CN202967948U - Flexible-guide-wheel-type amplitude of variation trolley of tower crane - Google Patents
Flexible-guide-wheel-type amplitude of variation trolley of tower crane Download PDFInfo
- Publication number
- CN202967948U CN202967948U CN 201220665877 CN201220665877U CN202967948U CN 202967948 U CN202967948 U CN 202967948U CN 201220665877 CN201220665877 CN 201220665877 CN 201220665877 U CN201220665877 U CN 201220665877U CN 202967948 U CN202967948 U CN 202967948U
- Authority
- CN
- China
- Prior art keywords
- wheel
- guide
- guide wheel
- tower crane
- trolley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a flexible-guide-wheel-type amplitude of a variation trolley of tower crane. The flexible-guide-wheel-type amplitude of the variation trolley of tower crane is characterized in that the flexible-guide-wheel-type amplitude of the variation trolley of tower crane is provided with a lateral guide wheel device of the trolley based on the traditional trolley, and a lateral guide wheel is separated into two modules, one module is an installation positioning module, and the other module is a guide wheel module, and the two modules are connected together through a connecting rod and a spring sleeved out of the connecting rod; the installation positioning module is directly welded on the trolley. The flexible-guide-wheel-type amplitude of the variation trolley of tower crane provided by the utility model rolls through pasting the outer side surface of a lower chord tightly by the lateral guide wheel so as to generate rolling friction, prevents slide friction, and prevents the situations of rubbing and knocking web members and blocking.
Description
Technical field
The present invention is that to belong to be loading trolley about the tower machine, is specifically related to a kind of amplitude variation type dolly of tower crane.
Background technology
Carriage amplitude varying formula tower body hoisting crane loading trolley is when work, and dolly relies on the variable-amplitude steel wire rope traction, and in the action of crane arm lower boom upper surface scrolling realization luffing, the side direction roller contacts with the lower boom lateral surface directional tagging of realizing side direction simultaneously by roller.General upper roller and side guide wheel adopt the welding rigidity to locate, but the accuracy limitations of manufacturing due to derrick runway girder and dolly itself in actual production, often there are excessive gap in side guide wheel and crane arm lower boom, only have the part side guide wheel to contact with lower boom during dolly work, the cross travel that dolly is produced along the vertical luffing of crane arm the time is excessive, cause lower boom upper surface roller to be wiped encountering crane arm flank bar or flank pole-footing section weld seam in the carriage amplitude varying process, produce additional dynamic load.Perhaps become large because the very few dolly of side guide wheel contact quantity moves friction drag, greatly reduce the service efficiency of trolley travel mechanism, dolly even occurs stuck, the situation that the variable-amplitude steel wire rope traction is motionless.These situations have all badly influenced use and the whole safety of tower machine.Therefore we will consider to make side guide wheel to contact all the time lower boom side rolling.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of tower crane guide-roller type amplitude variation trolley that stretches.
The tower crane guide-roller type amplitude variation trolley that stretches, it is on the basis of traditional dolly, the side guide wheel device of dolly is set, side guide wheel is divided into two modules, one locating module is installed, a guide wheel module, both link together by pipe link and cover spring externally, locating module is installed directly is welded on dolly.
This dolly principle of work is, at first the inner width of side guide wheel is less than crane arm lower boom two lateral surface molded breadths, and chooses a suitable scope, when dolly is installed on crane arm, crane arm lower boom lateral surface extruding side guide wheel makes side guide wheel device contained spring Partial shrinkage.then dolly in crane arm walking at this moment due to the manufacturing errors of crane arm itself, crane arm lower boom lateral surface actual distance may be greater than or less than gross data, at this moment because side guide wheel device contained spring participates in the Partial shrinkage state, thereby whole side guide wheel can be compressed within the specific limits or overhanging assurance, side guide wheel is adjacent to all the time the lower boom lateral surface and rolls, produce friction of rolling, avoid cliding friction, reach and prevent that dolly from wiping web member and the stuck situation of touching, between the error arm of manufacturing due to crane arm simultaneously saves, the junction can't guarantee fully at same plane, dolly will produce vibration during by these junctions, and this dolly side guide wheel is owing to there being the spring clamping device, thereby played the effect of damping, well improved the operating mode of dolly work.
the technical solution adopted for the present invention to solve the technical problems is: 1, the design of spring installation, by the steel rope tractive force limit of luffing device and the theoretical maximum angle of dolly central axis and crane arm central axis, calculate the theoretical maximum pressure that a side guide wheel bears, choose proper stiffness spring wire diameter and spring mean coil diameter by this force value, the spring maximum compressibility choose general tolerance according to our company's crane arm and dolly actual production, choose the suitable number of coils, guarantee that the dolly side guide wheel steps up crane arm 2 all the time, the relative sliding of guide wheel module and installation locating module, adopted the mode of guide-track groove that the inner processing place guide-track groove of locating module is being installed.Pipe link and guide wheel module are integral type simultaneously, and on pipe link, then the guide wheel module is inserted in the inner chamber guide-track groove of registration device with spring housing, reaches the flexible of guide wheel by the slip of guide wheel module in guide-track groove.3, the flexible stroke limit of guide wheel, mainly by the elongated slot on pipe link with locating module is installed outside clamp coordinate realization, clamp is fixed by bolts to the installation locating module, reach whole device the installing/dismounting requirement.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A cut-away view;
Fig. 3 is that B is to schematic diagram.
