CN111537264B - Tool and method for sampling soil of transformer substation - Google Patents
Tool and method for sampling soil of transformer substation Download PDFInfo
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- CN111537264B CN111537264B CN202010318880.2A CN202010318880A CN111537264B CN 111537264 B CN111537264 B CN 111537264B CN 202010318880 A CN202010318880 A CN 202010318880A CN 111537264 B CN111537264 B CN 111537264B
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- 239000002689 soil Substances 0.000 title claims abstract description 91
- 238000005070 sampling Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 238000005527 soil sampling Methods 0.000 claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 52
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The application belongs to the technical field of soil sampling, and particularly relates to a tool and a method for sampling soil of a transformer substation. A tool for sampling soil of a transformer substation comprises a bracket, a main shaft, a driving mechanism, a rotating shaft, a support plate, a rotating mechanism, a drilling cylinder, a transverse cutter and an adjusting mechanism. The main shaft is connected with the bracket in a sliding way. The driving mechanism is connected with the main shaft. The rotating shaft is rotationally connected with the main shaft. The support plate is connected with the support in a sliding way and is rotationally connected with the rotating shaft. The rotating mechanism is arranged on the support plate and is connected with the rotating shaft. The first end of the drilling cylinder is connected with the rotating shaft, and the second end is provided with a longitudinal cutter. The transverse cutter is arc-shaped and is rotationally connected with the drill cylinder and used for cutting soil in an extending state. The adjusting mechanism is arranged on the drilling cylinder and connected with the transverse cutter and used for driving the transverse cutter to rotate. When the tool is used for sampling soil, time and labor are saved, and the interference to the soil sample is small, so that the soil sample is favorable to keep an original state.
Description
Technical Field
The application belongs to the technical field of soil sampling, and particularly relates to a tool and a method for sampling soil of a transformer substation.
Background
When the transformer substation is selected, the performance of the soil is an important evaluation index, because the characteristics of the porosity, the water content, the organic matter content and the like of the soil directly influence the resistivity of the soil and the corrosiveness of the soil to the grounding grid. The resistivity of the soil directly influences the conductivity of the soil, and the larger the resistivity of the soil is, the poorer the conductivity is, and the poorer the grounding effect is. The contact resistance increases after the grounding grid is rusted, so that the power frequency grounding short circuit and the high potential when lightning strike electricity flows into the ground are caused, and the equipment and personal safety are seriously threatened. Therefore, the site of the transformer substation needs to be sampled.
In the prior art, an iron shovel is often used for soil sampling, after a pit is dug around a soil column, the soil column is cut off and taken out, but the method is time-consuming and labor-consuming, and in the process of digging, frequent and irregular vibration can damage the stress balance of the soil column, so that the natural structure of the soil is damaged, and the accuracy of experimental data of the soil sample is affected.
Disclosure of Invention
In view of the above, the embodiment of the application provides a tool and a method for sampling soil of a transformer substation, which aim to solve the problems that time and labor are wasted during soil sampling in the prior art, and experimental data are inaccurate due to the fact that a natural structure of a soil sample is damaged.
To achieve the above object, according to a first aspect of the embodiments of the present application, there is provided a tool for sampling soil in a substation, including a bracket; the main shaft is in sliding connection with the bracket; the driving mechanism is connected with the main shaft and is used for driving the main shaft to move along the axial direction of the main shaft; the rotating shaft is coaxially arranged with the main shaft and is rotationally connected with the main shaft; the support plate is connected with the support in a sliding manner and is rotationally connected with the rotating shaft; the rotating mechanism is arranged on the support plate, connected with the rotating shaft and used for driving the rotating shaft to rotate; the drilling barrel is coaxially arranged with the rotating shaft, the first end is connected with the rotating shaft, and the second end is provided with a longitudinal cutter for cutting soil along the axial direction of the drilling barrel in a rotating state; the drill cylinder is provided with a crack; the transverse cutter is arc-shaped and is positioned in the crack; the transverse cutter is rotationally connected with the wall of the drilling barrel and is used for cutting soil along the radial direction of the drilling barrel in an extending state; the adjusting mechanism is arranged on the drilling barrel, connected with the transverse cutter and used for driving the transverse cutter to rotate relative to the drilling barrel.
As another embodiment of the present application, the driving mechanism includes:
the rack is connected with the bracket in a sliding way and is connected with the main shaft and used for driving the main shaft to move;
the gear is meshed with the rack and is used for driving the rack to move; and
and the driving motor component is connected with the gear and used for driving the gear to rotate.
