CN201802268U

CN201802268U - Radiation protection door

Info

Publication number: CN201802268U
Application number: CN2010205440698U
Authority: CN
Inventors: 高名洛
Original assignee: TIANJIN WANMU RADIATION PROTECTIVE ENGINEERING Co Ltd
Current assignee: TIANJIN WANMU RADIATION PROTECTIVE ENGINEERING Co Ltd
Priority date: 2010-09-27
Filing date: 2010-09-27
Publication date: 2011-04-20
Anticipated expiration: 2020-09-27

Abstract

The utility model relates to a radiation protection door which comprises a basal body with a door hole on the basal body, a door body and an electrical control box, wherein a main beam is mounted on the basal body above the door hole, a lead screw driven by a motor is arranged in the main beam by penetration, a plurality of groups of fleeting tackles are suspended at the lower end of a screw nut meshed on the lead screw, rolling wheels mounted at the upper ends of each group of the fleeting tackles are arranged on the surface of a horizontal guide rail arranged on the main beam by sliding compression joint, and the lower ends of each group of the fleeting tackles are respectively connected with the upper end part of the door body. The radiation protection door is simple in structure and can realize smooth and precision operation of the door body through the lead screw and the fleeting tackles, and the opening or the closing of the door body can be realized by a control motor of a frequency converter, thereby having high level of automation, safety and reliability; furthermore, barium sulfate concrete is filled in the door body, so that the radiation protection effect is good.

Description

The radiation protection door

Technical field

The utility model belongs to the radiological defense technical field, especially a kind of radiation protection door.

Background technology

Radioactive substance has been applied in every field widely since finding, as medical science, the energy or military project etc., the radioactive substance transportation, all to carry out whole protection when producing or storing, not only body of wall is wanted to prevent radiation leakage, and door body fluid will properly protect, protective door structure such as certain military enterprise is: comprise the matrix that is made of concrete wall or granite massif, the door body, drive unit and electric control box, be shaped on the door opening that is used to pass in and out on the matrix, on the matrix above the door opening, girder is installed, thicken the door body by the guide rail lifting on the girder, thickening door body is driven by drive unit, drive unit can be the kind of drive of motor and gear train, it also can be the kind of drive of motor and chain, wherein the combination kind of drive of motor and gear train is more steady, speed is very fast, but because the weight of thickening door body is at tens tons the order of magnitude, so requiring each gear in the gear train makes by the material of special hardness, also want regular inspection in use, maintenance is to avoid damaging the operation troubles that causes because of gear, and the noise during gear drive is very big, add work gear simultaneously and need special installation and material, certainly will increase the cost of production of gear train, add large user's use cost; The manufacturing and the installation accuracy of each parts in the kind of drive of motor and chain combination require lower, center to center distance is bigger, whole drive mechanism is simple, instantaneous chain speed and instantaneous transmission ratio are not constants, but transmission stability is relatively poor, especially when stopping in emergency, chain drive is in time to brake, and easily causes the accident.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides simple in structure and can steadily accurately move and have the radiation protection door of explosion prevention function.

The technical scheme that the utility model is taked is:

A kind of radiation protection door, comprise the matrix, door body and the electric control box that are shaped on door opening on it, on the matrix above the door opening, girder is installed, it is characterized in that: in girder, install one by motor-driven leading screw, the many groups of the screw lower end lifting fleeting tackle that meshes on the leading screw, the roller that every group of fleeting tackle upper end is adorned slides and is crimped on the surface of the horizontal guide rail that girder adorns, and the lower end of every group of fleeting tackle all connects the upper end of a body.

And, the lower end of the screw of adorning installs a plate on the described leading screw, this junction plate bottom surface installs many group fleeting tackles at interval, every group of fleeting tackle is made up of two fleeting tackles that are symmetricly set on the leading screw both sides, the girder bottom surface symmetry of leading screw both sides is fixed with and the homonymy fleeting tackle vertical suspension bracket of contraposition mutually, all make and the homoaxial horizontal guide rail of leading screw in each vertical suspension bracket bottom, the syndeton of this horizontal guide rail and homonymy fleeting tackle is: crimping one roller that slides respectively on the horizontal guide rail surface that is positioned at vertical suspension bracket both sides, these two roller symmetries are installed in the upper end of fleeting tackle.

And described girder is installed in the bottom surface of the outrigger of adorning on the matrix.

And the bottom surface of described each horizontal guide rail all is fixed with triangle ruggedized construction.

And the lower end of described fleeting tackle with the syndeton of door body is: uniform a plurality of bending fixture blocks, the riser that setting-in fleeting tackle lower end is adorned in these a plurality of bending fixture blocks of installing in door body upper end.

And the end that described leading screw stretches out girder connects motor by gear, this gear hand chain wheel that also is connected with a joggle.

And the left end of described girder and right-hand member are installed the one stroke switch respectively, and the output of these two travel switches connects the frequency converter in the electric control box, and this frequency converter also connects the infrared optic-electric detects technique on the matrix of right side after motor and the body closure.

Advantage of the present utility model and good effect are:

1. leading screw and screw cooperatively interact in this protective door, by the leading screw rotation screw is moved along leading screw outer rim screw thread, driving the door body by many groups fleeting tackle thus moves, overall operation is steady, the positioning accuracy height, and, when brake, can realize suddenly stopping safety very because screw mandrel becomes the screw linear running with rotation.

2. not only realized moving of a body in this protective door, and also played the effect of supporting, and fleeting tackle has also played steady, the smooth-going effect of sliding of a running body that makes at the fleeting tackle of door body upper end installation by screw.

3. the girder in this protective door is packed on the beam column on the matrix, and its upper end is packed in the outrigger bottom that is inlaid in the matrix, overall fixed stable, safety, long service life.

4. the bottom surface of each horizontal guide rail in this protective door all is fixed with triangle ruggedized construction, by this triangle ruggedized construction the mechanical strength of horizontal guide rail is strengthened, and the support force of opposite house body is stronger, reduces the strength that screw bore, longer service life.

5. organize the fleeting tackles lower end all is installed on a body by the bending fixture block upper end in this protective door more, this structure makes a body have explosion-proof ability, when heavy explosion appears in workshop or inside, warehouse, when the impact force that the door body is subjected to is excessive, door is known from experience disengagement bending fixture block and is freely dropped on the ground, not only absorb the energy that a part of blast produces, and the dangerous situation that a fragmentation body flies out can not occur.

6. screw mandrel stretches out the gears engaged of the end of girder installing and connects a hand chain wheel in this protective door, and when motor broke down or have a power failure, the staff can connect this hand chain wheel to beat opening door body by assembly pulley, and portion's influence is worked normally.

7. an infrared optic-electric detects technique is installed on the right side beam column after the door body closure in this protective door, when the door body is closing in the closed procedure, if someone, obstruction such as thing by the time, the exportable signal of this infrared optic-electric detects technique makes the anxious safety of stopping with guarantor, thing of a body.

8. the utility model is simple in structure, by leading screw and fleeting tackle realized the door body steadily, accurate operation, the unlatching of door body or close by the Frequency Converter Control motor and realize, the automatization level height, safe and reliable, and the barium sulfate concrete of filling in the door body, radiation proof is effective.

Description of drawings

Fig. 1 is the structural representation that the utility model door body is closed.

Fig. 2 is the structural representation that the utility model door body is opened.

Fig. 3 is the syndeton schematic diagram of leading screw and fleeting tackle.

Fig. 4 be along lead screw shaft to leading screw and the syndeton schematic diagram of fleeting tackle.

Fig. 5 is the circuit theory diagrams of electric control box.

The specific embodiment

Below in conjunction with embodiment, the utility model is further specified, following embodiment is illustrative, is not determinate, can not limit protection domain of the present utility model with following embodiment.

A kind of radiation protection door, as Fig. 1～5, comprise the matrix 1 that is shaped on door opening 14 on it, door body 6 and electric control box 7, matrix is positioned at ground more than 13, it can be the building that concrete constitutes, it also can be the massif that granite constitutes, do not influence in the door opening both sides on the correct position of a running body and make two beam columns 11, two beam column upper ends girder 4 is installed, innovation of the present utility model is: install one by the leading screw 16 that is packed in motor 10 drivings on the matrix by suspension rod 15 in girder, the many groups of the screw 19 lower ends lifting fleeting tackle 5 that meshes on the leading screw, the roller 22 that every group of fleeting tackle upper end is adorned slides and is crimped on the surface of the horizontal guide rail 20 that girder adorns, and the lower end of every group of fleeting tackle all connects the upper end of a body.Leading screw and screw cooperatively interact, and by the leading screw rotation screw are moved along leading screw outer rim screw thread, and overall operation is steady, the positioning accuracy height, and because screw mandrel becomes the screw linear running with rotation, when brake, can realize suddenly stopping safety very.

In the present embodiment, the lower end of the screw of adorning installs a plate 18 on the leading screw, this junction plate bottom surface installs four groups of fleeting tackles along the leading screw axially spaced-apart, every group of fleeting tackle is made up of two fleeting tackles that are symmetricly set on the leading screw both sides, the girder bottom surface symmetry of leading screw both sides is fixed with and the homonymy fleeting tackle vertical suspension bracket 21 of contraposition mutually, all make and the homoaxial horizontal guide rail of leading screw in each vertical suspension bracket bottom, the syndeton of this horizontal guide rail and homonymy fleeting tackle is: crimping one roller that slides respectively on the horizontal guide rail surface that is positioned at vertical suspension bracket both sides, these two roller symmetries are installed in the upper end of fleeting tackle.Fleeting tackle has played the effect of supporting, also make running body steadily, slide smooth-going.

Because the door body is generally at tens tons the order of magnitude, count the weight of leading screw and fleeting tackle again in, overall weight is very big, in order to guarantee the steadiness of structure, the upper surface of girder is packed in a bottom surface that is inlaid in the outrigger 2 in the matrix, by two beam columns on the matrix and outrigger, more firm, safety that girder is installed.

The horizontal guide rail that vertical suspension bracket bottom is installed can't be made thicker thickness, so in order to guarantee the mechanical strength of horizontal guide rail, bottom surface at each horizontal guide rail all is fixed with triangle ruggedized construction 23, this triangle ruggedized construction has not only strengthened the mechanical strength of horizontal guide rail, and the support force of opposite house body is stronger, reduces the strength that screw bore.

In some specific place, require the door body to have the function of venting of dust explosion, so in the utility model, the lower end of fleeting tackle with the syndeton of door body is: uniformly in door body upper end install a plurality of bending fixture blocks 17, riser 24 bottoms that setting-in fleeting tackle lower end is adorned in these a plurality of bending fixture blocks, when heavy explosion appears in workshop or inside, warehouse, when the impact force that the door body is subjected to is excessive, door is known from experience disengagement bending fixture block and is freely dropped on the ground, not only absorb the energy that a part of blast produces, and the dangerous situation that a fragmentation body flies out can not occur.

The end that leading screw stretches out girder is equipped with gear 9, this gear is meshed with the driving gear of electric machine main shaft, realized the rotation of leading screw, but when the special circumstances that electrical fault or power failure occur are, in order not influence normal work, on girder, also install one with the hand chain wheel 8 of gears engaged, the staff can connect this hand chain wheel to beat opening door body by assembly pulley.

The gross weight of door body is very big, when operation, its speed is slower, but when the door body is closed, be pressed through people, the thing of door opening, thus be embedded with infrared optic-electric detects technique 12 on the beam column surface on matrix right side, when the door body when closing, in case people, thing pass through, infrared optic-electric detects technique is triggered and exports a signal, make the motor stall, has guaranteed the safety of people, thing.

Adopt the main story that is installed in the Frequency Converter Control motor in the electric control box in the utility model, counter-rotating, the power output end of frequency converter connects motor, and by door open button, door close button and a plurality of travel switch 3 are realized control procedure, wherein travel switch comprises the main travel switch that opens the door, the pair travel switch that opens the door, main close the door travel switch and the pair travel switch of closing the door, the main travel switch of closing the door is among Fig. 1 from the right several second, pair is closed the door travel switch for counting first from the right among Fig. 1, the main travel switch that opens the door is among Fig. 1 from the left side several second, and the pair travel switch that opens the door is counted first among Fig. 1 from the left side.When the door body is closed, at first the driving lever of the fleeting tackle of rightmost side upper end installation touches the main travel switch of closing the door, after the frequency converter received signal, motor is slowed down, and by the time relay timing of frequency converter inside, the frequency converter power failure machine of stopping after the time, make a body phase down, when main when closing the door the travel switch attonity, the pair travel switch of closing the door has played the effect of second insurance, still can produce triggering signal to frequency converter and a body is stopped under the touching of fleeting tackle; In like manner when the door body is opened, the triggering signal of the main travel switch that opens the door is slowed down a body, and after timing was finished then, a door body stopped, and the pair travel switch that opens the door has also played the effect of second insurance.The control end that the output of infrared optic-electric detects technique also is connected to frequency converter stops one and guarantees to pass the people of door opening, the safety of thing so that the control motor is anxious.

The utility model is simple in structure, by leading screw and fleeting tackle realized the door body steadily, accurate operation, the unlatching of door body or close by the Frequency Converter Control motor and realize, the automatization level height, safe and reliable, and the barium sulfate concrete of filling in the door body, radiation proof is effective.

Claims

1. radiation protection door, comprise the matrix, door body and the electric control box that are shaped on door opening on it, on the matrix above the door opening, girder is installed, it is characterized in that: in girder, install one by motor-driven leading screw, the many groups of the screw lower end lifting fleeting tackle that meshes on the leading screw, the roller that every group of fleeting tackle upper end is adorned slides and is crimped on the surface of the horizontal guide rail that girder adorns, and the lower end of every group of fleeting tackle all connects the upper end of a body.

2. radiation protection door according to claim 1, it is characterized in that: the lower end of the screw of adorning installs a plate on the described leading screw, this junction plate bottom surface installs many group fleeting tackles at interval, every group of fleeting tackle is made up of two fleeting tackles that are symmetricly set on the leading screw both sides, the girder bottom surface symmetry of leading screw both sides is fixed with and the homonymy fleeting tackle vertical suspension bracket of contraposition mutually, all make and the homoaxial horizontal guide rail of leading screw in each vertical suspension bracket bottom, the syndeton of this horizontal guide rail and homonymy fleeting tackle is: crimping one roller that slides respectively on the horizontal guide rail surface that is positioned at vertical suspension bracket both sides, these two roller symmetries are installed in the upper end of fleeting tackle.

3. radiation protection door according to claim 1 is characterized in that: described girder is installed in the bottom surface of the outrigger of adorning on the matrix. ?

4. radiation protection door according to claim 1 and 2 is characterized in that: the bottom surface of described each horizontal guide rail all is fixed with triangle ruggedized construction. ?

5. radiation protection door according to claim 1 and 2, it is characterized in that: the lower end of described fleeting tackle with the syndeton of door body is: uniform a plurality of bending fixture blocks, the riser that setting-in fleeting tackle lower end is adorned in these a plurality of bending fixture blocks of installing in door body upper end. ?

6. radiation protection door according to claim 1 and 2 is characterized in that: the end that described leading screw stretches out girder connects motor by gear, this gear hand chain wheel that also is connected with a joggle. ?

7. according to claim 1 or 2 or 3 described radiation protection doors, it is characterized in that: the left end of described girder and right-hand member are installed the one stroke switch respectively, the output of these two travel switches connects the frequency converter in the electric control box, and this frequency converter also connects the infrared optic-electric detects technique on the matrix of right side after motor and the body closure.