CN2827997Y - Improved chain lifting mechanism - Google Patents
Improved chain lifting mechanism Download PDFInfo
- Publication number
- CN2827997Y CN2827997Y CN 200520129615 CN200520129615U CN2827997Y CN 2827997 Y CN2827997 Y CN 2827997Y CN 200520129615 CN200520129615 CN 200520129615 CN 200520129615 U CN200520129615 U CN 200520129615U CN 2827997 Y CN2827997 Y CN 2827997Y
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- Prior art keywords
- lifting mechanism
- transmission shaft
- chain lifting
- improved chain
- guide rail
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- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 238000007493 shaping process Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- ZYXYTGQFPZEUFX-UHFFFAOYSA-N benzpyrimoxan Chemical compound O1C(OCCC1)C=1C(=NC=NC=1)OCC1=CC=C(C=C1)C(F)(F)F ZYXYTGQFPZEUFX-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001014327 Anodontia Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 230000005212 anodontia Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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Abstract
The utility model relates to an improved chain lifting mechanism which comprises a box body and a transmission shaft vertically arranged in the box body, wherein a power source drives the transmission shaft to rotate; an arced guide rail is arranged in the box body, the arced guide rail is provided with a conveyor chain which can slide along the arced guide rail, the conveyor chain is composed of a plurality of transmission blocks which are hinged in turn, and the transmission shaft and the transmission blocks are in screw thread fit, thereby, the transmission shaft drives the conveyor chain to move along the arced guide rail. The improved chain lifting mechanism not only has stable operation and low noise and reduces impact vibration, but also has high carrying capacity and stable performance, and the improved chain lifting mechanism can run reliably when carrying heavy loads.
Description
Technical field:
The utility model relates to a kind of lifting mechanism that is used for arenas, stage or orchestra, relates in particular to a kind of chain lifting mechanism of elevator stage.
Background technology:
In the prior art, the lifting mechanism that is used for arenas, stage or orchestra has various versions such as fluid pressure type, steel wire rope type, chain-type, rack-and-pinion, screw-and-nut.But all there are many deficiencies in above-mentioned various structure: the foundation depth as hydraulic pressure lifting mechanism is dark, is about the twice of lifting travel; The table top poor stability, discontinuity, table top tilts easily even blocks when heavy duty; Elastic deformation can take place in steel rope during the heavy duty of guide rope hoist structure, and table top sinks easily, needs blocking device is installed, and has improved productive costs.
Comparatively speaking, the foundation depth of chain lifting mechanism is more shallow, and performance is also comparatively reliable, has therefore obtained using widely.But existing chain lifting mechanism all is to adopt gear, tooth bar to carry out transmission, the applicant's CN2679131 number Chinese utility model patent as Granted publication on the 16th in State Intellectual Property Office's February in 2005, a kind of Flexible Rack Lifting Device is disclosed, comprise the lifting mechanism that is fixed in ground-surface fixed support, driving box, lifting support, is used for the jacking lifting support, lifting mechanism is installed in the fixed support; Wherein lifting mechanism comprises the hinged rigid chain that forms of more piece tooth bar, guide rail, and the gear that cooperates with tooth bar is installed on the fixed mount, and gear is driven by the actuating device in the driving box.Although this structure prior art relatively has certain progress, the greater impact vibration is arranged during the rack-and-gear engagement, can produce noise.
Another piece of writing disclosed CN1597034 Chinese invention patent on the 23rd application March in 2005, a kind of stage chain type lifting device is disclosed, this device adopts the transmission of chain type rack pinion transmission group, the rack tooth wheels are made up of gear, push-and-pull tooth bar and backgear group, the push-and-pull tooth bar has a side and the gear mesh of tooth, an anodontia side and backgear group are fitted, and are used for the diametral load of balance gear so on the one hand, also tooth bar are play the guiding role on the other hand.This scheme still exists aforesaidly can produce defectives such as impact, vibration, noise are big.
The utility model content:
The technical problems to be solved in the utility model is, overcomes the deficiency of above-mentioned prior art, and a kind of improved chain lifting mechanism is provided, and it not only turns round steadily, noise is little, has significantly reduced impact shock; And load-carrying capacity is strong, and stable performance also can reliably be turned round when heavy duty.
According to the improved chain lifting mechanism that the utility model provides, comprise a casing and vertically be installed on the interior transmission shaft of described casing that described transmission shaft is rotated by drive power source; Be provided with arc-shaped guide rail in the described casing, described arc-shaped guide rail is provided with can be along the conveyer chain of its slip; Described conveyer chain is made up of a plurality of drive blocks of pivotally attached successively, and described transmission shaft and described drive block screw thread fit move along described arc-shaped guide rail thereby drive described conveyer chain.
