CN201653828U - Hammer-lifting and releasing mechanism of falling weight deflectometer - Google Patents
Hammer-lifting and releasing mechanism of falling weight deflectometer Download PDFInfo
- Publication number
- CN201653828U CN201653828U CN2010201272566U CN201020127256U CN201653828U CN 201653828 U CN201653828 U CN 201653828U CN 2010201272566 U CN2010201272566 U CN 2010201272566U CN 201020127256 U CN201020127256 U CN 201020127256U CN 201653828 U CN201653828 U CN 201653828U
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- CN
- China
- Prior art keywords
- carrying
- hammer
- piston bar
- releasing mechanism
- oil cylinder
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- Expired - Lifetime
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to a hammer-lifting and releasing mechanism of a falling weight deflectometer, relating to a measuring instrument of highway pavement intensity and comprising an outer sleeve, an inner sleeve, a multistage oil cylinder and a hammer-lifting barrel with a flange, wherein a stand column is fixed in the bottom part of the outer sleeve and is penetrated through the bottom part of the inner sleeve. A steel ball is inlaid in a through hole on the side wall of the inner sleeve, and the outer wall of the inner sleeve is glidingly connected with the inner wall of the outer sleeve. The middle of the multistage oil cylinder is fixedly provided with a center piston rod and a middle piston rod, and the middle piston rod is sheathed out the center piston rod. The center piston rod is fixedly connected with the bottom part of the inner sleeve, and the middle piston rod is fixedly connected with the stand column. The hammer-lifting barrel is positioned at the outer side of the cylinder barrel of the multistage oil cylinder, and the flange on the hammer-lifting barrel is near the inner wall of the inner sleeve. The utility model is characterized in that an elastic structure is arranged between the outer sleeve and the bottom part of the inner sleeve. The inner sleeve moves downwards by the bound force of the elastic structure, so the hammer-lifting and releasing mechanism realizes the rapid releasing state, and the measurement is convenient and fast.
Description
Technical field
The utility model relates to the surveying instrument of highway pavement intensity, particularly relates to carrying of a kind of drop hammer type flexure and hammers into shape and releasing mechanism.
Background technology
Utility model patent " carrying of a kind of Falling Weight Deflectometer hammered into shape and releasing mechanism " is (ZL200520105497.X) by interior cover, overcoat, multi-stage oil cylinder, steel ball and spring are formed, interior cover is connected with the piston rod of oil cylinder, in the hole of overlapping in steel ball is embedded in, in be enclosed within overcoat inside and move up and down, its course of work is: at first carry hammer and move upward with releasing mechanism, when moving to the lower edge of the projection of carrying hammer tube top, this position is for carrying the hammer position, this moment, steel ball was in the lower end of carrying hammer tube projection, steel ball will be carried the hammer tube and block, can carry hammer, when carry hammer certain altitude into shape after, descending by the apply piston bar of oil cylinder, the drive inner core is descending, this moment, the steel ball position was moved, with the lower part of carrying hammer tube projection from, carry hammer and lose the supporting role of steel ball and the movement of falling object takes place downwards.There is a problem in this structure; lost efficacy sometimes; because the friction force between interior cover, the overcoat is bigger; it is descending that oil cylinder can not in time act on piston rod; so the stage of a stagnation takes place through regular meeting; interior cover is not descending, often is manually to press interior cover in practice, brings a lot of inconvenience to measuring operation.
Summary of the invention
At the deficiency in the above-mentioned field, what the utility model provided a kind of Falling Weight Deflectometer carries hammer and releasing mechanism, this mechanism realize carrying hammer and the release function continuity good, do not need manpower to help, use measurement very convenient.
Carrying of Falling Weight Deflectometer hammered into shape and releasing mechanism, comprise overcoat, interior cover, multi-stage oil cylinder and flanged hammer tube of carrying, described jacket bottom internal fixation has column, cover bottom in column passes, through hole on the sidewall of the inside race is embedded with steel ball, outer wall of inside race and outer casing inner wall are slidingly connected, described multi-stage oil cylinder center fixed has center piston bar and intermediate piston bar, the intermediate piston bar is socketed in center piston bar outside, described center piston bar is fixedlyed connected with interior cover bottom, described intermediate piston bar is fixedlyed connected with column, the described hammer tube of carrying is positioned at outside the cylinder barrel of multi-stage oil cylinder, the described close interior cover inwall of carrying on the hammer tube of flange is characterized in that: be provided with elastic construction between the bottom of described overcoat and interior cover.
