CN109139125A - Low-pressure turbine air inlet guider - Google Patents

Abstract

The present invention is low-pressure turbine air inlet guider, including low-pressure turbine air inlet guider, including apparatus main body, it is set to the intracorporal transmission device of described device master, it is set to described device main body vane belt device, it is set to the intracorporal tripper of described device master, it is set to the intracorporal airflow guiding device of described device master and is set to the intracorporal spring bearing device of described device master, steam turbine at work can change the demand of air, a large amount of gas is many times required to work, design research and development are done to steam turbine air inlet guiding for low-pressure gas, the invention is related to piece using multiple groups and carries out rotation cutting air generation negative pressure, when pressure starts the mutually opposing rotation of rotatable vane fan impeller not enough to change rotational frequency, increasing reaches negative pressure increasing in slot to steam turbine pressurization the speed of air cutting Purpose, this design drive lead screw to complete to be driven impeller sets using high-speed motor output shaft reduction of speed.

Description

Low-pressure turbine air inlet guider

Technical field

Gas exchanges technical field, specially low-pressure turbine air inlet guider when steam turbine of the present invention works.

Background technique

Steam turbine at work can change the demand of air, many times require a large amount of gas to work, needle Low-pressure gas is oriented to steam turbine air inlet and does design research and development, the invention is related to piece using multiple groups and carries out rotation cutting air generation Negative pressure increases pair when pressure starts the mutually opposing rotation of rotatable vane fan impeller not enough to changing rotational frequency The speed of air cutting makes negative pressure increasing in slot achieve the purpose that be pressurized to steam turbine, this design is dropped using high-speed motor output shaft Speed belt moves lead screw and completes to be driven impeller sets, and efficient work, therefore this hair are realized by simple mechanical transmission structure It is bright it is really necessary to.

Summary of the invention

The purpose of the present invention is to provide low-pressure turbine air inlet guiders, in the prior art above-mentioned scarce for overcoming It falls into.

Low-pressure turbine air inlet guider according to the present invention, including apparatus main body, it is set to the intracorporal biography of described device master Dynamic device is set to described device main body vane belt device, is set to the intracorporal tripper of described device master, is set to institute It states the airflow guiding device in apparatus main body and is set to the intracorporal spring bearing device of described device master, the transmission device Including being set to the intracorporal first motor of described device master, it is installed with the first retarder on the downside of the first motor, described first Motor upper and lower side power is connected with the first output shaft, and first output shaft lower end and first reducer power cooperate Connection, the first retarder downside inner wall is interior to be equipped with the first working chamber, and the lower end power of first retarder is cooperatively connected There is extension to be passed through the first rotating shaft in first working chamber, the lower end of the first rotating shaft is fixedly connected with can be described first The first friction plate rotated in working chamber on the downside of first friction plate and is located at and is equipped with and can match in first working chamber therewith The second friction plate of frictional rotation is closed, is connected in the downside inner wall of first working chamber and is equipped with the first connecting cavity, described second The lower end of friction plate is fixedly connected with the second shaft for extending and being passed through in first connecting cavity, and the lower end of second shaft is logical It crosses bearing to be rotatably assorted on the first sliding block that is connected to and can slide up and down in first connecting cavity, under first connecting cavity Symmetrical first hydraulic cylinder is fixedly connected on the inner wall of side, the upper end power of the first hydraulic cylinder is connected with and institute State the telescopic rod that the first sliding block lower end is fixedly connected, the left and right sides of the first motor is symmetrical and is fixedly installed and described the The pressure gauge that one hydraulic cylinder is connected by polygon control survey is provided with drive cavity in described device lower body, the drive cavity Upper inside walls are rotatably assorted by bearing is connected with the third shaft that upper end extends into first connecting cavity, and the third turns Axis upper end is installed with the first groove of opening upwards, and the lower end of second shaft is fixedly connected to be equipped with and is rotatably assorted by bearing Splined shaft and lower end extend and be passed through first groove and can slide up and down spline fitted connection in the first groove, described the The lower end of three shafts is fixedly connected equipped with first bevel gear, is equipped in the drive cavity and is rotatably assorted the first of connection by bearing Lead screw is fixedly connected with the second bevel gear engaged with the first bevel gear on first lead screw.

