CN117287443A - Hydraulic cylinder device of axial flow fan with adjustable movable blades of thermal power plant - Google Patents
Hydraulic cylinder device of axial flow fan with adjustable movable blades of thermal power plant Download PDFInfo
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- CN117287443A CN117287443A CN202311231250.1A CN202311231250A CN117287443A CN 117287443 A CN117287443 A CN 117287443A CN 202311231250 A CN202311231250 A CN 202311231250A CN 117287443 A CN117287443 A CN 117287443A
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- hydraulic cylinder
- reversing
- axial flow
- flow fan
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- 238000001514 detection method Methods 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000008093 supporting effect Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 2
- 230000009471 action Effects 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000033228 biological regulation Effects 0.000 description 5
- 208000035388 Ring chromosome 22 syndrome Diseases 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2869—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using electromagnetic radiation, e.g. radar or microwaves
- F15B15/2876—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using electromagnetic radiation, e.g. radar or microwaves using optical means, e.g. laser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
The invention discloses a hydraulic cylinder device of an axial flow fan with adjustable moving blades of a thermal power plant, which relates to the related field of hydraulic cylinder equipment and comprises a hydraulic rod assembly arranged at the front side of the axial flow fan through a bolt piece, wherein the front side of the hydraulic rod assembly is provided with a flow guide assembly, the front side of the flow guide assembly is provided with an adjusting assembly for adjusting, and an adjusting cylinder is used for pushing a rotating block to displace towards the rear side and rotate, so that the rotating block provides thrust and rotating force for a reversing body through a connecting rod, and two groups of second flow guide channels in the reversing body displace and are respectively communicated with two groups of first flow guide channels; the pressure adjusting action of the front side cavity and the rear side cavity of the metal frame and the piston body can be changed by adjusting the position and the angle of the reversing body, and when the pressure in the front side cavity and the rear side cavity of the piston body is changed, the pressure membrane in the detection shell can correspondingly displace along with the pressure in the cylinder, so that the pressure in the front side cavity and the rear side cavity of the piston body is detected in real time through the detector.
Description
Technical Field
The invention relates to the related field of hydraulic cylinder equipment, in particular to a hydraulic cylinder device of an adjustable axial flow fan of a movable blade of a thermal power plant.
Background
The movable vane adjustable axial flow fan consists of an air inlet chamber, a collector, an impeller, a rear guide vane, a diffuser, a movable vane adjusting mechanism and the like; the hydraulic cylinder and the control head assembly are important parts of the power source; the axial flow fan has very wide application, and can be used for ventilation or enhanced heat dissipation in places such as metallurgy, chemical industry, light industry, food and the like.
The existing hydraulic cylinder for the movable vane adjustable axial flow fan of the thermal power plant lacks sliding feedback to an installed piston rod, so that the failure times of the hydraulic cylinder are improved, and the running reliability and stability of the movable vane adjustable axial flow fan are reduced; meanwhile, the existing hydraulic cylinder needs to be subjected to efficient sealing design by a control head valve body and a control head valve core due to rotation of an axial flow fan, so that the operation abrasion phenomenon of the hydraulic cylinder is obvious, and the service life of the hydraulic cylinder is shortened; meanwhile, the prior art lacks consideration of the phenomenon that the internal pressure of the hydraulic cylinder is high and the piston body is offset due to resistance after adjustment, so that the axial flow fan is difficult to adjust the fan blades efficiently and accurately due to external resistance.
Disclosure of Invention
Therefore, in order to solve the defects, the invention provides a hydraulic cylinder device of an adjustable axial flow fan of a movable blade of a thermal power plant.
The invention is realized in such a way that a hydraulic cylinder device of an axial flow fan with adjustable moving blades of a thermal power plant is constructed, the device comprises a hydraulic rod assembly arranged at the front side of the axial flow fan through a bolt piece, a flow guide assembly is arranged at the front side of the hydraulic rod assembly, and an adjusting assembly for adjusting is arranged at the front side of the flow guide assembly;
the hydraulic lever assembly includes: the middle side bolt at the front end of the axial flow fan is detected and installed with the hydraulic cylinder body; the piston rods are arranged at the circle center through holes of the front side and the rear side of the hydraulic cylinder body in a sliding manner; the adjusting disc is arranged at the rear end of the piston rod through bolts, and is used for adjusting; the middle side of the piston rod is fixedly welded with a metal frame which plays a role in supporting; the inner side and the outer side of the metal frame are respectively provided with a piston body for sealing; the first guide pipe is arranged at the through groove at the inner side of the piston rod in a pipeline manner; the pipeline at the through groove at the inner side of the piston rod is provided with the second conduit; the detection piece, pneumatic cylinder body front end and top welded fastening have the detection piece that is used for detecting.
Preferably, the first guide pipe and the second guide pipe are respectively arranged with the pipeline at the through holes of the front cavity and the rear cavity of the piston body, and the second guide pipe and the piston rod are arranged in concentric circles.
Preferably, the detecting member includes: the welding piece is fixedly welded at the front end and the top of the hydraulic cylinder body; the welding piece is inserted and fixed at the periphery of the detection shell; the pressure air film is arranged at the through hole at the rear side of the detection shell; the miniature rubber body is arranged in the detection shell in a sliding manner; the miniature rubber body is fixedly connected with a detection contact at the rear side of the detector; the detector is electrically connected to an external power source.
Preferably, the rear side of the detection shell is provided with a square through hole, and the inside of the through hole is provided with a circular arc-shaped pressure air film for blocking.
Preferably, the flow guiding assembly comprises: the plane bolt at the front end of the piston rod is provided with a light source piece; the front side of the piston rod is slidingly arranged at the inner ring of the limiting ring; the light sensor is arranged at the through grooves on the upper side and the lower side of the limiting ring through bolts and used for detecting; the reversing piece is arranged on the bolt at the front side of the limiting ring and used for reversing; the light source piece and the light sensor are electrically connected with an external power supply.
Preferably, the reversing element includes: the first guide pipe and the second guide pipe are respectively inserted and fixed at the through holes of the rotating disk; the rotary disk is rotatably arranged at the rear end of the fixed disk; the rotary disk is rotatably arranged at the groove body at the rear side of the fixed cylinder body; the fixed cylinder body is internally provided with a first diversion channel for diversion; the reversing body is rotatably arranged in the fixed cylinder body and used for guiding and reversing; the reversing body is internally provided with a second diversion channel for diversion and reversing; the pressure valve is arranged at the front end pipeline of the reversing body; the pressure valve is electrically connected to an external power source.
Preferably, two groups of second guide channels are arranged in the reversing body, the two groups of second guide channels are in an F shape, and the two groups of second guide channels and the pressure valve are respectively installed with an external oil inlet pipe and an external oil outlet pipe.
Preferably, the adjusting assembly comprises: the middle side bolt at the front end of the reversing body is provided with a connecting rod for traction; the connecting rod is fixed at the middle side of the rear end of the rotating block in a welding way; the arc-shaped groove is arranged on the outer side of the rotating block, and the arc-shaped groove is used for rotary guiding.
Preferably, the adjusting assembly further comprises: the adjusting cylinder body is internally provided with a guide rod in the adjusting cylinder body in a sliding manner; the adjusting cylinder is mounted at the front end of the adjusting cylinder body through bolts and used for adjusting.
Preferably, the rotation angles of the reversing body and the rotating block are all angle, sealing glue for sealing is arranged on the outer side of the reversing body, and first guide channels are arranged on the upper side and the lower side of the inner portion of the fixed cylinder body.
The invention has the following advantages: the invention provides a hydraulic cylinder device of an adjustable axial flow fan of a movable blade of a thermal power plant through improvement, which has the following improvement compared with the same type of equipment:
according to the hydraulic cylinder device of the movable vane adjustable axial flow fan of the thermal power plant, the rotary block is pushed to displace towards the rear side by the adjusting cylinder and rotates, so that the rotary block provides thrust and rotating force for the reversing body through the connecting rod, and two groups of second guide channels in the reversing body displace and are respectively communicated with two groups of first guide channels; the pressure regulating action on the front and rear side cavities of the metal frame and the piston body can be changed by regulating the position and the angle of the reversing body, and when the pressure in the front and rear side cavities of the piston body is changed, the pressure membrane in the detection shell can correspondingly displace along with the in-cylinder pressure, so that the pressure in the front and rear side cavities of the piston body is detected in real time through the detector; the piston rod is used for carrying the light source part at the front end of the piston rod along with displacement and rotation, so that the light source part emits light source to carry out light sensation detection with the light sensor, the displacement value of the piston rod is calculated according to the detection data of the light sensor, and the condition that the hydraulic pressure fluctuation in the hydraulic cylinder body is large due to resistance when the adjusting disc is used for carrying out displacement adjustment can be detected in real time, so that the efficient adjusting effect of the piston rod is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic perspective cross-sectional view of the hydraulic lever assembly of the present invention;
FIG. 3 is a schematic view of the internal structure of the detecting member of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A in accordance with the present invention;
FIG. 5 is a schematic perspective view of a baffle assembly according to the present invention;
FIG. 6 is a schematic perspective cross-sectional view of the reversing element of the present invention;
fig. 7 is a schematic perspective cross-sectional view of an adjustment assembly of the present invention.
