High-pressure air compressor with screw piston pumps connected in series

Abstract

The invention relates to the technical field of air compressors, and provides a screw piston pump series connection high-pressure air compressor which comprises a screw air compressor body and a piston air compressor body, a screw air compressor motor is fixedly installed at the front end of the screw air compressor body, and an air inlet pipe, an air conveying pipe and a blockage clearing mechanism are arranged at the top of the screw air compressor body; a dust screen is arranged in the air inlet pipe, a piston air compressor motor is fixedly mounted on the side face of the piston air compressor main body, and the screw air compressor main body, the piston air compressor motor, the piston pump and the unblocking mechanism are arranged, so that the effect that a screw and the piston pump are connected in series to achieve high compression of air is achieved; and meanwhile, in the process that air enters the screw air compressor main body through the air inlet pipe, a driving gear, a driven gear, a hydraulic bin and other assemblies are matched to drive a row brush to repeatedly and transversely move to scrape dust and batting attached to the surface of the dustproof net, and the situation that the dustproof net is blocked to affect entering of the air is prevented.

Description

Technical Field

[0001] The present invention relates to an air compressor, in particular to a screw piston pump connected in series with a high-pressure air compressor. Background Art

[0002] An air compressor is a mechanical device used to compress gas, converting mechanical energy into gas pressure energy. Similar in structure to a water pump, air compressors are mostly reciprocating piston, rotary vane, or rotary screw.

[0003] Currently, the air compressors on the market are mainly screw air compressors, which have relatively limited technical performance and are not suitable for high-pressure scenarios. They are limited by rotor stiffness and bearing life, and the exhaust pressure usually does not exceed 3.0MPa (about 30bar), which is difficult to meet the demand for high-pressure gas (such as in some chemical and energy fields). In addition, the air inlet is prone to blockage, so there is room for improvement. Summary of the Invention

[0004] The present invention provides a screw piston pump connected in series with a high-pressure air compressor.

[0005] The technical solution of the present invention is as follows: a screw piston pump is connected in series with a high-pressure air compressor, comprising a screw air compressor main body and a piston air compressor main body, the front end of the screw air compressor main body is fixedly installed with a screw air compressor motor, the top of the screw air compressor main body is provided with an air inlet pipe, an air delivery pipe and a clearing mechanism, the inside of the air inlet pipe is provided with a dustproof net, the side of the piston air compressor main body is fixedly installed with a piston air compressor motor, the top of the piston air compressor main body is provided with an air outlet pipe, the top of the screw air compressor main body; the clearing mechanism comprises a driving gear, a rotating rod, a bracket, a transmission belt, a hydraulic warehouse and a connecting frame, the driving gear is fixedly connected to the output shaft of the screw air compressor motor, the rotating rod is rotatably connected to the front end of the screw air compressor main body, the front end of the rotating rod is fixedly connected with a driven gear, the bracket, hydraulic warehouse and connecting frame are all fixedly connected to the top of the screw air compressor main body, and the side of the bracket passes through The cam is connected to the gear train by a gearbox and a gearbox, and the cam is connected to the gear train by a gear train, and the cam is connected to the gear train by a gearbox, and the cam is connected to the gear train by a gearbox, and the cam is connected to the gear train.

[0006] One end of the air supply pipe away from the screw air compressor body passes through and is fixedly connected to the piston air compressor motor. Multiple groups of piston pumps are provided on the top of the piston air compressor body. The air compressed in the screw air compressor body enters the piston air compressor motor through the air supply pipe, and then the multiple groups of piston pumps compress the compressed air again.

[0007] The driving gear is meshed with the driven gear, and the diameter of the driven gear is larger than that of the driving gear. The rotation of the driving gear drives the driven gear to rotate, and the speed of the driven gear rotating one circle is relatively slow.

[0008] The rotating gear is an incomplete gear, and the teeth on the rotating gear are initially engaged with the teeth on the gear rod. When the rotating gear rotates and its upper teeth are engaged with the teeth on the gear rod, the gear rod is driven to move downward.

[0009] The end of the piston rod B away from the hydraulic chamber is fixedly connected to the exhaust brush, and a knocking mechanism is provided on the inner side of the bracket. When the piston rod B moves to the left, the exhaust brush will move to the left.

[0010] The knocking mechanism includes a bevel gear A and a fixed plate, the bevel gear A is fixedly connected to the surface of the cross bar, the fixed plate is fixedly connected to the top of the screw air compressor body, the side of the fixed plate is rotatably connected to a long rod, the side of the long rod is fixedly connected to the bevel gear B, the surface of the long rod is fixedly connected to an extrusion block, the side of the fixed plate is fixedly connected to an air pressure chamber, one end of the air pressure chamber is provided with an air bag, and the other end of the air pressure chamber has an internal piston slidingly connected to a knocking rod. By providing a knocking mechanism, the dust and fluff adhered to the surface of the dustproof net are scraped off by repeatedly moving the brush horizontally. The knocking rod will also be driven to move downward repeatedly through the cooperation of components such as the bevel gear A, the bevel gear B, the extrusion block, and the air pressure chamber, and the knocking rod knocks the brush moved to the leftmost end to ensure that the dust and fluff adhered to the brush can fall off.

[0011] The airbag is in an expanded state in an initial state, and the squeezing blocks are provided in two groups. When the squeezing blocks rotate along with the long rod, they squeeze the airbag.

[0012] The bottom of the knocking rod is higher than the top of the brush in an initial state, and a lubrication mechanism is provided on the top of the fixing plate.

[0013] The lubrication mechanism includes an arc-shaped block, which is fixedly connected to the top of the fixed plate. An oil storage tank is provided inside the arc-shaped block, and a ball is provided at the bottom of the oil storage tank. An oil filling pipe passes through and is fixedly connected to the top of the oil storage tank, and a self-sealing component is provided inside the oil filling pipe.

[0014] The self-sealing component includes a rod body, which is fixedly connected to the top of the oil storage tank, a fixed ring fixedly connected to the surface of the rod body, a compression spring fixedly connected to the top of the fixed ring, a sliding ring slidably connected to the surface of the rod body, a connecting rod fixedly connected to the top of the sliding ring, a pressure ring fixedly connected to the top of the connecting rod, and an end of the compression spring away from the fixed ring is fixedly connected to the bottom of the sliding ring. By providing a lubrication mechanism, the lubricating oil in the oil storage cavity can be applied to the extrusion block through the cooperation of components such as the arc block and the ball, thereby lubricating the extrusion block, reducing the wear between the extrusion block and the airbag, and improving the service life.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention is provided with a screw air compressor body, a piston air compressor motor, a piston pump and a blockage clearing mechanism, thereby achieving the effect of highly compressing the air by connecting the screw and the piston pump in series. At the same time, when the air enters the screw air compressor body through the air intake pipe, the driving gear, the driven gear, the hydraulic chamber and other components will drive the exhaust brush to move horizontally repeatedly to scrape off the dust and lint adhered to the surface of the dustproof net, thereby preventing the dustproof net from being blocked and affecting the entry of air.

[0016] 2. The present invention is provided with a knocking mechanism, so that in the process of repeatedly moving the exhaust brush horizontally to scrape off the dust and lint adhering to the surface of the dustproof net, the knocking rod will be driven to move downward repeatedly through the cooperation of components such as bevel gear A, bevel gear B, extrusion block, and air pressure chamber, and the knocking rod will knock the exhaust brush moved to the leftmost end to ensure that the dust and lint adhering to the exhaust brush can fall off.

[0017] 3. The present invention is provided with a lubricating mechanism, so that in the process that the extrusion block follows the long rod to rotate and repeatedly squeezes the airbag, the lubricating oil in the oil storage cavity can be applied to the extrusion block through the cooperation of components such as the arc block and the ball, thereby lubricating the extrusion block, reducing the wear between the extrusion block and the airbag, and improving the service life.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a three-dimensional front view of the overall structure of the present invention; Figure 2 It is a three-dimensional back view of the overall structure of the present invention; Figure 3 This is a three-dimensional side view of the blockage clearing mechanism structure of the present invention; Figure 4 This is a three-dimensional front view of the blockage clearing mechanism of the present invention; Figure 5 A three-dimensional schematic diagram of the knocking mechanism structure of the present invention; Figure 6 A three-dimensional schematic diagram of the lubrication mechanism structure of the present invention; Figure 7 A three-dimensional cross-sectional view of the lubrication mechanism structure of the present invention; Figure 8 It is a three-dimensional cross-sectional view of the arc block structure of the present invention.

[0021] Figure: 1. Screw air compressor body; 2. Screw air compressor motor; 3. Air inlet pipe; 4. Air delivery pipe; 5. Piston air compressor body; 6. Piston air compressor motor; 7. Piston pump; 8. Air outlet pipe; 9. Dust screen; 10. Blockage removal mechanism; 101. Driving gear; 102. Rotating rod; 103. Driven gear; 104. Bracket; 105. Crossbar; 106. Transmission belt; 107. Hydraulic chamber; 108. Piston rod A; 109. Gear rod; 1010. Piston rod B; 1011. Connecting frame; 1012. Sliding rod; 1013. Brush; 1014. Return spring; 1015, rotating gear; 11, knocking mechanism; 111, bevel gear A; 112, fixed plate; 113, long rod; 114, extrusion block; 115, air pressure chamber; 116, air bag; 117, knocking rod; 118, bevel gear B; 12, lubrication mechanism; 121, arc block; 122, oil storage tank; 123, ball bearing; 124, oil filling pipe; 125, self-sealing component; 1251, rod body; 1252, fixing ring; 1253, sliding ring; 1254, connecting rod; 1255, pressure ring; 1256, compression spring. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1 like Figures 1 to 8As shown, this embodiment proposes a screw piston pump series high-pressure air compressor, including a screw air compressor body 1 and a piston air compressor body 5, the front end of the screw air compressor body 1 is fixedly installed with a screw air compressor motor 2, the top of the screw air compressor body 1 is provided with an air intake pipe 3, an air delivery pipe 4 and a clearing mechanism 10, the interior of the air intake pipe 3 is provided with a dustproof net 9, the side of the piston air compressor body 5 is fixedly installed with a piston air compressor motor 6, the end of the air delivery pipe 4 away from the screw air compressor body 1 is penetrated and fixedly connected to the piston air compressor motor 6, the top of the piston air compressor body 5 is provided with multiple groups of piston pumps 7, the compressed air in the screw air compressor body 1 enters the piston air compressor through the air delivery pipe 4 The compressor motor 6 is filled with compressed air, and then multiple groups of piston pumps 7 compress the compressed air again. The top of the piston air compressor body 5 is provided with an air outlet pipe 8, and the top of the screw air compressor body 1; the clearing mechanism 10 includes a driving gear 101, a rotating rod 102, a bracket 104, a transmission belt 106, a hydraulic warehouse 107 and a connecting frame 1011. The driving gear 101 is fixedly connected to the output shaft of the screw air compressor motor 2, and the rotating rod 102 is rotatably connected to the front end of the screw air compressor body 1. The front end of the rotating rod 102 is fixedly connected to the driven gear 103. The driving gear 101 is meshed with the driven gear 103, and the diameter of the driven gear 103 is larger than that of the driving gear 101. The rotation of wheel 101 will drive the driven gear 103 to rotate, and the speed of the driven gear 103 rotating one circle is slow. The bracket 104, the hydraulic chamber 107 and the connecting frame 1011 are all fixedly connected to the top of the screw air compressor body 1. The side of the bracket 104 is penetrated and rotatably connected with a cross bar 105. The surface of the cross bar 105 is fixedly connected with a rotating gear 1015. The cross bar 105 is connected to the rotating rod 102 through a transmission belt 106. The internal piston at one end of the hydraulic chamber 107 is slidably connected to the piston rod A108. The top of the piston rod A108 is fixedly connected with a gear rod 109. The rotating gear 1015 is an incomplete gear, and the teeth on the rotating gear 1015 are in the initial state. The lower teeth are engaged with the teeth on the gear rod 109. When the rotating gear 1015 rotates and its upper teeth are engaged with the teeth on the gear rod 109, the gear rod 109 will be driven to move downward. The internal piston at the other end of the hydraulic warehouse 107 is slidably connected to the piston rod B1010, and the inner side of the connecting frame 1011 is fixedly connected to the slide rod 1012. The surface of the slide rod 1012 is sleeved with a return spring 1014, and the surface of the slide rod 1012 is slidably connected to the row brush 1013. The end of the piston rod B1010 away from the hydraulic warehouse 107 is fixedly connected to the row brush 1013. A knocking mechanism 11 is provided on the inner side of the bracket 104. The movement of the piston rod B1010 to the left will drive the row brush 1013 to move to the left.

[0024] In this embodiment, the screw air compressor motor 2, the piston air compressor motor 6 and the piston pump 7 are turned on, and the external air enters the screw air compressor body 1 through the air inlet pipe 3 for compression. The dustproof net 9 can prevent dust and lint from entering, and the compressed air in the screw air compressor body 1 enters the piston air compressor motor 6 through the air supply pipe 4, and then multiple groups of piston pumps 7 compress the compressed air again, and finally the high-pressure air is discharged through the air outlet pipe 8, thereby achieving the effect of highly compressing the air by connecting the screw and the piston pump 7 in series. When the screw air compressor motor 2 is turned on, its output shaft will drive the driving gear 101 to rotate, and the rotation of the driving gear 101 will drive the driven gear 103 to rotate, and the speed of the driven gear 103 rotating one circle is slow. The rotation of the driven gear 103 drives the rotating rod 102 to rotate, and the rotation of the rotating rod 102 will drive the cross bar 105 to rotate through the transmission belt 106, and the rotation of the cross bar 105 will The rotating gear 1015 is driven to rotate. When the rotating gear 1015 rotates and its upper teeth engage with the teeth on the gear rod 109, the gear rod 109 is driven to move downward. The downward movement of the gear rod 109 drives the piston rod A108 to move downward. The downward movement of the piston rod A108 drives the piston rod B1010 to move left through the hydraulic pressure in the hydraulic chamber 107. The movement of the piston rod B1010 to the left drives the brush 1013 to move left, and the return spring 1014 is compressed. When the rotating gear 1015 rotates to the toothless part and disengages from the gear rod 109, the return spring 1014 rebounds and drives the piston rod B1010 and the piston rod B1010 to move right and restore. The piston rod A108 drives the gear rod 109 to move upward and restore, thus forming a cycle. The dust and lint adhering to the surface of the dustproof net 9 are removed by the repeated lateral movement of the brush 1013 to prevent the dustproof net 9 from being blocked and affecting the entry of air.

[0025] Example 2 like Figures 1 to 8As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a knocking mechanism 11, including a bevel gear A111 and a fixed plate 112, the bevel gear A111 is fixedly connected to the surface of the cross bar 105, the fixed plate 112 is fixedly connected to the top of the screw air compressor body 1, the side of the fixed plate 112 is rotatably connected to a long rod 113, the side of the long rod 113 is fixedly connected to a bevel gear B118, the surface of the long rod 113 is fixedly connected to an extrusion block 114, the side of the fixed plate 112 is fixedly connected to an air pressure chamber 115, one end of the air pressure chamber 115 is provided with an air bag 116, the air bag 116 is in an expanded state in the initial state, the extrusion block 114 is provided in two groups, the extrusion block 114 will squeeze the air bag 116 when rotating with the long rod 113, the other end of the air pressure chamber 115 is slidably connected to the internal piston of the internal piston 117, the bottom of the knocking rod 117 is initially higher than the top of the brush 1013, and the top of the fixed plate 112 is set There is a lubricating mechanism 12, which includes an arc block 121, which is fixedly connected to the top of the fixed plate 112, an oil storage tank 122 is provided inside the arc block 121, a ball 123 is provided at the bottom of the oil storage tank 122, an oil filling pipe 124 is passed through the top of the oil storage tank 122 and is fixedly connected, and a self-sealing component 125 is provided inside the oil filling pipe 124, and the self-sealing component 125 includes a rod body 1251, and the rod body 1251 is connected to the oil storage tank 122. The top of the rod body 1251 is fixedly connected, the surface of the rod body 1251 is fixedly connected with a fixing ring 1252, the top of the fixing ring 1252 is fixedly connected with a compression spring 1256, the surface of the rod body 1251 is slidably connected with a sliding ring 1253, the top of the sliding ring 1253 is fixedly connected with a connecting rod 1254, the top of the connecting rod 1254 is fixedly connected with a pressure ring 1255, and the end of the compression spring 1256 away from the fixing ring 1252 is fixedly connected to the bottom of the sliding ring 1253.

[0026] In this embodiment, the rotation of the crossbar 105 will also drive the bevel gear A111 to rotate, the rotation of the bevel gear A111 will drive the bevel gear B118 to rotate, the rotation of the bevel gear B118 will drive the long rod 113 to rotate, the rotation of the long rod 113 will drive the extrusion block 114 to rotate and repeatedly squeeze the airbag 116. When the airbag 116 is squeezed, the air pressure in the airbag 116 enters the air pressure chamber 115 to push the knocking rod 117 to move downward. The knocking rod 117 moves downward and hits the brush 1013 when it moves to the far left end. The knocking of the knocking rod 117 ensures that the dust and fluff adhering to the brush 1013 can fall off, and when the airbag 116 rebounds, the air pressure in the air pressure chamber 115 drives the knocking rod 117 to move upward and restore. When the extrusion block 114 rotates with the long rod 113, it will also contact the ball 123 at the bottom of the arc block 121. When the surface of the extrusion block 114 is dry When the oil storage tank 122 is filled with oil, the cannula is inserted into the oil filling pipe 124, and the cannula contacts the pressure ring 1255, which drives the pressure ring 1255 to move downward. The downward movement of the pressure ring 1255 drives the sliding ring 1253 to move downward through the connecting rod 1254 to open the oil filling pipe 124, and the compression spring 1014 is compressed. When the oil filling is completed, the compression spring 1014 rebounds and drives the sliding ring 1253, the connecting rod 1254 and the pressure ring 1255 to move upward to restore. At this time, the sliding ring 1253 re-closes the oil filling pipe 124 to prevent dust and debris from entering.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screw piston pump connected in series with a high-pressure air compressor, characterized in that: It comprises a screw air compressor body (1) and a piston air compressor body (5), wherein a screw air compressor motor (2) is fixedly mounted on the front end of the screw air compressor body (1), an air inlet pipe (3), an air delivery pipe (4) and a clearing mechanism (10) are provided on the top of the screw air compressor body (1), a dustproof net (9) is provided inside the air inlet pipe (3), a piston air compressor motor (6) is fixedly mounted on the side of the piston air compressor body (5), an air outlet pipe (8) is provided on the top of the screw air compressor body (1); The blockage clearing mechanism (10) comprises a driving gear (101), a rotating rod (102), a bracket (104), a transmission belt (106), a hydraulic chamber (107) and a connecting frame (1011), wherein the driving gear (101) is fixedly connected to the output shaft of the screw air compressor motor (2), the rotating rod (102) is rotatably connected to the front end of the screw air compressor body (1), the front end of the rotating rod (102) is fixedly connected to the driven gear (103), the bracket (104), the hydraulic chamber (107) and the connecting frame (1011) are all fixedly connected to the top of the screw air compressor body (1), the side of the bracket (104) is penetrated by and rotatably connected to a cross bar (105), the cross bar (105) is connected to the front end of the screw air compressor body (1), and the cross bar (105) is connected to the front end of the screw air compressor body (1). The surface of the rod (105) is fixedly connected to a rotating gear (1015), the crossbar (105) is transmission-connected to the rotating rod (102) via a transmission belt (106), the internal piston at one end of the hydraulic chamber (107) is slidably connected to a piston rod A (108), the top of the piston rod A (108) is fixedly connected to a gear rod (109), the internal piston at the other end of the hydraulic chamber (107) is slidably connected to a piston rod B (1010), the inner side of the connecting frame (1011) is fixedly connected to a sliding rod (1012), the surface of the sliding rod (1012) is sleeved with a return spring (1014), and the surface of the sliding rod (1012) is slidably connected to a row brush (1013).

2. A screw piston pump connected in series with a high-pressure air compressor according to claim 1, characterized in that: One end of the air delivery pipe (4) away from the screw air compressor body (1) passes through and is fixedly connected to the piston air compressor motor (6), and a plurality of piston pumps (7) are provided on the top of the piston air compressor body (5).

3. A screw piston pump connected in series with a high-pressure air compressor according to claim 2, characterized in that: The driving gear (101) is meshed with the driven gear (103), and the diameter of the driven gear (103) is larger than that of the driving gear (101).

4. A screw piston pump connected in series with a high-pressure air compressor according to claim 3, characterized in that: The rotating gear (1015) is an incomplete gear, and the teeth on the rotating gear (1015) are initially engaged with the teeth on the gear rod (109).

5. The screw piston pump connected in series with a high-pressure air compressor according to claim 4, characterized in that: One end of the piston rod B (1010) away from the hydraulic chamber (107) is fixedly connected to the exhaust brush (1013), and a knocking mechanism (11) is provided on the inner side of the bracket (104).

6. A screw piston pump connected in series with a high-pressure air compressor according to claim 5, characterized in that: The knocking mechanism (11) includes a bevel gear A (111) and a fixed plate (112), wherein the bevel gear A (111) is fixedly connected to the surface of the cross bar (105), and the fixed plate (112) is fixedly connected to the top of the screw air compressor body (1). The side of the fixed plate (112) is rotatably connected to a long rod (113), and the side of the long rod (113) is fixedly connected to a bevel gear B (118). The surface of the long rod (113) is fixedly connected to an extrusion block (114). The side of the fixed plate (112) is fixedly connected to an air pressure chamber (115), and an air bag (116) is provided at one end of the air pressure chamber (115). The other end of the air pressure chamber (115) is slidably connected to a knocking rod (117) via an internal piston.

7. A screw piston pump connected in series with a high-pressure air compressor according to claim 6, characterized in that: The airbag (116) is in an expanded state in an initial state, and the squeezing blocks (114) are provided in two groups.

8. The screw piston pump connected in series with a high-pressure air compressor according to claim 7, characterized in that: In an initial state, the bottom of the knocking rod (117) is higher than the top of the row brush (1013), and a lubrication mechanism (12) is provided on the top of the fixing plate (112).

9. The screw piston pump connected in series with a high-pressure air compressor according to claim 8, characterized in that: The lubricating mechanism (12) comprises an arc block (121), the arc block (121) being fixedly connected to the top of the fixed plate (112), an oil storage tank (122) being provided inside the arc block (121), a ball bearing (123) being provided at the bottom of the oil storage tank (122), an oil filling pipe (124) passing through and fixedly connected to the top of the oil storage tank (122), and a self-sealing component (125) being provided inside the oil filling pipe (124).

10. A screw piston pump connected in series with a high-pressure air compressor according to claim 9, characterized in that: The self-sealing component (125) comprises a rod body (1251), the rod body (1251) is fixedly connected to the top of the oil storage tank (122), a fixed ring (1252) is fixedly connected to the surface of the rod body (1251), a compression spring (1256) is fixedly connected to the top of the fixed ring (1252), a sliding ring (1253) is slidably connected to the surface of the rod body (1251), a connecting rod (1254) is fixedly connected to the top of the sliding ring (1253), a pressure ring (1255) is fixedly connected to the top of the connecting rod (1254), and an end of the compression spring (1256) away from the fixing ring (1252) is fixedly connected to the bottom of the sliding ring (1253).

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