Further technical solution, Open Side Down including being set to the drive cavity upper inside walls for the drive blade device And symmetrical second groove, the upside connection of second groove on right side is equipped with the third groove of opening to the left, described The second sliding block that connection upper end extends through the second groove and can horizontally slip, second sliding block are threadedly engaged on first lead screw Upper end extend and be passed through in the third groove and be fixedly connected equipped with third sliding block, fixed setting in the third upper end of slide block There is the second motor, the upper end of second motor, which is connected by power, is provided with the second output shaft, the upper inside walls of the third groove It is provided with the T shape sliding slot that Open Side Down, the third sliding block that can be horizontally slipped, the third sliding block are provided in the T shape sliding slot Lower end be rotatably assorted and connect by bearing with the upper end of second output shaft, being fixedly connected on second output shaft can It is the 4th recessed to be provided with and communicated with opening upwards for the first bevel gear set rotated in the third groove, the third slot opening Slot, the upper end extension of first output shaft are passed through interior and upper end and are fixedly connected with the first blade wheel, first blade wheel It downside adjacent position and is fixedly connected on first output shaft and is equipped with the oppositely oriented with the first blade wheel of the rotation The downside of two blade wheels, second blade wheel is adjacent and is rotatably assorted and is connected with by bearing on first output shaft First blade wheel group, the first blade wheel group intra vane wheel adjacent position blade is oppositely oriented and blade wheel edge is fixedly connected Second helical gear equipped with the second helical gear that can be engaged with first bevel gear set, on first output shaft Lower position is equipped with to be rotatably assorted the second blade wheel group of connection by bearing, the rotation direction of the second blade wheel group intra vane wheel It is corresponding identical as the first blade wheel group intra vane wheel rotation direction, it is equipped with positioned at the leftward position of the lead screw right with the lead screw The identical mechanism of gear set transfer mode of the side and helical gear being fixedly connected with the second blade wheel group edge is engageable matches Close transmission.

Further technical solution, the tripper include being located in the 4th groove shell to correspond to the helical gear Group position is equipped with and opening opposite fiveth groove symmetrical above and below along the 4th groove shell, in the upside of the 5th groove It is fixedly connected with first back-moving spring in wall, slidably Four-slider and upper end is equipped in the 5th groove and is fixedly connected with described the One reset spring, the upper end of the Four-slider are fixedly connected equipped with first lead, and the other end of the first lead is by leading String holes is fixedly connected with the third sliding block, it is described be located at the corresponding bracing wire of the 4th groove shell inner underside be fixedly connected it is described Second sliding block.

Further technical solution, the airflow guiding device are fixed including being set to inner wall on rear side of the 4th groove There is airflow line, the other end of the airflow line is fixedly connected with steam turbine, and the setting of the airflow guiding device can be by the 4th High pressure gas guiding steam turbine in groove completes pressure balance in groove.

The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, first motor drives the when the device is operated The rotation of one output shaft, the first impeller and the second oppositely oriented impeller that the rotation of the first output shaft drives upper end to be fixedly connected turn Dynamic, air is generated negative pressure by blade cuts to make extraneous air enter the 4th groove, when air contacts in the 4th groove The connected hydraulic starting of conducting wire will be in the first connecting cavity when the pressure of two sides reaches certain value when pressure gauge in the 4th groove First sliding block pushes up, and the sliding block pushed up drives the second shaft to move up, and mobile shaft will be fixed on upper end Second friction plate moves upwards the first friction plate that contact top is fixedly connected on first rotating shaft lower end, and first rotating shaft is in retarder Under the action of spin down to make two friction plates complete docking transmission power, when the second shaft rotation when drive be fixed on second Splined shaft rotation below shaft, splined shaft drive the third shaft rotation being attached thereto, and the rotation of third shaft drives lower section solid Surely the first bevel gear rotation connected, first bevel gear and second bevel gear engagement rotation rotate the first lead screw, the first lead screw The second sliding block that bilateral symmetry is threadedly coupled by rotation is mobile to center, and the mobile sliding block drive in center is fixed on the second sliding block The third sliding block at end is slided to center, and second connected to upper the second fixed motor of third sliding block drive of center movement is defeated Axial centre is mobile out, and the connector mobile to center drives the lead being fixedly connected on it, and lead pulls in center housing The sliding separation of two pieces of sliding blocks the 4th groove is connected to third groove, be fixed on bevel gear set on the second output shaft therewith to Center movement engages light-emitting window, starts the second motor at this time, and meshed gears band movable vane piece is rotated and turned to the first impeller On the contrary, completing the introducing to low-pressure gas.

