CN106801374B - Ironing system for paver - Google Patents
Ironing system for paver Download PDFInfo
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- CN106801374B CN106801374B CN201710029269.6A CN201710029269A CN106801374B CN 106801374 B CN106801374 B CN 106801374B CN 201710029269 A CN201710029269 A CN 201710029269A CN 106801374 B CN106801374 B CN 106801374B
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- ironing
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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
- E01C19/12—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 distributing granular or liquid materials
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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
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/14—Extendable screeds
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The present disclosure is directed to an ironing system for a paving machine. The ironing system comprises a plurality of ironing units and a plurality of arch adjusting units, wherein the ironing units are arranged side by side, each ironing unit comprises an ironing main body and an ironing board connected below the ironing main body, all the ironing boards form the ironing board of the ironing system integrally, and the ironing main bodies of every two adjacent ironing units are hinged; every two adjacent ironing units are correspondingly provided with an arch adjusting unit, and the arch adjusting units drive the two adjacent ironing units to rotate around the hinged joint of the ironing units, so that the radian of the ironing board is changed by changing the included angle between the two adjacent ironing boards. The ironing system can be used for paving curved roads.
Description
Technical Field
The present disclosure is directed to an ironing system for a paving machine.
Background
The high-speed loop is a circulating runway specially used for automobiles to carry out continuous high-speed running tests in an automobile test field, the geometric design of the high-speed loop is different from that of a common road, particularly the curve part of the high-speed loop, and a basin-cavity type space three-dimensional curved surface is actually required to be formed. The basin-cavity type curved surface has complicated line shape, and the special characteristics of the high-ring curve road surface make the conventional paver unable to meet the requirements of curved surface paving operation, so that only special paver can be used. In the walking process of the paver, the curved surface shape of the screed plate needs to be adjusted according to the different curved surface shapes of each section of the road surface so as to pave the road surface with the preset curved shape, and the paved road surface needs to be flat. There is a need for a screed system for a paving machine that has the capability of adjusting the arc of the screed. However, the existing paver cannot effectively adjust the radian of the screed so as to pave a curved road.
Disclosure of Invention
Technical problem to be solved
In order to solve the above problems of the prior art, the present invention provides an ironing system for a paving machine, which is capable of paving a curved road.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the invention provides an ironing system for a paver, comprising: a plurality of ironing units arranged side by side, each ironing unit comprising an ironing body and an ironing board connected below the ironing body, all the ironing boards integrally forming an ironing board of the ironing system, and the ironing bodies of every two adjacent ironing units being hinged; and each two adjacent ironing units are correspondingly provided with an arch adjusting unit, and the arch adjusting units drive the two adjacent ironing units to rotate around the hinged position of the two ironing units so as to change the radian of the ironing plate by changing the included angle between the two adjacent ironing sub-plates.
According to the present invention, an arch adjusting unit includes: mounting a plate; a motor fixed on the mounting plate; the driving wheel is fixedly connected with a rotating shaft of the motor; the driven wheel is rotatably fixed on the mounting plate and driven by the driving wheel to rotate, an inner hole is formed in the driven wheel, and two sections of internal threads are formed in the inner wall of the inner hole; the thread ends of the left external thread rod end joint bearing and the right external thread rod end joint bearing are respectively in threaded connection with the two sections of internal threads in the inner hole; the bottom ends of the left mounting seat and the right mounting seat are respectively and fixedly connected with two adjacent ironing boards, a through hole corresponding to the inner ring of the left external thread rod end oscillating bearing is formed in the left mounting seat, and a through hole corresponding to the inner ring of the right external thread rod end oscillating bearing is formed in the right mounting seat; the left fixing pin is arranged in the through hole of the left mounting seat and the inner ring of the left external thread rod end oscillating bearing in a penetrating mode, and the right fixing pin is arranged in the through hole of the right mounting seat and the inner ring of the right external thread rod end oscillating bearing in a penetrating mode; the two sections of internal threads in the inner hole have opposite turning directions, and the turning directions of the threads at the thread ends of the left external thread rod end oscillating bearing and the right external thread rod end oscillating bearing are the same, or the turning directions of the two sections of internal threads in the inner hole are the same, and the turning directions of the threads at the thread ends of the left external thread rod end oscillating bearing and the right external thread rod end oscillating bearing are opposite.
