CN109883865B - A road surface basic unit measuring device for highway construction - Google Patents
A road surface basic unit measuring device for highway construction Download PDFInfo
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- CN109883865B CN109883865B CN201910136513.8A CN201910136513A CN109883865B CN 109883865 B CN109883865 B CN 109883865B CN 201910136513 A CN201910136513 A CN 201910136513A CN 109883865 B CN109883865 B CN 109883865B
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Abstract
The invention discloses a pavement base measuring device for highway construction, which can realize on-site detection of the surface hardness of a pavement base and can also sample the internal condition of the pavement base, the internal structure of the pavement base cannot be damaged in the sampling process, the internal condition of the pavement base can be conveniently analyzed and detected, on-site plugging can be realized after the sampling, and the plugging is carried out while a sampling drill bit is pulled out, so that the problem of damage to the internal structure of the pavement after a sampling drill cylinder is pulled out is solved, the damage and influence of the sampling on the pavement base are greatly reduced, and the reliability of the pavement base is ensured. When the shutoff, can effectually prevent the landing of the sample of sample, guarantee the integrality of sample, but also conveniently detect the hardness of pavement basic unit.
Description
Technical Field
The invention relates to a pavement base measuring device for highway construction, and belongs to the technical field of highway construction detection.
Background
After the highway construction is completed, the construction condition generally needs to be checked and accepted. At the time of acceptance, the condition of the road base is evaluated. The conventional evaluation of the road base course of the highway generally comprises sampling and other operations at a sampling point, drilling by using a drill bit during sampling, and then measuring the base course pavement condition of the sampling point. When the mode is used for sampling the sampling point of the road surface, the structure of the road surface needs to be damaged, and the road surface structure is locally repaired after being damaged.
The invention provides a pavement base measuring device for highway construction aiming at the problems so as to improve the convenience of detection and measurement of the pavement base for highway construction.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a pavement base measuring device for highway construction is characterized by comprising a rack, a hydraulic pressing component, a rotary drilling component, a sampling drill cylinder, a hardness detection head and a sample outlet and hole sealing component, wherein the rack is fixedly provided with the hydraulic pressing component which vertically extends downwards, the output end of the hydraulic pressing component is fixedly provided with the rotary drilling component, and the rotary output end of the rotary drilling component is connected with the sampling drill cylinder;
the lower end of the sampling drill cylinder is detachably connected with the hardness detection head;
the downward pressure of the hydraulic downward pressing assembly is controllably adjusted, so that the downward pressure of the hardness detection head is controlled by using the hydraulic downward pressing assembly, and the hardness detection of the pavement base is further realized;
the sampling drill cylinder is a hollow structure provided with a central hole, the central hole is a sampling hole, the sampling drill cylinder is also provided with plugging holes arranged around the central hole, and the axes of the plugging holes are arranged in parallel with the axis of the central hole;
the downthehole detachable threaded connection of shutoff has the double-screw bolt, and when adopting hydraulic pressure to push down the subassembly, rotatory the brill establishes the subassembly and makes the sample bores a section of thick bamboo and stretches into in the road surface basal layer, double-screw bolt screw thread shutoff connect in the shutoff of a sample bores a section of thick bamboo is downthehole, before boring a section of thick bamboo with this sample and take out in the road surface basal layer, will the double-screw bolt screw thread back-out the shutoff hole, and utilize a kind hole sealing subassembly is connected the shutoff hole, so that it is right the hole of the sample position of road surface basal layer carries out the.
Further, as a preferred option, the bottom of the sampling drill cylinder is provided with an auxiliary sample outlet sleeve, the auxiliary sample outlet sleeve is of an annular structure, the upper end of the inner hole wall of the auxiliary sample outlet sleeve is provided with a conical hole groove with a large upper end and a small lower end, the inner side of the bottom of the sampling drill cylinder is provided with a conical ring cavity with a small upper end and a large lower end, the conical hole groove of the auxiliary sample outlet sleeve is abutted against and matched on the conical ring cavity, and the conical surface of the conical ring cavity inclines towards the radial center of the sampling drill cylinder; and the upper end of the auxiliary sample outlet sleeve is provided with a small threaded hole matched with the lower end of the stud in a threaded manner, when the stud is screwed out of the plugging hole, the auxiliary sample outlet sleeve is separated from the sampling drill cylinder, and when plugging agent is injected, the plugging agent flows obliquely from the cavity wall of the conical annular cavity to the radial center of the bottom of the sampling drill cylinder, so that the sampling drill cylinder moves upwards, and the sample is ensured to be located in the sampling drill cylinder.
Further, preferably, the central hole of the sampling drill cylinder is a tapered hole with a large upper part and a small lower part, the taper of the central hole is 1-2 degrees, and the top of the stud is provided with an operating hexagonal head.
Further, as preferred, the subassembly includes two parallel arrangement's hydraulic drive pole, hydraulic stem seat and drive seat under the hydraulic pressure, wherein, the hydraulic drive pole is fixed on the hydraulic stem seat, two adopt between the hydraulic stem seat the connecting plate links together, the connecting plate is fixed in the frame, the output of hydraulic drive pole is connected to the drive seat, the rotary drill is established the subassembly and is fixed the setting on the drive seat.
Further preferably, the rotary drilling assembly comprises a driving motor, a driving gear, a driven gear, a rotary driving cylinder and a support frame, wherein the support frame is fixedly arranged on the driving seat, the support frame is fixedly provided with the driving motor, the output end of the driving motor is provided with a driving gear, the rotary driving cylinder is provided with a driven gear, the driven gear is in meshed transmission with the driving gear, the rotary driving cylinder vertically penetrates through and is supported on the supporting frame and the driving seat by adopting a bearing, and extends downwards to form the driving seat, the lower end of the rotary driving cylinder is provided with a connecting flange, the rotary driving cylinder is provided with a center hole and a plugging hole which are the same as the sampling drill cylinder in structural position, and the rotary driving cylinder is in sealed coaxial butt joint with the sampling drill cylinder through a connecting flange.
Preferably, the number of the driving motors is two, the driving motors are asymmetrically arranged around the rotary driving cylinder, and the meshing gap between the driving gear and the driven gear is larger than the error value of inconsistent control steps between the two driving motors, so that the rotary driving cylinder is driven to rotate by the two driving motors.
Furthermore, as preferred, go out appearance hole sealing subassembly includes compounding jar, pump sending pump, plate for distribution, control valve, joint flange and attach fitting, wherein, compounding jar is connected with the pump sending pump through the pump sending pipe, the discharge end of pump sending pump is connected to the plate for distribution, each discharge end of plate for distribution adopts the pump sending pipe to be connected with attach fitting, each attach fitting is fixed on the joint flange, just attach fitting with rotate on the driving barrel on the shutoff hole sealed fit, the plate for distribution with be provided with on the pump sending pipe between the attach fitting the control valve, the joint flange with rotate the ring flange sealing connection of driving barrel upper end.
Further, as preferred, the lower extreme that hardness detected the head is spherical, just the upper end that hardness detected the head is provided with positioning groove, positioning groove cover is established the lower extreme of a sample brill section of thick bamboo, just the upper end that hardness detected the head is provided with radial locking bolt, radial locking bolt will hardness detects the head and locks the lower extreme of a sample brill section of thick bamboo.
Further, as preferred, the lower terminal surface of sample brill section of thick bamboo is the cutting edge structure, the upper end of rotation drive cylinder still be provided with attach fitting carries out the sealed cooperation seat that cooperates.
Preferably, the rack is fixedly arranged on a moving vehicle, and the moving vehicle is further provided with a controller which controls the actions of the components.
Compared with the prior art, the invention has the beneficial effects that:
the invention can realize the on-site detection of the surface hardness of the pavement base layer, can also sample the internal condition of the pavement base layer, can not damage the internal structure of the pavement base layer in the sampling process, is convenient for analyzing and detecting the internal condition of the pavement base layer, can realize on-site plugging after the sampling, and can prevent the damage of the internal structure of the pavement caused by pulling out the sampling drill bit by pulling out and plugging, thereby greatly reducing the damage and influence of the sampling on the pavement base layer and ensuring the reliability of the pavement base layer. When the shutoff, can effectually prevent the landing of the sample of sample, guarantee the integrality of sample, but also conveniently detect the hardness of pavement basic unit.
