CN216406910U - Positive displacement spiral disk rotor fluid machinery device - Google Patents

Abstract

The utility model provides a variable-capacity spiral disk rotor fluid mechanical device which comprises a rotating shaft, a spiral disk rotor, a cylinder body, a cover body, a sliding plate and a reset element, wherein the spiral disk rotor rotates along with the rotating shaft, the spiral disk rotor is provided with a spiral sheet, the upper end of the spiral sheet is provided with a first sealing surface, and the lower end of the spiral sheet is provided with a second sealing surface; the cylinder body is sleeved outside the spiral disc rotor; the two cover bodies are arranged at two ends of the cylinder body, the spiral sheet divides the cylinder body into two cavities, the two cover bodies are respectively in sealing contact with the first sealing surface and the second sealing surface, the cover bodies are provided with sliding grooves, and a component formed by the cover bodies and the cylinder body is provided with a first flow passage and a second flow passage; the two sliding plates are arranged in the two sliding grooves in a sliding manner, the sliding plates are used for dividing the cavity into a high-pressure cavity and a low-pressure cavity, and the first flow passage and the second flow passage are respectively used for being communicated with the high-pressure cavity and the low-pressure cavity; the reset element brings the slide plate into contact with the helical disk rotor. The utility model has large available cavity and high utilization rate.

Description

Positive displacement spiral disk rotor fluid machinery device

Technical Field

The utility model belongs to the technical field of fluid mechanical engineering, and particularly relates to a variable-volume type spiral disk rotor fluid mechanical device.

Background

In recent years, under the high pressure of energy crisis and environmental protection requirements, high efficiency, energy conservation, emission reduction and low carbon have become the subjects of the development of variable-capacity helical disk rotor fluid mechanical devices. Conventional positive displacement helical disk rotor fluid machines also exhibit disadvantages arising from structure and features.

A conventional positive displacement helical disk rotor fluid machine is a type of positive displacement rotary fluid machine. A rotor sliding vane capable of sliding along the radial direction of a rotor of the variable-volume rotary fluid machine is arranged on the rotor, one end of the rotor sliding vane extends out of the peripheral wall of the rotor, and the extending end of the rotor sliding vane is always in contact with the cavity wall of a working cavity where the rotor is located. Because the working chamber in which the rotor rotates is not concentric with the rotor, the lengths of the rotor sliding sheets extending out of the peripheral wall of the rotor are different at different positions. When the rotor rotates, the rotor sliding vane makes radial reciprocating motion. The structure has the advantages that the rotor has the effect of working in the closed space environment with variable volume, and the rotor directly rotates; the rotor slip sheet has the disadvantages that the rotor slip sheet can only do radial fluctuation relatively, and only the space outside the rotor outer ring is available, the space is small, and the utilization rate is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a variable-volume type spiral disk rotor fluid mechanical device, and aims to solve the problems that rotor sliding vanes of the conventional variable-volume type rotary fluid mechanical device can only do radial fluctuation relatively, only the space outside the outer ring of a rotor is available, the space is small, and the utilization rate is low.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a variable-capacity spiral disk rotor fluid mechanical device, which comprises a rotating shaft, a spiral disk rotor, a cylinder body, two cover bodies, two sliding plates and a reset element, wherein the spiral disk rotor is arranged on the rotating shaft and can rotate along with the rotating shaft; the cylinder body is of an annular structure, the cylinder body is sleeved outside the spiral disc rotor, and the peripheral surface of the spiral sheet is in sealing contact with the inner wall of the cylinder body; the two cover bodies are respectively arranged at two ends of the cylinder body, the spiral sheet divides the cylinder body into an upper cavity and a lower cavity, one of the cover bodies is in sealing contact with a first sealing surface of the spiral disc rotor, the other cover body is in sealing contact with a second sealing surface of the spiral disc rotor, a sliding groove is arranged on the end surface of the cover body and penetrates through the cover bodies, a component formed by the cover bodies and the cylinder body is provided with a first flow passage and a second flow passage, and the first flow passage and the second flow passage are respectively positioned at two sides of the sliding groove; the two sliding plates are respectively arranged in the two sliding grooves in a sliding manner, one end, close to the spiral disk rotor, of each sliding plate is in contact with the spiral disk rotor, each sliding plate is used for dividing the cavity into a high-pressure cavity and a low-pressure cavity, and the first flow channel and the second flow channel are respectively used for being communicated with the high-pressure cavity and the low-pressure cavity; the reset element is used for enabling the sliding plate to be always in contact with the spiral disk rotor.

In a possible implementation manner, the first flow channel comprises two first inflow and outflow channels, the second flow channel comprises two second inflow and outflow channels, each cover body is provided with a first inflow and outflow channel and a second inflow and outflow channel, a sliding chute is arranged between the first inflow and outflow channels on the same cover body, the first inflow and outflow channel and the second inflow and outflow channel on the same cover body are respectively communicated with a high-pressure cavity and a low-pressure cavity separated by a sliding plate on the cover body, the first inflow and outflow channel comprises a first inflow and outflow hole and a third inflow and outflow hole which are communicated, the second inflow and outflow channel comprises a second inflow and outflow hole and a fourth inflow and outflow hole which are communicated, the first inflow and outflow hole and the second inflow and outflow hole are positioned at the end part of the cover body, the third inflow and outflow hole and the fourth inflow and outflow hole are positioned on the peripheral surface of the cover body, the first inflow and outflow holes on the cover bodies are positioned on the same straight line, the second inlet and outlet holes on each cover body are positioned on the same straight line, and the sliding grooves on each cover body are positioned on the same straight line.

In one possible implementation, the first flow passage and the second flow passage are both disposed on the cylinder body, the first flow passage is a fifth inlet/outlet hole, the second flow passage is a sixth inlet/outlet hole, and the fifth inlet/outlet hole and the sixth inlet/outlet hole are both disposed on the circumferential wall of the cylinder body.

In one possible implementation, the included angle is 180 degrees.

In a possible implementation manner, the reset element is two springs, and the two springs are respectively positioned at the outer sides of the two cover bodies and are connected with the sliding plates in a one-to-one correspondence manner.

In a possible implementation mode, the cover body and the cylinder body are respectively provided with an avoiding groove, the same connecting piece is arranged in the avoiding groove in a penetrating mode, the avoiding groove in the cover body is communicated with the sliding groove, and the sliding plate is connected with the connecting piece.

In one possible implementation, the spiral disk rotor has a center post, the center post is connected to the rotating shaft, the spiral sheet is disposed on the center post, the first sealing surface is coplanar with the upper end surface of the center post, and the second sealing surface is coplanar with the lower end surface of the center post.

In a possible implementation mode, the upper end face and the lower end face of the center column are provided with annular first sealing grooves, the first sealing surfaces and the second sealing surfaces are provided with second sealing grooves, the second sealing grooves are communicated with the first sealing grooves on the same plane, plane sealing strips are arranged in the first sealing grooves and the second sealing grooves, the peripheral wall of the spiral piece is provided with a third sealing groove, peripheral wall sealing strips are arranged in the third sealing groove, and the spiral piece is in sealing contact with the cylinder body through the peripheral wall sealing strips.

In a possible implementation mode, set up a plurality of spiral disk rotors in the pivot, the spiral disk rotor sets up along the axis direction looks interval of pivot, a cylinder body is all established to every spiral disk rotor overcoat, the axis direction cylinder body and the lid along the pivot set up in turn in proper order, the quantity of lid is more one than the quantity of cylinder body, all set up a slide in the spout of every lid, in the sub-assembly that cylinder body and lid in turn formed, two slides that are located both ends are connected with two reset element one-to-one respectively, the both ends of the slide that are located the middle part contact with the flight of both sides respectively, first business turn over discharge orifice and second business turn over discharge orifice on the lid that is located between two cylinder bodies are the through hole.

In a possible implementation mode, a plurality of spiral disk rotors are arranged on the rotating shaft, the spiral disk rotors are arranged at intervals along the axis direction of the rotating shaft, each spiral disk rotor is externally sleeved with a cylinder body, the cylinder bodies and the cover bodies are sequentially and alternately arranged along the axis direction of the rotating shaft, the number of the cover bodies is one more than that of the cylinder bodies, a sliding plate is arranged in a sliding groove of each cover body, and the sliding plates are connected through a connecting piece in the avoiding groove.

This implementation mode, compared with the prior art, set up the spiral disk rotor in the pivot, the cylinder body of loop configuration is established to spiral disk rotor overcoat, the both sides of cylinder body respectively set up a lid respectively, lid and cylinder body form seal space, the spiral disk rotor passes through flight and cylinder body sealing contact and separates for two upper and lower cavitys in the cylinder body, set up the spout on the lid, slide in the spout and set up the slide, the slide is close to flight one end and passes through reset element and flight contact all the time, separate the cavity at place for high-pressure chamber and low-pressure chamber. When the spiral disk rotor rotates along with the rotating shaft, the pushing sliding plate slides in an up-and-down mode along the axial direction of the rotating shaft, and the volume change of a high-pressure cavity and a low-pressure cavity separated by the sliding plate is achieved. The upper cavity and the lower cavity which are separated by the spiral sheet are available spaces, and compared with the traditional variable-volume rotary fluid machine, the variable-volume rotary fluid machine has the advantages that the available space volume is larger, and the utilization rate is higher. And a first flow channel and a second flow channel are arranged on an assembly formed by the cover body and the cylinder body, and the first flow channel and the second flow channel are respectively communicated with the high-pressure cavity and the low-pressure cavity. And determining which of the first flow channel and the second flow channel is used for inflow and which is used for outflow according to the actual application requirement. When the power machine is used, namely the energy of fluid is converted into power, the flow channel for outflow is connected with a low-pressure cavity, and the flow channel for inflow is connected with a high-pressure cavity; when the sliding plate is used as a pump and a compressor, namely power is converted into fluid energy, a flow passage for outflow is connected with a high-pressure cavity, a flow passage for inflow is connected with a low-pressure cavity, pressure difference on two sides of the sliding plate is a key for realizing mutual conversion of mechanical motion and fluid energy, and the larger the available conversion space is, the more single energy conversion is, and the higher the efficiency is.

Drawings

FIG. 1 is a schematic structural diagram of a variable displacement helical disk rotor fluid machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a variable displacement helical disk rotor fluid mechanical device according to an embodiment of the present invention with a cylinder removed;

FIG. 3 is a schematic structural diagram of a cover body used in the present invention;

FIG. 4 is a schematic structural view of a cylinder employed in the present invention;

FIG. 5 is a schematic structural view of a spiral disk rotor employed in the present invention;

FIG. 6 is a schematic view of another side of the spiral disk rotor of FIG. 5;

FIG. 7 is a schematic structural view of a spiral disk rotor used in another embodiment of the present invention;

FIG. 8 is a schematic view of a connection structure of a slide plate and a connecting member according to another embodiment of the present invention;

FIG. 9 is a schematic view of a variable displacement helical disk rotor fluid machine according to another embodiment of the present invention with the cylinder removed;

FIG. 10 is a schematic structural view of a cylinder block employed in another embodiment of the present invention;

fig. 11 is a schematic structural view of a cylinder body used in another embodiment of the present invention.

Description of reference numerals:

1. a rotating shaft; 2. a first inlet and outlet orifice; 3. a cover body; 4. a third inlet and outlet flow aperture; 5. a cylinder body; 6. a fourth inlet and outlet orifice; 7. a second inlet and outlet orifice; 8. a slide plate; 9. a spring; 10. a spiral disk rotor; 10a, a first sealing surface; 10b, a second sealing surface; 101. a central column; 102. a spiral sheet; 11. a chute; 12. a first seal groove; 13. a second seal groove; 14. a third seal groove; 15. a connecting member; 16. an avoidance groove; 17. A fifth inlet and outlet orifice; 18. a sixth inlet and outlet orifice.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 6, a fluid machinery apparatus of a variable displacement type helical disk rotor according to the present invention will be described. The variable-volume spiral disk rotor fluid mechanical device comprises a rotating shaft 1, a spiral disk rotor 10, a cylinder body 5, two cover bodies 3, two sliding plates 8 and a reset element, wherein the spiral disk rotor 10 is arranged on the rotating shaft 1, the spiral disk rotor 10 can rotate along with the rotating shaft 1, the spiral disk rotor 10 is provided with a spiral sheet 102, the upper end surface of the spiral sheet 102 is provided with a first sealing surface 10a, the lower end surface of the spiral sheet 102 is provided with a second sealing surface 10b, and an included angle is formed between the connecting line of the middle part of the first sealing surface 10a and the center of the spiral disk rotor 10 and the connecting line of the middle part of the second sealing surface 10b and the center of the spiral disk rotor 10; the cylinder body 5 is of an annular structure, the cylinder body 5 is sleeved outside the spiral disc rotor 10, and the peripheral surface of the spiral sheet 102 is in sealing contact with the inner wall of the cylinder body 5; the two cover bodies 3 are respectively arranged at two ends of the cylinder body 5, the spiral sheet 102 divides the interior of the cylinder body 5 into an upper cavity and a lower cavity, one of the cover bodies 3 is in sealing contact with a first sealing surface 10a of the spiral disc rotor 10, the other cover body 3 is in sealing contact with a second sealing surface 10b of the spiral disc rotor 10, a sliding groove 11 is arranged on the end surface of the cover body 3, the sliding groove 11 penetrates through the cover body 3, a first flow channel and a second flow channel are arranged on a component formed by the cover body 3 and the cylinder body 5, and the first flow channel and the second flow channel are respectively positioned at two sides of the sliding groove 11; the two sliding plates 8 are respectively arranged in the two sliding grooves 11 in a sliding manner, one end, close to the spiral disk rotor 10, of each sliding plate 8 is in contact with the spiral disk rotor 10, each sliding plate 8 is used for dividing the cavity into a high-pressure cavity and a low-pressure cavity, and the first flow channel and the second flow channel are respectively used for being communicated with the high-pressure cavity and the low-pressure cavity; the return element serves to keep the slide plate 8 in contact with the spiral disk rotor 10 at all times.

Compared with the prior art, the variable-capacity spiral disk rotor fluid mechanical device provided by the embodiment comprises a rotating shaft 1, a spiral disk rotor 10 is arranged on the rotating shaft 1, a cylinder body 5 with an annular structure is sleeved outside the spiral disk rotor 10, two sides of the cylinder body 5 are respectively provided with a cover body 3, the cover bodies 3 and the cylinder body 5 form a sealed space, the spiral disk rotor 10 is in sealed contact with the cylinder body 5 through a spiral sheet 102 and divides the inside of the cylinder body 5 into an upper cavity and a lower cavity, a sliding groove 11 is arranged on the cover body 3, a sliding plate 8 is arranged in the sliding groove 11 in a sliding manner, one end, close to the spiral sheet 102, of the sliding plate 8 is in constant contact with the spiral sheet 102 through a reset element, and the cavity is divided into a high-pressure cavity and a low-pressure cavity. When the spiral rotor 10 rotates along with the rotating shaft 1, the ejector slide plate 8 slides along the axial direction of the rotating shaft 1 in an undulated manner, so that the volume change of a high-pressure cavity and a low-pressure cavity separated by the slide plate 8 is realized. The upper cavity and the lower cavity separated by the spiral sheet 102 are both available spaces, and compared with the traditional variable-volume rotary fluid machine, the variable-volume rotary fluid machine has the advantages of larger available space volume and higher utilization rate. And a first flow channel and a second flow channel are arranged on an assembly formed by the cover body 3 and the cylinder body 5, and the first flow channel and the second flow channel are respectively communicated with the high-pressure cavity and the low-pressure cavity. And determining which of the first flow channel and the second flow channel is used for inflow and which is used for outflow according to the actual application requirement. When the power machine is used, namely the energy of fluid is converted into power, the flow channel for outflow is connected with a low-pressure cavity, and the flow channel for inflow is connected with a high-pressure cavity; when the sliding plate is used as a pump and a compressor, namely power is converted into fluid energy, a flow passage for outflow is connected with a high-pressure cavity, a flow passage for inflow is connected with a low-pressure cavity, the pressure difference between two sides of the sliding plate 8 is the key for realizing the mutual conversion of mechanical motion and fluid energy, and the larger the available conversion space is, the more the energy is converted in a single time is, and the higher the efficiency is.

The definition of the sliding plate 8 in the present invention is different from the conventional plate definition, and the sliding plate 8 in the present invention may be a conventional single plate member or may be formed by stacking a plurality of plate members. When the slide plate is an assembly formed by stacking a plurality of layers of plate members, the thickness of the plurality of layers of plate members is consistent with the width of the sliding groove 11, the plurality of layers of plate members can slide up and down along the sliding groove 11, each plate member is simultaneously contacted with the spiral piece 10, the multi-point line contact of the slide plate and the spiral piece 10 is realized, and the tightness is increased.

The fluid medium in this embodiment may be a liquid (viscous liquid) or a gas. Power machines include engines, water turbines, steam turbines, pneumatic motors, hydraulic motors, and the like.

In this embodiment, the end surface of the cover body 3 is provided with a sliding groove 11, the inner wall of the sliding groove 11 is provided with a sealing groove, a sealing structure is arranged in the sealing groove, and the sliding plate 8 is in sealing contact with the sliding groove 11 through the sealing structure.

In this embodiment, the cylinder body 5 and the two cover bodies 3 form a sealed environment, and the spiral disk rotor 10 rotates in the sealed environment, so that the eddy phenomenon in the work of the turbo machine is eliminated, and the efficiency is improved. When used as an engine, the surge phenomenon of the prior jet aircraft engine is eliminated.

The variable-capacity spiral disk rotor fluid mechanical device can be used in the fields of pumps and compressors. Can be used for replacing water turbines and steam turbines. When the gas turbine is replaced, two groups of variable-capacity spiral disk rotor fluid mechanical devices are needed to be arranged, rotating shafts 1 of the two groups of variable-capacity spiral disk rotor fluid mechanical devices are coaxial, one group of the two groups of the variable-capacity spiral disk rotor fluid mechanical devices is responsible for air suction and compression, power is converted into fluid energy, gas is pressed into a combustion chamber, fuel is sprayed into the combustion chamber, and ignition and combustion are carried out; the other group converts fluid energy into power, and the gas expanded by heat after combustion pushes the spiral disk rotor 10 to rotate and do work and then is discharged.

The utility model can also take fluid media (such as nitrogen and the like) which are easy to realize gas-liquid two-phase conversion as closed circulation fluid media to be used for thermonuclear energy conversion of the water and underwater naval vessels, replace the Stirling heat engine of AI P and enable the naval vessels of China to step forward a new step.

In this embodiment, the upper end surface of the spiral piece 102 is provided with a first sealing surface 10a, the lower end surface of the spiral piece 102 is provided with a second sealing surface 10b, the first sealing surface 10a is in contact with the upper cover body 3, and when the first sealing surface 10a rotates to the sliding groove 11 of the upper cover body 3 along with the rotation of the spiral disk rotor 10, only one cavity is temporarily not communicated with the flow channel; when the spiral piece 102 continues to rotate, the first sealing surface 10a leaves the sliding groove 11, and when the first flow channel and the second flow channel are opened, the high-pressure cavity and the low-pressure cavity are restored to coexist, so that the conversion of the low-pressure cavity and the high-pressure cavity above the spiral piece 102 is realized. The second sealing surface 10b functions in the same manner as the first sealing surface 10 a.

In some embodiments, referring to fig. 1 to 3, the first flow channel includes two first flow inlet and outlet channels, the second flow channel includes two second flow inlet and outlet channels, each cover 3 has a first flow inlet and outlet channel and a second flow inlet and outlet channel, a sliding slot 11 is disposed between the first flow inlet and outlet channels on the same cover 3, the first flow inlet and outlet channels and the second flow inlet and outlet channels on the same cover 3 are respectively communicated with the high pressure chamber and the low pressure chamber separated by the sliding plate 8 on the cover 3, the first flow inlet and outlet channel includes a first flow inlet and outlet hole 2 and a third flow inlet and outlet hole 4 which are communicated with each other, the second flow inlet and outlet channel includes a second flow inlet and outlet hole 7 and a fourth flow inlet and outlet hole 6 which are communicated with each other, the first flow inlet and outlet hole 2 and the second flow inlet and outlet hole 7 are located at the end of the cover 3, the third flow inlet and outlet hole 4 and the fourth flow inlet and outlet hole 6 are located on the peripheral surface of the cover 3, the first inlet and outlet holes 2 of the covers 3 are located on the same straight line, the second inlet and outlet holes 7 of the covers 3 are located on the same straight line, and the chutes 11 of the covers 3 are located on the same straight line.

