Energy recovery micro gear pump

Abstract

The utility model discloses energy recovery type miniature gear pump, it includes the casing, the casing side surface is equipped with infusion port, the infusion port is connected with infusion pipe, the casing is equipped with the liquid outlet away from infusion port one end, the liquid outlet is connected with liquid outlet pipe, the transmission roller rotationally connected with in the casing, the transmission roller side surface is fixedly connected with the baffle, the transmission roller end is provided with the generator, the upper pivot, the upper pivot side surface is fixedly connected with the upper gear, the upper gear side surface is engaged with the lower gear, the upper pivot side surface rotationally connected with the lift ring, the lift ring upper surface is fixedly connected with the slide post, the lift ring upper surface is fixedly connected with the spring. Through the cooperation of the upper pivot, the lift ring, the spring and the slide post, the upper pivot can be pressed down, the upper gear and the lower gear are closely engaged, the gear gap is reduced, the infusion accuracy of the device is ensured, and the device can reduce the tremor and keep the operation accuracy.

Description

Technical Field

[0001] This utility model relates to the field of gear pump technology, and in particular to an energy recovery micro gear pump. Background Technology

[0002] To ensure more stable liquid output, existing micro gear pumps incorporate a reduction gearbox to enhance liquid output stability. However, this also amplifies the impact of backlash between multiple gears on liquid leakage, affecting the liquid delivery effect. For example, a reduction gearbox for a micro gear pump disclosed in Chinese Patent Application No. CN202121864807.1 uses a drive motor, a first gear, a second gear, a third gear, an upper gear, and a lower gear to achieve more stable liquid flow output through gear reduction. However, this also amplifies the impact of backlash between multiple gears on liquid leakage, affecting the liquid delivery effect. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an energy recovery micro gear pump. When discharging liquid, the liquid can push the baffle on the side surface of the transmission roller above the outlet to rotate, thereby driving the transmission roller to rotate and enabling the generator to generate electricity, thus completing the energy recovery. A lifting ring is rotatably provided at the end of the upper rotating shaft. Through the cooperation of spring and slide column, the upper rotating shaft can be kept to rotate normally, and the upper rotating shaft can be pressed down to achieve a tight fit between the upper gear and the lower gear, so that they can mesh stably, reduce the tooth gap between the upper gear and the lower gear, ensure the accuracy of liquid delivery of the device, and reduce device vibration, thus maintaining the operating accuracy of the device.

[0004] This utility model also provides a micro gear pump with the above-mentioned energy recovery type, comprising: a housing, an inlet provided on the side surface of the housing, the inlet being connected to an inlet pipe, an outlet provided at the end of the housing away from the inlet, the outlet being connected to an outlet pipe, a drive roller rotatably connected inside the housing, a baffle fixedly connected to the side surface of the drive roller, and a generator provided at the end of the drive roller; an upper rotating shaft, an upper gear fixedly connected to the side surface of the upper rotating shaft, a lower gear meshing with the side surface of the upper gear, a lifting ring rotatably connected to the side surface of the upper rotating shaft, a sliding column fixedly connected to the upper surface of the lifting ring, and a spring fixedly connected to the upper surface of the lifting ring. Through the above components, when the liquid is discharged, the liquid can push the baffle on the side surface of the transmission roller above the outlet to rotate, which drives the transmission roller to rotate so that it can generate electricity and complete the energy recovery. A lifting ring is rotatably set at the end of the upper rotating shaft. Through the cooperation of spring and slide column, the upper rotating shaft can be kept to rotate normally and can also press the upper rotating shaft downward to achieve a tight fit between the upper gear and the lower gear, so that they can mesh stably, reduce the tooth gap between the upper gear and the lower gear, ensure the accuracy of liquid delivery of the device, and reduce device vibration to maintain the operating accuracy of the device.

[0005] According to the energy recovery micro gear pump of this utility model, a support plate is fixedly connected to the lower surface of the housing, and a cavity is provided at the end of the housing. These components provide stable support for the device, and the cavity allows for the rotation of the drive roller and the baffle.

[0006] According to the energy recovery micro gear pump of this invention, the cavity is located directly above the liquid outlet, and the drive roller and baffle are located inside the cavity. These components facilitate the conversion of the pressure of the discharged liquid into rotational power for the baffle and drive roller.

[0007] According to the energy recovery micro gear pump of this utility model, the baffles are several and arranged in an array on the side surface of the transmission roller, and the generator is fixedly connected to the front of the housing. These components stably convert water pressure into rotational power for the transmission roller, providing support for the generator.

[0008] According to the energy recovery micro gear pump of this utility model, a lower rotating shaft is fixedly connected to the inner wall of the lower gear, and the end of the lower rotating shaft is rotatably connected to the inner wall of the housing. These components enable the lower rotating shaft to rotate stably, thus providing support for the rotation of the lower gear.

