A device for quick replacement of filter cotton for screw air compressor

Abstract

The utility model relates to air compressor technology field proposes a kind of for screw air compressor filter cotton quick replacement device, including outer frame, inner frame and filter cotton, the outer frame is fixedly installed by bolt in screw air compressor box body one side air inlet, the outer frame bottom end both sides are fixedly installed with switch magnetic base, the inside of the inner frame is provided with two groups of through bolt, the filter cotton is fixedly installed in the inside of inner frame by two groups of through bolt.The utility model in clean filter cotton is installed in advance in spare inner frame, under the condition that screw air compressor does not stop, can be quickly replaced, and the inner frame is fixed mode simply used switch magnetic seat, and manual switching switch magnetic seat handle can realize disassembly, replace the cumbersome operation of traditional replacement filter cotton stop switching spare air compressor, save the power cost of opening spare air compressor, improve filter cotton replacement work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to a quick replacement device for filter cotton in screw air compressors. Background Technology

[0002] Screw air compressors are important equipment used in industrial and mining production. The filter cotton of screw air compressors plays a role in filtering impurities in the air, improving the air quality entering the system, and protecting the compressor and other key components from damage.

[0003] The existing screw air compressors need to be stopped every few days to remove the filter cotton and clean impurities during normal operation. In order to ensure normal production, the standby air compressor needs to be turned on and the active air compressor needs to be stopped. This increases the workload of the staff and the frequency of air compressor operation, so it needs to be improved. Utility Model Content

[0004] This invention proposes a quick replacement device for filter cotton in screw air compressors, which solves the problems in related technologies.

[0005] The technical solution of this utility model is as follows: A quick replacement device for filter cotton in a screw air compressor includes an outer frame, an inner frame, and filter cotton. The outer frame is fixedly installed on the air inlet on one side of the screw air compressor housing by bolts. Magnetic switch bases are fixedly installed on both sides of the bottom end of the outer frame. Two sets of through bolts are provided on the inner side of the inner frame. The filter cotton is fixedly installed on the inner side of the inner frame by two sets of through bolts. A speed control mechanism is provided on the side of the outer frame.

[0006] Optionally, the outer frame is made of 2mm carbon steel plate with a length of 1200mm and a width of 800mm, welded with 30mm and 30mm equilateral angle steel to form a rectangular structure of 1200mm x 800mm. The long side of the carbon steel plate has a hole with a diameter of 6mm drilled on it to fix it to the box body. The outer front of the outer frame is made of 2mm carbon steel flat iron welded into a grid shape to form a whole.

[0007] Optionally, the switch magnetic base is an NF-H flat-bottomed switch, and the maximum magnetic force of the switch magnetic base is thirty kilograms.

[0008] Optionally, the inner frame is a rectangular frame with a length of 1,195 mm by 795 mm, welded from 25 mm equilateral angle iron. Two sets of holes with a diameter of 6 mm are drilled on the 795 mm vertical surface at both ends. On one side of the back of the rectangular frame, several square grids with a width of 10 mm and 2 mm thick carbon steel flat iron are welded together to form a whole.

[0009] Optionally, the length of the filter cotton is equal to the length of the inner frame, and the diameter of the threaded bolt is six millimeters.

[0010] Optionally, the speed control mechanism includes a connecting frame, which is fixedly connected to the side of the inner frame. A roller is rotatably connected to the inner side of the connecting frame. A circular groove is formed on the surface of the roller. A telescopic spring is provided inside the circular groove. A resistance block is elastically connected inside the circular groove through the telescopic spring.

[0011] Optionally, the top of the roller is on the same horizontal plane as the top of the inner frame. The resistance block is initially completely inside the circular groove. When the inner frame moves inside the outer frame, the roller will rub against the inner wall of the outer frame and thus rotate. When the resistance block is completely inside the circular groove, it will not affect the movement of the inner frame.

[0012] Optionally, the elastic force of the telescopic spring is greater than the weight of the resistance block, and the end of the resistance block away from the telescopic spring is uneven. The weight of the resistance block itself will not cause it to move out of the circular groove, and the uneven end of the resistance block will generate greater resistance when it contacts the inner wall of the outer frame.

[0013] The working principle and beneficial effects of this utility model are as follows: 1. In this utility model, clean filter cotton is pre-installed in the spare inner frame, which allows for quick replacement without stopping the screw air compressor. The inner frame is fixed in a simple way by using a switch magnetic base. It can be disassembled by manually switching the handle on the switch magnetic base, which replaces the cumbersome operation of stopping the machine to switch to the spare air compressor when replacing filter cotton. This saves the electricity cost of starting the spare air compressor and improves the efficiency of filter cotton replacement.

[0014] 2. By incorporating a speed control mechanism, this utility model achieves the goal of controlling the movement speed of the inner frame when inserting the inner frame containing the cleaning filter cotton into the outer frame through the cooperation of components such as the connecting frame, rollers, and resistance blocks. This prevents damage to the inner frame containing the cleaning filter cotton due to excessive insertion speed, thereby improving the overall stability of the device during use. Attached Figure Description

[0015] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0016] Figure 1 This is a three-dimensional front view of the overall structure of this utility model; Figure 2 This is a three-dimensional side view of the overall structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the overall structure of the outer frame of this utility model; Figure 4 This is a three-dimensional schematic diagram of the overall structure of the inner frame of this utility model; Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a three-dimensional sectional view of the speed control mechanism structure of this utility model.

[0017] In the diagram: 1. Outer frame; 2. Magnetic switch base; 3. Inner frame; 4. Filter cotton; 5. Through bolt; 6. Speed ​​control mechanism; 61. Connecting frame; 62. Roller; 63. Circular groove; 64. Telescopic spring; 65. Resistance block. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Example 1

[0022] Reference Figures 1-6This is the first embodiment of the present invention, which proposes a quick-change device for filter cotton in a screw air compressor, including an outer frame 1, an inner frame 3, and filter cotton 4. The outer frame 1 is fixedly installed on the air inlet side of the screw air compressor housing by bolts. The outer frame 1 is a rectangular structure of 1200 mm x 800 mm made of 2 mm carbon steel plate welded with 30 mm x 30 mm equilateral angle steel. A 6 mm diameter hole is drilled on the 1200 mm long side of the carbon steel plate for fixing to the housing. Several square grids are welded to the outer front of the outer frame 1 to form a whole using 2 mm carbon steel flat iron. Switch magnetic bases 2 are fixedly installed on both sides of the bottom end of the outer frame 1. The switch magnetic bases 2 are N The F-H flat bottom and the magnetic base 2 of the switch have a maximum suction force of 30 kg. The inner frame 3 has two sets of through bolts 5 on the inner side. The filter cotton 4 is fixedly installed on the inner side of the inner frame 3 by the two sets of through bolts 5. The inner frame 3 is a square frame with a length of 1195 mm x 795 mm, welded from 25 mm x 25 mm equilateral angle iron. Two sets of holes with a diameter of 6 mm are drilled on the 795 mm vertical surface at both ends. On one side of the back of the rectangular frame, several square grids with a width of 10 mm and 2 mm thick carbon steel flat iron are welded together to form a whole. The length of the filter cotton 4 is equal to the length of the inner frame 3, and the diameter of the through bolts 5 is 6 mm. The outer frame 1 has a speed control mechanism 6 on the side.

[0023] In this embodiment, the filter cotton 4 is fixed inside the inner frame 3 by two sets of through bolts 5. When the filter cotton 4 needs to be replaced without stopping the machine, the two magnetic switch bases 2 are switched to the non-magnetic state. The inner frame 3 containing the clean filter cotton 4 is inserted into the rectangular grooves at the top and bottom of the rectangular outer frame 1 installed on the side of the air compressor housing. Pushing the inner frame 3 containing the clean filter cotton 4 causes the inner frame 3 containing the dirty filter cotton 4 to move outward and push it out. After replacing the inner frame 3 containing the clean filter cotton 4, the magnetic switch base 2 is switched to the magnetic position. Due to the magnetic force, the inner frame 3 and the outer frame 1 are attracted together, preventing the inner frame 3 from being pushed out by external force and affecting the filtration effect. This achieves the function of replacing the clean inner filter cotton 4 without stopping the machine, saving time and reducing the frequency of starting and stopping, and ensuring the normal operation and production of the air compressor. Example 2

[0024] Reference Figures 1-6This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that the speed control mechanism 6 includes a connecting frame 61, which is fixedly connected to the side of the inner frame 3. A roller 62 is rotatably connected to the inner side of the connecting frame 61. A circular groove 63 is formed on the surface of the roller 62, and a telescopic spring 64 is disposed inside the circular groove 63. A resistance block 65 is elastically connected inside the circular groove 63 through the telescopic spring 64. The top of the roller 62 is at the same horizontal plane as the top of the inner frame 3. The resistance block 65 is initially fully... Located inside the circular groove 63, when the inner frame 3 moves inside the outer frame 1, the roller 62 will rub against the inner wall of the outer frame 1 and thus rotate. When the resistance block 65 is completely inside the circular groove 63, it will not affect the movement of the inner frame 3. The elastic force of the telescopic spring 64 is greater than the weight of the resistance block 65, and the end of the resistance block 65 away from the telescopic spring 64 is uneven. The weight of the resistance block 65 itself will not cause it to move out of the circular groove 63. When the uneven end of the resistance block 65 contacts the inner wall of the outer frame 1, it will generate greater resistance.

[0025] Compared to Embodiment 1, further, during the process of inserting the inner frame 3 containing the cleaning filter cotton 4 into the rectangular grooves at the upper and lower ends of the rectangular outer frame 1 installed on the side of the air compressor housing, the inner frame 3 moves inside the outer frame 1. The roller 62 will rotate due to friction with the inner wall of the outer frame 1. When the inner frame 3 is pushed to move slowly, the resistance block 65 will not affect the movement of the inner frame 3 when it is completely in the circular groove 63. However, when the inner frame 3 is pushed to move quickly, the rotation speed of the roller 62 will also increase. At this time, the centrifugal force generated by the rapid rotation of the roller 62 will throw the resistance block 65 out of the circular groove 63. When the uneven end of the resistance block 65 contacts the inner wall of the outer frame 1, it will generate greater resistance to slow down the movement speed of the inner frame 3, preventing damage to the inner frame 3 containing the cleaning filter cotton 4 due to excessive insertion speed, thus improving the stability of the overall device during use.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-change device for filter cotton in a screw air compressor, characterized in that, The compressor includes an outer frame (1), an inner frame (3), and a filter cotton (4). The outer frame (1) is fixedly installed on the air inlet on one side of the screw air compressor housing by bolts. Switch magnetic bases (2) are fixedly installed on both sides of the bottom end of the outer frame (1). Two sets of through bolts (5) are provided on the inner side of the inner frame (3). The filter cotton (4) is fixedly installed on the inner side of the inner frame (3) by two sets of through bolts (5). A speed control mechanism (6) is provided on the side of the outer frame (1).

2. The quick-change device for filter cotton in a screw air compressor according to claim 1, characterized in that, The outer frame (1) is made of two-millimeter carbon steel plate with a length of 1200 mm and a width of 800 mm, and equilateral angle steel of 30 mm and 30 mm, welded into a rectangular structure of 1200 mm and 800 mm. The carbon steel plate has a hole with a diameter of 6 mm drilled on its long side of 1200 mm to fix it to the box body. The outer front of the outer frame (1) is made of two-millimeter carbon steel flat iron welded into a grid shape to form a whole.

3. A quick-change device for filter cotton in a screw air compressor according to claim 2, characterized in that, The switch magnetic base (2) is an NF-H flat bottom, and the maximum attraction force of the switch magnetic base (2) is thirty kilograms.

4. A quick-change device for filter cotton in a screw air compressor according to claim 3, characterized in that, The inner frame (3) is a square frame with a length of 1,195 mm by 795 mm, made of 25 mm x 25 mm equilateral angle iron. Two sets of holes with a diameter of 6 mm are drilled on the 795 mm vertical surface at both ends. Several square grids with a width of 10 mm are welded to one side of the back of the rectangular frame.

5. A quick-change device for filter cotton in a screw air compressor according to claim 4, characterized in that, The length of the filter cotton (4) is equal to the length of the inner frame (3), and the diameter of the threaded bolt (5) is six millimeters.

6. A quick-change device for filter cotton in a screw air compressor according to claim 5, characterized in that, The speed control mechanism (6) includes a connecting frame (61), which is fixedly connected to the side of the inner frame (3). A roller (62) is rotatably connected to the inner side of the connecting frame (61). A circular groove (63) is opened on the surface of the roller (62). A telescopic spring (64) is provided inside the circular groove (63). A resistance block (65) is elastically connected inside the circular groove (63) through the telescopic spring (64).

7. A quick-change device for filter cotton in a screw air compressor according to claim 6, characterized in that, The top of the roller (62) is on the same horizontal plane as the top of the inner frame (3), and the resistance block (65) is initially completely inside the circular groove (63).

8. A quick-change device for filter cotton in a screw air compressor according to claim 7, characterized in that, The elastic force of the telescopic spring (64) is greater than the weight of the resistance block (65), and the end of the resistance block (65) away from the telescopic spring (64) is uneven.

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