Detailed description of the invention

Fig. 1 is overall structure diagram inside low-pressure turbine air inlet guider of the invention；

Fig. 2 is the cross-sectional view of " A-A " in Fig. 1；

Fig. 3 is the enlarged diagram of " B " in Fig. 1；

Fig. 4 is the enlarged diagram of " C " in Fig. 1.

Specific embodiment

Below with reference to Fig. 1-4, the present invention is described in detail, for sake of convenience, now such as to hereafter described orientation regulation Under: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.

Referring to Fig.1-4, the low-pressure turbine air inlet guider of embodiment according to the present invention, including apparatus main body 10, set The transmission device that is placed in described device main body 10 is set to 10 vane belt device of described device main body, is set to the dress It sets the tripper in main body 10, the airflow guiding device being set in described device main body 10 and is set to described device master Spring bearing device in body 10, the transmission device includes the first motor 11 being set in described device main body 10, described The first retarder 13 is installed on the downside of first motor 11, the 11 upper and lower side power of first motor is connected with the first output shaft 12,12 lower end of the first output shaft and 13 power of the first retarder are cooperatively connected, in 13 downside of the first retarder The first working chamber 14 is equipped in wall, the lower end power of first retarder 13 is connected with extension and is passed through first work First rotating shaft 15 in chamber 14, the lower end of the first rotating shaft 15 are fixedly connected with and can rotate in first working chamber 14 First friction plate 16, first friction plate, 16 downside and being located in first working chamber 14 be equipped with can matched friction turn The second dynamic friction plate 18, the interior connection of the downside inner wall of first working chamber 14 are equipped with the first connecting cavity 17, and described second rubs The lower end of pad 18 is fixedly connected with the second shaft 19 for extending and being passed through in first connecting cavity 17, second shaft 19 Lower end is rotatably assorted on the first sliding block 21 that is connected to and can slide up and down in first connecting cavity 17 by bearing, and described Symmetrical first hydraulic cylinder 22 is fixedly connected on one connecting cavity, 17 downside inner wall, the upper end of the first hydraulic cylinder 22 is dynamic Force-fitting is connected with the telescopic rod 60 being fixedly connected with 21 lower end of the first sliding block, and the left and right sides of the first motor 11 is right Claim and be fixedly installed the pressure gauge 23 connecting with the first hydraulic cylinder 22 by polygon control survey, 10 lower end of described device main body Inside it is provided with drive cavity 26, the upper inside walls of the drive cavity 26 are rotatably assorted by bearing to be connected with upper end and extend into described Third shaft 24 in one connecting cavity 17,24 upper end of third shaft are installed with the first groove 25 of opening upwards, and described The lower end of two shafts 19, which is fixedly connected, is equipped with the splined shaft 20 that is rotatably assorted by bearing and lower end extends that be passed through described first recessed Slot 25 can simultaneously slide up and down spline fitted connection in the first groove 25, and the lower end of the third shaft 24 is fixedly connected equipped with the One bevel gear 27 is equipped in the drive cavity 26 and is rotatably assorted the first lead screw 28 of connection by bearing, first lead screw 28 On be fixedly connected with the second bevel gear 29 engaged with the first bevel gear 27.

