CN201660845U - Working platform extension device of bridge inspection vehicle - Google Patents
Working platform extension device of bridge inspection vehicle Download PDFInfo
- Publication number
- CN201660845U CN201660845U CN2009202941273U CN200920294127U CN201660845U CN 201660845 U CN201660845 U CN 201660845U CN 2009202941273 U CN2009202941273 U CN 2009202941273U CN 200920294127 U CN200920294127 U CN 200920294127U CN 201660845 U CN201660845 U CN 201660845U
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- China
- Prior art keywords
- working platform
- platen
- hydraulic motor
- rubber wheel
- bolt
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- Expired - Fee Related
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Abstract
The utility model provides a working platform extension device of a bridge inspection vehicle, which comprises rubber wheels, a hydraulic motor, a flange plate and a preloaded spring. The entire extension device is mounted on a fixed walking bedplate of the working platform, the rubber wheels are in contact with a movable walking bedplate of the working platform and are driven by the hydraulic motor to rotate, and the movable walking bedplate is driven by friction force to move. When load on the walking bedplates varies, the pressure between the rubber wheels and the movable walking bedplate is automatically adjusted by the preloaded spring, so that the rubber wheels are prevented from being damaged by excessive pressure. The mechanism has the advantages of stable operation, simple structure, and simple and convenient maintenance.
Description
Technical field
The utility model relates to the parts that a kind of bridge detects working vehicle, particularly a kind of bridge inspection vehicle working platform telescoping mechanism.
Background technology
Along with China's constant development of economy, the number of highway bridge sharply increases, and the application of truss-like bridge inspection vehicle more and more widely.And because the width of newly-built bridge constantly increases, the length of bridge inspection vehicle working platform is also continuing to increase.At present the telescoping mechanism of bridge inspection vehicle working platform mainly still adopts chain type, but chain structure is because there are easy chain rupture in design feature own and mode of occupation, easy-maintaining not, the shortcoming of poor stability.
Summary of the invention
The purpose of this utility model provides a kind of bridge inspection vehicle working platform telescoping mechanism, to solve the existing easy chain rupture of chain type telescoping mechanism, problem such as easy-maintaining, poor stability not.
The utility model is as follows in order to the technical scheme that realizes above-mentioned purpose:
A kind of working platform telescoping mechanism of bridge inspection vehicle, this telescoping mechanism is made up of rubber wheel, hydraulic motor, flange, several parts of preloading spring.Whole telescoping mechanism is installed in fixedly walking on the platen of working platform, the activity of working platform is walked platen and is positioned on the rubber wheel, and the pressure that produces by deadweight closely contacts with rubber wheel, driving rubber wheel by hydraulic motor rotates, rely on rubber wheel and activity to walk the frictional force drive activity that produces between the platen and walk the platen motion, realize Telescopic.Rubber wheel is installed on the power transmission shaft of hydraulic motor, and hydraulic motor then is installed on the flange, and an end of flange is with fixedly to walk platen hinged, and the other end is installed in one to have on the elastic mechanism of elastic displacement up and down.Described elastic mechanism comprises preloading spring, bolt, nut and pretension bearing, described preloading spring is enclosed within on the bolt, and is contained on the pretension bearing by bolt, and an end of flange passes bolt and is pressed in the preloading spring upper end, nut is assemblied in the bolt upper end, adjusts preload pressure.The pressure that rubber wheel and activity are walked between the platen is regulated by preloading spring.When the load increase of platen is walked in activity, length of spring compressed, rubber wheel descends, and avoids causing rubber wheel to damage owing to load is excessive; In use when rubber wheel wore and tore, spring unclamped gradually, made rubber wheel and activity walk between the platen to produce enough pressure, guaranteed to produce enough frictional force and made activity walk the platen motion.
This bridge inspection vehicle working platform telescoping mechanism is real owing to adopted rubber wheel transmission activity to walk platen, and regulates the structure that the contact pressure between the platen is walked in rubber wheel and activity with spring, has the advantage of working stability, simple in structure, easy maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among Fig. 1: 1. rubber wheel, 2. hydraulic motor, 3. flange, 4. preloading spring is 5. fixedly walked platen, and platen is walked in 6 activities, 7 pretension bearings, 8 nuts, 9 bolts.
The specific embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, hydraulic motor 2 is installed on the flange 3, and rubber wheel 1 is installed on the power transmission shaft of hydraulic motor 2, flange 3 one ends and bridge inspection vehicle fixedly to walk platen 5 hinged, the other end is installed on the preloading spring 4.Preloading spring 4 is enclosed within on the bolt 9, and is contained on the pretension bearing 7 by bolt 9, and an end of flange 3 passes bolt 9 and is pressed in preloading spring 4 upper ends, and nut 8 is assemblied in bolt 9 upper ends, adjusts preload pressure.The activity of bridge inspection vehicle is walked platen 6 and is positioned at rubber wheel 1 top, and closely contacts with rubber wheel 1, and the deadweight that the pressure between them is walked platen 6 by activity produces, and is regulated by preloading spring 4.
During work, drive rubber wheel 1 by hydraulic motor 2 and rotate, rubber wheel 1 and activity are walked between the platen 6 and are produced frictional force, and platen 6 motions are walked in the drive activity.The rotation direction of control hydraulic motor 2 just can make activity walk platen 6 and realize stretching motion.
Claims (2)
1. the working platform telescoping mechanism of a bridge inspection vehicle, described telescoping mechanism is installed in fixedly walking on the platen (5) of working platform;
It is characterized in that: described telescoping mechanism is made up of rubber wheel (1), hydraulic motor (2), flange (3) and preloading spring (4);
Described rubber wheel (1) is installed on the power transmission shaft of hydraulic motor (2), drives rubber wheel (1) by hydraulic motor (2) and rotates;
Described hydraulic motor (2) is installed on the flange (3);
Described flange (3) one ends are with fixedly to walk platen (5) hinged, and the other end is installed on one to have on the elastic mechanism of elastic displacement up and down;
Platen (6) below is walked in the activity that described rubber wheel (1) is positioned at working platform, and walks platen (6) with activity and closely contact, and dependence frictional force drive activity is walked platen (6) and moved.
2. the working platform telescoping mechanism of bridge inspection vehicle according to claim 1, it is characterized in that: described elastic mechanism comprises preloading spring (4), bolt (9), nut (8) and pretension bearing (7), described preloading spring (4) is enclosed within on the bolt (9), and be contained on the pretension bearing (7) by bolt (9), one end of flange (3) passes bolt (9) and is pressed in preloading spring (4) upper end, nut (8) is assemblied in bolt (9) upper end, adjusts preload pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202941273U CN201660845U (en) | 2009-12-25 | 2009-12-25 | Working platform extension device of bridge inspection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202941273U CN201660845U (en) | 2009-12-25 | 2009-12-25 | Working platform extension device of bridge inspection vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660845U true CN201660845U (en) | 2010-12-01 |
Family
ID=43231262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202941273U Expired - Fee Related CN201660845U (en) | 2009-12-25 | 2009-12-25 | Working platform extension device of bridge inspection vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201660845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101437A (en) * | 2011-01-31 | 2011-06-22 | 徐州徐工随车起重机有限公司 | Walking driving and supporting device for bridge detection operating vehicle |
-
2009
- 2009-12-25 CN CN2009202941273U patent/CN201660845U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101437A (en) * | 2011-01-31 | 2011-06-22 | 徐州徐工随车起重机有限公司 | Walking driving and supporting device for bridge detection operating vehicle |
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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: 20101201 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |