Efficient energy-saving screw air compressor driven by servo driver

Abstract

The utility model discloses an efficient energy-saving screw type air compressor driven by a servo driver, which comprises an air compressor body controlled by the servo driver, a filter screen and a cleaning mechanism for cleaning dust adsorbed on the filter screen are fixedly arranged on the rear side of the air compressor body, and the cleaning mechanism comprises a placing frame arranged on the rear side of the air compressor body. Two connecting plates are in threaded connection with the exterior of the two-way threaded rod, the bottoms of the two connecting plates penetrate through the containing frame and extend out of the top end in the containing frame, a cleaning scraper is fixedly arranged at the bottom of each connecting plate, the front side of each cleaning scraper makes contact with the rear side of the filter screen, and the cleaning scrapers are driven by the connecting plates to move left and right; the filter screen is used for cleaning dust adsorbed on the filter screen; and a collecting mechanism for collecting dust is arranged in the placing frame. According to the air compressor, dust can be prevented from blocking the filter screen to affect the heat dissipation efficiency of the air compressor body, the cleaned dust can be collected, and the surrounding environment is prevented from being affected by the cleaned dust.

Description

Technical Field

[0001] The utility model relates to the technical field of screw air compressors, and particularly relates to an energy-efficient screw air compressor driven by a servo driver. Background Art

[0002] A screw compressor, also known as a screw air compressor, is a positive-displacement gas compression machine with a rotating working volume. The compression of the gas is achieved by the change of the volume, and the change of the volume is achieved by the rotation of a pair of rotors of the compressor in the casing.

[0003] For example, a screw air compressor provided in a Chinese patent application with the application number 202321976289.1 includes an air compressor body. A base is installed below the air compressor body, a top plate is provided at the top of the air compressor body, a protective cover is installed on the upper side of the top plate, heat dissipation holes are opened on both side walls of the air compressor body, an air-cooling pipe is rotatably provided between the base and the top plate, a blowing pipe orifice is provided on one side of the air-cooling pipe, and one end of the blowing pipe orifice is rotatably inserted into the heat dissipation hole. One end of the air-cooling pipe is connected to a blower through an air duct, a filter box is provided at the air inlet end of the blower, and one end of the air-cooling pipe is drivingly connected to an electric motor through a gear set. Through the rotatably provided air-cooling pipe and blowing pipe orifice between the base and the top plate, one end of the air-cooling pipe is connected to a blower through an air duct, and one end of the blowing pipe orifice is rotatably inserted into the heat dissipation hole, so that the blower, the air-cooling pipe and the blowing pipe orifice can blow and dissipate heat from one heat dissipation hole, accelerating the air circulation inside the air compressor and achieving a better heat dissipation effect.

[0004] However, the following problems still exist in this technical solution: A filter screen is provided in the filter box in this technical solution to facilitate the filtering of dust from the blown air. However, the filter screen in this device cannot be disassembled, and the dust adsorbed by the filter screen cannot be cleaned. The long-term accumulation of dust is likely to block the filter screen, thereby affecting the heat dissipation efficiency of the device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an energy-efficient screw air compressor driven by a servo driver, which can clean the dust on the filter screen through a cleaning mechanism to avoid the dust blocking the filter screen and affecting the heat dissipation efficiency of the air compressor body, and can also collect the dust through a collection mechanism to avoid the cleaned dust affecting the surrounding environment, so as to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An energy-efficient screw air compressor driven by a servo driver, comprising an air compressor body controlled by the servo driver. A filter screen is fixedly arranged at the rear side of the air compressor body. A cleaning mechanism for cleaning the dust adsorbed on the filter screen is arranged at the rear side of the air compressor body. The cleaning mechanism includes a placement frame arranged at the rear side of the air compressor body. The top end inside the placement frame is movably connected with a bidirectional threaded rod through a bearing. Two connecting plates are threadedly connected to the outer part of the bidirectional threaded rod. The moving directions of the two connecting plates are opposite. The bottoms of the two connecting plates penetrate through the placement frame and extend out of the top end inside the placement frame. A cleaning scraper is fixedly arranged at the bottom of each connecting plate. The front side of the cleaning scraper is in contact with the rear side of the filter screen. The cleaning scraper moves left and right under the drive of the connecting plate to clean the dust adsorbed on the filter screen. A collection mechanism for collecting dust is arranged inside the placement frame.

[0008] Preferably, the collection mechanism includes two support plates arranged on both sides of the placement frame. The rear sides of the support plates penetrate through the placement frame and extend out of the rear side of the placement frame. A limiting plate is fixedly arranged at the front end of the side of the two support plates away from each other. The side of the limiting plate away from the support plate penetrates through the placement frame and extends out of one side of the placement frame.

[0009] Preferably, first connecting frames are fixedly arranged on both sides of the placement frame. A threaded rod is movably connected inside the first connecting frame through a bearing. The threaded rod penetrates through the limiting plate on the same side and is threadedly connected to the limiting plate. Second connecting frames are fixedly arranged on both sides of the placement frame. A second rotating shaft is movably connected inside the second connecting frame through a bearing. Both ends of the bidirectional threaded rod penetrate through the placement frame and extend out of both sides of the placement frame. Worms are fixedly arranged at both ends of the bidirectional threaded rod. A worm gear is arranged through the outer part of the second rotating shaft. The worm and the worm gear on the same side are meshed with each other to drive the limiting plate to move.

[0010] Preferably, the rear end of the second rotating shaft penetrates through the second connecting frame and extends out of the rear end of the second connecting frame. The rear end of the threaded rod penetrates through the first connecting frame and extends out of the rear side of the first connecting frame. Second belt pulleys are arranged through the rear ends of the second rotating shaft and the threaded rod. The same second belt is arranged outside the two second belt pulleys to drive the second rotating shaft and the threaded rod to rotate simultaneously.

[0011] Preferably, a motor is fixedly connected to the top of the placement frame through a bracket. A first rotating shaft is fixedly arranged at one end of the motor. First belt pulleys are arranged through one end of the first rotating shaft and one end of the worm. The same first belt is arranged outside the two first belt pulleys to drive the bidirectional threaded rod to rotate.

[0012] Preferably, baffles are movably connected to both sides of the placement frame through hinges.

[0013] Preferably, handles are fixedly provided on the sides of the two baffles away from each other, which facilitates taking out the collected dust from the interior of the placement frame.

[0014] Preferably, an exhaust fan is fixedly communicated with one side of the air compressor body.

[0015] In the above technical solution, the advantages of the present utility model include: the present utility model can clean the dust on the filter screen through the cleaning mechanism, avoiding the blockage of the filter screen by dust and affecting the heat dissipation efficiency of the air compressor body, and can also collect the dust through the collection mechanism, avoiding the cleaning dust from affecting the surrounding environment.

[0016] In the preferred technical solution, there are also the following advantages:

[0017] 1. When it is necessary to clean the dust on the filter screen, start the motor. The motor can drive the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod can drive the two connecting plates to move. The connecting plates are used to drive the cleaning scraper to move. The two cleaning scrapers move left and right on the filter screen. The dust on the filter screen can be cleaned through the cleaning scraper, avoiding the blockage of the filter screen by dust and affecting the heat dissipation efficiency of the air compressor body.

[0018] 2. While the bidirectional threaded rod rotates, it can drive the worm to rotate. The worm is used to drive the second rotating shaft to rotate. The rotation of the second rotating shaft can drive the threaded rod to rotate. The rotation of the threaded rod drives the limiting plate to move. The limiting plate is used to drive the supporting plate to move. The supporting plate is moved out of the interior of the placement frame, and the cleaning scraper can push the dust into both sides of the interior of the placement frame. The placement frame can collect the dust through the collection mechanism, avoiding the cleaning dust from affecting the surrounding environment.

[0019] 3. When it is necessary to clean the dust inside the placement frame, pull the baffle through the handle to move the baffle out of the interior of the placement frame, and then the dust inside the placement frame can be cleaned to ensure the cleanliness inside the placement frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the front view of the high-efficiency energy-saving screw air compressor driven by a servo driver in the present utility model;

[0022] Figure 2 It is the rear view of the high-efficiency energy-saving screw air compressor driven by a servo driver in the present utility model;

[0023] Figure 3 Schematic diagram of the placement frame of the high-efficiency and energy-saving screw air compressor driven by a servo driver in the present utility model;

[0024] Figure 4 Of the present utility model Figure 3 Enlarged view of part A;

[0025] Figure 5 Schematic diagram of the cleaning mechanism of the high-efficiency and energy-saving screw air compressor driven by a servo driver in the present utility model;

[0026] Figure 6 Of the present utility model Figure 5 Enlarged view of part B;

[0027] Figure 7 Schematic diagram of the collection mechanism of the high-efficiency and energy-saving screw air compressor driven by a servo driver in the present utility model;

[0028] Figure 8 Of the present utility model Figure 7 Enlarged view of part C;

[0029] Figure 9 Schematic diagram of the baffle and handle of the high-efficiency and energy-saving screw air compressor driven by a servo driver in the present utility model;

[0030] Figure 10 Of the present utility model Figure 9 Enlarged view of part D.

[0031] Explanation of reference numerals:

[0032] 1 Air compressor body, 2 Servo driver, 3 Filter screen;

[0033] 4 Cleaning mechanism, 401 Placement frame, 402 Bidirectional threaded rod, 403 Connecting plate, 404 Cleaning scraper, 405 Motor, 406 First rotating shaft, 407 First pulley, 408 First belt;

[0034] 5 Collection mechanism, 501 Support plate, 502 Limiting plate, 503 First connecting frame, 504 Threaded rod, 505 Second connecting frame, 506 Second rotating shaft, 507 Worm, 508 Worm gear, 509 Second pulley, 510 Second belt;

[0035] 6 Baffle, 7 Handle, 8 Exhaust fan. Detailed implementation manners

[0036] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the accompanying drawings.

[0037] The present utility model provides asFigure 1-10 An energy-efficient screw air compressor driven by a servo drive, as shown, includes an air compressor body 1 controlled by a servo drive 2. A filter screen 3 is fixedly provided at the rear side of the air compressor body 1, and an exhaust fan 8 is fixedly communicated with one side of the air compressor body 1.

[0038] The advantages of the servo drive 2 are as follows: the energy-saving effect is the same as that of the synchronous motor system; the system force is greater; the accessories have better versatility and lower maintenance costs; and it has a longer service life in harsh use environments such as high temperature, high humidity, more dust, and more oil stains.

[0039] The benefit of using the servo drive 2 to control the air compressor body 1 in the present utility model is that it adopts two technologies, namely, constant pressure servo frequency conversion technology and centralized control system technology, which is a combination of energy-saving control and centralized control. It can control four air compressor bodies 1, and the system always keeps one of the air compressor bodies 1 in the constant pressure servo speed control mode, and according to the actual air consumption situation, the air compressor body 1 is loaded or unloaded to provide stable air power for users with the most optimized control logic.

[0040] The control logic of the servo drive 2 is to use a logic control circuit to prevent the synchronous loading of the air compressor body 1 to avoid causing power impact fluctuations. It can set the operation sequence of up to four air compressor bodies 1 at most, so as to realize the personalized control of the air compressor body 1 device. These operation sequences can be automatically changed according to the length of use time. If an accidental failure occurs in the control system, the affected air compressor body 1 will return to the bypass power frequency control according to the default setting and return to the default setting value, which will protect the user's air system to the greatest extent.

[0041] To ensure the normal operation of the air compressor body 1, as Figure 3 、 4 、5、6 shown, a cleaning mechanism 4 for cleaning the dust adsorbed on the filter screen 3 is provided at the rear side of the air compressor body 1. The cleaning mechanism 4 includes a placement frame 401 provided at the rear side of the air compressor body 1. The top end inside the placement frame 401 is movably connected to a bidirectional threaded rod 402 through a bearing. Two connecting plates 403 are threadedly connected to the outside of the bidirectional threaded rod 402. The two connecting plates 403 move left and right. The bottoms of the two connecting plates 403 both penetrate through the placement frame 401 and extend out of the top end inside the placement frame 401. A cleaning scraper 404 is fixedly provided at the bottom of each connecting plate 403. The front side of the cleaning scraper 404 is in contact with the rear side of the filter screen 3. Both ends of the bidirectional threaded rod 402 penetrate through the placement frame 401 and extend out of both sides of the placement frame 401. A collection mechanism 5 for collecting dust is provided inside the placement frame 401. The collection mechanism 5 includes two worm gears 507 provided on both sides of the bidirectional threaded rod 402.

[0042] As Figure 4As shown, a motor 405 is fixedly connected to the top of the placement frame 401 through a bracket. One end of the motor 405 is fixedly provided with a first rotating shaft 406. One end of the first rotating shaft 406 and one end of the worm 507 are both provided with a first pulley 407. A same first belt 408 is arranged outside the two first pulleys 407.

[0043] Turn on the exhaust fan 8. The exhaust fan 8 can discharge the hot air generated inside the air compressor body 1 to the outside of the air compressor body 1. The outside air enters the air compressor body 1 through the filter screen 3. The filter screen 3 can filter the dust in the outside air. The dust is adsorbed outside the filter screen 3. When it is necessary to clean the dust on the filter screen 3, start the motor 405. The motor 405 can drive the first rotating shaft 406 to rotate. Under the action of the first pulley 407 and the first belt 408, the first rotating shaft 406 can drive the worm 507 to rotate. The worm 507 can drive the bidirectional threaded rod 402 to rotate. The rotation of the bidirectional threaded rod 402 can drive the two connecting plates 403 to move. The connecting plates 403 are used to drive the cleaning scraper 404 to move. The two cleaning scrapers 404 move left and right on the filter screen 3. The dust on the filter screen 3 can be cleaned through the cleaning scraper 404, avoiding the dust blocking the filter screen 3 and affecting the heat dissipation efficiency of the air compressor body 1.

[0044] As Figure 6 、 7 As shown in Figures 8, 9, and 10, the collecting mechanism 5 includes two support plates 501 arranged on both sides of the placement frame 401. The rear sides of the support plates 501 penetrate through the placement frame 401 and extend to the rear side of the placement frame 401. The front ends of the two support plates 501 on the sides away from each other are fixedly provided with limit plates 502. The side of the limit plate 502 away from the support plate 501 penetrates through the placement frame 401 and extends to one side of the placement frame 401. First connecting frames 503 are fixedly arranged on both sides of the placement frame 401. A threaded rod 504 is movably connected to the inside of the first connecting frame 503 through a bearing. The threaded rod 504 penetrates through the limit plate 502 on the same side and is threadedly connected to the limit plate 502. Second connecting frames 505 are fixedly arranged on both sides of the placement frame 401. A second rotating shaft 506 is movably connected to the inside of the second connecting frame 505 through a bearing. A worm gear 508 is arranged outside the second rotating shaft 506. The worm 507 and the worm gear 508 on the same side are meshed with each other.

[0045] As Figure 10 As shown, the rear end of the second rotating shaft 506 penetrates through the second connecting frame 505 and extends to the rear end of the second connecting frame 505. The rear end of the threaded rod 504 penetrates through the first connecting frame 503 and extends to the rear side of the first connecting frame 503. Second pulleys 509 are arranged on the rear ends of the second rotating shaft 506 and the threaded rod 504. A same second belt 510 is arranged outside the two second pulleys 509.

[0046] While the worm gear 507 rotates, it can drive the worm wheel 508 to rotate. By using the worm wheel 508, the second rotating shaft 506 can be driven to rotate. Under the action of the second pulley 509 and the second belt 510, the second rotating shaft 506 can drive the threaded rod 504 to rotate. The rotation of the threaded rod 504 drives the limit plate 502 to move. By using the limit plate 502, the support plate 501 can be driven to move. The support plate 501 is moved out from the inside of the placement frame 401, and the cleaning scraper 404 can push the dust into both sides inside the placement frame 401. The inside of the placement frame 401 can collect the dust, avoiding the cleaned dust from affecting the surrounding environment. When the cleaning scraper 404 is moved out from both sides inside the placement frame 401, the support plate 501 is inserted into the inside of the placement frame 401, which can prevent the dust from falling out of the inside of the placement frame 401.

[0047] As Figure 9 shown, both sides of the placement frame 401 are movably connected with baffles 6 through hinges, and handles 7 are fixedly arranged on the sides of the two baffles 6 away from each other.

[0048] When it is necessary to clean the dust inside the placement frame 401, the baffle 6 is pulled through the handle 7, and the baffle 6 is moved out from the inside of the placement frame 401, then the dust inside the placement frame 401 can be cleaned to ensure the cleanliness inside the placement frame 401.

[0049] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An energy-efficient screw air compressor driven by a servo drive, comprising an air compressor body (1) controlled by a servo drive (2), characterized in that: A filter screen (3) is fixedly arranged at the rear side of the air compressor body (1); A cleaning mechanism (4) for cleaning the dust adsorbed on the filter screen (3) is arranged at the rear side of the air compressor body (1); The cleaning mechanism (4) includes a placement frame (401) arranged at the rear side of the air compressor body (1). The inner top end of the placement frame (401) is movably connected with a bidirectional threaded rod (402) through a bearing. Two connecting plates (403) are threadedly connected to the outside of the bidirectional threaded rod (402). The two connecting plates (403) move left and right. The bottoms of the two connecting plates (403) both penetrate through the placement frame (401) and extend out of the inner top end of the placement frame (401). A cleaning scraper (404) is fixedly arranged at the bottom of each connecting plate (403). The front side of the cleaning scraper (404) is in contact with the rear side of the filter screen (3). The cleaning scraper (404) moves left and right under the drive of the connecting plate (403) to clean the dust adsorbed on the filter screen (3); A collection mechanism (5) for collecting dust is arranged inside the placement frame (401).

2. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 1, characterized in that: The collection mechanism (5) includes two support plates (501) arranged on both sides of the placement frame (401). The rear sides of the support plates (501) penetrate through the placement frame (401) and extend out of the rear side of the placement frame (401). A limiting plate (502) is fixedly arranged at the front end of the side of the two support plates (501) away from each other. The side of the limiting plate (502) away from the support plate (501) penetrates through the placement frame (401) and extends out of one side of the placement frame (401).

3. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 2, characterized in that: First connecting frames (503) are fixedly arranged on both sides of the placement frame (401). A threaded rod (504) is movably connected to the inside of the first connecting frame (503) through a bearing. The threaded rod (504) penetrates through the limiting plate (502) on the same side and is threadedly connected to the limiting plate (502). Second connecting frames (505) are fixedly arranged on both sides of the placement frame (401). A second rotating shaft (506) is movably connected to the inside of the second connecting frame (505) through a bearing. Both ends of the bidirectional threaded rod (402) penetrate through the placement frame (401) and extend out of both sides of the placement frame (401). Worms (507) are fixedly arranged at both ends of the bidirectional threaded rod (402). A worm gear (508) is arranged through the outside of the second rotating shaft (506). The worm (507) and the worm gear (508) on the same side are meshed with each other to drive the limiting plate (502) to move.

4. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 3, characterized in that: The rear end of the second rotating shaft (506) penetrates through the second connecting frame (505) and extends out of the rear end of the second connecting frame (505). The rear end of the threaded rod (504) penetrates through the first connecting frame (503) and extends out of the rear side of the first connecting frame (503). Second belt wheels (509) are arranged through the rear ends of the second rotating shaft (506) and the threaded rod (504). The same second belt (510) is arranged outside the two second belt wheels (509) to drive the second rotating shaft (506) and the threaded rod (504) to rotate simultaneously.

5. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 3, characterized in that: The top of the placement frame (401) is fixedly connected to a motor (405) through a bracket. One end of the motor (405) is fixedly provided with a first rotating shaft (406). One end of the first rotating shaft (406) and one end of the worm (507) are both provided with a first pulley (407) penetrating therethrough. A same first belt (408) is arranged outside the two first pulleys (407) for driving the bidirectional threaded rod (402) to rotate.

6. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 1, wherein: Both sides of the placement frame (401) are movably connected to baffles (6) through hinges.

7. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 6, characterized in that: Handles (7) are fixedly provided on the sides of the two baffles (6) away from each other.

8. The high-efficiency and energy-saving screw air compressor driven by a servo driver according to claim 1, characterized in that: One side of the air compressor body (1) is fixedly communicated with an exhaust fan (8).

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