Two-stage compression screw air compressor

Abstract

The application discloses a double-stage compression screw air compressor, which comprises a base, an air compressor assembly, a transmission assembly and a driving assembly are arranged on the upper end face of the base, the air compressor assembly comprises two supports fixed on the upper end face of the base, air compressor housings are fixed on the upper end faces of the two supports, two screw rods are rotatably arranged in the inner cavities of the air compressor housings, and upper cover bodies are arranged on the upper end faces of the air compressor housings through bolts. In the application, the double-stage air compressor is composed of two oppositely arranged air compressors, a plurality of driven gears are arranged on one side of each of the two air compressors, a driving gear is arranged on the surface of a moving rotating rod, the driving gears with different diameters are engaged with the plurality of driven gears, the rotating speed of the two air compressors can be controlled and adjusted, the air pressure of the air compressor can be adjusted, the air compressor can be adapted to different working environments, the air pressure of the air compressor can be adjusted, the gas can be compressed to a proper pressure in the low-pressure stage and then sent to the high-pressure stage, and the compression efficiency of the pressure stage is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air compressor equipment, in particular to a two-stage compression screw air compressor. BACKGROUND

[0002] A two-stage compression screw air compressor is a compression device used to produce high-pressure gas. It uses two levels of screw compressors for continuous compression of gas to achieve higher outlet pressure. Specifically, the two-stage compression screw air compressor is composed of two screw compressors, divided into low-pressure and high-pressure stages. In the low-pressure stage, the screw compressor compresses the inlet gas to a lower intermediate pressure. Then, the intermediate pressure gas is sent to the high-pressure stage for further compression by the second screw compressor, resulting in higher outlet pressure.

[0003] The patent document with publication number CN216767699U discloses an ultra-energy-saving two-stage compression permanent magnet variable frequency air compressor, which includes an outer box, a base, a filter screen, a box door, a controller, and a radiator.

[0004] In the above device, although the radiator is moved regularly up and down and left and right by the motor, it can effectively cool the box and save energy. However, the rotational speed of the two-stage air compressor cannot be adjusted, making it impossible to adjust the air pressure of the two-stage air compressor. Moreover, the air compressor does not have an emergency stop function and does not have a safer operation mode. SUMMARY

[0005] The present application provides a two-stage compression screw air compressor, which includes a base, an air compressor assembly, a transmission assembly, and a drive assembly on the upper end surface of the base. The air compressor assembly includes two brackets fixed to the upper end surface of the base, two air compressor housings fixed to the upper end surface of the two brackets, two screw rods rotatably installed in the inner cavity of the air compressor housing, an upper cover body assembled on the upper end surface of the air compressor housing through bolts, an air inlet pipe embedded on the upper end surface of the upper cover body, an air outlet pipe embedded and installed on one end of the air compressor housing, and a multi-stage driven gear installed on one end of the screw rod through the air compressor housing.

[0006] The transmission assembly includes a support seat fixed to the upper end surface of the base, a rotating rod rotatably installed in the inner cavity of the support seat, a plurality of threaded holes opened on the surface of the rotating rod, a plurality of sleeve pipes sleeved on the surface of the rotating rod, a clamping groove fixed to one end of the rotating rod through the support seat, a plurality of driving gears fixed to the surface of the sleeve pipe, and a hand screw bolt sleeved on the surface of the sleeve pipe.

[0007] The driving assembly comprises a guide rail fixed to the upper end surface of the base, a sliding sleeve is sleeved on the surface of the guide rail to slide, a moving seat is fixed to the upper end surface of the sliding sleeve, an air compressor motor is fixed to the upper end surface of the moving seat, a clamping plate is fixed to the output end of the air compressor motor, a screw rod is rotatably installed on the upper end surface of the base, a servo motor is fixed to one side of the upper end surface of the base and is in transmission connection with the screw rod, and a ball nut is fixed to the bottom end of the moving seat and is in thread engagement with the surface of the screw rod.

[0008] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0009] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0010] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0011] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0012] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0013] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0014] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0015] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0016] Further, the plurality of driving gears are different in diameter, and the driving gears and the rotating rod are movably connected through the sleeve.

[0017] The present application has the following advantages over the prior art:

[0018] 1、The double-stage air compressor in the application is composed of two oppositely arranged air compressors, and each of the two air compressors is provided with a plurality of driven gears, a driving gear is arranged on the surface of a rotating rod, driving gears with different diameters are engaged with the plurality of driven gears, the rotating speed of the two air compressors can be controlled and adjusted, the air pressure of the air compressor can be adjusted, the air compressor can be adapted to different working environments, the air pressure of the air compressor can be adjusted, the gas can be compressed to a suitable pressure in the low-pressure stage and then sent to the high-pressure stage, the compression efficiency of the pressure stage is improved, and the problems in the background art are solved.

[0019] 2、The linear movement of the moving seat can be realized by rotating the output end of the servo motor, the moving seat can drive the air compressor motor to move, the assembly or separation between the clamping plate and the clamping groove can be realized, the output end of the air compressor motor can be separated from the transmission assembly, the power source of the air compressor can be quickly cut off, the function of quickly stopping the equipment is achieved, the air compressor can be prevented from continuing to work when the air compressor is in danger, and the operation is safer.

[0020] 3、The air compressor shell can be exposed by conveniently disassembling the air compressor shell from the upper cover body, so that the air compressor can be maintained and repaired later.

[0021] Of course, it is not necessary for any product implementing the present application to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0023] Figure 1 It is a front view structural schematic diagram of the two-stage compression screw air compressor in the present application.

[0024] Figure 2 It is a structural schematic diagram of the air compressor assembly in the present application.

[0025] Figure 3 It is a structural schematic diagram of the separation of the air compressor shell and the upper cover body in the present application.

[0026] Figure 4 It is a structural schematic diagram of the transmission assembly in the present application.

[0027] Figure 5 It is a structural schematic diagram of the driving assembly in the present application.

[0028] In the figure: 1, base; 2, air compressor assembly; 201, support; 202, air compressor shell; 203, screw; 204, upper cover body; 205, air inlet pipe; 206, air outlet pipe; 207, multi-stage driven gear; 3, transmission assembly; 301, support seat; 302, rotating rod; 303, threaded hole; 304, clamping groove; 305, sleeve; 306, driving gear; 307, hand screw bolt; 4, driving assembly; 401, guide rail; 402, sliding sleeve; 403, moving seat; 404, air compressor motor; 405, clamping plate; 406, lead screw; 407, servo motor; 408, ball nut. DETAILED DESCRIPTION

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-5 As shown, a two-stage compression screw air compressor includes a base 1. An air compressor assembly 2, a transmission assembly 3, and a drive assembly 4 are arranged on the upper surface of the base 1. The air compressor assembly 2 includes two brackets 201 fixed to the upper surface of the base 1. An air compressor housing 202 is fixed to the upper surface of each of the two brackets 201. Two screws 203 are rotatably installed inside the air compressor housing 202. An upper cover 204 is bolted to the upper surface of the air compressor housing 202. An air inlet pipe 205 is fitted into the upper surface of the upper cover 204. An exhaust pipe 206 is fitted into one end of the air compressor housing 202. One end of the screw 203 passes through the air compressor housing 202 and a multi-stage driven gear 207 is installed at the other end.

[0031] The transmission assembly 3 includes a support base 301 fixed to the upper surface of the base 1. A rotating rod 302 is rotatably mounted in the inner cavity of the support base 301. Multiple threaded holes 303 are opened on the surface of the rotating rod 302. Multiple sleeves 305 are sleeved on the surface of the rotating rod 302. One end of the rotating rod 302 passes through the support base 301 and is fixed with a slot 304. Multiple drive gears 306 are fixed on the surface of each of the multiple sleeves 305. Hand-tightening bolts 307 are sleeved on the surface of the sleeves 305.

[0032] The drive assembly 4 includes a guide rail 401 fixed to the upper surface of the base 1, a sliding sleeve 402 slidably sleeved on the surface of the guide rail 401, a movable seat 403 fixed on the upper surface of the sliding sleeve 402, an air compressor motor 404 fixed on the upper surface of the movable seat 403, a clamping plate 405 fixed at the output end of the air compressor motor 404, a lead screw 406 rotatably mounted on the upper surface of the base 1, a servo motor 407 connected to the lead screw 406 for transmission fixed on one side of the upper surface of the base 1, and a ball nut 408 that engages with the thread on the surface of the lead screw 406 fixed at the bottom end of the movable seat 403.

[0033] Manually pull the drive gear 306 so that it moves on the surface of the rotating rod 302 through the sleeve 305, so that one of the smaller diameter drive gears 306 meshes with a multi-stage driven gear 207, and the other larger diameter drive gear 306 meshes with another multi-stage driven gear 207. Then manually turn the hand-tightening bolt 307 to fit it with the threaded hole 303, thereby fixing the sleeve 305 to the surface of the rotating rod 302.

[0034] At this time through the servo motor 407 output end movement, make it drive the screw rod 406 rotation, screw rod 406 rotation surface ball nut 408 movement, ball nut 408 drive the movement of the seat 403, make it through the bottom end of the sleeve 402 in the surface of the guide rail 401 sliding, the movement of the seat 403 drive the air compressor motor 404 fixed at the upper end of the movement, the air compressor motor 404 one end of the card plate 405 movement plug in the card slot 304 inner cavity;

[0035] At this time through the air compressor motor 404 output end rotation, drive the card plate 405 rotation, the surface of the card slot 304 carding card slot 304 drive the rotation of the rotating rod 302, the surface of the driving gear 306 installed on the rotating rod 302 rotation, make it drive the two multi stage driven gear 207 rotation;

[0036] Two multi stage driven gear 207 due to the different diameter of the driving gear 306 meshing, so the rotating speed is different, drive the two screw rod 203 rotation in the air compressor shell 202 inner cavity, two screw rod 203 rotation, the gas from a air compressor inlet pipe 205 into, and then compressed gas from the exhaust pipe 206, to the air compressor inlet pipe 205 another, through the more rapid rotation of the air compressor further compression of gas.

[0037] Among them, the diameter of the driving gear 306 is different, the driving gear 306 through the sleeve 305 and the surface of the rotating rod 302 between the movable structure.

[0038] Among them, the multi stage driven gear 207 and the driving gear 306 is in the same horizontal position, and the multi stage driven gear 207 and the driving gear 306 meshing connection.

[0039] Among them, the hand screw bolt 307 and the threaded hole 303 screw thread engagement, each sleeve 305 around the installation of four hand screw bolt 307, make it can be between the rotating rod 302 stable assembly.

[0040] Among them, the sleeve 305 through the hand screw bolt 307, threaded hole 303 and the rotating rod 302 between the assembly structure, the sleeve 305 in the surface of the rotating rod 302 movement can adjust the position of the driving gear 306.

[0041] Among them, the movement of the seat 403 through the ball nut 408 and the screw rod 406 between the linear movement structure.

[0042] Among them, the movement of the seat 403 through the sleeve 402 and the guide rail 401 between the sliding structure.

[0043] Among them, the card plate 405 and the card slot 304 inner cavity carding.

[0044] The rotating rod 302 is connected with the air compressor motor 404 through the clamping groove 304 and the clamping plate 405.

[0045] The two air compressor housings 202 are connected through the air inlet pipe 205 and the air outlet pipe 206, and one air compressor housing 202 is used for compressing gas once, and the gas is compressed twice through the air inlet pipe 205 and the air outlet pipe 206.

[0046] The working method of the double-stage compression screw air compressor:

[0047] First, manually pull the driving gear 306, and move the driving gear 306 on the surface of the rotating rod 302 through the sleeve 305, so that one driving gear 306 with a smaller diameter is engaged with one multi-stage driven gear 207, and the other driving gear 306 with a larger diameter is engaged with the other multi-stage driven gear 207. Then, manually rotate the hand screw 307 to fit the threaded hole 303, so as to fix the sleeve 305 on the surface of the rotating rod 302. At this time, the output end of the servo motor 407 is moved to drive the screw rod 406 to rotate. The ball nut 408 on the surface of the screw rod 406 moves, and the ball nut 408 drives the moving seat 403 to slide on the surface of the guide rail 401 through the sliding sleeve 402 at the bottom. The moving seat 403 drives the air compressor motor 404 fixed at the upper end to move. The clamping plate 405 at one end of the air compressor motor 404 is inserted into the inner cavity of the clamping groove 304. At this time, the air compressor motor 404 rotates at the output end, drives the clamping plate 405 to rotate, the clamping groove 304 on the surface of the clamping plate 405 rotates, the clamping groove 304 drives the rotating rod 302 to rotate, the driving gear 306 installed on the surface of the rotating rod 302 rotates, drives the two multi-stage driven gears 207 to rotate, and the two multi-stage driven gears 207 rotate at different speeds due to the engagement with the driving gears 306 with different diameters, drives the two screw rods 203 in the inner cavity of the air compressor housing 202 to rotate. When the two screw rods 203 rotate, the gas is sucked from one air compressor air inlet pipe 205, and the compressed gas is sent to the other air compressor through the air outlet pipe 206 and the air inlet pipe 205. The gas is further compressed by the air compressor rotating faster, and thus the working principle of the present application is completed.

[0048] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, and the present application is not limited to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and use the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A two-stage compression screw air compressor, comprising a base (1), characterized in that, The upper surface of the base (1) is provided with an air compressor assembly (2), a transmission assembly (3) and a drive assembly (4). The air compressor assembly (2) includes two brackets (201) fixed to the upper surface of the base (1). An air compressor housing (202) is fixed to the upper surface of each of the two brackets (201). Two screws (203) are rotatably installed in the inner cavity of the air compressor housing (202). An upper cover (204) is bolted to the upper surface of the air compressor housing (202). An air inlet pipe (205) is fitted into the upper surface of the upper cover (204). An exhaust pipe (206) is fitted into one end of the air compressor housing (202). A multi-stage driven gear (207) is installed at one end of the screw (203) through the air compressor housing (202). The transmission assembly (3) includes a support base (301) fixed to the upper surface of the base (1). A rotating rod (302) is rotatably mounted in the inner cavity of the support base (301). The rotating rod (302) has multiple threaded holes (303) on its surface. Multiple sleeves (305) are fitted onto the surface of the rotating rod (302). One end of the rotating rod (302) passes through the support base (301) and is fixed with a slot (304). Multiple drive gears (306) are fixed onto the surfaces of the multiple sleeves (305). A hand-tightening bolt (307) is fitted onto the surface of the sleeves (305). The drive assembly (4) includes a guide rail (401) fixed to the upper surface of the base (1), a sliding sleeve (402) slidably sleeved on the surface of the guide rail (401), a movable seat (403) fixed on the upper surface of the sliding sleeve (402), an air compressor motor (404) fixed on the upper surface of the movable seat (403), a clamping plate (405) fixed at the output end of the air compressor motor (404), a lead screw (406) rotatably mounted on the upper surface of the base (1), a servo motor (407) connected to the lead screw (406) is fixed on one side of the upper surface of the base (1), and a ball nut (408) threadedly engaged with the surface of the lead screw (406) is fixed at the bottom end of the movable seat (403). The card plate (405) engages with the inner cavity of the card slot (304) to transmit the power of the air compressor motor (404) to the rotating rod (302); and the driving gear (306) meshes with the multi-stage driven gear (207) to drive the screw (203) to rotate.

2. The two-stage compression screw air compressor according to claim 1, characterized in that, The multiple drive gears (306) have different diameters, and the drive gears (306) form a movable structure between the sleeve (305) and the surface of the rotating rod (302).

3. The two-stage compression screw air compressor according to claim 1, characterized in that, The multi-stage driven gear (207) and the driving gear (306) are at the same horizontal position.

4. The two-stage compression screw air compressor according to claim 1, characterized in that, The hand-tightening bolt (307) engages with the threaded hole (303).

5. The two-stage compression screw air compressor according to claim 1, characterized in that, The sleeve (305) is assembled with the hand-tightened bolt (307), the threaded hole (303) and the rotating rod (302).

6. The two-stage compression screw air compressor according to claim 1, characterized in that, The movable seat (403) forms a linearly movable structure between the ball nut (408) and the lead screw (406).

7. The two-stage compression screw air compressor according to claim 1, characterized in that, The movable seat (403) forms a sliding structure with the guide rail (401) through the sliding sleeve (402).

8. The two-stage compression screw air compressor according to claim 1, characterized in that, The rotating rod (302) forms a transmission structure with the air compressor motor (404) through the slot (304) and the plate (405).

9. The two-stage compression screw air compressor according to claim 1, characterized in that, The two air compressor housings (202) are connected to the exhaust pipe (206) via the intake pipe (205).

Images