CN214939998U

CN214939998U - Road soil roadbed compactness detection device

Info

Publication number: CN214939998U
Application number: CN202121469609.5U
Authority: CN
Inventors: 王春晖; 隋忠庆; 宋学鹏; 冯赟; 帅凯贤; 吴亚东
Original assignee: Shanghai Heliu Engineering Supervision Co ltd
Current assignee: Shanghai Heliu Engineering Supervision Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-11-30
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a road soil subgrade compactness detection device, the on-line screen storage device comprises a base, remove wheel and adjustable stabilizer blade, the inside drill barrel that is equipped with of base, the drill barrel lower extreme extends to the base below through leading to the groove, the drill barrel upper end is connected with the mounting panel through the turning block, both ends run through connection respectively have lead screw and gag lever post about the mounting panel, and lead screw and gag lever post are all installed inside the base, lead screw outer wall threaded connection has the transmission worm wheel, the transmission worm wheel passes through the worm wheel mount pad and installs on the mounting panel, the meshing has the transmission worm on the transmission worm wheel, the transmission worm right-hand member is connected with driving motor through the transmission of transmission shaft, be equipped with first transmission bevel gear on the transmission shaft, be connected with second transmission bevel gear on the first transmission bevel gear, second transmission bevel gear is connected with the drill barrel upper end. The utility model discloses make to bore a section of thick bamboo and rotate and go on in step with the decline, the operation of being convenient for, and avoid the in-process of fetching earth to cause the change of ground density to improve the accuracy of testing result.

Description

Road soil roadbed compactness detection device

Technical Field

The utility model relates to a road check out test set field especially relates to a road soil roadbed compactness detection device.

Background

When road construction is carried out, roadbed compactness is usually required to be detected to ensure the quality of road construction, roadbed compactness refers to the ratio of the dry density of soil or other road building materials after being compacted to the standard maximum dry density and is expressed by percentage, the roadbed compactness is usually detected by adopting a cutting ring method, a sand filling method, a nuclear densitometer method and the like, the cutting ring method is a destructive detection method, the equipment is simple and convenient to operate, the sand filling method is a method for replacing the volume of a test hole by using uniform-particle sand, the method is the most common method at present, the nuclear densitometer method is a non-destructive measurement method, the measurement is faster, the display is more visual, but the method is usually used after being compared and calibrated with the sand filling method, when the traditional cutting ring method is used for process sampling, a drill cylinder is pushed to be in contact with the ground by a pressure cylinder, and then a motor drives the drill cylinder to rotate by a transmission structure, the drill cylinder is driven to drill into the ground, and the pressure cylinder pushes the drill cylinder downwards to realize sampling.

However, in the sampling process of the existing cutting ring method, the pressure cylinder presses the cutting ring downwards, the rotation of the drill cylinder and the drilling process are not carried out synchronously, and the rotation and the drilling process need to be controlled independently, so that the operation and the control are not easy, the measurement result is not accurate, and the sampling cylinder is easy to fall off, so that certain defects exist.

Disclosure of Invention

An object of the utility model is to provide a road way subgrade compactness detection device makes the rotation and the process of drilling down of boring a section of thick bamboo keep in step, is convenient for control sampling equipment, avoids causing great influence to near soil density of cutting ring, ensures the accuracy of testing result, and is convenient for adjust drilling sampling speed, improves regulation efficiency.

The utility model discloses a realize like this:

a road subgrade compactness detection device comprises a base;

the bottom surface of the base is symmetrically provided with a plurality of movable wheels and adjustable support legs, a drill cylinder is arranged in the base, the lower end of the drill cylinder extends to the lower part of the base through a through groove, the upper end of the drill cylinder is rotatably connected with a mounting plate through a rotating block, the left end and the right end of the mounting plate are respectively and vertically connected with a screw rod and a limiting rod in a penetrating way, the screw rod and the limiting rod are fixedly arranged in the base, the outer wall of the screw rod is in threaded connection with a transmission worm wheel which is rotatably arranged on the upper surface of the mounting plate through a worm wheel mounting seat, the transmission worm wheel is in meshed connection with a transmission worm, the right end of the transmission worm is in transmission connection with a driving motor through a transmission shaft, the driving motor is fixedly arranged on the upper surface of the mounting plate, a first transmission bevel gear is fixedly arranged on the transmission shaft, and a second transmission bevel gear is in meshed connection with the first transmission bevel gear, and the second transmission bevel gear is fixedly connected with the upper end of the rotating block.

The driving motor and the transmission shaft top all are equipped with the safety cover, safety cover bottom fixed mounting be in the mounting panel upper surface.

The drill bit is characterized in that drill teeth are arranged at the bottom of the drill bit, the inner wall of the drill bit is connected with a sampling tube through a sliding block in a sliding manner, the sampling tube is two semi-cylindrical barrels, the lower end of the sampling tube is open, a positioning block is arranged at the upper end of the sampling tube, a lifting ring is arranged at the upper end of the positioning block, a positioning rod is arranged in the positioning block in a sliding manner, the positioning rod is far away from one end of the positioning block and is connected with the upper end of the drill bit in an inserting manner through a positioning hole, a limiting block is arranged on the outer wall of the positioning rod, a compression spring is arranged on the outer wall of the positioning rod in a sleeving manner, and the limiting block and the positioning block are located between the compression spring.

The upper end of the drill cylinder is detachably connected with the bottom of the rotating block through the matching of the mounting screw hole and the mounting bolt.

The bottom of the drill cylinder is hinged with a baffle.

The dust collection device is characterized in that a handle is arranged on the upper surface of the base, two dust collection fans are symmetrically arranged on the bottom surface of the base, the dust collection fans are connected with a dust collection box through air pipes, and the dust collection box is installed on the outer wall of the rear side of the base.

The utility model has the advantages of reasonable design, set up rotation and the lift process that driving motor synchronous drive bored a section of thick bamboo, make to bore a section of thick bamboo and rotate and go on in step with the process of boring down, be convenient for operate sampling equipment, to the influence of ground soil density when reducing the sample, and can suitably adjust the driving motor rotational speed to improve the efficiency of ground sample.

Drawings

FIG. 1 is a schematic view of the external structure of the road subgrade compactness testing device of the utility model;

FIG. 2 is a schematic view of the internal structure of the base of the road subgrade compactness detecting device of the present invention;

FIG. 3 is a schematic view of the internal structure of the drill cylinder of the road subgrade compactness detecting device of the utility model;

in the figure, 1, a base; 2. a moving wheel; 3. an adjustable support leg; 4. drilling a barrel; 5. a through groove; 6. mounting a plate; 7. a limiting rod; 8. a screw rod; 9. a drive worm gear; 10. a worm gear mounting seat; 11. a drive worm; 12. a drive shaft; 13. a drive motor; 14. a first drive bevel gear; 15. a second drive bevel gear; 16. a protective cover; 17. drilling teeth; 18. a sampling tube; 19. a slider; 20. positioning blocks; 21. positioning a rod; 22. positioning holes; 23. a limiting block; 24. a compression spring; 25. lifting a ring; 26. mounting a screw hole; 27. installing a bolt; 28. a baffle plate; 29. a dust collection fan; 30. a dust collection box; 31. a handle.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 3, a device for detecting the compaction degree of a road subgrade comprises a base 1;

the bottom surface of the base 1 is symmetrically provided with a plurality of movable wheels 2 and adjustable support legs 3, a drill barrel 4 is arranged in the base 1, the lower end of the drill barrel 4 extends to the lower part of the base 1 through a through groove 5, the upper end of the drill barrel 4 is rotatably connected with a mounting plate 6 through a rotating block, the left end and the right end of the mounting plate 6 are respectively vertically connected with a screw rod 8 and a limiting rod 7 in a penetrating way, the screw rod 8 and the limiting rod 7 are fixedly arranged in the base 1, the outer wall of the screw rod 8 is in threaded connection with a transmission worm wheel 9, the transmission worm wheel 9 is rotatably arranged on the upper surface of the mounting plate 6 through a worm wheel mounting seat 10, the transmission worm wheel 9 is engaged and connected with a transmission worm 11, the right end of the transmission worm 11 is in transmission connection with a driving motor 13 through a transmission shaft 12, the driving motor 13 is fixedly arranged on the upper surface of the mounting plate 6, and a first transmission bevel gear 14 is fixedly arranged on the transmission shaft 12, and a second transmission bevel gear 15 is meshed and connected to the first transmission bevel gear 14, and the second transmission bevel gear 15 is fixedly connected with the upper end of the rotating block. In this embodiment, the diameter of the first transmission bevel gear 14 is smaller than the diameter of the second transmission bevel gear 15, so that when the first transmission bevel gear 14 transmits the rotation of the second transmission bevel gear 15, the second transmission bevel gear 15 realizes accelerated rotation to drill soil, the driving motor 13 is a stepping motor capable of adjusting the rotation speed, the driving shaft 12 is driven to rotate by the driving motor 13, the driving shaft 12 drives the transmission worm 11 to rotate, the transmission worm 11 drives the transmission worm gear 9 to rotate, the transmission worm gear 9 and the worm gear mounting seat 10 drive the mounting plate 6 and the drill barrel 4 to move up and down by using the lead screw principle, and the driving shaft 12 drives the second transmission bevel gear 15 to rotate by the first transmission bevel gear 14, so that the rotation block drives the drill barrel 4 to rotate, the drill barrel 4 rotates while the drill soil descends, the drill barrel 4 is convenient to take soil, and the worm gear transmission structure has self-locking property, the locking of the position of the drill barrel 4 is realized; in this embodiment, the rotation speed of the drill cylinder 4 and the drilling speed of the drill cylinder 4 can be synchronously adjusted by adjusting the rotation speed of the driving motor 13 according to the density and sampling difficulty of actual soil, and when a foundation which is easy to sample and difficult to change in density is detected, the rotation speed of the driving motor 13 is accelerated, and the sampling speed is increased.

