CN201338927Y - Stacked flexible rack type lifting device - Google Patents
Stacked flexible rack type lifting device Download PDFInfo
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- CN201338927Y CN201338927Y CNU2008201680892U CN200820168089U CN201338927Y CN 201338927 Y CN201338927 Y CN 201338927Y CN U2008201680892 U CNU2008201680892 U CN U2008201680892U CN 200820168089 U CN200820168089 U CN 200820168089U CN 201338927 Y CN201338927 Y CN 201338927Y
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- gear
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- gear piece
- flexible rack
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Abstract
The utility model relates to a stacked flexible rack type lifting device, which comprises a fixed support, a drive device, a lifting bracket and a flexible rack used for jacking up the lifting bracket. A gear is arranged at the upper end of the fixed support; the gear is connected with the drive device; the flexible rack is positioned in the fixed bracket; the fixed bracket is provided with a guide rail; the upper part of the guide rail is in a vertical direction and is provided with an arc extension section to the horizontal position; the flexible rack is provided with a sliding wheel matched with the guide rail; the flexible rack is a rigid chain formed by hinging a plurality of blocks of tooth blocks; one side of each tooth block is of a tooth shape matched with the gear; adjacent teeth of adjacent tooth blocks are spliced into a complete tooth shape; the adjacent tooth blocks are hinged on one side of the tooth block without tooth shape; and the tooth blocks are stacked by sheet-shaped tooth slices. The utility model provides the stacked flexible rack type lifting device with short processing cycle, good exchangeability and maintenance cost reduction.
Description
Technical field
The utility model relates to a kind of jacking system.
Background technology
The use of jacking system in all trades and professions is commonplace, as the bay-lift in heavy industry, the storage industry, the bay-lift in the stage, lifting orchestra etc.Jacking system commonly used has: steel wire rope type, chain-type, fluid pressure type, rack-and-pinion, spiral etc.
As the patent No. is 200420020574.7, denomination of invention is the Chinese utility model patent of Flexible Rack Lifting Device, a kind of Flexible Rack Lifting Device is disclosed, comprise the lifting mechanism that is fixed in ground-surface fixed support, actuating device, lifting support, is used for the described lifting support of jacking, described lifting mechanism is installed in the described fixed support, described lifting mechanism comprises that described rigid chain and described lifting support are affixed by the hinged rigid chain that forms of more piece tooth bar, guide rail; Described support bracket fastened upper end is equipped with the gear that cooperates with described tooth bar, and described gear is driven by the actuating device in the actuating device; Described fixed support is provided with a guide rail, the top of guide rail in vertical direction, and the extension that is provided with arc all is provided with the pulley that cooperates with described guide rail to level attitude on described every joint tooth bar.
The defective of its existence is: at first, in order to guarantee the rigidity requirement of tooth bar under the heavy burden situation, tooth bar must have cooresponding thickness, and the profile of tooth on the tooth bar is processed by the milling cutter on the lathe, under the prior art condition, can only manually process one by one.Not only the process-cycle long, and artificial produces the error of individual profile of tooth unavoidably, the dimensional uniformity between each tooth bar is poor, it is unified that profile of tooth can't keep.The mating part of tooth bar up and down, following tooth bar need carry out adaptive according to the profile of tooth of upper rack lower end, the profile of tooth of tooth bar all will be decided according to the concrete profile of tooth of the upper rack of being accepted under each, therefore, for every chain, every toothed rack all is unique, do not have interchangeability, in case certain toothed rack is damaged, and then needs to change whole tooth bars, the maintenance cost height.
Secondly, the precision of the attaching parts between the tooth bar is grasped difficult, and poor rigidity is yielding.Tooth bar is hinged, pipe link is installed in the upper rack lower end, pipe link also is installed in the upper end of following tooth bar, two pipe links connect by bearing pin, undertaken hinged by joint outer part, be easy to generate displacement error, up and down the quality of fit of tooth bar require high, assembly difficulty is high, in addition the rigidity of connecting portion a little less than, be easy to generate distortion in the use, directly influence the precision of whole chain.
