Variable frequency oil-free screw air compressor convenient for maintenance

Abstract

The utility model discloses a kind of frequency conversion oil-free screw air compressor for overhauling, it is related to air compressor technical field.The utility model includes body, the bottom of one side of body is fixedly connected with quick repair mechanism, the side of body is fixedly connected with air intake cover, the inner chamber of air intake cover is fixedly connected with filter dust dredging assembly, quick repair mechanism includes shell.The utility model greatly improves the overhauling convenience of air intake cover by quick repair mechanism, when needing to overhaul air intake cover, first motor drives tooth plate and positioning block to be extracted from the positioning hole of limiting block, while limiting block is separated from the limiting groove on the surface of shell, air intake cover can be quickly removed, compared with traditional complex overhaul mode, the design does not need tedious tool and procedure, greatly shorten overhaul time, it is convenient to carry out comprehensive inspection and maintenance to filter part, air inlet groove and other key parts inside air intake cover, significantly improve overhaul efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of air compressor technology, and in particular relates to a variable frequency oil-free screw air compressor that is easy to maintain. Background Technology

[0002] In the industrial production sector, variable frequency oil-free screw air compressors occupy a crucial position in many industries with extremely strict air quality requirements, such as food processing, medical and pharmaceutical, and electronics manufacturing, due to their excellent energy-saving characteristics, high efficiency, and pollution-free advantages.

[0003] A patent with publication number CN212508804U discloses a two-stage compression energy-saving screw air compressor that is easy to maintain. Compared with traditional air compressors, this screw air compressor is easier to maintain and repair. It also adds multiple heat dissipation components to the surface of the machine body, ensuring a good operating environment and extending the service life of internal components. However, the ventilation device in the above technology is a fixed structure. Once the air intake hood malfunctions, such as a clogged filter or internal structural damage, it is difficult to quickly and comprehensively inspect and maintain its internal components. This makes it impossible to detect potential problems in a timely manner, greatly increasing the risk of equipment failure and maintenance costs. Furthermore, the air intake slots of the air intake hood are prone to blockage due to the adsorption of dust and impurities from the air during long-term use, affecting intake efficiency and thus reducing the overall performance of the air compressor. Utility Model Content

[0004] The purpose of this utility model is to provide a variable frequency oil-free screw air compressor that is easy to maintain. Through the cooperation of the quick repair mechanism and the dust filter unblocking component, it solves the problem that the ventilation device in the prior art adopts a relatively fixed installation method, which makes subsequent disassembly inconvenient. At the same time, the air intake structure is very easy to become blocked due to the adsorption of dust and impurities in the air during long-term use.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a variable frequency oil-free screw air compressor that is easy to maintain. It includes a machine body, a quick-repair mechanism fixedly connected to the bottom of one side of the machine body, an air intake hood fixedly connected to one side of the machine body, and a dust filter and unblocking assembly fixedly connected to the inner cavity of the air intake hood. The quick-repair mechanism includes two outer shells. One side of each outer shell is fixedly connected to the machine body, and a first motor is fixedly connected to the inner wall of the outer shell. A gear is fixedly connected to the output end of the first motor, and gear plates mesh with both sides of the gear. Slide rails are fixedly connected to both sides of the inner cavity of the outer shell, with one side of each slide rail slidably connected to a gear plate. A positioning block is fixedly connected to one side of each gear plate. Limiting blocks are fixedly connected to the top and bottom of both sides of the air intake hood. Openings are provided at the top and bottom of the outer shell surface. The device has a limiting groove, with one side of the limiting block extending into the inner cavity of the limiting groove. Both sides of the gear mesh with the toothed plate. Based on the meshing transmission principle between the gear and the toothed plate, the rotational motion of the gear can be efficiently and accurately converted into the linear motion of the toothed plate. The toothed plate and the slide rail are connected by a sliding connection. The slide rail not only provides precise guidance for the movement of the toothed plate, ensuring that the toothed plate remains stable during movement without deviation or jamming, but also effectively disperses the force on the toothed plate during movement, extending the service life of the toothed plate. When the positioning block is inserted into the positioning hole of the limiting block, the air intake cover is firmly locked to the machine body, forming a stable and reliable connection structure, ensuring that the air intake cover will not loosen or shift due to vibration or other external forces during the operation of the air compressor.

[0007] The present invention is further configured such that the dust filter and unblocking component includes a second motor, one side of which is fixedly connected to the air intake hood, and a threaded rod is fixedly connected to the output end of the second motor. A threaded sleeve is threadedly connected to the surface of the threaded rod, and a connecting block is fixedly connected to one side of the threaded sleeve. Cleaning plates are fixedly connected to both sides of the connecting block, and cleaning teeth are fixedly connected to one side of the cleaning plate. An air intake groove is opened on the surface of the air intake hood, and one side of the cleaning plate extends into the inner cavity of the air intake groove. When the air intake groove becomes clogged due to long-term use and the adsorption of a large amount of dust and impurities, the maintenance personnel only need to start the second motor. Driven by the threaded rod, the threaded sleeve drives the cleaning plate to slide smoothly in the groove opened on the surface of the air intake hood through the connecting block. The cleaning teeth on one side of the cleaning plate can closely fit the inner wall of the air intake groove, and perform all-round, no-dead-angle cleaning of the air intake groove, thoroughly removing the dust, impurities and other pollutants adsorbed in the groove.

[0008] The present invention is further configured such that an installation bracket is fixedly connected to the inner cavity of the air intake hood, and a filter plate is fixedly connected to the inner cavity of the installation bracket. When outside air enters the air intake hood, it will first pass through the filter plate. The filter plate can effectively intercept impurities such as tiny particles and microorganisms in the air by means of its porous structure, ensuring that the purity of the air entering the air compressor meets the strict production standards.

[0009] The present invention is further configured such that a cover plate is hinged to one side of the surface of the machine body, and a handle is fixedly connected to one side of the surface of the cover plate. During equipment inspection, maintenance personnel can quickly open the cover plate to observe the operating status of the internal components and promptly identify potential problems.

[0010] The present invention is further configured such that a positioning hole is provided on one side of the limiting block, and one side of the positioning block extends into the inner cavity of the positioning hole. The positioning block is firmly inserted into the positioning hole to ensure that the connection between the air intake cover and the machine body is stable and reliable. Even if the air compressor generates large vibrations during operation, the air intake cover will not become loose.

[0011] The present invention is further configured such that a groove is provided on one side of the surface of the air intake hood, the groove is slidably connected to the cleaning plate, and the cleaning plate and the groove are slidably connected. When the dust filter unblocking component is working, the cleaning plate slides smoothly and precisely along the groove under the drive of the threaded sleeve and the connecting block.

[0012] The present invention is further configured such that movable grooves are provided at the top and bottom of the inner cavity of the outer shell, the movable grooves are adapted to the positioning block, and one side of the positioning block extends into the inner cavity of the positioning hole through the movable groove, so as to achieve the effect of quickly positioning the limiting block.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model greatly improves the convenience of air intake cover maintenance through a quick repair mechanism. When the air intake cover needs to be repaired, the first motor drives the toothed plate and positioning block to be pulled out from the positioning hole of the limiting block. At the same time, the limiting block disengages from the limiting groove on the surface of the outer shell, so that the air intake cover can be quickly removed. Compared with the traditional complicated maintenance method, this design does not require cumbersome tools and steps, greatly shortens the maintenance time, and facilitates a comprehensive inspection and maintenance of key parts such as the filter components and air intake slots inside the air intake cover, significantly improving maintenance efficiency.

[0015] 2. When the air inlet slot becomes blocked, the second motor is started and the cleaning plate slides in the groove opened on the surface of the air inlet cover. The cleaning teeth thoroughly clean the air inlet slot, removing the dust and impurities adsorbed in the slot, effectively ensuring the smooth flow of the air inlet slot, maintaining the good air intake efficiency of the air compressor, and thus improving the working performance of the whole machine. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1This is a 3D view of a variable frequency oil-free screw air compressor that is easy to maintain.

[0018] Figure 2 This is a three-dimensional view of the air intake shroud in a variable frequency oil-free screw air compressor that is easy to maintain.

[0019] Figure 3 This is a cross-sectional view of the outer casing of a variable frequency oil-free screw air compressor that is easy to maintain.

[0020] Figure 4 This is a rear-view perspective view of the intake shroud in a variable frequency oil-free screw air compressor designed for easy maintenance.

[0021] Figure 5 This is a three-dimensional diagram of a dust filter and unblocking component in a variable frequency oil-free screw air compressor that is easy to maintain.

[0022] In the attached diagram: 1. Body; 2. Quick-repair mechanism; 201. Outer shell; 202. First motor; 203. Gear; 204. Tooth plate; 205. Slide rail; 206. Positioning block; 207. Limiting block; 208. Limiting groove; 3. Air intake hood; 4. Dust filter and unblocking assembly; 401. Second motor; 402. Threaded rod; 403. Threaded sleeve; 404. Connecting block; 405. Cleaning plate; 406. Cleaning teeth; 407. Air intake groove; 5. Mounting bracket; 6. Filter plate; 7. Cover plate; 8. Slide groove; 9. Movable groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Please see Figure 1-5 This utility model relates to a variable frequency oil-free screw air compressor that is easy to maintain. It includes a body 1, a quick-repair mechanism 2 fixedly connected to the bottom of one side of the body 1, an air intake hood 3 fixedly connected to one side of the body 1, and a dust filter and unblocking assembly 4 fixedly connected to the inner cavity of the air intake hood 3. The quick-repair mechanism 2 includes two outer shells 201. One side of each outer shell 201 is fixedly connected to the body 1, and a first motor 202 is fixedly connected to the inner wall of each outer shell 201. The output end of the first motor 202 is fixedly... A gear 203 is fixedly connected, and gear plates 204 mesh on both sides of the gear 203. Slide rails 205 are fixedly connected to both sides of the inner cavity of the outer shell 201. One side of the slide rail 205 is slidably connected to the gear plate 204. A positioning block 206 is fixedly connected to one side of the gear plate 204. Limiting blocks 207 are fixedly connected to the top and bottom of both sides of the air intake cover 3. Limiting grooves 208 are opened on the top and bottom of the surface of the outer shell 201. One side of the limiting block 207 extends into the inner cavity of the limiting groove 208.

[0026] Specifically: The two sides of the gear 203 mesh with the toothed plate 204 respectively. Based on the meshing transmission principle between the gear 203 and the toothed plate 204, the rotational motion of the gear 203 can be efficiently and accurately converted into the linear motion of the toothed plate 204. The toothed plate 204 and the slide rail 205 adopt a sliding connection. The slide rail 205 not only provides precise guidance for the movement of the toothed plate 204, ensuring that the toothed plate 204 remains stable during the movement and does not deviate or jam, but also effectively disperses the force on the toothed plate 204 during the movement, extending the service life of the toothed plate 204. When the positioning block 206 is inserted into the positioning hole of the limiting block 207, the air intake cover 3 is firmly locked on the machine body 1, forming a stable and reliable connection structure, ensuring that the air intake cover 3 will not loosen or shift due to vibration or other external forces during the operation of the air compressor.

[0027] Example 2

[0028] Please see Figure 1-5 Based on Embodiment 1, the dust filter unblocking assembly 4 includes a second motor 401. One side of the second motor 401 is fixedly connected to the air intake hood 3. A threaded rod 402 is fixedly connected to the output end of the second motor 401. A threaded sleeve 403 is threadedly connected to the surface of the threaded rod 402. A connecting block 404 is fixedly connected to one side of the threaded sleeve 403. Cleaning plates 405 are fixedly connected to both sides of the connecting block 404. A cleaning tooth 406 is fixedly connected to one side of the cleaning plate 405. An air intake groove 407 is opened on the surface of the air intake hood 3. One side of the cleaning plate 405 extends... The air intake hood 3 extends into the inner cavity of the air intake slot 407. The inner cavity of the air intake hood 3 is fixedly connected to the mounting bracket 5. The inner cavity of the mounting bracket 5 is fixedly connected to the filter plate 6. One side of the surface of the body 1 is hinged to the cover plate 7. One side of the surface of the cover plate 7 is fixedly connected to the handle. One side of the limiting block 207 is provided with a positioning hole. One side of the positioning block 206 extends into the inner cavity of the positioning hole. One side of the surface of the air intake hood 3 is provided with a sliding groove 8. The sliding groove 8 is slidably connected to the cleaning plate 405. The top and bottom of the inner cavity of the outer shell 201 are provided with movable grooves 9. The movable grooves 9 are adapted to the positioning block 206.

[0029] Specifically: When the air intake slot 407 becomes clogged due to long-term use and the accumulation of dust and impurities, maintenance personnel only need to start the second motor 401. Driven by the threaded rod 402, the threaded sleeve 403, through the connecting block 404, drives the cleaning plate 405 to slide smoothly within the groove 8 on the surface of the air intake shroud 3. The cleaning teeth 406 on one side of the cleaning plate 405 can tightly adhere to the inner wall of the air intake slot 407, performing a comprehensive and thorough cleaning of the air intake slot 407, completely removing dust, impurities, and other pollutants adsorbed within the slot. When outside air enters the air intake shroud 3, it first passes through the filter plate 6. The filter plate 6, with its porous structure, effectively intercepts tiny particles, microorganisms, and other impurities in the air, ensuring that air entering the air compressor is properly filtered. The air purity meets strict production standards. During equipment inspection, maintenance personnel can quickly open the cover 7 to visually observe the operation of internal components and promptly identify potential problems. The positioning block 206 is firmly inserted into the positioning hole to ensure a stable and reliable connection between the air intake hood 3 and the machine body 1. Even if the air compressor experiences significant vibration during operation, the air intake hood 3 will not become loose. The cleaning plate 405 and the slide 8 are connected by a sliding connection. When the dust removal component 4 is working, the cleaning plate 405 slides smoothly and precisely along the slide 8 under the action of the threaded sleeve 403 and the connecting block 404. One side of the positioning block 206 extends into the inner cavity of the positioning hole through the movable groove 9, achieving the effect of quickly positioning the limit block 207.

[0030] The working principle of this utility model is as follows: When the air intake shroud 3 needs to be installed, the first motor 202 is started, and the first motor 202 drives the gear 203 to rotate. The two sides of the gear 203 mesh with the toothed plate 204 respectively. The toothed plate 204 moves with the assistance of the slide rail 205. The positioning block 206 moves with the toothed plate 204. One side of the limiting block 207 extends into the limiting groove 208 opened on the surface of the outer shell 201. When the positioning block 206 is accurately inserted into the positioning hole on one side of the limiting block 207, the air intake shroud 3 is firmly locked onto the machine body 1, forming a stable and reliable connection structure, ensuring that the air intake shroud 3 will not be affected by vibration or other external forces during the operation of the air compressor. If the air compressor becomes loose or displaced, the air intake groove 407 on the surface of the air intake hood 3 may become clogged due to the adsorption of dust and impurities as the air compressor runs for a long time. When the second motor 401 is started, the second motor 401 drives the threaded rod 402 to rotate, and the threaded sleeve 403 moves along the axial direction of the threaded rod 402. The threaded sleeve 403 drives the cleaning plate 405 to slide smoothly in the sliding groove 8 opened on the surface of the air intake hood 3 through the connecting block 404. The cleaning teeth 406 on one side of the cleaning plate 405 are in close contact with the inner wall of the air intake groove 407 to clean the air intake groove 407, thoroughly removing the adsorbed dust, impurities and pollutants, ensuring that the air intake groove 407 is unobstructed, and maintaining the good air intake efficiency of the air compressor.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A variable frequency oil-free screw air compressor that is easy to maintain, comprising a body (1), characterized in that: A quick repair mechanism (2) is fixedly connected to the bottom of one side of the machine body (1), an air intake hood (3) is fixedly connected to one side of the machine body (1), and a dust filter and unblocking assembly (4) is fixedly connected to the inner cavity of the air intake hood (3). The quick repair mechanism (2) includes a housing (201), and there are two housings (201). One side of the housing (201) is fixedly connected to the body (1). A first motor (202) is fixedly connected to the inner wall of the housing (201). A gear (203) is fixedly connected to the output end of the first motor (202). Gear plates (204) mesh on both sides of the gear (203). Slide rails (205) are fixedly connected to both sides of the inner cavity of the housing (201). One side of the slide rail (205) is slidably connected to the gear plate (204). A positioning block (206) is fixedly connected to one side of the gear plate (204). Limiting blocks (207) are fixedly connected to the top and bottom of both sides of the air intake cover (3). Limiting grooves (208) are opened on the top and bottom of the surface of the housing (201). One side of the limiting block (207) extends into the inner cavity of the limiting groove (208).

2. The variable frequency oil-free screw air compressor for easy maintenance according to claim 1, characterized in that: The dust filtration and unblocking assembly (4) includes a second motor (401), one side of which is fixedly connected to the air intake hood (3). A threaded rod (402) is fixedly connected to the output end of the second motor (401). A threaded sleeve (403) is threadedly connected to the surface of the threaded rod (402). A connecting block (404) is fixedly connected to one side of the threaded sleeve (403). A cleaning plate (405) is fixedly connected to both sides of the connecting block (404). A cleaning tooth (406) is fixedly connected to one side of the cleaning plate (405). An air intake groove (407) is opened on the surface of the air intake hood (3). One side of the cleaning plate (405) extends into the inner cavity of the air intake groove (407).

3. The variable frequency oil-free screw air compressor for easy maintenance according to claim 1, characterized in that: The inner cavity of the air intake hood (3) is fixedly connected to a mounting bracket (5), and the inner cavity of the mounting bracket (5) is fixedly connected to a filter plate (6).

4. The variable frequency oil-free screw air compressor for easy maintenance according to claim 1, characterized in that: A cover plate (7) is hinged to one side of the surface of the body (1), and a handle is fixedly connected to one side of the surface of the cover plate (7).

5. A variable frequency oil-free screw air compressor that is easy to maintain according to claim 1, characterized in that: The limiting block (207) has a positioning hole on one side, and the positioning block (206) extends into the inner cavity of the positioning hole on one side.

6. A variable frequency oil-free screw air compressor that is easy to maintain according to claim 2, characterized in that: A groove (8) is provided on one side of the surface of the air intake hood (3), and the groove (8) is slidably connected to the cleaning plate (405).

7. A variable frequency oil-free screw air compressor that is easy to maintain according to claim 1, characterized in that: The top and bottom of the inner cavity of the outer shell (201) are provided with movable grooves (9), which are adapted to the positioning block (206).

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