As another embodiment of the application, a supporting rod is arranged at one end of the rack, which is close to the main shaft; the support rod is connected with the support in a sliding manner.
As another embodiment of the present application, the rotation mechanism includes:
the worm wheel is connected with the rotating shaft and is used for driving the rotating shaft to rotate;
the worm is meshed with the worm wheel and used for driving the worm wheel to rotate; and
and the rotating motor component is arranged on the support plate and connected with the worm and used for driving the worm to rotate.
As another embodiment of the application, a through hole is arranged on the wall of the drill cylinder; the axial direction of the through hole is parallel to the axial direction of the drill cylinder;
the adjustment mechanism includes:
the transmission rod is arranged in the through hole in a penetrating way, and the first end of the transmission rod is connected with the first end of the transverse cutter and is used for driving the transverse cutter to rotate around the axis of the transmission rod; and
and the transmission member is connected with the second end of the transmission rod and used for driving the transmission rod to rotate.
As another embodiment of the present application, the transmission member includes:
the first rotating wheel is connected with the transmission rod and is used for driving the transmission rod to rotate;
the second rotating wheel is connected with the first rotating wheel and is used for driving the first rotating wheel to rotate; and
and the adjusting motor component is connected with the second rotating wheel and used for driving the second rotating wheel to rotate.
As another embodiment of the present application, the first rotating wheel and the second rotating wheel are bevel gears, and the first rotating wheel and the second rotating wheel are engaged.
As another embodiment of the present application, the bracket is provided with a chute; the length direction of the sliding groove is consistent with the axial direction of the main shaft;
the support plate is provided with a sliding block which is in sliding fit with the sliding groove.
As another embodiment of the application, the drill cylinder is provided with a balancing weight.
As another embodiment of the present application, the slitting knife is detachably connected with the drilling drum.
In a second aspect of the embodiment of the present application, there is provided a substation soil sampling method, including:
the tool for sampling the soil of the transformer substation is used, and the rotating mechanism is started;
starting a driving mechanism to enable the main shaft to move until the slitter contacts soil;
the rotary mechanism and the driving mechanism are kept in an open state until the slitter reaches a set cutting depth, and the driving mechanism is closed;
the rotating mechanism keeps an open state, and opens the adjusting mechanism until the transverse cutter rotates to a set angle, and closes the rotating mechanism and the adjusting mechanism;
and starting the driving mechanism to enable the main shaft to reversely move until the slitter returns to the ground.
By adopting the technical scheme, the application has the following technical progress:
the main shaft is connected with the bracket in a sliding way. The driving mechanism is connected with the main shaft and is used for driving the main shaft to move along the axial direction of the main shaft. The rotating shaft is coaxially arranged with the main shaft and is rotationally connected with the main shaft. The support plate is connected with the support in a sliding way and is rotationally connected with the rotating shaft. The rotating mechanism is arranged on the support plate and connected with the rotating shaft for driving the rotating shaft to rotate. The drill cylinder is coaxially arranged with the rotating shaft, the first end is connected with the rotating shaft, and the second end is provided with a longitudinal cutter for cutting soil along the axial direction of the drill cylinder in a rotating state. The drill cylinder is provided with a crack. The transverse cutter is arc-shaped and is positioned in the crack. The transverse cutter is rotationally connected with the wall of the drilling barrel and is used for cutting soil along the radial direction of the drilling barrel in an extending state. The adjusting mechanism is arranged on the drill cylinder and connected with the transverse cutter and used for driving the transverse cutter to rotate relative to the drill cylinder.
When the rotary drill is used, the driving mechanism drives the main shaft to move, and the main shaft drives the longitudinal cutter to move through the rotating shaft and the drill cylinder; the rotating mechanism drives the rotating shaft to rotate, and the rotating shaft drives the slitting knife to rotate through the drilling cylinder. Therefore, the slitter cuts the soil while drilling deep into the soil. When the longitudinal cutter drills into the set depth, the adjusting mechanism drives the transverse cutter to rotate relative to the drill cylinder, so that the transverse cutter is in an extending state, and at the moment, the drill cylinder drives the transverse cutter to rotate, and the transverse cutter radially cuts soil, namely: cutting off the earth pillar in the drilling cylinder. Therefore, when the drill drum returns to the ground, the complete soil column sample can be brought back to the ground.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: when the tool is used for sampling soil, time and labor are saved, and the interference to the soil sample is small, so that the soil sample is favorable to maintain the original state, and the accuracy of experimental data is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a substation soil sampling tool according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the connection of a spindle, a support plate, a rotary mechanism and a drill cylinder according to an embodiment of the present application;
FIG. 3 is a bottom view of a drill barrel and cross-cutter according to an embodiment of the present application;
FIG. 4 is a bottom view of the drill barrel and cross-cutter according to the present application in another state;
FIG. 5 is a schematic view of the structure of the drill barrel, the cross cutter and the longitudinal cutter according to the embodiment of the present application;
FIG. 6 is a schematic diagram illustrating an assembly of a rack and a support platform according to an embodiment of the present application;
FIG. 7 is a schematic diagram illustrating an assembly of a strut, a strut and a leg according to an embodiment of the present application;
fig. 8 is a schematic connection diagram of a drill barrel and an adjusting mechanism according to an embodiment of the present application.
Reference numerals illustrate:
10. a bracket; 11. a support platform; 12. a support leg; 121. a chute; 20. a main shaft; 21. a rack; 211. a support rod; 2111. a guide block; 22. a gear; 23. a drive motor assembly; 30. a rotating shaft; 31. a support plate; 311. a slide block; 32. a worm wheel; 33. a worm; 34. a rotating electrical machine assembly; 40. drilling a cylinder; 41. a longitudinal cutter; 42. balancing weight; 50. a transverse cutter; 51. a transmission rod; 52. a first wheel; 53. a second wheel; 54. and adjusting the motor assembly.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to illustrate the technical scheme of the application, the following description is made by specific examples.
The embodiment of the application provides a tool for sampling soil of a transformer substation, which is shown in fig. 1, 2, 3, 4 and 5, and comprises a bracket 10, a main shaft 20, a driving mechanism, a rotating shaft 30, a support plate 31, a rotating mechanism, a drilling cylinder 40, a transverse cutter 50 and an adjusting mechanism. The spindle 20 is slidably coupled to the bracket 10. The driving mechanism is connected to the main shaft 20 and is used for driving the main shaft 20 to move along the axial direction of the main shaft 20. The rotating shaft 30 is coaxially arranged with the main shaft 20 and is rotatably connected with the main shaft 20. The support plate 31 is slidably connected to the bracket 10 and rotatably connected to the rotation shaft 30. The rotating mechanism is arranged on the support plate 31 and connected with the rotating shaft 30 for driving the rotating shaft 30 to rotate.
The drill drum 40 is coaxially disposed with the rotation shaft 30, and has a first end connected to the rotation shaft 30 and a second end provided with a longitudinal cutter 41 for cutting soil in the axial direction of the drill drum 40 in a rotating state. The drill barrel 40 is provided with a nip. The cross-cut knife 50 is arcuate and is positioned within the nip. The cross cutter 50 is rotatably coupled to the wall of the drill drum 40 and serves to cut soil in the radial direction of the drill drum 40 in an extended state. An adjustment mechanism is provided on the drill drum 40 and is coupled to the cross cutter 50 for driving the cross cutter 50 in rotation relative to the drill drum 40.
When in use, the driving mechanism drives the main shaft 20 to move, and the main shaft 20 drives the longitudinal cutter 41 to move through the rotating shaft 30 and the drill drum 40; the rotating mechanism drives the rotating shaft 30 to rotate, and the rotating shaft 30 drives the longitudinal cutter 41 to rotate through the drill drum 40. Therefore, the slitter 41 drills deep into the soil while cutting the soil. When the slitter 41 drills into a set depth, the adjusting mechanism drives the cross cutter 50 to rotate relative to the drill drum 40, so that the cross cutter 50 is in an extended state, and at this time, when the drill drum 40 drives the cross cutter 50 to rotate, the cross cutter 50 cuts soil in a radial direction, namely: cutting the earth column in the drill drum 40. Thus, when the drill drum 40 is returned to the surface, the complete soil column sample is brought back to the surface.
In practical application, the buried depth of the grounding body of the transformer substation is more than 0.6 meter. Because the surface layer of the soil is easily dried, the difference of the dry humidity between the bottom layer and the surface layer of the soil is large, namely: the ground resistance of the surface soil and the ground resistance of the bottom soil are large. If the grounding body is not buried deep enough, the voltage equalizing of the whole grounding system can be affected, and when the grounding short circuit occurs, the step voltage between the surface layer and the bottom layer of the grounding system is large, so that the personal safety of patrol personnel can be threatened. In the latest designs, the ground body is generally buried below the frozen soil layer.
Therefore, in the site selection of the transformer substation, in order to accurately test the performance index of the soil, the depth of soil sampling is more than 0.8 meter, the depth of frozen soil layer in the northern area is larger, and the sampling depth is even more than 2 meters.
In the prior art, earth drills are also used for soil sampling. However, earth boring is generally suitable for small amounts of soil sampling of earth fills within 30 cm. Because the soil quality of the filling layer is softer, the manual operation is easier. This approach is generally used for soil sampling studies in the agricultural field.
However, soil sampling when transformer substation selects the site, because the sampling depth is big, the texture such as clay, the sandstone of bottom is hard, if adopt the earth auger, can cause great vibration to the earth pillar when stepping on and bore, destroys the stress balance of earth pillar, causes the natural structure of soil to be destroyed, influences the accuracy of the experimental data of soil sample. In addition, in practical applications, when sampling is performed by using an earth auger, it is difficult to accurately control the penetration depth by stepping. In addition, when earth boring is lifted, the earth pillar is connected with soil, is difficult to take out the earth pillar entirely, and the process of taking out the earth pillar moreover often can cause the cracked of earth pillar, leads to the sample failure.
Thus, in this embodiment, the slitter 41 cuts the soil in the vertical direction and drills into the soil bed in a manner that combines the slitter 41 with the cross-cutter 50, thereby leaving a soil column sample in the drill drum 40. When the set depth is reached, the cross cutter 50 cuts the soil from the soil in the horizontal direction, and when the drill drum 40 is returned to the ground, the cross cutter 50 can support the soil, thereby bringing the soil completely back to the ground.
In the cutting process of the slitting knife 41 and the transverse knife 50, the influence on the soil column at the central part is small, so that the soil column sample can be kept in an original state, therefore, the tool for sampling of the embodiment is used for saving time and labor, and meanwhile, the natural structure of the soil sample can be protected, and the accuracy of experimental data of the sample is guaranteed.
Specifically, the driving mechanism can adopt a transmission mode of a screw nut, a transmission mode of a gear rack and a transmission mode of a hydraulic cylinder. Specifically, the rotating mechanism can adopt a bevel gear transmission mode or a worm and gear transmission mode. Specifically, the adjusting mechanism can adopt a worm and gear transmission mode or a bevel gear transmission mode. Specifically, the remaining rotating shaft 30 of the main shaft 20 is connected through a bearing, the rotating shaft 30 is connected with the support plate 31 through a bearing, and specifically, the rotating shaft 30 is fixedly connected with the drill drum 40; specifically, the spindle 30 and the drill barrel 40 may be connected by a bolt, a thread, or a clamping connection.
As an example, as shown in connection with fig. 1, the drive mechanism includes a rack 21, a gear 22, and a drive motor assembly 23. The rack 21 is slidably connected to the bracket 10 and connected to the spindle 20, for driving the spindle 20 to move. The gear 22 is meshed with the rack 21 and is used for driving the rack 21 to move. A drive motor assembly 23 is coupled to the gear 22 and is configured to drive rotation of the gear 22.
If a hydraulic cylinder transmission mode is adopted, the drilling depth reaches more than 0.8 m, so that the length of the cylinder body is correspondingly 0.4 m to 0.8 m, and the processing cost and the assembly cost are high. If the screw-nut driving mode is adopted, the screw rod drives the rotating shaft, the support plate, the drill cylinder and the adjusting mechanism to move simultaneously due to the fact that the drilling depth is large, the screw rod is easy to vibrate and shake under the condition of long-distance heavy load, the internal mechanism of the soil column can be damaged, accuracy of experimental data of a soil sample is affected, and the screw rod is easy to bend, deform and even break.
The gear rack can operate under the conditions of long distance and heavy load, and has high precision and stable operation. Therefore, the driving mechanism in this embodiment adopts a gear-rack transmission mode. Specifically, the driving motor assembly 23 may be a servo motor, or a combination of a common motor and a decelerator. In practice, the slower the speed of the rack 21, the less impact on the earth column within the drill drum 40. In addition, in the present embodiment, by controlling the operation time of the driving motor assembly 23, the penetration depth of the slitting knife 41 can be precisely controlled.
As an example, as shown in fig. 1 and 7, a support rod 211 is provided at an end of the rack 21 near the main shaft 20. The strut 211 is slidably coupled to the bracket 10.
As shown in connection with fig. 1, the stand 10 includes a support platform 11 and legs 12. The support platform 11 is horizontally arranged, and as shown in fig. 6, the rack 21 is slidably connected to the support platform 11. The leg 12 is arranged vertically and provided with a chute 121. The supporting rod 211 is provided with a guide block 2111 for sliding fit with the chute 121.
As an example, as shown in connection with fig. 1 and 2, the rotation mechanism includes a worm wheel 32, a worm 33, and a rotation motor assembly 34. The worm wheel 32 is connected to the rotating shaft 30, and is used for driving the rotating shaft 30 to rotate. The worm 33 is engaged with the worm wheel 32, and is used to rotate the worm wheel 32. A rotating motor assembly 34 is provided on the support plate 31 and connected to the worm 33 for driving the worm 33 to rotate.
Because the bevel gear is in rolling contact, and the worm gear and the worm are in sliding contact, the vibration generated by the transmission mode of the worm gear is small, in addition, the single-stage speed ratio of the worm gear is large, and the size is small, so that the transmission mode of the worm gear is selected in the embodiment, the whole vibration is small, and the influence on the soil column in the drill drum 40 is small. Specifically, the rotary motor assembly 34 may be a servo motor, or a combination of a common motor and a decelerator.
As an example, as shown in fig. 3, 4, 5 and 8, a through hole is provided in the wall of the drill drum 40. The axial direction of the through hole is parallel to the axial direction of the drill barrel 40. The adjustment mechanism includes a transmission rod 51 and a transmission member. The transmission rod 51 is disposed in the through hole in a penetrating manner, and the first end of the transmission rod is connected with the first end of the transverse cutter 50, so as to drive the transverse cutter 50 to rotate around the axis of the transmission rod 51. The transmission member is connected to the second end of the transmission rod 51 and is used to drive the transmission rod 51 to rotate.
The transmission member drives the transmission rod 51 to rotate, and the transmission rod 51 drives the cross cutter 50 to rotate. When the cross cutter 50 is in the natural state, the cross cutter 50 is positioned in the crack, and at this time, the cross cutter 50 is not in contact with the soil column in the drill drum 40. When the cross cutter 50 rotates, the cross cutter 50 is in an extending state, at this time, the cross cutter 50 contacts with the soil column in the drill drum 40, and when the drill drum 40 drives the cross cutter 50 to rotate, the cross cutter 50 cuts the soil column in the drill drum 40.
In use, after the slitting knife 41 drills into a set depth, the driving mechanism is turned off, so that the slitting knife 41 stays at the set depth position; then the transmission component is started, the transverse cutter 50 is driven to rotate through the transmission rod 51, and meanwhile the rotating mechanism is started, so that the drill drum 40 drives the transverse cutter 50 to rotate, and the soil column is cut from outside to inside. When the transverse cutter 50 is rotated to a set angle, the soil column can be completely cut off, thereby being convenient for completely bringing the soil column back to the ground.
As an example, as shown in connection with fig. 8, the transmission member includes a first runner 52, a second runner 53, and an adjustment motor assembly 54. The first rotating wheel 52 is connected to the driving rod 51 and is used for driving the driving rod 51 to rotate. The second rotating wheel 53 is connected to the first rotating wheel 52, and is used for driving the first rotating wheel 52 to rotate. The adjusting motor assembly 54 is connected to the second rotating wheel 53, and is used for driving the second rotating wheel 53 to rotate.
Since the cross cutter 50 has a certain load and the rotation speed is slow, the adjusting motor assembly 54 may be a servo motor or a combination of a motor and a decelerator. Specifically, the first rotating wheel 52 and the second rotating wheel 53 may adopt a bevel gear transmission mode, a belt pulley transmission mode, or a sprocket chain transmission mode.
As an example, as shown in connection with fig. 8, the first and second rotating wheels 52 and 53 are bevel gears, and the first and second rotating wheels 52 and 53 are engaged. Compared with the transmission mode of the belt pulley and the transmission mode of the chain wheel and the chain, the transmission of the bevel gear is more stable and the transmission precision is higher, so the transmission mode of the bevel gear is adopted in the embodiment.
