A road construction ramming device suitable for collapsible loess geology

Abstract

The application relates to a road construction ramming device suitable for collapsible loess geology, which comprises a vehicle frame, a water tank, a ramming machine box, a caterpillar walking system, a soil humidity sensor probe, a driving mechanism and a controller. The vehicle frame is fixed on the caterpillar walking system, the water tank and the ramming machine box are arranged above the vehicle frame, the water tank is provided with a spray head, and the soil humidity sensor probe is arranged below the vehicle head. The ramming machine box is internally provided with a motor, a gear pair, a rotating shaft, an eccentric wheel and a movable column. The rotating shaft is installed on the side wall of the ramming machine box through a bearing, the motor drives the rotating shaft to rotate through the gear pair, the eccentric wheel is sleeved on the rotating shaft, one end of the movable column extends out of the bottom of the ramming machine box to connect a ramming plate, and the other end is in abutment with the eccentric wheel. The ramming plate is provided with a spring, and the top end of the spring is connected with the ramming machine box. The controller is electrically connected with the soil humidity sensor probe, a spray head switch, the motor and the driving mechanism, and controls the on-off state of the spray head and the pressing frequency of the ramming plate according to the soil humidity.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tamping devices, and relates to a road construction tamping device suitable for collapsible loess. BACKGROUND

[0002] Loess is formed by the accumulation of wind-blown dust under arid conditions through a loessification process, and is a soil formed under the action of dry and cold climate in a certain geological period. Collapsible loess is divided into self-weight collapsible loess and non-self-weight collapsible loess, and its distribution range is mainly the loess plateau regions of Gansu, Ningxia, Shaanxi and Shanxi in China. Under the action of self-weight stress of overlying soil layers or under the combined action of self-weight stress and additional stress, the soil that causes significant additional deformation due to the destruction of the structure of the soil after immersion is called collapsible soil, which belongs to a special soil.

[0003] In the loess region of China, the disease of collapsible loess subgrade is a big problem. Due to the erosion of rainfall, serious geological disasters such as water and soil loss, foundation settlement and slope landslide often occur, which has a great impact on agricultural production and people's life in China.

[0004] In order to solve the above problems related to collapsible loess, a tamping machine is generally used to tamp collapsible loess in engineering, but the tamping machine on the market still has the following problems: 1) the soil needs to be kept at a suitable water content during tamping; 2) the same site needs to be tamped for many times, resulting in slow work progress; 3) the terrain where tamping work is needed is usually complex, or the road surface is muddy and winding, or the road surface has a certain slope, and ordinary tamper is difficult to perform well in such harsh terrain environment.

[0005] Therefore, in order to solve the existing problem of tamping of collapsible loess subgrade, a new road construction tamping device suitable for collapsible loess is needed. SUMMARY

[0006] To solve the above technical problems, the purpose of the present application is to provide a road construction tamping device suitable for collapsible loess, which can control the alternate work or simultaneous work of two tamping plates, speed up the progress of collapsible loess subgrade tamping work, adjust the water pressure of the water spraying head and the drop hammer frequency of the tamper according to the collapsible grade, so as to strictly control the water content of collapsible loess in the range of the optimum water content in real time, and meet the construction requirements of collapsible loess subgrade.

