Road compactness detection device for road engineering
Through the design of road engineering for road engineering, which includes racks, drivers and drilling devices, the road pressure volume detection device is used to solve the problem of inaccurate sampling and time consumption in the detection of the ring knife method, and the more efficient and more accurate pressure pressure is achieved. Real detection.
Patent Information
- Application Number
- CN202420983303.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing ring tool detection methods are difficult to ensure the perpendicularity of the ring tool during sampling, which affects the detection accuracy, and the error rate during sampling is high and time-consuming, resulting in greater damage to the compacted layer.
A road engineering pressure detection device is designed, including racks, drivers and drilling devices. Through the lifting device and the worm snail transmission device, the sampling motor is mounted in the vertical direction to ensure that the sampling motor is vertically vertically from the ground. Use hollow drilling and sampling components in the drilling device to limit the depth of the drilling through the limit ring to ensure the consistency of each drill.
The accuracy and success rate of the sampling process are improved, the probability of mistakes is reduced, the detection time is shortened, and the destruction of the pressure on the actual layer is reduced.
Smart Images
Figure CN222390407U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road engineering detection, in particular to a road compaction detection device for road engineering. Background Art
[0002] Road compaction refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, generally expressed as a percentage. It is one of the key indicators for roadbed and pavement construction quality inspection, indicating the density condition after on-site compaction. The higher the compaction, the greater the density, and the better the overall performance of the material. Existing methods for testing compaction include pit digging and sand filling method, ring knife method, coring method, etc. Different testing methods are suitable for road surfaces of different materials. Among them, the ring knife method is suitable for the density of fine-grained soil and fine-grained soil stabilized by inorganic binders.
[0003] When using the existing knife ring method for testing, it is necessary to first level the ground, place the knife ring on the leveled ground, and then place the ring cover on the top of the knife ring, ensuring that the axis of the knife ring and the ring cover are perpendicular to the ground, hammer the guide rod on the top of the ring cover, and drive the knife ring into the compacted layer until the ring cover is flush with the ground, and then dig around the knife ring until the soil layer around the knife ring is lower than the bottom of the knife ring, and finally take out the knife ring and the sample. Among them, it is difficult to ensure that the knife ring is vertical when hammering it into the ground, which affects the detection accuracy. In addition, in the process of taking out the sample, the bottom of the sample must be guaranteed to protrude from the bottom of the knife ring, and the probability of error is high. It usually requires multiple samplings, which causes great damage to the compacted layer and takes a long time. Utility Model Content
[0004] In order to make up for the shortcomings of high error rate and difficult sampling when the ring knife method is used for sampling, the utility model provides a road compaction detection device for road engineering.
[0005] The technical solution of the utility model is:
[0006] A road compaction detection device for road engineering, comprising:
[0007] The frame includes a vehicle frame, a positioning frame is arranged inside the vehicle frame, a positioning hole is penetrated through the front of the positioning frame, a driving device is arranged on the upper part of the positioning frame, and the driving device is connected to a drilling device;
[0008] The driving device comprises a sampling motor, which is installed on the front side of the positioning frame through a lifting assembly, and the lifting assembly is used to drive the sampling motor to move in the vertical direction. The axis of the sampling motor output shaft passes through the center of the positioning hole, and the sampling motor output shaft is connected to the drilling device to drive the drilling device to rotate;
[0009] The drilling device comprises a hollow drill, the top of which is connected to the output shaft of a sampling motor, a sampling assembly is detachably installed in the hollow drill, the hollow drill is used to remove the compacted layer around the sampling assembly, and the sampling assembly is used to store a portion of the compacted layer soil samples.
[0010] Preferably, a guide hole is provided on the top of the positioning frame, and the lifting assembly is installed on the front and rear sides of the guide hole.
[0011] Preferably, the lifting assembly includes a sliding frame, the sampling motor is fixedly mounted on the front top surface of the sliding frame, a limiting bolt is provided on the back of the sliding frame, the limiting bolt passes through a guide hole and is connected to a clamping plate, the clamping plate and the sliding frame clamp the positioning frame and can slide along the guide hole.
