CN112796989A - Cylinder body, rotating device, rotating system and fluid machine - Google Patents
Cylinder body, rotating device, rotating system and fluid machine Download PDFInfo
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- CN112796989A CN112796989A CN202011615231.5A CN202011615231A CN112796989A CN 112796989 A CN112796989 A CN 112796989A CN 202011615231 A CN202011615231 A CN 202011615231A CN 112796989 A CN112796989 A CN 112796989A
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- gate valve
- cylinder body
- groove
- rotating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L5/00—Slide valve-gear or valve-arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Taps Or Cocks (AREA)
- Sliding Valves (AREA)
Abstract
The invention provides a cylinder body, a rotating device, a rotating system and a fluid machine, which can conveniently disassemble a gate valve. The inner part of the cylinder body is enclosed to form a cylinder body inner cavity, and a gate valve groove is formed in the radial inner side of the cylinder body along the axial direction; and a gate valve inlet and outlet channel is formed in the cylinder body on the radially outer side of the gate valve groove, and the gate valve can be sent into the gate valve groove from the outside of the cylinder body or taken out of the cylinder body from the inside of the gate valve groove through the gate valve inlet and outlet channel. The invention greatly facilitates the installation, maintenance and replacement of the gate valve.
Description
Technical Field
The invention relates to the field of fluid machinery, in particular to a cylinder body, a rotating device, a rotating system and fluid machinery, wherein the cylinder body, the rotating device and the rotating system can be used for conveniently disassembling a gate valve.
Background
A fluid machine is an energy conversion device that interconverts fluid pressure energy and mechanical energy, and is typically as follows: fluid motors, compressors, pumps, engines, and the like. The gate valve is a common component for isolating the working chamber in the cylinder, and directly determines the performance of the fluid machine. During long-term use, the gate valve is easily worn or failed, so replacing the gate valve is a routine operation for maintaining the fluid machine.
However, in the process of implementing the present invention, the applicant found that in the conventional fluid machine, the gate valve chamber is opened on the inner side of the cylinder body, and it is very inconvenient to open the cylinder body chamber and remove the rotor mechanism from the inside to take out the gate valve when replacing the gate valve.
Disclosure of Invention
Technical problem to be solved
The present invention is intended to solve at least one of the above technical problems at least in part.
(II) technical scheme
In order to achieve the above object, according to one aspect of the present invention, there is provided a cylinder block. The inner part of the cylinder body is enclosed to form a cylinder body inner cavity, and a gate valve groove is formed in the radial inner side of the cylinder body along the axial direction; and a gate valve inlet and outlet channel is formed in the cylinder body on the radially outer side of the gate valve groove, and the gate valve can be sent into the gate valve groove from the outside of the cylinder body or taken out of the cylinder body from the inside of the gate valve groove through the gate valve inlet and outlet channel.
In order to achieve the above object, according to a second aspect of the present invention, there is also provided a rotating apparatus. The rotating device includes: according to the cylinder body, the cylinder body on the two sides of the inlet and outlet channel of the gate valve is provided with the fluid inlet and the fluid outlet; the gate valve is arranged in the gate valve groove; the rotating mechanism is sleeved on the part of the main shaft, which is positioned in the inner cavity of the cylinder body, and forms an axially extending sealed working space in the inner cavity of the cylinder body by rotating in the inner cavity of the cylinder body; the gate valve extends out and retracts in the gate valve cavity along with the movement of the rotating mechanism and always abuts against the outer surface of the rotating mechanism, so that the sealed working space is divided into two piston spaces which are respectively communicated with the fluid inlet and the fluid outlet on the cylinder body.
In order to achieve the above object, according to a third aspect of the present invention, there is also provided a rotation system. This rotational system includes: p rotating devices, wherein P is more than or equal to 2; wherein, the P rotating devices share the same main shaft, and at least one rotating device is the rotating device.
In order to achieve the above object, according to a fourth aspect of the present invention, there is also provided a fluid machine. The fluid machine includes: a rotating device as described above, or a rotating system as described above.
In order to achieve the above object, according to a fifth aspect of the present invention, there is also provided a fluid motor. The fluid motor includes: a rotating device as described above, or a rotating system as described above; the fluid inlet is a high-pressure fluid inlet, and the fluid outlet is a low-pressure fluid outlet; the high-pressure fluid entering from the high-pressure fluid inlet enters the working chamber, the rotating mechanism is pushed to rotate to do work, the generated torque is transmitted to the outside of the working chamber through the main shaft, and the low-pressure fluid after doing work is discharged through the low-pressure fluid outlet.
In order to achieve the above object, according to a sixth aspect of the present invention, there is also provided a pump. The pump includes: a rotating device as described above, or a rotating system as described above; the main shaft transmits the torque to the working chamber, the rotating mechanism rotates along the working chamber under the driving of the main shaft, and the fluid is pumped in from the fluid inlet and then pumped out from the fluid outlet.