Drawings
FIG. 1 is a schematic structural diagram of a pavement base measuring device for highway construction according to the present invention;
FIG. 2 is a schematic structural diagram of a sample outlet and hole sealing assembly of the pavement base measuring device for highway construction, according to the present invention;
FIG. 3 is a schematic diagram of a sampling drill cylinder of the pavement base measuring device for highway construction during drilling;
FIG. 4 is a schematic structural view of a sampling drill cylinder of the device for measuring the base course of a highway construction with a stud detached;
fig. 5 is a schematic view of an arrangement structure of a driving motor of a pavement base measuring apparatus for highway construction according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a pavement base measuring device for highway construction comprises a frame (not shown in the figure), a hydraulic pressing component, a rotary drilling component, a sampling drill cylinder 14, a hardness detection head 15 and a sample outlet hole sealing component, wherein the frame is fixedly provided with the hydraulic pressing component which vertically extends downwards, the output end of the hydraulic pressing component is fixedly provided with the rotary drilling component, and the rotary output end of the rotary drilling component is connected with the sampling drill cylinder 14;
the lower end of the sampling drill cylinder 14 is detachably connected with the hardness detection head 15;
the downward pressure of the hydraulic downward pressing assembly is controllably adjusted, so that the downward pressure of the hardness detection head 15 is controlled by using the hydraulic downward pressing assembly, and the hardness detection of the pavement base is further realized;
the sampling drill cylinder is a hollow structure provided with a central hole 22, the central hole 22 is a sampling hole, the sampling drill cylinder is also provided with blocking holes 27 arranged around the central hole, and the axes of the blocking holes 27 are arranged in parallel with the axis of the central hole;
the downthehole detachable threaded connection of shutoff has double-screw bolt 20, and when adopting hydraulic pressure to push down the subassembly, the rotatory subassembly of establishing of boring makes the sample bores a section of thick bamboo and stretches into in the road surface basal layer, double-screw bolt 20 screw thread shutoff connect in the shutoff hole 27 of a sample bore a section of thick bamboo, before boring a section of thick bamboo with this sample and taking out in the road surface basal layer, will double-screw bolt 20 screw thread back-out the shutoff hole, and utilize it connects to go out a sample hole sealing subassembly the shutoff hole 27, so that it is right the hole of the sample position of road surface basal layer carries out the shutoff.
In this embodiment, the bottom of the sampling drill cylinder is provided with an auxiliary sample outlet sleeve 23, the auxiliary sample outlet sleeve 23 is of an annular structure, the upper end of the inner hole wall of the auxiliary sample outlet sleeve 23 is provided with a conical hole groove with a large upper end and a small lower end, the inner side of the bottom of the sampling drill cylinder is provided with a conical ring cavity 24 with a small upper end and a large lower end, the conical hole groove of the auxiliary sample outlet sleeve is abutted against and matched on the conical ring cavity 24, and the conical surface of the conical ring cavity inclines towards the radial center of the sampling drill cylinder; and the upper end of the auxiliary sample outlet sleeve 23 is provided with a small threaded hole matched with the lower end 25 of the stud in a threaded manner, when the stud is screwed out of the plugging hole, the auxiliary sample outlet sleeve is separated from the sampling drill cylinder, and when plugging agent is injected, the plugging agent flows obliquely from the cavity wall of the conical annular cavity to the radial center of the bottom of the sampling drill cylinder, so that the sampling drill cylinder moves upwards, and the sample is ensured to be positioned in the sampling drill cylinder.
The center hole of the sampling drill cylinder is a tapered hole with a large upper part and a small lower part, the taper of the center hole is 1-2 degrees, and the top of the stud is provided with an operation hexagonal head 19.
The hydraulic pressure pushes down the subassembly and includes two parallel arrangement's hydraulic drive pole 3, hydraulic stem seat 4 and drive seat 12, wherein, hydraulic drive pole 3 is fixed on the hydraulic stem seat 4, two adopt between the hydraulic stem seat 4 the connecting plate links together, the connecting plate is fixed in the frame, hydraulic drive pole's output is connected to drive seat 12, the rotatory subassembly of establishing of boring is fixed to be set up on the drive seat 12.
The rotary drilling assembly comprises a driving motor, a driving gear 7, a driven gear 8, a rotary driving cylinder 9 and a support frame 10, wherein the support frame 10 is fixedly arranged on the driving seat 12, the driving motor is fixedly arranged on the support frame 10, the output end of the driving motor is provided with a driving gear 7, the rotary driving cylinder 9 is provided with a driven gear 8, the driven gear is in meshed transmission with the driving gear, the rotary driving cylinder 9 vertically penetrates through and is supported on the supporting frame and the driving seat by adopting a bearing, and extends downwards to form the driving seat, the lower end of the rotary driving cylinder 9 is provided with a connecting flange 13, the rotary driving cylinder is provided with a center hole and a plugging hole which are the same as the sampling drill cylinder in structural position, and the rotary driving cylinder is in sealed coaxial butt joint with the sampling drill cylinder through a connecting flange.
As shown in fig. 5, the number of the driving motors is two, and the driving motors are asymmetrically arranged around the rotation driving cylinder, and the meshing gap between the driving gear and the driven gear is larger than the error value of inconsistent control pace between the two driving motors, so that the two driving motors are used for driving the rotation driving cylinder to rotate.
Go out appearance hole sealing subassembly includes compounding jar 1, pump sending 2, distribution plate 16, control valve 17, joint flange 5 and attach fitting, wherein, compounding jar 1 is connected with pump sending 2 through the pump sending pipe, the discharge end of pump sending 2 is connected to distribution plate 16, each discharge end of distribution plate 16 adopts the pump sending pipe to be connected with attach fitting, each attach fitting fixes on the joint flange 5, just attach fitting with rotate on the driving barrel the shutoff hole is sealed to be cooperated, distribution plate with be provided with on the pump sending pipe between the attach fitting control valve 17, the joint flange 5 with rotate the ring flange sealing connection of driving barrel 9 upper end.
The lower extreme that hardness detected head 15 is spherical, just the upper end that hardness detected the head is provided with positioning groove, positioning groove cover is established the lower extreme that the section of thick bamboo was bored in the sample, just the upper end that hardness detected the head is provided with radial locking bolt 26, radial locking bolt will hardness detects the head locking and is in the lower extreme that the section of thick bamboo was bored in the sample.
The lower end face of a drill cylinder body 21 of the sampling drill cylinder 14 is of a blade structure, and the upper end of the rotary driving cylinder is also provided with a sealing matching seat 18 matched with the connecting joint.
In order to move conveniently, the rack is fixedly arranged on the moving vehicle, and the moving vehicle is further provided with a controller which controls the action of each component.
The invention can realize the on-site detection of the surface hardness of the pavement base layer, can also sample the internal condition of the pavement base layer, can not damage the internal structure of the pavement base layer in the sampling process, is convenient for analyzing and detecting the internal condition of the pavement base layer, can realize on-site plugging after the sampling, and can prevent the damage of the internal structure of the pavement caused by pulling out the sampling drill bit by pulling out and plugging, thereby greatly reducing the damage and influence of the sampling on the pavement base layer and ensuring the reliability of the pavement base layer. When the shutoff, can effectually prevent the landing of the sample of sample, guarantee the integrality of sample, but also conveniently detect the hardness of pavement basic unit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A pavement base measuring device for highway construction is characterized by comprising a rack, a hydraulic pressing component, a rotary drilling component, a sampling drill cylinder, a hardness detection head and a sample outlet and hole sealing component, wherein the rack is fixedly provided with the hydraulic pressing component which vertically extends downwards, the output end of the hydraulic pressing component is fixedly provided with the rotary drilling component, and the rotary output end of the rotary drilling component is connected with the sampling drill cylinder;
the lower end of the sampling drill cylinder is detachably connected with the hardness detection head;
the downward pressure of the hydraulic downward pressing assembly is controllably adjusted, so that the downward pressure of the hardness detection head is controlled by using the hydraulic downward pressing assembly, and the hardness detection of the pavement base is further realized;
the sampling drill cylinder is a hollow structure provided with a central hole, the central hole is a sampling hole, the sampling drill cylinder is also provided with plugging holes arranged around the central hole, and the axes of the plugging holes are arranged in parallel with the axis of the central hole;
the downthehole detachable threaded connection of shutoff has the double-screw bolt, and when adopting hydraulic pressure to push down the subassembly, rotatory the brill establishes the subassembly and makes the sample bores a section of thick bamboo and stretches into in the road surface basal layer, double-screw bolt screw thread shutoff connect in the shutoff of a sample bores a section of thick bamboo is downthehole, before boring a section of thick bamboo with this sample and take out in the road surface basal layer, will the double-screw bolt screw thread back-out the shutoff hole, and utilize a kind hole sealing subassembly is connected the shutoff hole, so that it is right the hole of the sample position of road surface basal layer carries out the.
2. The device for measuring a road base layer for road construction according to claim 1, wherein: the bottom of the sampling drill cylinder is provided with an auxiliary sample outlet sleeve, the auxiliary sample outlet sleeve is of an annular structure, the upper end of the inner hole wall of the auxiliary sample outlet sleeve is provided with a conical hole groove with a large upper end and a small lower end, the inner side of the bottom of the sampling drill cylinder is provided with a conical ring cavity with a small upper end and a large lower end, the conical hole groove of the auxiliary sample outlet sleeve is abutted against and matched with the conical ring cavity, and the conical surface of the conical ring cavity inclines towards the radial center of the sampling drill cylinder; and the upper end of the auxiliary sample outlet sleeve is provided with a small threaded hole matched with the lower end of the stud in a threaded manner, when the stud is screwed out of the plugging hole, the auxiliary sample outlet sleeve is separated from the sampling drill cylinder, and when plugging agent is injected, the plugging agent flows obliquely from the cavity wall of the conical annular cavity to the radial center of the bottom of the sampling drill cylinder, so that the sampling drill cylinder moves upwards, and the sample is ensured to be located in the sampling drill cylinder.
3. The device for measuring a road base layer for road construction according to claim 1, wherein: the center hole of the sampling drill cylinder is a tapered hole with a large upper part and a small lower part, the taper of the center hole is 1-2 degrees, and the top of the stud is provided with an operation hexagonal head.
4. The device for measuring a road base layer for road construction according to claim 1, wherein: the hydraulic pressure pushes down the subassembly and includes two parallel arrangement's hydraulic drive pole, hydraulic stem seat and drive seat, wherein, the hydraulic drive pole is fixed on the hydraulic stem seat, two adopt between the hydraulic stem seat the connecting plate links together, the connecting plate is fixed in the frame, the output of hydraulic drive pole is connected to the drive seat, the rotatory subassembly of establishing of boring is fixed to be set up on the drive seat.
5. The device for measuring a road base layer for road construction according to claim 1, wherein: the subassembly is established to rotatory brill includes driving motor, driving gear, driven gear, rotation driving cylinder, support frame, wherein, the support frame is fixed to be set up on the drive seat, the fixed driving motor that is provided with on the support frame, driving motor's output is provided with the driving gear, be provided with driven gear on the rotation driving cylinder, driven gear with driving gear meshing transmission, the rotation driving cylinder adopt the bearing vertical pass support in on support frame and the drive seat to extend downwards the drive seat sets up, the lower extreme of rotating the driving cylinder is provided with flange, be provided with on the rotation driving cylinder with centre bore and the shutoff hole that sample drilling cylinder structural position is the same, just the rotation driving cylinder adopt flange with the sealed coaxial butt joint of sample drilling cylinder.
6. The device for measuring a road base layer for road construction according to claim 5, wherein: the number of the driving motors is two, the driving motors are arranged on the periphery of the rotary driving cylinder in an asymmetrical mode, and the meshing clearance between the driving gear and the driven gear is larger than the error value of inconsistent control steps between the two driving motors, so that the rotary driving cylinder is driven to rotate by the two driving motors.
7. The device for measuring a road base layer for road construction according to claim 6, wherein: go out appearance hole sealing subassembly includes compounding jar, pump sending pump, plate of distributor, control valve, joint flange and attach fitting, wherein, the compounding jar is connected with the pump sending pump through the pump sending pipe, the discharge end of pump sending pump is connected to the plate of distributor, each discharge end of plate of distributor adopts the pump sending pipe to be connected with the attach fitting, each the attach fitting is fixed on the joint flange, just attach fitting with rotate on the driving barrel the shutoff hole is sealed to be cooperated, the plate of distributor with be provided with on the pump sending pipe between the attach fitting the control valve, the joint flange with rotate the ring flange sealing connection of driving barrel upper end.
8. The device for measuring a road base layer for road construction according to claim 1, wherein: the lower extreme that the hardness detected the head is spherical, just the upper end that the hardness detected the head is provided with positioning groove, positioning groove cover is established the lower extreme that the section of thick bamboo was bored in the sample, just the upper end that the hardness detected the head is provided with radial locking bolt, radial locking bolt will the locking of hardness detection head is in the lower extreme that the section of thick bamboo was bored in the sample.
9. The device for measuring a road base layer for road construction according to claim 7, wherein: the lower end face of the sampling drill cylinder is of a cutting edge structure, and a sealing matching seat matched with the connecting joint is further arranged at the upper end of the rotary driving cylinder.
10. The device for measuring a road base layer for road construction according to any one of claims 1 to 9, wherein: the frame is fixedly arranged on the moving vehicle, the moving vehicle is further provided with a controller, and the controller controls the action of each component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910136513.8A CN109883865B (en) | 2019-02-25 | 2019-02-25 | A road surface basic unit measuring device for highway construction |
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| CN201910136513.8A CN109883865B (en) | 2019-02-25 | 2019-02-25 | A road surface basic unit measuring device for highway construction |
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| CN109883865B true CN109883865B (en) | 2020-06-16 |
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| CN111795844B (en) * | 2020-07-02 | 2021-02-26 | 常州正信建设工程检测有限公司 | Sampler for civil engineering road surface quality detection |
| CN112964862B (en) * | 2021-02-05 | 2022-03-18 | 泗洪县城市建设投资经营集团有限公司 | High-elastic rubber asphalt composite broken stone seal on-site detection device |
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| JP2004045081A (en) * | 2002-07-09 | 2004-02-12 | Taisei Corp | Sample collecting apparatus |
| CN204514652U (en) * | 2015-04-11 | 2015-07-29 | 王翠娟 | A kind of road base layer corning machine |
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