Direct-driven supercharged compression device

Abstract

The utility model relates to a direct-drive supercharged compression device. The direct-drive supercharged compression device comprises a power assembly, a compression assembly and a supercharging mechanism. The power assembly comprises a first power mechanism and an output shaft. The compression assembly comprises a reciprocating body, a rolling piece, a piston and a cylinder body. The two ends of the output shaft are respectively connected with a shaft head, and are respectively linked with a reciprocating body through the shaft heads. A guide groove is formed in the circumferential surface of the shaft head, the rolling piece located on the corresponding side is clamped in the guide groove, and when the shaft head rotates, the reciprocating body drives the piston to be compressed in the cylinder body in a reciprocating mode. The pressurizing mechanism comprises a second power mechanism and a turbine mechanism, and the second power mechanism is connected with the turbine mechanism; the turbine mechanism communicates with the cylinder bodies located on the two sides through pressurization pipelines correspondingly. Or, the turbine mechanism is communicated with the cylinder body on one side through a pressurizing pipeline, and the cylinder bodies on the two sides are communicated. According to the scheme, the turbine mechanism is driven by the second power mechanism for pressurization, so that primary pre-compression treatment on inlet gas is facilitated, and the compression effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a direct-drive supercharging compression device. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. Common compressors include crankshaft rocker compressors, crank-connecting rod compressors, or swash plate compressors, and the drive forms of the above compressors are to control the reciprocating motion of the eccentric structure to drive the reciprocating compression of the piston, thereby achieving cyclic compression of the fluid in the cylinder. However, the structural layout of the above compressors is relatively complex, the volume is large, and the compression effect on the fluid does not meet the preset requirements. Summary of the invention

[0003] Based on this, it is necessary to provide a direct-drive boost compression device to address the problems in related technologies where the compressor has a complex structural layout, a large volume, and the compression effect on the fluid does not meet the preset requirements.

[0004] A direct-drive supercharged compression device, comprising:

[0005] A power assembly, the power assembly comprising a first power mechanism and an output shaft, the output shaft is connected to the first power mechanism, and two ends of the output shaft extend toward two sides of the first power mechanism respectively, and the first power mechanism is used to drive the output shaft to rotate around its axis;

[0006] A compression assembly, the compression assembly comprising a reciprocating body, a rolling element, a piston and a cylinder body, the piston is arranged in the cylinder body, the rolling element is embedded in the reciprocating body, and the reciprocating body is connected to the piston;

[0007] The two ends of the output shaft are each connected to a shaft head, and are linked to the reciprocating body of the compression assembly through the shaft head; wherein the shaft head is provided with a guide groove along its circumferential surface, and the rolling element of the compression assembly located on the corresponding side is clamped in the guide groove, so that the shaft head is linked to the corresponding reciprocating body, and the track of the guide groove is configured as follows: when the shaft head rotates to make the rolling element move along the guide groove, the reciprocating body drives the piston to reciprocate and compress in the cylinder body;

[0008] A supercharging mechanism, wherein the supercharging mechanism includes a second power mechanism and a turbine mechanism, wherein the output end of the second power mechanism is connected to the turbine mechanism; the turbine mechanism is connected to the cylinder bodies located on both sides of the output shaft through a supercharging pipeline; or, the turbine mechanism is connected to the cylinder bodies located on one side of the output shaft through a supercharging pipeline, and the cylinder bodies located on both sides of the output shaft are connected.

[0009] In one embodiment, the number of the turbine mechanisms is two, namely a first-stage turbine mechanism and a second-stage turbine mechanism, and the output ends of the second power mechanism are connected to the first-stage turbine mechanism and the second-stage turbine mechanism respectively;

[0010] The first-stage turbine mechanism is connected to the cylinder body on one side, and the second-stage turbine mechanism is connected to the cylinder body on the other side; or, the first-stage turbine mechanism is connected to the second-stage turbine mechanism, and the second-stage turbine mechanism is connected to the cylinder body on one side.

[0011] In one embodiment, the trajectory of the guide groove is a closed curve that surrounds the shaft head, and the closed curve trajectory of the guide groove has crests and troughs, and the crests and troughs are distributed on the circumferential surface of the shaft head at intervals around the axial direction of the shaft head.

[0012] In one embodiment, the piston has a first compression surface and a second compression surface that are opposite to each other, the first compression surface and an inner wall of one side of the cylinder body constitute a first working side, and the second compression surface and an inner wall of the other side of the first cylinder body constitute a second working side, and when the shaft head rotates to cause the rolling element to move along the guide groove, the reciprocating body drives the piston to alternately reciprocate and compress the first working side and the second working side.

[0013] In one embodiment, the direct-drive supercharging compression device also includes a first shell and a second shell, the first shell and the second shell are respectively connected to the two sides of the cylinder body, the first shell is provided with a first air inlet and a first air outlet, the second shell is provided with a second air inlet and a second air outlet, the first air inlet and the first air outlet are connected to the first working side, and the second air inlet and the second air outlet are connected to the second working side.

[0014] In one embodiment, one end of the boost pipe is connected to the turbine mechanism, and the other end is provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to the first air inlet and the second air inlet.

[0015] In one embodiment, the direct-drive supercharging compression device also includes a first valve plate and a second valve plate, the first valve plate is clamped between the first shell and the cylinder body, the second valve plate is clamped between the second shell and the cylinder body, the first valve plate is respectively provided with a first intake valve and a first outlet valve, the first intake port is connected to the first working side through the first intake valve, and the first outlet port is connected to the first working side through the first outlet valve; the second valve plate is respectively provided with a second intake valve and a second outlet valve, the second intake port is connected to the second working side through the second intake valve, and the second outlet port is connected to the second working side through the second outlet valve.

[0016] In one embodiment, the power assembly further includes two reduction mechanisms, and the two reduction mechanisms are respectively connected to two sides of the first power mechanism.

[0017] In one embodiment, the power assembly further includes a first rolling bearing, a second rolling bearing, a first plane bearing and a second plane bearing, wherein the first rolling bearing and the first plane bearing are spaced apart on the output shaft on one side of the first power mechanism, and the second rolling bearing and the second plane bearing are spaced apart on the output shaft on the other side of the first power mechanism.

[0018] In one embodiment, the reciprocating body includes a connecting body and a nesting, the rolling element is embedded in the nesting, the connecting body is provided with a locking structure, and the direct-drive supercharged compression device also includes a connecting shaft, the connecting shaft is connected to the piston, and a connecting disk is provided at one end of the connecting shaft away from the piston, and the connecting disk is fixed to the locking structure.

[0019] The above-mentioned direct-drive supercharged compression device of the present application, through the setting of the supercharging mechanism, helps to perform a first-stage pre-compression treatment on the high-flow and low-pressure intake gas, thereby increasing the gas pressure entering the cylinder body of the compression component located on one side or both sides of the output shaft, thereby improving the compression effect; when the turbine mechanism is connected to the cylinder bodies located on both sides of the output shaft through the supercharging pipeline, the cylinder bodies on both sides can be supercharged, thereby improving the compression effect; when the turbine mechanism is connected to the cylinder body located on one side of the output shaft through the supercharging pipeline, and the cylinder bodies located on both sides of the output shaft are connected, this can achieve a multi-stage supercharging form of turbine mechanism-first side cylinder body-second side cylinder body, further improving the compression effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a direct-drive supercharging compression device in one embodiment of the present application.

[0021] FIG. 2 is a top view of the direct-drive supercharged compression device shown in FIG. 1 .

[0022] FIG. 3 is a cross-sectional view of the direct-drive supercharged compression device shown in FIG. 2 at AA.

[0023] FIG. 4 is a schematic structural diagram of a direct-drive supercharging compression device according to another embodiment of the present application.

[0024] FIG5 is a schematic structural diagram of a direct-drive supercharging compression device according to another embodiment of the present application.

[0025] FIG. 6 is a schematic diagram of a portion of the structure of the direct-drive supercharging compression device shown in FIG. 1 , with the second housing omitted.

[0026] FIG. 7 is a schematic diagram of a portion of the structure of the direct-drive supercharged compression device shown in FIG. 6 , with the connector omitted.

[0027] FIG8 is a schematic diagram of a portion of the structure of the direct-drive supercharging compression device shown in FIG6 , with the third housing omitted.

[0028] FIG. 9 is an exploded view of a portion of the structure of the direct-drive supercharging compression device shown in FIG. 8 .

[0029] FIG. 10 is a schematic diagram of the structure of the output shaft in one embodiment of the present application.

[0030] Description of Figure Numbers

[0031] 10. Direct-drive supercharged compression device; 100. Power assembly; 110. First power mechanism; 120. Output shaft; 121. Shaft head; 121a. Guide groove; a1. Wave crest; a2. Wave trough; 130. Speed ​​reduction mechanism; 140. First rolling bearing assembly; 141. First rolling bearing; 142. Second rolling bearing; 150. First plane bearing assembly; 151. First plane bearing; 152. Second plane bearing; 200. Compression assembly; 200a. First compression assembly; 200b. Second compression assembly; 210. Reciprocating body; 211. Connecting body; 2111. Locking structure; 2112. Perforated structure; 212. Nesting; 220. Rolling element; 230. Piston; 230a. First compression surface; 230b. Second compression surface; 240. Cylinder body; 240b. Second working side; 250. Guide rod assembly; 300. First housing; 310, first air inlet; 320, first air outlet; 400, second housing; 410, second air inlet; 420, second air outlet; 500, first valve plate; 510, first air inlet valve; 520, first air outlet valve; 600, second valve plate; 600a, second air inlet hole; 600b, second air outlet hole; 610, second air inlet valve; 620, second air outlet valve; 630, second sealing member; 700, third housing; 800, connecting shaft; 810, connecting plate; 900, heat dissipation mechanism; 1000, boosting mechanism; 1100, second power mechanism; 1200, turbine mechanism; 1300, boosting pipeline; 1310, first interface; 1320, second interface; 1400, secondary compression pipeline; 1500, first boosting pipeline; 1600, second boosting pipeline; 1700, first-stage turbine mechanism; 1800, second-stage turbine mechanism. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] Referring to Figures 1, 2 and 3, Figure 1 shows a schematic structural diagram of a direct-drive boost compression device 10 in an embodiment of the present application, Figure 2 is a top view of the direct-drive boost compression device 10 shown in Figure 1, and Figure 3 is a cross-sectional view of the direct-drive boost compression device 10 shown in Figure 2 at AA.

[0039] As shown in FIG3 , a direct-drive supercharged compression device 10 of an embodiment of the present application includes a power assembly 100, a compression assembly 200 and a supercharging mechanism 1000. The power assembly 100 includes a first power mechanism 110 and an output shaft 120, the output shaft 120 is connected to the first power mechanism 110, and the two ends of the output shaft 120 extend toward the two sides of the first power mechanism 110, respectively, and the first power mechanism 110 is used to drive the output shaft 120 to rotate around its axis. The compression assembly 200 includes a reciprocating body 210, a rolling element 220, a piston 230 and a cylinder body 240, the piston 230 is arranged in the cylinder body 240, the rolling element 220 is embedded in the reciprocating body 210, and the reciprocating body 210 is connected to the piston 230. As shown in FIG3 , the two ends of the output shaft 120 are each connected to a compression assembly 200, which are the first compression assembly 200a and the second compression assembly 200b.

[0040] Specifically, as shown in FIG. 3 and FIG. 7 , each end of the output shaft 120 is connected to a shaft head 121, and each of the two ends of the output shaft 120 is linked to a reciprocating body 210 of the compression assembly 200 through the shaft head 121; wherein the shaft head 121 is provided with a guide groove 121a along its circumferential surface, and the rolling element 220 of the compression assembly 200 located on the corresponding side is engaged with the guide groove 121a, so that the shaft head 121 is linked to the corresponding reciprocating body 210. The track of the guide groove 121a is configured such that when the shaft head 121 rotates to make the rolling element 220 move along the guide groove 121a, the reciprocating body 210 drives the piston 230 to reciprocate and compress in the cylinder body 240.

[0041] Continuing to refer to FIGS. 3 to 5 , the boost mechanism 1000 includes a second power mechanism 1100 and a turbine mechanism 1200 , and an output end of the second power mechanism 1100 is connected to the turbine mechanism 1200 .

[0042] First, in combination with what is shown in FIG. 3 , in some embodiments, the turbine mechanism 1200 is connected to the cylinder bodies 240 located on both sides of the output shaft 120 through a boost pipe 1300 respectively; or in combination with what is shown in FIG. 4 and FIG. 5 , in some embodiments, the turbine mechanism 1200 is connected to the cylinder bodies 240 located on one side of the output shaft 120 through a boost pipe 1300, and the cylinder bodies 240 located on both sides of the output shaft 120 are connected.

[0043] Specifically, referring to Figures 4 and 5, in the embodiment where the cylinder bodies 240 on both sides of the output shaft 120 are connected, the direct-drive boost compression device 10 further includes a two-stage compression pipeline 1400. The two ends of the two-stage compression pipeline 1400 are respectively used to connect the first air outlet 320 and the second air outlet 420 of the cylinder body 240 on the first side with the first air inlet 310 and the second air inlet 410 of the cylinder body 240 on the second side.

[0044] On the one hand, the above-mentioned direct-drive supercharged compression device 10 of the present application, through the setting of the supercharging mechanism 1000, helps to perform a first-stage pre-compression treatment on the high-flow and low-pressure intake gas, thereby increasing the gas pressure entering the cylinder 240 of the compression assembly 200 located on one side or both sides of the output shaft 120, thereby improving the compression effect; when the turbine mechanism 1200 is connected to the cylinder 240 located on both sides of the output shaft 120 through the supercharging pipeline 1300, the cylinder 240 located on both sides can be supercharged, thereby improving the compression effect; when the turbine mechanism 1200 is connected to the cylinder 240 located on one side of the output shaft 120 through the supercharging pipeline 1300, and the cylinder 240 located on both sides of the output shaft 120 are connected, this can achieve a multi-stage supercharging form of the turbine mechanism 1200, the first side cylinder 240 and the second side cylinder 240, further improving the compression effect. The present application can select any combination of boosting forms to meet actual needs, thereby improving the adaptability of the present direct-drive boosting compression device 10. It should be noted that the first side and the second side are one side located at both ends of the output shaft 120, respectively.

[0045] On the other hand, the above-mentioned direct-drive supercharged compression device 10 of the present application realizes the control of the first power mechanism 110 on the rotation of the output shaft 120 around the axis, which is converted into the control of the reciprocating motion of the piston 230 along the axis direction, through the mutually engaged setting of the shaft head 121 and the rolling element 220. This control method is simple and reliable, and effectively improves the driving efficiency of the piston 230. Further, the piston 230 is directly driven to reciprocate by rotating the output shaft 120 around its axis. In this way, the characteristic of the output shaft 120 having output at both ends can be utilized, and the compression assembly 200 is simultaneously arranged at both ends of the output shaft 120, thereby realizing the design of simultaneous compression of the dual-cylinder dual-piston 230, which helps to improve the working efficiency of the direct-drive supercharged compression device 10.

[0046] Specifically, the first power mechanism 110 can be a motor, a hydraulic drive device, a pneumatic drive device, etc., as long as it can drive the output shaft 120 to rotate around its axis. Preferably, in some embodiments, the first power mechanism 110 is a motor. The rolling element 220 can be a spherical ball. Since the rolling element 220 moves along the guide groove 121a of the shaft head 121 when the shaft head 121 rotates, the spherical ball of the rolling element 220 can reduce the friction between the rolling element 220 and the wall surface of the guide groove 121a, thereby improving the smoothness of the reciprocating motion of the reciprocating body 210 driven by the shaft head 121.

[0047] It should also be noted that the traditional crankshaft rocker compressor, crank connecting rod compressor or swash plate compressor utilizes the reciprocating swing of its eccentric structure to achieve the reciprocating motion control of the piston. This control method is inefficient and causes great damage to the vibration and friction of the structure. The present application provides a shaft head 121 at the end of the output shaft 120, and utilizes the guide groove 121a of the shaft head 121 to drive the reciprocating motion of the piston 230. It abandons the eccentric control method, simplifies the structure, and improves the convenience of control. In addition, compared with the traditional crankshaft rocker compressor, crank connecting rod compressor or swash plate compressor, the present application achieves that the axial direction of the output shaft 120, the movement direction of the reciprocating body 210, and the compression direction of the piston 230 remain consistent, which helps to reduce the vibration and friction damage between the structures and helps to improve the working reliability of the structure.

[0048] Referring to FIG. 4 , in some embodiments, the number of the turbine mechanism 1200 is 1, thereby realizing the first-stage compression of the turbine mechanism 1200 , the second-stage compression of the compression assembly 200 located on the first side, and the third-stage compression of the compression assembly 200 located on the second side, thereby realizing the multi-stage compression effect of the direct-drive compression device 10 .

[0049] Continuing to refer to FIG. 3 and FIG. 5 , in some embodiments, the number of turbine mechanisms 1200 is two, namely a first-stage turbine mechanism 1700 and a second-stage turbine mechanism 1800 , and the output ends on both sides of the second power mechanism 1100 are respectively connected to the first-stage turbine mechanism 1700 and the second-stage turbine mechanism 1800 .

[0050] In this embodiment, the setting of simultaneously driving the first-stage turbine mechanism 1700 and the second-stage turbine mechanism 1800 for supercharging by the output ends of both sides of the second power mechanism 1100 is helpful to optimize and improve the energy output efficiency of the second power mechanism 1100. In this embodiment, both the first power mechanism 110 and the second power mechanism 1100 achieve the effect of output driving at both ends at the same time, which helps to improve the structural compactness of the direct-drive supercharged compression device 10, reduce the volume of the device, and optimize the structural layout.

[0051] Further, referring to FIG. 3 , in some embodiments, the first-stage turbine mechanism 1700 is connected to the cylinder body 240 located on one side, and the second-stage turbine mechanism 1800 is connected to the cylinder body 240 located on the other side, thereby achieving supercharging of the cylinder bodies 240 on both sides, thereby improving the compression effect of the direct-drive supercharging compression device 10.

[0052] Or referring to FIG. 5 , in some embodiments, the first-stage turbine mechanism 1700 is connected to the second-stage turbine mechanism 1800 , the cylinders 240 located on both sides of the output shaft 120 are connected, and the second-stage turbine mechanism 1800 is connected to the cylinder 240 on one side.

[0053] Specifically, the direct-drive supercharged compression device 10 includes a primary supercharged pipeline 1500 and a secondary supercharged pipeline 1600. The two ends of the primary supercharged pipeline 1500 are respectively used to connect the air outlet of the first-stage turbine mechanism 1700 with the air inlet of the second-stage turbine mechanism 1800. The two ends of the secondary supercharged pipeline 1600 are respectively used to connect the air outlet of the second-stage turbine mechanism 1800 with the first air inlet 310 and the second air inlet 410 of the cylinder body 240 located on the first side. This embodiment realizes the primary supercharge of the first-stage turbine mechanism 1700, the secondary supercharge of the second-stage turbine mechanism 1800, the third-stage supercharge of the compression assembly 200 located on the first side, and the fourth-stage supercharge of the compression assembly 200 located on the second side through the above-mentioned arrangement, so that the compression effect of the direct-drive supercharged compression device 10 can be further improved. It should be noted that FIG. 5 of the present application only shows a schematic diagram of the structure of an embodiment of two turbine mechanisms 1200. It is understandable that other embodiments of multi-stage supercharging including 3 turbine mechanisms 1200, 4 turbine mechanisms 1200 or more turbine mechanisms 1200 connected in sequence to each other should also fall within the scope of protection of the present application.

[0054] Continuing to refer to Figure 7, in some embodiments, the trajectory of the guide groove 121a is a closed curve that surrounds the shaft head 121, and the closed curve trajectory of the guide groove 121a has crests a1 and troughs a2, and the crests a1 and the troughs a2 are distributed on the circumferential surface of the shaft head 121 at intervals around the axial direction of the shaft head 121, so that the reciprocating body 210 can reciprocate along the axial direction of the shaft head 121 under the guidance of the crests a1 and the troughs a2.

[0055] Specifically, the number of the peaks a1 and the troughs a2 can be designed according to actual needs. For example, when the rotation speed of the shaft head 121 is constant, the number of the peaks a1 and the troughs a2 can be increased to increase the frequency of the reciprocating motion of the reciprocating body 210, thereby increasing the compression frequency of the piston 230. On the contrary, when the rotation speed of the shaft head 121 is constant, the number of the peaks a1 and the troughs a2 can be reduced to reduce the frequency of the reciprocating motion of the reciprocating body 210, thereby reducing the compression frequency of the piston 230.

[0056] As shown in Figure 7, in some embodiments, the number of peaks a1 and troughs a2 is set to 2, and the peaks a1 and troughs a2 are evenly distributed at 90 degrees around the axis of the shaft head 121. In this way, the reciprocating body 210 can reciprocate twice within one rotation of the shaft head 121, which not only ensures the rationality of the structural arrangement, but also improves the movement efficiency of the reciprocating body 210.

[0057] Furthermore, in some embodiments, the trajectories of the guide grooves 121a of the shaft heads 121 at both ends of the output shaft 120 are arranged in a mirror-symmetrical manner perpendicular to the mid-vertical plane of the output shaft 120, so that a pair of pistons 230 can move in opposite directions to each other, thereby helping to maintain the force balance on both sides of the direct-drive boost compression device 10, reduce the vibration of the direct-drive boost compression device 10 during operation, and improve the working stability of the direct-drive boost compression device 10.

[0058] As shown in Figure 3, in some embodiments, the piston 230 has a first compression surface 230a and a second compression surface 230b that are opposite to each other. The first compression surface 230a and the inner wall of one side of the cylinder body 240 constitute a first working side (not shown), and the second compression surface 230b and the inner wall of the other side of the first cylinder body 240 constitute a second working side 240b. When the shaft head 121 rotates to make the rolling element 220 move along the guide groove 121a, the reciprocating body 210 drives the piston 230 to alternately reciprocate and compress the first working side and the second working side 240b.

[0059] It should be noted that the first working side and the second working side 240b refer to the compression chambers located on both sides of the piston 230. As shown in FIG3 , the piston 230 is completely in contact with the inner wall of one side of the cylinder body 240, and the volume of the first working side is zero, so only the second working side 240b is shown in FIG3 . It can be understood that when the piston 230 is completely in contact with the inner wall of the other side of the cylinder body 240, the volume of the second working side 240b is zero, and the volume of the first working side reaches the maximum.

[0060] In this embodiment, the piston 230 has a first compression surface 230a and a second compression surface 230b that are separated from each other, so that when the reciprocating body 210 drives the piston 230 to reciprocate, the first compression surface 230a and the second compression surface 230b can respectively perform compression work on the first working side and the second working side 240b, so that the piston 230 can perform compression work whether it is moving forward or backward, which helps to improve the working efficiency of the direct-drive supercharged compression device 10 and ensure the compression effect. In addition, compression assemblies 200 are provided at both ends of the output shaft 120 of the present application, so that the present application can achieve the compression work effect of two pistons 230 and four compression surfaces, ensuring the working efficiency of the direct-drive supercharged compression device 10.

[0061] Continuing with reference to Figures 1 and 3, in some embodiments, the direct-drive boost compression device 10 further includes a first shell 300 and a second shell 400, the first shell 300 and the second shell 400 are respectively connected to the two sides of the cylinder body 240, the first shell 300 is provided with a first air inlet 310 and a first air outlet 320, the second shell 400 is provided with a second air inlet 410 and a second air outlet 420, the first air inlet 310 and the first air outlet 320 are connected to the first working side, the second air inlet 410 and the second air outlet 420 are connected to the second working side 240b, thereby realizing independent air inlet and outlet of the first working side and independent air inlet and outlet of the second working side 240b.

[0062] Specifically, the second shell 400 serves as the air inlet and outlet of the second working side 240b on the one hand, and is used to install and protect the reciprocating body 210 and the rolling element 220 on the other hand, which helps to improve the overall structural compactness and structural integrity of the direct-drive boost compression device 10, thereby helping to reduce the volume of the direct-drive boost compression device 10 and improve the portability and applicability of the direct-drive boost compression device 10.

[0063] As shown in FIG3 , in some embodiments, one end of the boost pipe 1300 is connected to the turbine mechanism 1200, and the other end is provided with a first interface 1310 and a second interface 1320, and the first interface 1310 and the second interface 1320 are respectively connected to the first air inlet 310 and the second air inlet 410. Specifically, the turbine mechanisms 1200 located on both sides of the second power mechanism 1100 can pre-boost the intake air respectively, and continuously pass the boosted gas into the first working side and the second working side 240b through the first air inlet 310 and the second air inlet 410, respectively, so as to improve the compression effect of the compression assembly 200.

[0064] For ease of understanding, the air inlet and outlet process of the direct-drive supercharged compression device 10 shown in Fig. 3 is described below. It should be noted that Fig. 3 includes a first compression assembly 200a and a second compression assembly 200b. The present application will only describe the compression process of the first compression assembly 200a below. The compression process of the second compression assembly 200b is the same as that of the first compression assembly 200a, so it will not be described in detail.

[0065] Since in the direct-drive boost compression device 10 of the present application, the reciprocating body 210 can drive the piston 230 to alternately perform reciprocating compression on the first working side and the second working side 240b, the reciprocating motion of the piston 230 in the cylinder body 240 includes a process in which the first compression surface 230a compresses the left inner wall of the cylinder body 240, and a process in which the second compression surface 230b compresses the right inner wall of the cylinder body 240.