[0007] The application provides a road construction ramming device suitable for collapsible loess geology, which comprises a vehicle frame, a water tank, a ramming machine box, a track walking system, a soil humidity sensor probe, a driving mechanism and a controller; the vehicle frame is fixed on the track walking system, the water tank and the ramming machine box are arranged above the vehicle frame, the water tank is arranged at the front of the vehicle frame, a spray head is arranged in front of the water tank, and the soil humidity sensor probe is arranged below the front of the vehicle frame; the driving mechanism is arranged below the vehicle frame and connected with the track walking system; the ramming machine box is internally provided with a motor, a gear pair, a rotating shaft, two eccentric wheels and two movable columns; the motor is fixed on the bottom plate of the ramming machine box, the rotating shaft is arranged on the side wall of the ramming machine box through bearings at both ends, the motor drives the rotating shaft to rotate through the gear pair, the two eccentric wheels are fixedly arranged on the rotating shaft, one end of the movable column extends out of the through hole in the bottom of the ramming machine box and is connected with a ramming plate, and the other end is in abutment with the corresponding eccentric wheel; two springs are arranged on the top of the ramming plate, the top ends of the springs are connected with the bottom plate of the ramming machine box, and the two springs are symmetrically arranged on the two sides of the movable column; the controller is arranged on the vehicle frame and electrically connected with the soil humidity sensor probe, the spray head switch, the motor and the driving mechanism, and the controller controls the opening and closing state of the spray head and the pressing frequency of the ramming plate according to the soil humidity.

[0008] In the road construction ramming device suitable for collapsible loess geology, the top surface of the ramming plate is provided with a mounting groove, and the two side walls of the mounting groove are provided with limiting grooves; the lower end side wall of the movable column is symmetrically provided with two limiting blocks, and the bottom of the movable column is inserted into the mounting groove, and the two limiting blocks on the side wall of the movable column are respectively inserted into the corresponding limiting grooves.

[0009] In the road construction ramming device suitable for collapsible loess geology, the track walking system comprises two groups of track structures, and each track structure comprises a driving wheel, a load wheel and a track; and the driving mechanism is connected with the driving wheel.

[0010] In the road construction ramming device suitable for collapsible loess geology, the top of the water tank is provided with a water inlet.

[0011] In the road construction ramming device suitable for collapsible loess geology, the top of the ramming machine box is provided with a box cover, and a handle is arranged on the box cover.

[0012] In the road construction ramming device suitable for collapsible loess geology, the controller is used for receiving the soil humidity information collected by the soil humidity sensor probe, and when the soil humidity is less than a set threshold value, the controller controls the spray head to be opened and controls the motor speed to be adjusted to increase the pressing frequency of the ramming plate.

[0013] The road construction ramming device is further provided with a wireless communication module connected with the controller, the controller is connected with a remote control terminal through the wireless communication module, and the remote control terminal is used for receiving a remote control instruction.

[0014] In the road construction ramming device suitable for collapsible loess geology of the present application, the vehicle frame, water tank and ramming machine box body are made of 40Cr steel material.

[0015] The road construction ramming device suitable for collapsible loess geology of the present application has at least the following beneficial effects:

[0016] 1. The soil moisture sensor probe and the controller are arranged, the water spraying switch and the ramming plate drop hammer frequency are adjusted according to the real-time detection of collapsibility grade, the water content of collapsible loess is strictly controlled within the range of the optimum water content, the collapsible loess roadbed construction requirement is met, and the degree of dust flying can be reduced.

[0017] 2. The ramming plate is arranged as two pieces, the vibration amplitude can be adjusted by the controller and the ramming plate can work simultaneously, and the progress of the collapsible loess roadbed ramming work is accelerated.

[0018] 3. The vehicle body material is made of 40Cr steel material, which has the characteristics of high strength and low price, and is suitable for roadbed ramming work under current various regional conditions.

[0019] 4. The driving wheel and the load wheel are arranged in the track walking system, which can work in muddy and winding road surface or road surface with a certain slope, has good comprehensive performance, can prolong the service life of the ramming device as a whole, and has simple overall construction process and small pollution.

[0020] 5. The whole structure of the present application is stable, the controller can be controlled by the remote terminal throughout the whole process, the labor amount of workers is greatly reduced, and the work efficiency of the collapsible loess roadbed ramming work is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the road construction ramming device suitable for collapsible loess geology of the present application;

[0022] Figure 2 is a schematic view of the internal structure of the ramming machine box body;

[0023] In the figure: 1-vehicle frame; 2-water tank; 21-water inlet; 22-sprayer; 3-ramming machine box body; 31-motor; 32-gear pair; 33-rotating shaft; 34- eccentric wheel; 35-movable column; 36-ramming plate; 37-limiting block; 38-limiting groove; 39-spring; 4-track walking system; 41-driving wheel; 42-load wheel; 43-track; 5-soil moisture sensor probe; 6-box cover; 7-box handle. DETAILED DESCRIPTION

[0024] As Figure 1 and Figure 2As shown, the road construction ramming device suitable for collapsible loess geology of the present application comprises: a vehicle frame 1, a water tank 2, a ramming machine box 3, a track walking system 4, a soil moisture sensor probe 5, a driving mechanism and a controller. The vehicle frame 1 is fixed on the track walking system 4, the water tank 2 and the ramming machine box 3 are placed above the vehicle frame 1, the water tank 2 is located at the vehicle head position, a plurality of spray heads 22 are arranged in front of the water tank 2, and the spray heads 22 are located below the water tank. The soil moisture sensor probe 5 is arranged below the vehicle head. The driving mechanism is arranged below the vehicle frame 1, the driving mechanism is connected with the track walking system 4, and the track walking system 4 is driven to run.

[0025] The ramming machine box 3 is provided with a motor 31, a gear pair 32, a rotating shaft 33, two eccentric wheels 34 and two movable columns 35. The motor 31 is fixed on the bottom plate of the ramming machine box 3, and the rotating shaft 33 is installed on the side wall of the ramming machine box through bearings at both ends. The motor 31 drives the rotating shaft 33 to rotate through the gear pair 32. The two eccentric wheels 34 are fixedly sleeved on the rotating shaft 33 and rotate eccentrically. One end of the movable column 35 extends out of the through hole at the bottom of the ramming machine box 3 and is connected with the ramming plate 36, and the other end abuts against the corresponding eccentric wheel 34, so that the movable column 35 drives the ramming plate 36 to move up and down with the rotation of the eccentric wheel 34. Two springs 39 are arranged on the top of the ramming plate 36, the top ends of the springs 39 are connected with the bottom plate of the ramming machine box 3, and the two springs 39 are symmetrically arranged on both sides of the movable column 35, which plays a role of elastic buffering.

[0026] The controller is arranged on the vehicle frame 1 and electrically connected with the soil moisture sensor probe 5, the spray head switch, the motor 31 and the driving mechanism respectively, and the controller controls the on-off state of the spray head 22 and the pressing frequency of the ramming plate 36 according to the soil moisture.

[0027] The top surface of the ramming plate 36 is provided with a mounting groove, and the two side walls of the mounting groove are provided with limiting grooves 38; two limiting blocks 37 are symmetrically arranged on the lower end side wall of the movable column 35, the bottom of the movable column 35 is inserted into the mounting groove, and the two limiting blocks 37 on the side wall of the movable column 35 are respectively inserted into the corresponding limiting grooves 38. The limiting grooves 38 and the limiting blocks 37 realize the movable connection of the ramming plate 36 and the movable column 35, and the pressing angle of the ramming plate 36 can be adjusted according to the flatness of the ground, so that the ramming plate 36 is more fitted to the ground.

[0028] The track walking system 4 comprises two groups of track structures, and each track structure comprises a driving wheel 41, a weight wheel 42 and a track 43. The driving mechanism is connected with the driving wheel 41, and the track walking system 4 is arranged to enable the device to work normally in complex terrain.

[0029] The top of the water tank 2 is provided with a water inlet 21. The top of the ramming machine box 3 is provided with a box cover 6, and the box cover is provided with a handle 7.

[0030] The controller is used for receiving the soil humidity information collected by the soil humidity sensor probe 5, and controls to open the spray head when the soil humidity is less than the set threshold value, and controls to adjust the motor speed to increase the pressing frequency of the ramming plate. In specific implementation, the water pressure and water spraying amount of the spray head can also be fine-adjusted according to the soil collapsibility grade.

[0031] The road construction ramming device is further provided with a wireless communication module connected with the controller, the controller is connected with a remote control terminal through the wireless communication module to receive the remote control instruction and realize remote control.

[0032] In specific implementation, the vehicle frame 1, the water tank 2 and the ramming machine box body 4 are made of 40Cr steel material. The device has the characteristics of high strength and low price, and is suitable for roadbed ramming work under various regional conditions.

[0033] The application can control two ramming plates to work alternately or simultaneously, speeds up the progress of the collapsible loess roadbed ramming work, sets the soil humidity sensor probe on the front side of the vehicle body to detect the collapsibility grade in real time, adjusts the water pressure of the spray head and the rammer drop frequency according to the collapsibility grade, controls the water content of the collapsible loess in the range of the optimal water content in real time, and meets the construction requirements of the collapsible loess roadbed.

[0034] The above description is only the preferred embodiment of the application, and is not used to limit the idea of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A road construction compaction device suitable for collapsible loess soil, characterized in that, include: The system comprises a chassis, a water tank, a compactor housing, a tracked walking system, a soil moisture sensor probe, a drive mechanism, and a controller. The chassis is fixed to the tracked walking system. The water tank and compactor housing are placed on top of the chassis, with the water tank located at the front of the chassis. A nozzle is positioned in front of the water tank, and the soil moisture sensor probe is located below the front of the chassis. The drive mechanism is located below the chassis and connected to the tracked walking system. The compactor housing contains a motor, a gear pair, a rotating shaft, two eccentric wheels, and two movable columns. The motor is fixed to the base plate of the compactor housing, and the two ends of the rotating shaft are mounted to the compactor housing via bearings. On the side wall, the motor drives the rotating shaft to rotate through a gear pair. Two eccentric wheels are fixedly sleeved on the rotating shaft. One end of the movable column extends from the through hole at the bottom of the compactor box and connects to the compaction plate. The other end abuts against the corresponding eccentric wheel. Two springs are provided on the top of the compaction plate. The top of the springs is connected to the bottom plate of the compactor box. The two springs are symmetrically arranged on both sides of the movable column. The controller is set on the frame and is electrically connected to the soil moisture sensor probe, the nozzle switch, the motor and the drive mechanism. The controller controls the on / off state of the nozzle and the pressing frequency of the compaction plate according to the soil moisture, and controls the two compaction plates to work alternately or simultaneously. The top surface of the tamping plate is provided with an installation groove, and the two side walls of the installation groove are provided with limiting grooves; two limiting blocks are symmetrically provided on the lower side wall of the movable column, the bottom of the movable column is inserted into the installation groove, and the two limiting blocks on its side wall are respectively inserted into the corresponding limiting grooves. The controller is used to receive soil moisture information collected by the soil moisture sensor probe. When the soil moisture is less than a set threshold, it controls the nozzle to open and simultaneously controls the motor speed to increase the pressing frequency of the compaction plate. The road construction compaction device is also equipped with a wireless communication module connected to the controller. The controller connects to a remote control terminal through the wireless communication module to receive remote control commands.

2. The road construction compaction device suitable for collapsible loess geology as described in claim 1, characterized in that, The tracked walking system includes two sets of track structures, each consisting of a drive wheel, a road wheel, and tracks. The drive mechanism is connected to the drive wheel.

3. The road construction compaction device suitable for collapsible loess geology as described in claim 1, characterized in that, The water tank is equipped with a water inlet on the top.

4. The road construction compaction device suitable for collapsible loess geology as described in claim 1, characterized in that, The top of the compactor housing is equipped with a cover, and the cover has a handle.

5. The road construction compaction device suitable for collapsible loess geology as described in claim 1, characterized in that, The chassis, water tank, and compactor housing are made of 40Cr steel.

Images