The specific embodiment
Further illustrate below in conjunction with accompanying drawing:
As Figure 1-3, the tower crane guide-roller type amplitude variation trolley that stretches, it is on the basis of traditional dolly, the side guide wheel device 2 of dolly 1 is set, side guide wheel is divided into two modules, one locating module 3 is installed, a guide wheel module 4, both link together by pipe link 5 and cover spring 6 externally, locating module 3 is installed directly is welded on dolly 1, and a guide wheel module 4 connects dolly 1 by clamp 7.
Claims (1)
1. the flexible guide-roller type amplitude variation trolley of tower crane, it is characterized in that: the tower crane guide-roller type amplitude variation trolley that stretches, it is on the basis of traditional dolly, the side guide wheel device of dolly is set, side guide wheel is divided into two modules, one locating module, a guide wheel module is installed, both link together by pipe link and cover spring externally, locating module is installed directly is welded on dolly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665877 CN202967948U (en) | 2012-12-06 | 2012-12-06 | Flexible-guide-wheel-type amplitude of variation trolley of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665877 CN202967948U (en) | 2012-12-06 | 2012-12-06 | Flexible-guide-wheel-type amplitude of variation trolley of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202967948U true CN202967948U (en) | 2013-06-05 |
Family
ID=48509052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665877 Expired - Fee Related CN202967948U (en) | 2012-12-06 | 2012-12-06 | Flexible-guide-wheel-type amplitude of variation trolley of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202967948U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204440A (en) * | 2012-12-06 | 2013-07-17 | 浙江虎霸建设机械有限公司 | Tower crane telescoping guide wheel type variable amplitude trolley |
| CN107355469A (en) * | 2017-08-03 | 2017-11-17 | 扬州迈上塑业有限公司 | A kind of shock-absorption guide wheel |
| CN107915121A (en) * | 2017-11-01 | 2018-04-17 | 芜湖市长江起重设备制造有限公司 | A kind of guide-roller arrangement for lifting head rack |
-
2012
- 2012-12-06 CN CN 201220665877 patent/CN202967948U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204440A (en) * | 2012-12-06 | 2013-07-17 | 浙江虎霸建设机械有限公司 | Tower crane telescoping guide wheel type variable amplitude trolley |
| CN103204440B (en) * | 2012-12-06 | 2015-03-25 | 浙江虎霸建设机械有限公司 | Tower crane telescoping guide wheel type variable amplitude trolley |
| CN107355469A (en) * | 2017-08-03 | 2017-11-17 | 扬州迈上塑业有限公司 | A kind of shock-absorption guide wheel |
| CN107915121A (en) * | 2017-11-01 | 2018-04-17 | 芜湖市长江起重设备制造有限公司 | A kind of guide-roller arrangement for lifting head rack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202114453U (en) | Press-in machine | |
| CN202967948U (en) | Flexible-guide-wheel-type amplitude of variation trolley of tower crane | |
| CN206811554U (en) | A kind of track rod is made of horizontal dedicated fixture for drilling | |
| CN102674189B (en) | Automatic counting alignment winch for offshore oil well high pressure oil pipe | |
| CN107539324B (en) | Flatbed with adjustable wheel interval for hydraulic and hydroelectric engineering | |
| CN204211405U (en) | With the winch cable guide wheel device of guide groove | |
| CN202390074U (en) | Gantry hook | |
| CN103204440B (en) | Tower crane telescoping guide wheel type variable amplitude trolley | |
| CN103342281B (en) | Travelling wheel mechanism and travelling system used for ocean engineering crane | |
| CN203448887U (en) | Welding operation frame which can rotate flexibly | |
| CN202622271U (en) | Cylinder body welding fixture | |
| CN104326383A (en) | Crane and torque self-balancing device and method thereof | |
| CN203048872U (en) | Coal pressing-floating device of coke-oven coal charging car | |
| CN203845779U (en) | Cantilever crane structure of foldable overhead working truck with embedded oil cylinder | |
| CN202226579U (en) | Guide device for telescopic oil cylinder of suspension arm | |
| CN201553567U (en) | Fork hoisting machine telescopic arm capable of expanding flexibly | |
| CN202594667U (en) | Tail telescopic arm for lifting arm of automobile crane | |
| CN204847990U (en) | Bridge -type lifter | |
| CN202759937U (en) | Polyethylene (PE) pipe bracket structure of winding type sprinkling irrigation machine | |
| CN202464978U (en) | Weighing sensing mechanism for lift and lift thereof | |
| CN203441861U (en) | Hydraulic cylinder | |
| CN215971515U (en) | Coal mine self-moving equipment train derailment prevention device | |
| CN202934406U (en) | Sensor installing structure in circular seam back gouging edge milling machine | |
| CN208762001U (en) | A kind of crane | |
| CN203197054U (en) | Oil cylinder underneath type veneer reeling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141206 |
|
| EXPY | Termination of patent right or utility model |