CN206736325U

CN206736325U - Getter

Info

Publication number: CN206736325U
Application number: CN201720310403.5U
Authority: CN
Inventors: 陆宏明
Original assignee: Ningbo City Beilun Debang Mould Technology Co
Current assignee: Ningbo City Beilun Debang Mould Technology Co
Priority date: 2017-03-28
Filing date: 2017-03-28
Publication date: 2017-12-12
Anticipated expiration: 2027-03-28

Abstract

The utility model discloses a kind of getter, the elevator chamber being arranged at including frame, sliding in the frame, the regulating part one for adjusting the elevator chamber lifting, the rotating shaft being rotationally connected with the elevator chamber, fixed frame, the slider bar being sheathed in the rotating shaft are provided with the elevator chamber, the string bag, multiple rotating bars are provided with the fixed frame.The utility model has advantages below and effect：Using setting rotating shaft on elevator chamber, the string bag is set on fixed frame, after when rotating shaft is located in molten metal, inert gas is emerged from rotating shaft lower end, bubble is formed in molten metal, bubble floating takes away the impurity in molten metal, impurity is set to be located at the upper strata of molten metal, slider bar is adjusted with regulating part two to decline, the string bag opens, elevator chamber is driven to rise with regulating part two, elevator chamber drives rotating shaft and the string bag to rise, and salvages the impurity on molten metal upper strata, has reached and has removed that molten metal upper strata impurity is convenient, the effect of safe operation.

Description

Getter

Technical field

It the utility model is related to metallic article manufacture, more particularly to a kind of getter.

Background technology

Getter is a kind of aluminium liquid purification apparatus, sprays indifferent gas by hollow setting and the at a high speed rotating shaft of rotation Body, inert gas enter it is broken after molten metal dissipate into very trickle minute bubbles, and it is dispersed in molten metal.It is logical The stingy bulb diameter of over-subtraction, the surface area for making bubble total be increased dramatically, and this is allowed in more inertia bubble surfaces and molten metal Hydrogen and impurity contact, so as to which these impurity are taken to liquid surface.

Authorization Notice No. is CN203794964U Chinese patent《A kind of getter》Disclose a kind of getter, including control Cabinet, base and vertical rod processed, vertical rod are provided with servomotor, and the main shaft of servomotor is connected with parameter case, the bottom and top of vertical rod Portion is respectively provided with a sprocket wheel, and chain is provided between sprocket wheel.

But above-mentioned getter has the following disadvantages：Inert gas is injected into molten metal by getter by graphite rotor Afterwards, the bubble that inert gas is formed takes the impurity in molten metal to liquid surface, when adjusting graphite rotor by servomotor It is lifted off after molten metal, it is necessary to worker's craft string bag removes the impurity on molten metal upper strata, molten metal temperature is high during operation, work Potential safety hazard when people is salvaged with the string bag be present.

Utility model content

The purpose of this utility model is to provide a kind of getter, has and improves security performance when removing molten metal upper strata impurity Effect.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of getter, including The elevator chamber that frame, sliding are arranged in the frame, the regulating part one for adjusting the elevator chamber lifting, it is rotationally connected with It is used for the hollow rotating shaft for spraying inert gas on the elevator chamber, is provided with and is fixed on the elevator chamber on the elevator chamber And be sheathed in the rotating shaft fixed frame, be sheathed in the rotating shaft and the slider bar above the fixed frame, it is described The string bag for being fixedly connected on the fixed frame is provided with fixed frame, multiple one end are articulated with the fixed frame and the other end is consolidated Due to being used on the string bag by the rotating bar of the string bag folding, being provided with more in the slider bar corresponds in described The connecting rod of rotating bar, described connecting rod one end is articulated with the rotating bar and the other end is articulated with the slider bar, institute State the regulating part two being provided with elevator chamber for adjusting the slider bar lifting and positioning.

By using above-mentioned technical proposal, when getter works, rotating shaft is placed on above molten metal, passes through regulating part one Adjust elevator chamber to decline, the rotating shaft on elevator chamber is inserted into molten metal, and the inert gas on getter is entered by rotating shaft In molten metal, inert gas floats after forming bubble in molten metal, touches the impurity in molten metal, band of the impurity in bubble Dynamic float downward, gather the upper strata of molten metal.

