CN210003089U - Nuclear power station air brake locking transmission device - Google Patents

Abstract

The utility model relates to a containment isolation system technical field provides nuclear power station air brake locking transmission, including the frame and install pressure balance mechanism and interlocking device on the frame, the assembly jig, and install the locking mechanism on the assembly jig, pressure balance mechanism is including the breather pipe that is used for communicating frame inside and outside both sides air, the balanced valve of setting on the breather pipe, a drive assembly for controlling the balanced valve motion and the input shaft of being connected with the drive assembly transmission, interlocking device includes the transmission shaft, the cover is established at the epaxial cam of transmission, the power shaft, the cover is established at the epaxial ratchet of power, and the swing subassembly, the transmission shaft is connected with the input shaft transmission, locking mechanism is including the second input shaft of connecting input shaft and the bolt subassembly of connecting the second input shaft, through installing pressure balance mechanism and interlocking device in the frame, through installing locking mechanism on the assembly jig, the staff's debugging of being convenient for, labour saving and time.

Description

Nuclear power station air brake locking transmission device

Technical Field

The utility model relates to a nuclear power station containment isolation system technical field especially relates to kinds of nuclear power station air brake locking transmission.

Background

The nuclear power station air lock is used as a component of a reactor containment and has the following functions of keeping radioactive substances not to leak in the containment during the operation of a nuclear power station, limiting radiation leakage from the boundary of a control area, ensuring the safety of personnel access and exit, and ensuring the integrity and the tightness of a safety under an accident condition, the nuclear power station air lock 1 0 generally has two safety 3 oppositely arranged, 2 safety cabin bodies are arranged between two safety 5, the nuclear power station air lock is provided with a pressure balancing mechanism, a locking mechanism and an interlocking mechanism, the pressure balancing mechanism is used for adjusting the air pressure between the safety cabin bodies and the outside of the safety so as to enable the safety to be smoothly opened and closed, the locking mechanism is used for locking or unlocking the safety , and when 4 safety is opened and closed, the interlocking mechanism is used for controlling the other safety to be in an interlocking state, namely, the other safety door cannot be opened.

Pressure balance mechanism, locking mechanism and interlocking device on traditional nuclear power station air brake direct mount are on safe frame, and the spare part among pressure balance mechanism, locking mechanism and the interlocking device is all direct mount on safe frame promptly, and the debugging installation is more loaded down with trivial details, wastes time and energy, and is not convenient for the follow-up maintenance of staff or changes spare part.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide nuclear power plant air lock locking transmission devices aiming at the problems of the current traditional technology.

A locking transmission device for a nuclear power station air lock comprises a frame, a pressure balance mechanism, an interlocking mechanism, an assembly frame and a locking mechanism, wherein the pressure balance mechanism and the interlocking mechanism are installed on the frame, the pressure balance mechanism comprises an air pipe used for communicating air on the inner side and the outer side of a frame, a balance valve arranged on the air pipe, a driving assembly used for controlling the movement of the balance valve and a input shaft in transmission connection with the driving assembly, the interlocking mechanism comprises a transmission shaft, a cam sleeved on the transmission shaft, a power shaft, a ratchet wheel sleeved on the power shaft and a swinging assembly, the transmission shaft is in transmission connection with the input shaft, a end of the swinging assembly is abutted against the peripheral side of the cam, the other end of the swinging assembly is fastened with or separated from the ratchet wheel, and the locking mechanism comprises a second input shaft connected with the input shaft and a bolt assembly connected with the second.

According to the locking transmission device for the air brake of the nuclear power station, the pressure balance mechanism and the interlocking mechanism are arranged on the frame, the frame is arranged on the safety frame, the locking mechanism is arranged on the assembling frame, the assembling frame is arranged on the safety frame, the debugging of workers is facilitated, time and labor are saved, and the maintenance or replacement of parts of the workers is facilitated subsequently.

In embodiments, the device further comprises a indicator in transmission connection with the pressure balancing mechanism and a second indicator in transmission connection with the interlocking mechanism.

