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CN-121993445-A - Servo oil pump motor unit structure

CN121993445ACN 121993445 ACN121993445 ACN 121993445ACN-121993445-A

Abstract

The invention discloses a servo oil pump motor group structure, which relates to the technical field of servo oil pumps and comprises a mounting mechanism, wherein the mounting mechanism comprises a mounting bottom plate, the top of the mounting bottom plate is fixedly connected with a cooling mounting shell, a motor mounting cavity is formed in the cooling mounting shell, a shock pad is fixedly connected to the inner wall of the motor mounting cavity, and a sealing cover is arranged at the end part of the cooling mounting shell. According to the invention, through the cooperative design of the cooling mechanism and the preheating branch, the waste heat generated by the operation of the servo motor is efficiently recovered, the semiconductor refrigerator is matched with the cooling pipe to absorb the heat of the motor, and the heat exchanger transfers the heat to the hydraulic oil to be preheated through the first preheating pipe and the second preheating pipe, so that the temperature of the hydraulic oil is increased to a proper working area, the waste heat emission is reduced, the additional preheating energy consumption of the hydraulic oil during low-temperature starting is omitted, and the energy utilization rate is remarkably improved.

Inventors

  • SU XUEQIONG

Assignees

  • 苏雪琼

Dates

Publication Date
20260508
Application Date
20260123

Claims (9)

  1. 1. A servo oil pump motor group structure is characterized by comprising The mounting mechanism comprises a mounting bottom plate (11), the top of the mounting bottom plate (11) is fixedly connected with a cooling mounting shell (12), a motor mounting cavity (14) is formed in the cooling mounting shell (12), a shock pad (15) is fixedly connected to the inner wall of the motor mounting cavity (14), and a sealing cover (13) is arranged at the end part of the cooling mounting shell (12); The servo motor driving mechanism comprises a servo motor (21), the servo motor (21) is arranged in the motor mounting cavity (14), and one end of a rotating shaft of the servo motor (21) is fixedly connected with a driving gear set; the oil pump mechanism comprises a pump body (31), an oil inlet pipe (32) is arranged on one side of an inner cavity of the pump body (31), an oil outlet pipe (33) with a built-in valve is arranged on the other side of the inner cavity of the pump body (31), and an oil pump rotor (34) is rotatably connected in the pump body (31); The cooling mechanism comprises a cooling cavity (41), the top of the cooling cavity (41) is fixedly connected with a semiconductor refrigerator (42), the bottom of the semiconductor refrigerator (42) is provided with a heat absorbing end (43), the top of the semiconductor refrigerator (42) is provided with a heat releasing end (44), and one side of the inner cavity of the cooling cavity (41) is provided with a cooling pipe (45).
  2. 2. A servo oil pump motor set structure as in claim 1, wherein said drive gear set comprises a drive gear (23), a small drive gear (22) and a large drive gear (24), and a fork assembly is engaged with a surface of said drive gear (23).
  3. 3. The servo oil pump motor set structure of claim 2, wherein the shifting fork assembly comprises a driven gear set (25), a shifting fork (26) is rotatably connected to the surface of the driven gear set (25), a driving block (28) is fixedly connected to the end portion of the shifting fork (26), and a sliding rail (29) is slidably connected to the inside of the driving block (28).
  4. 4. The servo oil pump motor set structure according to claim 3, wherein the driving block (28) is internally connected with a screw (210) in a threaded manner, a driving motor (211) is arranged at the end part of the screw (210), a driving shaft (27) is inserted into the driven gear set (25), and one end of the driving shaft (27) is fixedly connected with the inside of the oil pump rotor (34).
  5. 5. A servo oil pump motor set structure as set forth in claim 3, wherein said driven gear group (25) comprises a driven gear, a small driven gear and a large driven gear, said driven gear corresponds to a driving gear (23), said small driven gear corresponds to a large driving gear (24), and said large driven gear corresponds to a small driving gear (22).
  6. 6. The servo oil pump motor set structure of claim 1, wherein the cooling mechanism further comprises a circulating pump (46), the circulating pump (46) is arranged at one end of a cooling pipe (45) close to the cooling cavity (41), the middle part of the cooling pipe (45) is distributed in the cooling installation shell (12) in a special-shaped spiral shape, and heat conduction silicone grease is filled in a gap.
  7. 7. The servo oil pump motor set structure of claim 1, wherein a heat exchanger (47) is arranged at the other end of the cooling pipe (45), a guide plate (48) is arranged in the heat exchanger (47), communication holes (49) are formed in the surface of the guide plate (48), a cooling liquid flowing cavity is formed between the guide plates (48), a return pipe (410) is arranged at the top of the inner cavity of the cooling liquid flowing cavity, and one end of the return pipe (410) is communicated with one side of the inner cavity of the cooling cavity (41).
  8. 8. The servo oil pump motor set structure of claim 7, wherein a preheating oil outlet (411) is arranged above the end part of the inner cavity of the heat exchanger (47), a first preheating pipe (412) is arranged on one side of the inner cavity of the preheating oil outlet (411), a preheating pipe communicating cavity (413) is arranged at the end part of the first preheating pipe (412), a second preheating pipe (414) is arranged on one side of the lower end of the inner cavity of the preheating pipe communicating cavity (413), a cold oil inlet (415) is arranged at the end part of the second preheating pipe (414), and a plurality of groups of first preheating pipes (412) and second preheating pipes (414) are arranged.
  9. 9. A servo oil pump motor set structure as set forth in claim 1, wherein said oil pump mechanism further comprises a preheating branch pipe (35) with a built-in valve, one end of said preheating branch pipe (35) is communicated with the inside of the oil outlet pipe (33), and the other end of said preheating branch pipe (35) is communicated with the inside of the cold oil inlet port (415).

Description

Servo oil pump motor unit structure Technical Field The invention relates to the technical field of servo oil pumps, in particular to a servo oil pump motor group structure. Background The traditional servo oil pump motor unit is a core power component of a hydraulic system and is widely applied to the fields of numerical control machine tools, injection molding machines, engineering machinery and the like. The hydraulic control device is formed by connecting a servo motor and an oil pump through a coupling, provides pressure oil for hydraulic actuating elements (such as a hydraulic cylinder and a hydraulic motor), realizes accurate speed and force control, and is a key component for guaranteeing automatic operation of equipment. However, in the precise manufacturing scene of variable load and complex working condition, such as a multi-working-condition control machine tool, the traditional motor unit heat dissipation system only passively discharges the waste heat generated by the operation of the motor, is not recovered, and needs extra energy consumption for preheating to reduce viscosity when hydraulic oil is started at low temperature, so that the energy waste is serious, meanwhile, the driving structure is mainly a fixed transmission ratio, and is difficult to adapt to different load demands only by adjusting the rotating speed of the servo motor, so that the problems of response lag and insufficient control precision are easy to occur, and the operation efficiency and the processing quality of the hydraulic system are influenced. Disclosure of Invention The present invention provides a servo oil pump motor unit structure to solve the problems set forth in the background art. In order to solve the technical problems, the invention adopts the following technical scheme: A servo oil pump motor set structure comprises a mounting mechanism, wherein the mounting mechanism comprises a mounting bottom plate, the top of the mounting bottom plate is fixedly connected with a cooling mounting shell, a motor mounting cavity is formed in the cooling mounting shell, a shock pad is fixedly connected to the inner wall of the motor mounting cavity, a sealing cover is arranged at the end of the cooling mounting shell, a servo motor driving mechanism comprises a servo motor, the servo motor is mounted in the motor mounting cavity, one end of a servo motor rotating shaft is fixedly connected with a driving gear set, the oil pump mechanism comprises a pump body, an oil inlet pipe is arranged on one side of an inner cavity of the pump body, an oil outlet pipe with a built-in valve is arranged on the other side of the inner cavity of the pump body, an oil pump rotor is connected in the inner cavity of the pump body in a rotating mode, the cooling mechanism comprises a cooling cavity, a semiconductor refrigerator is fixedly connected to the top of the cooling cavity, a heat absorbing end is arranged at the bottom of the semiconductor refrigerator, a heat releasing end is arranged at the top of the semiconductor refrigerator, and a cooling pipe is arranged on one side of the inner cavity of the cooling cavity. The technical scheme of the invention is further improved in that the driving gear set comprises a driving gear, a small driving gear and a large driving gear, and a shifting fork assembly is meshed with the surface of the driving gear. The technical scheme of the invention is further improved in that the shifting fork assembly comprises a driven gear set, the surface of the driven gear set is rotationally connected with a shifting fork, the end part of the shifting fork is fixedly connected with a driving block, and the inside of the driving block is slidably connected with a sliding rail. The technical scheme of the invention is further improved in that the driving block is internally connected with a screw in a threaded manner, the end part of the screw is provided with a driving motor, the inside of the driven gear set is inserted with a driving shaft, and one end of the driving shaft is fixedly connected with the inside of the oil pump rotor. The technical scheme of the invention is further improved in that the driven gear group comprises a driven gear, a small driven gear and a large driven gear, wherein the driven gear corresponds to the driving gear, the small driven gear corresponds to the large driving gear, and the large driven gear corresponds to the small driving gear. The cooling mechanism further comprises a circulating pump, wherein the circulating pump is arranged at one end of the cooling pipe close to the cooling cavity, the middle part of the cooling pipe is distributed in the cooling installation shell in a special-shaped spiral manner, and heat conduction silicone grease is filled in the gap. The cooling pipe is characterized in that a heat exchanger is arranged at the other end of the cooling pipe, a guide plate is arranged in the heat exchanger, communication holes are formed in the surface of th