[0012] Preferably, a limit frame is provided in the middle part of the back side of the positioning frame, a lifting screw is rotatably installed between the limit frames, a lifting block is threadedly connected to the middle part of the lifting screw, the lifting block is fixedly connected to the splint, and the top end of the lifting screw is connected to a handwheel through a worm gear transmission device.
[0013] Preferably, a limiting ring is provided on the top of the outer side of the hollow drill, the outer diameter of the hollow drill is equal to the inner diameter of the positioning hole, and the outer diameter of the limiting ring is larger than the inner diameter of the positioning hole.
[0014] Preferably, the sampling assembly comprises a sampling ring, the outer diameter of the sampling ring is the same as the inner diameter of the hollow drill, the bottom end of the sampling ring is higher than the bottom end of the hollow drill, a connecting plate is provided on the top of the sampling ring, and an isolation plate is provided between the connecting plate and the sampling ring.
[0015] Preferably, a spacer ring is provided in the center of the top of the connecting plate, and a plurality of connecting screws are provided on the top of the connecting plate and outside the spacer ring. The top ends of the connecting screws pass through the hollow drill and are connected to the top of the screws with fixing nuts.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The utility model sets a lifting device, rotates the hand wheel, and uses the worm gear transmission device to drive the lifting screw to rotate, thereby driving the upgrade block to move, thereby driving the sliding frame to move through the clamping plate, and then driving the sampling motor to move, and uses the guide hole to limit the moving direction of the sliding frame to ensure that the sampling motor is kept vertical to the ground when moving, thereby ensuring the sampling quality;
[0018] 2. The utility model utilizes a sampling motor to drive the hollow drill to rotate, thereby driving the sampling assembly to rotate, utilizing the hollow drill to remove the compacted soil outside the sampling ring, utilizing a limit ring to limit the drilling depth of the hollow drill to ensure the consistency of the borehole, and after the drilling is completed, unscrewing the fixing nut can separate the hollow drill and the sampling assembly, since the bottom end of the hollow drill is lower than the bottom end of the sampling ring, the soil layer around the sampling ring is lower than the bottom end of the sampling ring, thereby reducing the difficulty of sampling and improving the success rate of sampling. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the frame structure in the utility model;
[0021] Figure 3 This is the first schematic diagram of the structure of the driving device in the utility model;
[0022] Figure 4 This is the second schematic diagram of the driving device structure in the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the sampling device in the utility model;
[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the sampling device in the utility model.
[0025] The meaning of each number in the figure is:
[0026] 1. Frame; 11. Frame; 12. Wheel; 13. Handle; 14. Positioning frame; 15. Positioning hole; 16. Guide hole;
[0027] 2. Driving device; 21. Sliding frame; 22. Sampling motor; 23. Limit bolt; 24. Clamp; 25. Limit frame; 26. Lifting block; 27. Lifting screw; 28. Worm gear transmission device; 29. Hand wheel;
[0028] 3. Drilling device; 31. Hollow drill; 32. Limiting ring; 33. Sampling ring; 34. Isolation plate; 35. Connecting plate; 36. Spacer ring; 37. Connecting screw; 38. Fixing nut. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0031] Embodiment 1:
[0032] See also Figure 1-6 The utility model describes the above technical solution in detail through the following embodiments:
[0033] A road compaction detection device for road engineering, comprising:
[0034] The frame 1 comprises a vehicle frame 11 , a positioning frame 14 is arranged inside the vehicle frame 11 , a positioning hole 15 is penetrated through the front of the positioning frame 14 , a driving device 2 is arranged on the upper part of the positioning frame 14 , and a drilling device 3 is connected to the driving device 2 .
[0035] The frame 11 is made of square steel pipes, and a wheel 12 is rotatably mounted on the bottom of the frame 11 through bolts, and a handle 13 is welded on the top of the back of the frame 11. Holding the handle 13 and applying a forward or backward force can drive the frame 1 forward or backward.
[0036] The positioning frame 14 is made of steel plate welding, and the positioning frame 14 is welded and installed on the inner side of the front part of the frame 11, and the bottom of the positioning frame 14 is parallel to the ground. The positioning hole 15 is located at the front center of the positioning frame 14, and the positioning hole 15 is a circular hole.
[0037] A guide hole 16 is formed on the top of the positioning frame 14 .
[0038] The guide hole 16 is a waist-shaped hole.
[0039] The driving device 2 includes a sampling motor 22, which is installed on the front side of the positioning frame 14 through a lifting assembly. The lifting assembly is used to drive the sampling motor 22 to move in the vertical direction. The axis of the output shaft of the sampling motor 22 passes through the center of the positioning hole 15. The output shaft of the sampling motor 22 is connected to the drilling device 3 to drive the drilling device 3 to rotate. The lifting assembly is installed on both sides of the guide hole 16.
[0040] The sampling motor 22 may be a three-phase AC motor.
[0041] The lifting assembly includes a sliding frame 21, a sampling motor 22 is fixedly installed on the front top surface of the sliding frame 21, a limiting bolt 23 is provided on the back of the sliding frame 21, the limiting bolt 23 passes through the guide hole 16 and is connected to a clamping plate 24, the clamping plate 24 and the sliding frame 21 clamp the positioning frame 14 and can slide along the guide hole 16.
[0042] The sampling motor 22 is fixedly mounted on the top surface of the front side of the sliding frame 21 by bolts, and the output shaft of the sampling motor 22 passes through the sliding frame 21 downward. The limiting bolts 23 are welded to the sliding frame 21. There are four limiting bolts 23. The top ends of the limiting bolts 23 pass through the clamping plate 24 and are fixed to the clamping plate 24 by nuts. When the clamping plate 24 and the sliding frame 21 slide along the guide hole 16, the sampling motor 22 can be driven to slide up and down.
[0043] A limit frame 25 is provided in the middle of the back side of the positioning frame 14, and a lifting screw 27 is rotatably installed between the limit frames 25. A lifting block 26 is threadedly connected to the middle of the lifting screw 27. The lifting block 26 is fixedly connected to the clamping plate 24 by bolts, and the top of the lifting screw 27 is connected to a hand wheel 29 through a worm gear transmission device 28.
[0044] The limit frame 25 has two pieces, and the limit frame 25 is welded to the positioning frame 14. The worm gear transmission device 28 adopts a well-known worm wheel and worm, and the self-locking properties of the worm and worm can be used to achieve the self-locking of the lifting screw 27. The worm wheel is clamped with the top of the lifting screw 27, the worm is meshed with the worm wheel, and the end of the worm is clamped with the handwheel 29. When the handwheel 29 is turned, the lifting screw 27 can be driven to rotate through the worm gear transmission device 28. Since the lifting block 26 and the clamping plate 24 are fixedly connected by bolts and the lifting block 26 is threadedly connected to the lifting screw 27, when the lifting screw 27 rotates, the clamping plate 24 can be driven to move up and down through the lifting block 26, thereby driving the sliding frame 21 to move up and down through the limit bolt 23, and then driving the sampling motor 22 to move up and down.
[0045] The drilling device 3 includes a hollow drill 31, the top of the hollow drill 31 is connected to the output shaft of the sampling motor 22 through a coupling, and a sampling component is detachably installed in the hollow drill 31. The hollow drill 31 is used to remove the compacted layer around the sampling component, and the sampling component is used to preserve part of the compacted layer soil samples.
[0046] When the sampling motor 22 is working, it can drive the hollow drill 31 to rotate through the output shaft, thereby driving the sampling component to rotate. The sampling motor 22 is driven up and down by the handwheel 29, which can drive the hollow drill 31 to move up and down. When the hollow drill 31 rotates and moves downward at the same time, it can drill a hole in the ground.
[0047] A limiting ring 32 is welded on the top of the outer side of the hollow drill 31 . The outer diameter of the hollow drill 31 is equal to the inner diameter of the positioning hole 15 , and the outer diameter of the limiting ring 32 is larger than the inner diameter of the positioning hole 15 .
[0048] Since the outer diameter of the limiting ring 32 is larger than the inner diameter of the positioning hole 15, when the hollow drill 31 moves downward, when the limiting ring 32 contacts the positioning frame 14, the hollow drill 31 cannot continue to move downward, thereby limiting the drilling depth of the hollow drill 31 to ensure that the drilling depth is consistent each time.
[0049] The sampling assembly includes a sampling ring 33 , the outer diameter of the sampling ring 33 is the same as the inner diameter of the hollow drill 31 , the bottom end of the sampling ring 33 is higher than the bottom end of the hollow drill 31 , a connecting plate 35 is provided on the top of the sampling ring 33 , and an isolation plate 34 is provided between the connecting plate 35 and the sampling ring 33 .
[0050] The connecting plate 35 is threadedly connected to the sampling ring 33, and the isolating plate 34 is clamped to the connecting plate 35. The inner diameter of the isolating plate 34 is the same as the inner diameter of the sampling ring 33. The connecting plate 35 and the sampling ring 33 are made of metal, and the isolating plate 34 is made of plastic.
[0051] A spacer ring 36 is welded at the center of the top of the connecting plate 35 , and four connecting screws 37 are welded at the top of the connecting plate 35 and outside the spacer ring 36 . The top of the connecting screw 37 passes through the top of the hollow drill 31 and is threadedly connected to a fixing nut 38 .
[0052] After the connecting screw 37 passes through the top of the hollow drill 31, it is fixed by the fixing nut 38, and cooperates with the spacer ring 36 to clamp the top of the hollow drill 31, so that the connecting plate 35 is fixed to the hollow drill 31. When the hollow drill 31 rotates, the connecting screw 37 can drive the connecting plate 35 to rotate, thereby driving the sampling ring 33 to rotate. When the hollow drill 31 moves downward, the spacer ring 36 can drive the connecting plate 35 to move downward, thereby driving the sampling ring 33 to move downward.
[0053] When the operator of this embodiment uses this device, he turns the hand wheel 29 to drive the lifting screw 27 to rotate through the worm gear transmission device 28, thereby driving the lifting block 26 to move upward, and using the lifting block 26 to drive the clamping plate 24 to move upward, thereby driving the sampling motor 22 to move upward through the sliding frame 21 until the sliding frame 21 can no longer move.
[0054] Hold the handle 13 with both hands and push the frame 1 to move toward the predetermined sampling point until the center of the sampling point coincides with the axis of the positioning hole 15 .
[0055] The hand wheel 29 is turned to drive the sampling motor 22 to move downward, thereby driving the drilling device 3 to move downward until the bottom end of the hollow drill 31 contacts the ground.
[0056] The sampling motor 22 is started, and the output shaft of the sampling motor 22 drives the hollow drill 31 to rotate. The hollow drill 31 drives the connecting plate 35 to rotate through the connecting screw 37, thereby driving the sampling ring 33 to rotate. At the same time, the hand wheel 29 is turned to drive the sampling motor 22 to move downward, thereby driving the drilling device 3 to move downward and start drilling. Until the limit ring 32 abuts against the positioning frame 14. Stop turning the hand wheel 29 and stop the sampling motor 22 at the same time.
[0057] Remove the fixing nut 38 , turn the hand wheel 29 , drive the sampling motor 22 to move upward, and then drive the hollow drill 31 to move upward until the bottom end of the hollow drill 31 is higher than the top end of the spacer ring 36 .
[0058] The rack 1 is pushed to move the rack 1 away from the sampling ring 33 .
