CN112900203A - Road surface tamping device for highway engineering construction - Google Patents
Road surface tamping device for highway engineering construction Download PDFInfo
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- CN112900203A CN112900203A CN202110072186.1A CN202110072186A CN112900203A CN 112900203 A CN112900203 A CN 112900203A CN 202110072186 A CN202110072186 A CN 202110072186A CN 112900203 A CN112900203 A CN 112900203A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 113
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 34
- 239000003921 oil Substances 0.000 description 29
- 239000010720 hydraulic oil Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
- E01C19/38—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight with means specifically for generating vibrations, e.g. vibrating plate compactors, immersion vibrators
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The utility model belongs to the technical field of a highway engineering's technique and specifically relates to a road surface tamping device is used in highway engineering construction and specifically relates to a road surface tamping device is related to, and it includes main part and tamping piece, the tamping piece slides in the main part from top to bottom, the top that the main part is located tamping piece is provided with the pivot, is provided with the crank in the pivot, is provided with the connecting rod between crank and the main part, be provided with drive pivot pivoted drive assembly in the pivot, install the connecting plate in the main part, connecting plate swing joint is in the main part, and the connecting plate is on a parallel with the slip direction of tamping piece for the main part for the activity direction of main. The application has the advantage of improving the acting force of the tamping plate during tamping.
Description
Technical Field
The application relates to the technical field of highway engineering, in particular to a pavement tamping device for highway engineering construction.
Background
The highway engineering comprises the works of design, construction, maintenance and the like of a highway structure, and the construction quality of the highway is determined by treating the foundation in the highway construction, so that the quality of the foundation is improved by adopting tamping operation in the highway construction, and the service life of a road surface is prolonged. In the process of tamping operation of the road, machines are usually adopted for construction, so that the tamping efficiency and quality are improved.
Application publication number is CN104895041A discloses a hydraulic pressure biax vibration rammer compactor in the patent application file, including vibration mechanism and the rammer board that links to each other with vibration mechanism, vibration mechanism includes the frame and sets up the hydraulic motor in the frame, hydraulic motor's power take off end is connected with the driving gear, the driving gear suit is on the driving shaft, it is first eccentric body still to overlap on the driving shaft, the driving shaft passes through on the driving shaft holds the fixed frame, one side of driving shaft still is equipped with the driven shaft, the cover is equipped with driven gear, the eccentric body of second on the driven shaft, driven gear and driving gear meshing.
However, in the above structure, the first eccentric body installed on the driving shaft provides power for tamping the tamping plate, and the tamping force is insufficient.
Disclosure of Invention
In order to improve the effort of ramming the board when ramming, this application provides a road surface tamping device for highway engineering construction.
The application provides a road surface tamping device is used in highway engineering construction adopts following technical scheme:
the utility model provides a road surface tamping device for highway engineering construction, includes main part and tamping piece, the tamping piece slides from top to bottom in the main part, the main part is located the top of tamping piece and is provided with the pivot, is provided with the crank in the pivot, is provided with the connecting rod between crank and the main part, be provided with drive pivot pivoted drive assembly in the pivot, install the connecting plate in the main part, connecting plate swing joint is in the main part, and the connecting plate is on a parallel with the slip direction of tamping piece for the main part for the activity direction of main part.
Through adopting above-mentioned technical scheme, during the use, the main part is vertical set up and leave the clearance with between the ground, the ramming piece passes through the connecting rod and connects on the crank, the crank rotates under the drive of pivot, can tamp the road surface when ramming piece downstream, simultaneously after arriving subaerially, when the crank continues to rotate again, the main part receives the support of ramming piece and for connecting plate rebound, thereby make the ramming piece can accomplish continuous ramming operation, because the vertical motion of ramming piece and then improve the effort that the ramming piece tamped.
Preferably, the drive assembly includes first pneumatic cylinder and second pneumatic cylinder to and the hydraulic circuit of the first pneumatic cylinder of drive and the work of second pneumatic cylinder, first pneumatic cylinder one end is rotated and is connected in the main part, and the other end is rotated and is connected on the crank, second pneumatic cylinder one end is rotated and is connected in the main part, and the other end is rotated and is connected on the crank, first pneumatic cylinder and second pneumatic cylinder and articulate axis of rotation and the tie point coincidence of connecting rod on the crank, first corner is accomplished in the oblique below drive crank of pivot is installed to first pneumatic cylinder, the second corner is accomplished in the oblique top drive crank of pivot is installed to the second pneumatic cylinder, the crank rotation forms the third corner.
