sleeve 3003, and the interiors of the connecting sleeve 3002 and the connecting inner sleeve 3003 are filled with damping oil. A connecting sliding hole is formed at the center of the outer sleeve 3002 and the inner sleeve 3003. A stopper rod 3008 is installed at the center of one side of the pressure plate 3010, sliding within the sliding hole. A piston 3007 is installed at the free end of the stopper rod 3008, sliding within the inner sleeve 3003. A spring 3009 connects the pressure plate 3010 and the outer sleeve 3002. After the oil pump starts, hydraulic oil is pumped into the buffer pipe 3001. The pressure plate 3010 moves under the pressure of the hydraulic oil, compressing the spring 3009 and simultaneously passing through the stopper rod 3008. 08 causes piston 3007 to move within connecting inner sleeve 3003, compressing damping oil. This damping oil flows through second through hole 3005 into connecting outer sleeve 3002, while the damping oil in connecting outer sleeve 3002 flows through first through hole 3004 into connecting inner sleeve 3003. This completes the step of absorbing hydraulic oil pressure. After the oil pump is shut off, spring 3009 returns to its original position, causing pressure plate 3010 to push hydraulic oil. Simultaneously, piston 3007 moves within connecting inner sleeve 3003 via piston rod 3008, compressing the damping oil. The damping oil flows into the connecting sleeve 3002 through the first through hole 3004, while the damping oil in the connecting sleeve 3002 flows into the connecting inner sleeve 3003 through the second through hole 3005. During this process, the damping oil will generate resistance to the moving piston 3007, thereby reducing the reset speed of the pressure plate 3010 and allowing the pressure to be released slowly. This increases the time for the pressure plate 3010 to release pressure on the hydraulic oil, thereby increasing the time for the hydraulic oil to act on the piston rod of the cylinder and increasing the time for the piston rod of the cylinder to remain in the original position.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an energy-saving hydraulic supply device. The model of spring 3009 is selected according to the model of oil pump and oil cylinder to ensure that the elastic force of spring 3009 is greater than the maximum pressure required for the piston rod of oil cylinder to remain in the original position. After the oil pump stops, the buffer mechanism releases the pressure. At the same time, the piston rod of oil cylinder will also generate pressure on hydraulic oil. This pressure will act on pressure plate 3010. By limiting the elastic force of spring 3009, the pressure exerted by spring 3009 on pressure plate 3010 when spring 3009 resets is greater than the maximum pressure of hydraulic oil on pressure plate 3010, so as to ensure that pressure plate 3010 can reset under the action of spring 3009, thereby allowing the buffer mechanism to release the pressure.

[0035] Specifically, the working principle of this energy-saving hydraulic supply device is as follows: During use, the second output pipe 2002 is connected to the oil inlet of the cylinder, the free end of the one-way valve 1002 is connected to the oil pump, and the oil pump is connected to the oil tank. The one-way valve 1002 prevents the hydraulic oil from flowing back, ensuring that the hydraulic oil acts on the piston rod and pressure plate 3010 of the cylinder. After the oil pump starts, it pumps the hydraulic oil into the buffer pipe 3001 and the cylinder. The portion of the piston rod outside the cylinder extends, and the pressure plate 3010 moves under the pressure of the hydraulic oil, compressing the spring 3009. Simultaneously, the piston rod... 3008 causes piston 3007 to move within connecting inner sleeve 3003 and compress damping oil, causing the damping oil to flow into connecting outer sleeve 3002 through second through hole 3005. Simultaneously, the damping oil in connecting outer sleeve 3002 flows into connecting inner sleeve 3003 through first through hole 3004, thus completing the step of absorbing hydraulic oil pressure. After the oil pump is turned off, spring 3009 returns to its original position, causing pressure plate 3010 to push hydraulic oil. The hydraulic oil then acts on the piston rod of the oil cylinder, ensuring that the piston rod of the oil cylinder is in the extended position. When the pressure is almost completely released, the oil pump is restarted.

Claims

1. An energy-saving hydraulic supply device, characterized in that, The device includes an input component (100), an output component (200), a buffer component (300), and a connector (400). The input component (100) includes an input pipe (1001) and a one-way valve (1002). The one-way valve (1002) is installed at one end of the input pipe (1001). The output component (200) includes a first output pipe (2001) and a second output pipe (2002), which are connected to each other. The buffer component (300) includes a buffer pipe (3001) and a buffer mechanism. The buffer mechanism is installed inside the buffer pipe (3001). The connector (400) is a three-way valve. The three ports of the three-way valve are respectively connected to the other end of the input pipe (1001), the free end of the first output pipe (2001), and the free end of the buffer pipe (3001). The buffer mechanism absorbs and releases oil pressure.

2. The energy-saving hydraulic supply device according to claim 1, characterized in that, The buffer mechanism includes a connecting sleeve (3002) installed at the bottom of the buffer tube (3001) and a pressure plate (3010) sliding inside the buffer tube (3001). A connecting inner sleeve (3003) is installed inside the connecting sleeve (3002). The side of the connecting inner sleeve (3003) has several first through holes (3004), and the bottom surface of the connecting inner sleeve (3003) has several second through holes (3005). The connecting sleeve (3002) and the connecting inner sleeve... The interior of (3003) is filled with damping oil. The connecting outer sleeve (3002) and the connecting inner sleeve (3003) have a connecting sliding hole at their center. A plug rod (3008) that slides in the sliding hole is installed at the center of one side of the pressure plate (3010). A piston (3007) that slides in the connecting inner sleeve (3003) is installed at the free end of the plug rod (3008). A spring (3009) is connected between the pressure plate (3010) and the connecting outer sleeve (3002).

3. The energy-saving hydraulic supply device according to claim 2, characterized in that, A sealing bellows (3006) is connected between the inner wall of the piston (3007) and the inner sleeve (3003), and the piston rod (3008) is located inside the sealing bellows (3006).

4. The energy-saving hydraulic supply device according to claim 3, characterized in that, The side of the piston (3007) and the inner wall of the connecting inner sleeve (3003) are completely in contact, and the side of the piston rod (3008) and the wall of the sliding hole are completely in contact.

5. The energy-saving hydraulic supply device according to claim 4, characterized in that, The side of the connecting jacket (3002) and the inner wall of the buffer tube (3001) are completely fitted together, and the side of the pressure plate (3010) and the inner wall of the buffer tube (3001) are completely fitted together.

6. The energy-saving hydraulic supply device according to claim 1, characterized in that, The inner diameter of the first output tube (2001) is larger than the inner diameter of the second output tube (2002), and a tapered tube is provided at the connection between the first output tube (2001) and the second output tube (2002).

7. The energy-saving hydraulic supply device according to claim 6, characterized in that, The input pipe (1001), the first output pipe (2001), the second output pipe (2002), the tapered pipe, and the buffer pipe (3001) are all high-pressure resistant pipes.

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