Wherein: the hydraulic rod assembly-1, the flow guiding assembly-2, the adjusting assembly-3, the hydraulic cylinder body-11, the piston rod-12, the adjusting disk-13, the metal frame-14, the piston body-15, the first guide pipe-16, the second guide pipe-17, the detecting piece-18, the welding piece-181, the detecting shell-182, the pressure air film-183, the pressure film-184, the detector-185, the light source piece-21, the limiting ring-22, the light sensor-23, the reversing piece-24, the rotating disk-241, the fixed disk-242, the fixed cylinder-243, the first flow guiding channel-244, the reversing body-245, the second flow guiding channel-246, the pressure valve-247, the connecting rod-31, the rotating block-32, the arc groove-33, the adjusting cylinder-34 and the adjusting cylinder-35.
Detailed Description
The principles and features of the present invention are described below with reference to fig. 1-7, the examples being provided for illustration only and not for limitation of the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiment one:
referring to fig. 1 to 7, the hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant comprises a hydraulic rod assembly 1 arranged on the front side of the axial flow fan through a bolt piece, wherein a flow guide assembly 2 is arranged on the front side of the hydraulic rod assembly 1, and an adjusting assembly 3 for adjusting is arranged on the front side of the flow guide assembly 2;
the hydraulic rod assembly 1 comprises a hydraulic cylinder body 11, the middle side bolt at the front end of an axial flow fan is used for detecting and installing the hydraulic cylinder body 11, a piston rod 12 is slidably arranged at a through hole at the center of the circle of the front side and the rear side of the hydraulic cylinder body 11, an adjusting disc 13 used for adjusting is arranged at the rear end of the piston rod 12 through a bolt, an adjusting disc 13 is provided with an adjusting effect through the piston rod 12, a metal frame 14 used for supporting is fixedly welded at the middle side of the piston rod 12, a piston body 15 used for sealing is arranged at the inner side and the outer side of the metal frame 14, the supporting effect is provided for the piston body 15 through the metal frame 14, a first guide pipe 16 is arranged at a pipeline at a through groove at the inner side of the piston rod 12, a second guide pipe 17 is arranged at a pipeline at a through groove at the inner side of the piston rod 12, and a detecting part 18 used for detecting is fixedly welded at the front end and the top of the hydraulic cylinder body 11;
the first guide pipe 16 and the second guide pipe 17 are respectively arranged at the through holes of the front cavity and the rear cavity of the piston body 15 in a pipeline manner, the second guide pipe 17 and the piston rod 12 are arranged in a concentric circle manner, and the first guide pipe 16 and the second guide pipe 17 provide a flow guiding effect for the front cavity and the rear cavity of the piston body 15;
the detection member 18 comprises a welding member 181, the front end and the top of the hydraulic cylinder body 11 are fixedly welded with the welding member 181, the welding member 181 is fixedly spliced around the detection housing 182, a pressure air film 183 is arranged at a through hole at the rear side of the detection housing 182, a miniature rubber body 184 is slidably arranged inside the detection housing 182, the miniature rubber body 184 is fixedly connected with a detection contact at the rear side of the detector 185, and the detector 185 is electrically connected with an external power supply to provide electric energy for the detector 185; the rear side of the detection shell 182 is provided with a square through hole, the inside of the through hole is provided with a circular arc-shaped pressure air film 183 for blocking, and a flow blocking effect is provided for the through hole at the rear side of the detection shell 182 through the pressure air film 183;
the flow guide assembly 2 comprises a light source piece 21, wherein the light source piece 21 is arranged on a plane bolt at the front end of a piston rod 12, the front side of the piston rod 12 is slidingly arranged at the inner ring of a limiting ring 22, a light sensor 23 for detection is arranged on a bolt at a through groove at the upper side and the lower side of the limiting ring 22, a reversing piece 24 for reversing is arranged on a bolt at the front side of the limiting ring 22, and the light source piece 21 and the light sensor 23 are electrically connected with an external power supply to supply electric energy for the light source piece 21 and the light sensor 23;