The utility model also has following attached technical characterictic:
The shaping surface of described transmission shaft has outside thread; Be formed with the incompleted thread hole that cooperates with described outside thread on the described drive block, the central angle of described tapped bore is smaller or equal to 180 degree.
In the preferred embodiment that the utility model provides, the cross sectional shape of described tapped bore is semicircle, and its central angle equals 180 degree.
Described drive block integral body is a square block, and the one side is formed with described tapped bore, and opposite side is formed with and the perpendicular two through hole of described tapped bore, in the described two through hole pin is installed; Each described drive block links together by described pin and pipe link.
The opposite side middle part of described drive block is formed relative two side by hollow out, and described pipe link is between described two side.
The inside face of described two side be positioned at described through hole around be formed with annular boss, the two end supports of described pipe link is in the end face of described annular boss.
Described two side is stretched out at the two ends of described pin, and its two ends of stretching out respectively is equipped with a roller; Described arc-shaped guide rail comprises upper rail and lower guideway, and the roller at described pin two ends is supported in respectively in described upper rail and the lower guideway.
Described transmission shaft is a step axle, and its upper end is installed on the roof of described casing by a radial ball bearing, and the diameter the best part adjacent with described upper end is formed with described outside thread; The bottom of described transmission shaft is supported in by a bearing assembly on the diapire of described casing, and described diapire is stretched out in its lower end, and links to each other with propulsion source.
Described bearing assembly comprises that one is fixed in the tubular bearing seat on the described diapire, and the two ends up and down in the described bearing seat are separately installed with a tapered roller bearing, and the upper surface of the tapered roller bearing of described upper end relies on the step surface of described transmission shaft; The lower surface of the tapered roller bearing of described lower end is supported on the setting nut, and described setting nut is threaded with described transmission shaft, and its lower end is equipped with a pressure ring.
The lower end of described transmission shaft is equipped with at least one sprocket wheel.
According to the improved chain lifting mechanism that the utility model provides, on the one hand owing to the hinged formation conveyer chain of a plurality of drive blocks of employing structure, and by the arc-shaped guide rail guiding, so the foundation depth of this lifting mechanism can be more shallow, stable performance, reliable; On the other hand since between transmission shaft and the drive block by the screw thread fit transferring power, so this lifting mechanism not only turns round steadily, noise is little, has significantly reduced impact shock; And have stronger load-carrying capacity, when heavy duty, also can reliably turn round.The structure of this mechanism is comparatively simple in addition, and is easily manufactured, reduced productive costs.
Description of drawings:
The full sectional view of the improved chain lifting mechanism that provides according to the utility model is provided Fig. 1, and it analyses and observe the C-C place among position such as Fig. 3;
Fig. 2 is the section-drawing at A-A place among Fig. 1, there is shown the shape of cross section of drive block and the fit structure of roller and guide rail;
Fig. 3 is the B-B part sectional view of Fig. 1, there is shown the connection structure between each drive block.
The specific embodiment:
Referring to Fig. 1, according to the improved chain lifting mechanism that the utility model provides, comprise a casing 1 and vertically be installed on a transmission shaft 2 in the described casing 1 that described transmission shaft 2 is rotated by drive power source.The general motor (not shown) of selecting is as propulsion source, and by 2 rotations of speed reduction gearing driving transmission shaft, as shown in Figure 1, in the utility model, the lower end of described transmission shaft 2 is equipped with a sprocket wheel 23, and motor drives described sprocket wheel 23 and transmission shaft 2 rotations by chain.
Referring to Fig. 1 and 2, be provided with arc-shaped guide rail 3 (being shown in broken lines among Fig. 1) in the described casing 1, described arc-shaped guide rail 3 is provided with can be along the conveyer chain 4 of its slip; Described conveyer chain 4 is made up of a plurality of drive blocks of pivotally attached successively 41, and described transmission shaft 2 and described drive block 41 screws thread fit move along described arc-shaped guide rail 3 thereby drive described conveyer chain 4.Owing to adopt arc-shaped guide rail and conveyer chain structure, therefore can effectively reduce the foundation depth of stage; Because transmission shaft 2 and drive block 41, therefore can guarantee this lifting mechanism running by the screw thread transmission steadily, noise is little, reliability service still when heavy duty.
In the utility model, the shaping surface of described transmission shaft 2 has outside thread 21; Be formed with the incompleted thread hole 411 that cooperates with described outside thread 21 on the described drive block 41, the central angle of described tapped bore 411 is smaller or equal to 180 degree.This structure makes that this lifting mechanism integral structure is simple, has reduced technology difficulty and productive costs.