Through adopting above-mentioned technical scheme, first pneumatic cylinder sets up in the oblique below of pivot, and the second pneumatic cylinder sets up in the oblique top of pivot, can be when first pneumatic cylinder is elongated with the oblique top of crank rotation pivot, and the shrink of deuterogamying the second pneumatic cylinder accomplishes the second corner with the crank, and then can make the crank move in succession towards same aspect continuous motion.
Preferably, the hydraulic circuit comprises a control valve, a hydraulic pump and a sequence valve, the hydraulic pump is connected with the control valve, two paths are arranged behind the control valve, one path is connected to the second hydraulic cylinder through the sequence valve, and the other path is connected to the first hydraulic cylinder.
Through adopting above-mentioned technical scheme, set to two tunnel behind the control valve, be connected with the second pneumatic cylinder after connecting the sequence valve on one way to when the control valve is opened and is annotated first pneumatic cylinder and second pneumatic cylinder, first pneumatic cylinder is first worked, then the second pneumatic cylinder resumes work again, guarantees the precedence order of first pneumatic cylinder and second pneumatic cylinder, makes the crank rotate round same direction correctly.
Preferably, the control valve includes valve body and case, be provided with first liquid mouth, second liquid mouth, third liquid mouth and fourth liquid mouth on the valve body, first liquid mouth is connected in the hydraulic pump, and the second liquid mouth is connected in first pneumatic cylinder, third liquid mouth and is connected the second liquid mouth, the fourth liquid mouth is connected in the oil tank, the case rotates and is connected in the valve body to set up feed liquor arc groove and play liquid arc groove on the case, feed liquor arc groove is corresponding to first liquid mouth and second liquid mouth intercommunication, it is corresponding to third liquid mouth and fourth liquid mouth intercommunication to go out the liquid arc groove.
Through adopting above-mentioned technical scheme, the case rotates to be connected in the valve body, the case is when rotating, feed liquor arc groove on the case with go out the arc groove and communicate with first liquid mouth or third liquid mouth respectively at the angle that corresponds, when feed liquor arc groove and first liquid mouth and second liquid mouth intercommunication, the hydraulic pump can export first pneumatic cylinder and second pneumatic cylinder fuel feeding, when going out arc groove and third liquid mouth and fourth liquid mouth intercommunication, first pneumatic cylinder and second pneumatic cylinder arrange the oil to the oil tank in, realize cranked continuous control.
Preferably, the valve core is coaxially connected to the rotating shaft, the crank is located at a first rotating angle and a second rotating angle when the liquid inlet arc groove is communicated with the first liquid port and the second liquid port, and the crank is located at a third rotating angle when the liquid outlet arc groove is communicated with the third liquid port and the fourth liquid port.
Through adopting above-mentioned technical scheme, case coaxial coupling is in the pivot, and when the pivot rotated, the case was driven through the pivot to can guarantee the motion relation between pivot and the case more accurately.
Preferably, the end fixing of pivot is provided with the member, the member sets up and deviates from in the position at pivot center in the pivot, the tip of case is formed with the arc wall, the member is kept away from the one end in the pivot and is inserted in the arc wall, the feed liquor arc groove is formed with the overlap region with the projection of going out the arc wall along case central line direction, when the overlap region rotates the third corner end along with the crank, feed liquor arc groove and first liquid mouth intercommunication, go out arc groove and second liquid mouth intercommunication, be connected with on the case and drive the valve core and rotate the driving piece that the overlap region crossed overlap region and third liquid mouth intercommunication position to the overlap region.
Through adopting above-mentioned technical scheme, the tip of case is seted up to the arc wall, and the member cooperation has been seted up the feed liquor arc on the case and has been gone out the arc wall and form the overlap region along case central line projection, and the overlap region can make the oil feed of hydraulic pump export the oil tank, and the overlap region is the end of third corner simultaneously to can more make things convenient for the different degree of depth that the overlap region adaptation tamped the road surface.
Preferably, the driving member is a tension spring, one end of the tension spring is hung on the main body, the other end of the tension spring is provided with a pin column, the pin column is fixed at the end part of the valve core and is arranged in a manner of deviating from the central line of the valve core, and the end part of the tension spring is hung on the pin column.
By adopting the technical scheme, when the crank drives the valve core to rotate, the pin column drives the tension spring to extend, so that the tension spring is tensioned, and the valve core is driven by the tension spring to pass through the position where the overlap area is communicated with the third liquid port.
