CN219906866U - Bell lifting device for small test furnace - Google Patents
Bell lifting device for small test furnace Download PDFInfo
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- CN219906866U CN219906866U CN202321352325.7U CN202321352325U CN219906866U CN 219906866 U CN219906866 U CN 219906866U CN 202321352325 U CN202321352325 U CN 202321352325U CN 219906866 U CN219906866 U CN 219906866U
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- lifting
- bell jar
- connecting piece
- roller
- lifting mechanism
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000003028 elevating effect Effects 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 3
- 229920005591 polysilicon Polymers 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a lifting device for a bell jar of a small test furnace, which relates to the technical field of polysilicon production equipment and mainly aims to decompose axial load and radial load generated by the bell jar and overcome the axial load and the radial load respectively so as to avoid the inclination of the bell jar in the lifting process. The main technical scheme of the utility model is as follows: the utility model provides a small test furnace bell jar elevating gear, this device includes: the device comprises a vertical sliding rail, a sliding block and a lifting part; the sliding block is connected to the bell jar; the lifting part comprises a lifting mechanism and a connecting piece, the lifting mechanism and the sliding block are respectively located on opposite sides of the vertical sliding rail, a lifting rod of the lifting mechanism is connected to one end of the connecting piece, the middle of the connecting piece is connected to the sliding block, one end inner side of the connecting piece is rotationally connected to a first roller, the other end inner side of the connecting piece is rotationally connected to a second roller, the first roller and the second roller are respectively contacted with opposite sides of the vertical sliding rail, and the first roller is higher than the second roller.
Description
Technical Field
The utility model relates to the technical field of polysilicon production equipment, in particular to a bell jar lifting device of a small test furnace.
Background
As a test device for the polysilicon production process, the small test furnace is required to be frequently disassembled and assembled like the reduction furnace, the bell jar of the small test furnace is positioned in a closed space and cannot be lifted by using a crane, and a lifting device special for the small test furnace is required to be equipped because clean production requires no lubrication operation.
When the small test furnace lifting device is used, after the bell jar is lifted, the axial load and the radial load exist on the cylinder, the phenomena that the bell jar is inclined, the bell jar is blocked and cannot lift and the like often occur, and unsafe factors of objects exist.
Disclosure of Invention
Therefore, the embodiment of the utility model provides a lifting device for a bell jar of a small test furnace, which is mainly used for decomposing axial load and radial load generated by the bell jar and respectively overcoming the axial load and the radial load so as to avoid the inclination of the bell jar in the lifting process.
In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:
the embodiment of the utility model provides a lifting device for a bell jar of a small test furnace, which comprises the following components: the device comprises a vertical sliding rail, a sliding block and a lifting part;
the sliding block is connected to the bell jar;
the lifting part comprises a lifting mechanism and a connecting piece, the lifting mechanism and the sliding block are respectively located on opposite sides of the vertical sliding rail, a lifting rod of the lifting mechanism is connected to one end of the connecting piece, the middle of the connecting piece is connected to the sliding block, one end inner side of the connecting piece is rotationally connected to a first roller, the other end inner side of the connecting piece is rotationally connected to a second roller, the first roller and the second roller are respectively contacted with opposite sides of the vertical sliding rail, and the first roller is higher than the second roller.
The aim and the technical problems of the utility model can be further realized by adopting the following technical measures.
Optionally, the linking piece includes first linking piece and second linking piece, first linking piece one end with the relative medial surface of second linking piece one end rotates respectively to be connected in first gyro wheel, the other end of first linking piece with the relative medial surface of second linking piece other end rotates respectively to be connected in the second gyro wheel.
Optionally, the lifting mechanism further comprises a bearing plate, opposite ends of the bearing plate are respectively and fixedly connected to one end of the first connecting piece and one end of the second connecting piece, and the middle of the bearing plate is connected to a lifting rod of the lifting mechanism.
Optionally, the lifting mechanism further comprises a screw rod and a supporting plate, wherein the supporting plate is fixedly connected to the upper end of the lifting rod of the lifting mechanism, the lower end of the screw rod is fixedly connected to the bearing plate, the upper end of the screw rod penetrates through the through hole of the supporting plate and is self-locked through a back nut, and the position relationship between the screw rod and the supporting plate is fixed.
Optionally, the number of the screws is two, and the lower ends of the two screws are respectively and fixedly connected with the opposite ends of the bearing plate.
Optionally, the lifting device further comprises a frame, and the vertical sliding rail and the lifting mechanism are respectively and fixedly installed on the frame.
Optionally, the lifting mechanism further comprises a limiting plate, one end of the limiting plate is fixedly connected to the upper end of the lifting rod of the lifting mechanism, a first limiting hole is formed in the other end of the limiting plate, a second limiting hole is formed in the upper end of the frame, and the first limiting hole corresponds to the second limiting hole and is used for inserting a limiting pin.
Optionally, the device further comprises a reinforcing rib plate, and the reinforcing rib plate is fixedly connected to the vertical sliding rail.
By means of the technical scheme, the utility model has at least the following advantages:
when lifting rod of elevating system risees, drive the linking piece and rise, first gyro wheel and second gyro wheel contact respectively in the opposite side of vertical slide rail, bell jar and slider apply the moment that is close to vertical slide rail to the linking piece, and first gyro wheel is higher than the second gyro wheel, linking piece transmission moment makes first gyro wheel and second gyro wheel paste the opposite side of vertical slide rail in step, the slide rail forms radial support to the linking piece, the radial load of slider applied to linking piece has been offset, avoid slider and bell jar to incline in vertical direction, the lifter only need overcome the axial load of linking piece, avoid the lifter to receive radial load and skew for elevating system itself, avoid elevating system to take place mechanical structure damage.
The device shields the radial load of the bell jar through the vertical sliding rail, so that the lifting mechanism only needs to overcome the axial load, and the service life of the lifting mechanism is prolonged.
Drawings
Fig. 1 is a schematic diagram of a first state of a bell jar lifting device of a small test furnace according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a second state of a bell jar lifting device of a small test furnace according to an embodiment of the present utility model;
FIG. 3 is a front view of a slider;
FIG. 4 is an enlarged view of portion A of FIG. 1;
fig. 5 is an enlarged view of a portion B in fig. 1.
Reference numerals in the drawings of the specification include: the device comprises a vertical sliding rail 1, a sliding block 2, a bell jar 3, a lifting mechanism 4, a lifting rod 6, a connecting piece 7, a first roller 8, a second roller 9, a first connecting piece 701, a second connecting piece 702, a bearing plate 703, a bell jar 10, a screw 11, a supporting plate 12, a back nut 13, a frame 14, a chassis 15, a limiting plate 16, a first limiting hole 17 and a second limiting hole 18.
Detailed Description
In order to further describe the technical means and effects adopted for achieving the preset aim of the utility model, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the utility model with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The utility model is described in further detail below with reference to the drawings and examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the utility model provides a bell jar lifting device for a small test furnace, which includes: the device comprises a vertical sliding rail 1, a sliding block 2 and a lifting part;
the sliding block 2 is connected to the bell jar 3;
the lifting part comprises a lifting mechanism 4 and a connecting piece 7, the lifting mechanism 4 and the sliding block 2 are respectively located on opposite sides of the vertical sliding rail 1, a lifting rod 6 of the lifting mechanism 4 is connected to one end of the connecting piece 7, the middle part of the connecting piece 7 is connected to the sliding block 2, one end inner side of the connecting piece 7 is rotationally connected to a first roller 8, the other end inner side of the connecting piece 7 is rotationally connected to a second roller 9, the first roller 8 and the second roller 9 are respectively contacted with opposite sides of the vertical sliding rail 1, and the first roller 8 is higher than the second roller 9.
The working process of the bell jar lifting device of the small test furnace is as follows:
when the lifting rod 6 of the lifting mechanism 4 is lifted to drive the connecting piece 7 to lift, the first roller 8 and the second roller 9 are respectively contacted with the opposite side surfaces of the vertical sliding rail 1, the bell jar 3 and the sliding block 2 apply moment close to the vertical sliding rail 1 to the connecting piece 7, the first roller 8 is higher than the second roller 9, and the connecting piece 7 transmits moment, so that the first roller 8 and the second roller 9 are synchronously attached to the opposite side surfaces of the vertical sliding rail 1, the sliding rail forms radial support to the connecting piece 7, the radial load applied to the connecting piece 7 by the sliding block 2 is counteracted, the sliding block 2 and the bell jar 3 are prevented from tilting in the vertical direction, the lifting rod 6 only needs to overcome the axial load of the connecting piece 7, the lifting rod 6 is prevented from being deflected relative to the lifting mechanism 4 by the radial load, and the mechanical structural damage of the lifting mechanism 4 is prevented; the first roller 8 and the second roller 9 roll relative to the surface of the vertical sliding rail 1, so that the lifting flexibility of the bell jar 3 is improved.
In the technical scheme of the utility model, the radial load of the bell jar 3 is shielded by the vertical sliding rail 1, so that the lifting mechanism 4 only needs to overcome the axial load, and the service life of the lifting mechanism 4 is prolonged.
Specifically, elevating system 4 adopts the cylinder structure, and original bell jar 3 elevating equipment does not have vertical slide rail 1, and it uses the inside piston of cylinder to promote slider 2 action, and the inside pearl dish roll through the linkage of slider 2 needs to have good lubrication, has corrosive gas because in the operational environment, simultaneously because do not have vertical slide rail 1, cylinder structure both overcomes axial load, also overcomes radial load, damages slider 2 easily, leads to the cylinder to block.
Specifically, the opposite side surfaces of the vertical sliding rail 1 are respectively provided with a vertical sliding groove, the first roller 8 and the second roller 9 roll along the vertical sliding grooves respectively, a constraint track is formed for the rolling of the rollers, the degree of freedom of the sliding block 2 is constrained, and the rollers are ensured to roll along the vertical direction.
In the embodiment shown in fig. 3, the engaging member 7 includes a first engaging member 701 and a second engaging member 702, inner sides opposite to one end of the first engaging member 701 and one end of the second engaging member 702 are respectively rotatably connected to the first roller 8, and inner sides opposite to the other end of the first engaging member 701 and the other end of the second engaging member 702 are respectively rotatably connected to the second roller 9.
In this embodiment, specifically, the first engaging member 701 and the second engaging member 702 are respectively welded to opposite sides of the slider 2, and the first engaging member 701 and the second engaging member 702 drive the slider 2 from two sides of the slider 2, so that the slider 2 is kept stable during lifting.
As shown in fig. 3, in the embodiment, the lifting device further includes a carrying plate 703, opposite ends of the carrying plate 703 are fixedly connected to one end of the first connecting member 701 and one end of the second connecting member 702, respectively, and a middle portion of the carrying plate 703 is connected to the lifting rod 6 of the lifting mechanism 4.
In this embodiment, opposite ends of the bearing plate 703 are respectively welded to one end of the first connecting member 701 and one end of the second connecting member 702, so that the first connecting member 701 and the second connecting member 702 are integrally formed, and stability of the slider 2 and the bell jar 3 is further ensured in the process of pulling the slider 2 to lift.
As shown in fig. 3, in a specific embodiment, the lifting mechanism further comprises a screw 11 and a support plate 12, the support plate 12 is fixedly connected to the upper end of the lifting rod 6 of the lifting mechanism 4, the lower end of the screw 11 is fixedly connected to the bearing plate 703, the upper end of the screw 11 penetrates through the through hole of the support plate 12 and is self-locked by a back nut 13, so that the positional relationship between the screw 11 and the support plate 12 is fixed.
In the present embodiment, specifically, the support plate 12 is also fixed to the upper end of the lifting rod 6 by a nut, the upper end of the screw 11 is self-locked and fixed by a back nut 13, and the position of the screw 11 relative to the support plate 12 can be adjusted by rotating the back nut 13, so that the limit position of the lowest end of the lifting track of the bell jar 3 can be properly adjusted.
In the specific embodiment, as shown in fig. 3, the number of the screws 11 is two, and the lower ends of the two screws 11 are respectively and fixedly connected to opposite ends of the bearing plate 703.
In this embodiment, specifically, the supporting plate 12 is herringbone, the upper end of the lifting rod 6 of the lifting mechanism 4 is fixedly connected to one end point of the supporting plate 12, and the upper ends of the two screw rods 11 are respectively connected to the other two end points of the supporting plate 12, so that the two screw rods 11 are symmetrically arranged on both sides of the lifting rod 6.
As shown in fig. 1 and 2, in the specific embodiment, the lifting device further includes a frame 14, and the vertical sliding rail 1 and the lifting mechanism 4 are respectively fixedly mounted on the frame 14.
In this embodiment, specifically, the upper end and the lower end of the vertical sliding rail 1 are respectively mounted on the frame 14 through bolts, the lower end of the lifting mechanism 4 is mounted on the frame 14 through bolts, the chassis 15 of the small test furnace is fixedly mounted on the lower end of the frame 14, and the relative positions of the chassis 15, the lifting mechanism 4 and the vertical sliding rail 1 are ensured to be unchanged.
As shown in fig. 1 and 2, in a specific embodiment, the lifting mechanism further includes a limiting plate 16, one end of the limiting plate 16 is fixedly connected to the upper end of the lifting rod 6 of the lifting mechanism 4, the other end of the limiting plate 16 is provided with a first limiting hole 17, the upper end of the stand 14 is provided with a second limiting hole 18, and the first limiting hole 17 corresponds to the second limiting hole 18 and is used for inserting a limiting pin.
In this embodiment, specifically, when the lifting rod 6 of the lifting mechanism 4 rises to the highest point, and the first limiting hole 17 corresponds to the second limiting hole 18, a limiting pin is inserted, so that even if the lifting mechanism 4 fails in structure, the lifting rod 6 leaks air after being lifted in place, the lifting rod 6 cannot automatically descend, and accidents during small maintenance and trial furnace are avoided.
In a specific embodiment, the vertical sliding rail device further comprises a reinforcing rib plate, and the reinforcing rib plate is fixedly connected to the vertical sliding rail 1.
In this embodiment, specifically, deep floor adopts stainless steel angle bar, and deep floor welds in the side of vertical slide rail 1, and deep floor and elevating system 4 are located vertical slide rail 1's same side, and the structural rigidity of reinforcing vertical slide rail 1, deep floor can not interfere slider 2 along vertical slide rail 1 reciprocates.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a little examination stove bell jar elevating gear which characterized in that includes:
a vertical slide rail;
the sliding block is connected to the bell jar;
lifting part, lifting part includes elevating system and linking piece, elevating system with the slider is located respectively the opposite side of vertical slide rail, elevating system's lifter connect in the one end of linking piece, the middle part of linking piece connect in the slider, the inboard rotation of one end of linking piece is connected in first gyro wheel, the inboard rotation of the other end of linking piece is connected in the second gyro wheel, first gyro wheel with the second gyro wheel contact respectively in the opposite side of vertical slide rail, first gyro wheel is higher than the second gyro wheel.
2. The lifting device for the bell jar of the small test furnace according to claim 1, wherein,
the connecting piece comprises a first connecting piece and a second connecting piece, wherein one end of the first connecting piece and the inner side surface opposite to one end of the second connecting piece are respectively connected with the first roller in a rotating mode, and the other end of the first connecting piece and the inner side surface opposite to the other end of the second connecting piece are respectively connected with the second roller in a rotating mode.
3. The lifting device for the bell jar of the small test furnace according to claim 2, wherein,
the lifting mechanism further comprises a bearing plate, opposite ends of the bearing plate are respectively and fixedly connected to one end of the first connecting piece and one end of the second connecting piece, and the middle of the bearing plate is connected to a lifting rod of the lifting mechanism.
4. The bell jar lifting device of claim 3, wherein,
the lifting mechanism is characterized by further comprising a screw rod and a supporting plate, wherein the supporting plate is fixedly connected to the upper end of a lifting rod of the lifting mechanism, the lower end of the screw rod is fixedly connected to the bearing plate, the upper end of the screw rod penetrates through the through hole of the supporting plate and is self-locked through a back nut, and the position relationship between the screw rod and the supporting plate is fixed.
5. The lifting device for the bell jar of the small test furnace according to claim 4, wherein,
the number of the screws is two, and the lower ends of the two screws are respectively and fixedly connected with the opposite ends of the bearing plate.
6. The bell jar lifting device of any one of claims 1 to 5, wherein,
the lifting mechanism is characterized by further comprising a frame, wherein the vertical sliding rail and the lifting mechanism are respectively and fixedly installed on the frame.
7. The lifting device for the bell jar of the small test furnace according to claim 6, wherein,
still include the limiting plate, the one end fixed connection of limiting plate in elevating system's lifter's upper end, the other end of limiting plate is equipped with first spacing hole, the upper end of frame is equipped with the second spacing hole, first spacing hole corresponds the second spacing hole for insert the spacer pin.
8. The bell jar lifting device of any one of claims 1 to 5, wherein,
the vertical sliding rail is characterized by further comprising reinforcing rib plates, and the reinforcing rib plates are fixedly connected to the vertical sliding rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352325.7U CN219906866U (en) | 2023-05-31 | 2023-05-31 | Bell lifting device for small test furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321352325.7U CN219906866U (en) | 2023-05-31 | 2023-05-31 | Bell lifting device for small test furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219906866U true CN219906866U (en) | 2023-10-27 |
Family
ID=88441203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321352325.7U Active CN219906866U (en) | 2023-05-31 | 2023-05-31 | Bell lifting device for small test furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219906866U (en) |
-
2023
- 2023-05-31 CN CN202321352325.7U patent/CN219906866U/en active Active
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