[0059] At this time, the soil layer around the sampling ring 33 is lower than the bottom of the sampling ring 33. Cut off the soil at the bottom of the sampling ring 33 close to the bottom of the soil layer, grab the spacing ring 36 and take out the sampling ring 33, the isolation plate 34 and the connecting plate 35 together.
[0060] Rotating the connecting plate 35 can separate the connecting plate 35 from the sampling ring 33 . Due to the existence of the isolation plate 34 , the connecting plate 35 will not bring out the sample in the sampling ring 33 .
[0061] The soil at the bottom of the sampling ring 33 is scraped flat to complete the sampling.
[0062] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A road compaction detection device for road engineering, characterized in that: include: A frame (1), the frame (1) comprising a vehicle frame (11), a positioning frame (14) being arranged inside the vehicle frame (11), a positioning hole (15) being provided through the front of the positioning frame (14), a driving device (2) being arranged on the upper part of the positioning frame (14), and the driving device (2) being connected to a drilling device (3); The driving device (2) comprises a sampling motor (22), the sampling motor (22) is installed on the front side of the positioning frame (14) through a lifting assembly, the lifting assembly is used to drive the sampling motor (22) to move in the vertical direction, the axis of the output shaft of the sampling motor (22) passes through the center of the positioning hole (15), and the output shaft of the sampling motor (22) is connected to the drilling device (3) and is used to drive the drilling device (3) to rotate; The drilling device (3) comprises a hollow drill (31), the top of the hollow drill (31) is connected to the output shaft of the sampling motor (22), a sampling assembly is detachably installed in the hollow drill (31), the hollow drill (31) is used to remove the compacted layer around the sampling assembly, and the sampling assembly is used to store a portion of the compacted layer soil sample.
2. A road compaction detection device for road engineering as claimed in claim 1, characterized in that: A guide hole (16) is provided on the top of the positioning frame (14), and the lifting assembly is installed on both sides of the guide hole (16) in front and behind.
3. A road compaction detection device for road engineering as claimed in claim 2, characterized in that: The lifting assembly comprises a sliding frame (21), the sampling motor (22) is fixedly mounted on the front top surface of the sliding frame (21), a limiting bolt (23) is arranged on the back of the sliding frame (21), the limiting bolt (23) passes through the guide hole (16) and is connected with a clamping plate (24), and the clamping plate (24) and the sliding frame (21) clamp the positioning frame (14) and can slide along the guide hole (16).
4. A road compaction detection device for road engineering as claimed in claim 3, characterized in that: A limiting frame (25) is provided in the middle of the back side of the positioning frame (14), a lifting screw (27) is rotatably installed between the limiting frames (25), a lifting block (26) is threadedly connected to the middle of the lifting screw (27), the lifting block (26) is fixedly connected to the clamping plate (24), and the top end of the lifting screw (27) is connected to a hand wheel (29) through a worm gear transmission device (28).
5. A road compaction detection device for road engineering as claimed in claim 1, characterized in that: A limiting ring (32) is provided on the top of the outer side of the hollow drill (31); the outer diameter of the hollow drill (31) is equal to the inner diameter of the positioning hole (15); and the outer diameter of the limiting ring (32) is greater than the inner diameter of the positioning hole (15).
6. A road compaction detection device for road engineering as claimed in claim 5, characterized in that: The sampling assembly comprises a sampling ring (33), the outer diameter of the sampling ring (33) is the same as the inner diameter of the hollow drill (31), the bottom end of the sampling ring (33) is higher than the bottom end of the hollow drill (31), a connecting plate (35) is provided at the top of the sampling ring (33), and an isolation plate (34) is provided between the connecting plate (35) and the sampling ring (33).
7. A road compaction detection device for road engineering as claimed in claim 6, characterized in that: A spacer ring (36) is provided at the center of the top of the connecting plate (35), and a plurality of connecting screws (37) are provided at the top of the connecting plate (35) and outside the spacer ring (36). The top ends of the connecting screws (37) pass through the top of the hollow drill (31) and are connected to fixing nuts (38).