CN113514089A - Protection device for metering instrument of thermal power plant - Google Patents
Protection device for metering instrument of thermal power plant Download PDFInfo
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- CN113514089A CN113514089A CN202110407688.5A CN202110407688A CN113514089A CN 113514089 A CN113514089 A CN 113514089A CN 202110407688 A CN202110407688 A CN 202110407688A CN 113514089 A CN113514089 A CN 113514089A
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- 238000003825 pressing Methods 0.000 claims abstract description 99
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 99
- 238000012546 transfer Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 244000309464 bull Species 0.000 claims 3
- 230000010355 oscillation Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000005056 compaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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Abstract
The invention provides a protection device for a metering instrument of a thermal power plant, which comprises an instrument main body, a main body protection assembly, an external interface protection assembly and an instrument interface assembly, wherein the instrument main body is provided with a main body protection assembly; the instrument main body is arranged in the main body protection assembly, the main instrument body in the instrument main body is elastically connected with the adjusting top column in the main body protection assembly, and the adjusting top column can be elastically adjusted according to the actual installation condition; the two sides of the protective shell in the main body protection assembly are also provided with external interface protection assemblies, the external part of an external connecting pipe in the external interface protection assemblies is provided with a spiral damping sleeve, so that the conduction stress in the external interface can be removed, and the external connecting pipe adopts an automatic clamping and pressing design; an instrument inlet and an instrument outlet in the instrument interface assembly are automatically clamped in an inlet and outlet clamping position in the external interface protection assembly, and a driving source and the automatic clamping pressure of an external connecting pipe are the same power; the invention solves the problems of poor shock absorption performance of the instrument and inconvenient hard connection and disassembly with the pipeline, and protects the instrument main body from being influenced by pipeline oscillation.
Description
Technical Field
The invention relates to the field of instruments and meters, in particular to a protection device for a metering instrument of a thermal power plant.
Background
In the measurement of heat supply in a thermal power plant, a conventional measurement method is that a measurement instrument is connected to a conveying pipeline in a threaded manner, and gas, heat and the like in the conveying pipeline directly enter an instrument main body for measurement.
When the industry develops rapidly, the process of each manufacturing industry tends to be accurate, and particularly relates to the field of energy manufacturing. Along with the development of thermal power plant thermodynamic equipment towards high capacity and high parameter, the automation level of the power plant is increased day by day, the requirements on the accuracy and reliability of heat supply measurement are higher and higher, the influence of pipeline oscillation jitter on a measuring instrument in conventional reading is larger, and the measuring reading has errors, so that a protection device for the instrument is needed to eliminate the influence of pipeline oscillation and improve the measurement precision.
However, the existing instrument protection device can only solve the problem of rain resistance and water resistance, a feasible solution is not available for eliminating the oscillation, the tightness of the instrument is very good, and the water resistance does not need to be considered at all. Protection device for steam power plant metering device as disclosed in prior art (CN 212300391U), comprising a supporting plate, the both sides of backup pad bottom all are provided with the curb plate, the top of curb plate is seted up flutedly, through setting up the backup pad, the curb plate, a groove, the arc seat, the conveyer pipe, the internal thread piece, and a housing, the external screw thread pipe, the metering device main part, stop gear, the mount pad, the box, locking mechanism, a handle, the slide bar, the sliding sleeve, mutually supporting of second spring and bolt reaches the purpose of stabilizing the metering device main part, its metering device main part does not communicate with the conveyer pipe, only can solve present that the instrument body shakes the influence, need instrument main part and conveyer pipe intercommunication measurement to carry out effectual protection under most of the circumstances.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a protection device for a metering instrument of a thermal power plant, which comprises an instrument main body, a main body protection assembly, an external interface protection assembly and an instrument interface assembly, wherein the instrument main body comprises a main instrument body, an instrument inlet and an instrument outlet, the main body protection assembly comprises a protection shell and an interface installation position, the external interface protection assembly comprises an external connecting pipe and an inlet and outlet clamping position, the instrument interface assembly comprises an instrument connecting pipe locking block, the main instrument body in the instrument main body is a metering function main body, the instrument inlet is arranged at one side of the main instrument body, the instrument outlet is arranged at the other side of the main instrument body, the protection shell in the main body protection assembly is positioned at the periphery of the main instrument body, the protection shell is of a hollow cylindrical structure, and the interface installation positions are respectively arranged at two sides of the protection shell, two groups of external connecting pipes in the external interface protection assembly are respectively inserted and installed in the interface installation positions, an inlet and outlet clamping position is respectively arranged on two sides of one end of each external connecting pipe, and two groups of instrument connecting pipe locking blocks in the instrument interface assembly are respectively inserted and installed in the inlet and outlet clamping positions;