Described elastic construction is folded spring.
Described folded spring is socketed on the column.
The relative steel ball of described outer casing inner wall zone of action is provided with angle.
Be fixed with the intermediate piston web joint of fixedlying connected on the described intermediate piston bar with column.
In the middle of be indecisive and changeable plug drive in cover up, elastic construction is in compressive state, because the acting force of oil cylinder is far longer than the bounce of elastic construction, steel ball blocks mutually with flange in the up process of interior cover, is in the hammer state of carrying, it is up that the intermediate piston bar drives total, and bounce remains to always to be carried hammer tube and rises to definite height, discharges then and since the bounce of flexible structure make in cover descending, steel ball separates with flange, carries hammer and does the movement of falling object.Elastic construction can be existing various structure, preferably folded spring, and a plurality of reeds stack and are enclosed within the column and can be fixed.
Outer casing inner wall is provided with an angle, and when interior cover moves downwards, steel ball enters the angle zone, in the interval in promptly entering between cover and the overcoat, impels that steel ball and flange are more convenient to be separated fast, realizes release conditions.
The utility model is provided with elastic construction between interior cover and jacket bottom, utilize the bounce of elastic construction to make interior cover descending, realizes the snap-out release state, makes measurement convenient and swift.
Description of drawings
Fig. 1 the utility model structural representation,
Each label lists as follows among the figure:
1-cylinder barrel, 2-are carried the hammer tube, the 3-steel ball, and the 4-flange, 5-intermediate piston bar, cover in the 6-overcoat, 7-, the 8-column, 9-folds spring, 10-intermediate piston web joint, 11-multi-stage oil cylinder, 12-center piston bar, 13-angle.
Specific implementation method
As shown in Figure 1, carrying of the utility model Falling Weight Deflectometer hammered into shape and releasing mechanism, comprise overcoat 6, interior cover 7, tube 2 is hammered in carrying of multi-stage oil cylinder 11 and flanged pin 4 into shape, described overcoat 6 bottom internal fixation have column 8, cover 7 bottoms in column 8 passes, through hole on interior cover 7 sidewalls is embedded with steel ball 3, interior cover 7 outer walls and overcoat 6 inwalls are slidingly connected, described multi-stage oil cylinder 11 center fixed have center piston bar 12 and intermediate piston bar 5, intermediate piston bar 5 is socketed in center piston bar 12 outsides, described center piston bar 12 is fixedlyed connected with interior cover 7 bottoms, described intermediate piston bar 5 is fixedlyed connected with column 8 by intermediate piston web joint 10, describedly carry the outside that hammer tube 2 is positioned at the cylinder barrel 1 of multi-stage oil cylinder 11, describedly carry flange 4 on the hammer tube 2 near interior cover 7 inwalls, section is provided with and folds spring 9 between the bottom of described column 8 overcoats 6 and interior cover 7.
Its principle of work: in the middle of be indecisive and changeable stopper rod 12 drive in cover 7 up, folded spring 9 is in compressive state, because the acting force of multi-stage oil cylinder 11 is far longer than the bounce of folded spring 9, when steel ball 3 with after flange 4 blocks mutually, it is up that oil cylinder acts on intermediate piston bar 5 drive totals, carry hammer, and bounce remains to always to be carried hammer tube 2 and rises to definite height, discharges then and since have the bounce of folded spring 9 make in cover 7 descending, steel ball 3 separates with flange 4, carries hammer and does the movement of falling object.Folded spring is stacked by a plurality of reeds and to be enclosed within on the column 8.
The relative steel ball of described overcoat 7 inwalls 3 zones of action are provided with angle 13.Steel ball 3 is positioned at angle 13, and steel ball 3 separates with flange 4, is in release conditions, leaves angle 13 when steel ball 3 rises, and steel ball 3 blocks mutually with flange 4, is in the hammer state of carrying.The setting of angle 13 impels that steel ball 3 and flange 4 are more convenient to be separated fast, realizes release conditions.
The utility model is provided with folded spring 9 between interior cover 7 and overcoat 6 bottoms, cover 7 was descending in the bounce of the folded spring 9 of utilization made, and realized the snap-out release state, made measurement convenient and swift.
Claims (5)
1. carrying of Falling Weight Deflectometer hammered into shape and releasing mechanism, comprise overcoat, interior cover, multi-stage oil cylinder and flanged hammer tube of carrying, described jacket bottom internal fixation has column, cover bottom in column passes, through hole on the sidewall of the inside race is embedded with steel ball, outer wall of inside race and outer casing inner wall are slidingly connected, described multi-stage oil cylinder center fixed has center piston bar and intermediate piston bar, the intermediate piston bar is socketed in center piston bar outside, described center piston bar is fixedlyed connected with interior cover bottom, described intermediate piston bar is fixedlyed connected with column, the described hammer tube of carrying is positioned at outside the cylinder barrel of multi-stage oil cylinder, the described close interior cover inwall of carrying on the hammer tube of flange is characterized in that: be provided with elastic construction between the bottom of described overcoat and interior cover.
2. carrying of Falling Weight Deflectometer according to claim 1 hammered into shape and releasing mechanism, it is characterized in that: described elastic construction is folded spring.
3. carrying of Falling Weight Deflectometer according to claim 2 hammered into shape and releasing mechanism, and it is characterized in that: described folded spring is socketed on the column.
4. carrying of Falling Weight Deflectometer according to claim 1 hammered into shape and releasing mechanism, and it is characterized in that: the relative steel ball of described outer casing inner wall zone of action is provided with angle.
5. carrying of Falling Weight Deflectometer according to claim 1 hammered into shape and releasing mechanism, it is characterized in that: be fixed with the intermediate piston web joint of fixedlying connected with column on the described intermediate piston bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201272566U CN201653828U (en) | 2010-03-08 | 2010-03-08 | Hammer-lifting and releasing mechanism of falling weight deflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201272566U CN201653828U (en) | 2010-03-08 | 2010-03-08 | Hammer-lifting and releasing mechanism of falling weight deflectometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653828U true CN201653828U (en) | 2010-11-24 |
Family
ID=43119071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201272566U Expired - Lifetime CN201653828U (en) | 2010-03-08 | 2010-03-08 | Hammer-lifting and releasing mechanism of falling weight deflectometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698495A (en) * | 2012-09-28 | 2014-04-02 | 北京航天计量测试技术研究所 | Load transmission capacity measurement device for concrete pavement joint |
| CN104458452A (en) * | 2014-11-21 | 2015-03-25 | 清华大学苏州汽车研究院（相城） | Compression and relaxation testing device |
| CN104459764A (en) * | 2014-11-20 | 2015-03-25 | 天津大学 | Linkage electromagnetic hammer applicable to researching multi-point seismic oscillation in laboratory |
-
2010
- 2010-03-08 CN CN2010201272566U patent/CN201653828U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698495A (en) * | 2012-09-28 | 2014-04-02 | 北京航天计量测试技术研究所 | Load transmission capacity measurement device for concrete pavement joint |
| CN104459764A (en) * | 2014-11-20 | 2015-03-25 | 天津大学 | Linkage electromagnetic hammer applicable to researching multi-point seismic oscillation in laboratory |
| CN104459764B (en) * | 2014-11-20 | 2017-02-01 | 天津大学 | Linkage electromagnetic hammer applicable to researching multi-point seismic oscillation in laboratory |
| CN104458452A (en) * | 2014-11-21 | 2015-03-25 | 清华大学苏州汽车研究院（相城） | Compression and relaxation testing device |
| CN104458452B (en) * | 2014-11-21 | 2017-07-07 | 清华大学苏州汽车研究院（相城） | A kind of compression stress relaxation experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170802 Address after: 100176, Beijing, Beijing economic and Technological Development Zone,, 3 Jingdong street, 1, 13, 1, unit 1108 Patentee after: Beijing Shenjian Road Technology Co. Ltd. Address before: 100076, No. 3, South District, old palace, old palace town, old town, Beijing, Daxing District Patentee before: BEIJING JINGU MEASURING & CONTROL TECHNOLOGY INSTITUTE |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |