CN203835721U - Translation rotary type compression machine - Google Patents

Abstract

The utility model relates to a translation rotary type compression machine comprising a cylinder, a rotor, an eccentric shaft, an upper sliding plate and a lower sliding plate, wherein the cylinder is provided with a first air inlet, a second air inlet, a first air outlet, a second air outlet and a sliding plate guide seat; the first air outlet and the second air outlet are both provided with air outlet valves; the rotor is provided with a sliding plate slot; a geometric center of the rotor is concentric with a crank throw of the eccentric shaft; a gyration center of the eccentric shaft is concentric with the geometric center of the cylinder; the eccentric shaft is provided with a bearing; the gyration radius of the eccentric shaft is equal to difference of the inside radius of the cylinder and the radius of the rotor. The outer surface of the rotor is always tangent with one position of the inner surface of the cylinder at any instantaneous operation, a crescent chamber is divided into an air inlet chamber and a compression chamber by the inner surface of the cylinder, the outer surface of the rotor and two sliding plates, the position of the second air inlet is larger than alpha<0>max, the expression formula is as shown in the specification, the position of the second air outlet is between 0 and beta<0>max, and the expression formula is as shown in the specification.

Description

Translation revolving compressed machinery

Technical field

The utility model technology relates to compressor and fluid pump field, be specifically related to a kind of novel translation revolving compressed machinery, both can compress various gas, as refrigeration, idle call compressor or as aerodynamic force compressor, also can use in various fluid pumps field.

Background technique

In positive displacement compressor, there are two types as the compressor of plane motion type, i.e. rolling rotor type compressor and scroll compressor.In compressor with rolling rotor, rotor is that bias is configured in cylinder, when under the drive of rotor at live axle, in the time that cylinder axis rotates, the internal surface that the outer surface of rotor is affixed on cylinder slides, slide plate head is close on the outer surface of rotor under the effect of spring force, thus, the outer surface of rotor, between the internal surface of cylinder and slide plate, form a swept volume, this swept volume increases along with the increase of angle of rotor, in the time that swept volume reaches maximum, complete an air-breathing process, at this moment rotor revolves and turns around, be that corner is 360 °, rotor continues rotation, this swept volume reduces along with the increase of corner, at this moment the gas in swept volume is compressed, in the time that the pressure of swept volume gas reaches the required pressure of system, gas is discharged by the outlet valve being arranged on cylinder, completed one air-breathing, compression and exhaust work circulation.When gas in swept volume is compressed, often in order to reduce the leakage of gas from compression chamber to air aspiration cavity, slide plate head must be close to the outer surface of rotor and act on certain pressure, not only cause so on the one hand slide plate head and rotor outer surface to produce larger fretting wear, increase energy loss, also made the poor reliability of machine simultaneously.What is more important, compressor with rolling rotor every two turns just can complete a work cycle, and efficiency is low, and volume is large.Scroll compressor is to rely on arrestment mechanism to change the rotation motion of main shaft the plane motion of Moving plate around quiet dish into, the a pair of active chamber of outmost turns opens gradually along with the rotation of main shaft, gas enters active chamber by the intakeport that is arranged on quiet dish outside, the gas entering increases along with the increase of corner, until reach maximum, finally form the crescent shape active chamber of sealing, complete a breathing process, along with main shaft continues rotation, Moving plate just looks like a piston, gas in active chamber is passed to center from outer ring, meanwhile active chamber can dwindle gradually, gas is received compression, finally discharged by center hole.Although scroll compressor changes the rotation motion of main shaft the plane motion of Moving plate around quiet dish into, reduced speed of related movement, reduced fretting wear, but the sealing of active chamber gas is to rely on the precision of profile processing to ensure, processing technology requires very strict, and manufacture cost is high.What is more important, the relief opening of scroll compressor must be opened in certain fixing position, center, form fixing compression ratio, requirement operating conditions is stable, but in fact system pressure and suction pressure constantly change often, therefore the problem of overcompression and insufficient compression is apparent and is difficult to avoid, and has not only caused energy loss, and may cause operating safe failure.