The utility model content
For the deficiency that the tooth bar process-cycle is long, interchangeability is poor, maintenance cost is high that overcomes jacking system in the prior art, the utility model provides a kind of reduces the process-cycle, interchangeability is good, the stacked flexible rack gear type elevating gear of minimizing maintenance cost.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of stacked flexible rack gear type elevating gear comprises fixed support, actuating device, lifting support and the flexible rack that is used for the described lifting support of jacking, and gear is installed in described support bracket fastened upper end, and described gear is connected with actuating device; Described flexible rack is located in the described fixed support, described fixed support is provided with a guide rail, the top of guide rail in vertical direction, and the extension that is provided with arc is to level attitude, on described flexible rack, be provided with the pulley that cooperates with described guide rail, described flexible rack is the hinged rigid chain that forms of polylith tooth piece, one side of described tooth piece is the profile of tooth with described gear mesh, the complete profile of tooth that the adjacent teeth amalgamation of adjacent teeth piece becomes, the adjacent teeth piece is hinged in a side of no profile of tooth, and described tooth piece is formed by stacking by laminar gear piece.
As preferred a kind of scheme: the shape of the upper/lower terminal face of described gear piece is meshing with each other, described tooth piece is provided with formed positive gear piece by described gear piece forward and formed anti-gear piece fixed formation that superpose oppositely is set, described positive gear piece has male part up, described anti-gear piece below male part is arranged, adjacent tooth piece has putting in order of identical positive and negative gear piece; The positive gear piece of the tooth piece of below and the anti-gear piece of last square gear block are hinged.
As preferred another kind of scheme: described gear piece one side two ends all are half profile of tooth.
As preferred another scheme: the middle part of described gear piece has mounting hole, and described mounting hole is with the profile of tooth line of centers on the described gear piece top hole symmetric arrangement that is as the criterion, and the center of circle of described bearing pin mounting hole is positioned on the extension line of described gear piece top castellated edge line.
Further, be provided with supplementary plate between described each gear piece, the profile of tooth on described supplementary plate top is identical with the profile of tooth of described gear piece.
Described gear piece has male part up, gear piece below be provided with inner fovea part, be provided with supplementary plate between described each gear piece, the profile of tooth on described supplementary plate top is identical with the profile of tooth of described gear piece, the both sides of described supplementary plate are equipped with inner fovea part, and the inner fovea part of described supplementary plate is identical with the inner fovea part of described gear piece.
Described positive gear piece below inner fovea part is arranged, be provided with supplementary plate between described each gear piece, the profile of tooth on described supplementary plate top is identical with the profile of tooth of described gear piece, and the both sides of described supplementary plate are equipped with inner fovea part, the inner fovea part of described supplementary plate is identical with the inner fovea part of described gear piece
Mounting hole on the described supplementary plate is identical with position of mounting hole on the described gear piece.
Technical conceive of the present utility model is: the defective that artificial milling cutter processing exists at tooth-shape structure in the existing tooth bar, we have designed the tooth piece that is formed by stacking by laminar gear piece, gear piece is wherein processed profile of tooth by punch press, and punch press processing has quick, high-precision characteristics.
The process of processing is: at first, determine the mould of gear piece, the tooth-shape structure by punch press processing gear piece now for prior art, can shorten the process-cycle greatly, improves the working accuracy of tooth-shape structure; Then, gear piece is formed by stacking, mounting hole is set on gear piece usually, riveted joint gets final product mutually; To go up the lower tooth piece again and be hinged, promptly form flexible rack.
In order to make the tooth piece itself have hinge-point, design as follows: the top of gear piece is provided with inner fovea part, the below is provided with male part, and the shape of described inner fovea part and described male part is adaptive, can be meshing with each other, be provided with the bearing pin mounting hole in described male part, pros and cons installation mutually between the neighbouring gear piece.
In the above-mentioned structure, the shape of positive and negative adjacent gear piece can be inequality, also can be identical, and the angle from processing if the mould of positive and negative gear piece is identical, as long as open a secondary mould, can reduce tooling cost.For positive gear piece and anti-gear piece are of similar shape, design as follows: described gear piece both upper ends thereof is half profile of tooth, the middle part of described gear piece has mounting hole, profile of tooth line of centers with described gear piece top is as the criterion, the mounting hole symmetric arrangement, the center of circle of described bearing pin mounting hole is positioned on the extension line of described gear piece top castellated edge line, and the mounting hole of promptly positive gear piece and adjacent anti-gear piece is corresponding one by one, and the bearing pin mounting hole of the bearing pin mounting hole of commutating tooth piece and adjacent anti-tooth piece is mapped.
Supplementary plate is set between gear piece, can guarantees the assembly clearance between the adjacent teeth piece.
The beneficial effects of the utility model mainly show: 1, minimizing process-cycle, good, the minimizing maintenance cost of interchangeability; 2, the good rigidly of the no-float of tooth bar, whole chain up and down; 3, reduced cost.
Description of drawings
Fig. 1 is the utility model Flexible Rack Lifting Device constructional drawing.
Fig. 2 is the drive connection scheme drawing of actuating device and gear.
Fig. 3 is the annexation scheme drawing of the tooth piece of embodiment 2.
Fig. 4 is the scheme drawing of the positive gear piece of embodiment 2.
Fig. 5 is the scheme drawing of the anti-gear piece of embodiment 2.
Fig. 6 is the annexation scheme drawing of the tooth piece of embodiment 3.
Fig. 7 is the A-A cutaway view of Fig. 6.
Fig. 8 is the scheme drawing of the gear piece of embodiment 3.
Fig. 9 is the scheme drawing of supplementary plate.
Figure 10 is the assembling scheme drawing of gear piece and supplementary plate.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
See figures.1.and.2, a kind of stacked flexible rack gear type elevating gear, comprise fixed support 1, actuating device 2, lifting support 3 and the flexible rack 4 that is used for the described lifting support of jacking, gear 5 is installed in the upper end of described fixed support 1, and described gear 5 is connected with actuating device 2; Described flexible rack 4 is located in the described fixed support 1, described fixed support 1 is provided with a guide rail 6, the top of guide rail 6 in vertical direction, and the extension that is provided with arc is to level attitude, on described flexible rack 4, be provided with the pulley 7 that cooperates with described guide rail, described flexible rack 4 is the polylith tooth piece 8 hinged rigid chains that form, one side of described tooth piece 8 is the profile of tooth with described gear mesh, the complete profile of tooth that the adjacent teeth amalgamation of adjacent teeth piece becomes, the adjacent teeth piece is hinged in a side of no profile of tooth, and described tooth piece 8 is formed by stacking by laminar gear piece 9.
Described actuating device is a drive motor 2, and the output shaft of described drive motor 2 connects speed reduction gearing, and the output shaft of speed reduction gearing is installed driving chain wheel, and described driving chain wheel is connected with intermediate chain wheel 13 by chain, described intermediate chain wheel 13 and gear 5 engagements.
Be separately installed with guiding mechanism around the described lifting support, described guiding mechanism is guided way 14 and sliding sleeve 15, is provided with the sliding sleeve 15 that cooperates with described guided way 14 around the lifting support 3.
The course of processing of present embodiment is: at first, determine the mould of gear piece 9, the tooth-shape structure by punch press processing gear piece now for prior art, can shorten the process-cycle greatly, improves the working accuracy of tooth-shape structure; Then, gear piece 9 is formed by stacking, on gear piece 9 mounting hole is set usually, riveted joint gets final product mutually; To go up lower tooth piece 8 again and be hinged, promptly form flexible rack.The thickness of gear piece is 3mm in the present embodiment.
The working process of present embodiment is:
When lifting support 3 is positioned at low level and need rises, starting drive motor just changes, drive sprocket wheel 13 forward rotation, sprocket wheel 13 driven gears 5 forward rotation, the tooth-shape structure engagement owing to gear 5 and on the tooth piece 8 on being positioned at, drive flexible rack 4 upward movements, upwards jack-up lifting support 3 is subjected to the direction restriction of guide rail 6, is plumbness with the tooth piece of gear mesh, following tooth piece is followed successively by arc, and carries out the transition to horizontality always;
When lifting support 3 is positioned at high-order need decline, start the drive motor counter-rotating, drive sprocket wheel 13 backward rotation, sprocket wheel 13 driven gears 5 backward rotation, because the tooth-shape structure engagement on gear and the tooth piece that is positioned at drives flexible rack and moves downward, and drives lifting support and descends.
With reference to Fig. 1-Fig. 5, the shape of the upper/lower terminal face of the gear piece 9 of present embodiment is meshing with each other, described tooth piece 8 is provided with formed positive gear piece by described gear piece forward and formed anti-gear piece affixed formation that superpose oppositely is set, adjacent tooth piece has putting in order of identical positive and negative gear piece, described positive gear piece has male part up, described anti-gear piece below male part is arranged, the positive gear piece of the tooth piece of below and the adjacent anti-gear piece of going up square gear block are hinged.Other structures of present embodiment are identical with embodiment 1.
In the course of processing of present embodiment, need to determine two molds of positive gear piece and anti-gear piece, process the tooth-shape structure of gear piece respectively by punch press, then, according to the ordering of setting positive gear piece and anti-gear piece are formed by stacking, for example always have five layers of gear piece, be positioned at the top two-layer for positive gear piece, be positioned at the two-layer for anti-gear piece of below.
For present embodiment, the complete profile of tooth that the adjacent teeth amalgamation of described gear piece 9 above and belows becomes, for example Shang Fang adjacent teeth is 1/4th teeth, the adjacent teeth of below is 3/4ths teeth; Can certainly for: the adjacent teeth of top is 1/2nd teeth, and the adjacent teeth of below is 1/2nd teeth; Or: the adjacent teeth of top is 3/4ths teeth, and the adjacent teeth of below is 1/4th teeth.
The working process of present embodiment is identical with embodiment 1.
With reference to Fig. 1, Fig. 2, Fig. 6-Fig. 8, the gear piece 9 one side two ends of present embodiment all are half profile of tooth.The middle part of described gear piece 9 has mounting hole, described mounting hole is with the profile of tooth line of centers on the described gear piece top hole symmetric arrangement that is as the criterion, the center of circle of described pin shaft hole 10 is positioned on the extension line of described gear piece top castellated edge line, on the pin shaft hole of the pin shaft hole of the positive gear piece of the tooth piece of below and the adjacent upward anti-gear piece of square gear block bearing pin 11 is installed.
Other structures of present embodiment are all identical with embodiment 2.
In the present embodiment, during stack, the mounting hole of positive gear piece and adjacent anti-gear piece is corresponding one by one, and the bearing pin mounting hole of the bearing pin mounting hole of commutating tooth piece and adjacent anti-tooth piece is mapped, and promptly positive and negative gear piece has identical mould.
The course of processing of present embodiment only need determine that a mold gets final product, and other the course of processing of present embodiment is all identical with embodiment 2 with working process.
With reference to Fig. 1, Fig. 2, Fig. 9 and Figure 10, be provided with supplementary plate 12 between each gear piece 9 of present embodiment, the profile of tooth on described supplementary plate 12 tops is identical with the profile of tooth of described gear piece 9.Mounting hole on the described supplementary plate is identical with position of mounting hole on the described gear piece.
All the other structures of present embodiment, the course of processing is all identical with embodiment 1 with working process.
With reference to Fig. 1-Fig. 5, and Fig. 9 and Figure 10, the positive gear piece of present embodiment below be provided with inner fovea part, be provided with supplementary plate 12 between described each gear piece, the profile of tooth on described supplementary plate 12 tops is identical with the profile of tooth of described gear piece, the both sides of described supplementary plate 12 are equipped with inner fovea part, and the inner fovea part of described supplementary plate 2 is identical with the inner fovea part of positive gear piece.
Mounting hole on the described supplementary plate is identical with position of mounting hole on the described gear piece.
All the other structures of present embodiment, the course of processing is all identical with embodiment 2 with working process.
With reference to Fig. 1, Fig. 2, Fig. 6-Figure 10, the positive gear piece of present embodiment below be provided with inner fovea part, be provided with supplementary plate 12 between described each gear piece, the profile of tooth on described supplementary plate 12 tops is identical with the profile of tooth of described gear piece, the both sides of described supplementary plate 12 are equipped with inner fovea part, and the inner fovea part of described supplementary plate 2 is identical with the inner fovea part of positive gear piece.
Mounting hole on the described supplementary plate is identical with position of mounting hole on the described gear piece.
All the other structures of present embodiment, the course of processing is all identical with embodiment 3 with working process.
Claims (7)
1, a kind of stacked flexible rack gear type elevating gear comprises fixed support, actuating device, lifting support and the flexible rack that is used for the described lifting support of jacking, and gear is installed in described support bracket fastened upper end, and described gear is connected with actuating device; Described flexible rack is located in the described fixed support, described fixed support is provided with a guide rail, the top of guide rail in vertical direction, and the extension that is provided with arc is to level attitude, on described flexible rack, be provided with the pulley that cooperates with described guide rail, described flexible rack is the hinged rigid chain that forms of polylith tooth piece, one side of described tooth piece is the profile of tooth with described gear mesh, the complete profile of tooth that the adjacent teeth amalgamation of adjacent teeth piece becomes, the adjacent teeth piece is hinged in a side of no profile of tooth, it is characterized in that: described tooth piece is formed by stacking by laminar gear piece.