The driving motor 13 and the transmission shaft 12 are both provided with a protective cover 16, and the bottom of the protective cover 16 is fixedly arranged on the upper surface of the mounting plate 6. In this embodiment, a protective cover 16 is provided to protect the driving motor 13 and the transmission structure from being damaged by hitting the inner top surface of the base 1.

Bore 4 bottoms of section of thick bamboo and be equipped with and bore tooth 17, bore 4 inner walls of section of thick bamboo and have a sampling section of thick bamboo 18 through 19 sliding connection of slider, sampling section of thick bamboo 18 is two semi-cylindrical barrels, just 18 lower extreme openings of sampling section of thick bamboo, 18 upper ends of sampling section of thick bamboo all are equipped with locating piece 20, 20 upper ends of locating piece all are equipped with handle 25, equal slidable mounting has locating lever 21 in the locating piece 20, locating lever 21 is kept away from 20 one end of locating piece all through locating hole 22 with bore 4 upper ends pegs graft, locating lever 21 outer wall all is equipped with

stopper

23, 21 outer wall of locating lever all overlaps and is equipped with compression spring 24, compression spring 24 all is located stopper 23 with between the locating piece 20. In this embodiment, bore a plurality of toper and bore tooth 17 in 4 bottom equidistance of section of thick bamboo, the section of thick bamboo 4 of being convenient for bores the soil sample downwards, and sampling cylinder 18 realizes the location through locating lever 21 and locating hole 22's cooperation and is connected, avoids inside sampling cylinder 18 roll-off section of thick bamboo 4, and sampling cylinder 18 is convenient for the dismouting, the testing personnel operation of being convenient for.

The upper end of the drill cylinder 4 is detachably connected with the bottom of the rotating block through the matching of a mounting screw hole 26 and a mounting bolt 27. In this embodiment, the drill cylinder 4 is detachably mounted at the bottom of the rotating block, so that the drill cylinder 4 is convenient to detach, and the sampling cylinder 18 inside the drill cylinder is taken out from the top of the drill cylinder 4, thereby realizing the sampling of the foundation soil.

The bottom of the drill cylinder 4 is hinged with a baffle 28. In this embodiment, when the drilling barrel 4 drills soil, the baffle 28 is retracted into the drilling barrel 4 under the pressure of the ground soil, and after sampling is completed, if the soil in the drilling barrel 4 slides down, the soil drives the baffle 28 to turn over downwards under the action of gravity, so as to keep the horizontal state and prevent the soil in the drilling barrel 4 from sliding down. Preferably, the baffles 28 are fan-shaped and four in number, and the four fan-shaped baffles abut against each other to form a circle when turned over to be horizontal so as to block the lower end opening of the sampling tube 18. At the bottom of the drum 4, a flap 28 is mounted by means of a hinge, which is preferably a 90-degree hinge, and which is fixed when the flap is turned to be horizontal, and does not continue to turn downwards.

The upper surface of the base 1 is provided with a handle 31, the bottom surface of the base 1 is symmetrically provided with two dust collection fans 29, the dust collection fans 29 are connected with dust collection boxes 30 through air pipes, and the dust collection boxes 30 are arranged on the outer wall of the rear side of the base 1. In the embodiment, the base 1 is pushed by the handle 31 to move, and in the soil drilling and sampling process, the dust collection fan 29 can be opened to absorb and convey dust generated by soil drilling into the dust collection box 30, so that the influence of dust flying on the health of detection personnel is avoided.

When the device works, the whole device is moved to a position to be sampled through the moving wheel 2, the adjustable support legs 3 are rotated to support the base 1, the base 1 is positioned, the switch of the driving motor 13 is turned on, the driving motor 13 drives the transmission shaft 12 to rotate, the transmission shaft 12 drives the transmission worm 11 to rotate, the transmission worm 11 drives the transmission worm wheel 9 to rotate, the transmission worm wheel 9 and the worm wheel mounting seat 10 drive the mounting plate 6 to move up and down with the drill barrel 4 by utilizing the screw rod principle, the transmission shaft 12 drives the second transmission bevel gear 15 to rotate through the first transmission bevel gear 14, the rotating block drives the drill barrel 4 to rotate, the drill barrel 4 rotates automatically while descending to drill soil, the drill barrel 4 is convenient to take soil, after sampling is completed, the driving motor 13 is controlled to rotate reversely, the drill barrel 4 is lifted, the mounting bolt 27 is taken down, the drill barrel 4 is separated from the rotating block, the positioning rods 21 are pressed inwards to be separated from the positioning holes 22, and the lifting ring 25 is lifted upwards by hand, so that the sampling cylinder 18 can be taken down to realize the sampling process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A road subgrade compactness detection device comprises a base (1);

the method is characterized in that: the adjustable drilling machine is characterized in that a plurality of movable wheels (2) and adjustable support legs (3) are symmetrically arranged on the bottom surface of the base (1), a drilling barrel (4) is arranged inside the base (1), the lower end of the drilling barrel (4) extends to the lower side of the base (1) through a through groove (5), the upper end of the drilling barrel (4) is connected with a mounting plate (6) through a rotating block in a rotating mode, the left end and the right end of the mounting plate (6) are respectively vertically connected with a lead screw (8) and a limiting rod (7) in a penetrating mode, the lead screw (8) and the limiting rod (7) are fixedly mounted inside the base (1), the outer wall of the lead screw (8) is in threaded connection with a transmission worm wheel (9), the transmission worm wheel (9) is rotatably mounted on the upper surface of the mounting plate (6) through a worm wheel mounting seat (10), a transmission worm (11) is connected on the transmission worm (9) in a meshing mode, and a driving motor (13) is connected to the right end of the transmission worm (11) through a transmission shaft (12), and the driving motor (13) is fixedly installed on the upper surface of the mounting plate (6), a first transmission bevel gear (14) is fixedly arranged on the transmission shaft (12), a second transmission bevel gear (15) is connected to the first transmission bevel gear (14) in a meshing manner, and the second transmission bevel gear (15) is fixedly connected with the upper end of the rotating block.

2. The road subgrade compactness detection device of claim 1, characterized by: driving motor (13) with transmission shaft (12) top all is equipped with safety cover (16), safety cover (16) bottom fixed mounting be in mounting panel (6) upper surface.

3. The road subgrade compactness detection device of claim 1, characterized by: bore section of thick bamboo (4) bottom and be equipped with and bore tooth (17), bore section of thick bamboo (4) inner wall and have sampling cylinder (18) through slider (19) sliding connection, sampling cylinder (18) are two semi-cylindrical barrels, just sampling cylinder (18) lower extreme opening, sampling cylinder (18) upper end all is equipped with locating piece (20), locating piece (20) upper end all is equipped with bail (25), equal slidable mounting has locating lever (21) in locating piece (20), locating lever (21) are kept away from locating piece (20) one end all through locating hole (22) with bore section of thick bamboo (4) upper end and peg graft, locating lever (21) outer wall all is equipped with stopper (23), locating lever (21) outer wall all overlaps and is equipped with compression spring (24), compression spring (24) all are located stopper (23) with between locating piece (20).

4. The road subgrade compactness detection device of claim 1, characterized by: the upper end of the drill cylinder (4) is detachably connected with the bottom of the rotating block through the matching of an installation screw hole (26) and an installation bolt (27).

5. The road subgrade compactness detection device of claim 1, characterized by: the bottom of the drill cylinder (4) is hinged with a baffle (28).

6. The road subgrade compactness detection device of claim 1, characterized by: the dust collection device is characterized in that a handle (31) is arranged on the upper surface of the base (1), two dust collection fans (29) are symmetrically arranged on the bottom surface of the base (1), the dust collection fans (29) are connected with a dust collection box (30) through air pipes, and the dust collection box (30) is installed on the outer wall of the rear side of the base (1).