CN202867818U - Quick-opened-door pressure vessel speed reducer with safety interlocking function - Google Patents
Quick-opened-door pressure vessel speed reducer with safety interlocking function Download PDFInfo
- Publication number
- CN202867818U CN202867818U CN 201220487366 CN201220487366U CN202867818U CN 202867818 U CN202867818 U CN 202867818U CN 201220487366 CN201220487366 CN 201220487366 CN 201220487366 U CN201220487366 U CN 201220487366U CN 202867818 U CN202867818 U CN 202867818U
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- speed reducer
- safety pin
- pressure vessel
- door
- safety
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Abstract
The utility model discloses a quick-opened-door pressure vessel speed reducer with a safety interlocking function. A ratchet wheel is mounted on a shaft extension end of the speed reducer, and a microcontroller, a motor driving device and a safety pin are mounted on a speed reducer body. The safety pin moves downwards to be inserted in ratchets of the ratchet wheel, a signal input end of the microcontroller is connected with a pressure signal sensor, a door opening-closing signal sensor and a valve opening-closing signal sensor, wherein the sensors are arranged on a pressure vessel. A control end of the microcontroller is connected with the motor driving device which comprises a motor and a reducer, an oscillating bar and a cam are arranged on a shaft of the reducer, a brake cable is fixed on the oscillating bar, the other end of the brake cable is connected with the safety pin, the brake cable pushes and pulls the safety pin to move up and down when the motor rotates forwards and backwards, and a stroke switch is further mounted beside the cam. According to the quick-opened-door pressure vessel speed reducer with the safety interlocking function, the locking safety pin moves up and down, the interlocking reliability of the up-down moving mode is higher than a horizontal moving mode, and due to the fact that the pin moves up and down and visuality is good, an acousto-optic display alarming function is of no need.
Description
Technical field
The utility model relates to the fast opening type large pressurized vessels such as autoclave.
Background technique
The fast opening type pressure containers such as autoclave are the key giant mechanical and electrical equipments that is widely used in the industries such as chemical industry, light industry, building materials, aviation, medicine, food.Mainly open still door (lid) by speed reducer during this equipment quick operating valve.When the not in place or remaining vapour of closing the door does not drain the generation misoperation, when causing with pressure opening the door, casualty accident often occurs, cause very big loss for country and enterprise.Be the safe handling of guaranteeing autoclave and the operational safety that improves fast opening type pressure container, the 49 regulation of " the safe technology of pressure vessel Supervision Code " that General Administration of Quality Supervision, Inspection and Quarantine o of the People's Republic of China issues: fast opening type pressure container is answered the design safety interlock.
The safety interlocking control gear that is applied at present door-opening pressure vessel mostly is greatly special-purpose autonomous system.Interlock control apparatus mainly is comprised of pressure transducer, position switch, controller, electric actuator and cylindrical safety pin etc., the round-meshed sheet metal of still door (lid) welding at pressurized container, drive cylindrical safety pin level by electric actuator and enter or withdraw from circular hole, realize blocking function.When the steam-cured process of autoclave is finished, after pressure transducer detected container inner pressure and reaches safety pressure, blocking device withdrawed from release automatically, can open still door (lid) by speed reducer.When quick operating valve (lid) close arrive predetermined position and overbottom pressure bleed valve and close after, the blocking device automatic lockout after the suction port valve is opened, can begin the air inlet pressurization.
The main deficiency of present safety interlock system is: controller is installed on control room or the workshop wall, far away apart from kettle detecting switch and final controlling element, need to connect by many long elastic cable papers, installation threading workload is large, expense is high, and autoclave is the large high-temperature high-pressure steaming and cultivating equipment, the work on the spot environment is bad, very easily comes in contact the security incidents such as bad and short circuit; This system needs by still door (lid) welding sheet metal with holes and kettle actuating device is installed, and reduce the safety reliability of pressurized container, but also has the potential faults that safety pin can not reliable and secure discrepancy in the plate hole of still door (lid); In addition, there are the deficiencies such as controller, electric actuator volume are large, weight is heavier in this system.
At present, occurred adopting the axle of magnetic clutch control speed reducer to realize the control program of interlocking, but owing to have the shortcoming that is difficult for unlocking after fault or the outage, so the field is less.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of door-opening pressure vessel speed reducer with safety interlocking function is provided.
Technological scheme is, a kind of door-opening pressure vessel speed reducer with safety interlocking function, and it comprises the speed reducer body; It is characterized in that: the shaft extension end at speed reducer is equipped with ratchet, at the speed reducer body microcontroller, motor drive unit and safety pin moving up and down is installed; Insert in the ratchet of ratchet when safety pin moves down, thereby realize locking; Described microcontroller signal input part is connected with pressure signal sensor, gate switch signal emitter and threshold switch signal emitter on the pressurized container, and control end is connected with motor drive unit; Described motor drive unit comprises motor and retarder, and reducer shaft is provided with fork and cam, fixes a braking string on the fork, and the braking string the other end is connected with safety pin, and braking string push-and-pull safety pin moves up and down during motor positive and inverse; The other position limit switch that control motor positive and inverse and angle of swing size also are installed of cam.
In order to make safety pin be convenient to insert in the ratchet, safety pin is comprised of two-part, and top is a cylinder, the top cylinder is installed in the key seat at ratchet top, the bottom is a conical surface body, and conical surface body is movably connected on the cylinder, after conical surface body exposes below key seat certain pendulum angle is arranged.
Described microcontroller and motor drive unit all adopt trouble free service voltage and are installed in the sealed case of speed reducer body.
Described speed reducer body can shaking type, can also electrodynamic type.
When adopting the electrodynamic type speed reducer, the position limit switch normally opened contact should be sealed in the power circuit that starts motor for speed reducer, when only having safety pin to be pulled up release, make just in time pressing position limit switch of cam, the startup of could switching on of electrodynamic type speed reducer.
Working principle is: when working procedure of pressurized container is finished need to open the door the time, open bleed valve, when container inner pressure is reduced to safety pressure, the pressure signal sensor sends signal, micro controller control electric machine rotation, safety pin is pulled upwardly by steel strand, realizes release, and speed reducer could rotate and open still door (lid) after the release.When quick operating valve (lid) when closing, after only having the predetermined position of arrival and overbottom pressure bleed valve to close, the gate switch signal emitter sends signal, bleed valve threshold switch signal emitter sends signal, micro controller control electric machine rotation, safety pin could be inserted in the ratchet teeth groove under steel strand thrust and Gravitative Loads and realize locking, and air intake valve is opened, and can begin pressurization.
The utility model is with present switch gate speed reducer and safety interlock control system is creationary combines, and becomes the electromechanical integration speed reducer with safety interlocking function.Because this device locking safety pin adopts the mode that moves up and down, its Interlock Reliability is higher than horizontal motion mode, because pin moves up and down and visuality is good, the acoustooptic display alarm function can be set.The utility model is because installation wiring is few, thus compact structure, electromechanical integration, good seal, practical reliable, improved the safety reliability of pressurized container.Microcontroller and motor drive unit have little power consumption, lightweight, Interlock Reliability advantages of higher.
Description of drawings
Fig. 1 is shaking type example structure schematic block diagram;
Fig. 2 is the structural drawing of motor drive unit;
Fig. 3 is the right elevation of Fig. 2 cam.
Marginal data: 1-speed reducer body, 2-microcontroller, 3-motor drive unit, the 4-braking string, 5-cam, 6-ratchet, the 7-motor, 8-retarder, 9-fork, the 10-position limit switch, 11-handle, 12-key seat, the 13-safety pin, a-pressure signal sensor, b-gate switch signal emitter, c-threshold switch signal emitter.
Embodiment
As shown in Figure 1, a kind of door-opening pressure vessel speed reducer with safety interlocking function, it comprises speed reducer body 1; Wherein the shaft extension end at speed reducer body 1 is equipped with ratchet 6, at speed reducer body 1 microcontroller 2, motor drive unit 3 and safety pin moving up and down 13 is installed; Described safety pin 13 is comprised of two-part, top is a cylinder, the top cylinder is installed in the key seat 12 at ratchet top, the bottom is a conical surface body, conical surface body is movably connected on the cylinder, and conical surface body has certain pendulum angle after exposing below key seat 12, and pendulum angle is not more than 10 degree, conical surface body inserted in the ratchet of ratchet 6 when safety pin 13 moved down, thereby realized locking; Described microcontroller 2 signal input parts are connected with threshold switch signal emitter c with pressure signal sensor a, gate switch signal emitter b on the pressurized container, and control end is connected with motor drive unit 3; Described motor drive unit 3 as shown in Figure 2, it comprises motor 7 and retarder 8, and retarder 8 axles are provided with fork 9 and cam 5, fixes a braking string 4 on the fork 9, braking string 4 the other ends are connected with safety pin 13, and steel strand 4 push-and-pull safety pins 13 move up and down during motor 7 clockwise and anticlockwise; The right elevation of Fig. 3 further illustrates the cam 5 other position limit switches 10 that control motor 7 clockwise and anticlockwise and angle of swing size also are installed.In order to guarantee to use safety, described microcontroller 2 all adopts trouble free service voltage with motor drive unit 3 and is installed in the sealed case of speed reducer body 1.
Speed reducer body 1 shown in Figure 1 is shaking type, rotates by handle 11 operation speed reducers.
Speed reducer body 1 can also adopt electrodynamic type, can substitute handle 11 with motor.
When adopting the electrodynamic type speed reducer, position limit switch 10 normally opened contacts should be sealed in the control circuit that starts motor for speed reducer, when only having safety pin to be pulled up release, make just in time pressing position limit switch 10 of cam 5, the startup of could switching on of electrodynamic type speed reducer.
Claims (5)
1. door-opening pressure vessel speed reducer with safety interlocking function, it comprises the speed reducer body; It is characterized in that, at the shaft extension end of speed reducer ratchet is installed, microcontroller, motor drive unit are installed and the safety pin that moves up and down can be arranged at the speed reducer body; Insert in the ratchet of ratchet when safety pin moves down, thereby realize locking; Described microcontroller signal input part is connected with pressure signal sensor, gate switch signal emitter and threshold switch signal emitter on the pressurized container, and control end is connected with motor drive unit; Described motor drive unit comprises motor and retarder, and reducer shaft is provided with fork and cam, fixes a braking string on the fork, and the braking string the other end is connected with safety pin, and braking string push-and-pull safety pin moves up and down during motor positive and inverse; The other position limit switch that control motor positive and inverse and angle of swing size also are installed of cam.
2. door-opening pressure vessel speed reducer as claimed in claim 1, it is characterized in that, described safety pin is comprised of two-part, top is a cylinder, the top cylinder is installed in the key seat at ratchet top, the bottom is a conical surface body, and conical surface body is movably connected on the cylinder, and the pendulum angle that is not more than 10 degree is arranged after conical surface body exposes below key seat.
3. door-opening pressure vessel speed reducer as claimed in claim 1 is characterized in that, described microcontroller and motor drive unit all adopt trouble free service voltage and be installed in the sealed case of speed reducer body.
4. door-opening pressure vessel speed reducer as claimed in claim 1 is characterized in that, described speed reducer body is shaking type.
5. door-opening pressure vessel speed reducer as claimed in claim 1 is characterized in that, described speed reducer body is electrodynamic type, and the position limit switch normally opened contact is sealed in the power circuit that starts motor for speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487366 CN202867818U (en) | 2012-09-15 | 2012-09-15 | Quick-opened-door pressure vessel speed reducer with safety interlocking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487366 CN202867818U (en) | 2012-09-15 | 2012-09-15 | Quick-opened-door pressure vessel speed reducer with safety interlocking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867818U true CN202867818U (en) | 2013-04-10 |
Family
ID=48034540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220487366 Withdrawn - After Issue CN202867818U (en) | 2012-09-15 | 2012-09-15 | Quick-opened-door pressure vessel speed reducer with safety interlocking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878292A (en) * | 2012-09-15 | 2013-01-16 | 山东科技大学 | Quickly opened pressure container speed reducer with safety interlocking function and working method for quickly opened pressure container speed reducer |
| CN106970584A (en) * | 2017-02-28 | 2017-07-21 | 徐州工程学院 | A kind of still kettle safety detection device and method |
-
2012
- 2012-09-15 CN CN 201220487366 patent/CN202867818U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878292A (en) * | 2012-09-15 | 2013-01-16 | 山东科技大学 | Quickly opened pressure container speed reducer with safety interlocking function and working method for quickly opened pressure container speed reducer |
| CN102878292B (en) * | 2012-09-15 | 2015-06-17 | 山东科技大学 | Quickly opened pressure container speed reducer with safety interlocking function and working method for quickly opened pressure container speed reducer |
| CN106970584A (en) * | 2017-02-28 | 2017-07-21 | 徐州工程学院 | A kind of still kettle safety detection device and method |
| CN106970584B (en) * | 2017-02-28 | 2019-06-18 | 徐州工程学院 | A kind of still kettle safety detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |