CN102936959B - Device for adjusting section distance of steel bar truss - Google Patents
Device for adjusting section distance of steel bar truss Download PDFInfo
- Publication number
- CN102936959B CN102936959B CN201210494769.4A CN201210494769A CN102936959B CN 102936959 B CN102936959 B CN 102936959B CN 201210494769 A CN201210494769 A CN 201210494769A CN 102936959 B CN102936959 B CN 102936959B
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- CN
- China
- Prior art keywords
- journal stirrup
- eccentric shaft
- steel bar
- supporting lug
- mounting bracket
- 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
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Abstract
The invention relates to a device for adjusting a section distance of a steel bar truss, which is particularly used for adjusting a step distance of the steel bar truss. The device comprises a step oil cylinder, a lower swinging arm, a mounting bracket, a speed reducing box, an upper swinging arm, a step ejector rod, an adjusting motor and an eccentric shaft; the eccentric shaft is mounted on the rack through a bearing; one end of the eccentric shaft is connected with an output shaft of the speed reducing box; an input end of the speed reducing box is connected with the adjusting motor; the upper swinging arm is sleeved on the eccentric shaft through the bearing; a first supporting lug and a second supporting lug are arranged at the lower end of the upper swinging arm; a third supporting lug and a fourth supporting lug are arranged at the upper end of the lower swinging arm; the first supporting lug is connected with the third supporting lug through a pin shaft; and the second supporting lug is connected with the fourth supporting lug through the pin shaft. The device provided by the invention has a compact and reasonable structure; the abrasion caused by moving in a step process can be avoided; and the device is safe and reliable to use, and is convenient to maintain.
Description
Technical field
The present invention relates to a kind of steel bar girder interval adjusting device, specifically for regulating steel bar girder step distance.
Background technology
Along with expanding economy, steel bar girder is more and more universal in the application of the industries such as oil, shipbuilding, building, digging, public way, the energy and decoration.
Steel bar girder a complete set of equipment, for form steel bar truss floor support plate on base plate, is applied to industry and civilian construction and structure.In the time of concrete floor slab construction, steel bar girder is layed on beam, to bear concrete gravity and working load; Meanwhile, steel bar girder is used as again the permanent cage of reinforcement of floor.
Steel bar girder interval adjusting device is the device for adjusting truss step distance.Traditional steel bar girder interval adjustment can be followed the movement of stepping mechanism and be moved because adjusting motor and reduction box, add that mobile speed is very fast, easily causes the wearing and tearing of rotating shaft and key, forms gap; More seriously, because violent vibrations can damage motor and reduction box.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, thereby a kind of steel bar girder interval adjusting device is provided, for the step distance of stable regulation steel bar girder, avoided the mobile wearing and tearing that cause in stepping process.
According to technical scheme provided by the invention, steel bar girder interval adjusting device comprises hydraulic Step Cylinder, lower swing arm, mounting bracket, reduction box, top link, stepping push rod, adjusts motor and eccentric shaft, hydraulic Step Cylinder fixes in frame by hinges fixing, and mounting bracket is bolted frame.Reduction box and adjustment motor are fixed on mounting bracket.Top link upper end is rotationally connected stepping push rod by bearing pin, and lower swing arm rear end connects hydraulic Step Cylinder by bearing pin, it is characterized in that: in frame, by bearing setting-up eccentricity axle, eccentric shaft one end connects reduction box output.The input of reduction box is connected with adjustment motor.Top link is contained on eccentric shaft by bearing holder (housing, cover), and top link lower end is provided with the first journal stirrup and the second journal stirrup, and lower swing arm upper end is provided with the 3rd journal stirrup and the 4th journal stirrup.The first journal stirrup connects the 3rd journal stirrup by bearing pin, and the second journal stirrup connects the 4th journal stirrup by bearing pin.
Described mounting bracket is provided with waist hole.
Compared with the prior art the present invention has the following advantages:
Compact conformation of the present invention, rationally; The mobile wearing and tearing that cause in stepping process are avoided; Safe and reliable, easy to maintenance.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Description of reference numerals: 1-hydraulic Step Cylinder, 2-lower swing arm, 3-mounting bracket, 4-reduction box, 5-top link, 6-stepping push rod, 7-adjust motor, 8-eccentric shaft, 9-the first journal stirrup, 10-the second journal stirrup, 11-the 3rd journal stirrup, 12-the 4th journal stirrup.
Detailed description of the invention
The present invention is below further described in connection with the embodiment in accompanying drawing:
As shown in Figure 1, the present invention mainly comprises hydraulic Step Cylinder 1, lower swing arm 2, mounting bracket 3, reduction box 4, top link 5, stepping push rod 6, adjusts motor 7 and eccentric shaft 8.
In frame, by bearing setting-up eccentricity axle 8, eccentric shaft 8 one end connect reduction box 4 outputs.The input of reduction box 4 is connected with adjustment motor 7.Described reduction box 4 and adjustment motor 7 are fixed on mounting bracket 3.Described mounting bracket 3 is provided with waist hole, when waist hole is fixed mounting bracket 3 in frame, can adjust position.
