High-pressure electronic pump with noise reduction function

Abstract

The high-pressure electronic pump with the noise reduction function comprises a motor, a noise reduction cover, heat dissipation ribs and a high-pressure gear pump, the motor is fixedly arranged at one end of the high-pressure gear pump and used for driving the high-pressure gear pump to rotate, the noise reduction cover is fixedly arranged on the outer wall of the motor, the heat dissipation ribs are fixedly arranged on the outer wall of the noise reduction cover, and the high-pressure gear pump is arranged in the noise reduction cover. An anti-falling groove is formed in the outer wall of the motor, and an anti-falling protrusion matched with the anti-falling groove is arranged on the inner wall of the silencing cover. The noise reduction cover is arranged on the outer wall of the motor, the noise reduction effect can be effectively achieved, meanwhile, the noise reduction cover is better fixed to the motor through matched use of the anti-disengaging grooves, the anti-disengaging protrusions, the anti-rotation holes and the anti-rotation pins, and therefore noise is effectively prevented from being generated between the motor and the noise reduction cover.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage electronic pumps, in particular to a high-voltage electronic pump with a silencing function. Background Art

[0002] When the high-voltage electronic pump is running, its motor will generate noise. In some noise-sensitive application fields, high-voltage electronic pumps cannot accept excessive noise, such as military industry, medical equipment, and electric vehicles. Therefore, the high-voltage electronic pump needs to reduce the noise emitted by the motor. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a high-voltage electronic pump with a silencing function.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A high-voltage electronic pump with a silencing function comprises a motor, a silencer cover, a heat dissipation rib and a high-voltage gear pump, wherein the motor is fixedly arranged on one end of the high-voltage gear pump and is used to drive the high-voltage gear pump to rotate, the silencer cover is fixedly arranged on the outer wall of the motor, the heat dissipation rib is fixedly arranged on the outer wall of the silencer cover, an anti-slip groove is arranged on the outer wall of the motor, and an anti-slip protrusion cooperating with the anti-slip groove is arranged on the inner wall of the silencer cover.

[0006] Furthermore, an anti-rotation hole is fixedly provided on the outer wall of the motor, and an anti-rotation pin cooperating with the anti-rotation hole is provided on the inner wall of the muffler cover.

[0007] Furthermore, the motor is fixedly arranged on one side surface of the connecting plate, the high-pressure gear pump is fixedly arranged on the other side surface of the connecting plate, and the output shaft of the motor passes through the connecting plate and is connected to the high-pressure gear pump.

[0008] Furthermore, the high-pressure gear pump includes a pump seat, a pump body, a pump cover, a lower floating sleeve, an upper floating sleeve and a gear assembly. The pump seat is fixedly arranged on the connecting plate, the pump body is sealed and fixedly connected between the pump seat and the pump cover, the gear assembly is arranged in a pump cavity on the pump body, the lower floating sleeve is sleeved on one end of the gear assembly and cooperates with the pump seat, the upper floating sleeve is sleeved on the other end of the gear assembly and cooperates with the pump cover, the output shaft of the motor passes through the pump seat and is connected to the gear assembly, the output shaft of the motor cooperates with the pump seat, and penetrating oil inlet holes and oil outlet holes are arranged on the side walls on both sides of the pump cavity.

[0009] Furthermore, the gear assembly includes a main gear, a driven gear and a rotating shaft, the main gear and the driven gear are respectively fixed on the middle parts of the two rotating shafts, the main gear is meshed with the driven gear, the rotating shaft on the main gear is connected to the output shaft of the motor, the lower floating sleeve is sleeved on one end of the rotating shaft, and the upper floating sleeve is sleeved on the other end of the rotating shaft.

[0010] Furthermore, a spring is arranged on the end of the upper floating sleeve, and a blind hole cooperating with the spring is arranged on the pump cover.

[0011] Furthermore, a first sealing ring is provided between the pump seat and the pump body, and a second sealing ring is provided between the pump body and the pump cover.

[0012] Furthermore, an oil seal is provided between the output shaft of the motor and the pump seat.