When needing to salvage the impurity on molten metal upper strata, adjust slider bar with the regulating part two on elevator chamber and decline, slide Frame drives connecting rod motion, driving rotating bar to open the string bag after rotating after declining, after the string bag opens, adjusted and risen with regulating part one Drop case to rise, elevator chamber drives rotating shaft, fixed frame and the string bag to move upwards, and the string bag from down to up enters the impurity on molten metal upper strata Row is opened, and does not need worker to be salvaged with the string bag on molten metal upper strata during salvaging, is improved security, has been reached removal metal The effect during impurity of liquid upper strata conveniently, safely.

It is of the present utility model to be further arranged to：The regulating part two include conditioning box above the slider bar, The slider bar is fixed in more lower ends and upper end is fixed on the conditioning box connecting rod one, be fixed in the elevator chamber and Dividing plate above the conditioning box, be fixed on the dividing plate and positioned at the rotating shaft outer wall and the conditioning box inwall it Between more guide rods, middle part be articulated with adjusting rod in the elevator chamber, described adjusting rod one end is articulated with the conditioning box The upper and other end, which is provided with, is fed through the regulating bolt that the adjusting rod rear thread is connected to the lifting chamber interior wall, the regulation Chamber interior wall is vertically provided with multiple screwed holes for regulating bolt threaded connection.

By using above-mentioned technical proposal, after rotation regulating bolt takes out regulating bolt from screwed hole, adjustment regulation Bar is lifted close to one end of screwed hole, and adjusting rod is swung along middle part hinged place, and then drives the one end of adjusting rod away from screwed hole Lifting, the one end of adjusting rod away from screwed hole is hinged on conditioning box, and then conditioning box can be driven to lift.It is provided with dividing plate More guide rods, guide rod prevent from touching rotating shaft when conditioning box from lifting between rotating shaft outer wall and conditioning box inwall.Regulation Frame lifting drives slider bar to lift by connecting rod one.After regulating bolt is threaded in screwed hole, adjusting rod is positioned, and is entered And conditioning box, connecting rod one, slider bar are positioned, slider bar is adjusted by regulating part two and lifted.

It is of the present utility model to be further arranged to：The hinge hole being provided with the middle part of the adjusting rod, the hinge hole is edge It is provided with described in the bar hole that the adjusting rod length direction is set in elevator chamber and is fed through the hinge hole and both ends are fixed on Jointed shaft in the elevator chamber, the jointed shaft both ends are fixed on inside the elevator chamber on the inwall of both sides.

By using above-mentioned technical proposal, jointed shaft both ends are fixed on lifting chamber interior wall, after jointed shaft passes through hinge hole Coordinate in gap, adjusting rod is swung centered on jointed shaft.

It is of the present utility model to be further arranged to：The guide rod is vertically arranged and is circumferentially uniformly distributed along the rotating shaft.

By using above-mentioned technical proposal, guide rod is circumferentially uniformly distributed along rotating shaft, uniform force when conditioning box lifts.

It is of the present utility model to be further arranged to：The conditioning box is located in the elevator chamber, and the elevator chamber bottom is set Opening is equipped with, the connecting rod one is fed through the opening.

By using above-mentioned technical proposal, elevator chamber bottom wall sets opening, passed through for connecting rod one.

It is of the present utility model to be further arranged to：Through hole is provided with the dividing plate, the rotating shaft upper end is arranged with bearing, The bearing outer ring and the through hole are interference fitted, be provided with inertial gas tank in the frame, one end be communicated in it is described lazy Property gas reservoir and the other end are connected to the tracheae of the rotating shaft upper end by swivel joint.

By using above-mentioned technical proposal, bearing is arranged in rotating shaft, bearing outer ring, in interference fit, is realized with through-hole wall The effect that rotating shaft can rotate relative to elevator chamber.Inert gas in inertial gas tank is flowed into rotating shaft by tracheae, tracheae It is connected to by swivel joint in rotating shaft, avoids driving tracheae to rotate during axis of rotation.

It is of the present utility model to be further arranged to：The rotating shaft upper end is fixed with the belt pulley above the dividing plate, Electric rotating machine is fixed with the elevator chamber, the electric rotating machine passes through pulley rotation described in belt drive.

By using above-mentioned technical proposal, for electric rotating machine by belt drive pulley rotation, belt pulley drives rotating shaft rotation Turn, when rotating shaft lower end be located in molten metal, electric rotating machine drive shaft rotate, inert gas after rotating shaft lower ending opening is emerged, It is stirred to form multiple tiny bubbles, increases the contact area of inert gas and molten metal.

