CN220503603U - Screed plate heightening device during starting of paver - Google Patents
Screed plate heightening device during starting of paver Download PDFInfo
- Publication number
- CN220503603U CN220503603U CN202322006599.7U CN202322006599U CN220503603U CN 220503603 U CN220503603 U CN 220503603U CN 202322006599 U CN202322006599 U CN 202322006599U CN 220503603 U CN220503603 U CN 220503603U
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- CN
- China
- Prior art keywords
- hydraulic
- hydraulic cylinder
- cushion block
- sensor
- cylinder
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 description 5
- 239000010426 asphalt Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a screed plate heightening device for starting a paver, which comprises an electronic computer, an electrohydraulic digital valve, at least two sets of hydraulic heightening mechanisms and a hydraulic oil supply system, wherein the hydraulic heightening mechanisms comprise a supporting base, a hydraulic cylinder, a cushion block and a sensor; the hydraulic cylinder, the electrohydraulic digital valve and the hydraulic oil supply system form a hydraulic loop, a piston rod of the hydraulic cylinder faces downwards vertically, the end part of the piston rod of the hydraulic cylinder is fixedly connected with the supporting base, the cushion block is welded and fixed on a cylinder body of the hydraulic cylinder and can move up and down along with the lifting of the cylinder body, the sensor is installed on the cylinder body of the hydraulic cylinder and can detect the lifting height of the cushion block, and the electrohydraulic digital valve and the sensor are respectively connected with the electronic computer. According to the utility model, the lifting height of the hydraulic cylinder and the cushion block is controlled by the electronic computer, so that the cushion block is lifted to the height required by the screed plate when paving and starting, smooth and tight transverse working seam joint is ensured, the road surface seam flatness is ensured, the travelling comfort and safety are improved, and the service life of the road surface is prolonged.
Description
Technical Field
The utility model belongs to the technical field of pavement asphalt paving, and particularly relates to a screed plate heightening device when a paver starts.
Background
The paving is interrupted due to working gap in the asphalt paving process, such as working intermittence, asphalt replenishment and the like, or transverse cold joints are generated when the construction is finished on the same day. Poor seam processing will have two consequences: firstly, cracks are easily generated due to insufficient compactness or insufficient bonding strength at joints, surface water of a rainwater-contacting air path can infiltrate into a base layer through the cracks and gradually increase, high-pressure water flow is formed under the action of driving load, fine materials on the surface of the base layer are flushed into slurry, so that an asphalt concrete surface layer is separated from the base layer, and the asphalt concrete surface layer is damaged; secondly, influence the roughness, cause seam department to jump the car, and the jump leads to the impact of vehicle to the road surface also to be the factor that shortens road surface life. The handling of the seam is therefore of vital importance.
At present, when asphalt paving starts, manual wood blocks are usually applied to the screed plate for lifting, the wood blocks are more random in height, so that the jump of the joint or insufficient bonding strength is caused by unsmooth joint of a transverse cold joint, the road surface flatness and the service life of the road surface are influenced, and meanwhile, the jump of the joint also influences the driving safety.
Disclosure of Invention
The utility model aims to provide a screed lifting device for a paver, which has a simple structure and can accurately control the accurate height of a cushion block when the cushion block reaches the paving start.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: the utility model provides a screed bed hedgehopping device when paver starts which characterized in that: the hydraulic lifting mechanism comprises a supporting base, a hydraulic cylinder, a cushion block and a sensor; the hydraulic cylinder, the electrohydraulic digital valve and the hydraulic oil supply system form a hydraulic loop, a piston rod of the hydraulic cylinder faces downwards vertically, the end part of the piston rod of the hydraulic cylinder is fixedly connected with the supporting base, the cushion block is welded and fixed on a cylinder body of the hydraulic cylinder and can move up and down along with the lifting of the cylinder body, the sensor is installed on the cylinder body of the hydraulic cylinder and can detect the lifting height of the cushion block, and the electrohydraulic digital valve and the sensor are respectively connected with the electronic computer.
Further, the sensor is a laser ranging sensor.
Further, the hydraulic heightening mechanism is provided with two sets.