2, stacked flexible rack gear type elevating gear as claimed in claim 1, it is characterized in that: the shape of the upper/lower terminal face of described gear piece is meshing with each other, described tooth piece is provided with formed positive gear piece by described gear piece forward and formed anti-gear piece affixed formation that superpose oppositely is set, adjacent tooth piece has putting in order of identical positive and negative gear piece, described positive gear piece has male part up, described anti-gear piece below male part is arranged, the positive gear piece of the tooth piece of below and the adjacent anti-gear piece of going up square gear block are hinged.
3, stacked flexible rack gear type elevating gear as claimed in claim 2 is characterized in that: described gear piece one side two ends all are half profile of tooth.
4, stacked flexible rack gear type elevating gear as claimed in claim 3, it is characterized in that: the middle part of described gear piece has mounting hole, described mounting hole is with the profile of tooth line of centers on the described gear piece top hole symmetric arrangement that is as the criterion, and the center of circle of described bearing pin mounting hole is positioned on the extension line of described gear piece top castellated edge line.
5, stacked flexible rack gear type elevating gear as claimed in claim 1 is characterized in that: be provided with supplementary plate between described each gear piece, the profile of tooth on described supplementary plate top is identical with the profile of tooth of described gear piece.
6, as claim 2 or 3 described stacked flexible rack gear type elevating gears, it is characterized in that: described positive gear piece below be provided with inner fovea part, be provided with supplementary plate between described each gear piece, the profile of tooth on described supplementary plate top is identical with the profile of tooth of described gear piece, the both sides of described supplementary plate are equipped with inner fovea part, and the inner fovea part of described supplementary plate is identical with the inner fovea part of described gear piece.
7, stacked flexible rack gear type elevating gear as claimed in claim 4 is characterized in that: the mounting hole on the described supplementary plate is identical with position of mounting hole on the described gear piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201680892U CN201338927Y (en) | 2008-11-14 | 2008-11-14 | Stacked flexible rack type lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201680892U CN201338927Y (en) | 2008-11-14 | 2008-11-14 | Stacked flexible rack type lifting device |
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| Publication Number | Publication Date |
|---|---|
| CN201338927Y true CN201338927Y (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201680892U Expired - Lifetime CN201338927Y (en) | 2008-11-14 | 2008-11-14 | Stacked flexible rack type lifting device |
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| CN (1) | CN201338927Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555803A (en) * | 2013-10-11 | 2015-04-29 | 斯毕士舞台设备技术（杭州）有限公司 | Push-pull chain jacking mechanism driven by screw and nut |
| CN108386022A (en) * | 2018-02-11 | 2018-08-10 | 浙江舞台设计研究院有限公司 | A kind of rigid chain elevating mechanism |
-
2008
- 2008-11-14 CN CNU2008201680892U patent/CN201338927Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555803A (en) * | 2013-10-11 | 2015-04-29 | 斯毕士舞台设备技术（杭州）有限公司 | Push-pull chain jacking mechanism driven by screw and nut |
| CN104555803B (en) * | 2013-10-11 | 2017-04-12 | 斯毕士舞台设备技术（杭州）有限公司 | Push-pull chain jacking mechanism driven by screw and nut |
| CN108386022A (en) * | 2018-02-11 | 2018-08-10 | 浙江舞台设计研究院有限公司 | A kind of rigid chain elevating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG DAFENG INDUSTRY CO., LTD. Free format text: FORMER OWNER: FENG HUA Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315400 NO.737, XINJIAN NORTH ROAD, YUYAO CITY, ZHEJIANG PROVINCE TO: 315400 NO.737, XINJIAN NORTH ROAD, YANGMING INDUSTRIAL PARK, YUYAO CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 315400 No. 737, Xinjian North Road, Yangming Industrial Zone, Zhejiang, Yuyao Patentee after: Zhejiang Dafeng Industrial Co., Ltd. Address before: 315400 No. 737 Xinjian North Road, Zhejiang, Yuyao Patentee before: Feng Hua |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315400 No. 737, Xinjian North Road, Yangming Industrial Zone, Zhejiang, Yuyao Patentee after: ZHEJIANG DAFENG INDUSTRY COMPANY LTD. Address before: 315400 No. 737, Xinjian North Road, Yangming Industrial Zone, Zhejiang, Yuyao Patentee before: Zhejiang Dafeng Industrial Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |
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| CX01 | Expiry of patent term |