[0009] According to the energy recovery micro gear pump of this utility model, a motor is fixedly connected to the front of the housing, and the output end of the motor is fixedly connected to the end of the lower rotating shaft. These components provide a power source for the rotation of the upper rotating shaft.

[0010] According to the energy recovery micro gear pump of this utility model, the end of the upper rotating shaft is rotatably connected to the inner wall of the housing, and the upper gear and lower gear are disposed inside the housing. These components provide support for the rotation of the upper and lower rotating shafts, and the housing protects the upper and lower gears, ensuring stable operation.

[0011] According to the energy recovery micro gear pump of this utility model, the side surface of the lifting ring and the side surface of the sliding column are slidably connected to the inner wall of the housing, and the end of the spring away from the lifting ring is fixedly connected to the inner wall of the housing. These components enable the lifting ring and the sliding column to slide normally up and down, providing support for the spring.

[0012] According to the energy recovery micro gear pump of this utility model, there are two lifting rings, sliding columns and springs located at both ends of the upper rotating shaft, so that the lifting rings, sliding columns and springs can stably press the upper rotating shaft downward and reduce tooth backlash.

[0013] Beneficial effects:

[0014] Compared with the prior art, this utility model, when discharging liquid, can push the baffle on the side surface of the transmission roller above the outlet to rotate, thereby driving the transmission roller to rotate and enabling the generator to generate electricity, thus completing the energy recovery. A lifting ring is rotatably provided at the end of the upper rotating shaft, which can keep the upper rotating shaft rotating normally through the cooperation of spring and slide column, and can also press the upper rotating shaft downward to achieve a tight fit between the upper gear and the lower gear, so that they can mesh stably, reduce the tooth gap between the upper gear and the lower gear, ensure the accuracy of liquid delivery of the device, and reduce device vibration, thus maintaining the operating accuracy of the device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of the energy recovery micro gear pump of this utility model;

[0017] Figure 2 This is a front cross-sectional view of the energy recovery micro gear pump of this utility model;

[0018] Figure 3 This is a side cross-sectional view of the energy recovery micro gear pump of this utility model;

[0019] Figure 4 This utility model relates to an energy recovery type micro gear pump. Figure 3 Structural diagram at point A in the middle.

[0020] Legend:

[0021] 1. Shell; 2. Infusion port; 3. Infusion tube; 4. Outlet; 5. Outlet tube; 6. Drive roller; 7. Baffle; 8. Generator; 9. Upper shaft; 10. Upper gear; 11. Lower gear; 12. Lifting ring; 13. Sliding column; 14. Spring; 15. Support plate; 16. Cavity; 17. Motor; 18. Lower shaft. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4The present invention relates to an energy recovery micro gear pump, comprising: a housing 1, a support plate 15 fixedly connected to the lower surface of the housing 1, a cavity 16 opened at the end of the housing 1, an inlet 2 opened on the side surface of the housing 1, the inlet 2 being connected to an inlet pipe 3, an outlet 4 opened at the end of the housing 1 away from the inlet 2, the cavity 16 being located directly above the outlet 4, the outlet 4 being connected to an outlet pipe 5, a transmission roller 6 being rotatably connected inside the housing 1, a baffle 7 being fixedly connected to the side surface of the transmission roller 6, the baffle 7 being several in number and arrayed on the side surface of the transmission roller 6, the transmission roller 6 and the baffle 7 being located inside the cavity 16, a generator 8 being provided at the end of the transmission roller 6, and the generator 8 being fixedly connected to the front of the housing 1.

[0024] Specifically, liquid is injected into cavity 16 through infusion tube 3 and infusion port 2, and the liquid is output through gear pump. When the liquid is discharged in outlet 4, it can impact baffle 7 and drive transmission roller 6 to rotate. Transmission roller 6 can generate electricity through generator 8 at its side end, thus recovering energy and reducing energy waste in the device.

[0025] An upper rotating shaft 9 is fixedly connected to a motor 17 on the front of the housing 1. The output end of the motor 17 is fixedly connected to the end of the upper rotating shaft 9. An upper gear 10 is fixedly connected to the side surface of the upper rotating shaft 9. A lower gear 11 is meshed with the side surface of the upper gear 10. The upper gear 10 and the lower gear 11 are located inside the housing 1. A lower rotating shaft 18 is fixedly connected to the inner wall of the lower gear 11. The end of the lower rotating shaft 18 is rotatably connected to the inner wall of the housing 1. The ends of the upper rotating shaft 9 and the lower rotating shaft 18 are rotatably connected to the inner wall of the housing 1. A lifting ring 12 is rotatably connected to the side surface of the upper rotating shaft 9. A sliding column 13 is fixedly connected to the upper surface of the lifting ring 12. The side surfaces of the lifting ring 12 and the sliding column 13 are slidably connected to the inner wall of the housing 1. A spring 14 is fixedly connected to the upper surface of the lifting ring 12. The end of the spring 14 away from the lifting ring 12 is fixedly connected to the inner wall of the housing 1. There are two lifting rings 12, sliding columns 13, and springs 14, which are located at both ends of the upper rotating shaft 9.

[0026] Specifically, the starter motor 17 can rotate the upper shaft 9, which drives the upper gear 10 to rotate. The upper gear 10 drives the lower gear 11, which is meshed with it, to rotate through the lower shaft 18. When the gears disengage, the volume increases, forming a low pressure and drawing in fluid. When they re-engage, the volume decreases, squeezing the fluid out and forming a high pressure, thus completing the liquid delivery. Inside the housing 1, a spring 14 can push the lifting ring 12 to cooperate with the sliding column 13 to press down on the upper shaft 9, so that the upper gear 10 and the lower gear 11 are tightly meshed without affecting the rotation of the upper gear 10. This reduces the tooth gap between the upper gear 10 and the lower gear 11, ensuring the accuracy of the device's liquid delivery, reducing device vibration, and maintaining the device's operational precision.

[0027] Working principle: During the use of the device, liquid is injected into the cavity 16 through the infusion tube 3 and the infusion port 2. The starting motor 17 can rotate the upper shaft 9, which drives the upper gear 10 to rotate. The upper gear 10 drives the lower gear 11, which is meshed with it, to rotate through the lower shaft 18. When the gears disengage, the volume increases, forming a low pressure and drawing in the fluid. When they re-engage, the volume decreases, squeezing the fluid out and forming a high pressure, thus completing the liquid delivery. A spring 14 is installed inside the housing 1, which can push the lifting ring 12 to press down on the upper shaft 9 in conjunction with the sliding column 13, so that the upper gear 10 and the lower gear 11 are tightly meshed without affecting the rotation of the upper gear 10. This reduces the tooth gap between the upper gear 10 and the lower gear 11, ensuring the accuracy of the device's liquid delivery, reducing device vibration, and maintaining the device's operational precision. When the liquid is discharged from the outlet 4, it can impact the baffle 7, driving the transmission roller 6 to rotate. The transmission roller 6 can generate electricity through the generator 8 on its side, completing the energy recovery and reducing energy waste in the device.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An energy recovery type micro gear pump, characterized in that, include: The housing (1) has an infusion port (2) on its side surface, which is connected to an infusion tube (3). The housing (1) has an outlet (4) at one end away from the infusion port (2), which is connected to an outlet tube (5). A drive roller (6) is rotatably connected inside the housing (1). A baffle (7) is fixedly connected to the side surface of the drive roller (6). A generator (8) is provided at the end of the drive roller (6). An upper rotating shaft (9) is fixedly connected to an upper gear (10) on its side surface. A lower gear (11) is meshed with the side surface of the upper gear (10). A lifting ring (12) is rotatably connected to the side surface of the upper rotating shaft (9). A sliding column (13) is fixedly connected to the upper surface of the lifting ring (12). A spring (14) is fixedly connected to the upper surface of the lifting ring (12).

2. The energy recovery micro gear pump according to claim 1, characterized in that, A support plate (15) is fixedly connected to the lower surface of the housing (1), and a cavity (16) is opened at the end of the housing (1).

3. The energy recovery micro gear pump according to claim 2, characterized in that, The cavity (16) is located directly above the liquid outlet (4), and the transmission roller (6) and the baffle (7) are located inside the cavity (16).

4. The energy recovery micro gear pump according to claim 1, characterized in that, The baffle (7) has several and is arranged in an array on the side surface of the transmission roller (6), and the generator (8) is fixedly connected to the front of the housing (1).

5. The energy recovery micro gear pump according to claim 1, characterized in that, The lower gear (11) has a lower rotating shaft (18) fixedly connected to its inner sidewall, and the end of the lower rotating shaft (18) is rotatably connected to the inner sidewall of the housing (1).

6. The energy recovery micro gear pump according to claim 1, characterized in that, A motor (17) is fixedly connected to the front of the housing (1), and the output end of the motor (17) is fixedly connected to the end of the lower rotating shaft (18).

7. The energy recovery micro gear pump according to claim 1, characterized in that, The end of the upper rotating shaft (9) is rotatably connected to the inner wall of the housing (1), and the upper gear (10) and the lower gear (11) are located inside the housing (1).

8. The energy recovery micro gear pump according to claim 1, characterized in that, The side surface of the lifting ring (12) and the side surface of the sliding column (13) are slidably connected to the inner wall of the housing (1), and the end of the spring (14) away from the lifting ring (12) is fixedly connected to the inner wall of the housing (1).

9. The energy recovery micro gear pump according to claim 1, characterized in that, The lifting ring (12), sliding column (13) and spring (14) are two in number and located at both ends of the upper rotating shaft (9).

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