The beneficial effects of the utility model are as follows: by adopting the structure, the lifting height of the hydraulic cylinder and the cushion block is controlled by the electronic computer, so that the cushion block is lifted to the height required by the screed plate when paving and starting, smooth and tight transverse working seam joints are ensured, the flatness of the road surface seam joints is ensured, the travelling comfort and safety are improved, and the service life of the road surface is prolonged.
Drawings
Fig. 1 is a schematic block diagram of the structure of the present utility model.
Fig. 2 is a schematic structural view of a hydraulic elevating mechanism according to the present utility model.
Fig. 3 is a schematic view of a state in which two sets of hydraulic elevating mechanisms support an ironing board of the paver in use.
Description of the embodiments
As shown in figures 1 and 2, the screed lifting device for the paver during starting comprises an electronic computer 1, an electrohydraulic digital valve 2 and at least two sets of hydraulic lifting mechanisms 3. The hydraulic elevating mechanism 3 comprises a supporting base 31, a hydraulic cylinder, a cushion block 32 and a sensor 33. The hydraulic cylinder, the electrohydraulic digital valve 2 and the hydraulic oil supply system 4 are connected through pipelines to form a hydraulic loop. The electrohydraulic digital valve 2 is connected with the electronic computer 1. The piston rod 34 of the hydraulic cylinder faces vertically downwards and is fixedly connected at its end to the support base 31. The cushion block 32 is welded and fixed on a cylinder body 35 of the hydraulic cylinder; the pad 32 can move up and down along with the lifting of the cylinder body 35, and the sensor 33 is arranged on the cylinder body 35 of the hydraulic cylinder and can detect the lifting height of the pad.
Further, the sensor 33 is a laser ranging sensor.
Specifically, the hydraulic heightening mechanism 3 is provided with two sets. When in use, the two sets of hydraulic heightening mechanisms 3 are arranged at intervals and jointly support the screed of the paver.
When the hydraulic lifting device is used, two sets of hydraulic lifting mechanisms 3 are arranged at intervals and are arranged below a screed 6 of a paver 5, then the height of a cushion block required by the screed 6 when paving is started is calculated, an elevating value is input through an electronic computer 1, the elevation of a hydraulic cylinder is controlled through an electrohydraulic digital valve 2, when the distance measured by a laser ranging sensor is the elevating value, the height of the cushion block is raised to a required position, and the electronic computer 1 controls the hydraulic cylinder to stop acting. Finally, the driver of the paver controls the screed 6 to descend and put on the cushion blocks of the two sets of hydraulic heightening mechanisms 3 (shown in fig. 3); after the completion, the paving operation can be performed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a screed bed hedgehopping device when paver starts which characterized in that: the hydraulic lifting mechanism comprises a supporting base, a hydraulic cylinder, a cushion block and a sensor; the hydraulic cylinder, the electrohydraulic digital valve and the hydraulic oil supply system form a hydraulic loop, a piston rod of the hydraulic cylinder faces downwards vertically, the end part of the piston rod of the hydraulic cylinder is fixedly connected with the supporting base, the cushion block is welded and fixed on a cylinder body of the hydraulic cylinder and can move up and down along with the lifting of the cylinder body, the sensor is installed on the cylinder body of the hydraulic cylinder and can detect the lifting height of the cushion block, and the electrohydraulic digital valve and the sensor are respectively connected with the electronic computer.
2. The screed sole up device for a start of a paver according to claim 1, wherein: the sensor is a laser ranging sensor.
3. The screed sole up device for starting a paver according to claim 1 or 2, wherein: the hydraulic heightening mechanism is provided with two sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006599.7U CN220503603U (en) | 2023-07-28 | 2023-07-28 | Screed plate heightening device during starting of paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322006599.7U CN220503603U (en) | 2023-07-28 | 2023-07-28 | Screed plate heightening device during starting of paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220503603U true CN220503603U (en) | 2024-02-20 |
Family
ID=89870171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322006599.7U Active CN220503603U (en) | 2023-07-28 | 2023-07-28 | Screed plate heightening device during starting of paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220503603U (en) |
-
2023
- 2023-07-28 CN CN202322006599.7U patent/CN220503603U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |