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CN-224214346-U - High-pressure oil pump with noise reduction function

CN224214346UCN 224214346 UCN224214346 UCN 224214346UCN-224214346-U

Abstract

The utility model belongs to the field of high-pressure oil pumps, in particular to a high-pressure oil pump with a noise reduction function, which comprises a base frame and a base seat, wherein the surface of the base seat is fixedly provided with a high-pressure oil pump main body, the base seat is matched with the base frame for use, the inside of the base frame is fixedly provided with a bracket, the surface of the bracket is fixedly provided with a shock pad, the surface of the shock pad is in contact with the bottom of the base seat, the inside of the base frame is rotatably provided with a threaded sleeve, the bottom of the base seat is fixedly connected with a stud, the stud is matched with the threaded sleeve for use, the noise caused by vibration generated by the high-pressure oil pump main body and the base seat can be effectively reduced through the bracket and the shock pad, the threaded sleeve is supported through a fastening mechanism, so that the stud is stabilized in the inside of the threaded sleeve, the conditions such as looseness of the base seat can be effectively avoided, structural collision caused by the looseness of the base seat can be avoided, and the noise generated by vibration can be further reduced.

Inventors

  • YUAN XIAOJUAN

Assignees

  • 富顺安建汽车零部件(东莞)有限公司

Dates

Publication Date
20260508
Application Date
20250625

Claims (8)

  1. 1. The high-pressure oil pump with the noise reduction function is characterized by comprising a base frame (1) and a base (2), wherein a high-pressure oil pump main body (3) is fixedly arranged on the surface of the base (2), the base (2) is matched with the base frame (1), a support (101) is fixedly arranged in the base frame (1), a shock pad (102) is fixedly arranged on the surface of the support (101), the surface of the shock pad (102) is in contact with the bottom of the base (2), a thread bush (5) is rotatably arranged in the base frame (1), a stud (4) is fixedly connected to the bottom of the base (2), the stud (4) is matched with the thread bush (5), and a fastening mechanism (6) is arranged in the base frame (1); The fastening mechanism (6) comprises a movable frame (61) which is slidably connected inside the base frame (1), a plurality of teeth (63) are fixedly arranged on the surface of the movable frame (61), a gear (64) is sleeved on the surface of the threaded sleeve (5), the surface of the gear (64) is meshed with the teeth (63), a spring (62) is arranged inside the base frame (1), one end of the spring (62) is fixedly connected with the inner wall of the base frame (1), and the other end of the spring (62) is fixedly connected with the inner wall of the movable frame (61).
  2. 2. The high-pressure oil pump with the noise reduction function according to claim 1, wherein a positioning sleeve (51) is fixedly arranged in the base frame (1), a first positioning block (52) is fixedly arranged on the surface of the threaded sleeve (5), and the surface of the first positioning block (52) is in sliding connection with an inner cavity of the positioning sleeve (51).
  3. 3. The high-pressure oil pump with the noise reduction function according to claim 1, wherein a positioning frame (53) is fixedly arranged in the base frame (1), a second positioning block (54) is fixedly arranged on the surface of the threaded sleeve (5), and the surface of the second positioning block (54) is in sliding connection with an inner cavity of the positioning frame (53).
  4. 4. The high-pressure oil pump with the noise reduction function according to claim 1, wherein a positioning rod (65) is fixedly connected to the inside of the base frame (1), one end of the positioning rod (65) penetrates through the spring (62) and the movable frame (61), and the surface of the positioning rod (65) is in sliding connection with the spring (62) and the inner cavity of the movable frame (61).
  5. 5. The high-pressure oil pump with the noise reduction function according to claim 4, wherein one end of the positioning rod (65) is fixedly provided with a supporting block (66), and the supporting block (66) is matched with the movable frame (61).
  6. 6. The high-pressure oil pump with the noise reduction function according to claim 1, wherein a sliding block (67) is fixedly arranged at the bottom of the movable frame (61), a sliding rail (68) is fixedly arranged in the base frame (1), and the surface of the sliding block (67) is in sliding connection with an inner cavity of the sliding rail (68).
  7. 7. The high-pressure oil pump with the noise reduction function according to claim 6, wherein a limiting block (6701) is fixedly arranged on the surface of the sliding block (67), a limiting groove (6702) is formed in the inner wall of the sliding rail (68), and the inner cavity of the limiting groove (6702) is in sliding connection with the surface of the limiting block (6701).
  8. 8. The high-pressure oil pump with the noise reduction function of claim 1, wherein a limit frame (6101) is inserted at one side of the base frame (1), the surface of the limit frame (6101) is in sliding connection with the inner cavity of the base frame (1), the limit frame (6101) is matched with the movable frame (61), a clamping plate (6102) is rotatably arranged on the surface of the base frame (1), and the clamping plate (6102) is matched with the limit frame (6101).

Description

High-pressure oil pump with noise reduction function Technical Field The utility model relates to the field of high-pressure oil pumps, in particular to a high-pressure oil pump with a noise reduction function. Background The high-pressure oil pump is a core component of a fuel injection system and a hydraulic device, pressurizes low-pressure fuel to form high pressure through plunger or piston movement, precisely controls injection pressure, time and flow, fully atomizes the fuel to optimize combustion efficiency, and is widely applied to the fields of automobiles, engineering machinery, ships, aerospace and the like as a power source of hydraulic equipment such as jacks, heading devices and the like, and plays a key role in improving engine power, reducing emission and guaranteeing stable operation of the hydraulic system. At present, the high-pressure oil pump in the prior art is fixed by bolts under long-time use, so that the high-pressure oil pump base is easy to loosen and the like under long-time use, and when the high-pressure oil pump base is loosened and the like, mechanical vibration is amplified to intensify noise and influence the service life of the high-pressure oil pump, and therefore, the high-pressure oil pump with the noise reduction function is provided for solving the problems. Disclosure of utility model In order to make up for the deficiency of the prior art, the high-pressure oil pump in the prior art is easy to have the conditions of loosening a base and the like under long-time use, and further causes the problem that mechanical vibration is amplified to aggravate noise. The high-pressure oil pump with the noise reduction function comprises a base frame and a base seat, wherein the surface of the base seat is fixedly provided with a high-pressure oil pump main body, the base seat is matched with the base frame for use, the inside of the base seat is fixedly provided with a bracket, the surface of the bracket is fixedly provided with a shock pad, the surface of the shock pad is in contact with the bottom of the base seat, the inside of the base seat is rotatably provided with a threaded sleeve, the bottom of the base seat is fixedly connected with a stud, the stud is matched with the threaded sleeve for use, and the inside of the base seat is provided with a fastening mechanism; The fastening mechanism comprises a movable frame which is slidably connected inside a base frame, a plurality of teeth are fixedly arranged on the surface of the movable frame, a gear is sleeved on the surface of the threaded sleeve, the surface of the gear is meshed with the teeth, a spring is arranged inside the base frame, one end of the spring is fixedly connected with the inner wall of the base frame, and the other end of the spring is fixedly connected with the inner wall of the movable frame. Preferably, a positioning sleeve is fixedly arranged in the base frame, a first positioning block is fixedly arranged on the surface of the threaded sleeve, and the surface of the first positioning block is in sliding connection with the inner cavity of the positioning sleeve. Preferably, a positioning frame is fixedly arranged in the base frame, a second positioning block is fixedly arranged on the surface of the threaded sleeve, and the surface of the second positioning block is in sliding connection with an inner cavity of the positioning frame. Preferably, a positioning rod is fixedly connected to the inside of the base frame, one end of the positioning rod penetrates through the spring and the movable frame, and the surface of the positioning rod is in sliding connection with the inner cavities of the spring and the movable frame. Preferably, one end of the positioning rod is fixedly provided with a supporting block, and the supporting block is matched with the movable frame for use. Preferably, a sliding block is fixedly arranged at the bottom of the movable frame, a sliding rail is fixedly arranged in the base frame, and the surface of the sliding block is in sliding connection with the inner cavity of the sliding rail. Preferably, a limiting block is fixedly arranged on the surface of the sliding block, a limiting groove is formed in the inner wall of the sliding rail, and the inner cavity of the limiting groove is in sliding connection with the surface of the limiting block. Preferably, a limit frame is inserted at one side of the base frame, the surface of the limit frame is in sliding connection with the inner cavity of the base frame, the limit frame is matched with the movable frame for use, a clamping plate is installed in the rotation of the base frame, and the clamping plate is matched with the limit frame for use. The utility model has the advantages that: 1. According to the utility model, the bracket and the shock pad are arranged, so that noise caused by vibration generated by the high-pressure oil pump main body and the base can be effectively reduced, and the screw sleeve is supported by th