the inlet and outlet clamping grooves in the instrument main body are respectively arranged on one sides of the instrument inlet and the instrument outlet, which are far away from the main meter body, and four groups of connecting columns are uniformly distributed on the outer side of the main meter body;
four groups of adjusting ejection columns in the main body protection assembly are symmetrically inserted on the outer cylindrical surface of the protective shell, one end of an adjusting pressure spring is inserted and installed on the connecting column, the other end of the adjusting pressure spring is inserted and installed on the adjusting ejection column, the outer cylindrical surface of the protective shell is also rotatably connected with an adjusting chassis, an adjusting inner gear is fixedly installed on the end surface of one side of the adjusting chassis, an adjusting fixing seat is arranged on the end surface of one side of the protective shell close to the adjusting chassis, adjusting gear shafts are respectively and fixedly installed on two sides of the main plane of the adjusting fixing seat, an adjusting transmission gear is rotatably connected on the adjusting gear shaft on one side, an adjusting auxiliary gear is rotatably connected on the adjusting gear shaft on the other side, an adjusting driving gear is arranged on one side of the adjusting transmission gear, and an adjusting driving motor is connected with the adjusting driving gear shaft, the adjusting driving motor is fixedly arranged on the main plane of the adjusting fixing seat, one end of the adjusting ejection column is provided with adjusting ejection column spiral teeth, and one end of the adjusting chassis, which is close to the adjusting ejection column, is provided with adjusting chassis spiral teeth;
an outer connecting pipe lower pressing block in the external interface protection assembly is arranged at the lower part of the end face of the external side of the interface mounting position, an outer connecting pipe upper pressing block is arranged at the upper part of the end face of the external side of the interface mounting position, two groups of pressing block rotating shafts are respectively and rotatably connected to the outer connecting pipe upper pressing block, two groups of pressing block rotating shafts are respectively positioned at two sides of the outer connecting pipe, one ends of the two groups of pressing block rotating shafts are fixedly provided with outer connecting pipe pressing blocks, the outer connecting pipe pressing blocks are positioned between the outer connecting pipe lower pressing block and the outer connecting pipe upper pressing block, the other end of one group of pressing block rotating shafts is fixedly provided with a pressing block rotating gear, the other end of the other group of pressing block rotating shafts is fixedly provided with an opposite pressing block rotating gear, one side of the pressing block rotating gear is provided with a pressing transmission gear wheel, and the pressing transmission gear wheel is rotatably connected to a pressing transmission gear shaft, the compressing and transmitting large gear shaft is fixedly arranged on the end surface of the top of the interface mounting position, the compressing and transmitting large gear shaft is a universal component, the opposite compaction transmission large gear is positioned on one side of the opposite compaction block rotating gear and is rotationally connected with the compaction transmission large gear shaft, one side of the opposite pressing transmission big gear is provided with an opposite transmission small gear which is rotationally connected with the pressing transmission big gear shaft, a pressing driving gear is arranged on one side of the pressing transmission big gear, a pressing driving motor is connected with the pressing driving gear shaft, the compression driving motor is fixedly arranged on the end face of the top of the interface mounting position, an external connection pipe clamping groove is formed in the position where the external connection pipe is matched with the external connection pipe compression block, and a spiral damping sleeve is inserted and mounted between the external connection pipe and an inner hole of the interface mounting position;
the transmission worm in the instrument interface assembly is fixedly connected with the top of the opposite transmission pinion, the transmission worm wheel is positioned on one side of the transmission worm wheel, the transmission worm wheel is fixedly arranged at one end of a transverse transmission shaft, the other end of the transverse transmission shaft is fixedly provided with a connection worm, the transverse transmission shaft is rotatably connected with a transverse transmission shaft seat, the transverse transmission shaft seat is fixedly arranged on the end surface of the top of the interface mounting position, one side of the connection worm wheel is provided with a connection worm wheel, the connection worm wheel is fixedly arranged at one end of a longitudinal connecting shaft, the other end of the longitudinal connecting shaft is fixedly provided with an instrument connecting pipe locking gear, the longitudinal connecting shaft is rotatably connected with a longitudinal connecting shaft seat, the longitudinal connecting shaft seat is fixedly arranged on the interface mounting position, and two sides of the instrument connecting pipe locking gear are respectively provided with an instrument connecting pipe locking rack, and the two groups of instrument connecting pipe locking racks are fixedly connected with the instrument connecting pipe locking block through rack connecting blocks respectively.
Furthermore, the connecting column is of a stepped cylindrical structure with a small upper part and a large lower part, and the adjusting top column corresponding to the connecting column is also provided with a stepped shaft for clamping and adjusting the pressure spring.
Furthermore, the four groups of adjusting top columns are coaxial with the four groups of connecting columns respectively.
Furthermore, a plurality of groups of clamping grooves are formed in the end face, used for installing and adjusting the inner gear, of the adjusting chassis, and bosses are arranged at positions, corresponding to the clamping grooves in the adjusting chassis, of the adjusting inner gear.
Further, the outer connecting pipe is inserted into an inner hole in the middle of the interface mounting position from inside to outside.
Furthermore, the external pipe lower pressing block and the external pipe upper pressing block form a round hole structure together, and an external pipe is installed in the round hole structure in an inserting connection mode.
Further, the rotation center of the transverse transmission shaft is perpendicular to the rotation center of the longitudinal connecting shaft.
Furthermore, the instrument connecting pipe locking gear drives the two groups of instrument connecting pipe locking racks to operate simultaneously, and the operation of the two groups of instrument connecting pipe locking racks is opposite to each other.
Compared with the traditional protection device for the metering instrument of the thermal power plant, the protection device for the metering instrument of the thermal power plant provided by the invention has the following advantages:
according to the invention, the connecting column is arranged on the outer side of the instrument main body and is connected with the adjusting ejection column in the main body protection assembly through the pressure adjusting spring, so that the shock absorption protection effect on the main instrument body in the instrument main body is achieved, and a plurality of groups of adjusting ejection columns are in matched transmission with the same adjusting chassis spiral tooth arranged in the adjusting chassis through the adjusting ejection column spiral tooth, so that the synchronous adjustment of the tightness of the groups of pressure springs is realized, and the shock absorption amount can be adjusted according to different installation environments.
The external interface protection assembly is characterized in that a spiral damping sleeve is sleeved outside an external connecting pipe, and the influence of vibration of an external pipeline of an instrument main body on the main instrument body can be further eliminated through the spiral damping sleeve.
The connection of the external connecting pipe in the external interface protection assembly and the interface mounting position in the main body protection assembly, and the connection modes of the instrument inlet and the instrument outlet in the instrument main body and the external connecting pipe in the external interface protection assembly are all in clamping and pressing type connection, the operation and the installation are convenient, and the two groups of connection modes are the same driving source, so that the energy is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a protection device for a metering device of a thermal power plant according to the present invention;
FIG. 2 is a schematic view of the overall structure of the meter body of the present invention;
FIG. 3 is a schematic view of the overall structure of the main body protection assembly of the present invention;
FIG. 4 is a schematic diagram of an exploded view of the main body protection assembly of the present invention;
FIG. 5 is a schematic view of the structure of the adjusting jack-post portion of the main body protection assembly of the present invention;
FIG. 6 is a schematic view of an adjusting chassis of the main body protection assembly according to the present invention;
FIG. 7 is a schematic structural diagram of an external interface protection assembly according to the present invention;
FIG. 8 is a schematic structural view of a spiral shock sleeve portion of the external port protection assembly of the present invention;
FIG. 9 is a schematic structural diagram of an external connection pipe portion of the external interface protection assembly according to the present invention;
FIG. 10 is a schematic diagram of the structure of the access port latching portion of the external interface protection assembly according to the present invention;
FIG. 11 is a schematic view of the overall structure of the meter interface assembly of the present invention. .
Reference numerals: 1. a meter main body; 2. a main body protection assembly; 3. an external interface protection assembly; 4. an instrument interface assembly; 101. a main watch body; 102. an instrument inlet; 103. an instrument outlet; 104. an inlet and an outlet clamping groove; 105. connecting columns; 201. a protective housing; 202. adjusting the top column; 203. adjusting a pressure spring; 204. adjusting the chassis; 205. an adjustable internal gear; 206. adjusting the fixed seat; 207. adjusting the transmission gear; 208. adjusting a gear shaft; 209. adjusting the drive gear; 210. adjusting the drive motor; 211. adjusting the auxiliary gear; 212. an interface mounting position; 213. adjusting the spiral teeth of the chassis; 214. adjusting the spiral teeth of the top column; 301. an external connection pipe; 302. a lower pressing block of the external connecting pipe; 303. pressing blocks on the external connecting pipe; 304. an external connection pipe pressing block; 305. a compact block rotating shaft; 306. the pressing block rotates the gear; 307. the opposite pressing block rotates the gear; 308. a compression transmission large gear shaft; 309. pressing the transmission gearwheel; 310. the large gears are pressed and transferred oppositely; 311. a pressing drive gear; 312. a pressing drive motor; 313. a counter transfer pinion; 314. an external connecting pipe clamping groove; 315. a spiral shock-absorbing sleeve; 316. the inlet and the outlet are blocked; 401. a transfer worm; 402. a transfer turbine; 403. a transverse transfer shaft; 404. a transverse transmission shaft seat; 405. connecting a worm; 406. connecting a turbine; 407. a longitudinal connecting shaft; 408. the shaft seat is longitudinally connected; 409. the instrument adapter locking gear; 410. the instrument adapter locking rack; 411. a rack connecting block; 412. the instrument takes over the locking block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example (b): as shown in figures 1, 2, 3, 4, 5 and 6, fig. 7, fig. 8, fig. 9, fig. 10, and fig. 11 show a protection device for a metering instrument of a thermal power plant, in which a main meter body 101 in a meter body 1 is a metering function body, an instrument inlet 102 is disposed on one side of the main meter body 101, an instrument outlet 103 is disposed on the other side of the main meter body 101, the instrument inlet 102 and the instrument outlet 103 are cylindrical structures, a protective casing 201 in a main body protection assembly 2 is located at the periphery of the main meter body 101, the protective casing 201 is a hollow cylindrical structure, interface mounting positions 212 are disposed on two sides of the protective casing 201, two sets of external connection pipes 301 in an external interface protection assembly 3 are respectively inserted into the interface mounting positions 212, inlet and outlet locking positions 316 are disposed on two sides of one end of the external connection pipes 301, and two sets of instrument connection pipe locking blocks 412 in an instrument interface assembly 4 are respectively inserted into the inlet and outlet locking positions 316;
the specific structure of the meter main body 1 is shown in fig. 2, the inlet and outlet slots 104 are respectively arranged at one side of the meter inlet 102 and the meter outlet 103 far away from the main meter body 101, and the four groups of connecting columns 105 are uniformly distributed at the outer side of the main meter body 101;
specifically, fig. 3, fig. 4, fig. 5, and fig. 6 are schematic structural diagrams of the main body protection assembly 2, wherein four groups of adjusting top columns 202 are symmetrically inserted into an outer cylindrical surface of a protective casing 201, one end of an adjusting pressure spring 203 is inserted into a connecting column 105, the other end of the adjusting pressure spring 203 is inserted into the adjusting top column 202, the outer cylindrical surface of the protective casing 201 is further rotatably connected with an adjusting chassis 204, an adjusting inner gear 205 is fixedly installed on an end surface of one side of the adjusting chassis 204, an adjusting fixing seat 206 is arranged on an end surface of one side of the protective casing 201 close to the adjusting chassis 204, adjusting gear shafts 208 are respectively and fixedly installed on two sides of a main plane of the adjusting fixing seat 206, an adjusting transmission gear 207 is rotatably connected to the adjusting gear shaft 208 on one side, an adjusting auxiliary gear 211 is rotatably connected to the adjusting gear shaft 208 on the other side, and an adjusting drive gear 209 is arranged on one side of the adjusting transmission gear 207, the adjusting drive gear 209 is in transmission fit with the adjusting transmission gear 207, the adjusting transmission gear 207 is in transmission fit with the adjusting internal gear 205, the adjusting drive motor 210 is connected with the adjusting drive gear 209 through a shaft, the adjusting drive motor 210 is fixedly mounted on the main plane of the adjusting fixing seat 206, one end of the adjusting top column 202 is provided with an adjusting top column spiral tooth 214, one end of the adjusting bottom disc 204, which is close to the adjusting top column 202, is provided with an adjusting bottom disc spiral tooth 213, and the adjusting bottom disc spiral tooth 213 is in transmission fit with the adjusting top column spiral tooth 214;