Preferably, a gap area is formed between the projection of the liquid inlet arc groove and the projection of the liquid outlet arc groove in the direction along the central line of the valve core and relative to the overlapping area, when the crank is located at a position switched from the second corner to the third corner, the gap area corresponds to the first liquid port, the second liquid port, the third liquid port and the fourth liquid port, and the tension spring is in a tension state.
By adopting the technical scheme, the gap area is arranged at the position opposite to the overlapping area, and the arrangement of the gap area can enable the first hydraulic cylinder and the second hydraulic cylinder to rotate the crank to the tail end of the second corner, so that the tamping piece is ensured to be positioned at the starting point of the third corner, and the error condition is reduced.
Preferably, the second hydraulic cylinder is connected with an oil supplementing tank, a check valve is arranged between the oil supplementing tank and the second hydraulic cylinder, and the conduction direction of the check valve is the direction from the oil supplementing tank to the second hydraulic cylinder.
Through adopting above-mentioned technical scheme, connect the oil supplementing tank on the second pneumatic cylinder, when the second pneumatic cylinder is not when not passing through the hydraulic pump oil feed, when the second pneumatic cylinder takes place to shrink, mend oil through the check valve by the oil supplementing tank, guarantee that the fluid in the second pneumatic cylinder is in and is full of the state.
Preferably, the main part is fixedly provided with a mounting seat, the mounting seat is provided with a chute, the mounting seat is detachably provided with a pressing plate, when the pressing plate is connected to the mounting seat, the pressing plate covers the chute, and the connecting plate is in sliding fit with the chute.
Through adopting above-mentioned technical scheme, set up the spout on the mount pad, the installation is from last demountable installation clamp plate, dismantles the back with the clamp plate, can change different connecting plates, makes the connecting plate install different equipment on, improves the practicality.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the main body is vertically arranged and has a gap with the ground, the tamping part is connected to the crank through the connecting rod, the crank rotates under the driving of the rotating shaft, the tamping part can tamp the road surface when moving downwards, and meanwhile, when the crank continues to rotate after reaching the ground, the main body is supported by the tamping part and moves upwards relative to the connecting plate, so that the tamping part can complete continuous tamping operation, and the tamping acting force of the tamping part is improved due to the vertical movement of the tamping part;
2. the control valve is connected with the sequence valve and then connected with the second hydraulic cylinder, so that when the control valve is opened to fill oil into the first hydraulic cylinder and the second hydraulic cylinder, the first hydraulic cylinder works first, then the second hydraulic cylinder continues to work, the sequence of the first hydraulic cylinder and the second hydraulic cylinder is ensured, and the crank rotates correctly around the same direction;
3. the end part of the valve core is arranged through the arc-shaped groove, the rod piece is matched in the arc-shaped groove, the valve core is provided with a liquid inlet arc and a liquid outlet arc groove, an overlapping area is formed along the projection of the central line of the valve core, the oil inlet of the hydraulic pump can be output to the oil tank through the overlapping area, and meanwhile, the overlapping area is the tail of the third corner, so that the different depths of the tamping piece for tamping the road surface can be more conveniently adapted to the overlapping area.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of a full-section configuration of an embodiment of the present application;
FIG. 3 is a schematic view of the construction of the connection plate mounting;
FIG. 4 is a schematic diagram of the hydraulic circuit;
FIG. 5 is a schematic diagram of the control valve;
FIG. 6 is a first schematic diagram of the motion states of the crank, the valve core and the tension spring;
FIG. 7 is a second schematic diagram of the motion states of the crank, the valve core and the tension spring;
FIG. 8 is a third schematic view showing the motion states of the crank, the valve core and the tension spring;
fig. 9 is a fourth schematic view showing the motion states of the crank, the valve core and the tension spring.
Description of reference numerals: A. a first corner; B. a second corner; C. a third corner; 1. a main body; 2. compacting the part; 3. a connecting plate; 31. a mounting seat; 32. a chute; 33. pressing a plate; 4. a rotating shaft; 41. a crank; 42. a connecting rod; 5. a drive assembly; 51. a first hydraulic cylinder; 52. a second hydraulic cylinder; 6. a hydraulic circuit; 61. a control valve; 611. a valve body; 612. a valve core; 613. a first fluid port; 614. a second fluid port; 615. a third fluid port; 616. a fourth fluid port; 617. an arc groove for liquid inlet; 618. discharging an arc groove; 62. a hydraulic pump; 63. a sequence valve; 64. an oil tank; 65. an oil supplementing tank; 7. a rod member; 71. an arc-shaped slot; 81. an overlap region; 82. a gap region; 9. a tension spring; 91. and (4) a pin.
