Automatic excavation device for highway subgrade test pit

Abstract

The utility model discloses an automatic excavation device for a highway subgrade test pit, which comprises a horizontal table, a threaded rod is arranged on the horizontal table, the outer side of the threaded rod is in threaded connection with a threaded sleeve, the outer side of the threaded sleeve is fixedly connected with a gear ring, the outer side of the gear ring is in meshed connection with a bevel gear, the bevel gear is connected with a rotating rod, and the bevel gear is arranged in a sliding sleeve. A connecting frame is connected to one side of the sliding sleeve, soil drilling equipment is arranged below the connecting frame and comprises a soil drilling sleeve connected with the output end of a servo motor, a spiral cutter is fixedly connected to the outer side of the soil drilling sleeve, a scraper is arranged on the outer side of the spiral cutter, and a bottom scraping cutter is arranged at the bottom end of the soil drilling sleeve. By arranging the connecting frame and the servo motor, the servo motor drives the soil drilling equipment to work, automatic excavation of the highway subgrade test pit is achieved, the complexity of manual operation is reduced, and by arranging the spiral cutter, the bottom scraping cutter and the scraper, downward soil drilling and excavation of the test pit and excavation of the pit wall and the pit bottom can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadbed engineering technical field, specifically, relate to a kind of automatic excavation device for highway roadbed test pit. BACKGROUND

[0002] As the basis and important component of road, roadbed has important influence on the safety, stability and durability of road. The quality of roadbed is directly related to the overall performance and service life of road. Therefore, scientific and reasonable evaluation of roadbed is an important link to ensure the quality of road engineering.

[0003] At present, the evaluation standard of roadbed is mainly carried out by excavating test pit. Specifically, a test pit is excavated on the roadbed, and then the compaction degree or porosity in the test pit is measured by sand filling or water filling method to determine the quality of roadbed. However, since the roadbed is compacted during construction, its strength is high, which brings great difficulty to the excavation of test pit.

[0004] In actual operation, handheld soil drilling equipment is usually used when excavating test pit. Although these devices can reduce the labor intensity of manual excavation to some extent, the excavation process is still very laborious due to the high compaction strength of roadbed. In addition, the operation efficiency of handheld soil drilling equipment is low, which leads to a very time-consuming process of test pit excavation. In view of the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model provides an automatic excavation device for highway roadbed test pit to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] An automatic excavation device for highway roadbed test pit comprises a water platform, a threaded rod provided on the water platform, a threaded sleeve threadedly connected to the outer side of the threaded rod, a gear ring fixedly connected to the outer side of the threaded sleeve, a bevel gear meshingly connected to the outer side of the gear ring, a rotating rod connected to the bevel gear, the bevel gear being arranged inside a sliding sleeve, the sliding sleeve being connected to the threaded sleeve through a bearing, a connecting frame connected to one side of the sliding sleeve, and a soil drilling equipment provided below the connecting frame.

[0008] Further, a servo motor is fixedly connected to one end of the connecting frame, and the output end of the servo motor is connected to the soil drilling equipment.

[0009] Further, the soil drilling equipment comprises a soil drilling sleeve connected to the output end of the servo motor, a spiral knife fixedly connected to the outer side of the soil drilling sleeve, a scraper provided on the outer side of the spiral knife, and a bottom scraping knife provided at the bottom end of the soil drilling sleeve.

[0010] Further, the scraper is connected with the mounting block, connecting rods are arranged on both sides of the top end of the soil drilling sleeve, mounting grooves are arranged in the connecting rods, the mounting grooves are matched with the mounting block, and the mounting block and the connecting rods are connected through bolts and nuts.

[0011] Further, one end of the rotating rod penetrates through the sliding sleeve and is connected with the height adjusting disc.

[0012] Further, the threaded rod is provided with a support on one side, the support is internally provided with a limiting groove, a limiting block is arranged on the sliding sleeve, and the limiting groove is matched with the limiting block.

[0013] Further, a scale is arranged on one side of the support, a pointer is arranged outside the scale, and the pointer is connected with the sliding sleeve.

[0014] Further, the water platform is provided with fixing frames on both sides, and universal wheels are arranged below the fixing frames.

[0015] Further, the bottom of the soil drilling sleeve and the bottom of the scraper are both provided with prongs.

[0016] Further, the number of the bottom scrapers is four.

[0017] The utility model discloses the beneficial effect is:

[0018] (1), through setting up connecting frame and servo motor, through servo motor drive soil drilling equipment work, has realized the automatic excavation of highway subgrade test pit, has reduced the tediousness and labor intensity of manual operation, through the rotation height adjusting disc can adjust the drilling depth, and can be adjusted according to the actual situation on site human test pit excavation speed, and through the scale can carry out the measurement of depth, and the operator can observe the reading on the scale, real-time master test pit excavation depth, thereby better control the excavation process.