In embodiments, the vent pipe comprises a pipe part and a second pipe part, wherein the end of the pipe part is used for communicating the inner air of frames, the end of the second pipe part is used for communicating the outer air of frames, and two ends of the balance valve are respectively connected with the pipe part and the second pipe part.

In embodiments, the balance valve comprises a valve seat with a movable cavity, a valve ball accommodated in the movable cavity, and a rotating block arranged on the outer peripheral wall of the valve seat, wherein two connectors communicated with the movable cavity are arranged on the valve seat, connectors are connected with the other end of the pipe, the other connectors are connected with the other end of the second pipe, a rotating column is arranged on the rotating block, and the end of the rotating column penetrates through the side wall of the valve seat to be connected with the valve ball.

In embodiments, the rotating block is provided with two strip notches and two notches which are perpendicular to each other, the driving assembly comprises a rotating shaft and a rotating arm which is sleeved on the rotating shaft, the rotating shaft is in transmission connection with the input shaft, and the rotating arm can be inserted into the strip notches and can slide in the strip notches.

In embodiments, the driving assembly further comprises a th rotating gear sleeved on the th rotating shaft, a second rotating gear and a third rotating gear, wherein the second rotating gear is meshed with the gear on the th input shaft, and the third rotating gear is meshed with the th rotating gear.

In embodiments, a groove is formed in the peripheral side of the cam, the swing assembly comprises a positioning shaft, a swing claw movably sleeved on the positioning shaft, a second positioning shaft, a pawl movably sleeved on the second positioning shaft, and an intermediate connecting rod connected with the swing claw and the pawl, two ends of the intermediate connecting rod are respectively rotatably connected with ends of the swing claw and the pawl, a rolling bearing is arranged at the other end of the swing claw, when the rolling bearing is located in the groove, the other end of the pawl is separated from the ratchet wheel, and when the rolling bearing rolls out of the groove, the other end of the pawl is tightly buckled on the ratchet wheel.

In embodiments, the interlocking mechanism further comprises a th transmission gear sleeved on the th transmission shaft, a second transmission gear and a third transmission gear, wherein the second transmission gear and the third transmission gear are sleeved on the second transmission shaft, the second transmission gear is meshed with a gear on the th input shaft, and the third transmission gear is meshed with a th transmission gear.

In embodiments, the bolt assembly comprises a gear assembly connected with the second input shaft, two guide blocks respectively arranged at two ends of the gear assembly, and two bolts respectively connected with two ends of the gear assembly, wherein guide holes are formed in the guide blocks, the bolts are respectively arranged corresponding to the guide blocks, and the bolts movably penetrate through the guide holes in the corresponding guide blocks.

In embodiments, the input shaft is provided with a th hand wheel, and the power shaft is provided with a second hand wheel.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a locking actuator for a nuclear power plant air lock ;

FIG. 2 is a schematic diagram of the locking mechanism and interlock mechanism of the nuclear power plant air lock locking actuator of FIG. 1;

FIG. 3 is a schematic diagram of the pressure balance mechanism of the nuclear power plant airlock lock actuator of FIG. 2;

FIG. 4 is a schematic diagram of the pressure balance mechanism portion of the lock actuator of the nuclear power plant air lock of FIG. 3;

FIG. 5 is an A-A axial cross-sectional view of a portion of the pressure balance mechanism of the nuclear power plant air lock lock actuator of FIG. 4;

FIG. 6 is a schematic diagram of the locking mechanism of the nuclear power plant air lock locking actuator of FIG. 1;

FIG. 7 is a schematic illustration of an alternate degree angle of the locking mechanism of the nuclear power plant air lock locking actuator of FIG. 6;

fig. 8 is a left side view of the nuclear power plant airlock lock actuator of fig. 2, with the frame and pressure balance mechanism omitted.

The meaning of the reference symbols in the drawings is:

the frame 12, the mounting frame 13, the inner plate 130, the outer plate 131, the support column 132, the positioning hole 133, the bottom plate 16, the top plate 17, the support leg 18, the connecting hole 19, the pressure balance mechanism 20, the vent pipe 21, the pipe portion 210 of the second gear , the second pipe portion 211, the balance valve 22, the movable cavity 220, the valve seat 221, the valve ball 222, the rotating block 223, the interface 224, the rotating column 225, the through hole 226, the bar-shaped notch 227, the notch 228, the driving assembly 23, the second input shaft 24, the second 0 rotating shaft 25, the second 1 rotating gear 250, the rotating arm 26, the second rotating shaft 27, the second rotating gear 28, the third rotating gear 29, the locking mechanism 30, the second input shaft 31, the bolt assembly 32, the gear assembly 33, the guide block 34, the guide hole 340, the 48 bolt 35, the intermediate shaft 36, the second 2 intermediate gear 360, the second intermediate gear 361, the transition shaft 37, the second transition gear 370, the second transition gear 38, the third transition gear 5964, the third gear 5964, the second gear 5965, the third gear 99, the third gear wheel shaft 3517, the fifth gear 99, the sixth gear 99, the fifth gear 99, the sixth gear, the fifth gear 99, the sixth.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It is noted that when an element is referred to as being "secured to" another elements, it can be directly on the other elements or intervening elements may also be present, that when elements are referred to as being "connected" to another elements, it can be directly connected to another elements or intervening elements may be present.

Referring to fig. 1 to 8, a locking transmission device for a nuclear power plant air lock according to a preferred embodiment of the present invention includes a frame 12, a pressure balance mechanism 20 and an interlocking mechanism 60 installed on the frame 12, a mounting frame 13, and a locking mechanism 30 installed on the mounting frame 13, wherein the frame 12 is detachably installed on a 4 frame of 1 safety 2, the pressure balance mechanism 20 is used for balancing air pressure on the inner side and the outer side of a current 5 frame, the interlocking mechanism 60 is coupled with the pressure balance mechanism 20, the interlocking mechanism 60 is in transmission connection with the pressure balance mechanism or the locking mechanism installed on another 3 0 frame, when the current safety 7 is opened and closed, the interlocking mechanism 60 makes the pressure balance mechanism and the locking mechanism on another safety 6 frame in an interlocking state, that another safety 8 is not openable, the mounting frame 13 and the frame 12 are installed on a frame of the same safety 9 frame, the mounting frame 13 and the frame 12 are respectively located on the two sides of the safety , and the mounting frame is also detachably installed on the current safety door frame for unlocking mechanism.

Referring to fig. 1, the frame 12 includes a bottom plate 16, a top plate 17 spaced from the bottom plate 16, and a plurality of legs 18 connecting the bottom plate 16 and the top plate 17, the bottom plate 16 is provided with a plurality of spaced connection holes 19, the bolts pass through the connection holes 19 of the bottom plate 16 to connect with the safety frame, the frame 12 can be separated from the safety frame by loosening the bolts connecting the bottom plate 16 and the safety frame, so that the pressure balance mechanism 20 and the interlocking mechanism 60 mounted on the frame 12 can be conveniently repaired or replaced, the plurality of legs 18 are spaced along the peripheral edges of the bottom plate 16 and the top plate 17, the end of the leg 18 is fixedly connected with the bottom plate 16, and the leg 18 is fixedly connected with the bottom plate 16 in various ways, for example, the leg 18 is formed by molding the bottom plate 16 or the end of the leg 18 is welded with the bottom plate 16, the other end of the leg 18 is bolted to the top plate 17, and the top plate 17 can be separated from the leg 17 by loosening the bolts connecting the top plate 17 and the leg 18, thereby facilitating the repair or replacement of the pressure.

The assembly frame 13 comprises an inner plate 130, an outer plate 131 arranged opposite to the inner plate 130 at intervals, and a plurality of support columns 132 for connecting the inner plate 130 and the outer plate 131, wherein the inner plate 130 is provided with a plurality of positioning holes 133 arranged at intervals, bolts penetrate through the positioning holes 133 on the inner plate 130 to be connected with frames, the assembly frame 13 can be separated from frames by loosening screws for connecting the inner plate 130 and the inner plate frames, so that the locking mechanism 30 arranged on the assembly frame 13 can be conveniently maintained or replaced, the plurality of support columns 132 are arranged at intervals, the end of each support column 132 is fixedly connected with the inner plate 130, the support columns 132 are fixedly connected with the fixing plate 13 in various ways, for example, the support columns 132 and the inner plate 130 are formed in a molded mode, or the end of each support column 132 is welded with the inner plate 130, the other end of each support column 132 is connected with the outer plate 131 through bolts, the outer plates 131 and the support columns 131 can be separated from the support columns 132.