Detailed Description
The present application is described in further detail below with reference to figures 1-9.
The embodiment of the application discloses road surface tamping device for highway engineering construction, refer to fig. 1, including main part 1, main part 1 is the structure of cross section for the square frame shape, main part 1 is vertical to be placed, lower extreme cooperation at main part 1 sets up tamping member 2, tamping member 2 is on main part 1 along the length direction sliding connection of main part 1, be provided with connecting plate 3 on the main part 1, connecting plate 3 is used for connecting on loader or excavator, stick up main part 1 or tilt slightly use during the use, the interval sets up between main part 1 and the road surface, tamping member 2 slides from last downwards and tamps ground. Be connected with pivot 4 on main part 1, pivot 4 rotates and installs on main part 1, and the central line of pivot 4 is perpendicular to the length direction of main part 1, be connected with crank 41 on pivot 4, the one end of crank 41 is fixed on pivot 4, the other end rotates and connects on connecting rod 42, connecting rod 42 one end rotates with crank 41 to be connected, the other end rotates and connects on tamping member 2, in use, pivot 4 is located the top of tamping member 2, when pivot 4 rotates, pivot 4 drives crank 41 and rotates, crank 41 drives main part 1 through connecting rod 42 and upwards moves and break away from ground, when crank 41 rotates to can pass through the gravity downstream of tamping member 2, crank 41 rotates under the effect of tamping member 2, and tamping member 2 accomplishes a circulation tamping operation.
Referring to fig. 2, a driving assembly 5 is connected to the crank 41, the driving assembly 5 includes a first hydraulic cylinder 51 and a second hydraulic cylinder 52, one end of the first hydraulic cylinder 51 is rotatably connected to the main body 1, the other end is rotatably connected to the crank 41, the rotation connecting axis of the first hydraulic cylinder 51 and the crank 41 coincides with the rotation connecting axis of the crank 41 and the connecting rod 42, one end of the second hydraulic cylinder 52 is rotatably connected to the main body 1, the other end is rotatably connected to the crank 41, the rotation axis of the second hydraulic cylinder 52 and the crank 41 coincides with the rotation axis of the crank 41 and the connecting rod 42, the first hydraulic cylinder 51 is installed at an oblique lower side of the rotating shaft 4, when the tamping member 2 finishes one tamping operation and stops on the road surface, the first hydraulic cylinder 51 is operated, the first hydraulic cylinder 51 is extended, when the length of the first hydraulic cylinder 51 reaches a maximum length, the rotation axis of the crank 41 and the connecting rod 42 is at an oblique upper, the angle at which the first hydraulic cylinder 51 pushes the crank 41 to complete rotation is the first rotation angle a. When the first hydraulic cylinder 51 stops extending, the second hydraulic cylinder 52 starts to operate, the position where the second hydraulic cylinder 52 is connected with the main body 1 is located obliquely above the rotating shaft 4 and is located on the same side of the first hydraulic cylinder 51 in the vertical direction of the rotating shaft 4, so that when the second hydraulic cylinder 52 contracts, the second hydraulic cylinder 52 with the crank 41 rotates continuously in the same direction as the crank 41 rotates in the first rotating angle a, when the second hydraulic cylinder 52 reaches the shortest length, the second hydraulic cylinder 52 with the crank 41 rotates obliquely above the rotating shaft 4 and is located on the same side of the rotating shaft 4 as the position where the first hydraulic cylinder 51 and the second hydraulic cylinder 52 are connected with the main body 1, so that when the first hydraulic cylinder 51 and the second hydraulic cylinder 52 lose hydraulic power at the same time, the crank 41 rotates automatically by the gravity of the tamping member 2, and when the second hydraulic cylinder 52 operates, the rotating angle of the crank 41 is the second rotating angle B, the angle of the tamping part 2 driving the crank 41 to rotate under the action of gravity is a third rotation angle C, the rotation direction of the crank 41 in the range of the third rotation angle C is the same as the rotation direction of the crank 41 in the second rotation angle B, the sum of the first rotation angle A, the second rotation angle B and the third rotation angle C is 360 degrees, the first rotation angle A, the second rotation angle B and the third rotation angle C are completed by the crank 41 once, circulation is performed, and the tamping part 2 completes tamping operation once.
Referring to fig. 3, when the crank 41 starts to rotate by a first rotation angle a, the main body 1 needs to move upward, so that the connection point of the connecting rod 42 and the tamping member 2 passes through the lowest point of the rotation of the crank 41, thereby providing the mounting seat 31 on the main body 1, the mounting seat 31 is fixed on one side wall of the main body 1, two and opposite mounting seats 31 are provided, the mounting seat 31 is provided with a chute 32, one side of the chute 32 facing away from the main body 1 is provided with an opening, the mounting seat 31 is fixedly provided with a pressing plate 33 through bolts, when mounting, two sides of the connecting plate 3 are placed in the chute 32, the thickness of the connecting plate 3 is equal to the depth of the chute 32, then the pressing plate 33 is covered on the mounting seat 31, the pressing plate 33 blocks the opening of the chute 32 facing away from the side of the main body 1, so that the connecting plate 3 can be slidably fitted in the chute 32, and the relative sliding direction of the connecting plate 3 and the, and the loader or the excavator that can install as required sets up on the connecting plate 3, makes the connecting plate 3 change the back, and main part 1 can use under the multiple operating mode.
Referring to fig. 4 and 5, a hydraulic circuit 6 is connected to the first hydraulic cylinder 51 and the second hydraulic cylinder 52, the hydraulic circuit 6 includes a control valve 61, a hydraulic pump 62, and a sequence valve 63, the control valve 61 includes a valve body 611 and a valve core 612, the valve core 612 is rotatably connected in the valve body 611, the valve core 612 is connected to the rotating shaft 4, or the valve core 612 can be connected by a servo motor or a stepping motor, and drives the valve core 612 to rotate in the valve body 611. The valve body 611 is provided with a first fluid port 613, a second fluid port 614, a third fluid port 615 and a fourth fluid port 616, and the first fluid port 613, the second fluid port 614, the third fluid port 615 and the fourth fluid port 616 are positioned on the same straight line parallel to the length direction of the valve core 612. The outer peripheral wall of the valve core 612 is provided with a liquid inlet arc groove 617 and a liquid outlet arc groove 618, the angles of the liquid inlet arc groove 617 and the liquid outlet arc groove 618 on the outer peripheral wall of the valve core 612 are both smaller than 360 degrees, the first liquid port 613 and the second liquid port 614 correspond to the liquid inlet arc groove 617, the third liquid port 615 and the fourth liquid port 616 correspond to the liquid outlet arc groove 618, and when the valve core 612 rotates, the rotation angle of the valve core 612 is formed by the first liquid port 613 and the second liquid port 614 which are communicated through the liquid inlet arc groove 617, and the rotation angle of the valve core 612 is formed by the third liquid port 615 and the fourth liquid port 616 which are communicated through the liquid outlet arc groove 618. The first port 613 is connected to an outlet of the hydraulic pump 62, and a relief valve may be provided between the first port 613 and the hydraulic pump 62 to ensure continuous operation of the hydraulic pump 62. The second port 614 is connected to the first hydraulic cylinder 51, the second port 614 is divided into a single connection sequence valve 63, the sequence valve 63 is connected to the second hydraulic cylinder 52, the first hydraulic cylinder 51 and the second hydraulic cylinder 52 are both single-acting hydraulic cylinders, when the first hydraulic cylinder 51 applies pressure to the hydraulic oil, the first hydraulic cylinder 51 extends, and when the second hydraulic cylinder 52 applies pressure to the hydraulic oil, the second hydraulic cylinder 52 extends, and the sequence valve 63 mounted on the second hydraulic cylinder 52 allows the first hydraulic cylinder 51 to operate first to reach the maximum length of the first hydraulic cylinder 51, and the second hydraulic cylinder 52 to operate again, thereby allowing the second hydraulic cylinder 52 to retract. The third port 615 is connected to the second port 614, a check valve is disposed in a position parallel to the sequence valve 63, a flow direction of the check valve is from the second hydraulic cylinder 52 to the control valve 61, the fourth port 616 is connected to the oil tank 64, when the first hydraulic cylinder 51 and the second hydraulic cylinder 52 are not in operation, the crank 41 rotates simultaneously, and in a process of compressing the first hydraulic cylinder 51 and extending the second hydraulic cylinder 52, hydraulic oil in the first hydraulic cylinder 51 and the second hydraulic cylinder 52 can enter the fourth port 616 from the third port 615 and the liquid arc outlet groove 618, so as to flow into the oil tank 64. In order to keep the hydraulic oil in the first hydraulic cylinder 51 and the second hydraulic cylinder 52 full, a tank 65 is connected to the second hydraulic cylinder 52, a check valve is also provided between the tank 65 and the second hydraulic cylinder 52, and the opening direction of the check valve is the direction from the tank 65 to the second hydraulic cylinder 52, and when the second hydraulic cylinder 52 receives an external force to shorten the length of the second hydraulic cylinder 52, the hydraulic oil enters the second hydraulic cylinder 52 through the tank 65 by opening the check valve.
Referring to fig. 5, two arc-shaped grooves 71 are formed in an end surface of the valve core 612, a center of an arc of the arc-shaped grooves 71 coincides with a rotation axis of the valve core 612 on the valve body 611, one or more rod members 7 are fixedly disposed at an end portion of the rotation shaft 4, one end of each rod member 7 is fixed to the rotation shaft 4, the other end of each rod member 7 faces the valve core 612 and is inserted into the arc-shaped groove 71, the rod members 7 can move along an arc of the arc-shaped grooves 71 in the arc-shaped grooves 71, and the two rod members 7 are fixed at positions deviated from a center of the rotation shaft 4, so that the valve core 612.
Referring to fig. 5 and 6, an overlap area 81 and a clearance area 82 are formed on the projection of the liquid inlet arc groove 617 and the liquid outlet arc groove 618 along the central line direction of the valve core 612, the overlap area 81 is opposite to the clearance area 82, when the crank 41 rotates to the end of the third rotation angle C, the overlap area 81 corresponds to the positions of the first liquid port 613, the second liquid port 614, the third liquid port 615 and the fourth liquid port 616 arranged on the valve body 611, so that the first liquid port 613, the second liquid port 614 and the liquid inlet arc groove 617 are communicated, the third liquid port 615, the fourth liquid port 616 and the liquid outlet arc groove 618 are communicated, and the second liquid port 614 and the third liquid port 615 are also connected, so that pressure oil generated by the operation of the hydraulic pump 62 flows into the oil tank 64 through the first liquid port 613, the liquid inlet arc groove 617, the second liquid port 614, the third liquid port 615, the liquid outlet arc groove 618 and the fourth liquid port 616.
Referring to fig. 5 and 6, a tension spring 9 is connected to the valve core 612, a pin 91 is provided at one end of the tension spring 9, the pin 91 is fixed to an end of the valve core 612, and the pin 91 is offset from the center line of the valve core 612, so that the pin 91 is not coincident with the center line of the valve core 612, one end of the tension spring 9 is hung on the pin 91, the other end is hung on the main body 1, the pulling force of the tension spring 9 acts on the pin 91 to rotate the valve core 612, the overlapping area 81 on the valve core 612 continues to rotate and goes beyond the position where the overlapping area 81 is communicated with the third liquid port 615, so that only the inlet arc groove 617 of the valve core 612 is communicated with the first liquid port 613 and the second liquid port 614, so that the pressure oil generated by hydraulic pump 62 is introduced into first hydraulic cylinder 51 and second hydraulic cylinder 52, the crank 41 further completes the rotation of the first rotation angle a and the second rotation angle B under the action of the first hydraulic cylinder 51 and the second hydraulic cylinder 52; when the first hydraulic cylinder 51 and the second hydraulic cylinder 52 drive the crank 41 to rotate, the rotating shaft 4 drives the valve core 612 to rotate, so that the length of the tension spring 9 is gradually increased, when the crank 41 is at a position switched from the second rotating angle B to the third rotating angle C, the gap area 82 corresponds to the first fluid port 613, the second fluid port 614, the third fluid port 615 and the fourth fluid port 616, the length of the tension spring 9 is longest, the valve core 612 continues to rotate under the action of the tension spring 9, the gap area 82 on the valve core 612 passes through the position corresponding to the third fluid port 615, and the third fluid port 615 corresponds to the fluid outlet groove 618, so that the crank 41 rotates under the action of the gravity of the tamping piece 2, and a part of hydraulic oil in the first hydraulic cylinder 51 and the second hydraulic cylinder 52 is discharged.
The working process of the embodiment:
1. the tamping member 2 is completely fallen on the road surface, the overlapping area 81 passes through the position of the third fluid port 615 by the action of the tension spring 9, the first fluid port 613 and the second fluid port 614 are both connected with the fluid inlet arc groove 617, the pressure fluid in the hydraulic pump 62 is input into the first hydraulic cylinder 51 through the second fluid port 614, the first hydraulic cylinder 51 extends, the first hydraulic cylinder 51 pushes the crank 41 to rotate, the second hydraulic cylinder 52 discharges a part of hydraulic fluid in the process of rotating along with the crank 41 and enters the first hydraulic cylinder 51 along with the hydraulic fluid output by the hydraulic pump 62, after the crank 41 passes through the longest position of the second hydraulic cylinder 52, the second hydraulic cylinder 52 is shortened, oil is supplemented into the second hydraulic cylinder 52 through the check valve by the oil supplementing tank 65 until the acting force of the first hydraulic cylinder 51 on the pressure oil reaches the longest position, the crank 41 completes the movement of a first rotation angle A, and the valve core 612 synchronously rotates along with the rotating shaft 4;
2. after the first hydraulic cylinder 51 extends to the longest position, the sequence valve 63 is opened, the hydraulic oil output by the hydraulic pump 62 enters the second hydraulic cylinder 52, so that the second hydraulic cylinder 52 contracts, the first hydraulic cylinder 51 contracts under the action of the rotation of the crank 41, the hydraulic oil discharged from the first hydraulic cylinder 51 enters the second hydraulic cylinder 52 along with the pressure oil output by the hydraulic pump 62, then the crank 41 completes the movement of a second rotation angle, and at the moment, the rotating shaft 4 drives the valve core 612 to rotate, so that the tension spring 9 connected to the valve core 612 is in the longest position; meanwhile, the valve core 612 rotates to the position where the clearance area 82 corresponds to the third liquid port 615 along with the rotating shaft 4, and hydraulic oil can be discharged through the arranged overflow valve;
3. referring to fig. 6 and 7, the valve core 612 is rotated by the force of the tension spring 9, and the rotation direction of the valve core 612 drives the clearance area 82 to pass through the third fluid port 615, so that the third fluid port 615 is communicated with the fluid outlet arc groove 618, so that the third fluid port 615 is communicated with the oil tank 64 through the fluid outlet arc groove 618, the crank 41 rotates under the gravity of the tamping member 2, the first hydraulic cylinder 51 contracts to discharge hydraulic oil to the oil tank 64, the second hydraulic cylinder 52 extends to discharge hydraulic oil to the oil tank 64, so that the tamping member 2 can tamp the ground, the rotation of the crank 41 at the third rotation angle C is completed, at this time, the valve core 612 rotates along with the rotation of the crank 41, and the overlapping area 81 on the valve core 612 reaches the position of the third fluid port 615;
4. referring to fig. 8 and 9, the force of the tension spring 9 rotates the spool 612 to move the overlap region 81 beyond the position of the third port 615, completing a cycle of tamping.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a road surface tamping device is used in highway engineering construction which characterized in that: including main part (1) and rammed piece (2), the rammed piece (2) slides on main part (1) from top to bottom, the top that main part (1) is located rammed piece (2) is provided with pivot (4), is provided with crank (41) on pivot (4), is provided with connecting rod (42) between crank (41) and main part (1), be provided with drive pivot (4) pivoted drive assembly (5) on pivot (4), install connecting plate (3) on main part (1), connecting plate (3) swing joint is on main part (1), and connecting plate (3) are on a parallel with the slip direction of rammed piece (2) for main part (1) for the direction of activity of main part (1).
2. The road surface tamping device for road engineering construction according to claim 1, wherein: the driving assembly (5) comprises a first hydraulic cylinder (51), a second hydraulic cylinder (52) and a hydraulic circuit (6) for driving the first hydraulic cylinder (51) and the second hydraulic cylinder (52) to work, one end of the first hydraulic cylinder (51) is rotatably connected to the main body (1), the other end of the first hydraulic cylinder (51) is rotatably connected to the crank (41), one end of the second hydraulic cylinder (52) is rotatably connected to the main body (1), the other end of the second hydraulic cylinder is rotatably connected to the crank (41), the rotating axes of the first hydraulic cylinder (51) and the second hydraulic cylinder (52) and the crank (41) are superposed with the connecting point of the connecting rod (42) on the crank (41), the first hydraulic cylinder (51) is arranged below the rotating shaft (4) and drives the crank (41) to complete a first rotating angle (A), the second hydraulic cylinder (52) is arranged above the rotating shaft (4) and drives the crank (41) to complete a second rotating angle (B), the crank (41) rotates by itself to form a third rotation angle (C).
3. The road surface tamping device for road engineering construction according to claim 2, wherein: the hydraulic circuit (6) comprises a control valve (61), a hydraulic pump (62) and a sequence valve (63), wherein the hydraulic pump (62) is connected with the control valve (61), two paths are arranged behind the control valve (61), one path is connected to the second hydraulic cylinder (52) through the sequence valve (63), and the other path is connected to the first hydraulic cylinder (51).
