CN201158795Y - Road face expansion joint cutter - Google Patents
Road face expansion joint cutter Download PDFInfo
- Publication number
- CN201158795Y CN201158795Y CNU2007200772430U CN200720077243U CN201158795Y CN 201158795 Y CN201158795 Y CN 201158795Y CN U2007200772430 U CNU2007200772430 U CN U2007200772430U CN 200720077243 U CN200720077243 U CN 200720077243U CN 201158795 Y CN201158795 Y CN 201158795Y
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- wheel
- door frame
- screw mandrel
- cutting machine
- expansion joint
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Abstract
The utility model relates to a basic construction apparatus, in particular to the cutting, crack expanding and chamfering hob equipment of concrete pavement dilatation joint, namely a pavement dilatation joint cutting machine, which comprises a rear wheel and a main body of a saw bit, and also comprises a door frame which is fixed on the main body of the seam cutting machine, and a pair of front wheels which are respectively mounted on the lower portions on both sides of the door frame and an adjusting device thereof. When a cutting device is running on a long-distance line, the pavement dilatation joint cutting machine can control straightness deviation in a tolerance range, and meanwhile, can adjust the relative height between the cutting device and the pavement to achieve the purpose of regulating the saw bit to guarantee construction quality.
Description
Technical field
The utility model relates to infrastructure equipment, and cutting, the expansion that relates in particular to a kind of concrete road surface expansion joint stitched, the special control device of chamfering equipment, also is a kind of attachment device that is retrofitted in order to satisfy the construction needs on the general joint-cutting equipment.
Background technology
The pavement expansion joint cutting is the construction technology of a widespread usage, is widely used in fields such as building, airport, road, bridge, is used to solve the problem of materials of principle of expanding with heat and contracting with cold generation and the extension in control crack.For the airport, the pavement expansion joint cutting also has been very ripe technology in the construction of airfield runway and in safeguarding, every relevant national regulation and standard all exist.There is certain drawback in the construction technology pattern at the shrinkage joint of domestic for a long time airfield runway; normally cutting 4mm induces seam earlier; and then seam is expanded in cutting; owing to multiple reason, the shrinkage joint joint-cutting in the zone that aircraft flows such as the airfield runway of our country and apron are big also adopts the construction technology that expands seam, chamfering.
Since the landing that airfield runway is all bearing a large amount of aircrafts every day, the also inevitable impact of bearing a large amount of high load capacities every day in the edge at shrinkage joint so.Because the shrinkage joint of runway road, domestic airport face mostly is 90 ° rectangular shaped at cutting seam both sides section, like this, no matter be to analyze from stress distribution and long-term carrying operation result, the edge of joint-cutting is to be easy to generate place broken and that break most.Like this, originally, the part that was used to control the crack has but been brought the generation in new crack.Cause the increase of later maintenance workload, even have influence on the normal operation of runway.So, how to make the shrinkage joint reduce ruined probability and cycle as far as possible and directly have influence on the maintenance cost on airport and whether can improve directly economic interests such as airport aircraft flow.Equally, the road face of road such as speedway, various cycling tracks racing track also faces similar problem.
Countries such as America and Europe just begin the shrinkage joint of airfield runway is carried out the construction of chamfer angle technique in the seventies in last century.On the main commercial airport of the U.S., the joint-cutting chamfering has been become a kind of necessary construction technology at present at runway and airport hardstand.Normally cut 4mm abroad earlier and induce seam, and then cutting expansion seam, carry out chamfering to expanding to stitch again at last, need shutdown this moment, change saw blade, adjust depth of cut, operation is more loaded down with trivial details.
Present joint-cutting equipment both domestic and external is four front-wheels of design and installation all generally, and latter two preceding wheel diameter and wheelspan are all bigger, play the load-bearing effect, and the back two-wheeled plays driving wheel again in the self-propelled cutting equipment; Preceding two wheel diameters and wheelspan all less (if design size adds installation and the work that conference influences cast-cutting saw slice).There is an introductory note guide wheel to guarantee the straightness accuracy of walking at the saw blade front end.Such joint-cutting equipment can reach construction requirement substantially when less demanding transverse joint of cutting straight line degree or short distance longitudinal joint, but in the long requirement that can make just that apart from the straight line joint-cutting, when expanding seam, chamfering the long vertical masonry joint that cuts out does not reach straightness accuracy owing to a little bias of little guide wheel; Simultaneously, have quite a few machine weight to carry, and preceding two-wheeled can not adjust, under the local irregular situation of road face, make joint-cutting perpendicularity deviation or chamfering occur and drawbacks such as the both sides chamfering is asymmetric occur by saw blade because the diameter and the wheelspan of preceding two-wheeled are less.