In order to achieve the above object, according to a seventh aspect of the present invention, there is also provided a compressor. The compressor includes: a rotating device as described above, or a rotating system as described above; the fluid inlet is a low-pressure medium inlet, and the fluid outlet is a high-pressure medium outlet; the main shaft transmits torque to the working chamber, the rotating mechanism rotates along the working chamber under the driving of the main shaft to compress fluid media entering from the low-pressure medium inlet, and the compressed fluid media are discharged through the high-pressure medium outlet.
In order to achieve the above object, according to an eighth aspect of the present invention, there is also provided an engine. The engine includes: a rotating device as described above, or a rotating system as described above; the fluid inlet is connected with the combustion chamber, and the fluid outlet is connected with the waste gas outlet; high-pressure gas entering from the combustion chamber pushes the rotating mechanism to rotate to do work, the generated torque is transmitted out of the working cavity through the main shaft, and low-pressure gas after doing work is discharged to a waste gas discharge port through the fluid outlet.
(III) advantageous effects
According to the technical scheme, the invention has at least one of the following beneficial effects:
(1) the cylinder body is provided with a gate valve access passage communicated with the gate valve groove, and the gate valve is supplied to the gate valve groove from the outer side of the cylinder body through the gate valve access passage or is taken out from the gate valve groove through the gate valve access passage, so that the installation, the maintenance and the replacement of the gate valve are greatly facilitated.
(2) The circumferential opening size of the gate valve inlet and outlet channel is matched with the size of the gate valve, and a fit clearance of 0.02-0.1 mm exists between the inner side of the gate valve inlet and outlet channel and the gate valve in an installation state.
(3) At least one group of arc surfaces are arranged on the cylinder bodies on two sides of the circumferential direction of the gate valve access passage so as to install the guide parts under the condition of not enlarging the gate valve access passage.
(4) The sealing strip groove and the roller groove are formed in the cylinder body on the two sides of the circumferential direction of the gate valve, the sealing strip and the roller are respectively installed, the sealing strip and the roller are respectively abutted to the two sides of the circumferential direction of the gate valve in the process that the gate valve extends out of and retracts into the gate valve groove, the inner space of the cylinder body is sealed and isolated from the outer space of the radial direction of the gate valve, friction force can be reduced, and the gate valve can be more conveniently installed in the outer space of the radial direction of the cylinder body.
(5) The sealing strip groove and the sealing strip are both in the shape of wide inside and narrow outside, namely the width of the groove bottom of the sealing strip groove is larger than that of the groove top, so that the stability and the reliability of the sealing strip are enhanced, and the sealing strip is prevented from falling in the process of installing the gate valve.
(6) The annular steps are formed in the two axial sides of the cylinder body, the side lining plates on the two sides are installed on the annular steps and fixed with the cylinder body, and are not installed on the end covers on the two sides of the cylinder body, so that the sealing of the inner side space of the cylinder body is facilitated.
Drawings
Fig. 1 is a perspective view of a rotating apparatus according to an embodiment of the present invention in an assembled state.
Fig. 2 is an exploded view of the rotating apparatus shown in fig. 1.
Fig. 3 is an enlarged longitudinal section of the turning device shown in fig. 1 at the location of the sleeve recess.
Fig. 4A and 4B are schematic views of a gate spool in the rotating apparatus shown in fig. 1.
[ description of main reference symbols in the drawings ]
100-gate valve;
200-cylinder body;
201-sealing strip; 202-a roller; 203-annular step;
300-a gate valve reset mechanism;
310-a sleeve; 320-guide pillars;
s1-gate valve groove; s2-gate valve entrance and exit channel; s3-sleeve groove;
s4-sealing the strip groove; s5-roller groove.
Detailed Description
The invention provides a cylinder body solution which can conveniently assemble and disassemble a gate valve and does not influence the sealing and the integral strength of the cylinder body.
Before describing particular aspects, it is necessary to define terms relating to direction. The expressions "radial", "axial", "circumferential", "inside" and "outside" are used hereinafter. Unless otherwise noted, these expressions are relative to the cylinder block, i.e., the direction along the central axis of the cylinder block is "axial", in which case the direction toward the side liner plate is "axially outward", and the direction away from the side liner plate is "axially inward"; the direction perpendicular to the central axis of the cylinder body is radial, the direction towards the central axis is radial inner side, and the direction far away from the central axis is radial outer side; the direction of a circle drawn by taking a point on the central axis of the cylinder body as the center of the circle is the circumferential direction.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
First, embodiment of the rotating device
This embodiment provides a can conveniently dismantle rotating device of gate valve. Fig. 1 is a perspective view of a rotating apparatus according to an embodiment of the present invention in an assembled state. Fig. 2 is an exploded view of the rotating apparatus shown in fig. 1.
As shown in fig. 1 and 2, the rotating device of the present embodiment includes: a gate valve 100; the cylinder body 200 is internally enclosed to form a cylinder body inner cavity, the radial inner side of the cylinder body is provided with a gate valve groove S1 along the axial direction, and the radial outer side of the gate valve groove on the cylinder body is provided with a gate valve inlet and outlet channel S2; wherein the gate valve 100 is accessible through the gate valve access passage S2: firstly, the waste water is sent into the gate valve groove S1 from the outside of the cylinder body; or ② taking out the waste water from the gate valve groove S1 to the outside of the cylinder body.
In the conventional art, the radial inner side of the cylinder body is provided with a gate valve groove for accommodating the gate valve body, the radial outer side of the gate valve groove on the cylinder body is closed except for a mounting hole for the reset mechanism to pass through, the gate valve body can only be mounted from the inner side of the cylinder body and then connected with the reset mechanism extending into the mounting hole, and when the gate valve is detached, the inner cavity of the cylinder body can only be opened firstly, the rotating mechanism is detached, and then the gate valve can be detached. It is thus clear that such an arrangement results in a gate valve that is extremely inconvenient to install, dismantle and maintain.
In the invention, the applicant breaks through the conventional method, and directly arranges the gate valve access channel for the gate valve body to pass through on the cylinder body, so that the gate valve can be installed from the outer side, and the inner cavity of the cylinder body is not required to be opened when the gate valve is detached, and the rotating mechanism is detached, thereby greatly facilitating the installation, maintenance and replacement of the gate valve.
The respective components of the rotating device of the present embodiment will be described in detail below.
Referring to fig. 1 and 2, the rotating device includes: the cylinder 200 is enclosed to form a cylindrical cylinder inner cavity. The cylinder body at the two sides of the gate valve inlet and outlet channel is provided with a fluid inlet and a fluid outlet.
As a complete rotation device, it should be known to those skilled in the art that it also includes: a main shaft (not shown in the figure) at least partially positioned in the inner cavity of the cylinder body, wherein the central axis of the main shaft is coincident with the central axis of the inner cavity of the cylinder body; a rotating mechanism (not shown in the figure) sleeved on the part of the main shaft positioned in the inner cavity of the cylinder body, and forming an axially extending sealed working space in the inner cavity of the cylinder body by performing rotary motion in the inner cavity of the cylinder body; the gate valve 100 divides the sealed working space into two piston spaces, which are respectively communicated with a fluid inlet and a fluid outlet provided on the cylinder body.
It should be understood by those skilled in the art that the main shaft and the rotating mechanism are only used for realizing the functions of the rotating device for inputting and outputting fluid, applying work to fluid or utilizing fluid, and are not relevant to the technical problem solved by the present invention, i.e. the installation, the disassembly and the maintenance of the gate valve are convenient, and therefore, the main shaft and the rotating mechanism are not regarded as the key points of the present invention.
In this embodiment, the rotating mechanism is an eccentric rotor type rotating mechanism, and the eccentric rotor type rotating mechanism includes: the eccentric crankshaft is sleeved on the part of the main shaft, which is positioned in the inner cavity of the cylinder body, and the central axis of the eccentric crankshaft is parallel to the central axis of the main shaft and staggered by a preset distance; the rolling piston wheel is sleeved on the eccentric crankshaft, the central axis of the rolling piston wheel is superposed with the central axis of the eccentric crankshaft, and the rolling piston wheel rolls along the inner cylindrical surface of the cylinder body to form a crescent sealed working space. Preferably, the rolling piston wheel is mounted on the eccentric crankshaft through a bearing to reduce friction between the eccentric crankshaft and the rolling piston wheel and improve efficiency.
The present invention can also be applied to other types of rotating mechanisms, such as a star rotary type rotating mechanism, in addition to the eccentric rotor type rotating mechanism. At this time, the star rotation type rotation mechanism includes: a central sun gear drum and a planetary piston wheel. The central sun wheel roller is sleeved on the main shaft, and an annular piston space is formed by the outer cylindrical surface of the central sun wheel roller and the inner cylindrical surface of the cylinder body. A cylindrical planetary piston wheel is disposed in rolling fashion within the annular piston space.
Note that the shape of the gate valve is related to the type of the rotating mechanism. The eccentric rotor type rotating mechanism is suitable for the present embodiment, so the gate valve of the present embodiment is strip-shaped, and the corresponding gate valve slot S1 is also strip-shaped. If the star rotation type rotating mechanism is adopted, the gate valve can also be in a sheet shape, and the corresponding gate valve groove is also in a sheet shape. By analogy, in other types of rotating mechanisms, the shapes of the corresponding gate valve and gate valve recess will be clear to those skilled in the art and will not be described one by one here.
Referring to fig. 1, the gate groove S1 has a bar shape corresponding to the shape of the gate valve. In addition, in order to enable the gate valve to flexibly extend out or retract in the gate valve groove, a fit clearance of 0.02 mm-0.1 mm exists between the gate valve and the gate valve cavity.
In this embodiment, the cross section diameter of guide pillar is less than or equal to the thickness of gate valve. The gate valve entrance passage S2 has a bar shape corresponding to the shape of the gate valve. In order to facilitate the passing of the gate valve and reduce the influence on the strength of the cylinder body as much as possible, compared with the long side and the short side of the cross section of the gate valve, the size of the corresponding side of the opening of the inlet and outlet channel of the gate valve is 0.04 mm-0.2 mm wider.
Referring to fig. 1, in the present embodiment, the rotating device further includes: the gate valve resetting mechanism 300 is connected with the gate valve from the radial outer side of the gate valve and used for driving the gate valve to always abut against the outer surface of the rolling piston wheel. This gate valve resetting mechanism 300 includes: two sleeves 310 fixed on the cylinder body; two guide posts 320 fixed to the radial outer side of the gate valve and movable in the sleeve in the radial direction; two return springs (not shown) respectively abutting on the upper side of the corresponding guide posts. Under the radial pressure of the return spring, the guide post is used as a connecting piece to drive the gate valve to extend out of or retract into the gate valve groove and always press the outer surface of the rolling piston wheel, so that the crescent sealed working space is divided into two piston spaces.
It should be noted that other elastic restoring members can be used to push the guide post against the gate valve and push the guide post and the gate valve to the rolling piston wheel, and the present invention is not limited to the restoring spring used in the present embodiment.
As shown in fig. 1, two sets of circular arc-shaped sleeve grooves S3 are formed on the cylinder body on both sides of the gate valve inlet/outlet passage in the circumferential direction. As shown in fig. 2, the sleeve 310 is installed inside the sleeve groove S3 and fixed with the cylinder to achieve the guiding function of the guide post. In this embodiment, the installation of the sleeve is realized by forming the sleeve groove S5, and compared with the way of directly enlarging the opening of the gate valve access passage, the influence on the strength of the cylinder body can be reduced as much as possible.
Those skilled in the art will appreciate that the number of sets of sleeve grooves is determined by the number of guide posts in the gate valve reset assembly, the shape of the sleeve grooves is determined by the shape of the guide posts, and both need to be varied according to engineering requirements.
Fig. 3 is an enlarged longitudinal section of the turning device shown in fig. 1 at the location of the sleeve recess. Referring to fig. 1, 2 and 3, sealing strip grooves S4 and roller grooves S5 are respectively formed on two circumferential sides of a gate valve groove on a cylinder body, and respectively provided with a sealing strip 201 and a roller 202, wherein the sealing strip and the roller respectively abut against the two circumferential sides of the gate valve in the process of extending and retracting the gate valve from the gate valve groove, so that the inner space of the cylinder body is sealed and isolated from the outer space of the gate valve in the radial direction. The roller 202 is made of high-hardness and high-wear-resistance materials, such as hard alloy and ceramic, so that the wear resistance is improved, and the side face of the gate valve is protected from being worn.
Compare in the prior art gate valve both sides are the scheme of sealing strip, one side installation sealing strip, opposite side installation gyro wheel can reduce the frictional force of gate valve in the loading and unloading process when guaranteeing sealed effect, avoids because frictional force too big and leads to the gate valve to be in the installation or in and the sealing strip drops when unloading outward.
In the invention, the cross sections of the sealing strip groove and the sealing strip are both in the shapes of wide inside and narrow outside. In other words, the width of the sealing strip on the side close to the groove bottom of the sealing strip groove is larger than the width of the sealing strip clamped on the top of the sealing strip groove. Thereby can fix the sealing strip better, prevent at loading and unloading gate valve in-process sealing strip and drop.
Fig. 4A and 4B are schematic views of a gate spool in the rotating apparatus shown in fig. 1. Referring to fig. 3, fig. 4A and fig. 4B, the first side L1 or the second side L2 is not perpendicular to the bottom L3, or neither the first side L1 nor the second side L2 is perpendicular to the bottom L3. The sealing strip groove is in a shape that the width b1 of the groove bottom is wider than the width b2 of the groove top, so that the sealing strip can be ensured not to fall into a gate valve groove or a piston space when in overhaul, maintenance or gate valve replacement after being installed in the sealing strip groove.