Referring to fig. 2, the pressure balance mechanism 20 includes an air pipe 21 for communicating air at the inner side and the outer side of the frame, a balance valve 22 disposed on the air pipe 21, a driving assembly 23 for controlling the movement of the balance valve 22, and a th input shaft 24 in transmission connection with the driving assembly 23. when the balance valve 22 opens the air pipe 21, the air at the inner side and the outer side of the frame 10 is communicated through the air pipe 21 to ensure the air pressure balance at the inner side and the outer side of the safety frame, and when the balance valve 22 closes the air pipe 21, the air at the inner side and the outer side of the safety frame is isolated.

Referring to fig. 2 to 5 and , in embodiments, the vent pipe 21 includes a tube 210 and a second tube 211, the end of the tube 210 is used for communicating with the inside air of the 1 frame, in this embodiment, the frame is provided with a through hole penetrating through the inside and outside of the frame, the end of the tube 210 is in butt communication with the through hole, the end of the second tube 211 is used for communicating with the outside air of the frame, in the embodiments, the two ends of the balancing valve 22 are respectively connected with the tube 210 and the second tube 211, specifically, the balancing valve 22 includes a valve seat 221 having a movable cavity 220, a ball 222 accommodated in the movable cavity 220, and a rotating block 223 provided on the outer peripheral wall of the valve seat 221, the two ends of the valve seat 221 are provided with ports 224 communicating with the movable cavity 220, wherein the 589 ports 224 are connected with the end of the tube 210, the 593 ports 224 of the second valve seat 221 are connected with the second ball 224, the second port 226, and the rotating block 224 is provided with the rotating block 224, when the rotating block 224 is vertically staggered, the rotating port 224 and the rotating cylinder 224 is connected with the rotating cylinder 210, the rotating block 224, the rotating cylinder 224, 223 is connected with the rotating cylinder 224, the rotating cylinder 210, the rotating block 223, the rotating cylinder 224, 226, 223, the rotating cylinder 224, and the rotating cylinder 210, 226 is provided with the rotating cylinder 210, 223, the rotating block 224, and the rotating cylinder 210, 226.

The driving assembly 23 comprises an -th rotating shaft 25 and a rotating arm 26 sleeved on the -th rotating shaft 25, wherein two ends of the -th rotating shaft 25 are respectively and movably arranged on the bottom plate 16 and the top plate 17 through a bearing seat, the -th rotating shaft 25 is in transmission connection with the -th input shaft 24, namely, the -th rotating shaft 25 is driven to rotate through the -th input shaft 24, the end of the rotating arm 26 can be inserted into the strip-shaped notch 227 and can slide in the strip-shaped notch 227, and the 26 end of the rotating arm 26 can also be inserted into the notch 228.

It can be understood that in the state of fig. 4, the end of the rotating arm 26 is inserted into the strip-shaped notch 227, the through hole 226 of the valve ball 222 is staggered with the two ports 224, that is, the balance valve 22 is in the state of closing the vent pipe 21, when the input shaft 24 drives the rotating shaft 25 to rotate counterclockwise, the rotating shaft 25 drives the rotating arm 26 to rotate counterclockwise, the rotating arm 26 drives the rotating block 223 to rotate clockwise, the rotating block 223 drives the valve ball 222 to rotate clockwise through the rotating column 225, when the valve ball 222 rotates 90 degrees counterclockwise, the through hole 226 on the valve ball 222 is completely communicated with the two ports 224, that is, the inside and outside sides of the frame are air-communicated, so that the air pressures on the inside and outside sides of the frame are balanced, at this time, the notch 228 rotates to the initial state of the strip-shaped notch 227, and when the rotating arm 26 rotates 360 degrees counterclockwise, the end of.

In embodiments, the driving assembly 23 further includes a th rotating gear 250 sleeved on the th rotating shaft 25, a second rotating shaft 27, and a second rotating gear 28 and a third rotating gear 29 sleeved on the second rotating shaft 27, both ends of the second rotating shaft 27 are movably disposed on the bottom plate 16 and the top plate 17 through bearing seats respectively, the second rotating gear 28 is engaged with the gear on the th input shaft 24, and the third rotating gear 29 is engaged with the th rotating gear 250.

The end of the input shaft 24 is connected with a locking mechanism of the current safety , the other end of the input shaft 24 is provided with a hand wheel 240, and the input shaft 24 is rotated through the hand wheel 240, so that the operation of workers is facilitated.

Referring to fig. 6 and 7, the locking mechanism 30 includes a second input shaft 31 connected to an input shaft 24 and a bolt assembly 32 connected to the second input shaft 31, the input shaft 24 rotates to drive the second input shaft 31 to rotate, and the second input shaft 31 drives the 0 bolt assembly 32 to move, specifically, the 1 bolt assembly 32 includes a gear assembly 33 connected to the second input shaft 31, two guide blocks 34 respectively disposed at two ends of the gear assembly 33, and two bolts 35 respectively connected to two ends of the gear assembly 33, guide holes 340 are disposed on the guide blocks 34, bolts 35 are respectively disposed corresponding to the guide blocks 34, and the bolt 35 movably penetrates through the guide holes 340 on the guide blocks 34, so that the bolt 35 penetrates through the guide holes 340 to lock the safety on the frame, the second input shaft 31 drives the two bolts 35 to move synchronously through the gear assembly 33.

, the gear assembly 33 includes an intermediate shaft 36, a th intermediate gear 360 and a second intermediate gear 361 fitted over the intermediate shaft 36, a transition shaft 37, a th transition gear 370 and a second transition gear 371 fitted over the transition shaft 37, a th linkage shaft 38, a th linkage gear 380 and a second linkage gear 381 fitted over the th linkage shaft 38, a third linkage gear 382 engaged with the second linkage gear 381, a second linkage shaft 39, a swinging rod 390 and a rotating rod 391 fitted over the second linkage shaft 39, and two opposite link rods 392 disposed at intervals, the th intermediate gear 360 engaged with the gear on the second input shaft 31, the second intermediate gear 361 having a diameter smaller than that of the th intermediate gear 360, the second intermediate gear 361 engaged with the th transition gear 370, the second intermediate gear 361 engaged with the th transition gear 370, the th intermediate gear 380 engaged with the second transition gear 371, the th linkage gear 380 engaged with the 8235, the 8235 connected with the third linkage gear 382, the movable bolt 382 engaged with the third linkage gear 382, and the third linkage gear 382 connected with the third linkage gear 382, and the movable bolt 382 connected with the third linkage gear 382, and the third linkage gear 31.

Referring to fig. 8, the interlocking mechanism 60 includes a th transmission shaft 61, a cam 62 sleeved on the transmission shaft 41, a power shaft 63, a ratchet wheel 64 sleeved on the power shaft 63, and a swing assembly 65. two ends of a th transmission shaft 61 are respectively movably inserted on the bottom plate 16 and the top plate 17 through bearing seats, the th transmission shaft 61 is in transmission connection with the th input shaft 24, that is, the th input shaft 24 drives the th transmission shaft 61 to rotate, a groove 620 is provided on the circumferential side of the cam 62, two ends of the power shaft 63 are respectively movably inserted on the bottom plate 16 and the top plate 17 through the bearing seats, a end of the power shaft 63 is connected with a transfer shaft 631, the transfer shaft 631 is located between two pull rods 392, and a end of the transfer shaft 631, which is far away from the power shaft 63, is connected with a pressure balancing mechanism or.

The other end of the power shaft 63 is provided with a second hand wheel 630, the power shaft 63 can operate another safety by rotating the second hand wheel 630, the swinging component 65 is positioned between the cam 62 and the ratchet wheel 64, the end of the swinging component 65 is abutted against the peripheral side of the cam 62, and the other end of the swinging component 65 is fastened with or separated from the ratchet wheel 64.