It is of the present utility model to be further arranged to：The elevator chamber side wall setting is jagged, and the regulating bolt is butterfly Bolt and in the breach.

By using above-mentioned technical proposal, the breach of elevator chamber side wall exposes regulating bolt to come, and is conveniently adjusted regulation The one end of bolt and adjusting rod away from conditioning box.Regulating bolt selects wing bolt, and wing bolt is that one kind need not use work Tool, the bolt that directly can be turned with hand are convenient to rotate regulating bolt.

It is of the present utility model to be further arranged to：Connecting rod two is provided with the fixed frame, the upper end of connecting rod two is fixed It is fixed on the elevator chamber and lower end on the fixed frame.

By using above-mentioned technical proposal, fix bar is fixed on elevator chamber by connecting rod two.

It is of the present utility model to be further arranged to：The regulating part one includes being rotationally connected with upper sprocket wheel in frame, turned The dynamic lower sprocket being connected in the frame and below the upper sprocket wheel, it is engaged in the upper sprocket wheel and the lower sprocket Ring chain, the servomotor for being used to drive upper sprocket wheel to lift is fixed in frame, vertical guiding is provided with the frame Post, the sliding sleeve that sliding is sheathed in the lead is fixed with the elevator chamber, and the elevator chamber is fixed on the endless chain On bar.

By using above-mentioned technical proposal, sliding sleeve is set on elevator chamber, lead is set in frame, sliding sleeve sliding is set in On lead, elevator chamber is set to be lifted along lead in frame.When servomotor rotates forward, driving upper sprocket wheel rotates, cochain Wheel belt rotating ring shape chain movement and then drive elevator chamber rising.When servomotor inverts, driving upper sprocket wheel rotates, and then passes through ring Shape chain-driving elevator chamber declines, and has reached the function of realizing regulation elevator chamber lifting.

In summary, the utility model has the advantages that：Using rotating shaft is set on elevator chamber, set on fixed frame The string bag is put, after inert gas is emerged from rotating shaft lower end when rotating shaft is located in molten metal, forms bubble in molten metal, on bubble The floating impurity taken away in molten metal, makes impurity be located at the upper strata of molten metal, and adjusting slider bar with regulating part two declines, the string bag Open, drive elevator chamber to rise with regulating part two, elevator chamber drives rotating shaft and the string bag to rise, and salvages the impurity on molten metal upper strata, reaches Arrive and removed molten metal upper strata impurity convenience, the effect of safe operation.

Brief description of the drawings

Fig. 1 is the structural representation of embodiment；

Fig. 2 is rotating shaft, elevator chamber, regulating part two, the isostructural position relationship schematic diagram of electric rotating machine；

Fig. 3 is rotating shaft, fixed frame, slider bar, regulating part two, dividing plate, the isostructural exploded perspective view of swivel joint.

In figure：1st, frame；11st, lead；2nd, elevator chamber；21st, dividing plate；211st, through hole；212nd, bearing；22nd, electric rotating machine； 221st, belt；23rd, screwed hole；24th, it is open；25th, breach；26th, sliding sleeve；3rd, regulating part one；31st, upper sprocket wheel；32nd, lower sprocket；33、 Ring chain；34th, servomotor；4th, rotating shaft；41st, belt pulley；5th, fixed frame；51st, the string bag；52nd, rotating bar；53rd, connecting rod two；6、 Slider bar；61st, connecting rod；62nd, connecting rod one；7th, regulating part two；71st, conditioning box；72nd, guide rod；73rd, adjusting rod；731st, it is hinged Hole；732nd, jointed shaft；74th, regulating bolt；8th, inertial gas tank；81st, tracheae；82nd, swivel joint.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Specific embodiment is only that it is not to limitation of the present utility model, this area to explanation of the present utility model Technical staff can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but only All to be protected in right of the present utility model by Patent Law.

Getter, as shown in figure 1, including frame 1, it is provided with elevator chamber 2 in frame 1 and is lifted for adjusting elevator chamber 2 Regulating part 1.The lead 11 being vertically arranged is provided with frame 1, the section of lead 11 is rectangle.Set on elevator chamber 2 Sliding sleeve 26 is equipped with, sliding sleeve 26 is enclosed on lead 11.Regulating part 1 includes upper sprocket wheel 31, the rotation being rotatably connected in frame 1 The lower sprocket 32 being connected in frame 1, the ring chain 33 being set on upper sprocket wheel 31 and lower sprocket 32, lower sprocket 32 is positioned at upper Immediately below sprocket wheel 31, ring chain 33 is engaged on upper sprocket wheel 31 and lower sprocket 32.Regulating part 1 also includes being fixed on frame 1 On servomotor 34, upper sprocket wheel 31 includes central shaft and fixed sprocket wheel on center shaft, and central axis is connected to frame 1 On.The output shaft of servomotor 34 is connected on central shaft by shaft coupling.Elevator chamber 2 is fixed on ring chain 33.

As shown in figure 1, the operation principle of regulating part 1, servomotor 34 drives central axis, and central axis drives chain Wheel and ring chain 33 rotate, and ring chain 33 drives elevator chamber 2 to be moved along the direction of lead 11, drive elevator chamber 2 to rise. Servomotor 34 drives central shaft to rotate backward, and after centre axis movable sprocket and ring chain 33 move, drives elevator chamber 2 along leading Moved to the direction of post 11, drive elevator chamber 2 to decline, reach the function that regulation elevator chamber 2 lifts.

As shown in Figure 1, Figure 2, Figure 3 shows, inertial gas tank 8 is fixed with frame 1 and one end is communicated in inertial gas tank 8 Tracheae 81, be provided with valve on tracheae 81.The other end of tracheae 81 is provided with hollow rotating shaft 4, rotating shaft 4 be vertically arranged and Upper and lower ends are 24 structures of opening.The one end of tracheae 81 away from inertial gas tank 8 is connected to rotating shaft 4 by swivel joint 82 Upper end.

As shown in Figure 2 and Figure 3, the upper end of rotating shaft 4 is located in elevator chamber 2, and horizontally disposed dividing plate 21 is fixed with elevator chamber 2, Through hole 211 is provided with dividing plate 21, bearing 212 is arranged with rotating shaft 4, bearing 212 is located in through hole 211 and outside bearing 212 Circle, in interference fit, enables rotating shaft 4 to be rotated relative to elevator chamber 2 with the inwall of through hole 211.The bottom of elevator chamber 2 is provided with opening 24, the lower end of rotating shaft 4 is fed through downwards after opening 24 positioned at the lower end of elevator chamber 2.Electric rotating machine 22 is fixed with elevator chamber 2, is turned It is fixed with belt 221 on axle 4 to take turns, electric rotating machine 22 drives the wheel of belt 221 to rotate by belt 221, and then drives 4 turns of rotating shaft It is dynamic.

As shown in Figure 2 and Figure 3, fixed frame 5 is arranged with rotating shaft 4, more connecting rods 2 53, connecting rod two are provided with fixed frame 5 53 are uniformly distributed along rotating shaft 4 is circumferential.The upper end of connecting rod 2 53 is welded on elevator chamber 2 and lower end is welded on fixed frame 5.It is fixed More rotating bars 52 are provided with frame 5, the lower end of rotating bar 52 is hinged on fixed frame 5.The string bag 51 is fixed with fixed frame 5, To be fixed on fixed frame 5, the edge of the string bag 51 is separately fixed at one of rotating bar 52 away from fixed frame 5 at the middle part of the string bag 51 End.Rotating bar 52, which rotates, to open the string bag 51 or close up.

As shown in Figure 2 and Figure 3, the slider bar 6 being arranged with rotating shaft 4 above fixed frame 5, it is provided with slider bar 6 more Root corresponds the connecting rod 61 in rotating bar 52, and the one end of connecting rod 61 is hinged in slider bar 6 and the other end is hinged on and turned The middle part of lever 52.The regulating part 27 for adjusting the lifting of slider bar 6 is provided with elevator chamber 2, regulating part 27 adjusts slider bar 6 During rising, slider bar 6 and connecting rod 61 drive the close rotating shaft 4 after rotating of rotating bar 52, and the string bag 51 is closed up.Regulating part 27 is adjusted When saving the decline of slider bar 6, slider bar 6 and connecting rod 61 drive connecting rod 61 to rotate, and the string bag 51 is opened.

As shown in Figure 2 and Figure 3, regulating part 27 includes being set in rotating shaft 4 and positioned at the conditioning box of the top of slider bar 6 71st, the more connecting rods 1 for being fed through opening 24, the upper end of connecting rod 1 is welded on conditioning box 71 and lower end is welded on slip On frame 6.Connecting rod 1 is uniformly distributed along rotating shaft 4 is circumferential.The more guide rods being vertically arranged 72, guide rod are fixed with dividing plate 21 72 are uniformly distributed along rotating shaft 4 is circumferential.Guide rod 72 is between conditioning box 71 and rotating shaft 4, the inwall of conditioning box 71 contact guide rod 72 outer walls.Regulating part 27 also includes the adjusting rod 73 that middle part is articulated with elevator chamber 2, and the middle part of adjusting rod 73 is provided with hinge hole 731, hinge hole 731 is the bar hole set along the length direction of adjusting rod 73, and jointed shaft 732, jointed shaft are provided with elevator chamber 2 732 are fed through hinge hole 731 and both ends are fixed on the inwall of elevator chamber 2.Jointed shaft 732 coordinates with hinge hole 731 in gap. The one end of adjusting rod 73 is hinged on adjusting rod 73, and the other end is provided with regulating bolt 74.Jagged 25 are set on elevator chamber 2, is adjusted Section bolt 74 is located in breach 25.Regulating bolt 74 selects wing bolt, and the inwall of elevator chamber 2 is provided with multiple on vertically Screwed hole 23, wing bolt are fed through the rear thread of adjusting rod 73 and are connected in screwed hole 23.

As shown in Figure 2 and Figure 3, the operation principle of regulating part 27：When needing to adjust the decline of slider bar 6, regulating bolt is rotated 74, after regulating bolt 74 is departed from out of screwed hole 23, the one end of adjusting rod 73 away from conditioning box 71 is pulled up, drives regulation After bar 73 is rotated centered on jointed shaft 732, adjusting rod 73 drives conditioning box 71 to decline, and conditioning box 71 is driven by connecting rod 1 Slider bar 6 moves downward, and the connecting rod 61 in slider bar 6 drives rotating bar 52 to rotate, and the string bag 51 is opened.Tune is now rotated again Bolt 74 is saved, after regulating bolt 74 is rotated into screwed hole 23, the position of adjusting rod 73 is fixed so that the string bag 51, which is in, to be opened The state opened.When needing to close up in the string bag 51, after regulating bolt 74 is removed in rotation, adjusting rod 73 is pulled downward on away from conditioning box 71 one end, after driving adjusting rod 73 to be rotated centered on jointed shaft 732, conditioning box 71 is driven to rise, then pass through conditioning box 71 Drive slider bar 6 to rise, after slider bar 6 rises, drive rotating bar 52 to rotate, the string bag 51 is closed up.

Getter operation principle：Rotating shaft 4 is positioned over above molten metal, the drive shaft 4 of electric rotating machine 22 rotates, and passes through tune Section part 1 adjusts elevator chamber 2 and declined, and elevator chamber 2 drives rotating shaft 4 to decline after declining, and rotating shaft 4 is entered in molten metal, indifferent gas Inert gas is passed into rotating shaft 4 by body storage tank 8 by tracheae 81, then is entered from the lower end of rotating shaft 4 in molten metal, inert gas Enter in molten metal after forming bubble and float, the impurity in molten metal is taken out of upwards, molten metal upper strata is floated on impurity.Again Slider bar 6 is adjusted by regulating part 27 to decline, slider bar 6 is rotated after declining by the drive of connecting rod 61 rotating bar 52, is spread a net Pocket 51.After regulating part 1 drives elevator chamber 2 to rise, rotating shaft 4 and the string bag 51 is driven to rise, by metal in the uphill process of the string bag 51 The impurity on liquid upper strata, which is salvaged, to be come.

Claims

1. a kind of getter, including frame（1）, sliding be arranged at the frame（1）On elevator chamber（2）, it is described for adjusting Elevator chamber（2）The regulating part one of lifting（3）, be rotationally connected with the elevator chamber（2）It is upper to be used to spray the hollow of inert gas Rotating shaft（4）, it is characterised in that：The elevator chamber（2）On be provided with and be fixed on the elevator chamber（2）Go up and be sheathed on the rotating shaft （4）On fixed frame（5）, be sheathed on the rotating shaft（4）Go up and be located at the fixed frame（5）The slider bar of top（6）, it is described solid Determine frame（5）On be provided with and be fixedly connected on the fixed frame（5）The string bag（51）, multiple one end be articulated with the fixed frame（5） The upper and other end is fixed on the string bag（51）It is upper to be used for the string bag（51）The rotating bar of folding（52）, the slider bar （6）On be provided with more and correspond in the rotating bar（52）Connecting rod（61）, the connecting rod（61）One end is articulated with The rotating bar（52）The upper and other end is articulated with the slider bar（6）On, the elevator chamber（2）On be provided with for adjusting institute State slider bar（6）Lifting and the regulating part two of positioning（7）.

2. getter according to claim 1, it is characterised in that：The regulating part two（7）Including positioned at the slider bar （6）The conditioning box of top（71）, more lower ends be fixed on the slider bar（6）And the conditioning box is fixed in upper end（71）On Connecting rod one（62）, be fixed on the elevator chamber（2）It is interior and be located at the conditioning box（71）The dividing plate of top（21）, be fixed on it is described Dividing plate（21）Go up and be located at the rotating shaft（4）Outer wall and the conditioning box（71）More guide rods between inwall（72）, middle part It is articulated with the elevator chamber（2）Interior adjusting rod（73）, the adjusting rod（73）One end is articulated with the conditioning box（71）It is upper and The other end, which is provided with, is fed through the adjusting rod（73）Rear thread is connected to the elevator chamber（2）The regulating bolt of inwall（74）, The regulation chamber interior wall is vertically provided with multiple for the regulating bolt（74）The screwed hole of threaded connection（23）.

3. getter according to claim 2, it is characterised in that：The adjusting rod（73）Middle part is provided with hinge hole （731）, the hinge hole（731）For along the adjusting rod（73）The bar hole that length direction is set, the elevator chamber（2）Inside set It is equipped with and is fed through the hinge hole（731）And the elevator chamber is fixed at both ends（2）Interior jointed shaft（732）, the jointed shaft （732）The elevator chamber is fixed at both ends（2）On internal both sides inwall.

4. getter according to claim 3, it is characterised in that：The guide rod（72）It is vertically arranged and along the rotating shaft （4）Circumferentially it is uniformly distributed.

5. getter according to claim 4, it is characterised in that：The conditioning box（71）Positioned at the elevator chamber（2）It is interior, The elevator chamber（2）Bottom is provided with opening（24）, the connecting rod one（62）It is fed through the opening（24）.

6. getter according to claim 5, it is characterised in that：The dividing plate（21）On be provided with through hole（211）, it is described Rotating shaft（4）Upper end is arranged with bearing（212）, the bearing（212）Outer ring and the through hole（211）Interference fit, the frame （1）On be provided with inertial gas tank（8）, one end be communicated in the inertial gas tank（8）And the other end passes through swivel joint （82）It is connected to the rotating shaft（4）The tracheae of upper end（81）.

7. getter according to claim 6, it is characterised in that：The rotating shaft（4）Upper end is fixed with positioned at the dividing plate （21）The belt pulley of top（41）, the elevator chamber（2）Inside it is fixed with electric rotating machine（22）, the electric rotating machine（22）Pass through skin Band（221）Drive the belt pulley（41）Rotate.

8. getter according to claim 7, it is characterised in that：The elevator chamber（2）Side wall sets jagged（25）, institute State regulating bolt（74）For wing bolt and it is located at the breach（25）It is interior.

9. getter according to claim 1, it is characterised in that：The fixed frame（5）On be provided with connecting rod two（53）, institute State connecting rod two（53）The elevator chamber is fixed in upper end（2）The fixed frame is fixed in upper and lower end（5）On.

10. getter according to claim 9, it is characterised in that：The regulating part one（3）Including being rotationally connected with frame （1）On upper sprocket wheel（31）, be rotationally connected with the frame（1）Go up and be located at the upper sprocket wheel（31）The lower sprocket of lower section （32）, be engaged in the upper sprocket wheel（31）With the lower sprocket（32）Ring chain（33）, be fixed on frame（1）It is upper to be used to drive Dynamic upper sprocket wheel（31）The servomotor of lifting（34）, the frame（1）On be provided with vertical lead（11）, the elevator chamber （2）On be fixed with sliding and be sheathed on the lead（11）Interior sliding sleeve（26）, the elevator chamber（2）It is fixed on the endless chain Bar（33）On.