It should be noted that although the sealing strip groove with a trapezoidal cross section having a wide inner portion and a narrow outer portion is adopted in the present embodiment, and a sealing strip with a corresponding shape is provided, it should be clear to those skilled in the art that other sealing strip grooves with a closed end shape and corresponding sealing strips can also be applied to the present invention.
Referring to fig. 1, the cylinder body is provided with recessed annular steps 203 at two axial sides thereof, and the side lining plates at two sides are mounted on the annular steps and fixed with the cylinder body, so as to seal two sides of the inner cavity of the cylinder body.
Compare side liner board in traditional technology and install on both sides end cover, be favorable to the sealed in the inboard space of cylinder body more with side liner board direct mount on the cylinder body, the wholeness and the integrality of cylinder body are better moreover, more are favorable to the equipment. In addition, the invagination shape is more favorable to protecting the side liner plate and the sealed of cylinder body side, prevents it to receive physical damage.
So far, the details of the relevant portions of the rotating device of the present embodiment have been described. However, for some implementations, if they are not critical to the invention and are well known to those of ordinary skill in the art, they are not described in detail in the drawings or in the text of the specification, which can be understood with reference to the related art.
Second, cylinder body embodiment
The invention also provides a cylinder body.
The cylinder in the above rotating device embodiment is the embodiment of the cylinder in the present invention. The related technical features of the cylinder block are explained hereinafter. For the related technical features of the gate valve, the gate valve reset assembly, etc., reference is made to the description related to the embodiment of the rotating means. The entire contents of the embodiment of the turning device are incorporated by reference in this embodiment.
As shown in fig. 1 and 2, the cylinder 200 of the present embodiment has a cylinder chamber enclosed therein, a gate valve groove S1 formed on the radially inner side thereof in the axial direction, and a gate valve inlet/outlet passage S1 formed on the cylinder on the radially outer side of the gate valve groove. The gate valve may be installed in the gate valve groove S1 from the outside of the cylinder through the gate valve access passage S2, or moved out of the gate valve groove S1 to the outside of the cylinder through the gate valve access passage S2.
In the conventional art, the radial inner side of the cylinder body is provided with a gate valve groove for accommodating the gate valve body, the radial outer side of the gate valve groove on the cylinder body is closed except for a mounting hole for the reset mechanism to pass through, the gate valve body can only be mounted from the inner side of the cylinder body and then connected with the reset mechanism extending into the mounting hole, and when the gate valve is detached, the inner cavity of the cylinder body can only be opened firstly, the rotating mechanism is detached, and then the gate valve can be detached. It is thus clear that such an arrangement results in a gate valve that is extremely inconvenient to install, dismantle and maintain.
In the invention, the applicant breaks through the conventional method, and directly arranges the gate valve access channel S2 for the gate valve body to pass through on the cylinder body, so that the gate valve can be installed from the outside, and meanwhile, the inner cavity of the cylinder body is not required to be opened when the gate valve is detached, and the rotating mechanism is detached, thereby greatly facilitating the installation, maintenance and replacement of the gate valve.
The respective constituent parts of the cylinder body of the present embodiment are described in detail below.
The gate valve of this embodiment is a bar, and the corresponding gate valve slot S1 is also a bar. And if the gate valve is in a sheet shape, the corresponding gate valve slot is also in a sheet shape.
In this embodiment, in order to enable the gate valve to be flexibly extended or retracted in the gate valve groove, a fit clearance of 0.02mm to 0.1mm exists between the gate valve and the gate valve cavity S2.
In this embodiment, the gate valve entrance/exit passage S2 has a bar shape corresponding to the shape of the gate valve. In order to facilitate the passing of the gate valve and reduce the influence on the strength of the cylinder body as much as possible, compared with the long side and the short side of the cross section of the gate valve, the size of the corresponding side of the cross section of the opening of the gate valve access passage S2 is 0.04 mm-0.2 mm wide.
As shown in fig. 1, two sets of circular arc-shaped sleeve grooves S3 are formed on the cylinder body on both sides of the gate valve inlet/outlet passage in the circumferential direction. As shown in fig. 2, the sleeve 310 of the gate valve reset assembly is mounted inside the sleeve groove S3 and fixed to the cylinder to guide the guide post. In this embodiment, through the mode of seting up the sleeve recess and realize telescopic installation, compare in the opening of direct expansion gate valve access way, can reduce the influence to cylinder body intensity as far as possible.
Referring to fig. 1 and 3, sealing strip grooves S4 and roller grooves S5 are respectively formed in the cylinder body on the two sides of the circumferential direction of the gate valve groove, and respectively provided with a sealing strip 201 and a roller 202, wherein the sealing strip and the roller respectively abut against the two sides of the circumferential direction of the gate valve in the process of extending and retracting the gate valve from the gate valve groove, so that the inner space of the cylinder body is sealed and isolated from the outer space of the gate valve in the radial direction. The roller 202 is made of high-hardness and high-wear-resistance materials, such as hard alloy and ceramic, so that the wear resistance is improved, and the side face of the gate valve is protected from being worn.