, the swing assembly 65 comprises a positioning shaft 650, a swing claw 651 movably sleeved on the positioning shaft 650, a second positioning shaft 652, a pawl 653 movably sleeved on the second positioning shaft 652, and an intermediate link 654 connecting the swing claw 651 and the pawl 653, wherein the intermediate link 654 is telescopic, two ends of the intermediate link 654 are respectively rotatably connected with ends of the swing claw 651 and the pawl 653, and a rolling bearing 655 is arranged at the other end of the swing claw 651.

When the rolling bearing 655 is positioned in the groove 620, the other end of the pawl 653 is separated from the ratchet wheel 64, the ratchet wheel 64 can rotate, the locking mechanism and the pressure balance mechanism are in an unlocked state, and the other safety 0 can be opened and closed, when the current safety 2 is opened, namely the 1 th input shaft 24 is rotated, the rolling bearing 655 rolls out of the groove 620, the other end of the pawl 653 is tightly buckled on the ratchet wheel 64, the ratchet wheel 64 cannot rotate, the locking mechanism and the pressure balance mechanism on the frame of the other safety are in an interlocked state, and the opening operation of the other safety cannot be performed, and when the current safety door is completely closed, the rolling bearing 655 rolls into the groove 620, the locking mechanism and the pressure balance mechanism are in an unlocked state, and the opening operation of the other safety doors can be performed.

In embodiments, the interlocking mechanism 60 further comprises a transmission gear 66 sleeved on the transmission shaft 61, a second transmission shaft 67, and a second transmission gear 68 and a third transmission gear 69 sleeved on the second transmission shaft 67, wherein the number of the second transmission gear 68 is less than that of the transmission gear 66, the second transmission gear 68 is meshed with the gear on the input shaft 24, the number of the third transmission gear 69 is less than that of the second transmission gear 68, and the third transmission gear 69 is meshed with the transmission gear 66.

The locking transmission device of the air brake of the nuclear power plant further comprises a indicator 90 in transmission connection with the pressure balancing mechanism 20 and a second indicator 100 in transmission connection with the interlocking mechanism 60, wherein the indicator 90 is used for displaying the bolt locking state of the current safety , and the second indicator 100 is used for displaying safe bolt locking states.

In embodiments, the indicator 90 includes an th indicator gear 91 sleeved on the th transmission shaft 61, a th indicator shaft 92, a second indicator gear 93 sleeved on the th indicator shaft 92, and a th indicator 94 connected to the th indicator shaft 92, the th indicator gear 91 is connected to the second indicator gear 93 through a circular rack, and the th indicator 94 is located on the side of the top plate 17 away from the bottom plate 16. it can be understood that when the th transmission shaft 61 rotates, the th transmission shaft 61 drives the th indicator shaft 92 to rotate through the th indicator gear 91, the circular rack, and the second indicator gear 93, and the th indicator shaft 92 drives the th indicator 94 to rotate to display the th locking state of the locking mechanism on the current safety frame.

In embodiments, the power shaft 63 is sleeved with a first indicating driving gear, the second indicator 100 includes a 0 th wheel shaft 101, a second indicating driving gear 102 and a second 2 indicating rotating gear 103 which are sleeved on the 1 th wheel shaft 101, a second wheel shaft 104, a second indicating rotating gear 105 and a second indicator driving gear which are sleeved on the second wheel shaft 104, a third wheel shaft 106, a second indicator driving gear 107 which is sleeved on the third wheel shaft 106, and a second pointer 108 which is connected with the third wheel shaft 106, the second indicating driving gear is meshed with the second indicating driving gear 102, the second indicating rotating gear 103 is connected with the second indicating rotating gear 104 through a ring rack in a transmission manner, the third indicator driving gear is meshed with the second indicator driving gear 107, so that when the power shaft 63 rotates, the power shaft 63 drives the second wheel shaft 101 to rotate through the second indicating driving gear 102 and the second indicating driving gear 102, the second wheel shaft 101 drives the second indicating rotating gear 104 to rotate through the second indicating rotating gear 103 and the second indicator driving gear 104, the second indicator driving gear 104 drives the second indicator driving gear 104 to rotate through a latch mechanism 8512, the indicating that the third indicator fixing frame is mounted on a side of a bottom plate, and indicating that the third indicator fixing frame 8917 is mounted on a side.

When it is required to open the front , referring to fig. 2, when the input shaft 24 of the second rotates counterclockwise, that is, when the input shaft 24 of the fourth 1 rotates in the direction a, the input shaft 24 of the second 2 rotates counterclockwise, that is, when the input shaft 24 of the second 1 rotates clockwise, the input shaft 24 of the second 2 rotates counterclockwise through the second rotary gear 28, the third rotary gear 29, the rotary shaft and the rotary gear 250 of the third , the rotary arm 26 drives the rotary block 223 to rotate clockwise, the rotary block 223 drives the valve ball 222 to rotate clockwise through the rotary column 225, at the same time, the input shaft 24 of the second drives the cam 62 to rotate counterclockwise through the second transmission gear 68, the second transmission shaft 67, the third transmission gear 69, the transmission gear 66 of the first and the transmission shaft 61 of the first , the intermediate shaft 655 rolls out of the groove 620 under the pushing of the cam 62, thereby driving the swing claw 651 to rotate clockwise, the swing claw 651 drives the pawl 653 to rotate counterclockwise through the intermediate link 653, the pawl 654 to rotate counterclockwise, the ratchet 64, so that the ratchet 64 cannot rotate, that the power shaft 64 cannot rotate, so that the power shaft 6 is in the safety shaft 6860, the safety shaft 200 is in the safety interlock state, when the safety interlock with the safety shaft 200, the safety interlock shaft 56 is opened, the safety interlock shaft 56, the safety interlock shaft 95 is connected to rotate clockwise, the second linkage shaft 95, the safety interlock shaft 382 rotates clockwise, the safety interlock shaft 95, the safety interlock shaft 869, the safety interlock shaft 382 rotates clockwise, the safety interlock shaft 76 b 35, the safety interlock shaft 869, the safety interlock shaft 800, the safety interlock shaft 95, the safety interlock shaft 382 rotates clockwise, the safety interlock shaft 869, the safety interlock shaft 382 rotates clockwise, the safety interlock shaft 866, the safety interlock shaft 76 b 35, the safety interlock shaft 869.

The utility model discloses a nuclear power station air brake locking transmission installs at frame 12 through with pressure balance mechanism 20 and interlocking device 60, and frame 12 installs to safe frame again, through installing locking mechanism 30 on assembly jig 13, installs assembly jig 13 to safe frame again on, the staff's of being convenient for debugging, labour saving and time saving, and follow-up staff's of being convenient for maintenance or change spare part.

The air pressure of the inner side and the outer side of the current safe frame is adjusted by rotating the th input shaft to drive the balance valve to open or close the vent pipe, meanwhile, the th input shaft drives the swing assembly to be fastened with or separated from the ratchet wheel when rotating, the interlocking function of another safe is realized, the th input shaft drives the second input shaft 31 when rotating, the second input shaft 31 drives the bolt assembly 32 to move, namely, a plurality of actions can be completed by controlling the th input shaft, the operation of workers is convenient, the use is convenient, the structure is compact, and the space occupation is saved.

The current bolt locking state of the safety is displayed through the -th indicator 90, and the bolt locking state of another safety locking mechanism is displayed through the second indicator 100, so that workers can know the bolt locking state of the two safety conveniently.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The locking transmission device for the air brake of the nuclear power station is characterized by comprising a frame, a pressure balance mechanism, an interlocking mechanism, an assembly frame and a locking mechanism, wherein the pressure balance mechanism and the interlocking mechanism are arranged on the frame, the locking mechanism is arranged on the assembly frame, the pressure balance mechanism comprises an air pipe used for communicating air on the inner side and the outer side of a frame, a balance valve arranged on the air pipe, a driving assembly used for controlling the movement of the balance valve and a th input shaft in transmission connection with the driving assembly, the interlocking mechanism comprises a transmission shaft, a cam sleeved on the transmission shaft, a power shaft, a ratchet wheel sleeved on the power shaft and a swinging assembly, the transmission shaft is in transmission connection with a th input shaft, the end of the swinging assembly is abutted against the peripheral side of the cam, the other end of the swinging assembly is fastened with or separated from the ratchet wheel, and the locking mechanism comprises a second input shaft connected with the th input shaft.
2. 2. The nuclear power plant air lock locking actuator of claim 1, further comprising a indicator in driving connection with a pressure balancing mechanism and a second indicator in driving connection with an interlock mechanism.
3. 3. The locking transmission device for the air lock of nuclear power plant as claimed in claim 1, wherein the vent pipe comprises a th pipe part and a second pipe part, the end of the th pipe part is used for communicating with the air inside the frame, the end of the second pipe part is used for communicating with the air outside the frame, and the two ends of the balance valve are respectively connected with the th pipe part and the second pipe part.
4. 4. The locking transmission device for the air lock of the nuclear power plant as claimed in claim 3, wherein the balance valve includes a valve seat having a movable cavity, a valve ball received in the movable cavity, and a rotating block disposed on the outer peripheral wall of the valve seat, the valve seat is provided with two ports communicating with the movable cavity, wherein of the ports are connected with the other end of the th tube, another of the ports are connected with the other end of the second tube, the rotating block is provided with a rotating column, and the end of the rotating column penetrates through the side wall of the valve seat to be connected with the valve ball.
5. 5. The locking transmission device for the air lock of the nuclear power plant as claimed in claim 4, wherein the rotation block is provided with two bar-shaped notches and two notches which are perpendicular to each other, the driving assembly comprises a rotation shaft and a rotation arm which is sleeved on the rotation shaft, the rotation shaft is in transmission connection with the input shaft, and the rotation arm can be inserted into the bar-shaped notch and can slide in the bar-shaped notch.
6. 6. The lock gear assembly of the nuclear power plant air lock of claim 5, wherein the driving assembly further comprises a th rotating gear sleeved on the th rotating shaft, a second rotating shaft, and a second rotating gear and a third rotating gear sleeved on the second rotating shaft, the second rotating gear is engaged with a gear on the th input shaft, and the third rotating gear is engaged with a th rotating gear.
7. 7. The locking transmission device of the air brake of the nuclear power plant as claimed in claim 1, wherein a groove is formed on the peripheral side of the cam, the swing assembly comprises a th positioning shaft, a swing claw movably sleeved on the th positioning shaft, a second positioning shaft, a pawl movably sleeved on the second positioning shaft, and a middle connecting rod connecting the swing claw and the pawl, two ends of the middle connecting rod are respectively rotatably connected with ends of the swing claw and the pawl, a rolling bearing is arranged on the other end of the swing claw, when the rolling bearing is located in the groove, the other end of the pawl is separated from the ratchet wheel, and when the rolling bearing rolls out of the groove, the other end of the pawl is tightly buckled on the ratchet wheel.
8. 8. The locking transmission device of the nuclear power plant air lock of claim 7, wherein the interlocking mechanism further comprises a transmission gear sleeved on the transmission shaft, a second transmission shaft, and a second transmission gear and a third transmission gear sleeved on the second transmission shaft, the second transmission gear is engaged with a gear on the input shaft, and the third transmission gear is engaged with a transmission gear.
9. 9. The locking transmission device of the air lock of the nuclear power plant as claimed in claim 1, wherein the bolt assembly includes a gear assembly connected to the second input shaft, two guide blocks respectively disposed at two ends of the gear assembly, and two bolts respectively connected to two ends of the gear assembly, the guide blocks are provided with guide holes, the bolts are respectively disposed corresponding to the guide blocks, and the bolts movably penetrate the guide holes of the corresponding guide blocks.
10. 10. The locking transmission device of the air lock in the nuclear power plant as claimed in claim 1, wherein a th hand wheel is arranged on the th input shaft, and a second hand wheel is arranged on the power shaft.

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