Top link 5 is contained on eccentric shaft 8 by bearing holder (housing, cover), and top link 5 upper ends are rotationally connected stepping push rod 6 by bearing pin.Top link 5 lower ends are provided with the first journal stirrup 9 and the second journal stirrup 10, and lower swing arm 2 upper ends are provided with the 3rd journal stirrup 11 and the 4th journal stirrup 12.The first journal stirrup 9 connects the 3rd journal stirrup 11, the second journal stirrups 10 by bearing pin and connects the 4th journal stirrup 12 by bearing pin.Lower swing arm 2 rear ends connect hydraulic Step Cylinder 1 by bearing pin.
Described hydraulic Step Cylinder 1 fixes in frame by hinges fixing.Described mounting bracket 3 is bolted frame.
Operating principle of the present invention is: when work, the piston rod of hydraulic Step Cylinder 1 stretches out, and promotes lower swing arm 2 and rotates, and lower swing arm 2 drives again top link 5 to rotate around eccentric shaft 8, and lower swing arm 5 drives again stepping push rod 6 to travel forward, thereby promotes truss stepping.In the time that needs are adjusted step pith, rotate and adjust motor 7, drive eccentric shaft 8 to rotate by reduction box 4, after adjustment finishes, eccentric shaft 8 keeps these positions motionless.Because eccentric shaft 8 is balance pivots of lower swing arm 2 and top link 5, turn over behind a position, the total travel of stretching out equally hydraulic Step Cylinder 1, the hunting range of top link 2 and lower swing arm 5 changes, thereby cause the proal change of distance of stepping push rod 6, played the effect of adjusting truss pitch.
Claims (2)
1. a steel bar girder interval adjusting device, comprise hydraulic Step Cylinder (1), lower swing arm (2), mounting bracket (3), reduction box (4), top link (5), stepping push rod (6), adjust motor (7) and eccentric shaft (8), hydraulic Step Cylinder (1) fixes in frame by hinges fixing, and mounting bracket (3) is bolted frame; Reduction box (4) and adjustment motor (7) are fixed on mounting bracket (3); Top link (5) upper end is rotationally connected stepping push rod (6) by bearing pin, lower swing arm (2) rear end connects hydraulic Step Cylinder (1) by bearing pin, it is characterized in that: in frame, by bearing setting-up eccentricity axle (8), eccentric shaft (8) one end connects reduction box (4) output; The input of reduction box (4) is connected with adjustment motor (7); It is upper that top link (5) is contained in eccentric shaft (8) by bearing holder (housing, cover), and top link (5) lower end is provided with the first journal stirrup (9) and the second journal stirrup (10), and lower swing arm (2) upper end is provided with the 3rd journal stirrup (11) and the 4th journal stirrup (12); The first journal stirrup (9) connects the 3rd journal stirrup (11) by bearing pin, and the second journal stirrup (10) connects the 4th journal stirrup (12) by bearing pin.
2. steel bar girder interval adjusting device as claimed in claim 1, is characterized in that: described mounting bracket (3) is provided with waist hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210494769.4A CN102936959B (en) | 2012-11-28 | 2012-11-28 | Device for adjusting section distance of steel bar truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210494769.4A CN102936959B (en) | 2012-11-28 | 2012-11-28 | Device for adjusting section distance of steel bar truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102936959A CN102936959A (en) | 2013-02-20 |
| CN102936959B true CN102936959B (en) | 2014-11-19 |
Family
ID=47695878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210494769.4A Expired - Fee Related CN102936959B (en) | 2012-11-28 | 2012-11-28 | Device for adjusting section distance of steel bar truss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102936959B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203050131U (en) * | 2012-11-28 | 2013-07-10 | 无锡威华电焊机制造有限公司 | Adjusting device for knot spacing of steel bar truss |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3440933A (en) * | 1966-12-02 | 1969-04-29 | Hammond Machinery Builders Inc | Adjustable stroke control device |
| EP0442429B1 (en) * | 1990-02-12 | 1994-11-30 | Grass Gmbh | Safety catch for a carriage guided along stair rail |
| BG104800A (en) * | 2000-09-26 | 2002-03-29 | Зафир ПЕТРОВ | Self-contained unit for energy generation |
| CN1807220A (en) * | 2006-01-11 | 2006-07-26 | 陈毅斌 | Eccentric type control device |
| CN202346655U (en) * | 2011-12-13 | 2012-07-25 | 中联重科股份有限公司 | Telescopic truss arm, arm section interval adjusting device thereof and engineering machinery |
| CN202482694U (en) * | 2012-01-04 | 2012-10-10 | 安徽翔艺达机械有限公司 | Mechanism for adjusting spacing of rollers of paper making machine |
-
2012
- 2012-11-28 CN CN201210494769.4A patent/CN102936959B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203050131U (en) * | 2012-11-28 | 2013-07-10 | 无锡威华电焊机制造有限公司 | Adjusting device for knot spacing of steel bar truss |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102936959A (en) | 2013-02-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20151128 |