Summary of the invention
The utility model is intended to solve the defective of described existing pavement expansion joint cutting machine, and a kind of pavement expansion joint cutting machine is provided.The utility model can Cutting Control equipment long during apart from straight line moving the straightness accuracy Deviation Control in allowed band, can adjust simultaneously cutting equipment and road face relative altitude reach regulate saw blade purpose with the assurance construction quality.
The utility model is achieved in that a kind of pavement expansion joint cutting machine, described joint cutter comprises the body that has trailing wheel and saw blade, it comprises that also one is fixed on the door frame on the joint cutter body and is installed in a pair of front-wheel and the adjusting device thereof of bottom, door frame both sides respectively.
Described pavement expansion joint cutting machine, described front-wheel adjusting device is weldingly fixed on the described door frame, and it comprises: have holddown groove screw mandrel, adjust screw set, screw mandrel locking nut, adjust nut, front-wheel support, front-wheel, wheel shaft, two bearings and interior external bushing thereof up and down; Described leading screw passes to be adjusted screw mandrel cover lower end and connects front-wheel support, and the described nut sleeve of adjusting up and down is contained on the described screw mandrel and divides and is listed in the two ends up and down of adjusting the screw mandrel cover, and fixes its position by the screw mandrel locking nut;
Described front-wheel connects the sidewall of front-wheel support rotationally by wheel shaft, the bearing of external bushing in front-wheel and wheel shaft two ends are provided with and have.
Described pavement expansion joint cutting machine, the width of described door frame are greater than the wheelspan of trailing wheel, and the diameter of two front-wheels is greater than the diameter of trailing wheel simultaneously; And the axis of front-wheel is on same straight line, and the axis of this axis and saw blade is on same vertical cross section.
Described pavement expansion joint cutting machine, described two preceding wheel outer surfaces are colloidal materials, the front-wheel outer rim does not have radian.
The utility model is installed a cover gantry type front-wheel mechanism in the vertical cross section position of joint-cutting equipment saw blade axis, it comprises the door frame that is fixed on the cutting equipment main frame, the width of door frame is greater than the wheelspan of trailing wheel, and the diameter of two front-wheels of the utility model design simultaneously is also greater than the diameter of trailing wheel; And the axis that will guarantee two front-wheels is on same straight line, simultaneously this axis will with the axis of saw blade on same vertical cross section.So just can guarantee the straightness accuracy of walking.Each welded and installed one secondary front-wheel adjusting device of the bottom at door frame two ends, front-wheel adjusting device comprise the screw mandrel that has holddown groove, adjust screw set, adjust nut up and down, the interior external bushing of screw mandrel locking nut, front-wheel support, front-wheel, wheel shaft, two bearings, bearing etc.The adjusting device of this two secondary front-wheel is relatively independent, that is two front-wheels can be adjusted respectively according to road face situation.When constructing like this, adjust the nut Cutting Control relative altitude that expands seam and chamfering equipment and road face easily up and down by regulating fine setting, thereby reach the purpose of regulating saw blade, provide convenience, guarantee the quality of joint-cutting, chamfering for finishing the work of expansion seam chamfering simultaneously.
Description of drawings
Below, further specify the utility model in conjunction with the accompanying drawings:
Fig. 1 is the utility model elevation;
Fig. 2 is the utility model lateral view;
Fig. 3 is described gantry type front-wheel adjusting device elevation;
Fig. 4 is described front-wheel adjusting device elevation.
The specific embodiment
As depicted in figs. 1 and 2, a kind of pavement expansion joint cutting machine, described joint cutter comprises the body 17 that has trailing wheel and saw blade B, and it comprises that also one is fixed on the joint cutter body 17 door frame 1 and is installed in a pair of front-wheel 10 and the adjusting device thereof of bottom, door frame 1 both sides respectively.
Door frame 1 is to be welded after two steel plates are converted into the size of requirement, be drilled with four installing holes 3 on the two sides steel plate 2, door frame 1 is fixed on the joint-cutting apparatus body with bolt by installing hole, each welded and installed one secondary front-wheel adjusting device (as shown in Figure 3) of the bottom at door frame 1 two ends, from Fig. 4 as seen, the front-wheel adjusting device comprise the screw mandrel 4 that has holddown groove, adjust screw set 6, adjust nut 5,8 up and down, the interior external bushing 14,15 of screw mandrel locking nut 7, front-wheel support 9,11, front-wheel 10, wheel shaft 13, two bearings 16, bearing.Wherein adjusting screw set 6 is welded on the door frame 1.Described leading screw 4 passes to be adjusted screw mandrel and overlaps 6 lower ends and connect front-wheel support 9,11, and the described nut 5,8 of adjusting up and down is sleeved on the described screw mandrel 4 and divides and is listed in the two ends up and down of adjusting screw mandrel cover 6, and fixes its position by screw mandrel locking nut 7; Described front-wheel 10 connects the sidewall of front-wheel support 9,11 rotationally by wheel shaft 13, the bearing 16 of external bushing 14,15 in front-wheel 10 and wheel shaft 13 two ends are provided with and have.
The axis that require to guarantee two front-wheels 10 during installation on the same straight line simultaneously this axis will with the axis of saw blade B on same vertical cross section, as shown in Figure 3.
Both sides front-wheel 10 can independently be adjusted.If need make when lifting on the joint cutter, can unclamp and adjust nut 8 down, adjust (promptly turning clockwise) and go up and adjust nut 5, door frame 1 is fixedlyed connected with the body of joint-cutting equipment because screw set 6 is welded on the door frame 1, so this side door frame 4 and joint-cutting equipment are lifted when tightening adjustment nut 5 simultaneously.When adjusting to desired height, utilize locking nut 7 to pin with leading screw, tighten the following adjustment nut 8 that had before unclamped at last adjusting screw set 6.In like manner, if when joint-cutting equipment is moved down, can unclamp and adjust nut 5, adjust (promptly turning clockwise) and adjust nut 8 down, support is fixedlyed connected with the body of joint cutter owing to adjust that screw set 6 is welded on the support, so this side door frame 1 and joint-cutting equipment are moved down simultaneously when tightening down the adjustment nut.When adjusting to desired height, utilize locking nut 7 that screw set 6 and leading screw 4 are pinned, tighten going up of before having unclamped at last and adjust nut 5.Thereby reach the purpose of regulating saw blade B.
Claims (4)
1. pavement expansion joint cutting machine, described cutting machine includes the body of trailing wheel and saw blade, it is characterized in that, it also comprises a gantry type front-wheel and an adjusting device thereof, and this device comprises the door frame that is fixed on the joint cutter body and is installed in a pair of front-wheel and the adjusting device thereof of bottom, door frame both sides respectively.
2, pavement expansion joint cutting machine according to claim 1, it is characterized in that, described front-wheel adjusting device is weldingly fixed on the described door frame, and it comprises: have holddown groove screw mandrel, adjust screw set, screw mandrel locking nut, adjust nut, front-wheel support, front-wheel, wheel shaft, two bearings and interior external bushing thereof up and down; Described leading screw passes to be adjusted screw mandrel cover lower end and connects front-wheel support, and the described nut sleeve of adjusting up and down is contained on the described screw mandrel and divides and is listed in the two ends up and down of adjusting the screw mandrel cover, and fixes its position by the screw mandrel locking nut;
Described front-wheel connects the sidewall of front-wheel support rotationally by wheel shaft, the bearing of external bushing in front-wheel and wheel shaft two ends are provided with and have.
3, pavement expansion joint cutting machine according to claim 1 and 2 is characterized in that, the width of described door frame is greater than the wheelspan of trailing wheel, and the diameter of two front-wheels is greater than the diameter of trailing wheel simultaneously; And the axis of front-wheel is on same straight line, and the axis of this axis and saw blade is on same vertical cross section.
4, wheel apparatus before the gantry type of institute according to claim 1 and 2 pavement expansion joint cutting equipment is characterized in that described two preceding wheel outer surfaces are colloidal materials, and the front-wheel outer rim does not have radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772430U CN201158795Y (en) | 2007-12-25 | 2007-12-25 | Road face expansion joint cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772430U CN201158795Y (en) | 2007-12-25 | 2007-12-25 | Road face expansion joint cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201158795Y true CN201158795Y (en) | 2008-12-03 |
Family
ID=40109385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200772430U Expired - Fee Related CN201158795Y (en) | 2007-12-25 | 2007-12-25 | Road face expansion joint cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201158795Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251463A (en) * | 2010-04-16 | 2011-11-23 | 利勃海尔比伯拉赫有限公司 | Self-propelled surface cutter having fixed support of the rotary cutter drive |
| CN106948246A (en) * | 2017-03-31 | 2017-07-14 | 成都市德容建筑劳务有限公司 | Rail mounted road cutting machine |
-
2007
- 2007-12-25 CN CNU2007200772430U patent/CN201158795Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251463A (en) * | 2010-04-16 | 2011-11-23 | 利勃海尔比伯拉赫有限公司 | Self-propelled surface cutter having fixed support of the rotary cutter drive |
| CN102251463B (en) * | 2010-04-16 | 2015-12-02 | 利勃海尔传动部件比伯拉赫有限公司 | There is the self-propelled surface cutting machine of the securing supports of rotary cutter driver |
| CN106948246A (en) * | 2017-03-31 | 2017-07-14 | 成都市德容建筑劳务有限公司 | Rail mounted road cutting machine |
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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: 20081203 Termination date: 20161225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |