CN104265630B - A spherical ball compressor - Google Patents

Abstract

The invention discloses a kind of spherical ball compressor, including concentric spheroid and spherical shell, the outer surface of spheroid be provided with a spheroid bulge loop and symmetrical be two spheroid arc grooves that 90 ° of angles intersect with spheroid bulge loop, in intersection, spheroid bulge loop has bulge loop breach at two；The inner surface of spherical shell is provided with the spherical shell scrobicular ring and a spherical shell annular groove intersected with 5～85 ° of angles, forms two spherical shell groove intersections；Spheroid bulge loop is mutually embedding with spherical shell scrobicular ring, and spheroid can turn round in spherical shell along mutually embedding circuit.Having two arc ring groove intersections between spheroid arc groove and spherical shell annular groove, be respectively equipped with a ball, along with the rotation of spheroid, ball can do gyration in spherical shell annular groove.In the both sides of each spherical shell groove intersection, offering air entry and air vent respectively, air vent is provided with air bleeding valve.Spheroid bulge loop periodically separator of bearing balls girdle groove, in spherical shell annular groove, form compression stroke and breathing space, it is achieved the suction of gas, the exhaust effect of compression.

Description

A spherical ball compressor

technical field

The invention relates to a spherical ball compressor, which has the working characteristics of a rotary compressor and is used for compressing various gases and increasing the gas pressure.

Background technique

Compressor is a kind of machinery used to compress gas to increase gas pressure or transport gas. It is widely used in power, refrigeration, metallurgy, petrochemical and other industries. According to the principle of action, compressors can be mainly divided into volume type and speed type. Volumetric compressors are divided into reciprocating and rotary, and speed compressors are divided into centrifugal and axial. The reciprocating compressor periodically inhales, compresses and exhausts air through the reciprocating movement of the piston in the cylinder to complete the gas compression process. The rotary compressor reduces the volume of the gas through the rotation of the piston to increase the gas pressure, and its working efficiency is usually higher than that of the reciprocating compressor. There are many types of rotary compressors, and the specific compression methods used are different, each with its own characteristics.

At present, rotary compressors can be divided into rolling rotor type, sliding vane type, screw type, scroll type, etc. according to their structural characteristics, each with its own advantages and disadvantages. Once the bearings, main shaft, rollers or slides of the rolling rotor compressor are worn and the gap increases, it will have a more obvious adverse effect on its performance. Due to the large mechanical friction loss between the sliding vane and the rotor and the cylinder, the sliding vane compressor has a relatively low efficiency, which limits its application range. Screw compressors are not suitable for small gas flow occasions. Factors such as the periodic high-speed passage of gas through suction and exhaust holes and leakage through gaps will cause a lot of noise, so noise reduction and noise reduction measures need to be taken; in addition, the spiral The machining accuracy of the space curved surface of the rotor is high, and special equipment and tools are needed to process it; due to the limitations of gap seals and rotor stiffness, screw compressors cannot achieve higher end pressures like reciprocating compressors at present. Scroll refrigeration compressors have relatively low efficiency and high manufacturing costs under the condition of small gas flow, and require high-precision processing equipment and precise self-aligning assembly technology.

To sum up, the existing rotary compressors have various defects or limitations.

Contents of the invention

The invention discloses a spherical ball compressor, which aims at eliminating or alleviating the defects or deficiencies of the currently used rotary compressors. high.

Technical scheme of the present invention is as follows:

A spherical ball compressor, comprising a concentric sphere and a spherical shell, the outer diameter of the sphere is slightly smaller than the inner diameter of the spherical shell so that the sphere can rotate in the spherical shell; the outer surface of the sphere is provided with a convex The raised sphere convex ring and two concave sphere arc grooves, the two sphere arc grooves are symmetrically arranged at both ends of the sphere, and intersect with the sphere convex ring at an angle of 90° respectively. The convex ring of the sphere at the intersection has two convex ring gaps, and the cross section of the arc groove of the sphere is semicircular; the inner surface of the spherical shell is provided with a concave spherical shell concave ring and a concave concave ring. Spherical shell ring groove, the spherical shell ring groove and the spherical shell concave ring intersect at an angle of 5 to 85° to form a spherical shell groove intersection between two spherical shell ring grooves and the spherical shell concave ring. The concave ring of the spherical shell is embedded with the convex ring of the sphere, and the cross section of the annular groove of the spherical shell is a semicircle with the same size as the cross section of the arc groove of the sphere; root sphere axis, the sphere axis is perpendicular to the sphere convex ring, and the sphere rotates around the sphere axis; a shaft hole is arranged on the spherical shell, the axis of the shaft hole is perpendicular to the concave ring of the spherical shell, The sphere shaft passes through the shaft hole and is connected to the driving machine; there are two arc ring groove intersections between the sphere arc groove and the spherical shell ring groove, and each arc ring groove intersection is provided with a ball , the radius of the ball is consistent with the cross-sectional radius of the arc groove of the sphere; on both sides of the intersection of each spherical shell groove, there are respectively provided with an air inlet and an exhaust port, and the air inlet and the air outlet The exhaust ports communicate with the annular groove of the spherical shell, and the exhaust ports are provided with exhaust valves.

The compression principle of the present invention is: as the ball rotates in the spherical shell, under the constraints of the spherical arc groove and the spherical shell ring groove, the ball reciprocates in the spherical arc groove and rotates in the spherical shell ring groove; Most of the time, the intersection of the spherical shell groove is occupied by the spherical convex ring, and a compression space is formed in the spherical shell annular groove between the forward direction of the ball and the spherical convex ring (at this time, the exhaust valve is closed under the spring force. ), to perform gas compression; the space behind the ball in the spherical shell ring groove communicates with the air suction port to carry out the air suction process; when the ball moves close to the junction of the spherical shell groove, the compressed gas is greater than the exhaust gas The spring force of the air valve opens the exhaust valve valve to realize exhaust; after the exhaust, the ball will enter the intersection of the spherical shell groove, and at this time, the convex ring gap on the convex ring of the ball just turns into the intersection of the spherical shell groove, This opens the channel and allows the ball to pass through. After the balls pass through the intersection of the spherical shell grooves, the effects of air suction, compression and exhaust are generated again. The ball rotates once, and the two balls each generate two compression and exhaust processes.

Wherein, the cross section of the spherical convex ring is rectangular, and the cross section of the spherical shell concave ring is rectangular with the same size as the cross section of the spherical convex ring.

Wherein, the angle between the spherical shell ring groove and the spherical shell concave ring is 5-85°; the larger the angle between the spherical shell ring groove and the spherical shell concave ring, the more the sphere The arc length of the arc groove is longer.

Preferably, the included angle between the spherical shell ring groove and the spherical shell concave ring is 45°.

Preferably, the width of the notch of the convex ring is slightly larger than the diameter of the arc groove of the sphere, so as to facilitate the passage of the balls in the arc groove of the sphere.

Further, for the convenience of assembly, the spherical shell is formed by butting of two symmetrical parts about the center of the concave ring.

Since the reciprocating motion of the ball in the arc groove of the ball may cause harmful compression or expansion of the gas in the arc groove, further, a thin groove is opened at the bottom of the arc groove of the ball to allow the gas on both sides of the ball to conduct.

Due to the adoption of the above technical solution, the advantages and positive effects of the present invention: a spherical ball compressor described in the present invention has simple structure, simple parts processing, no suction valve, less wearing parts, no need for precise assembly technology, production Low cost, suitable for various gas compression, high compression efficiency.

Description of drawings

Fig. 1 is a front view of a ball in a preferred embodiment of a spherical ball compressor of the present invention.

Figure 2 is a side view of the sphere shown in Figure 1 .

Fig. 3 is a front cross-sectional view of the sphere shown in Fig. 1 .

Fig. 4 is a front sectional view of a spherical shell of a preferred embodiment of a spherical ball compressor of the present invention.

Fig. 5 is a side cross-sectional view at position F-F of the spherical shell shown in Fig. 4 .

Fig. 6 is a front sectional view of a preferred embodiment of a spherical ball compressor of the present invention; Middle position of the exhaust port.

Fig. 7 is a sectional view of the A-A position of the spherical ball compressor shown in Fig. 6, the section is cut along the ring groove of the spherical shell, and is perpendicular to the section shown in Fig. 6; in this figure, the position of the ball is the same as that of Fig. 6, The balls move the front to compress the gas and the rear to inhale it.

Fig. 8 is a cross-sectional view along the position of the arc groove of the sphere after the sphere is rotated by a certain angle from the position in Fig. 6 .

Fig. 9 is a cross-sectional view of the B-B position of the spherical ball compressor shown in Fig. 8. The cross-section is cut along the ring groove of the spherical shell and forms a certain angle with the cross-section shown in Fig. 8; inhale.

Figure 10 is a sectional view along the arc groove of the ball after the ball is rotated 90° from the position in Figure 6; in this figure, the position of the ball is in the middle of the arc groove of the ball, that is, at the notch of the convex ring, and the ball is also in the spherical shell The intersection of spherical shell and groove.

Figure 11 is a cross-sectional view of the C-C position of the spherical ball compressor shown in Figure 10, the section is cut along the ring groove of the spherical shell, and is 45° from the section shown in Figure 10; in this figure, the position of the ball is the same as that in Figure 10 , at this time, neither exhaust nor inhale.

Figure 12 is a cross-sectional view of the ball along the arc groove after the ball continues to rotate for several angles from the position in Figure 10; in this figure, the position of the ball is slightly to the right of the arc groove of the ball.

Fig. 13 is a cross-sectional view of the D-D position of the spherical ball compressor shown in Fig. 12. The cross-section is cut along the ring groove of the spherical shell and forms a certain angle with the cross-section shown in Fig. 12; in this figure, the ball moves forward to compress the gas, and the rear inhale.

Figure 14 is a sectional view along the arc groove of the ball after the ball rotates 90° from the position in Figure 10, that is, after the ball rotates 180° from the position in Figure 6; in this figure, the ball is at the right dead center of the arc groove of the ball, In the middle of the suction port at one end of the ring groove of the spherical shell and the exhaust port at the other end. Due to the symmetry of the two balls and the two air inlets and exhaust ports, the effect of this figure is equivalent to that of Figure 6.

Figure 15 is a sectional view of the E-E position of the spherical ball compressor shown in Figure 14, the section is cut along the ring groove of the spherical shell, and is perpendicular to the section shown in Figure 14; in this figure, the position of the ball is the same as that of Figure 14, The balls move the front to compress the gas and the rear to inhale it. Due to the symmetry of the two balls and the two air inlets and exhaust ports, the effect of this figure is equivalent to that of Figure 7.

Among them: 1. sphere shaft, 2. sphere, 3. sphere convex ring, 4. sphere arc groove, 5. shaft hole, 6. spherical shell, 7. spherical shell ring groove, 8. spherical shell concave ring, 9. ball , 10. Suction port, 11. Exhaust valve, 12. Exhaust port, 13. Convex notch, 14. Spherical shell groove intersection.

detailed description

The present invention will be further described below in conjunction with accompanying drawing and embodiment, but present embodiment is not intended to limit the present invention, and all adopt similar structures of the present invention and similar changes thereof, all should be included in the scope of protection of the present invention.

A spherical ball compressor, as shown in Figures 1-15, includes a concentric sphere 2 and a spherical shell 6. The outer diameter of the sphere 2 is slightly smaller than the inner diameter of the spherical shell 6 so that the sphere 2 can rotate in the spherical shell 6.

As shown in Figures 1-3, the outer surface of the sphere 2 is provided with a raised sphere convex ring 3 and two concave sphere arc grooves 4, and the two sphere arc grooves 4 are symmetrically arranged at both ends of the sphere 2, They respectively intersect with the spherical convex ring 3 at an angle of 90°, and there are two convex ring gaps 13 in the spherical convex ring 3 at the two intersections. The cross section of the spherical convex ring 3 is rectangular, and the cross section of the spherical arc groove 4 is semicircular. As shown in Figures 4-5, the inner surface of the spherical shell 6 is provided with a concave spherical shell ring 8 and a concave spherical shell ring groove 7, the spherical shell ring groove 7 and the spherical shell concave ring 8 can be formed in 5 ~85° included angle intersects to form the spherical shell groove intersection 14 between the two spherical shell ring grooves 7 and the spherical shell concave ring 8, wherein the included angle is preferably 45°. In this embodiment, the included angle of 45° is used . On both sides of the intersection 14 of each spherical shell groove, an air inlet 10 and an exhaust port 12 are respectively provided. An exhaust valve 11 is provided. Wherein, the cross-sectional size of the concave ring 8 of the spherical shell matches the cross-sectional size of the convex ring 3 of the spherical shell, the concave ring 8 of the spherical shell is embedded with the convex ring 3 of the spherical body, and the sphere 2 can be placed on the spherical shell along the embedded ring road. 6 internal turns. The cross section of the spherical shell ring groove 7 is a semicircle with the same size as the cross section of the spherical arc groove 4 .

Two ball shafts 1 are arranged on the ball 2. The ball shaft 1 is perpendicular to the ball convex ring 3. The ball 2 rotates around the ball shaft 1. The ball shell 6 is provided with a shaft hole 5. The axis of the shaft hole 5 is concave with the ball shell. The ring 8 is vertical, and the sphere shaft 1 passes through the shaft hole 5 and is connected with the driving machine to drive the sphere 2 to rotate.

There are two arc ring groove intersections between the spherical arc groove 4 and the spherical shell ring groove 7, each arc ring groove intersection is provided with a ball 9, the radius of the ball 9 is consistent with the cross-sectional radius of the spherical arc groove 4, Half of the ball 9 is in the arc groove 4 of the ball like this, and the other half is in the ring groove 7 of the spherical shell. The width of the notch 13 of the convex ring is slightly larger than the diameter of the ball 9 so that the ball 9 in the arc groove 4 of the ball passes through the notch 13 of the convex ring. The size of the spherical shell groove intersection 14 can allow the ball 9 to pass through, and also can allow the spheroid convex ring 3 to pass through.

Wherein, for the convenience of assembly, the spherical shell 6 can be formed by butting two components symmetrical to the center of the concave ring.

Since the reciprocating motion of the ball 9 in the arc groove 4 of the ball may cause harmful compression or expansion of the gas in the arc groove 4 of the ball, further a thin groove (not shown) can be opened at the bottom of the arc groove 4 of the ball to allow The two sides of the ball 9 in the spherical arc groove 4 are connected with gas.

As shown in Figures 6 and 7, the ball 9 is at the left dead center position of the ball arc groove 4, the intersection 14 of the spherical shell groove is occupied by the spherical convex ring 3, and the exhaust valve 11 is closed under the action of the spring force; In the groove 7, a compression space is formed between the ball 9 and the spherical convex ring 3 in the forward direction, and the gas is compressed; at the same time, through the suction hole, the space behind the ball 9 sucks air.

The ball 2 continues to rotate at a certain angle from the position in Figure 6 to the position in Figure 8, at this time the position of the ball 9 in the arc groove 4 of the ball is close to the notch 13 of the convex ring; as shown in Figure 9, the ball 9 in the ring groove 7 of the spherical shell The location is close to the spherical shell groove intersection 14. The spherical shell groove intersection 14 is continued to be occupied by the spheroid convex ring 3, and the exhaust valve 11 is opened under the pressure of the compressed gas (greater than the spring force), and the ball 9 moves to exhaust in the front and inhale in the rear.

After the ball 2 rotates 90° from the position in Figure 6 to the position in Figure 10, the position of the ball 9 is at the middle of the arc groove 4 of the ball, that is, at the position of the notch 13 of the convex ring; as shown in Figure 11, the convex ring The notch 13 reaches the intersection 14 of the spherical shell groove, that is, the intersection 14 of the spherical shell groove is no longer occupied by the spherical convex ring 3, the passage is in an open state, and the ball 9 is also just at the intersection 14 of the spherical shell groove of the spherical shell 6, and can pass through . At this moment, the exhaust of the compressor ends, the exhaust valve 11 is closed, and the compressor neither compresses nor sucks air.

The ball 2 continues to rotate several angles from the position in Figure 10 to the position in Figure 12. At this time, the position of the ball 9 is at a position slightly to the right of the arc groove 4 of the ball; The spheroid convex ring 3 occupies again, and in the spherical shell ring groove 7, the ball 9 is close to the suction port 10, and the ball 9 moves the front to compress the gas, and the rear starts to inhale.

The ball 2 rotates 90° from the position shown in Figure 10 to the position shown in Figure 14. At this time, the ball 9 is at the right dead center of the arc groove 4 of the ball; 3 continues to occupy, the exhaust valve 11 is closed under the action of the spring force; in the spherical shell ring groove 7, the ball 9 forms a compression space between the forward direction and the ball convex ring 3, and the gas is compressed; at the same time, through the suction Hole, ball 9 rear space suction.

As mentioned above, from Fig. 6 to Fig. 15, it shows that after the ball 2 rotates 180° in the spherical shell 6, the two balls 9 respectively realize a process of compression, air intake and exhaust. During this process, the ball 9 moves from the left dead center to the right dead center in the arc groove 4 of the ball, and at the same time rotates 180° in the ring groove 7 of the spherical shell. Due to the symmetry of the structure, the result after the sphere 2 continues to rotate 180° is basically the same as the previous situation, except that the ball 9 returns from the right dead center to the left dead center in the arc groove 4 of the ball, and continues to rotate in the ring groove 7 of the spherical shell at the same time 180° back to the origin shown in Figure 7. After the sphere 2 rotates 360° once in the spherical shell 6, the compressor realizes two compression, suction and exhaust processes.

Claims (7)

1. A spherical ball compressor, characterized in that: comprising a concentric sphere and a spherical shell, the outer diameter of the sphere is slightly smaller than the inner diameter of the spherical shell so that the sphere can rotate in the spherical shell; The outer surface of the sphere is provided with a protruding sphere convex ring and two concave sphere arc grooves, and the two sphere arc grooves are symmetrically arranged at both ends of the sphere, and respectively connected with the sphere convex ring They intersect at an included angle of 90°, and the convex ring of the sphere has two gaps in the convex ring at the two intersections, and the cross section of the arc groove of the sphere is semicircular; The inner surface of the spherical shell is provided with a concave spherical shell ring and a concave spherical shell ring groove, and the spherical shell ring groove and the spherical shell concave ring intersect at an angle of 5-85° to form The spherical shell groove intersection between the two spherical shell ring grooves and the spherical shell concave ring, the spherical shell concave ring is embedded with the spherical convex ring, the cross section of the spherical shell ring groove is the same as the A semicircle with the same size as the cross-section of the spherical arc groove; Two sphere shafts are arranged on the sphere, the sphere shafts are perpendicular to the convex ring of the sphere, the sphere rotates around the sphere shafts, and shaft holes are arranged on the spherical shell, the axes of the shaft holes are in line with the The concave ring of the spherical shell is vertical, and the shaft of the ball passes through the shaft hole and is connected with the driving machine; There are two arc ring groove intersections between the sphere arc groove and the spherical shell ring groove, each of the arc ring groove intersections is provided with a ball, and the radius of the ball is the same as the cross section of the sphere arc groove. Consistent radius; On both sides of the junction of each of the spherical shell grooves, there are respectively provided air suction ports and exhaust ports, both of which communicate with the spherical shell ring grooves, and on the exhaust ports Equipped with exhaust valve. 2. The spherical ball compressor according to claim 1, characterized in that: the cross section of the spherical convex ring is rectangular, and the cross section of the spherical shell concave ring is the same size as the cross section of the spherical convex ring rectangle. 3. The spherical ball compressor according to claim 1, characterized in that: the angle between the ring groove of the spherical shell and the concave ring of the spherical shell is 45°. 4. The spherical ball compressor according to claim 1, wherein the larger the angle between the spherical shell ring groove and the spherical shell concave ring, the longer the arc length of the spherical arc groove. 5. The spherical ball compressor according to claim 1, characterized in that: the width of the notch of the convex ring is slightly larger than the diameter of the semicircular cross-section of the arc groove of the sphere. 6. The spherical ball compressor according to claim 1, characterized in that: the spherical shell is formed by butting two symmetrical parts about the center of the concave ring. 7. The spherical ball compressor according to claim 1, wherein a thin groove is formed at the bottom of the arc groove of the sphere.