[0066] Specifically, from the perspective shown in FIG. 3 , when the piston 230 starts to compress rightward from the leftmost side of the cylinder 240 (the first compression surface 230a abuts the left inner wall of the cylinder 240), the second air inlet 410 and the second air outlet 420 both remain in a closed state, and the gas in the second working side 240b is compressed as the piston 230 moves. As the piston 230 continues to compress rightward, the gas pressure in the second working side 240b gradually increases, and the gas is eventually discharged through the second air outlet 420. In addition, during this process, the first air outlet 320 remains in a closed state, and the first air inlet 310 remains in an open state, and the compressed gas flows into the first working side through the first air inlet 310. When the second compression surface 230b of the piston 230 abuts the rightmost inner wall of the cylinder 240, the compression and working process of the second working side 240b ends, and the piston 230 starts to move to the left and compresses and works on the first working side.

[0067] When the piston 230 starts to compress to the left from the rightmost side of the cylinder 240 (the second compression surface 230b abuts against the right inner wall of the cylinder 240), the first air inlet 310 and the first air outlet 320 are both kept closed, and the gas in the first working side is compressed as the piston 230 moves. As the piston 230 continues to compress to the left, the gas pressure in the first working side gradually increases, and the gas is eventually discharged through the first air outlet 320. In addition, during this process, the second air outlet 420 is kept closed, and the second air inlet 410 is kept open, and the compressed gas flows into the second working side 240b through the second air inlet 410.

[0068] The above is a general process of the inlet and outlet of the direct-drive supercharged compression device 10, which can realize the bidirectional compression of the piston 230, which helps to improve the compression effect of the direct-drive supercharged compression device 10. Further, since the compression assembly 200 is provided at both ends of the output shaft 120, the bidirectional compression of the piston 230 can be realized at both ends of the output shaft 120, which helps to further improve the compression effect of the direct-drive supercharged compression device 10.

[0069] Continuing to refer to FIG. 3 , in some embodiments, the direct-drive supercharging compression device 10 further includes a first valve plate 500 and a second valve plate 600. The first valve plate 500 is sandwiched between the first shell 300 and the cylinder body 240, and the second valve plate 600 is sandwiched between the second shell 400 and the cylinder body 240. The first valve plate 500 is respectively provided with a first intake valve 510 and a first outlet valve 520. The first intake port 310 is connected to the first working side through the first intake valve 510, and the first outlet port 320 is connected to the first working side through the first outlet valve 520. The second valve plate 600 is respectively provided with a second intake valve 610 and a second outlet valve 620. The second intake port 410 is connected to the second working side 240b through the second intake valve 610, and the second outlet port 420 is connected to the second working side 240b through the second outlet valve 620.

[0070] Specifically, the first valve plate 500 is opposite to the first compression surface 230a, and the second valve plate 600 is opposite to the second compression surface 230b. The first valve plate 500 and the second valve plate 600 are respectively used as sealing members between the first housing 300 and the cylinder body 240, and between the second housing 400 and the cylinder body 240. Therefore, in some embodiments, a first sealing member is provided on both sides of the first valve plate 500, and a second sealing member 630 is provided on both sides of the second valve plate 600 (as shown in conjunction with FIG. 6), which helps to improve the sealing performance of the direct-drive supercharged compression device 10 and ensure the sealing and high efficiency of the compression process of the piston 230.

[0071] As shown in FIG6 , in some embodiments, the second valve plate 600 is provided with a second air inlet 600a and a second air outlet 600b, and the second air inlet valve 610 and the second air outlet valve 620 can be connected to the second air inlet 600a and the second air outlet 600b, respectively. In addition, as shown in FIG6 , the second valve plate 600 is further provided with a second sealing member 630, which is beneficial to improve the air inlet and outlet sealing effect of the second valve plate 600, thereby ensuring the compression effect of the direct-drive supercharged compression device 10.

[0072] Similarly, the first valve plate 500 is provided with a first air inlet hole and a first air outlet hole, and the first air inlet valve 510 and the first air outlet valve 520 can be connected to the first air inlet hole and the first air outlet hole respectively. In addition, the first valve plate 500 is also provided with a first sealing member, which is beneficial to improve the sealing effect of the air inlet and outlet of the first valve plate 500, thereby ensuring the compression effect of the gas.

[0073] As shown in combination with FIG6 and FIG7, in some embodiments, the reciprocating body 210 includes a connecting body 211 and a nesting 212, and the rolling element 220 is embedded in the nesting 212. In addition, as shown in combination with FIG3, FIG6 and FIG7, the connecting body 211 is provided with a locking structure 2111, and the direct-drive supercharged compression device 10 also includes a connecting shaft 800, and the connecting shaft 800 is connected to the piston 230. The end of the connecting shaft 800 away from the piston 230 is provided with a connecting disk 810, and the connecting disk 810 is fixed to the locking structure 2111.

[0074] Specifically, the connecting body 211 and the nesting 212 can be integrally formed or bolted. The axis of the connecting shaft 800 is consistent with the movement direction of the connecting body 211, which helps to ensure the smoothness of the movement of the piston 230. In addition, the design of providing a connecting plate 810 at one end of the connecting shaft 800 helps to improve the connection stability between the connecting shaft 800 and the connecting body 211, and improve the working reliability of the direct-drive supercharged compression device 10.

[0075] As shown in FIG. 6 , in some embodiments, the connector 211 is provided with a perforated structure 2112 , and the compression assembly 200 further includes a guide rod assembly 250 , and the guide rod assembly 250 is provided through the perforated structure 2112 .

[0076] Specifically, the guide rod assembly 250 may include a first guide rod and a second guide rod that are inserted into both sides of the connecting body 211, which helps to improve the stability of the reciprocating motion of the reciprocating body 210. Understandably, in other embodiments, the guide rod assembly 250 may also include a third guide rod, a fourth guide rod, etc. The number of guide rods can be designed according to actual structural requirements. Specifically, a plurality of guide rods can be evenly distributed around the axis of the output shaft 120.

[0077] 6 , in some embodiments, the direct-drive supercharged compression device 10 further includes a third housing 700. The first guide rod is fixedly connected to the second housing 400 and the third housing 700, respectively, and both ends of the second guide rod are fixedly connected to the second housing 400 and the third housing 700, respectively.

[0078] As shown in FIG. 3 , in some embodiments, the power assembly 100 further includes two reduction mechanisms 130, which are respectively connected to the two sides of the first power mechanism 110, and the reduction mechanisms 130 are used to reduce the speed and increase the torque of the first power mechanism 110, and transmit the torque to the shaft head 121 via the output shaft 120, so as to achieve reasonable transmission of the torque. Specifically, in this embodiment, the output shaft 120 is configured into two sections, and the two sections of the output shaft 120 are respectively connected to the reduction mechanisms 130 on the two sides of the first power mechanism 110, and then connected to the shaft heads 121 on the two sides of the first power mechanism 110.

[0079] Specifically, in this embodiment, the present application can directly assemble the first power mechanism 110, the reduction mechanism 130 and the output shaft 120 with each other, thereby realizing the conversion of the rotation of the output shaft 120 into the reciprocating motion of the piston 230. Compared with the traditional control of the eccentric structure, the control method of the present application is more convenient. The installation can be completed by connecting the output end of the first power mechanism 110 to the output shaft 120, thereby improving the assembly simplicity and structural connection reliability of the direct-drive supercharged compression device 10.

[0080] As shown in Figure 9, Figure 9 is an exploded view of a part of the structure of the direct-drive supercharged compression device 10 shown in Figure 8. In some embodiments, the speed reduction mechanism 130 is a planetary gear structure, the end of the output shaft 120 has a disc-shaped structure, and the disc-shaped structure is provided with a corresponding connection hole, and the planetary gear structure is inserted into the corresponding connection hole to achieve a fixed connection between the output shaft 120 and the planetary gear structure.

[0081] Referring to FIG. 10 , in some embodiments, when the direct-drive supercharging compression device 10 is not equipped with a speed reduction mechanism 130, the output shaft 120 does not need to be configured as two sections. Therefore, in this embodiment, the output shaft 120 is in the shape of a continuous long shaft, and the two ends of the output shaft 120 are respectively connected to the shaft head 121, and the first power mechanism 110 is used to be directly connected to the middle position of the output shaft 120 to directly drive the output shaft 120 to rotate around its axis.

[0082] Specifically, according to design requirements, such as torque requirements or overall device volume requirements, the present application can choose a solution with or without a reduction mechanism 130, thereby correspondingly selecting a configuration of the output shaft 120 in one of the above-mentioned embodiments, thereby meeting design requirements and improving the structural applicability of the direct-drive supercharged compression device 10.

[0083] As shown in FIG8 , in some embodiments, the power assembly 100 further includes a first rolling bearing assembly 140, a first plane bearing assembly 150, a second rolling bearing assembly (not shown), and a second plane bearing assembly (not shown). The first rolling bearing assembly 140 and the first plane bearing assembly 150 are sleeved on the output shaft 120 on one side of the first power mechanism 110 at intervals, and the second rolling bearing assembly and the second plane bearing assembly are sleeved on the output shaft 120 on the other side of the first power mechanism 110 at intervals (it should be noted that FIG8 only shows the bearing installation diagram on one side of the first power mechanism 110, and the other side is symmetrically arranged, which will not be repeated here).

[0084] Specifically, as shown in FIG8 , the first rolling bearing assembly 140 includes a first rolling bearing 141 and a second rolling bearing 142; the first plane bearing assembly 150 includes a first plane bearing 151 and a second plane bearing 152. Similarly, the second rolling bearing assembly (not shown) also includes two rolling bearings; the second plane bearing assembly (not shown) also includes two plane bearings. Continuing with FIG8 , the first rolling bearing 141 and the second rolling bearing 142 are spaced apart on one side of the output shaft 120, which helps to reduce the rotational friction of the output shaft 120. In addition, the first plane bearing 151 and the second plane bearing 152 are spaced apart between the first rolling bearing 141 and the second rolling bearing 142, which helps to improve the load-bearing effect on the output shaft 120, thereby improving the structural stability of the direct-drive supercharged compression device 10 and reducing the vibration effect of the rotation.

[0085] Referring again to FIG. 1 , in some embodiments, the direct-drive supercharged compression device 10 further includes a heat dissipation mechanism 900, which is wrapped around the outer surface of the cylinder 240, thereby improving the heat dissipation effect of the cylinder 240. Specifically, the heat dissipation mechanism 900 may be composed of a plurality of heat dissipation fins, thereby being able to discharge the heat of the cylinder 240 in a timely manner.

[0086] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A direct-drive supercharged compression device, characterized in that: include: A power assembly, the power assembly comprising a first power mechanism and an output shaft, the output shaft is connected to the first power mechanism, and two ends of the output shaft extend toward two sides of the first power mechanism respectively, and the first power mechanism is used to drive the output shaft to rotate around its axis; A compression assembly, the compression assembly comprising a reciprocating body, a rolling element, a piston and a cylinder body, the piston is arranged in the cylinder body, the rolling element is embedded in the reciprocating body, and the reciprocating body is connected to the piston; The two ends of the output shaft are each connected to a shaft head, and are linked to the reciprocating body of the compression assembly through the shaft head; wherein the shaft head is provided with a guide groove along its circumferential surface, and the rolling element of the compression assembly located on the corresponding side is clamped in the guide groove, so that the shaft head is linked to the corresponding reciprocating body, and the track of the guide groove is configured as follows: when the shaft head rotates to make the rolling element move along the guide groove, the reciprocating body drives the piston to reciprocate and compress in the cylinder body; A supercharging mechanism, wherein the supercharging mechanism includes a second power mechanism and a turbine mechanism, wherein the output end of the second power mechanism is connected to the turbine mechanism; the turbine mechanism is connected to the cylinder bodies located on both sides of the output shaft through a supercharging pipeline; or, the turbine mechanism is connected to the cylinder bodies located on one side of the output shaft through a supercharging pipeline, and the cylinder bodies located on both sides of the output shaft are connected.

2. The direct-drive supercharged compression device according to claim 1, characterized in that: The number of the turbine mechanisms is two, namely a first-stage turbine mechanism and a second-stage turbine mechanism, and the output ends of the second power mechanism on both sides are connected to the first-stage turbine mechanism and the second-stage turbine mechanism respectively; The first-stage turbine mechanism is connected to the cylinder body on one side, and the second-stage turbine mechanism is connected to the cylinder body on the other side; or, the first-stage turbine mechanism is connected to the second-stage turbine mechanism, and the second-stage turbine mechanism is connected to the cylinder body on one side.

3. The direct-drive supercharged compression device according to claim 1 or 2, characterized in that: The trajectory of the guide groove is a closed curve that surrounds the shaft head, and the closed curve trajectory of the guide groove has crests and troughs, and the crests and troughs are distributed on the circumferential surface of the shaft head at intervals around the axial direction of the shaft head.

4. The direct-drive supercharged compression device according to claim 1 or 2, characterized in that: The piston has a first compression surface and a second compression surface that are opposite to each other. The first compression surface and an inner wall of one side of the cylinder body constitute a first working side, and the second compression surface and an inner wall of the other side of the cylinder body constitute a second working side. When the shaft head rotates to cause the rolling element to move along the guide groove, the reciprocating body drives the piston to alternately reciprocate and compress the first working side and the second working side.

5. The direct-drive supercharged compression device according to claim 4, characterized in that: The direct-drive supercharged compression device also includes a first shell and a second shell, the first shell and the second shell are respectively connected to the two sides of the cylinder body, the first shell is provided with a first air inlet and a first air outlet, the second shell is provided with a second air inlet and a second air outlet, the first air inlet and the first air outlet are connected to the first working side, and the second air inlet and the second air outlet are connected to the second working side.

6. The direct-drive supercharged compression device according to claim 5, characterized in that: One end of the boost pipe is connected to the turbine mechanism, and the other end is provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to the first air inlet and the second air inlet.

7. The direct-drive supercharged compression device according to claim 5, characterized in that: The direct-drive supercharged compression device also includes a first valve plate and a second valve plate, the first valve plate is clamped between the first shell and the cylinder body, the second valve plate is clamped between the second shell and the cylinder body, the first valve plate is respectively provided with a first intake valve and a first outlet valve, the first intake port is connected to the first working side through the first intake valve, and the first outlet port is connected to the first working side through the first outlet valve; the second valve plate is respectively provided with a second intake valve and a second outlet valve, the second intake port is connected to the second working side through the second intake valve, and the second outlet port is connected to the second working side through the second outlet valve.

8. The direct-drive supercharged compression device according to claim 1 or 2, characterized in that: The power assembly further includes two reduction mechanisms, and the two reduction mechanisms are respectively connected to two sides of the first power mechanism.

9. The direct-drive supercharged compression device according to claim 1 or 2, characterized in that: The power assembly also includes a first rolling bearing, a second rolling bearing, a first plane bearing and a second plane bearing. The first rolling bearing and the first plane bearing are spaced apart on the output shaft on one side of the first power mechanism, and the second rolling bearing and the second plane bearing are spaced apart on the output shaft on the other side of the first power mechanism.

10. The direct-drive supercharged compression device according to claim 1 or 2, characterized in that: The reciprocating body includes a connecting body and a nesting, the rolling element is embedded in the nesting, the connecting body is provided with a locking structure, the direct-drive supercharged compression device also includes a connecting shaft, the connecting shaft is connected to the piston, and a connecting disk is provided at one end of the connecting shaft away from the piston, and the connecting disk is fixed to the locking structure.

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