[0013] Furthermore, a bearing is arranged on the output shaft of the motor, and the bearing is arranged between the pump seat and the connecting plate.

[0014] Furthermore, the rotating shaft is connected to the output shaft of the motor via a coupling.

[0015] The beneficial effects of the utility model are:

[0016] 1) In the present technology, a silencer cover is arranged on the outer wall of the motor, which can effectively achieve the noise reduction effect. At the same time, the silencer cover is better fixed to the motor through the coordinated use of anti-slip grooves, anti-slip protrusions, anti-rotation holes and anti-rotation pins, thereby effectively preventing the noise from being generated between the motor and the silencer cover.

[0017] 2) In the present technology, a first sealing ring, a second sealing ring and an oil seal are provided in the high-pressure gear pump, which can effectively ensure the sealing performance of the high-pressure gear pump and prevent leakage during operation.

[0018] 3) In the present technology, the provision of a spring, a lower floating sleeve and an upper floating sleeve can effectively limit the position of the gear assembly and prevent the gear assembly from having a large axial displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional connection structure of the high-voltage electronic pump;

[0020] Figure 2 This is a cross-sectional connection structure of the high-voltage electronic pump;

[0021] Figure 3 It is the connection structure diagram between the heat dissipation rib and the silencer cover;

[0022] Figure 4This is the connection structure diagram of the anti-slip slot on the motor;

[0023] In the figure, 1-motor, 2-muffler, 3-heat dissipation rib, 4-anti-slip groove, 5-anti-slip protrusion, 6-anti-rotation hole, 7-anti-rotation pin, 8-connecting plate, 9-pump seat, 10-pump body, 11-pump cover, 12-lower floating sleeve, 13-upper floating sleeve, 14-pump chamber, 15-oil inlet hole, 16-oil outlet hole, 17-main gear, 18-driven gear, 19-rotating shaft, 20-spring, 21-first sealing ring, 22-second sealing ring, 23-oil seal, 24-bearing, 25-coupling. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments to clearly and completely describe the technical solution 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] A high-voltage electronic pump with a silencing function comprises a motor 1, a silencer cover 2, heat dissipation ribs 3 and a high-pressure gear pump. The motor 1 is fixedly arranged on one end of the high-pressure gear pump and is used to drive the high-pressure gear pump to rotate. The silencer cover 2 is fixedly arranged on the outer wall of the motor 1. The heat dissipation ribs 3 are fixedly arranged on the outer wall of the silencer cover 2. An anti-slip groove 4 is arranged on the outer wall of the motor 1. An anti-slip protrusion 5 cooperating with the anti-slip groove 4 is arranged on the inner wall of the silencer cover 2. Among them, the silencer cover 2 is an aluminum alloy silencer cover. The silencer cover 2 and the motor 1 housing can be cast and fixed together, or they can be fixed together by interference fit, or they can be fixed together by bolts. After the silencer cover 2 is arranged, the noise generated by the motor 1 can be effectively eliminated. The heat dissipation ribs 3 can effectively dissipate the heat of the motor 1. The heat generated by the motor 1 is transferred to the silencer cover 2, and the silencer cover 2 is transferred to the heat dissipation ribs 3 for heat dissipation. The heat dissipation ribs 3 can be arranged on the silencer cover 2 perpendicular to the length direction of the silencer cover 2 (such as Figure 1 As shown), the heat dissipation ribs 3 can be arranged on the muffler cover 2 parallel to the length direction of the muffler cover 2 (as shown Figure 3 shown).

[0027] In some embodiments, an anti-rotation hole 6 is fixedly provided on the outer wall of the motor 1, and an anti-rotation pin 7 cooperating with the anti-rotation hole 6 is provided on the inner wall of the muffler 2. The anti-rotation hole 6 and the anti-rotation pin 7 are provided to prevent the muffler 2 from rotating on the outer wall of the motor 1, which may generate noise when rotating, so the anti-rotation pin 7 and the anti-rotation hole 6 cooperate to effectively eliminate the noise.