Compare in the prior art gate valve both sides are the scheme of sealing strip, one side installation sealing strip, opposite side installation gyro wheel can reduce the frictional force of gate valve in the handling when guaranteeing sealed effect, avoids because frictional force too big and lead to gate valve handling in-process sealing strip to drop.
Referring to fig. 3, 4A and 4B, the cross sections of the sealing strip groove and the sealing strip are both wide inside and narrow outside. The sealing strip groove is in a shape that the width b1 of the groove bottom is wider than the width b2 of the groove top, wherein the first side edge L1 or the second side edge L3 is not perpendicular to the bottom edge L3, or the first side edge L1 and the second side edge L3 are not perpendicular to the bottom edge L3, so that the sealing strip cannot fall into a gate valve groove or a piston space when the gate valve is repaired or replaced after being installed in the sealing strip groove.
It should be noted that although the sealing strip groove with an isosceles trapezoid cross section with a wide inner side and a narrow outer side is adopted in the embodiment, and a sealing strip with a corresponding shape is matched, it should be clear to those skilled in the art that other sealing strip grooves with a closed end shape and corresponding sealing strips can also be applied to the present invention.
Referring to fig. 1, recessed annular steps 203 are formed on two axial sides of the cylinder body, and side lining plates on two sides are mounted on the annular steps and fixed with the cylinder body, so that two sides of an inner cavity of the cylinder body are sealed.
Compare side liner board in traditional technology and install on both sides end cover, be favorable to the sealed in the inboard space of cylinder body more with side liner board direct mount on the cylinder body, the wholeness and the integrality of cylinder body are better moreover, more are favorable to the equipment. In addition, the invagination shape is more favorable to protecting the side liner plate and the sealed of cylinder body side, prevents it to receive physical damage.
So far, the important parts of the cylinder body of the embodiment have been described in detail, and other relevant contents can refer to the relevant contents of the embodiment of the rotating device. However, for some implementations, if they are not critical to the invention and are well known to those of ordinary skill in the art, they are not described in detail in the drawings or in the text of the specification, which can be understood with reference to the related art.
Third, rotating System embodiments
The invention also provides a rotating system. The rotating system comprises a plurality of rotating devices which can conveniently disassemble the gate valve.
In one embodiment of the present invention, a rotational system is provided. This rotational system includes: a cylinder bore divided into three mutually independent cylindrical chambers: a left chamber, a main chamber and a right chamber; the central axis of the main shaft A is superposed with the central axis of the inner cavity and sequentially passes through the left cavity, the main cavity and the right cavity; the main rotating mechanism, the left rotating mechanism and the right rotating mechanism are positioned in corresponding cavities for each rotating mechanism, and are matched with corresponding gate valves to form two axially extending sealing spaces through rotating movement in the cavities; the two sealed spaces are respectively communicated with the fluid inlet and the fluid outlet of the rotating device.
The main cavity, the corresponding main rotating mechanism and the corresponding gate valve form a main rotating device; the left chamber and the corresponding left rotating mechanism and the gate valve form a left rotating device, and the right chamber and the corresponding right rotating mechanism and the gate valve form a right rotating device. Wherein, each rotating device is the rotating device in the embodiment of the upper rotating device.
Although the rotating system includes 3 rotating devices in the embodiment, the rotating system may include P rotating devices, P ≧ 1, wherein the scope of the present invention is encompassed as long as one of the rotating devices employs a rotating device as in the above rotating device embodiment.
Fourth, fluid machinery embodiment
The invention also provides a fluid machine. The fluid machine employs the rotating device described in the rotating device embodiment or the rotating system described in the rotating system embodiment.
Fifth, fluid Motor embodiments
The invention also provides a fluid motor. The fluid motor employs a rotating device as described in the rotating device embodiment or a rotating system as described in the rotating system embodiment. In a fluid motor, the fluid inlet is a high pressure fluid inlet and the fluid outlet is a low pressure fluid outlet.
In the fluid motor of the embodiment of the invention, high-pressure fluid entering from the high-pressure fluid inlet enters the working chamber to push the rolling piston wheel to roll in the working chamber to do work, the generated torque is transmitted to the outside of the working chamber through the main shaft, and low-pressure fluid after doing work is discharged through the low-pressure fluid outlet. Wherein, the high-pressure fluid here can be: liquid, gas or vapor.
Sixth, pump embodiment
The invention also provides a pump. The pump employs a rotating device as described in the rotating device embodiment or a rotating system as described in the rotating system embodiment.
In the pump provided by the embodiment of the invention, the main shaft transmits the torque into the working chamber, the rolling piston wheel rolls forwards along the working chamber under the driving of the main shaft, and the fluid is pumped in from the fluid inlet and then pumped out from the fluid outlet.
Seventh, compressor embodiment
The invention also provides a compressor. The compressor employs the rotating device described in the rotating device embodiment or the rotating system described in the rotating system embodiment. In the compressor, the fluid inlet is a low-pressure medium inlet and the fluid outlet is a high-pressure medium outlet.
In the compressor provided by the embodiment of the invention, the main shaft transmits the torque into the working chamber, the eccentric shaft sleeve is used as a medium, the rolling piston wheel rolls forwards along the working chamber to compress the fluid medium entering from the low-pressure medium inlet, and the compressed fluid medium is discharged through the high-pressure medium outlet.
Eighth, Engine embodiment
The invention also provides an engine. The engine employs the rotating device described in the rotating device embodiment or the rotating system described in the rotating system embodiment. In an engine, the fluid inlet is connected to the combustion chamber and the fluid outlet is connected to the exhaust outlet.
In the engine provided by the embodiment of the invention, the rolling piston wheel is pushed to roll forwards along the working chamber by high-pressure gas entering from the combustion chamber, the generated torque is transmitted out of the working chamber through the main shaft, and the low-pressure gas after doing work is discharged to the waste gas discharge port through the fluid outlet.
It should be noted that the above definitions of the components and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments, and those skilled in the art may easily modify or replace them, for example: the existing gate valve reset mechanism comprises a sleeve, a guide post and a spring, wherein the guide post is cylindrical, in other embodiments of the invention, the guide post can also be rectangular, and the sleeve is correspondingly changed into a sheet shape.
So far, embodiments of the cylinder, the rotating apparatus, the rotating system, and the fluid machine according to the present invention have been described in detail with reference to the accompanying drawings. The present invention should be clearly recognized by those skilled in the art from the above description.
In summary, the present invention provides a cylinder body, a rotating device, a rotating system and a fluid machine with a gate valve convenient to disassemble, wherein a gate valve access passage penetrating a gate valve slot is formed in the cylinder body from top to bottom for the gate valve to be installed from the outside of the cylinder body, thereby greatly facilitating the installation, maintenance and replacement of the gate valve.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention.
And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate contents of the embodiments of the present invention. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of a term can be understood in a specific context to one of ordinary skill in the art.
Unless expressly indicated to the contrary, the numerical parameters set forth in the specification and claims of this invention may be approximations that may vary depending upon the teachings of the invention. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about," which is intended to be interpreted to mean including within the meaning of a specified amount, in some embodiments, a variation of ± 10%, in some embodiments, a variation of ± 5%, in some embodiments, a variation of ± 1%, and in some embodiments, a variation of ± 0.5%.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
Ordinal numbers such as "first," "second," "third," "primary," "secondary," and arabic numerals, letters, etc., used in the specification and claims to modify a corresponding element or step are intended only to distinguish one element (or step) having a certain name from another element (or step) having the same name, and do not imply any ordinal number for the element (or step) nor the order of one element (or step) from another element (or step).
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A cylinder body is characterized in that the inside of the cylinder body is enclosed into a cylinder body inner cavity, and a gate valve groove is axially arranged on the radial inner side of the cylinder body;
and a gate valve inlet and outlet channel is formed in the cylinder body on the radially outer side of the gate valve groove, and the gate valve can be sent into the gate valve groove from the outside of the cylinder body or taken out of the cylinder body from the inside of the gate valve groove through the gate valve inlet and outlet channel.
2. Cylinder body according to claim 1, characterized in that the dimensions of the respective sides of the opening cross section of the gate valve access duct are 0.04-0.2 mm wider than the long and short sides of the gate valve cross section.
3. The cylinder block of claim 1, wherein at least one set of sleeve grooves is formed on the cylinder block on both sides of the gate valve inlet/outlet passage in the circumferential direction.
4. The cylinder block according to claim 1, wherein a seal groove and a roller groove are formed in the cylinder block on both sides of the gate valve groove in the circumferential direction.
5. The cylinder block according to claim 4, wherein the cross section of the sealing strip groove is in a shape that a groove bottom is wide and a groove top is narrow.
6. The cylinder block as claimed in claim 5, wherein the cross section of the sealing strip groove is an isosceles trapezoid with a wide inside and a narrow outside.
7. The cylinder block as claimed in claim 1, wherein the cylinder block is provided with inwardly-recessed annular steps at both axial sides thereof, and side lining plates at both sides are mountable on the corresponding annular steps to be fixed with the cylinder block.