As shown in Fig. 1,2, in the preferred embodiment that the utility model provides, the cross sectional shape of described tapped bore 411 is semicircle, and its central angle equals 180 degree.This structure had both made transmission shaft 2 be easy to and 41 engagements of each drive block, can guarantee the reliability of transmission again.
As shown in Fig. 1,2,3, described drive block 41 integral body are a square block, and the one side is formed with described tapped bore 411, and opposite side is formed with the two through hole 412 perpendicular with described tapped bore 411, in the described two through hole 412 pin 43 is installed; Each described drive block 41 links together by described pin 43 and pipe link 44.Concrete structure is as shown in Figure 3: two pins 43 pass the two through hole of same pipe link 44 respectively, thereby two drive blocks 41 are linked together.
As shown in Figure 2, the opposite side of described drive block 41 middle part is formed relative two side 413 by hollow out, and described pipe link 44 is between described two side 413.The inside face of described two side 413 be positioned at described through hole 412 around be formed with annular boss 414, the two end supports of described pipe link 44 is in the end face of described annular boss 414.Therefore can effectively reduce the friction between pipe link 44 and the drive block 41, improve driving efficiency.
As shown in Fig. 2,3, described two side 413 is stretched out at the two ends of described pin 43, and its two ends of stretching out respectively is equipped with a roller 45; Described arc-shaped guide rail 3 comprises upper rail 31 and lower guideway 32, and the roller 45 at described pin 43 two ends is supported in respectively in described upper rail 31 and the lower guideway 32.Therefore can guarantee described conveyer chain 4 on arc-shaped guide rail 3 reliably, slip reposefully.
As shown in fig. 1, described transmission shaft 2 is a step axle, and its upper end is installed on the roof 11 of described casing 1 by a bearing 22, and described bearing 22 is a radial ball bearing; The diameter the best part adjacent with described upper end is formed with described outside thread 21; The bottom of described transmission shaft 2 is supported in by a bearing assembly 5 on the diapire 12 of described casing 1, and described diapire 12 is stretched out in its lower end, and links to each other with propulsion source.As shown in fig. 1, described bearing assembly 5 comprises that one is fixed in the tubular bearing seat 51 on the described diapire 12, two ends up and down in the described bearing seat 51 are separately installed with a tapered roller bearing 52,53, and the upper surface of described tapered roller bearing 52 relies on the step surface of described transmission shaft 2; The lower surface of described tapered roller bearing 53 is supported on the setting nut 54, and described setting nut 54 is threaded with described transmission shaft 2, and its lower end is equipped with a pressure ring 55.Because transmission shaft 2 on described casing 1, therefore can effectively reduce friction by a plurality of roller bearings, guarantee to rotate alerting ability.
The foregoing description only illustrates the usefulness of the utility model; and be not to restriction of the present utility model; those of ordinary skill in the art; under the guide that does not break away from spirit and scope of the present utility model; also can make various distortion and conversion, so all technical schemes that are equal to all belong to protection domain of the present utility model.
Claims (10)
1, a kind of improved chain lifting mechanism comprises a casing (1) and vertically is installed on the interior transmission shaft (2) of described casing (1) that described transmission shaft (2) is rotated by drive power source; It is characterized in that: be provided with arc-shaped guide rail (3) in the described casing (1), described arc-shaped guide rail (3) is provided with can be along the conveyer chain (4) of its slip; Described conveyer chain (4) is made up of a plurality of drive blocks of pivotally attached successively (41), and described transmission shaft (2) and described drive block (41) screw thread fit move along described arc-shaped guide rail (3) thereby drive described conveyer chain (4).
2, improved chain lifting mechanism according to claim 1 is characterized in that: the shaping surface of described transmission shaft (2) has outside thread (21); Be formed with the incompleted thread hole (411) that cooperates with described outside thread (21) on the described drive block (41), the central angle of described tapped bore (411) is smaller or equal to 180 degree.
3, improved chain lifting mechanism according to claim 2 is characterized in that: the cross sectional shape of described tapped bore (411) is for semicircle, and its central angle equals 180 degree.
4, improved chain lifting mechanism according to claim 2, it is characterized in that: described drive block (41) integral body is a square block, the one side is formed with described tapped bore (411), opposite side is formed with the two through hole (412) perpendicular with described tapped bore (411), and pin (43) is installed in the described two through hole (412); Each described drive block (41) links together by described pin (43) and pipe link (44).
5, improved chain lifting mechanism according to claim 4 is characterized in that: the opposite side middle part of described drive block (41) is formed relative two side (413) by hollow out, and described pipe link (44) is positioned between the described two side (413).
6, improved chain lifting mechanism according to claim 5, it is characterized in that: the inside face of described two side (413) be positioned at described through hole (412) around be formed with annular boss (414), the two end supports of described pipe link (44) is in the end face of described annular boss (414).
7, improved chain lifting mechanism according to claim 5 is characterized in that: described two side (413) is stretched out at the two ends of described pin (43), and its two ends of stretching out respectively is equipped with a roller (45); Described arc-shaped guide rail (3) comprises upper rail (31) and lower guideway (32), and the roller (45) at described pin (43) two ends is supported in respectively in described upper rail (31) and the lower guideway (32).
8, according to any described improved chain lifting mechanism in the claim 1 to 7, it is characterized in that: described transmission shaft (2) is a step axle, its upper end is installed on the roof (11) of described casing (1) by a bearing (22), and the diameter the best part adjacent with described upper end is formed with described outside thread (21); The bottom of described transmission shaft (2) is supported on the diapire (12) of described casing (1) by a bearing assembly (5), and described diapire (12) is stretched out in its lower end, and links to each other with propulsion source.
9, improved chain lifting mechanism according to claim 8, it is characterized in that: described bearing assembly (5) comprises that one is fixed in the tubular bearing seat (51) on the described diapire (12), two ends up and down in the described bearing seat (51) are separately installed with a tapered roller bearing (52,53), and the upper surface of described tapered roller bearing (52) relies on the step surface of described transmission shaft (2); The lower surface of described tapered roller bearing (53) is supported on the setting nut (54), and described setting nut (54) is threaded with described transmission shaft (2), and its lower end is equipped with a pressure ring (55).
10, improved chain lifting mechanism according to claim 8 is characterized in that: described bearing (22) is a radial ball bearing, and the lower end of described transmission shaft (2) is equipped with at least one sprocket wheel (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129615 CN2827997Y (en) | 2005-10-25 | 2005-10-25 | Improved chain lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129615 CN2827997Y (en) | 2005-10-25 | 2005-10-25 | Improved chain lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2827997Y true CN2827997Y (en) | 2006-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520129615 Expired - Fee Related CN2827997Y (en) | 2005-10-25 | 2005-10-25 | Improved chain lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2827997Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882723A (en) * | 2017-03-07 | 2017-06-23 | 南京智真电子科技股份有限公司 | A kind of interior cabling rigidity sprocket wheel transmission lifting rod |
| CN110640720A (en) * | 2019-09-10 | 2020-01-03 | 贵州大学 | Flexible column lifting device |
| CN117989020A (en) * | 2024-01-30 | 2024-05-07 | 北京星河动力装备科技有限公司 | Snap ring connection structure and solid rocket engine |
-
2005
- 2005-10-25 CN CN 200520129615 patent/CN2827997Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882723A (en) * | 2017-03-07 | 2017-06-23 | 南京智真电子科技股份有限公司 | A kind of interior cabling rigidity sprocket wheel transmission lifting rod |
| CN110640720A (en) * | 2019-09-10 | 2020-01-03 | 贵州大学 | Flexible column lifting device |
| CN117989020A (en) * | 2024-01-30 | 2024-05-07 | 北京星河动力装备科技有限公司 | Snap ring connection structure and solid rocket engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Dafeng Industrial Co., Ltd. Assignor: Feng Guoxun Contract fulfillment period: 2008.8.15 to 2013.8.14 Contract record no.: 2008330000201 Denomination of utility model: Improved chain lifting mechanism Granted publication date: 20061018 License type: Exclusive license Record date: 20080818 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.15 TO 2013.8.14 Name of requester: ZHEJIANG DAFENG INDUSTRY CO., LTD. Effective date: 20080818 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG DAFENG INDUSTRY CO.,LTD. Free format text: FORMER OWNER: FENG GUOXUN Effective date: 20100806 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315400 ZHEJIANG DAFENG INDUSTRY CO., LTD., NO.737, XINJIAN NORTH ROAD, YUYAO CITY, ZHEJIANG PROVINCE TO: 315400 NO.737, XINJIAN NORTH ROAD, YANGMING INDUSTRY PARK, YUYAO CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100806 Address after: 315400 No. 737, Xinjian North Road, Yangming Industrial Zone, Zhejiang, Yuyao Patentee after: Zhejiang Dafeng Industrial Co., Ltd. Address before: 315400 Zhejiang Dafeng Industrial Co., Ltd., 737 Xinjian North Road, Zhejiang, Yuyao Patentee before: Feng Guoxun |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20121025 |