CN102808218B - Material-loading polycrystalline furnace - Google Patents

Material-loading polycrystalline furnace Download PDF

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Publication number
CN102808218B
CN102808218B CN201110145108.6A CN201110145108A CN102808218B CN 102808218 B CN102808218 B CN 102808218B CN 201110145108 A CN201110145108 A CN 201110145108A CN 102808218 B CN102808218 B CN 102808218B
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CN
China
Prior art keywords
arm
axle sleeve
bell
polycrystalline furnace
optical axis
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CN201110145108.6A
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Chinese (zh)
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CN102808218A (en
Inventor
汤旋
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浙江昱辉阳光能源有限公司
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Priority to CN201110145108.6A priority Critical patent/CN102808218B/en
Publication of CN102808218A publication Critical patent/CN102808218A/en
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Abstract

The invention provides a material-loading polycrystalline furnace. The material-loading polycrystalline furnace comprises a furnace body (8) and a furnace cover (1), wherein the material-loading polycrystalline furnace further comprises a connecting arm (3), an optical axis (9), a rotating base (6) and a telescopic member (5); the one end of the connecting arm (3) is connected to the furnace cover (1); the optical axis (9) which is sleeved with an axle sleeve (10) is arranged outside the furnace body (8); the axle sleeve (10) can rotate around the optical axis (9) and is hinged between two ends of the connecting arm (3); the rotating base (6) is connected with the axle sleeve (10); one end of telescopic member (5) is hinged to the rotating base (6) while the other end thereof is hinged to the other end of the connecting arm (3); and the telescopic member (5) drives the connecting arm (3) to rotate along a hinge point thereof in a vertical surface. The material-loading polycrystalline provided by the invention reduces a bending moment generated due to force of gravity of the furnace cover, further reduces friction force between the optical axis and the axle sleeve and guarantees to open the furnace cover steadily.

Description

Upper charging polycrystalline furnace
Technical field
The present invention relates to production of polysilicon equipment technical field, more particularly, relate to polycrystalline furnace that one feeds.
Background technology
Polysilicon is very important intermediates in silicon product industrial chain.In recent years, the develop rapidly of silicon solar cell has driven the development of polysilicon industry, and then causes the demand of market to polysilicon increasing.In order to meet the large demand in present market, saving the production cost of polysilicon simultaneously, in existing polysilicon production process, by increasing the body of heater volume of polycrystalline furnace, thus increasing the output of polysilicon.
Polycrystalline furnace can be divided into upper charging polycrystalline furnace and lower charging polycrystalline furnace by the difference of charging method, wherein: by hoisting appliance, bell is risen in the process that polycrystalline furnace of above feeding is opened at bell, then push bell open around turning axle, thus realize the crucible filling silicon material to put in the burner hearth of body of heater.But in order to meet the large demand of polysilicon, the body of heater of existing upper charging polycrystalline furnace also increases, and causes the area of body of heater, bell and weight to increase thereupon.In order to realize the unlatching to bell, design the Main way that a kind of convenient opener opening bell is design at present.
The opening ways of the bell of existing a kind of upper charging polycrystalline furnace is the method rotated after first kindling lid.Hoisting appliance rotarily drives turbine mainly through motor and rotates, and turbine rotation drives worm screw to rotate, and worm screw connects optical axis, and the rotation of worm screw promotes optical axis and rises, the rising of optical axis and then by bell upwards jack-up, finally realizes lifting of bell.Bell leaves body of heater after rising, and relies on the optical axis being arranged on bell side to support, and now because the gravity of bell produces moment of flexure on optical axis, optical axis is bent.Because optical axis is set in axle sleeve, the bending frictional force of optical axis and axle sleeve that makes of optical axis increases, cause optical axis and worm screw cannot proper engagement, and then make optical axis produce shake from the uphill process in axle sleeve, frictional force time serious between optical axis and axle sleeve causes optical axis to rise, and finally causes bell to open.
Therefore, can draw from above-mentioned bell opening process, polycrystalline furnace that design one is feeded, to reduce the moment of flexure because bell gravity produces, and then the frictional force reduced between optical axis and axle sleeve, ensureing stable the opening of bell, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides polycrystalline furnace that one feeds, the moment of flexure produced with the gravity reducing bell, and then reduce the frictional force between optical axis and axle sleeve.
In order to achieve the above object, the invention provides following technical scheme:
One to be feeded polycrystalline furnace, comprises body of heater and bell, also comprise:
One end is connected to the connecting arm on described bell;
Be arranged on the optical axis outside described body of heater, it is arranged with axle sleeve, this axle sleeve can rotate around described optical axis, and between the two ends being hinged on described connecting arm;
The rotation seat be connected with described axle sleeve;
One end is hinged on described rotation seat, and the other end is hinged on the other end of described connecting arm, and drives described connecting arm in vertical plane along the extensible member that its pin joint rotates.
Preferably, in above-mentioned upper charging polycrystalline furnace, the outside of described body of heater is provided with some bracing frames, and described optical axis is arranged on one of them support frame as described above.
Preferably, in above-mentioned upper charging polycrystalline furnace, some support frames as described above are distributed on the outside of described body of heater, and the quantity of bracing frame is three.
Preferably, in above-mentioned upper charging polycrystalline furnace, described bell is also provided with the stiffening web be connected with described connecting arm.
Preferably, in above-mentioned upper charging polycrystalline furnace, described stiffening web is provided with multiple hole.
Preferably, in above-mentioned upper charging polycrystalline furnace, described stiffening web is two, and described connecting arm is symmetrical structure, article two, described stiffening web is symmetrically distributed in the symmetric line both sides of described connecting arm, and one end that the distance between two described stiffening webs is connected with described connecting arm from it increases gradually to the other end.
Preferably, in above-mentioned upper charging polycrystalline furnace, described extensible member is hydro-cylinder or pneumatic cylinder.
Preferably, in above-mentioned upper charging polycrystalline furnace, described axle sleeve and described rotation seat are integral type structure.
Preferably, in above-mentioned upper charging polycrystalline furnace, one end that described axle sleeve is connected with described connecting arm is provided with bearing support, described bearing support and described connecting arm hinged, described bearing support is provided with bearing.
Preferably, in above-mentioned upper charging polycrystalline furnace, the shape of cross section of described body of heater is circular or square.
Compared with existing upper charging polycrystalline furnace, core improvement of the present invention is: adopt lever principle to be dug by bell, and the distance of centre of gravity of bell supports the distance reduction of the parts of its upset in the process, reduces the moment of flexure of action of gravity on axle sleeve of bell.
The working process of upper charging polycrystalline furnace provided by the invention is as follows:
The telescopic end contraction bands of the extensible member arm that is dynamically connected rotates around its pin joint, connecting arm is now equivalent to take axle sleeve as fulcrum, one end is connected with connecting arm, the lever that the other end is connected with extensible member, the rotation of connecting arm and then bell is dug, when bell digs the angle of setting, now rotary axle box, the parts such as rotation seat, connecting arm, bell rotate around optical axis, thus bell is turned to the side of body of heater.After discharging silicon material, above-mentioned parts can be rotated around optical axis, stretching out finally by extensible member, bell is covered again on body of heater.
In upper charging polycrystalline furnace provided by the invention, what be connected with bell is axle sleeve, bell is in the process of digging, the center of gravity of bell is gradually near axle sleeve, and because the gravity of bell is constant, the arm of force acted on axle sleeve is reducing, and then reduce the moment of flexure of bell gravity generation, reduce the bending of axle sleeve, and then reduce the frictional force between optical axis and axle sleeve, ensure that stable the opening of bell.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the upper charging polycrystalline furnace that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
In Fig. 1-2:
Bell 1, stiffening web 2, connecting arm 3, jointed shaft 4, extensible member 5, rotation seat 6, bracing frame 7, body of heater 8, optical axis 9, axle sleeve 10.
Embodiment
The invention provides polycrystalline furnace that one feeds, the moment of flexure that the gravity reducing bell produces, and then reduce the frictional force between optical axis and axle sleeve, ensure that stable the opening of bell.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 1-2, the structural representation of the upper charging polycrystalline furnace that Fig. 1 provides for the embodiment of the present invention.Fig. 2 is that the A-A of Fig. 1 is to sectional view.
The upper charging polycrystalline furnace that the embodiment of the present invention provides, comprises body of heater 8 and bell 1, also comprises:
One end is connected to the connecting arm 3 on described bell 1;
Be arranged on the optical axis 9 outside described body of heater 8, it be arranged with axle sleeve 10, this axle sleeve 10 can rotate around described optical axis 9, and between the two ends being hinged on described connecting arm 3;
The rotation seat 6 be connected with described axle sleeve 10;
One end is hinged on described rotation seat 6, and the other end is hinged on the other end of described connecting arm 3, and drives described connecting arm 3 in vertical plane along the extensible member 5 that its pin joint rotates.
The working process of the upper charging polycrystalline furnace provided in the embodiment of the present invention is as follows: the telescopic end contraction bands of extensible member 5 arm 3 that is dynamically connected rotates around its pin joint, connecting arm 3 is now equivalent to axle sleeve 10 for fulcrum, one end is connected with connecting arm 3, the lever that the other end is connected with extensible member 5, the rotation of connecting arm 3 and then bell 1 is dug, when bell 1 digs the angle of setting, now rotary axle box 10, the parts such as rotation seat 6, connecting arm 3, bell 1 rotate around optical axis 9, thus bell 1 is turned to the side of body of heater 8.After discharging silicon material, above-mentioned parts can be rotated around optical axis 9, finally by stretching out of extensible member 5, bell 1 be covered again on body of heater 8.
The axle sleeve 10 provided in the present embodiment is articulated and connected with connecting arm 3, and being articulated and connected of extensible member 5 two ends can be realized by jointed shaft, such as, realized by jointed shaft 4 between extensible member 5 and connecting arm 3.What certainly realize above-mentioned hinged relationship is not limited to jointed shaft, can also be other parts.
In prior art by optical axis by bell jack-up, in the upper charging polycrystalline furnace provided in the present embodiment, optical axis 9 plays the center of support rotating, and what be connected with the bell 1 of upper charging polycrystalline furnace is the axle sleeve 10 be set on optical axis 9.Certainly no matter adopt optical axis 9 as the center of support rotating, or adopt axle sleeve the same as prior art is as the center of support rotating, can the present invention be realized, as long as the parts such as rotation seat, connecting arm are connected with optical axis, realize optical axis and rotate in axle sleeve.
The core improvement of the upper charging polycrystalline furnace provided in the embodiment of the present invention is: adopt lever principle to be dug by bell 1, along with bell 1 is dug, the distance that its distance of centre of gravity supports the axle sleeve 10 of its upset reduces, namely gravity reduces relative to the arm of force of axle sleeve 10, reduce the moment of flexure of bell 1 action of gravity on axle sleeve 10, and then reduce the bending of axle sleeve 10, reduce the frictional force between optical axis 9 and axle sleeve 10, ensure that the rising that bell 1 is stable.
In the upper charging polycrystalline furnace that the embodiment of the present invention provides, bell 1 can be dug the state with the fire door place plane orthogonal of body of heater 8, now whole bell 1 is in directly over axle sleeve 10, center of gravity also just overlaps with the axis of axle sleeve 10 substantially, now the moment of flexure of whole bell 1 gravity generation is minimum, make the frictional force between optical axis 9 and axle sleeve 10 minimum, ensure that the rising that bell 1 is more stable.
In the upper charging polycrystalline furnace that the present embodiment provides, optical axis 9 is arranged on the outside of body of heater 8, can be set directly on the outer wall of body of heater 8, also can be arranged on the bracing frame 7 of body of heater 8.Concrete, the outside of described body of heater 8 is provided with some bracing frames 7, and optical axis 9 is arranged on one of them bracing frame 7.Preferably, above-mentioned some bracing frames 7 are evenly distributed on described body of heater 8, and the quantity of concrete bracing frame 7 is three (as shown in Figure 1), and the quantity of certainly concrete bracing frame 7 is not limited to this.
The effect playing lever of above-mentioned connecting arm 3, bell 1 is connected to one end of connecting arm 3, and the rotation along with connecting arm 3 achieves digging of bell 1.In order to optimize technique scheme further, above-mentioned bell 1 is also provided with the stiffening web 2 be connected with connecting arm 3, the connection being arranged so that connecting arm 3 and bell 1 of stiffening web 2 is more stable, firm.Preferably, above-mentioned bell 1 is provided with many stiffening webs 2.Please refer to accompanying drawing 2, two stiffening webs 2 have been shown in the present embodiment Fig. 2, the connecting arm 3 in the present embodiment is symmetrical structure, and two stiffening webs 2 are symmetrically distributed in the symmetric line both sides of connecting arm 3.More preferred, one end that the distance between above-mentioned two stiffening webs 2 is connected with connecting arm 3 from it increases gradually towards the other end.This kind is similar to lambdoid distribution, adds the booster action of stiffening web 2, further increases the stability that bell 1 is connected with connecting arm 3.
Above-mentioned stiffening web 2 is arranged porose, on the one hand, the weight of bell 1 can be reduced; On the other hand, hole can make the water-cooled tube, tunger tube, cable etc. be arranged on bell 1 pass this some holes, facilitates the layout to pipeline, circuit.Preferably, above-mentioned stiffening web 2 is provided with some amount and pore size not wait hole.Certain above-mentioned stiffening web 2 can also start there is draw-in groove, also can play the location to pipeline and circuit, layout effect.
The rotation seat 6 be connected with axle sleeve 10 in the present embodiment can be connected with axle sleeve 10 by web member, the connection both also can being realized by techniques such as welding.Preferably, above-mentioned axle sleeve 10 is integral type structure with rotation seat 6, facilitates the assembling capacity of whole upper charging polycrystalline furnace, improves efficiency of assembling.
The function of the extensible member 5 in the present embodiment is by the end jack-up of connecting arm 3, and preferably, above-mentioned extensible member 5 is the driving arrangements such as hydro-cylinder, pneumatic cylinder or slider-crank mechanism.
In the upper charging polycrystalline furnace provided in the present embodiment, axle sleeve 10 is set on optical axis 9, and can rotate around optical axis 9, and realizing the above-mentioned structure that both rotate has multiple, such as, directly adopt hole axle to be rotatably assorted.In order to reduce the frictional force that the obstruction that produces in rotation process is rotated between the two, between above-mentioned axle sleeve 10 and optical axis 9, being provided with bearing, realizing relatively rotating between the two by the connection of bearing, facilitating the rotation of bell 1.Preferably, bearing is provided with between above-mentioned axle sleeve 10 and the two ends of optical axis 9.Preferably, above-mentioned axle sleeve 10 is as the parts supporting bell 1, and in order to reduce the power that it acts on optical axis 9 axis, the above-mentioned bottom at axle sleeve 10 and optical axis 9 is also provided with thrust bearing.Preferably, one end that above-mentioned axle sleeve 10 is connected with connecting arm 3 is provided with bearing support, the bearing being arranged on axle sleeve and optical axis top is arranged on bearing support, bearing support and connecting arm 3 hinged, and axle sleeve 10 is by being articulated and connected between the bearing support on its top and connecting arm 3.
Above-mentioned axle sleeve 10 is in the state of rotation in the process of action, and inevitably occur wearing and tearing in the process, in order to reduce wearing and tearing, extend the work-ing life of whole upper charging polycrystalline furnace, maintain easily, above-mentioned axle sleeve 10 adopts the axle sleeve manufactured by high-abrasive material.Preferably, above-mentioned axle sleeve 10 adopts copper sheathing or steel bushing.Special art breading can certainly be carried out at the friction position of the axle sleeve of mentioned kind, such as annealing process etc., improve the fastness to rubbing of this abrading section.
In above-mentioned upper charging polycrystalline furnace, preferably, the shape of cross section of body of heater 8 is circular or square.Certainly, the shape of above-mentioned body of heater 8 is not limited to this, and those skilled in the art can improve according to the shape of the situation of reality to body of heater, to meet the production of the large demand of polysilicon.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. to feed on a polycrystalline furnace, comprise body of heater (8) and bell (1), it is characterized in that, also comprise:
One end is connected to the connecting arm (3) on described bell (1);
Be arranged on the optical axis (9) in described body of heater (8) outside, it is arranged with axle sleeve (10), this axle sleeve (10) can rotate around described optical axis (9), and between the two ends being hinged on described connecting arm (3);
The rotation seat (6) be connected with described axle sleeve (10);
One end is hinged on described rotation seat (6), and the other end is hinged on the other end of described connecting arm (3), and drives described connecting arm (3) in vertical plane along the extensible member (5) that its pin joint rotates.
2. upper charging polycrystalline furnace according to claim 1, it is characterized in that, the outside of described body of heater (8) is provided with some bracing frames (7), and described optical axis (9) is arranged on one of them support frame as described above (7).
3. upper charging polycrystalline furnace according to claim 2, is characterized in that, some support frames as described above (7) are distributed on the outside of described body of heater (8), and the quantity of bracing frame is three.
4. upper charging polycrystalline furnace according to claim 1, is characterized in that, described bell (1) is also provided with the stiffening web (2) be connected with described connecting arm (3).
5. upper charging polycrystalline furnace according to claim 4, is characterized in that, (2) are provided with multiple hole to described stiffening web.
6. upper charging polycrystalline furnace according to claim 4, it is characterized in that, described stiffening web (2) is two, described connecting arm (3) is symmetrical structure, article two, described stiffening web (2) is symmetrically distributed in the symmetric line both sides of described connecting arm (3), and one end that the distance between two described stiffening webs (2) is connected with described connecting arm (3) from it increases gradually to the other end.
7. upper charging polycrystalline furnace according to claim 1, is characterized in that, described extensible member (5) is hydro-cylinder or pneumatic cylinder.
8. upper charging polycrystalline furnace according to claim 1, is characterized in that, described axle sleeve (10) and described rotation seat (6) are integral type structure.
9. upper charging polycrystalline furnace according to claim 1, it is characterized in that, one end that described axle sleeve (10) is connected with described connecting arm (3) is provided with bearing support, described bearing support and described connecting arm (3) hinged, described bearing support is provided with bearing.
10. according to the upper charging polycrystalline furnace in claim 1-9 described in any one, it is characterized in that, the shape of cross section of described body of heater (8) is circular or square.
CN201110145108.6A 2011-05-31 2011-05-31 Material-loading polycrystalline furnace CN102808218B (en)

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CN104841331A (en) * 2015-04-29 2015-08-19 浙江华彩化工有限公司 Top cover opening device of blender

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