8. A rotary device, comprising:
the cylinder body of claim 1, wherein a fluid inlet and a fluid outlet are formed on the cylinder body at both sides of the gate valve inlet/outlet passage;
the gate valve is arranged in the gate valve groove;
the rotating mechanism is sleeved on the part of the main shaft, which is positioned in the inner cavity of the cylinder body, and forms an axially extending sealed working space in the inner cavity of the cylinder body by rotating in the inner cavity of the cylinder body;
the gate valve extends out and retracts in the gate valve cavity along with the movement of the rotating mechanism and always abuts against the outer surface of the rotating mechanism, so that the sealed working space is divided into two piston spaces which are respectively communicated with the fluid inlet and the fluid outlet on the cylinder body.
9. The rotating device according to claim 8, further comprising: a gate valve reset mechanism;
a sleeve groove is arranged on the cylinder body at two sides of the circumferential direction of the gate valve inlet and outlet channel;
the gate valve reset mechanism includes:
the sleeve is fixed in the sleeve groove of the cylinder body;
the guide post is fixed on the radial outer side of the gate valve and can move in the sleeve in the radial direction;
the reset elastic piece is abutted against the upper part of the guide post;
and under the radial pressure of the reset elastic piece, the guide post is used as a connecting piece to drive the gate valve to be always pressed on the outer surface of the rotating mechanism.
10. The rotary device of claim 9, wherein:
the guide post is a cylinder;
the sleeve is cylindrical;
the sleeve groove is in an arc shape corresponding to the outer peripheral surface of the sleeve.
11. The rotary device of claim 8, wherein:
a sealing strip groove and a roller groove are respectively formed in the cylinder body on two sides of the circumferential direction of the gate valve groove;
the rotating device further includes: the sealing strip is arranged in the sealing strip groove; the roller is arranged in the roller groove; wherein, in the process that the gate valve stretches out and withdraws from the gate valve inslot, sealing strip and gyro wheel butt respectively in the circumference both sides of gate valve.
12. The rotary device of claim 11, wherein the sealing strip has a width on a side thereof adjacent to the bottom of the sealing strip groove that is greater than a width of a top portion of the sealing strip groove.
13. The rotating device according to claim 9, wherein the cylinder body is provided with inwardly-sunk annular steps at two axial sides;
the rotating device further includes: and the two side lining plates are respectively arranged on the annular steps on the corresponding axial sides of the cylinder body.
14. A rotary system, comprising:
p rotating devices, wherein P is more than or equal to 2;
wherein the P rotating devices share the same main shaft, and at least one rotating device is a rotating device according to any one of claims 8 to 13.
15. A fluid machine, characterized by comprising:
a rotary device as claimed in any one of claims 8 to 13, or a rotary system as claimed in claim 14.
16. A fluid motor, comprising:
the rotating apparatus according to any one of claims 8 to 13, or the rotating system according to claim 14;
the fluid inlet is a high-pressure fluid inlet, and the fluid outlet is a low-pressure fluid outlet;
the high-pressure fluid entering from the high-pressure fluid inlet enters the working chamber, the rotating mechanism is pushed to rotate to do work, the generated torque is transmitted to the outside of the working chamber through the main shaft, and the low-pressure fluid after doing work is discharged through the low-pressure fluid outlet.
17. A pump, comprising:
the rotating apparatus according to any one of claims 8 to 13, or the rotating system according to claim 14;
the main shaft transmits the torque to the working chamber, the rotating mechanism rotates along the working chamber under the driving of the main shaft, and the fluid is pumped in from the fluid inlet and then pumped out from the fluid outlet.
18. A compressor, comprising:
the rotating apparatus according to any one of claims 8 to 13, or the rotating system according to claim 14;
the fluid inlet is a low-pressure medium inlet, and the fluid outlet is a high-pressure medium outlet;
the main shaft transmits torque to the working chamber, the rotating mechanism rotates along the working chamber under the driving of the main shaft to compress fluid media entering from the low-pressure medium inlet, and the compressed fluid media are discharged through the high-pressure medium outlet.
19. An engine, comprising:
the rotating apparatus according to any one of claims 8 to 13, or the rotating system according to claim 14;
the fluid inlet is connected with the combustion chamber, and the fluid outlet is connected with the waste gas outlet;
high-pressure gas entering from the combustion chamber pushes the rotating mechanism to rotate to do work, the generated torque is transmitted out of the working cavity through the main shaft, and low-pressure gas after doing work is discharged to a waste gas discharge port through the fluid outlet.
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| CN202011615231.5A CN112796989B (en) | 2020-12-30 | 2020-12-30 | Rotating device, rotating system, and fluid machine |
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| CN202011615231.5A CN112796989B (en) | 2020-12-30 | 2020-12-30 | Rotating device, rotating system, and fluid machine |
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| CN112796989B (en) | 2022-08-23 |
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