As an example, as shown in connection with fig. 1 and 7, the bracket 10 is provided with a chute. The length direction of the chute coincides with the axial direction of the main shaft 20. The support plate 31 is provided with a slider 311 for sliding engagement with the chute.
Specifically, the leg 12 is provided with a chute 121, and the support plate 31 is provided with a slider 311 for sliding engagement with the chute 121. Because the supporting rod 211 and the supporting plate 31 move simultaneously, the sliding groove 121 can be matched with the supporting plate 31 and the supporting rod 211 simultaneously, so that the processing difficulty is reduced, and the space is saved. Specifically, the sliding groove 121 may be a dovetail groove, and the sliding block 311 and the guiding block 2111 are adapted to the sliding groove 121.
As an example, as shown in connection with fig. 2 and 8, the drill drum 40 is provided with a weight 42. Because the drill pipe 40 is provided with the adjusting mechanism, the drill pipe 40 is found to have a heavy weight in practical application, and thus the balancing weight 42 is provided in this embodiment. The weight 42 can balance the drill pipe 40, and the operation is smoother.
As an example, as shown in connection with fig. 5, the slitting knife 41 is detachably connected to the drill drum 40. Since the longitudinal cutter 41 has a certain length, when the soil column in the drill pipe 40 is taken out after the drill pipe 40 returns to the ground, the soil column is easy to collide, so the longitudinal cutter 41 is detachably connected with the drill pipe 40 in this embodiment.
After the drilling cylinder 40 returns to the ground, the longitudinal cutter 41 is detached firstly, and at the moment, the hands of a worker can directly contact and touch the soil column in the drilling cylinder 40; after the worker manually supports the soil column, the transverse cutter 50 is reset, and then the soil column can be completely taken out.
As one example, the drill drum 40 is a clay or metal material that does not stick to soil.
The embodiment of the application also provides a transformer substation soil sampling method, which comprises the following steps:
(1) The tool for sampling the soil of the transformer substation is used, and the rotating mechanism is started;
(2) Starting the driving mechanism to enable the main shaft 20 to move until the slitter 41 contacts soil;
(3) The rotary mechanism and the driving mechanism are kept in an open state until the slitter 41 reaches a set cutting depth, and the driving mechanism is closed;
(4) The rotating mechanism keeps an open state, and opens the adjusting mechanism until the transverse cutter 50 rotates to a set angle, and closes the rotating mechanism and the adjusting mechanism;
(5) The drive mechanism is turned on to move the spindle 20 in the reverse direction until the slitter 41 returns to the ground.
As an example, in step (3), the rotation mechanism is operated at a high speed and the driving mechanism is operated at a low speed, so that the longitudinal cutter 41 reduces vibration when cutting the soil, thereby reducing the influence on the soil column in the drill drum 40.
As an example, in step (4), the adjusting mechanism is operated at a low speed and the rotating mechanism is operated at a high speed until the crosscutting knife 50 is rotated to a set angle. The cross cutter 50 cuts the earth pillar slowly from the outside to the inside, and reduces the vibration, thereby reducing the influence on the earth pillar in the drill drum 40.
As an example, in step (5), after the slitter 41 is returned to the ground, the slitter 41 is detached. After the earth column in the drill drum 40 is supported, the adjustment mechanism is turned on and the cross cutter 50 is reset. So that the earth pillar can be completely taken out.
When the tool is used for sampling soil, time and labor are saved, and the interference to the soil sample is small, so that the soil sample is favorable to maintain the original state, and the accuracy of experimental data is ensured.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (6)
1. A tool for sampling soil of a transformer substation, which is characterized in that: comprises a bracket; the main shaft is in sliding connection with the bracket; the driving mechanism is connected with the main shaft and is used for driving the main shaft to move along the axial direction of the main shaft; the rotating shaft is coaxially arranged with the main shaft and is rotationally connected with the main shaft; the support plate is connected with the support in a sliding manner and is rotationally connected with the rotating shaft; the rotating mechanism is arranged on the support plate, connected with the rotating shaft and used for driving the rotating shaft to rotate; the drilling barrel is coaxially arranged with the rotating shaft, the first end is connected with the rotating shaft, and the second end is provided with a longitudinal cutter for cutting soil along the axial direction of the drilling barrel in a rotating state; the drill cylinder is provided with a crack; the transverse cutter is arc-shaped and is positioned in the crack; the transverse cutter is rotationally connected with the wall of the drilling barrel and is used for cutting soil along the radial direction of the drilling barrel in an extending state; the adjusting mechanism is arranged on the drilling cylinder, connected with the transverse cutter and used for driving the transverse cutter to rotate;
the wall of the drill cylinder is provided with a through hole; the axial direction of the through hole is parallel to the axial direction of the drill cylinder;
the adjustment mechanism includes:
the transmission rod is arranged in the through hole in a penetrating way, and the first end of the transmission rod is connected with the first end of the transverse cutter and is used for driving the transverse cutter to rotate around the axis of the transmission rod; and
the transmission member is connected with the second end of the transmission rod and is used for driving the transmission rod to rotate;
the transmission member includes:
the first rotating wheel is connected with the transmission rod and is used for driving the transmission rod to rotate;
the second rotating wheel is connected with the first rotating wheel and is used for driving the first rotating wheel to rotate; and
the adjusting motor assembly is connected with the second rotating wheel and used for driving the second rotating wheel to rotate; the first rotating wheel and the second rotating wheel are bevel gears respectively;
the driving mechanism includes:
the rack is connected with the bracket in a sliding way and is connected with the main shaft and used for driving the main shaft to move;
the gear is meshed with the rack and is used for driving the rack to move; and
the driving motor assembly is connected with the gear and used for driving the gear to rotate;
a supporting rod is arranged at one end, close to the main shaft, of the rack; the support rod is connected with the bracket in a sliding way;
the bracket is provided with a chute; the length direction of the sliding groove is consistent with the axial direction of the main shaft;
the support plate is provided with a sliding block which is in sliding fit with the sliding groove;
the support comprises a supporting platform and supporting legs, wherein the supporting platform is horizontally arranged, the rack is in sliding connection with the supporting platform, the supporting legs are vertically arranged and are provided with sliding grooves, and guide blocks which are used for being in sliding fit with the sliding grooves are arranged on the supporting rods.
2. A tool for soil sampling of a substation according to claim 1, wherein said rotary mechanism comprises:
the worm wheel is connected with the rotating shaft and is used for driving the rotating shaft to rotate;
the worm is meshed with the worm wheel and used for driving the worm wheel to rotate; and
and the rotating motor component is arranged on the support plate and connected with the worm and used for driving the worm to rotate.
3. A tool for soil sampling of a substation as claimed in claim 1, wherein: the first rotating wheel and the second rotating wheel are bevel gears, and the first rotating wheel is meshed with the second rotating wheel.
4. A tool for soil sampling of a substation as claimed in claim 1, wherein: the drilling cylinder is provided with a balancing weight.
5. A tool for soil sampling of a substation as claimed in claim 1, wherein: the slitting knife is detachably connected with the drilling barrel.
6. A substation soil sampling method, comprising:
use of a tool for soil sampling of a substation according to any one of claims 1 to 5, and opening the rotating mechanism;
starting a driving mechanism to enable the main shaft to move until the slitter contacts soil;
the rotary mechanism and the driving mechanism are kept in an open state until the slitter reaches a set cutting depth, and the driving mechanism is closed;
the rotating mechanism keeps an open state, and opens the adjusting mechanism until the transverse cutter rotates to a set angle, and closes the rotating mechanism and the adjusting mechanism;
and starting the driving mechanism to enable the main shaft to reversely move until the slitter returns to the ground.
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| CN202010318880.2A CN111537264B (en) | 2020-04-21 | 2020-04-21 | Tool and method for sampling soil of transformer substation |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111946255B (en) * | 2020-09-03 | 2021-04-23 | 中国冶金地质总局新疆地质勘查院 | Cliff crawling type geological exploration equipment |
| CN112326318A (en) * | 2020-11-18 | 2021-02-05 | 国网山东省电力公司桓台县供电公司 | A soil sample excavates sampling device for construction of transmission transformer substation |
| CN113029656B (en) * | 2021-03-23 | 2024-04-09 | 华能青岛热电有限公司 | Raw material sampling device for coal yard |
| CN113502864B (en) * | 2021-08-20 | 2022-10-11 | 张朝林 | Engineering excavation method and engineering excavation equipment |
| CN117825099B (en) * | 2024-03-05 | 2024-05-10 | 洛阳葛丰农业有限公司 | Soil sampling device is used in construction of high standard farmland |
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