4. The road surface tamping device for road engineering construction according to claim 3, wherein: the control valve (61) comprises a valve body (611) and a valve core (612), wherein a first liquid port (613), a second liquid port (614), a third liquid port (615) and a fourth liquid port (616) are formed in the valve body (611), the first liquid port (613) is connected to the hydraulic pump (62), the second liquid port (614) is connected to the first hydraulic cylinder (51), the third liquid port (615) is connected to the second liquid port (614), the fourth liquid port (616) is connected to the oil tank (64), the valve core (612) is rotatably connected to the valve body (611), a liquid inlet arc groove (617) and a liquid outlet arc groove (618) are formed in the valve core (612), the liquid inlet arc groove (617) is communicated with the second liquid port (613) correspondingly, and the liquid outlet arc groove (618) is communicated with the fourth liquid port (616) correspondingly.
5. The road surface tamping device for road engineering construction according to claim 4, wherein: the valve core (612) is coaxially connected to the rotating shaft (4), when the liquid inlet arc groove (617) is communicated with the first liquid port (613) and the second liquid port (614), the crank (41) is in a first rotating angle (A) and a second rotating angle (B), and when the liquid outlet arc groove (618) is communicated with the third liquid port (615) and the fourth liquid port (616), the crank (41) is in a third rotating angle (C).
6. The road surface tamping device for road engineering construction according to claim 5, wherein: a rod piece (7) is fixedly arranged at the end part of the rotating shaft (4), the rod piece (7) is arranged on the rotating shaft (4) and deviates from the center of the rotating shaft (4), an arc-shaped groove (71) is formed at the end part of the valve core (612), one end of the rod piece (7) far away from the rotating shaft (4) is inserted in the arc-shaped groove (71), the liquid inlet arc groove (617) and the liquid outlet arc groove (618) form an overlapping area (81) in the projection along the central line direction of the valve core (612), when the overlap region (81) is rotated with the crank (41) to the end of the third rotation angle (C), the liquid inlet arc groove (617) is communicated with the first liquid port (613), the liquid outlet arc groove (618) is communicated with the second liquid port (614), and a driving piece for driving the valve core (612) to rotate to a position where the overlapping area (81) crosses the overlapping area (81) and is communicated with the third liquid port (615) is connected to the valve core (612).
7. The road surface tamping device for road engineering construction according to claim 6, wherein: the driving piece is a tension spring (9), one end of the tension spring (9) is hung on the main body (1), the other end of the tension spring is provided with a pin column (91), the pin column (91) is fixed at the end of the valve core (612) and is arranged in a mode of deviating from the central line of the valve core (612), and the end of the tension spring (9) is hung on the pin column (91).
8. The road surface tamping device for road construction according to claim 7, wherein: and when the crank (41) is at a position switched from the second corner (B) to the third corner (C) outside the crank (41), the clearance area (82) corresponds to the first liquid port (613), the second liquid port (614), the third liquid port (615) and the fourth liquid port (616), and the tension spring (9) is in a tension state.
9. The road surface tamping device for road engineering construction according to claim 8, wherein: an oil supplementing tank (65) is connected to the second hydraulic cylinder (52), a one-way valve is arranged between the oil supplementing tank (65) and the second hydraulic cylinder (52), and the conduction direction of the one-way valve is the direction from the oil supplementing tank (65) to the second hydraulic cylinder (52).
10. The road surface tamping device for road construction according to any one of claims 1 to 9, wherein: the fixing device is characterized in that a mounting seat (31) is fixedly arranged on the main body (1), a sliding groove (32) is formed in the mounting seat (31), a pressing plate (33) is detachably mounted on the mounting seat (31), when the pressing plate (33) is connected to the mounting seat (31), the pressing plate (33) covers the sliding groove (32), and the connecting plate (3) is in sliding fit in the sliding groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110072186.1A CN112900203A (en) | 2021-01-20 | 2021-01-20 | Road surface tamping device for highway engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110072186.1A CN112900203A (en) | 2021-01-20 | 2021-01-20 | Road surface tamping device for highway engineering construction |
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| Publication Number | Publication Date |
|---|---|
| CN112900203A true CN112900203A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110072186.1A Pending CN112900203A (en) | 2021-01-20 | 2021-01-20 | Road surface tamping device for highway engineering construction |
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| Country | Link |
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| CN (1) | CN112900203A (en) |
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Application publication date: 20210604 |