the reversing piece 24 comprises a rotary disc 241, a first guide pipe 16 and a second guide pipe 17 are respectively inserted and fixed at a through hole of the rotary disc 241, the rotary disc 241 is rotatably arranged at the rear end of a fixed disc 242, the rotary disc 241 is rotatably arranged at a groove body at the rear side of a fixed cylinder 243, a cavity flow separation effect is provided for the first guide pipe 16 and the second guide pipe 17 through the rotary disc 241, a first flow guide channel 244 for flow guiding action is arranged in the fixed cylinder 243, a reversing body 245 for flow guiding reversing is rotatably arranged in the fixed cylinder 243, a second flow guide channel 246 for flow guiding reversing is arranged in the reversing body 245, a pressure valve 247 is arranged at the front end pipeline of the reversing body 245, and the pressure valve 247 is electrically connected with an external power supply to supply electric energy for the pressure valve 247;
two groups of second guide channels 246 are arranged in the reversing body 245, the two groups of second guide channels 246 are in an F shape, and the two groups of second guide channels 246 and the pressure valve 247 are respectively arranged with an external oil inlet pipe and an external oil outlet pipe; the rotation angle of the reversing body 245 is 180 degrees, sealing glue for sealing is arranged on the outer side of the reversing body 245, and first guide channels 244 are arranged on the upper side and the lower side of the inner portion of the fixed cylinder 243.
The working principle of the hydraulic cylinder device of the movable blade adjustable axial flow fan of the thermal power plant based on the first embodiment is as follows:
firstly, when the equipment is used, the equipment is firstly placed in a working area, and then the device is connected with an external power supply, so that the power supply required by the work of the equipment can be provided.
Secondly, when the fan blades of the axial fan are adjusted, the adjusting component 3 provides thrust and rotating force for the reversing body 245, so that the reversing body 245 can synchronously rotate 180 degrees while being displaced forwards and backwards, and two groups of second guide channels 246 in the reversing body 245 are displaced and are respectively communicated with two groups of first guide channels 244;
third, when the second guide flow passage 246 at the inner top side of the reversing body 245 is communicated with the first guide flow passage 244 at the inner top side of the fixed cylinder 243, the second guide pipe 17 and the rear side cavity of the piston body 15 are communicated with the pressure valve 247 of the oil inlet, and the first guide pipe 16 and the front side cavity of the piston body 15 are communicated with the pressure valve 247 of the oil outlet; when the second guide flow passage 246 at the bottom side of the inside of the reversing body 245 is communicated with the first guide flow passage 244 at the top side of the inside of the fixed cylinder 243, the first guide pipe 16 and the front side cavity of the piston body 15 are communicated with the pressure valve 247 of the oil inlet;
fourth, here, the pressure adjusting actions on the front and rear side cavities of the metal frame 14 and the piston body 15 can be changed by adjusting the position and the angle of the reversing body 245, when the pressure in the front and rear side cavities of the piston body 15 is changed, the pressure membrane 184 in the detecting housing 182 is correspondingly displaced along with the in-cylinder pressure, so that the pressure in the front and rear side cavities of the piston body 15 is detected in real time by the detector 185;
fifth, during the rotation of the piston rod 12 along with the adjusting disk 13 and the axial flow fan, the rotation of the rotating disk 241 can ensure that the first guide pipe 16 and the second guide pipe 17 are communicated with the two groups of first guide channels 244;
sixth, when the piston rod 12 rotates and displaces along with the metal frame 14 and the piston body 15, at this time, the piston rod 12 carries the light source member 21 at the front end of the piston rod along with the displacement and rotation, so that the light source member 21 emits light to perform light sensing detection with the light sensor 23, thereby calculating the displacement value of the piston rod 12 according to the detection data of the light sensor 23, and being capable of detecting the condition that the internal hydraulic fluctuation of the hydraulic cylinder body 11 is large due to resistance when the adjusting disc 13 performs displacement adjustment, thereby being beneficial to improving the efficient adjusting effect of the piston rod 12.
Embodiment two:
referring to fig. 1 to 7, in the hydraulic cylinder device of the adjustable axial flow fan of the movable vane of the thermal power plant according to the present invention, compared with the first embodiment, the embodiment further includes: an adjustment assembly 3;
the adjusting component 3 comprises a connecting rod 31, the connecting rod 31 for traction is mounted on the middle side bolt at the front end of the reversing body 245, the connecting rod 31 is welded and fixed on the middle side of the rear end of the rotating block 32, an arc-shaped groove 33 for rotary guiding is arranged on the outer side of the rotating block 32, a guide rod inside an adjusting cylinder body 34 is slidably arranged inside the arc-shaped groove 33, and an adjusting cylinder 35 for adjusting is mounted on the front end bolt of the adjusting cylinder body 34.
In this embodiment:
when needs carry out the regulation action to water conservancy diversion subassembly 2, this moment is inside giving the regulation cylinder 35 with high-pressure gas output through outside air supply to make the regulation cylinder 35 promote rotatory piece 32 to the rear side displacement, carry out spacing slip through the arc wall 33 in rotatory piece 32 outside and the inside guide arm of regulation cylinder body 34 this moment, thereby make rotatory piece 32 can rotate in the displacement, thereby make rotatory piece 32 drive the switching-over body 245 through connecting rod 31 and adjust, be favorable to improving the high-efficient regulation effect to water conservancy diversion subassembly 2.
The invention provides a hydraulic cylinder device of an adjustable axial flow fan of a movable blade of a thermal power plant, which is characterized in that a rotary block 32 is pushed to displace towards the rear side and rotate by an adjusting cylinder 35, so that the rotary block 32 provides thrust and rotary force for a reversing body 245 through a connecting rod 31, and two groups of second guide channels 246 in the reversing body 245 displace and are respectively communicated with two groups of first guide channels 244; the pressure adjusting actions on the metal frame 14 and the front and back side cavities of the piston body 15 can be changed by adjusting the position and the angle of the reversing body 245, when the pressure in the front and back side cavities of the piston body 15 is changed, the pressure membrane 184 in the detection shell 182 is correspondingly displaced along with the in-cylinder pressure, so that the pressure in the front and back side cavities of the piston body 15 is detected in real time by the detector 185; the piston rod 12 carries the light source piece 21 at the front end of the piston rod to follow the displacement and rotation, so that the light source piece 21 emits light to perform light sensation detection with the light sensor 23, the displacement value of the piston rod 12 is calculated according to the detection data of the light sensor 23, and the condition that the internal hydraulic fluctuation of the hydraulic cylinder body 11 is large due to resistance when the adjusting disc 13 is subjected to displacement adjustment can be detected in real time, so that the efficient adjusting effect of the piston rod 12 is improved.
The basic principle and main characteristics of the invention and the advantages of the invention are shown and described above, standard parts used by the invention can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolt rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The hydraulic cylinder device of the movable blade adjustable axial flow fan of the thermal power plant comprises a hydraulic rod assembly (1) arranged on the front side of the axial flow fan through a bolt piece, wherein a flow guide assembly (2) is arranged on the front side of the hydraulic rod assembly (1), and an adjusting assembly (3) for adjusting is arranged on the front side of the flow guide assembly (2);
the hydraulic lever assembly (1) comprises: the hydraulic cylinder body (11) is arranged at the middle side bolt of the front end of the axial flow fan in a detecting mode; the piston rods (12) are arranged at the circle center through holes of the front side and the rear side of the hydraulic cylinder body (11) in a sliding mode; an adjusting disc (13), wherein an adjusting disc (13) for adjusting is arranged at the rear end of the piston rod (12) through a bolt; a metal frame (14), wherein the metal frame (14) with supporting function is welded and fixed on the middle side of the piston rod (12); the piston body (15) is arranged on the inner side and the outer side of the metal frame (14), and the piston body (15) is used for sealing; the first guide pipe (16) is arranged at the pipeline at the through groove of the inner side of the piston rod (12); the second guide pipe (17) is arranged at the pipeline at the through groove of the inner side of the piston rod (12); the detection part (18), the detection part (18) used for detecting is welded and fixed at the front end and the top of the hydraulic cylinder body (11).
2. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 1, wherein: the first guide pipe (16) and the second guide pipe (17) are respectively and circularly arranged at the through holes of the front cavity and the rear cavity of the piston body (15) in a pipeline manner, and the second guide pipe (17) and the piston rod (12) are concentrically arranged.
3. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 2, wherein: the detection member (18) includes: the welding piece (181) is welded and fixed at the front end and the top of the hydraulic cylinder body (11); the welding piece (181) is inserted and fixed at the periphery of the detection shell (182); the pressure air film (183) is arranged at the rear through hole of the detection shell (182); the miniature rubber body (184) is arranged in the detection shell (182) in a sliding manner; the miniature rubber body (184) is fixedly connected with a detection contact at the rear side of the detector (185); the detector (185) is electrically connected to an external power source.
4. A hydraulic cylinder device of an adjustable axial flow fan for a moving blade of a thermal power plant according to claim 3, wherein: the rear side of the detection shell (182) is provided with a square through hole, and a circular arc-shaped pressure air film (183) for blocking is arranged in the through hole.
5. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 4, wherein: the flow guiding assembly (2) comprises: a light source piece (21), wherein the light source piece (21) is installed on the plane bolt at the front end of the piston rod (12); the front side of the piston rod (12) is slidingly arranged at the inner ring of the limiting ring (22); the optical sensor (23) is arranged at the through grooves on the upper side and the lower side of the limiting ring (22) through bolts, and the optical sensor (23) is used for detecting the effect; the reversing piece (24) is arranged on the front side of the limiting ring (22) through bolts, and the reversing piece (24) is used for reversing; the light source piece (21) and the light sensor (23) are electrically connected with an external power supply.
6. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 5, wherein: the reversing element (24) comprises: the first guide pipe (16) and the second guide pipe (17) are respectively inserted and fixed at the through holes of the rotating disk (241); a fixed disk (242), the rotary disk (241) being rotatably provided at a rear end of the fixed disk (242); a fixed cylinder (243), wherein the rotary disk (241) is rotatably arranged at the rear side groove of the fixed cylinder (243); a first flow guide channel (244), wherein the first flow guide channel (244) for flow guiding is arranged in the fixed cylinder (243); the reversing body (245) is rotatably arranged in the fixed cylinder body (243), and the reversing body (245) is used for diversion and reversing; the second diversion channel (246) is arranged in the reversing body (245), and the second diversion channel (246) is used for diversion and reversing; a pressure valve (247), wherein a pressure valve (247) is arranged on a pipeline at the front end of the reversing body (245); the pressure valve (247) is electrically connected to an external power source.
7. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 6, wherein: two groups of second guide channels (246) are arranged in the reversing body (245), the two groups of second guide channels (246) are in an F shape, and the two groups of second guide channels (246) and the pressure valve (247) are respectively installed with an external oil inlet pipe and an external oil outlet pipe.
8. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 7, wherein: the adjusting assembly (3) comprises: a connecting rod (31), wherein a connecting rod (31) for traction is arranged on a bolt at the middle side of the front end of the reversing body (245); a rotating block (32), wherein the connecting rod (31) is welded and fixed on the middle side of the rear end of the rotating block (32); and an arc groove (33), wherein an arc groove (33) for rotary guiding is arranged on the outer side of the rotary block (32).
9. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 8, wherein: the adjusting assembly (3) further comprises: the adjusting cylinder body (34) is arranged in the arc-shaped groove (33) in a sliding manner, and a guide rod in the adjusting cylinder body (34) is arranged in the arc-shaped groove; and the adjusting cylinder (35) is arranged at the front end of the adjusting cylinder body (34) through bolts, and the adjusting cylinder (35) is used for adjusting.
10. The hydraulic cylinder device of the adjustable axial flow fan of the movable blade of the thermal power plant according to claim 8, wherein: the rotation angles of the reversing body (245) and the rotating block (32) are 180 degrees, sealing glue spreading for sealing is arranged on the outer side of the reversing body (245), and first guide channels (244) are arranged on the upper side and the lower side of the inner portion of the fixed cylinder body (243).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311231250.1A CN117287443A (en) | 2023-09-22 | 2023-09-22 | Hydraulic cylinder device of axial flow fan with adjustable movable blades of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311231250.1A CN117287443A (en) | 2023-09-22 | 2023-09-22 | Hydraulic cylinder device of axial flow fan with adjustable movable blades of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117287443A true CN117287443A (en) | 2023-12-26 |
Family
ID=89251200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311231250.1A Pending CN117287443A (en) | 2023-09-22 | 2023-09-22 | Hydraulic cylinder device of axial flow fan with adjustable movable blades of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117287443A (en) |
-
2023
- 2023-09-22 CN CN202311231250.1A patent/CN117287443A/en active Pending
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