In this embodiment, the first inlet/outlet hole 2 and the second inlet/outlet hole 7 are located at the end of the cover 3, the first inlet/outlet hole 2 and the second inlet/outlet hole 7 are incomplete through holes, and the open ends of the first inlet/outlet hole 2 and the second inlet/outlet hole 7 face the spiral disk rotor 10. The third inlet/outlet orifice 4 and the fourth inlet/outlet orifice 6 are located on the peripheral surface of the cover 3, and the fluid flows into the first inlet/outlet orifice 2 from the third inlet/outlet orifice 4 and then flows into the corresponding cavity. Or the fluid flows from the fourth inlet and outlet orifice 6 into the second inlet and outlet orifice 7 and then to the corresponding cavity.

Since the first inlet/outlet orifice 2 and the second inlet/outlet orifice 7 are located at the end of the cover 3, the first sealing surface 10a and the second sealing surface 10b seal the first inlet/outlet flow passage and the second inlet/outlet flow passage by sealing the corresponding first inlet/outlet orifice 2 and the second inlet/outlet flow orifice 7 on the cover 3.

In this embodiment, the upper end surface of the spiral piece 102 is provided with a first sealing surface 10a, the lower end surface of the spiral piece 102 is provided with a second sealing surface 10b, the first sealing surface 10a contacts with the upper lid 3, and as the spiral disk rotor 10 rotates, when the first sealing surface 10a rotates to the first flow inlet and outlet channel and the second flow inlet and outlet channel of the upper lid 3, the first flow inlet and outlet channel and the second flow inlet and outlet channel can be closed, so that the conversion between the low pressure cavity and the high pressure cavity above the spiral piece 102 is realized. The second sealing surface 10b functions in the same manner as the first sealing surface 10 a. The second sealing surface 10b may seal the first and second inlet and outlet flow passages of the lid body 3 below the spiral disk rotor 10.

Since the first sealing surface 10a and the second sealing surface 10b function in the same manner, the first sealing surface 10a is taken as an example for explanation. Assuming that the variable-volume spiral disk rotor fluid mechanical device is used as a power machine, namely, the energy of fluid is converted into power, the first flow inlet and outlet channel is a flow inlet channel, and a high-pressure cavity is communicated with the flow inlet channel; the second inlet and outlet channel is an outlet channel, and a low-pressure cavity is communicated with the outlet channel. Initially the high pressure chamber volume is less than the low pressure chamber volume. High-pressure fluid is input into the high-pressure cavity through the inflow channel to push the spiral disk rotor 10 to rotate, the volume of the low-pressure cavity is reduced along with the increase of the volume of the high-pressure cavity, and the fluid in the low-pressure cavity is discharged through the outflow channel. When the first sealing surface 10a rotates to the sealing outflow channel along with the spiral disk rotor 10, the volume of the high-pressure cavity is maximum, and the low-pressure cavity disappears; when the spiral disk rotor 10 continues to rotate, the process from the independent sealing outflow channel to the outflow channel, the simultaneous sealing of the inflow channel and the independent sealing inflow channel is the process of conversion transition from the high-pressure cavity to the low-pressure cavity. When the first sealing surface 10a alone seals the inlet passage and the outlet passage is open, the volume of the low pressure chamber is maximized and the high pressure chamber disappears completely. Then the spiral disk rotor 10 continues to rotate, when the inflow channel and the outflow channel are both completely opened, the high-pressure cavity and the low-pressure cavity coexist again, the process that the volume of the high-pressure cavity is gradually increased and the volume of the low-pressure cavity is gradually decreased is repeated again and again, and the energy cycle conversion is realized.

In some embodiments, referring to fig. 11, a first flow passage and a second flow passage are provided on the cylinder 5, the first flow passage is a fifth intake/discharge hole 17, the second flow passage is a sixth intake/discharge hole 18, and the fifth intake/discharge hole 17 and the sixth intake/discharge hole 18 are provided on the circumferential wall of the cylinder 5.

In this embodiment, two slide plates 8 will separate two high pressure chambers and two low pressure chambers, and the fifth inlet and outlet orifice 17 and the sixth inlet and outlet orifice 18 will communicate with two chambers of the same type, respectively.

In some embodiments, referring to fig. 5-6, the included angle is 180 degrees.

In this embodiment, the connecting line between the middle of the first sealing surface 10a and the center of the spiral disk rotor 10 and the connecting line between the middle of the second sealing surface 10b and the center of the spiral disk rotor 10 have an angle of 180 degrees. And the first inlet and outlet holes 2 of the respective covers 3 are located on the same straight line, and the second inlet and outlet holes 7 of the respective covers 3 are located on the same straight line. Therefore, when the first sealing surface 10a simultaneously seals the first inlet/outlet hole 2 and the second inlet/outlet hole 7 on the cover body 3 above the spiral disk rotor 10, the volumes of the high pressure chamber and the low pressure chamber below the spiral disk rotor 10 are equal, and each volume is fifty percent of the total volume of the cavity below the spiral disk rotor 10. Similarly, when the second sealing surface 10b simultaneously seals the first inlet/outlet hole 2 and the second inlet/outlet hole 7 on the cover 3 below the spiral disk rotor 10, the volumes of the high pressure chamber and the low pressure chamber above the spiral disk rotor 10 are equal, and each volume is fifty percent of the total volume of the cavity above the spiral disk rotor 10.

In some embodiments, referring to fig. 1, the return element is two springs 9, and the two springs 9 are respectively located at the outer sides of the two covers 3 and are connected with the sliding plates 8 in a one-to-one correspondence manner.

In this embodiment, the variable displacement spiral disk rotor fluid mechanical device can be used in an engine, a pump body and other devices. The reset element is two springs 9, and one end of spring 9 is fixed, and the other end of spring 9 links to each other with slide 8, and two slides 8 are connected with two spring 9 one-to-one. The fixed end of the spring 9 can be installed and fixed on the cover body 3 at the two ends. The spring 9 pushes the sliding plate 8 to contact the spiral piece 102 all the time. When the first sealing surface 10a or the second sealing surface 10b rotates to the position of the cover sliding groove 11, the corresponding sliding plate 8 is re-extended into the space between the corresponding cover body 3 and the spiral piece 102 under the action of the spring 9 as the first sealing surface 10a or the second sealing surface 10b leaves the sliding groove 11.

In some possible implementations, referring to fig. 8 to 10, avoidance grooves 16 are provided on the cover body 3 and the cylinder body 5, the same connecting member 15 penetrates through the avoidance grooves 16, the avoidance grooves 16 on the cover body 3 are communicated with the sliding groove 11, and the sliding plates 8 are connected to the connecting member 15.

In this embodiment, the sliding plates 8 are connected by the connecting member 15, the sliding plates 8 and the connecting member 15 are in an integral connecting structure, the adjacent sliding plates 8 and the connecting member 15 enclose a concave shape, and the spiral piece 102 on the spiral disk rotor 10 is located between the two sliding plates 8 and is in sliding contact with the two sliding plates 8. When the spiral disk rotor 10 rotates, the spiral piece 102 pushes the sliding plates 8 on both sides to slide back and forth along the axial direction of the rotating shaft 1. Because the sliding plates 8 are connected by the connecting member 15, when one of the sliding plates 8 slides under the pushing of the spiral sheet 102, the other sliding plates 8 slide together under the pulling of the connecting member 15. So that the respective sliding plates 8 can be slid simultaneously through the connection members 15, and the sliding and returning of the respective sliding plates 8 is more stable.

In this embodiment, all be equipped with on lid 3 and the cylinder body 5 and dodge groove 16, dodge to be equipped with the seal groove on the inner wall in groove 16, set up seal structure in the seal groove, slide 8 through seal structure with dodge groove 16 sealing contact.

In this embodiment, the seal structure can be a rubber piece, and can also be other high temperature resistant structures as required.

In some possible implementations, referring to fig. 5 to 6, the spiral disk rotor 10 has a center post 101, the center post 101 is connected to the rotating shaft 1, the spiral piece 102 is disposed on the center post 101, the first sealing surface 10a is coplanar with an upper end surface of the center post 101, and the second sealing surface 10b is coplanar with a lower end surface of the center post 101.

In this embodiment, the spiral disk rotor 10 has a central column 101, a key groove is formed in the rotating shaft 1, a key is arranged in the key groove, and the rotating shaft 1 is connected with the central column 101 through the key. The first sealing surface 10a is coplanar with the upper end face of the central post 101 and the second sealing surface 10b is coplanar with the lower end face of the central post 101. The two cover bodies 3 are respectively attached to two ends of the central column 101, so that fluid cannot flow between the central column 101 and the cover bodies 3.

In some embodiments, referring to fig. 7, an annular first sealing groove 12 is disposed on both the upper end surface and the lower end surface of the center post 101, a second sealing groove 13 is disposed on both the first sealing surface 10a and the second sealing surface 10b, the second sealing groove 13 is communicated with the coplanar first sealing groove 12, planar sealing strips are disposed in the first sealing groove 12 and the second sealing groove 13, a third sealing groove 14 is disposed on the peripheral wall of the spiral piece 102, a peripheral wall sealing strip is disposed in the third sealing groove 14, and the spiral piece 102 is in sealing contact with the cylinder 5 through the peripheral wall sealing strip.

In this embodiment, the upper end surface and the lower end surface of the center post 101 are both provided with an annular first sealing groove 12, the first sealing surface 10a and the second sealing surface 10b are both provided with a second sealing groove 13, the second sealing groove 13 is communicated with the first sealing groove 12 on the same plane, and plane sealing strips are arranged in the first sealing groove 12 and the second sealing groove 13. The planar sealing strips ensure better sealing contact of the central post 101 and the first and second sealing surfaces 10a, 10b with the lid 3.

In this embodiment, a third sealing groove 14 is formed in the peripheral wall of the spiral piece 102, and a peripheral wall sealing strip is arranged in the third sealing groove 14, so that the spiral piece 102 is in better sealing contact with the cylinder body 5, and fluids in the two cavities can be effectively prevented from streaming mutually.

In some embodiments, referring to fig. 1 to 3, a plurality of spiral disk rotors 10 are disposed on a rotating shaft 1, the spiral disk rotors 10 are disposed at intervals along an axial direction of the rotating shaft 1, a cylinder body 5 is sleeved outside each spiral disk rotor 10, the cylinder bodies 5 and the cover bodies 3 are sequentially and alternately disposed along the axial direction of the rotating shaft 1, the number of the cover bodies 3 is one more than that of the cylinder bodies 5, a sliding plate 8 is disposed in a sliding chute 11 of each cover body 3, in a combined assembly formed by the sequentially and alternately disposed cylinder bodies 5 and the cover bodies 3, two sliding plates 8 disposed at two ends are respectively connected with two springs 9 in a one-to-one correspondence manner, two ends of the sliding plate 8 disposed at the middle portion are respectively contacted with spiral pieces 102 at two sides, and a first inlet/outlet 2 and a second inlet/outlet 7 disposed on the cover body 3 between the two cylinder bodies 5 are through holes.

In this embodiment, the rotating shaft 1 is provided with a plurality of spiral disk rotors 10, and each spiral disk rotor 10 is sleeved with a cylinder 5. The cylinder bodies 5 and the cover bodies 3 are alternately arranged in sequence along the axial direction of the rotating shaft 1, and the number of the cover bodies 3 is one more than that of the cylinder bodies 5. Therefore, the multiple groups of cylinder bodies 5, the cover body 3 and the spiral disk rotor 10 can simultaneously perform energy conversion action, and the efficiency and the utilization rate are improved.

Because the line connecting the middle of the first sealing surface 10a to the center of the spiral disk rotor 10 and the line connecting the middle of the second sealing surface 10b to the center of the spiral disk rotor 10 have an angle of 180 degrees. So that the slide plate 8 sandwiched between the two spiral disk rotors 10 can reciprocate in the axial direction of the rotary shaft 1 by the cooperation of the two spiral disk rotors 10. During the reciprocating motion of the sliding plate 8, two ends of the sliding plate 8 are respectively contacted with the spiral disc rotors 10 on two sides of the sliding plate 8. Because only one end of the two end sliding plates 8 is contacted with the spiral disk rotor 10, the two end sliding plates 8 are both connected with springs 9, and the springs 9 push the sliding plates 8 to be contacted with the spiral disk rotor 10 all the time.

The first inlet and outlet hole 2 and the second inlet and outlet hole 7 on the cover 3 between the two cylinders 5 are through holes, so that the fluid in the third inlet and outlet hole 4 can simultaneously flow into the cavities on both sides of the cover 3 through the first inlet and outlet hole 2, and the fluid in the fourth inlet and outlet hole can simultaneously flow into the cavities on both sides of the cover 3 through the second inlet and outlet hole 7. The first inlet and outlet holes 2 and the second inlet and outlet holes 7 of the two covers 3 at the extreme end are non-penetrating holes, and the open ends of the first inlet and outlet holes 2 and the second inlet and outlet holes 7 face the adjacent spiral disk rotor 10. Thereby preventing fluid from flowing out of the cover 3.

In some embodiments, referring to fig. 8 to 10, a plurality of spiral disk rotors 10 are disposed on the rotating shaft 1, the spiral disk rotors 10 are disposed at intervals along the axial direction of the rotating shaft 1, a cylinder body 5 is sleeved outside each spiral disk rotor 10, the cylinder bodies 5 and the cover bodies 3 are sequentially and alternately disposed along the axial direction of the rotating shaft 1, the number of the cover bodies 3 is one more than that of the cylinder bodies 5, a sliding plate 8 is disposed in a sliding groove 11 of each cover body 3, and the plurality of sliding plates 8 are connected through a connecting member 15 in an avoiding groove 16.

In this embodiment, set up a plurality of spiral disk rotors 10 on the axis body, a cylinder body 5 is all established to every spiral disk rotor 10 overcoat, cylinder body 5 sets up with lid 3 in proper order in turn along the axis direction of pivot 1, the quantity of lid 3 is one more than the quantity of cylinder body 5, all set up a slide 8 in the spout 11 of every lid 3, each slide 8 all links to each other through connecting piece 15, the synchronous rotation of spiral disk rotor 10 on the pivot 1, each slide 8 slides along the axis direction of pivot 1 in step through pulling of connecting piece 15.

In some embodiments, referring to fig. 2, the end of the sled 8 that is adapted to contact the flights 102 is an arcuate end.

In this embodiment, when a plurality of spiral disk rotors 10 are provided, in the assembly formed by the cylinder block 5 and the lid body 3 which alternate in sequence, both ends of the slide plate 8 on the lid body 3 located in the middle portion are arc-shaped ends.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A positive displacement helical disk rotor fluid machine comprising:

a rotating shaft;

the spiral disc rotor is arranged on the rotating shaft and can rotate along with the rotating shaft, the spiral disc rotor is provided with a spiral sheet, the upper end surface of the spiral sheet is provided with a first sealing surface, the lower end surface of the spiral sheet is provided with a second sealing surface, and an included angle is formed between a connecting line of the middle part of the first sealing surface and the center of the spiral disc rotor and a connecting line of the middle part of the second sealing surface and the center of the spiral disc rotor;

the cylinder body is of an annular structure, the cylinder body is sleeved outside the spiral disc rotor, and the peripheral surface of the spiral sheet is in sealing contact with the inner wall of the cylinder body;

the two cover bodies are respectively arranged at two ends of the cylinder body, the spiral sheet divides the cylinder body into an upper cavity and a lower cavity, one of the cover bodies is in sealing contact with the first sealing surface of the spiral disc rotor, the other cover body is in sealing contact with the second sealing surface of the spiral disc rotor, a sliding groove is arranged on the end surface of the cover body and penetrates through the cover body, a component formed by the cover body and the cylinder body is provided with a first flow passage and a second flow passage, and the first flow passage and the second flow passage are respectively positioned at two sides of the sliding groove;

the two sliding plates are respectively arranged in the two sliding grooves in a sliding manner, one end, close to the spiral disk rotor, of each sliding plate is in contact with the spiral disk rotor, each sliding plate is used for dividing the cavity into a high-pressure cavity and a low-pressure cavity, and the first flow passage and the second flow passage are respectively used for being communicated with the high-pressure cavity and the low-pressure cavity; and

and the resetting element is used for enabling the sliding plate to be always in contact with the spiral disk rotor.

2. The variable capacity helical rotor fluid mechanical device according to claim 1, wherein the first flow channel includes two first flow inlet and outlet channels, the second flow channel includes two second flow inlet and outlet channels, each cover is provided with one first flow inlet and outlet channel and one second flow inlet and outlet channel, the sliding slot is provided between the first flow inlet and outlet channel and the second flow inlet and outlet channel on the same cover, the first flow inlet and outlet channel and the second flow inlet and outlet channel on the same cover are respectively communicated with the high pressure chamber and the low pressure chamber separated by the sliding plate on the cover, the first flow inlet and outlet channel includes a first flow inlet and outlet hole and a third flow inlet and outlet hole which are communicated with each other, the second flow inlet and outlet channel includes a second flow inlet and outlet hole and a fourth flow inlet and outlet hole which are communicated with each other, and the first flow inlet and outlet hole and the second flow inlet and outlet hole are located at an end of the cover, the third inlet and outlet hole and the fourth inlet and outlet hole are located on the circumferential surface of the cover body, the first inlet and outlet holes in the cover body are located on the same straight line, the second inlet and outlet holes in the cover body are located on the same straight line, and the sliding grooves in the cover body are located on the same straight line.

3. The variable capacity helical disk rotor fluid machine according to claim 1, wherein the first flow passage and the second flow passage are provided in the cylinder block, the first flow passage is a fifth inlet/outlet hole, the second flow passage is a sixth inlet/outlet hole, and the fifth inlet/outlet hole and the sixth inlet/outlet hole are provided in a peripheral wall of the cylinder block.

4. A positive-displacement helical disk rotor fluid machine according to claim 2 or claim 3, wherein said included angle is 180 degrees.

5. The positive-displacement helical disk rotor fluid machine according to claim 1, wherein said returning element is two springs, and said two springs are respectively located outside said two cover bodies and are connected to said slide plates in a one-to-one correspondence.

6. The positive-displacement helical disk rotor fluid machine according to claim 4, wherein the cover body and the cylinder body are each provided with an avoiding groove, the same connecting member is inserted into the avoiding groove, the avoiding groove in the cover body is communicated with the slide groove, and the slide plate is connected to the connecting member.

7. The positive-displacement spiral disk rotor fluid mechanical device according to claim 1, wherein the spiral disk rotor has a center post, the center post is connected to the rotating shaft, the spiral pieces are provided on the center post, the first sealing surface is coplanar with an upper end surface of the center post, and the second sealing surface is coplanar with a lower end surface of the center post.

8. The variable capacitance spiral disk rotor fluid machine according to claim 7, wherein an annular first seal groove is provided on each of an upper end surface and a lower end surface of the center post, a second seal groove is provided on each of the first seal surface and the second seal surface, the second seal groove communicates with the first seal groove on the same plane, a planar seal strip is provided in each of the first seal groove and the second seal groove, a third seal groove is provided on a peripheral wall of the spiral piece, a peripheral wall seal strip is provided in each of the third seal grooves, and the spiral piece is in sealing contact with the cylinder block through the peripheral wall seal strip.

9. A positive-displacement helical disk rotor fluid machine according to claim 5, the rotating shaft is provided with a plurality of spiral disk rotors which are arranged at intervals along the axial direction of the rotating shaft, a cylinder body is sleeved outside each spiral disk rotor, the cylinder bodies and the cover bodies are sequentially and alternately arranged along the axial direction of the rotating shaft, the number of the cover bodies is one more than that of the cylinder bodies, one sliding plate is arranged in a sliding chute of each cover body, and the cylinder bodies and the cover bodies are sequentially and alternately arranged in a combined piece, the two sliding plates at the two ends are respectively connected with the two reset elements in a one-to-one correspondence mode, the two ends of the sliding plates at the middle portion are respectively in contact with the spiral pieces at the two sides, and the first inflow and outflow holes and the second inflow and outflow holes in the cover body between the two cylinder bodies are through holes.

10. The variable-capacity spiral rotor fluid mechanical apparatus according to claim 6, wherein a plurality of spiral rotors are provided on the rotating shaft, the spiral rotors are provided at intervals along an axial direction of the rotating shaft, a cylinder body is sleeved outside each spiral rotor, the cylinder bodies and the cover bodies are sequentially and alternately provided along the axial direction of the rotating shaft, the number of the cover bodies is one more than that of the cylinder bodies, one sliding plate is provided in a sliding groove of each cover body, and the plurality of sliding plates are connected by a connecting member in the avoiding groove.

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