Model utility content

Model utility object: for overcoming above-mentioned defect, it is a kind of simple in structure that the utility model provides, and reliability is high, the translation revolving compressed machinery of low cost of manufacture.

Technological scheme: translation revolving compressed machinery, comprise cylinder (1), rotor (2), eccentric shaft (13), upper slide (5) and lower skateboard (12), the outer cylinder head plate that arranges of described cylinder (1), on described cylinder (1), be provided with the first suction port (14), the second suction port (16) and first row gas port (15), second row gas port (17), and slide plate guide holder (4), be provided with several for the bolt hole (6) being connected with described cylinder cover plate simultaneously, described first row gas port (15), second row gas port (17) is placed in respectively the rear of described upper slide (5) and lower skateboard (12) sense of rotation, described first row gas port (15) and second row gas port (17) arrange respectively outlet valve (18), described the first suction port (14) and the second suction port (16) are separately positioned on the front in described upper slide (5) and described lower skateboard (12) sense of rotation, described the second suction port (16) is provided with suction valve (19), described cylinder (1) outer surface is provided with radiating fin (11), described rotor (2) is hollow cylindrical body, be provided with the first skateboards slot (3) and the second skateboards slot (8), the internal surface of described rotor (2) is provided with several radial ribs (9), in described the second skateboards slot (8), be provided with spring (10), described eccentric shaft (13) is provided with bearing (7), the turning radius of described eccentric shaft (13) equals the poor of the inside radius of described cylinder (1) and the outer radius of described rotor (2), the gyration center of described eccentric shaft (13) is concentric with the geometrical center of described cylinder (1), the geometrical center of described rotor (2) is concentric with the crank throw of described eccentric shaft (13), the head of described upper slide (5) is cylindrical body, main body is flat, its cylindrical body head embeds in described slide plate guide holder (4), the main body of described upper slide (5) extends in first skateboards slot (3) of described rotor (2), described lower skateboard (12) is flat, its head is cylindrical, this lower skateboard (12) is arranged in described the second skateboards slot (8), its cylindrical head is close to the internal surface of described cylinder (1) under the effect of described spring (10), the outer surface of described rotor (2), the internal surface of described cylinder (1) surrounds meniscate cavity volume, described upper slide (5), this meniscate cavity volume is divided into air-inlet cavity and compression chamber by described lower skateboard (12).

As preferably, the turning radius of described eccentric shaft (13) equals the poor of the inside radius of described cylinder (1) and the outer radius of described rotor (2).

As preferably, the position of the first suction port (14) and first row gas port (15) is set, respectively at front and the rear of described upper slide (5) sense of rotation on described cylinder (1).

As preferably, the position of described the second suction port (16) is in the front of the sense of rotation of described lower skateboard (12), and its lower edge must be greater than ${\mathrm{\&alpha;}}_{\max }^0=\arcsin \left(\frac{e}{R}\right)=\arcsin (1-\frac{r}{R})$ (wherein, e is the turning radius of eccentric shaft (13), and R is the inside radius of described cylinder (1), and r is the outer radius of described rotor (2).

As preferably, the position of described second row gas port (17) is at the rear of the sense of rotation of described lower skateboard (12), and its position is positioned at in angle, ${\mathrm{\&beta;}}_{\max }^0=\arcsin \left(\frac{e}{R}\right)=\arcsin (1-\frac{r}{R})$ (wherein, e is the turning radius of eccentric shaft (13), and R is the inside radius of described cylinder (1), and r is the outer radius of described rotor (2)), the upper edge of this second row gas port (17) is less than

As preferably, described upper slide (5) head is cylindrical body, and its main body is flat, and described lower skateboard (12) is flat, its head is cylindrical body, has oil groove in the main body of this upper slide (5) and this lower skateboard (12).

As preferably, the axial length of described cylinder (1), rotor (2), upper slide (5) and lower skateboard (12) all equates.

As preferably, described lower skateboard (12) is at the internal surface of this cylinder (1) in angle, do slightly to swing.

As preferably, described the second suction port (16) is provided with suction valve (19).

As preferably, described air-inlet cavity is divided into the first air-inlet cavity (20), the second air-inlet cavity (21); Described compression chamber is divided into the first compression chamber (22), the second compression chamber (23).

Useful effect: the translation revolving compressed machinery that the utility model proposes, formed by two cylindrical bodys, working surface is cylndrical surface, and processing technology is simple, has reduced manufacture cost; Translation revolving compressed machinery is in one turns, and work cavity volume is worked simultaneously, in a work cycle, has exhaust process twice, and under same volume, the more conventional compressor of the same type of air displacement has increased more than 80%, and efficiency is high, volume is little; In the time that gas is compressed, compression chamber always communicates with outlet valve, has solved the industrial problem of rotary compressor overcompression and insufficient compression, has both reduced power loss, the unsafe fault of liquid hammer of having avoided again traditional compressor to occur; In translation revolving compressed machinery, pressurized gas are sealed in internal surface, the outer surface of rotor and the crescent shape volume of slide plate composition of cylinder, and the outer surface of rotor and the internal surface of cylinder are arc surface, good sealing effect, leak little, and also sealed by slide plate plane by the Leakage Gas of slide plate, the plane of slide plate easily obtains higher machining accuracy on the one hand, gap easily ensures, gas has throttling after skateboards slot on the other hand, be equivalent to labyrinth sealing mode, therefore translation revolving compressed machinery volumetric efficiency is high; Rotor is the gyration center fixed-axis rotation around eccentric shaft, and its centrifugal inertia force can obtain balance completely, and machine vibration is little, smooth running.Translation revolving compressed machinery is in operation process, and upper and lower slide plate is done slightly to swing around cylinder all the time, and its fretting wear is little, low in energy consumption, and functional reliability is high.

Brief description of the drawings

Fig. 1 is the structural representation of translation revolving compressed machinery;

Fig. 2 is the working procedure schematic diagram of translation rotating compressed machinery, wherein a) the schematic cross-section while being θ=0 °, b) schematic cross-section while being θ=90 °, the schematic cross-section while being c) θ=180 °, the schematic cross-section while being d) θ=270 °;

Fig. 3 is the structural representation of upper slide, lower skateboard, a) is wherein upper slide schematic diagram, is b) lower skateboard schematic diagram;

Fig. 4 is the aperture position sketch of the first suction port, the second suction port, first row gas port, second row gas port.

Embodiment

Below in conjunction with accompanying drawing and instantiation, the utility model type technology is described further, but protection domain of the present utility model is not limited to following example.For those skilled in the art; under enlightenment of the present utility model; can from this patent disclosure, directly derive the identical basic deformation of some principles of association; or the substituting of conventional known technology in prior art; and the identical mutual various combination of feature, the technical characteristics of same or similar technique effect simply change, all belong to the protection domain of the utility model technology.

Referring to accompanying drawing 1 and Fig. 2, translation revolving compressed machinery, it is characterized in that: the outer surface that comprises cylinder 1, rotor 2, eccentric shaft 13, upper slide 5 and lower skateboard 12, cylinder 1 arranges cylinder cover plate the first suction port 14 and the second suction port 16, first row gas port 15 and second row gas port 17.On described cylinder 1, be provided with the first suction port 14, the second suction port 16 and first row gas port 15, second row gas port 17 and slide plate guide holder 4, first row gas port 15 is placed in the rear of upper slide 5 sense of rotation, second row gas port 17 is placed in the rear of the sense of rotation of lower skateboard 12, the first suction port 14 is placed in the front of upper slide 5 sense of rotation, the second suction port 16 is also placed in the front of lower skateboard 12 sense of rotation, be provided with several for the bolt hole 6 being connected with cylinder cover plate simultaneously, at first row gas port 15, the 2 17 is provided with outlet valve 18, the second suction port 16 is provided with suction valve 19.On described rotor 2, be provided with the first skateboards slot 3 and the second skateboards slot 8, in the second skateboards slot 8, be provided with spring 10, the geometrical center of rotor 2 is concentric with the crank throw of eccentric shaft 13.Described eccentric shaft 13 is provided with bearing 7, to reduce the fretting wear of eccentric shaft 13 and rotor 2, the turning radius of eccentric shaft 13 equals the poor of the inside radius of cylinder 1 and the outer radius of rotor 2, the gyration center of eccentric shaft 13 is concentric with the geometrical center of cylinder 1, when eccentric shaft 13 is in the time that the geometrical center of cylinder 1 is turned round, the internal surface of the outer surface of rotor 2 and cylinder 1 always has a place tangent, to form the swept volume of sealing, rotor 2 can be made hollow, to reduce rotating mass, in order to increase the rigidity of rotor 2, be provided with several radial ribs 9 at the internal surface of rotor 2.

Fig. 3 a) shown in, described upper slide 5 heads are cylindrical body, its main body is flat, be provided with oil groove in upper slide 5 main bodys, to ensure the good lubrication of upper slide 5, the cylindrical head of upper slide 5 embeds in the slide plate guide holder 4 of cylinder 1, and the main body of its upper slide 5 extends in the first skateboards slot 3 of rotor 2.

Fig. 3 b) shown in, lower skateboard 12 is flat, its head is cylindrical body, be provided with oil groove at lower skateboard 12 equally, to ensure the good lubrication of lower skateboard 12, the cylindrical head of lower skateboard 12 is pressed in the internal surface of cylinder 1 under the effect of spring 10, its lower skateboard 12 main bodys extend in the second skateboards slot 8 of rotor 2, described upper slide 5, this meniscate cavity volume is divided into air-inlet cavity and compression chamber by described lower skateboard 12, this compression chamber and air-inlet cavity play the effect of sealing gas simultaneously, when eccentric shaft 13 is in the time that the geometrical center of cylinder 1 is turned round, the outer surface of rotor 2 is in the tangent slip of internal surface of cylinder 1, slide plate 12 is done small size swing around cylinder 1, its angle of oscillation is 2 α _max, (wherein, e is the turning radius of eccentric shaft 13, and R is the inside radius of cylinder 1, and r is the outer radius of rotor 2).The outer surface of described rotor 2, the internal surface of described cylinder 1 surround meniscate cavity volume, this meniscate cavity volume has been divided into air-inlet cavity and compression chamber by upper slide (5), described lower skateboard (12), along with the outer surface of rotor 2 is in the time that the internal surface of cylinder 1 slides, the first air-inlet cavity 20, the second air-inlet cavity 21 and the first compression chamber 22, the second compression chamber 23 are formed.

As Fig. 2, Fig. 3, shown in Fig. 4, in the time of eccentric shaft 13 rotational angle theta=0 °, left side crescent shape cavity volume is that the gas in the first compression chamber 22 is all discharged, exhaust finishes, its first compression chamber 22 disappears thereupon, and the crescent shape cavity volume on the right side has been full of by gas, be about to start compression, eccentric shaft 13 continues rotation, right side crescent shape cavity volume dwindles gradually, the first air-inlet cavity 20 occurs and expands gradually, gas flows in the first air-inlet cavity 20 through the first suction port 14, start air inlet, meanwhile left side work cavity volume i.e. the second air-inlet cavity 21 also continues to expand, gas enters the second air-inlet cavity 21 from the second suction port 16 by suction valve 19, the second 23 of compression chambers start to dwindle gradually, pressure improves gradually and starts compression process.In the time of eccentric shaft 13 rotational angle theta=90 °, it is intake process that the first air-inlet cavity 20 continues air inlet, gas enters the first air-inlet cavity 20 from the first suction port 14, the second 23 of compression chambers continue to be reduced into compression chamber, eccentric shaft 13 continues rotation, the first air-inlet cavity 20 constantly expands, the second 23 of compression chambers dwindle continuously, the second compression chamber 23 communicates with the outlet valve 18 that is arranged on second row gas port 17 all the time, in the time that the pressure of the second compression chamber 23 equals or is a bit larger tham the desired pressure of system, outlet valve 18 is opened, gas is discharged from the second compression chamber 23 through outlet valve 18, exhaust process starts, because the second compression chamber 23 is communicated with outlet valve 18 all the time, so as long as when the gas pressure in the second compression chamber 23 equals or is a bit larger tham the desired pressure of system, outlet valve 18 exhaust that will be opened, gas is discharged by the outlet valve 18 that is arranged on second row gas port 17, the insufficient compression that usually occurs in rotary compressor and the problem of overcompression are stopped.In the time of eccentric shaft 13 rotational angle theta=180 °, the gas in the second compression chamber 23 is all discharged, and exhaust process finishes, and the second compression chamber 23 also disappears thereupon.Along with eccentric shaft 13 continues rotation, the first 22 of compression chambers dwindle gradually, pressure improves and starts compression process gradually, meanwhile, the second air-inlet cavity 21 occurs and expands gradually, gas enters the second air-inlet cavity 21 by the second suction port 16 by suction valve 19, and the right side the first air-inlet cavity 20 continues to expand, still in the charging stage, in the time that the pressure of gas in the first compression chamber 22 meets system pressure and requires, outlet valve 18 is opened, gas in the first compression chamber 22 is discharged from outlet valve 18 through first row gas port 15, because the first compression chamber 22 communicates with the outlet valve 18 that is arranged on first row gas port 15 all the time, in the time that the pressure in the first compression chamber 22 equals or is a bit larger tham the desired pressure of system, outlet valve 18 is opened, gas is discharged the first compression chamber 22 through outlet valve 18 from first row gas port 15, exhaust process starts, the insufficient compression that usually occurs in rotary compressor and the problem of overcompression are stopped equally.In the time of eccentric shaft 13 rotational angle theta=270 °, the second air-inlet cavity 21 continues to expand and air inlets, and the first compression chamber 22 continues compression or exhausts.In the time of eccentric shaft 13 rotational angle theta=360 °, the gas in the first compression chamber 22 is all discharged, and exhaust process finishes, and the first compression chamber 22 also disappears thereupon, and the first air-inlet cavity 20 is full of by gas again, and compressor has completed a work cycle.

The position of the first suction port 14 and first row gas port 15, respectively at front and the rear of upper slide 5 sense of rotation, as long as ensure the intensity of the slide plate guide holder 4 of cylinder 1, is best apart from slide plate proximal most position.Fig. 4 has represented the position of second row gas port 17 and the second suction port 16, and first row gas port 17 must be arranged on in, the upper edge of its relief opening is not more than ${\mathrm{\&beta;}}_{\max }=\arcsin \left(\frac{e}{R}\right)=\arcsin (1-\frac{r}{R})$ (wherein, e is the turning radius of eccentric shaft 13, and R is the inside radius of cylinder 1, and r is the outer radius of rotor 2), ensures that the gas of the second compression chamber is all discharged, clearance volume minimum, and the lower edge of the position of the second suction port 16 must be greater than ${\mathrm{\&alpha;}}_{\max }=\arcsin \left(\frac{e}{R}\right)=\arcsin (1-\frac{r}{R}),$ The meaning of symbol is the same, abundant to ensure the second air-inlet cavity air inlet, is provided with suction valve 19 at the second suction port 16, and to prevent gas backflow, guaranteeing has maximum volumetric efficiency.

Claims (10)

1. translation revolving compressed machinery, comprise cylinder (1), rotor (2), eccentric shaft (13), upper slide (5) and lower skateboard (12), it is characterized in that: the outer cylinder head plate that arranges of described cylinder (1), on described cylinder (1), be provided with the first suction port (14), the second suction port (16) and first row gas port (15), second row gas port (17), and slide plate guide holder (4), be provided with several for the bolt hole (6) being connected with described cylinder cover plate simultaneously, described first row gas port (15), second row gas port (17) is placed in respectively the rear of described upper slide (5) and lower skateboard (12) sense of rotation, described first row gas port (15) and second row gas port (17) arrange respectively outlet valve (18), described the first suction port (14) and the second suction port (16) are separately positioned on the front in described upper slide (5) and described lower skateboard (12) sense of rotation, described the second suction port (16) is provided with suction valve (19), described cylinder (1) outer surface is provided with radiating fin (11), described rotor (2) is hollow cylindrical body, be provided with the first skateboards slot (3) and the second skateboards slot (8), the internal surface of described rotor (2) is provided with several radial ribs (9), in described the second skateboards slot (8), be provided with spring (10), described eccentric shaft (13) is provided with bearing (7), the turning radius of described eccentric shaft (13) equals the poor of the inside radius of described cylinder (1) and the outer radius of described rotor (2), the gyration center of described eccentric shaft (13) is concentric with the geometrical center of described cylinder (1), the geometrical center of described rotor (2) is concentric with the crank throw of described eccentric shaft (13), the head of described upper slide (5) is cylindrical body, main body is flat, its cylindrical body head embeds in described slide plate guide holder (4), the main body of described upper slide (5) extends in first skateboards slot (3) of described rotor (2), described lower skateboard (12) is flat, its head is cylindrical, this lower skateboard (12) is arranged in described the second skateboards slot (8), its cylindrical head is close to the internal surface of described cylinder (1) under the effect of described spring (10), the outer surface of described rotor (2), the internal surface of described cylinder (1) surrounds meniscate cavity volume, described upper slide (5), this meniscate cavity volume is divided into air-inlet cavity and compression chamber by described lower skateboard (12).

2. translation revolving compressed machinery according to claim 1, is characterized in that: the turning radius of described eccentric shaft (13) equals the poor of the inside radius of described cylinder (1) and the outer radius of described rotor (2).

3. translation revolving compressed machinery according to claim 1, it is characterized in that: the position of the first suction port (14) and first row gas port (15) is set, respectively at front and the rear of described upper slide (5) sense of rotation on described cylinder (1).

4. translation revolving compressed machinery according to claim 1, is characterized in that: the position of described the second suction port (16) is in the front of the sense of rotation of described lower skateboard (12), and its lower edge must be greater than (wherein, e is the turning radius of eccentric shaft (13), and R is the inside radius of described cylinder (1), and r is the outer radius of described rotor (2).

5. translation revolving compressed machinery according to claim 1, is characterized in that: the position of described second row gas port (17) is at the rear of the sense of rotation of described lower skateboard (12), and its position is positioned at in angle, (wherein, e is the turning radius of eccentric shaft (13), and R is the inside radius of described cylinder (1), and r is the outer radius of described rotor (2)), the upper edge of this second row gas port (17) is less than

6. translation revolving compressed machinery according to claim 1, it is characterized in that: described upper slide (5) head is cylindrical body, its main body is flat, described lower skateboard (12) is flat, its head is cylindrical body, has oil groove in the main body of this upper slide (5) and this lower skateboard (12).

7. translation revolving compressed machinery according to claim 1, is characterized in that: the axial length of described cylinder (1), rotor (2), upper slide (5) and lower skateboard (12) all equates.

8. translation revolving compressed machinery according to claim 1, is characterized in that: described lower skateboard (12) is at the internal surface of this cylinder (1) in angle, do slightly to swing.

9. translation revolving compressed machinery according to claim 1, is characterized in that: described the second suction port (16) is provided with suction valve (19).

10. translation revolving compressed machinery according to claim 1, is characterized in that: described air-inlet cavity is divided into the first air-inlet cavity (20), the second air-inlet cavity (21); Described compression chamber is divided into the first compression chamber (22), the second compression chamber (23).