[0019] (2), through setting up spiral knife, bottom scraper and scraper, can realize downward drilling and excavate test pit and the excavation of pit wall, pit bottom, improve test pit excavation efficiency, and through the control of the embedded depth of the scraper in the connecting rod, the arm length of the scraper can be adjusted, thereby controlling the inner diameter of the test pit. This function enables the device to flexibly adjust the size of the test pit according to different excavation requirements, ensuring that the excavation result meets the expected standard. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1It is a kind of main view for highway subgrade test pit automatic excavation device according to the embodiment of the utility model;

[0022] Figure 2 It is a kind of side view for highway subgrade test pit automatic excavation device according to the embodiment of the utility model;

[0023] Figure 3 It is a kind of internal structure diagram of sliding sleeve for highway subgrade test pit automatic excavation device according to the embodiment of the utility model;

[0024] Figure 4 It is a kind of soil drilling equipment structure diagram for highway subgrade test pit automatic excavation device according to the embodiment of the utility model.

[0025] In the figure,

[0026] 1, water platform;2, threaded rod;3, threaded sleeve;4, gear ring;5, bevel gear;6, rotating rod;7, connecting frame;8, soil drilling equipment;9, servo motor;10, soil drilling sleeve;11, spiral knife;12, scraper;13, bottom scraper;14, mounting block;15, connecting rod;16, mounting groove;17, height adjusting disc;18, support;19, limiting groove;20, limiting block;21, scale;22, pointer;23, fixed frame;24, universal wheel;25, sliding sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] According to the embodiment of the utility model, a kind of highway subgrade test pit automatic excavation device is provided.

[0029] Embodiment one

[0030] As Figures 1-4As shown, the device for automatic excavation of highway subgrade test pit according to the embodiment of the utility model, including water platform 1, water platform 1 is equipped with threaded rod 2, threaded rod 2 outside is connected with threaded sleeve 3, threaded sleeve 3 outside is fixedly connected with gear ring 4, gear ring 4 outside is engagedly connected with bevel gear 5, bevel gear 5 is connected with rotating rod 6, bevel gear 5 is located inside sliding sleeve 25, sliding sleeve 25 is connected with threaded sleeve 3 through bearing, rotating rod 6 one end passes through sliding sleeve 25 and is connected with height adjusting disc 17, can adjust the drilling depth by rotating height adjusting disc 17, and can artificially adjust test pit excavation speed according to actual situation on site, sliding sleeve 25 one side is connected with connecting frame 7, connecting frame 7 one end is fixedly connected with servo motor 9, servo motor 9 output end is connected with drilling equipment 8, threaded rod 2 one side is equipped with support 18, support 18 inside is equipped with limiting groove 19, sliding sleeve 25 is equipped with limiting block 20, limiting groove 19 and limiting block 20 are matched, by now limiting block 20 and limiting groove 19, prevent sliding sleeve 25 from deviating during up and down movement, influence the normal work of drilling equipment 8, support 18 one side is equipped with scale 21, can measure depth by scale 21, operating personnel can observe the reading on scale 21, real-time master test pit excavation depth, to better control the excavation process, scale 21 outside is equipped with pointer 22, pointer 22 is connected with sliding sleeve 25, water platform 1 both sides are equipped with fixed frame 23, by setting fixed frame 23 can be fixed on the device on the subgrade, can prevent the vibration caused by servo motor 9 driving drilling equipment 8 drilling from causing equipment instability influence, fixed frame 23 below is equipped with universal wheel 24, for driving the device to move, and when needing to stop, universal wheel 24 can turn direction after making water platform 1 fixed not to move.

[0031] As Figures 1-4 shown, drilling equipment 8 includes drilling sleeve 10 connected with servo motor 9 output end, spiral knife 11 is fixedly connected on the outside of drilling sleeve 10, scraper 12 is provided on the outside of spiral knife 11, scraper bottom knife 13 is provided at the bottom end of drilling sleeve 10, the number of scraper bottom knife 13 is four, the knife face of scraper bottom knife 13 has a certain angle of inclination, the knife bottom is inclined downward to rotate and scrape flat, which can improve the accuracy of bottom surface scraping, scraper 12 is connected with mounting block 14, connecting rod 15 is provided at both sides of the top end of drilling sleeve 10, mounting groove 16 is provided in connecting rod 15, mounting groove 16 is matched with mounting block 14, mounting block 14 and connecting rod 15 are connected through bolts and nuts, a plurality of connecting holes are provided on connecting rod 15, which can be connected with mounting block 14 through bolts passing through different connecting holes, the embedding depth of scraper 12 in connecting rod 15 can be controlled, the arm length of scraper 12 is adjusted, so as to control the inner diameter of test pit, the bottom of drilling sleeve 10 and the bottom of scraper 12 are all prong-shaped, which can improve the efficiency of rotary drilling.

[0032] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is explained in detail.

[0033] In actual application, the device can be moved to the position where the trial pit is needed to be excavated through the rollers below the water platform 1, after the movement is completed, the rotating height adjusting disc 17 can drive the rotating rod 6 and the bevel gear 5 to rotate, the bevel gear 5 drives the gear ring 4 to rotate, the gear ring 4 drives the threaded sleeve 3 to rotate, the threaded sleeve 3 drives the threaded sleeve 3 to move on the threaded rod 2, so that the earth drilling equipment 8 can be moved downwards, the earth drilling equipment 8 is in contact with the ground, the position of the present pointer 22 on the scale 21 is recorded, so as to be compared and monitored in the subsequent excavation depth, the servo motor 9 is started again, the earth drilling equipment 8 is driven to rotate, then the height adjusting disc 17 is rotated again, the earth drilling equipment 8 is moved downwards, the trial pit is excavated, when the height adjusting disc 17 is rotated again, the rotation speed can be controlled to control the excavation speed of the trial pit, in the earth drilling process, the spiral knife 11 drills downwards, the soil is cut and discharged through the rotary motion, so that the vertical excavation of the trial pit is realized. The bottom scraper 13 is responsible for cleaning the residual soil at the bottom of the trial pit, so that the bottom of the pit is flat and smooth. The scraper 12 is used for excavating the pit wall of the trial pit, through rotation and up and down movement, the scraper 12 can effectively remove the excess soil on the pit wall, so that the pit wall is neat and smooth, and the embedded depth of the scraper 12 in the connecting rod 15 can be controlled, so that the arm length of the scraper 12 can be adjusted, so that the inner diameter of the trial pit can be controlled, in the whole excavation process, the operator needs to observe the position of the pointer 22 on the scale 21, so as to monitor the excavation depth in real time. In this way, it can be ensured that the excavation depth meets the predetermined standard, and the overexcavation or underexcavation can be avoided.

[0034] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for automatic excavation of highway subgrade test pits, characterized in that, Including water platform (1), the water platform (1) is equipped with threaded rod (2), the threaded rod (2) outside threaded connection has threaded sleeve (3), the threaded sleeve (3) outside fixed connection has gear ring (4), the gear ring (4) outside engagement connection has bevel gear (5), the bevel gear (5) is connected with the rotating rod (6), the bevel gear (5) is located inside the sliding sleeve (25), the sliding sleeve (25) is connected with threaded sleeve (3) through bearing, the sliding sleeve (25) one side is connected with connecting frame (7), the connecting frame (7) below is equipped with earth boring equipment (8).

2. The automatic excavation device for highway subgrade test pit according to claim 1, characterized in that, One end of the connecting frame (7) is fixedly connected with a servo motor (9), and the output end of the servo motor (9) is connected with the earth boring equipment (8).

3. The automatic excavation device for highway subgrade test pit according to claim 1, characterized in that, The earth boring equipment (8) includes an earth boring sleeve (10) connected with the output end of the servo motor (9), the earth boring sleeve (10) is fixedly connected with a spiral knife (11) outside, the spiral knife (11) is provided with a scraper (12) outside, and the earth boring sleeve (10) bottom end is provided with a bottom scraping knife (13).

4. The automatic excavation device for highway roadbed test pit according to claim 3, characterized in that, The scraper (12) is connected with the mounting block (14), the earth boring sleeve (10) top end is provided with a connecting rod (15) on both sides, the connecting rod (15) is provided with a mounting groove (16) inside, the mounting groove (16) is matched with the mounting block (14), and the mounting block (14) and the connecting rod (15) are connected through bolts and nuts.

5. The automatic excavation device for highway subgrade test pit according to claim 1, characterized in that, One end of the rotating rod (6) passes through the sliding sleeve (25) and is connected with the height adjusting disc (17).

6. The automatic excavation device for highway subgrade test pit according to claim 1, characterized in that, One side of the threaded rod (2) is provided with a support (18), the support (18) is provided with a limiting groove (19) inside, the sliding sleeve (25) is provided with a limiting block (20), and the limiting groove (19) is matched with the limiting block (20).

7. The automatic excavation device for highway subgrade test pit according to claim 6, characterized in that, One side of the support (18) is provided with a scale ruler (21), the scale ruler (21) is provided with a pointer (22) outside, and the pointer (22) is connected with the sliding sleeve (25).

8. The automatic excavation device for highway subgrade test pit according to claim 1, characterized in that, Both sides of the water platform (1) are provided with a fixed frame (23), and the fixed frame (23) is provided with a universal wheel (24) below.

9. The automatic excavation device for highway subgrade test pit according to claim 3, characterized in that, The bottom of the earth boring sleeve (10) and the bottom of the scraper (12) are both pronged.

10. The automatic excavation device for highway subgrade test pit according to claim 3, characterized in that, The number of the bottom scraping knives (13) is four.

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