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CN-121993414-A - Oilless screw blower

CN121993414ACN 121993414 ACN121993414 ACN 121993414ACN-121993414-A

Abstract

The invention relates to the technical field of blowers and discloses an oilless screw blower, which comprises a base, wherein the top of the base is fixedly connected with an adjusting mechanism, the adjusting mechanism comprises a mounting frame and a middle support, the mounting frame is fixedly connected to the middle part of the top end of the base, a driving motor is arranged on the left side of the top of the mounting frame, a machine head is arranged on the right side of the top of the mounting frame, the driving motor is in transmission connection with the machine head through the middle support, the bottom of the machine head is communicated with a connecting pipe, the bottom of the connecting pipe is provided with a connecting ring, and a plurality of mounting seats are fixedly connected to the inner side of the connecting pipe at equal intervals. The gear is driven to rotate through the servo motor, the connecting ring is driven to rotate through the meshing effect of the tooth grooves on the outer side of the connecting ring and the gear, and the connecting seat is pushed to move through the connecting rod, so that the plurality of arc baffles are driven to simultaneously rotate inwards or outwards, the air flow in the connecting pipe is changed, and the active regulation of the air pressure in the blower is realized.

Inventors

  • HUANG DAPING
  • SONG ZHANMING
  • LIN KUN
  • SU MEIYAN

Assignees

  • 力达(中国)机电有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (10)

  1. 1. The oil-free screw blower comprises a base (1), and is characterized in that an adjusting mechanism (2) is fixedly connected to the top of the base (1), the adjusting mechanism (2) is used for conveniently adjusting the internal pressure of the blower, a filtering mechanism (3) is arranged on the right side of the top of the base (1), the filtering mechanism (3) is used for filtering air entering the blower, a cooling mechanism (4) is arranged on the left side of the top of the base (1), and the cooling mechanism (4) is used for cooling the blower; Adjustment mechanism (2) are including mounting bracket (21) and well support (23), the top middle part of mounting bracket (21) fixedly connected with base (1), the top left side of mounting bracket (21) is provided with driving motor (22), the top right side of mounting bracket (21) is provided with aircraft nose (24), driving motor (22) are connected with aircraft nose (24) transmission through well support (23), the bottom intercommunication of aircraft nose (24) has connecting pipe (25), and the bottom of connecting pipe (25) is provided with go-between (26), the inboard equidistance fixedly connected with of connecting pipe (25) a plurality of mount pad (27), the outside rotation of mount pad (27) is connected with arc baffle (212), the inboard top right-hand member fixedly connected with servo motor (28) of mounting bracket (21), output fixedly connected with gear (29) of servo motor (28), tooth groove (210) have been seted up in the outside of go-between (26), the inboard equidistance rotation of connecting ring (26) is connected with a plurality of connecting rods (211), the outside of connecting rod (212) is provided with arc baffle (213) and arc baffle (213).
  2. 2. The oilless screw blower according to claim 1, wherein the filtering mechanism (3) comprises an air inlet sound-reducing box (31), the air inlet sound-reducing box (31) is fixedly connected to the right side of the top of the base (1), the air inlet sound-reducing box (31) is communicated with an air filtering box (32), the left side of the air filtering box (32) is communicated with an air supply pipe (33), the bottom of the air supply pipe (33) is communicated with the machine head (24), an air filter core (34) is arranged in the air filtering box (32), a shell (35) is fixedly connected to the left side of the air filtering box (32), a movable ring (36) is rotationally connected to the right side of the shell (35), a supporting disc (37) is fixedly connected to the left side of the movable ring (36), curved grooves (38) are formed in the periphery of the outer side of the supporting disc (37), plug-in columns (39) are connected to the inner sides of the Qu Xingcao in a sliding mode, movable block (310) is fixedly connected to the left ends of the plug-in columns (39), one side of the movable block (310) is fixedly connected with a movable block (311), and the movable block (311) is fixedly connected to the inner side of the movable block (33).
  3. 3. An oil-free screw blower according to claim 1, characterized in that the cooling mechanism (4) comprises an oil tank (41), the oil tank (41) is fixedly connected to the left side of the top of the base (1), an oil pump (42) is fixedly connected to the front side of the top of the base (1), the input end of the oil pump (42) is communicated with the oil tank (41), the output end of the oil pump (42) is communicated with an oil delivery pipe two (46), the right side of the oil tank (41) is communicated with an oil delivery pipe one (43), the upper side of the base (1) is provided with a cooler (44), the bottom of the cooler (44) is fixedly connected with a fan (45), the right side of the cooler (44) is communicated with an oil delivery distributor (47), the top of the oil delivery pipe two (46) is communicated with the oil delivery distributor (47), the bottom of the oil delivery distributor (47) is communicated with an oil delivery pipe three (48), the front side of the head (24) is provided with an oil delivery pipe (49), the bottom of the oil delivery pipe (49) is communicated with the bottom of the oil tank (410), and the bottom of the oil tank (410) is communicated with the heat exchange tank (49).
  4. 4. An oil-free screw blower as claimed in claim 1, wherein the adjusting mechanism (2) further comprises a muffler (217), the muffler (217) is arranged in the middle of the top end of the base (1), a conveying pipe (216) is communicated with the left end of the muffler (217), the top of the conveying pipe (216) is communicated with the connecting ring (26), and an explosion-proof piece (218) is arranged on the rear side of the mounting seat (27).
  5. 5. An oil-free screw blower as claimed in claim 4, wherein the adjusting mechanism (2) further comprises gaskets (215), and the two gaskets (215) are respectively disposed on the upper and lower sides of the connecting ring (26).
  6. 6. An oil-free screw blower as claimed in claim 1, wherein the top of the mounting frame (21) is fixedly connected with a plurality of shock pads (219), and the bottoms of the driving motor (22) and the handpiece (24) are respectively fixedly connected with the corresponding shock pads (219).
  7. 7. An oil-free screw blower as claimed in claim 2, wherein the filter mechanism (3) further comprises driving teeth (312), the driving teeth (312) are arranged at the rear side of the movable ring (36), a threaded rod (313) is rotatably connected to the rear side of the interior of the air filter box (32), a rack (314) is in threaded connection with the outer side of the threaded rod (313), the rack (314) is in meshed connection with the driving teeth (312), the bottom of the threaded rod (313) penetrates through the air filter box (32), and the rear side of the rack (314) is in sliding connection with the inner side of the air filter box (32).
  8. 8. An oil-free screw blower as claimed in claim 1, characterized in that the adjusting mechanism (2) further comprises a chute (214), the connection seat (213) being in sliding connection with the chute (214).
  9. 9. An oil-free screw blower according to claim 3, characterized in that the cooling mechanism (4) further comprises a pressure sensor (411), the pressure sensor (411) being arranged at the bottom of the oil distributor (47), the right side of the oil distributor (47) being provided with a temperature sensor (412).
  10. 10. An oil-free screw blower as claimed in claim 3, characterized in that the cooling mechanism (4) further comprises a breathing cap (413), the breathing cap (413) is arranged at the top of the oil tank (41), and an oil drain port (414) is communicated with the front side of the oil tank (41).

Description

Oilless screw blower Technical Field The invention relates to the technical field of blowers, in particular to an oilless screw blower. Background The blower is used as a fluid machine for converting mechanical energy of the prime motor into gas pressure energy, and is mainly used for providing air with certain pressure and flow so as to meet the technological requirements of aeration oxygenation, material conveying or combustion supporting and the like. The oil-free screw blower is used as an advanced positive displacement rotary machine, the internal compression of gas is realized by virtue of the unique double-screw meshing compression principle, the oil-free screw blower has the remarkable advantages of high efficiency, low noise, stable operation, complete oil-free exhaust and the like, compared with the traditional Roots blower, the energy efficiency advantage of the oil-free screw blower under the high-pressure working condition is more obvious, and the cleanliness of output gas can be ensured because the compression cavity is not required to be sealed by lubricating oil, so the oil-free screw blower gradually becomes main stream gas source equipment in water treatment and high-precision industries. When the existing oil-free screw blower works, the main machine head is usually driven by a motor to rotate at a high speed through a coupler or a belt, air is conveyed to an air consumption terminal through an exhaust pipeline after being compressed, but in the actual use process, as the screw blower has higher running rotating speed, the main machine head and the motor generate larger vibration, the existing installation mode mostly adopts a simple bolt rigid connection or a basic rubber pad, although the basic fixing problem is solved, the connection mode has limited absorption capacity to high-frequency vibration, the whole impact force of the equipment is still larger under long-term running, the looseness of connecting parts or the cracking of pipeline weld joint are easy to be caused, the running stability of the equipment is influenced, in order to solve the problems, the vibration of the equipment is reduced by adding a damping structure at the bottom of the machine head or the motor in the prior art, in actual working conditions, the exhaust pressure and flow of the blower are required to be dynamically adjusted, the prior art generally adopts a frequency converter to adjust the rotation speed of a motor or installs a throttle valve on an exhaust pipeline to solve the problem, but when the motor is in low-frequency operation, the efficiency is reduced and the heat dissipation is poor, and when an external butterfly valve is adopted for throttling, the butterfly valve is generally of a single plate structure, the flow section in a pipeline is asymmetric when the valve plate rotates, so that the flow is deflected and turbulent, the flow noise is increased, uneven impact pressure is generated on the pipe wall, the active quick and uniform management of the gas pressure state in the blower cannot be realized, and the quick adaptation of the pressure and the flow cannot be realized due to the fact that the adjusting response speed of equipment is slow and the safety is insufficient when the requirements of high pressure and variable working conditions are met. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an oilless screw blower, which solves the problems that the existing oilless screw blower is difficult to realize uniform and synchronous adjustment of the sectional area of an air flow channel in a connecting pipe, so that the exhaust pressure state cannot be actively managed, and the high pressure and variable working conditions are difficult to be quickly and safely adapted. The oil-free screw blower comprises a base, wherein the top of the base is fixedly connected with an adjusting mechanism, the adjusting mechanism is used for conveniently adjusting the internal pressure of the blower, the right side of the top of the base is provided with a filtering mechanism, the filtering mechanism is used for filtering air entering the blower, and the left side of the top of the base is provided with a cooling mechanism, and the cooling mechanism is used for cooling the blower; The utility model provides a regulating mechanism includes mounting bracket and well support, mounting bracket fixed connection is in the top middle part of base, the top left side of mounting bracket is provided with driving motor, the top right side of mounting bracket is provided with the aircraft nose, driving motor holds in the palm with the aircraft nose transmission through well and is connected, the bottom intercommunication of aircraft nose has the connecting pipe, the bottom of connecting pipe is provided with the go-between, the inboard equidistance fixedly connected with of connecting pipe a plurality of mount pads, the outside of mount pad rotates and is connected with arc baffl