Valuably or illustratively, the drive blade device include be set to 26 upper inside walls of drive cavity be open to The upside connection of lower and symmetrical second groove 32, second groove 32 on right side is equipped with the third groove of opening to the left 33, the second sliding block that connection upper end extends through the second groove 32 and can horizontally slip is threadedly engaged on first lead screw 28 31, the upper end of second sliding block 31, which extends, to be passed through in the third groove 33 and is fixedly connected equipped with third sliding block 34, described It is fixedly installed the second motor 35 in 34 upper end of third sliding block, the upper end of second motor 35 is connected by power that be provided with second defeated Shaft 36, the upper inside walls of the third groove 33 are provided with the T shape sliding slot 61 that Open Side Down, setting in the T shape sliding slot 61 There is the third sliding block 37 that can be horizontally slipped, the lower end of the third sliding block 37 and the upper end of second output shaft 36 pass through bearing Be rotatably assorted connection, and the first helical gear that can be rotated in the third groove 33 is fixedly connected on second output shaft 36 Group 38,33 open communication of third groove is provided with the 4th groove 39 of opening upwards, the upper end of first output shaft 12 Extension is passed through in 39 and upper end is fixedly connected with the first blade wheel 40, the downside adjacent position of first blade wheel 40 and in institute It states to be fixedly connected on the first output shaft 12 and is equipped with second blade wheel 45 oppositely oriented with the first blade wheel 40 of the rotation, it is described The downside of second blade wheel 45 is adjacent and is rotatably assorted on first output shaft 12 by bearing and is connected with the first blade Wheel group 41, the 41 intra vane wheel adjacent position blade of the first blade wheel group is oppositely oriented and blade wheel edge is fixedly connected and is equipped with The second helical gear 42 that can be engaged with first bevel gear set 38, second helical teeth on first output shaft 12 It takes turns 42 lower positions and is equipped with and be rotatably assorted the second blade wheel group 43 of connection by bearing, 43 intra vane of the second blade wheel group The rotation direction of wheel and the 41 intra vane wheel rotation direction of the first blade wheel group are corresponding identical, and the leftward position positioned at the lead screw 28 is equipped with With the identical mechanism of gear set transfer mode on 28 right side of the lead screw and be fixedly connected with 43 edge of the second blade wheel group Helical gear engageable cooperation transmission.

Valuably or illustratively, the tripper includes being located in 39 shell of the 4th groove to correspond to the helical teeth Wheel group position is equipped with the 5th groove 44 symmetrical above and below along 39 shell of the 4th groove and that opening is opposite, the 5th groove 44 Upper inside walls in be fixedly connected with first back-moving spring 46, be equipped with slidably Four-slider 47 and upper end in the 5th groove 44 It is fixedly connected with the first back-moving spring 46, the upper end of the Four-slider 47 is fixedly connected equipped with first lead 48, and described The other end of one lead 48 is fixedly connected with the third sliding block 37 by wire guide, described to be located in 39 shell of the 4th groove The corresponding bracing wire in downside is fixedly connected with second sliding block 31.

Valuably or illustratively, the airflow guiding device includes being set to the 39 rear side inner wall of the 4th groove to consolidate Equipped with airflow line 49, the other end of the airflow line 49 is fixedly connected with steam turbine 50, the setting of the airflow guiding device High pressure gas in 4th groove 39 can be oriented to steam turbine and complete pressure balance in groove.

Valuably or illustratively, the spring bearing device includes the Supporting cover being set on the 4th groove 39 63,63 left and right ends are symmetrically arranged with threaded hole 65, are cooperatively connected in the threaded hole and are equipped with the mating connection of bolt 64, institute Stating spring bearing device can make the rotation of the first output shaft more steady, be bolted can make to dismantle it is more convenient.

First motor 13 drives the rotation of the first output shaft 12 when the device is operated, and the rotation of the first output shaft 12 drives upper end solid Surely the first impeller 40 and oppositely oriented the second impeller 45 rotation, air connected is generated in the 4th groove 39 by blade cuts Negative pressure is to make extraneous air enter the 4th groove 39, the pressure of two sides when air contacts the pressure gauge 23 in the 4th groove 39 Hydraulic 22 starting that conducting wire is connected when power reaches certain value pushes up the first sliding block 21 in the first connecting cavity, pushes up Sliding block drive the second shaft 19 move up, mobile shaft moves upwards the second friction plate for being fixed on upper end in contact Side is fixedly connected on the first friction plate 16 of first rotating shaft lower end, first rotating shaft under the action of retarder spin down to make Two friction plates complete docking transmission power, and the splined shaft 20 for being fixed on 19 lower section of the second shaft is driven when the rotation of the second shaft 19 Rotation, splined shaft 20 drive the third shaft 24 that is attached thereto to rotate, the rotation of third shaft 24 drive that lower section is fixedly connected the The rotation of one bevel gear 27, first bevel gear 27 rotate the first lead screw 28 with 29 engagement rotation of second bevel gear, the first lead screw 28 The second sliding block 31 that bilateral symmetry is threadedly coupled by rotation is mobile to center, and the mobile sliding block drive in center is fixed on the second sliding block The third sliding block 34 of 31 upper ends is slided to center, and the third sliding block 34 mobile to center drives upper the second fixed motor 35 to connect The second output shaft 36 connect is mobile to center, and the connector mobile to center drives the lead 48 being fixedly connected on it, lead 4th groove 39 is connected to by the intracorporal two pieces of sliding blocks 47 sliding separation of 48 pulling center, 39 shell with third groove 33, is fixed on second Bevel gear set 38 on output shaft 36 therewith engages light-emitting window 41 to center movement, starts the second motor 35 at this time, engagement Gear band movable vane piece is rotated and is turned to the first impeller 40 on the contrary, completing the introducing to low-pressure gas.

The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, first motor drives the when the device is operated The rotation of one output shaft, the first impeller and the second oppositely oriented impeller that the rotation of the first output shaft drives upper end to be fixedly connected turn Dynamic, air is generated negative pressure by blade cuts to make extraneous air enter the 4th groove, when air contacts in the 4th groove The connected hydraulic starting of conducting wire will be in the first connecting cavity when the pressure of two sides reaches certain value when pressure gauge in the 4th groove First sliding block pushes up, and the sliding block pushed up drives the second shaft to move up, and mobile shaft will be fixed on upper end Second friction plate moves upwards the first friction plate that contact top is fixedly connected on first rotating shaft lower end, and first rotating shaft is in retarder Under the action of spin down to make two friction plates complete docking transmission power, when the second shaft rotation when drive be fixed on second Splined shaft rotation below shaft, splined shaft drive the third shaft rotation being attached thereto, and the rotation of third shaft drives lower section solid Surely the first bevel gear rotation connected, first bevel gear and second bevel gear engagement rotation rotate the first lead screw, the first lead screw The second sliding block that bilateral symmetry is threadedly coupled by rotation is mobile to center, and the mobile sliding block drive in center is fixed on the second sliding block The third sliding block at end is slided to center, and second connected to upper the second fixed motor of third sliding block drive of center movement is defeated Axial centre is mobile out, and the connector mobile to center drives the lead being fixedly connected on it, and lead pulls in center housing The sliding separation of two pieces of sliding blocks the 4th groove is connected to third groove, be fixed on bevel gear set on the second output shaft therewith to Center movement engages light-emitting window, starts the second motor at this time, and meshed gears band movable vane piece is rotated and turned to the first impeller On the contrary, completing the introducing to low-pressure gas.

Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention It is subject to claims appended hereto.

Claims (4)

1. low-pressure turbine air inlet guider, including apparatus main body, it is set to the intracorporal transmission device of described device master, is set to Described device main body vane belt device is set to the intracorporal tripper of described device master, is set in described device main body Airflow guiding device and be set to the intracorporal spring bearing device of described device master, the transmission device include be set to institute The first motor in apparatus main body is stated, the first retarder is installed on the downside of the first motor, the first motor upper and lower side is dynamic Force-fitting is connected with the first output shaft, and first output shaft lower end and first reducer power are cooperatively connected, and described the The first working chamber is equipped on the downside of one speed reducer in inner wall, the lower end power of first retarder is connected with extension and is passed through institute The first rotating shaft in the first working chamber is stated, the lower end of the first rotating shaft, which is fixedly connected with, to be rotated in first working chamber The first friction plate, on the downside of first friction plate and be located at that be equipped in first working chamber can matched frictional rotation Second friction plate, the interior connection of the downside inner wall of first working chamber are equipped with the first connecting cavity, the lower end of second friction plate It is fixedly connected with the second shaft for extending and being passed through in first connecting cavity, the lower end of second shaft is matched by bearing rotation Conjunction is connected on the first sliding block that can be slided up and down in first connecting cavity, fixed on inner wall on the downside of first connecting cavity Be connected with symmetrical first hydraulic cylinder, the upper end power of the first hydraulic cylinder be connected with under first sliding block Hold the telescopic rod that is fixedly connected, the left and right sides of the first motor is symmetrical and is fixedly installed and passes through with the first hydraulic cylinder The pressure gauge of polygon control survey connection, is provided with drive cavity in described device lower body, the upper inside walls of the drive cavity pass through Bearing, which is rotatably assorted, is connected with the third shaft that upper end extends into first connecting cavity, and third shaft upper end is installed with First groove of opening upwards, the lower end of second shaft be fixedly connected be equipped with the splined shaft being rotatably assorted by bearing and under End, which extends, to be passed through first groove and can slide up and down spline fitted connection, the lower end of the third shaft in the first groove It is fixedly connected and is equipped with first bevel gear, be equipped in the drive cavity and be rotatably assorted the first lead screw of connection by bearing, described the The second bevel gear engaged with the first bevel gear is fixedly connected on one lead screw.

2. low-pressure turbine air inlet guider according to claim 1, it is characterised in that: the drive blade device includes Being set to the drive cavity upper inside walls, Open Side Down and symmetrical second groove, the upside of second groove on right side Connection is equipped with opening third groove to the left, and connection upper end is threadedly engaged on first lead screw and extends through the second groove and can The second sliding block to horizontally slip, the upper end of second sliding block, which extends, to be passed through in the third groove and is fixedly connected equipped with third Sliding block is fixedly installed the second motor in the third upper end of slide block, and the upper end of second motor, which is connected by power, is provided with Two output shafts, the upper inside walls of the third groove are provided with the T shape sliding slot that Open Side Down, and being provided in the T shape sliding slot can The third sliding block to horizontally slip, the upper end of the lower end of the third sliding block and second output shaft are rotatably assorted company by bearing It connects, the first bevel gear set that can be rotated in the third groove is fixedly connected on second output shaft, the third is recessed Channel opening is provided with and communicated with the 4th groove of opening upwards, and the upper end of first output shaft, which extends, is passed through the fixed company in interior and upper end Be connected to the first blade wheel, the downside adjacent position of first blade wheel and being fixedly connected on first output shaft be equipped with The second oppositely oriented blade wheel of the first blade wheel of the rotation, the downside of second blade wheel are adjacent and defeated described first It is rotatably assorted on shaft by bearing and is connected with the first blade wheel group, the first blade wheel group intra vane wheel adjacent position leaf Piece is oppositely oriented and blade wheel edge is fixedly connected with the second helical gear that is equipped with and can engage with first bevel gear set, is located at institute It states the second helical gear lower position on the first output shaft and is equipped with and be rotatably assorted the second blade wheel group of connection by bearing, The rotation direction of the second blade wheel group intra vane wheel and the first blade wheel group intra vane wheel rotation direction are corresponding identical, are located at described The leftward position of lead screw be equipped with mechanism identical with the gear set transfer mode on the right side of the lead screw and with second blade wheel The engageable cooperation transmission of the helical gear that group edge is fixedly connected.

3. low-pressure turbine air inlet guider according to claim 1, it is characterised in that: the tripper includes being located at The bevel gear set position is corresponded in the 4th groove shell is equipped with and opening phase symmetrical above and below along the 4th groove shell Pair the 5th groove, be fixedly connected with first back-moving spring in the upper inside walls of the 5th groove, be equipped in the 5th groove Slidably Four-slider and upper end are fixedly connected with the first back-moving spring, and the upper end of the Four-slider is fixedly connected equipped with The other end of one lead, the first lead is fixedly connected with the third sliding block by wire guide, described recessed positioned at the described 4th The corresponding bracing wire of slot shell inner underside is fixedly connected with second sliding block.

4. low-pressure turbine air inlet guider according to claim 1, it is characterised in that: the airflow guiding device packet It includes and is set to inner wall on rear side of the 4th groove and is installed with airflow line, the other end of the airflow line is fixedly connected with steamer High pressure gas in 4th groove can be oriented to pressure in steam turbine completion groove and put down by machine, the setting of the airflow guiding device Weighing apparatus.