[0028] In some embodiments, the motor 1 is fixedly arranged on one side of the connecting plate 8, the high-pressure gear pump is fixedly arranged on the other side of the connecting plate 8, and the output shaft of the motor 1 is connected to the high-pressure gear pump after passing through the connecting plate 8. The connecting plate 8 is fixed to the motor 1 by bolts, and the high-pressure gear pump is fixed to the connecting plate 8 by bolts, and the connecting plate 8 plays a connecting role.

[0029] In some embodiments, the high-pressure gear pump includes a pump seat 9, a pump body 10, a pump cover 11, a lower floating sleeve 12, an upper floating sleeve 13 and a gear assembly. The pump seat 9 is fixedly arranged on the connecting plate 8, and the pump body 10 is sealed and fixedly connected between the pump seat 9 and the pump cover 11. The gear assembly is arranged in a pump chamber 14 on the pump body 10. The lower floating sleeve 12 is sleeved on one end of the gear assembly and cooperates with the pump seat 9. The upper floating sleeve 13 is sleeved on the other end of the gear assembly and cooperates with the pump cover 11. The output shaft of the motor 1 passes through the pump seat 9 and is connected to the gear assembly. The output shaft of the motor 1 cooperates with the pump seat 9. The side walls on both sides of the pump chamber 14 are provided with penetrating oil inlet holes 15 and oil outlet holes 16. The gear assembly includes a main gear 17, a driven gear 18 and a rotating shaft 19. The main gear 17 and the driven gear 18 are respectively fixedly arranged on the middle of the two rotating shafts 19. The main gear 17 is meshed with the driven gear 18. The rotating shaft 19 on the main gear 17 is connected to the output shaft of the motor 1. The lower floating sleeve 12 is sleeved on one end of the rotating shaft 19, and the upper floating sleeve 13 is sleeved on the other end of the rotating shaft 19. A spring 20 is arranged on the end of the upper floating sleeve 13, and a blind hole matching the spring 20 is arranged on the pump cover 11. Among them, the pump seat 9, the pump body 10 and the pump cover 11 are fixedly connected to the connecting plate 8 as a whole by bolts. A pump chamber 14 is provided in the pump body 10. The pump chamber 14 is used to install the gear assembly. Under the cooperation of the gear assembly and the pump chamber 14, the high-pressure output of the liquid is realized. The output shaft of the motor 1 drives the rotating shaft 19 on the main gear 17 to rotate through the coupling 25. The rotation of the main gear 17 drives the driven gear 18 to rotate. The liquid enters from the oil inlet hole 15 and is discharged from the oil outlet hole 16 after being pressurized by the gear assembly. The lower floating sleeve 12 and the upper floating sleeve 13 are respectively used to fix the two ends of the rotating shaft 19, so that the main gear 17 and the driven gear 18 can rotate conveniently. The spring 20 is provided to press the upper floating sleeve 13 to prevent the main gear 17 and the driven gear 18 from moving along the axis of the rotating shaft 19.

[0030] In some embodiments, a first sealing ring 21 is provided between the pump seat 9 and the pump body 10, and a second sealing ring 22 is provided between the pump body 10 and the pump cover 11. An oil seal 23 is provided between the output shaft of the motor 1 and the pump seat 9. Among them, the first sealing ring 21, the second sealing ring 22 and the oil seal 23 are all existing technologies. The first sealing ring 21 seals the connection between the pump seat 9 and the pump body 10, the second sealing ring 22 seals the connection between the pump body 10 and the pump cover 11, and the oil seal 23 seals the matching part between the output shaft of the motor 1 and the pump seat 9, so as to ensure that the high-pressure gear pump will not leak during operation.

[0031] In some embodiments, a bearing 24 is provided on the output shaft of the motor 1, and the bearing 24 is provided between the pump seat 9 and the connecting plate 8. The rotating shaft 19 is connected to the output shaft of the motor 1 through a coupling 25. The bearing 24 and the coupling 25 are both prior art, the bearing 24 better ensures the rotation of the output shaft of the motor 1, and the coupling 25 reduces the coaxiality installation requirements between the output shaft of the motor 1 and the rotating shaft 19.

[0032] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "hinge" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high-voltage electronic pump with a silencing function, characterized in that: The invention comprises a motor (1), a silencer cover (2), a heat dissipation rib (3) and a high-pressure gear pump, wherein the motor (1) is fixedly arranged on one end of the high-pressure gear pump and is used to drive the high-pressure gear pump to rotate, the silencer cover (2) is fixedly arranged on the outer wall of the motor (1), the heat dissipation rib (3) is fixedly arranged on the outer wall of the silencer cover (2), an anti-slip groove (4) is arranged on the outer wall of the motor (1), and an anti-slip protrusion (5) cooperating with the anti-slip groove (4) is arranged on the inner wall of the silencer cover (2).

2. A high-voltage electronic pump with a silencing function according to claim 1, characterized in that: An anti-rotation hole (6) is fixedly provided on the outer wall of the motor (1), and an anti-rotation pin (7) cooperating with the anti-rotation hole (6) is provided on the inner wall of the silencer cover (2).

3. A high-voltage electronic pump with a silencing function according to claim 1 or 2, characterized in that: The motor (1) is fixedly arranged on one side of the connecting plate (8), the high-pressure gear pump is fixedly arranged on the other side of the connecting plate (8), and the output shaft of the motor (1) passes through the connecting plate (8) and is connected to the high-pressure gear pump.

4. A high-voltage electronic pump with a silencing function according to claim 3, characterized in that: The high-pressure gear pump comprises a pump seat (9), a pump body (10), a pump cover (11), a lower floating shaft sleeve (12), an upper floating shaft sleeve (13) and a gear assembly. The pump seat (9) is fixedly arranged on the connecting plate (8). The pump body (10) is sealed and fixedly connected between the pump seat (9) and the pump cover (11). The gear assembly is arranged in a pump cavity (14) on the pump body (10). The lower floating shaft sleeve (12) is sleeved on one end of the gear assembly and cooperates with the pump seat (9). The upper floating shaft sleeve (13) is sleeved on the other end of the gear assembly and cooperates with the pump cover (11). The output shaft of the motor (1) passes through the pump seat (9) and is connected to the gear assembly. The output shaft of the motor (1) cooperates with the pump seat (9). The side walls on both sides of the pump cavity (14) are provided with penetrating oil inlet holes (15) and oil outlet holes (16).

5. A high-voltage electronic pump with a silencing function according to claim 4, characterized in that: The gear assembly comprises a main gear (17), a driven gear (18) and a rotating shaft (19); the main gear (17) and the driven gear (18) are respectively fixedly arranged on the middle parts of the two rotating shafts (19); the main gear (17) is meshed with the driven gear (18); the rotating shaft (19) on the main gear (17) is connected to the output shaft of the motor (1); the lower floating sleeve (12) is sleeved on one end of the rotating shaft (19); and the upper floating sleeve (13) is sleeved on the other end of the rotating shaft (19).

6. A high-voltage electronic pump with a silencing function according to claim 4 or 5, characterized in that: A spring (20) is arranged on the end of the upper floating sleeve (13), and a blind hole cooperating with the spring (20) is arranged on the pump cover (11).

7. A high-voltage electronic pump with a silencing function according to claim 4 or 5, characterized in that: A first sealing ring (21) is arranged between the pump seat (9) and the pump body (10), and a second sealing ring (22) is arranged between the pump body (10) and the pump cover (11).

8. A high-voltage electronic pump with a silencing function according to claim 4 or 5, characterized in that: An oil seal (23) is provided between the output shaft of the motor (1) and the pump seat (9).

9. A high-voltage electronic pump with a silencing function according to claim 4 or 5, characterized in that: A bearing (24) is arranged on the output shaft of the motor (1), and the bearing (24) is arranged between the pump seat (9) and the connecting plate (8).

10. The high-voltage electronic pump with a silencing function according to claim 5, characterized in that: The rotating shaft (19) is connected to the output shaft of the motor (1) via a coupling (25).

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