Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a box culvert jacking elevation control system which can automatically control the soil accumulation amount at the front end of a box culvert and adjust the levelness of the box culvert.
In order to achieve the above object, the present invention provides the following technical solutions:
The utility model provides a box culvert jacking elevation control system, its includes box culvert levelness measuring device, wireless communication unit, control unit and a plurality of elevation control auxiliary, elevation control auxiliary includes the shovel body, shovel head, hydraulic control system and locates the shovel body and shovel distance sensor between the head, the shovel body includes the riser, be equipped with the connecting hole on the riser, the shovel head sets up the front end at the shovel body with articulated mode, the front end of shovel head is equipped with a plurality of forming teeth, be equipped with the jack that is used for adjusting shovel head pitch angle between shovel head and the shovel body, the jack with hydraulic control system connects, the cylinder body of jack is fixed on the shovel body, the top of jack with the shovel head is connected, box culvert levelness measuring device includes a liquid storage pot and at least three measuring body that constitutes the fluid coupling structure each other, all is equipped with a hydraulic sensor in every measuring body, hydraulic control system, distance sensor, wireless communication unit and sensor all with hydraulic control unit connect.
Optionally, the main part of the shovel body and shovel head is angle steel structure, and all is equipped with the strengthening rib between the both sides of angle steel, the riser of the shovel body is angle steel structure's vertical limit promptly, and two angle steel structures are parallel to each other and the opening direction is the same, the relief tooth sets up on the bottom edge of shovel head angle steel.
Optionally, the two sides of the angle steel structure used as the shovel body main body form an included angle of 82-88 degrees.
Optionally, the tooth surface of the relieved tooth is a slope surface of 55-65 degrees.
Optionally, the shovel head with the shovel body is isometric, and the jack in every elevation control auxiliary member is total to be two and for shovel body length direction's middleface symmetry setting, all be equipped with the dust cover outward the jack.
Optionally, box culvert levelness measuring device is closed structure, the top of liquid storage pot and measuring body is through gas piping intercommunication, the bottom of liquid storage pot and measuring body is through liquid piping intercommunication, hydraulic sensor locates the bottom of measuring body.
From the above description, the technical scheme of the invention has the following beneficial effects:
1. The invention has simple structure, lower cost and easy realization.
2. The invention can adjust the soil accumulation amount at the front end of the box culvert by adjusting the inclination angle of the shovel head, and can compact the soil accumulation below the shovel head by pressing down the shovel head. Through the soil-packing mode, the movement trend of the box culvert in the vertical direction can be adjusted, the jacking problem caused by sinking of the front end is avoided, and the box culvert is maintained in a good horizontal state.
3. The invention can realize automatic control by programming proper programs. Specifically, the box culvert levelness measuring device can sense the level state of the box culvert, the distance sensor can sense the inclination degree of the shovel head, the control unit can control the expansion and contraction of the jack in each elevation control auxiliary, change the inclination angle of the shovel head in each elevation control auxiliary, and adjust the soil accumulation amount at each elevation control auxiliary at the front end of the box culvert, so that the levelness of the whole box culvert is adjusted.
Detailed Description
In order to facilitate understanding of the technical solution of the present patent by those skilled in the art, the technical solution of the present patent is further described below in the form of specific cases.
The box culvert jacking elevation control system is applied to a box culvert 1 to be jacked, and comprises a box culvert levelness measuring device, a wireless communication unit, a control unit and a plurality of elevation control auxiliary parts 2 (only positions are shown in fig. 1, and specific structures are not shown), wherein the use state diagram of the box culvert jacking elevation control system is shown in fig. 1.
In the box culvert jacking elevation control system, the box culvert levelness measuring device comprises a liquid storage tank 32 and at least three measuring bodies 31 which form a communicating vessel structure, and a hydraulic sensor is arranged in each measuring body 31.
In the box culvert jacking elevation control system, the structure of each elevation control auxiliary is shown in fig. 2-5, each elevation control auxiliary comprises a shovel body 21, a shovel head 22, a hydraulic control system (located in a dust cover 25 and not shown) and a distance sensor 26 arranged between the shovel body 21 and the shovel head 22, the shovel body 21 comprises a vertical plate 211, a connecting hole 2110 is formed in the vertical plate 211, the shovel head 22 is arranged at the front end of the shovel body 21 in a hinged manner (the hinged manner is realized through a hinged structure 20 in the drawing), a plurality of shovel teeth 221 are arranged at the front end of the shovel head 22, a jack 23 for adjusting the pitching angle of the shovel head is arranged between the shovel head 22 and the shovel body 21, the jack 23 is connected with the hydraulic control system, a cylinder body of the jack 23 is fixed on the shovel body 21, and the top of the jack 23 is connected with the shovel head 22.
When the shovel head 2 performs pitching motion, the connection point of the jack top and the shovel head 2 inevitably rotates relative to the connection point of the jack cylinder body and the shovel body, and for this purpose, the connection modes of the jack, the shovel body and the shovel head are all designed to be hinged.
In the box culvert jacking elevation control system, the hydraulic control system, the distance sensor, the wireless communication unit and the hydraulic sensor are all connected with the control unit, and a schematic diagram of the whole control system is shown in fig. 7.
Optionally, the main part of the shovel body and shovel head is angle steel structure, and all is equipped with the strengthening rib between the both sides of the shovel body angle steel and between the both sides of shovel head angle steel, the riser of the shovel body is angle steel structure's vertical limit promptly, and two angle steel structures are parallel to each other and the opening direction is the same, the shovel tooth sets up on the bottom edge of shovel head angle steel.
Optionally, the two sides of the angle steel structure used as the shovel body main body form an included angle of 82-88 degrees. The included angle is smaller than 90 degrees, which is to reserve a soil-pad space below the shovel body.
Optionally, the tooth surface of the relieved tooth is a slope surface of 55-65 degrees.
Optionally, the shovel head is equal to the shovel body (i.e. equal to the shovel body in the transverse direction in fig. 3), and the jack in each elevation control auxiliary member is two in total and symmetrically arranged relative to the middle vertical plane of the shovel body in the length direction, and the outer part of the jack is provided with a dust cover 24.
Optionally, as shown in fig. 6, the box culvert levelness measuring device is of a closed structure, the top ends of the liquid storage tank and the measuring body are communicated through a gas pipeline, the bottom ends of the liquid storage tank and the measuring body are communicated through a liquid pipeline, and the hydraulic sensor is arranged at the bottom of the measuring body.
When the system is used, the measuring bodies of the box culvert levelness measuring device are arranged at four corners of the box culvert, meanwhile, the liquid storage tank is fixed at the position higher than the measuring bodies on the box culvert, according to the communicating vessel principle, liquid in the liquid storage tank can be distributed into each measuring body, and the hydraulic sensors in each measuring body can generate readings; in addition, the elevation control auxiliary in the system is arranged at the jacking front end of the box culvert, and screws penetrate through the connecting holes of the auxiliary to firmly fix the auxiliary and the box culvert, so that the relation between the auxiliary and the box culvert can be analogous to the relation between the bulldozer push shovel and the bulldozer body.
In the box culvert jacking process, if the reading of the hydraulic sensor changes, the deviation direction of the box culvert relative to the horizontal plane can be analyzed according to the position of the sensor and the reading change of the hydraulic sensor, the deviation direction is sent to a control person, the control person can send an instruction to a control unit, the telescopic quantity of a jack is controlled through a hydraulic control system of a corresponding auxiliary, the inclination angle of the shovel head of the auxiliary is adjusted, the soil accumulation quantity at the front end of the box culvert is adjusted, the effect of changing the movement trend of the box culvert in the vertical direction is achieved, and the deviation of the whole levelness of the box culvert is corrected.
Specifically, the control program may be designed as follows:
(1) For each accessory, a corresponding relation between the sensing signal of the distance sensor and the inclination angle of the shovel head is built in the memory in advance.
(2) The reading of each hydraulic sensor is read in real time, the inclination state (for example, four inclination states of forward inclination, backward inclination, left inclination and right inclination) of the box culvert is judged according to the reading change of the hydraulic sensor, and the inclination state is sent to an operator through a wireless communication unit (the control end can adopt a common computer, and the wireless communication unit can be a wifi or Bluetooth module).
(3) And receiving control signals sent by operators in real time, wherein the control signals are used for specifying the dip angles of shovel heads of corresponding auxiliary parts. For the control end, if the left side of the box culvert is lower, the shovel head of the left auxiliary part can be tilted, so that the soil padding amount at the left side is increased; if the right side of the box culvert is lower, the shovel head of the right side auxiliary part can be tilted, so that the soil filling amount on the right side is increased; if the front of the box culvert is lower, the shovel heads of the auxiliary parts on the left side and the right side can be tilted at the same time, so that the soil padding amount in front of the box culvert is increased; if the front of the box culvert is higher, the shovel heads of the left and right auxiliary parts can be simultaneously pressed down, so that the soil-packing quantity in front of the box culvert is reduced (at the moment, the shovel heads take the effect of shoveling soil).
(4) Judging the position relation between the current inclination angle of the shovel head and the inclination angle signal to be reached by reading the corresponding relation;
(5) According to the position relation, controlling the jack to extend, shorten or maintain the original state, and adjusting the dip angle of the shovel head; and (2) simultaneously, reading the sensing signal of the distance sensor in real time, judging the real-time inclination angle of the shovel head according to the corresponding relation in the step (1), and stopping the expansion and contraction of the jack when the inclination angle of the shovel head is consistent with the inclination angle to be reached by the inclination angle signal.
In a word, the system can monitor the inclination state of the box culvert in real time and can receive control signals of operators, so that the levelness of the box culvert is controlled, and the box culvert is maintained in a good horizontal state. The system has novel conception and ingenious design, provides a simple and efficient soil-filling mode, and is a great improvement on the prior art.
It should be noted that the above specific embodiments are only specific examples of the implementation of the present patent, and do not and cannot cover all the implementations of the present patent, and therefore should not be considered as limiting the protection scope of the present patent; all the implementation schemes belonging to the same conception with the above cases or the combination scheme of the above schemes are within the protection scope of the patent.