specifically, as shown in fig. 8, 9 and 10, a structural schematic diagram of the external interface protection assembly 3 is shown, an external connection tube lower pressing block 302 is disposed at a lower portion of an external end surface of the interface mounting location 212, an external connection tube upper pressing block 303 is disposed at an upper portion of the external end surface of the interface mounting location 212, two sets of pressing block rotating shafts 305 are respectively rotatably connected to the external connection tube upper pressing block 303, the two sets of pressing block rotating shafts 305 are respectively located at two sides of the external connection tube 301, one end of each of the two sets of pressing block rotating shafts 305 is fixedly mounted with an external connection tube pressing block 304, the external connection tube pressing block 304 is located between the external connection tube lower pressing block 302 and the external connection tube upper pressing block 303, one end of one set of the pressing block rotating shafts 305 is fixedly mounted with a pressing block rotating gear 306, the other end of the other set of the pressing block rotating shafts 305 is fixedly mounted with an opposite pressing block rotating gear 307, one side of the pressing block rotating gear 306 is provided with a pressing transfer large gear 309, the pressing transmission large gear 309 is rotatably connected to a pressing transmission large gear shaft 308, the pressing transmission large gear shaft 308 is fixedly installed on the end face of the top of the interface installation position 212, the pressing transmission large gear shaft 308 is a universal component, the opposite pressing transmission large gear 310 is located on one side of the opposite pressing block rotating gear 307, the opposite pressing transmission large gear 310 is rotatably connected to the pressing transmission large gear shaft 308, one side of the opposite pressing transmission large gear 310 is provided with an opposite transmission small gear 313, the opposite transmission small gear 313 is rotatably connected to the pressing transmission large gear shaft 308, one side of the pressing transmission large gear 309 is provided with a pressing driving gear 311, the pressing driving motor 312 is connected with the pressing driving gear 311 shaft, the pressing driving motor 312 is fixedly installed on the end face of the top of the interface installation position 212, the pressing driving gear 311 and the pressing transmission large gear 309 form a matched transmission, and the pressing driving gear 311 also forms a matched transmission with the opposite transmission small gear 313, an external connection pipe clamping groove 314 is formed in the position where the external connection pipe 301 is matched with the external connection pipe pressing block 304, and a spiral damping sleeve 315 is inserted and installed between the external connection pipe 301 and the inner hole of the interface installation position 212;
specifically, as shown in fig. 11, which is a schematic structural diagram of the meter interface assembly 4, a transmission worm 401 is fixedly connected with the top of an opposite transmission pinion 313, a transmission worm wheel 402 is located on one side of the transmission worm 401, the transmission worm wheel 402 is fixedly mounted at one end of a transverse transmission shaft 403, the other end of the transverse transmission shaft 403 is fixedly mounted with a connection worm 405, the transverse transmission shaft 403 is rotatably connected to a transverse transmission shaft seat 404, the transverse transmission shaft seat 404 is fixedly mounted on an end surface of the top of an interface mounting position 212, one side of the connection worm 405 is provided with a connection worm wheel 406, the connection worm wheel 406 is fixedly mounted at one end of a longitudinal connection shaft 407, the other end of the longitudinal connection shaft 407 is fixedly mounted with a meter adapter locking gear 409, the longitudinal connection shaft 407 is rotatably connected to a longitudinal connection shaft seat 408, the longitudinal connection shaft seat 408 is fixedly mounted on the interface mounting position 212, and the transmission worm 401 and the transmission worm wheel 402 form a transmission fit, the connecting worm 405 and the connecting worm wheel 406 form transmission fit, the two sides of the meter connecting pipe locking gear 409 are respectively provided with meter connecting pipe locking racks 410, and the two groups of meter connecting pipe locking racks 410 are respectively fixedly connected with a meter connecting pipe locking block 412 through a rack connecting block 411.
The working principle is as follows: when the device is installed, the external connecting pipe 301 in the external interface protection assembly 3 is communicated with an external pipeline, a spiral damping sleeve 315 is arranged between the external connecting pipe 301 in the external interface protection assembly 3 and the interface installation position 212 in the main body protection assembly 2, and the spiral damping sleeve 315 can eliminate the transmission stress in the external pipeline;
after the external stress is eliminated, the heat of the power plant enters the instrument inlet 102 in the instrument main body 1 communicated with the inlet-outlet clamp position 316 at the rear part of the external connecting pipe 301 through the external connecting pipe 301 in the external interface protection assembly 3;
the connection modes of an external connection pipe 301 in the external interface protection assembly 3, an instrument inlet 102 and an instrument outlet 103 in the instrument main body 1 are both in a quick-connection clamping and pressing design, through an external connection pipe clamping groove 314 arranged on the periphery of the external connection pipe 301, a pressing driving motor 312 is utilized to drive a pressing driving gear 311 to rotate, the pressing driving gear 311 is simultaneously in matched transmission with a pressing transmission large gear 309 and an opposite transmission small gear 313 on two sides to drive a pressing block rotating gear 306 and an opposite pressing block rotating gear 307 to rotate, the pressing block rotating gear 306 and the opposite pressing block rotating gear 307 respectively drive the external connection pipe pressing blocks 304 on two sides of the external connection pipe clamping groove 314 to rotate, and the external connection pipe 301 is clamped and loosened;
a driving source assembled on the instrument inlet 102 and the instrument outlet 103 in the instrument interface assembly 4 is also a compression driving motor 312 in the external interface protection assembly 3, the compression driving motor 312 drives a transmission worm 401 and a transmission worm wheel 402 to be matched through a reverse transmission pinion 313, the transmission worm wheel 402 drives a connection worm 405 and a connection worm wheel 406 to be matched, so that the rotation of an instrument connecting pipe locking gear 409 is realized, the instrument connecting pipe locking gear 409 is in matched transmission with instrument connecting pipe locking racks 410 on two sides, an instrument connecting pipe locking block 412 and an inlet and outlet clamping groove 104 are driven, and the clamping and the loosening of the instrument inlet 102 and the instrument outlet 103 are realized;
be connected with several groups between the main table body 101 in the instrument main part 1 and the protective housing 201 in the main part protection assembly 2 and adjust pressure spring 203, utilize and adjust pressure spring 203 and eliminate the influence of outside vibrations to main table body 101 once more, to different outside vibrations environment, several groups adjust pressure spring 203 and can accomplish the regulation of pressure in step, utilize and adjust driving motor 210 to drive and adjust drive gear 209 and rotate, adjust drive gear 209 through adjusting transfer gear 207 and adjusting internal gear 205 cooperation transmission, thereby it is rotatory to drive the regulation chassis helical tooth 213 that is arranged in adjusting chassis 204, adjust chassis helical tooth 213 and the cooperation of several groups regulation fore-set helical tooth 214, drive the removal of adjusting the fore-set 202, be used for adjusting the elasticity of adjusting pressure spring 203.
Preferably, the connecting column 105 is a stepped cylindrical structure with a small top and a large bottom, and the adjusting top column 202 corresponding to the connecting column 105 is also provided with a stepped shaft for clamping the adjusting pressure spring 203.
Preferably, four sets of adjustment posts 202 are coaxial with the four sets of attachment posts 105, respectively.
Preferably, a plurality of sets of clamping grooves are formed in the end face of the adjusting chassis 204, where the adjusting inner gear 205 is mounted, and bosses are arranged at positions of the adjusting inner gear 205 corresponding to the clamping grooves in the adjusting chassis 204.
Preferably, the extension tube 301 is inserted into the internal bore of the interface mounting site 212 from the inside out.
Preferably, the outer connecting pipe lower pressing block 302 and the outer connecting pipe upper pressing block 303 form a circular hole structure together, and the outer connecting pipe 301 is installed in the circular hole structure in an inserting mode.
Preferably, the rotation center of the lateral transfer shaft 403 is perpendicular to the rotation center of the longitudinal connection shaft 407.
Preferably, the adapter locking gear 409 drives the two sets of adapter locking racks 410 to operate simultaneously, and the operations of the two sets of adapter locking racks 410 are opposite to each other.
Preferably, square holes are formed in the regular hexagonal prism surface of the main housing 101 at positions corresponding to the telescopic auxiliary gear position 106 and the telescopic driving gear position 109.
Preferably, a cylindrical mounting position is provided at a middle position of the main housing 101 for achieving the rotational coupling of the central rotation spur gear 217.
Preferably, the telescopic cylinder 104 is a cylindrical structure, three sets of clamping tables are uniformly arranged on the outer cylindrical surface, and the clamping tables are correspondingly inserted with the telescopic clamping position 103.
Preferably, the three sets of the cooperative link positions 201, the two sets of the telescopic auxiliary gear positions 106 and the telescopic driving gear positions 109 are respectively arranged on different surfaces of the regular hexagonal prism of the main casing 101.
Preferably, all of the components used in rear arm assembly 3, except for rear arm 301, are identical to those used in front arm assembly 2.
Preferably, the front end of the rotating motor base 414 is a pointed hollow structure, and the structure of the hollow part forms a certain angle with the working surface, so that dredging and propelling are facilitated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a protection device for steam power plant's metering device which characterized in that: the device comprises an instrument main body (1), a main body protection assembly (2), an external interface protection assembly (3) and an instrument interface assembly (4);
the instrument main body (1) comprises a main instrument body (101), an instrument inlet (102) and an instrument outlet (103), the main body protection assembly (2) comprises a protective shell (201) and an interface installation position (212), the external interface protection assembly (3) comprises an external pipe (301) and an inlet-outlet clamping position (316), the instrument interface assembly (4) comprises an instrument connecting pipe locking block (412), the main instrument body (101) in the instrument main body (1) is a metering function main body, the instrument inlet (102) is arranged on one side of the main instrument body (101), the instrument outlet (103) is arranged on the other side of the main instrument body (101), the protective shell (201) is positioned on the periphery of the main instrument body (101) in the main body protection assembly (2), the protective shell (201) is of a hollow cylindrical structure, the interface installation positions (212) are respectively arranged on two sides of the protective shell (201), two groups of external tubes (301) in the external interface protection assembly (3) are respectively inserted and installed in the interface installation position (212), the two sides of one end of each external tube (301) are respectively provided with an inlet and outlet clamping position (316), and two groups of instrument connecting tube locking blocks (412) in the instrument interface assembly (4) are respectively inserted and installed in the inlet and outlet clamping positions (316);
the meter main body (1) further comprises an inlet and outlet clamping groove (104) and connecting columns (105), the inlet and outlet clamping groove (104) is respectively formed in one side, away from the main meter body (101), of the meter inlet (102) and the meter outlet (103), and the four groups of connecting columns (105) are uniformly distributed on the outer side of the main meter body (101);
four groups of adjusting top columns (202) in the main body protection assembly (2) are symmetrically inserted into the outer cylindrical surface of the protective shell (201), one end of an adjusting pressure spring (203) is inserted into the connecting column (105), the other end of the adjusting pressure spring (203) is inserted into the adjusting top columns (202), an adjusting chassis (204) is further rotatably connected onto the outer cylindrical surface of the protective shell (201), one end of each adjusting top column (202) is provided with an adjusting top column spiral tooth (214), and one end, close to the adjusting top columns (202), of the adjusting chassis (204) is provided with an adjusting chassis spiral tooth (213);
an outer connecting pipe lower pressing block (302) in the external interface protection assembly (3) is arranged at the lower part of the end face of the outer side of the interface mounting position (212), an outer connecting pipe upper pressing block (303) is arranged at the upper part of the end face of the outer side of the interface mounting position (212), two groups of pressing block rotating shafts (305) are respectively and rotatably connected to the outer connecting pipe upper pressing block (303), two groups of pressing block rotating shafts (305) are respectively positioned at two sides of an outer connecting pipe (301), outer connecting pipe pressing blocks (304) are fixedly arranged at one ends of the two groups of pressing block rotating shafts (305), the outer connecting pipe pressing blocks (304) are positioned between the outer connecting pipe lower pressing block (302) and the outer connecting pipe upper pressing block (303), a pressing block rotating gear (306) is fixedly arranged at the other end of one group of the pressing block rotating shafts (305), and an opposite pressing block rotating gear (307) is fixedly arranged at the other end of the other group of the pressing block rotating shafts (305), the compression transmission large gear shaft (308) is fixedly installed on the end face of the top of the interface installation position (212), the opposite transmission small gear (313) is rotatably connected to the compression transmission large gear shaft (308), an external pipe clamping groove (314) is formed in the position where the external pipe (301) is matched with the external pipe compression block (304), and a spiral damping sleeve (315) is installed between the external pipe (301) and the inner hole of the interface installation position (212) in an inserted mode;
a transmission worm gear (401) in the instrument interface assembly (4) is fixedly connected with the top of the opposite transmission pinion (313), a transmission worm wheel (402) is positioned at one side of the transmission worm gear (401), a connection worm wheel (406) is arranged at one side of the connection worm gear (405), the connecting turbine (406) is fixedly arranged at one end of a longitudinal connecting shaft (407), the other end of the longitudinal connecting shaft (407) is fixedly provided with an instrument connecting pipe locking gear (409), the longitudinal connecting shaft (407) is rotatably connected to the longitudinal connecting shaft seat (408), the longitudinal connecting shaft seat (408) is fixedly arranged on the interface mounting position (212), the two sides of the instrument connecting pipe locking gear (409) are respectively provided with an instrument connecting pipe locking rack (410), and the two groups of instrument connecting pipe locking racks (410) are respectively fixedly connected with the instrument connecting pipe locking block (412) through rack connecting blocks (411).
2. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: the spliced pole (105) are big end down's step shape cylindrical structure, with regulation fore-set (202) that spliced pole (105) correspond also are provided with the step axle for pressure spring (203), four groups are adjusted in the joint regulation fore-set (202) respectively with four groups spliced pole (105) are coaxial.
3. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: still fixed mounting has the regulation internal gear (205) on the terminal surface of one side of regulation chassis (204), regulation chassis (204) are used for the installation to adjust and have seted up several sets of draw-in grooves on the terminal surface of internal gear (205), it is provided with the boss with the position that the draw-in groove corresponds on regulation chassis (204) to adjust internal gear (205), protective housing (201) are provided with on the terminal surface of one side of being close to regulation chassis (204) and adjust fixing base (206), the principal plane both sides of adjusting fixing base (206) fixed mounting respectively has adjusting gear shaft (208), and rotary connection has regulation transfer gear (207) on adjusting gear shaft (208) of one side, and rotary connection has regulation auxiliary gear (211) on adjusting gear shaft (208) of opposite side, one side of adjusting transfer gear (207) is provided with adjusts drive gear (209), adjust drive gear (209) with adjust transfer gear (207) and form transmission cooperation, the adjusting transmission gear (207) is in transmission fit with the adjusting inner gear (205), the adjusting driving motor (210) is connected with the adjusting driving gear (209) through a shaft, and the adjusting driving motor (210) is fixedly installed on the main plane of the adjusting fixing seat (206).
4. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: the outer connecting pipe (301) is inserted into an inner hole in the middle of the interface mounting position (212) from inside to outside.
5. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: the external pipe lower pressing block (302) and the external pipe upper pressing block (303) jointly form a round hole-shaped structure, and the external pipe (301) is installed in the round hole structure in an inserted mode.
6. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: compress tightly transmission bull gear axle (308) and be the universal component, one side of compact heap rotating gear (306) is provided with compresses tightly transmission gear wheel (309), compress tightly transmission gear wheel (309) swivelling joint in compressing tightly transmission bull gear axle (308), the subtend compresses tightly transmission gear wheel (310) and is located one side of subtend compact heap rotating gear (307), subtend compresses tightly transmission gear wheel (310) swivelling joint in another group compress tightly transmission bull gear axle (308), one side of compressing tightly transmission gear wheel (309) is provided with compresses tightly drive gear (311), compress tightly driving motor (312) with compress tightly drive gear (311) hub connection, compress tightly driving motor (312) fixed mounting in on the terminal surface at interface installation position (212) top.
7. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: the transmission worm wheel (402) is fixedly arranged at one end of a transverse transmission shaft (403), a connecting worm (405) is fixedly arranged at the other end of the transverse transmission shaft (403), the transverse transmission shaft (403) is rotatably connected to a transverse transmission shaft seat (404), the transverse transmission shaft seat (404) is fixedly arranged on the end face of the top of the interface mounting position (212), and the rotating center of the transverse transmission shaft (403) is perpendicular to the rotating center of the longitudinal connecting shaft (407).
8. The protection device for the metering instrument of the thermal power plant according to claim 1, wherein: the instrument connecting pipe locking gear (409) drives the two groups of instrument connecting pipe locking racks (410) to simultaneously operate, and the operation of the two groups of instrument connecting pipe locking racks (410) is opposite to each other.
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| CN202110407688.5A CN113514089A (en) | 2021-04-15 | 2021-04-15 | Protection device for metering instrument of thermal power plant |
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