According to the invention, the arch adjusting unit comprises a distance sensor for measuring the distance between the left fixing pin and the right fixing pin, and the distance sensor and the motor can be in communication connection with a central control device of the paver.
According to the invention, the arch adjusting unit further comprises: the end of the left fixing pin, which is far away from the left mounting seat, is rotatably connected with the left guide seat, and the end of the right fixing pin, which is far away from the right mounting seat, is rotatably connected with the right guide seat; the left guide seat and the right guide seat are slidably sleeved on the guide rod; the travel switch is arranged on one of the left guide seat and the right guide seat; and the stop block is arranged on the other one of the left guide seat and the right guide seat and corresponds to the travel switch.
According to the invention, it also comprises: the upper part of the ironing main body of the ironing unit on the leftmost side is hinged with the upper frame, the upper part of the ironing main body of the ironing unit on the rightmost side is hinged with the lower part of a connecting plate connected with the upper frame, and the upper part of the connecting plate is hinged with the upper frame.
According to the invention, the driving wheel and the driven wheel are in chain transmission; the diameter of the driving wheel is smaller than that of the driven wheel.
According to the invention, two driven wheels are arranged below the driving wheel to form a triangular structure.
According to the invention, 8 ironing units are provided, and the area of the ironing plate of each ironing unit is 500mm multiplied by 500mm; 7 arch adjusting units are arranged.
According to the invention, it also comprises: the side baffle devices are arranged behind the ironing units on the leftmost side and behind the ironing units on the rightmost side; the side baffle device comprises a slide rail, a side baffle slidably mounted on the slide rail, and a hydraulic telescopic oil cylinder driving the side baffle to move along the slide rail, wherein the extending direction of the slide rail is parallel to the arrangement direction of the ironing units.
According to the invention, at least 6 ironing units are provided, the curved surface adjustment range being 0-180mm.
(III) advantageous effects
The beneficial effects of the invention are:
the ironing system for the paver adjusts the included angle between two adjacent ironing sub-boards through the plurality of independent arch adjusting units so as to realize the adjustment of the radian of the curved surface of the ironing board, and is further suitable for paving a curved surface road.
Drawings
Fig. 1 is a schematic front view of an ironing system for a paving machine according to a first embodiment of the present disclosure;
fig. 2 is a perspective view of an arch adjustment unit (with left and right mounts removed) of the screed system for a paving machine shown in fig. 1;
FIG. 3 is a perspective view of an arching adjustment unit and ironing unit attachment configuration of the ironing system shown in FIG. 1;
fig. 4 and 5 are illustrations of a screed plate sweep adjustment method for the screed system of the paving machine shown in fig. 1;
fig. 6 is a perspective schematic view of the ironing system for the paving machine shown in fig. 1.
[ description of reference ]
1: an ironing unit; 2: a guide bar; 3: ironing the main body; 4: ironing the sub-board; 5: an arch adjusting unit; 6: a motor; 7: mounting a plate; 8: a driving wheel; 9: a driven wheel; 10: a left external thread rod end joint bearing; 11: a right external thread rod end joint bearing; 12: a left securing pin; 13: a right securing pin; 14: a travel switch; 15: a stopper; 16: a heat radiation fan; 17: a foot pedal; 18: an edge dam device; 19: a leveling control device; 20: an upper frame; 21: fixing the hinge seat; 22: swinging the hinged seat; 23: a lower hinge point; 24: a left mounting base; 25: a right mounting base; 26: a left guide seat; 27: a right guide seat; 28: a first fixing pin; 29: a second fixing pin; 30: a third fixing pin.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 1, in the present embodiment, an ironing system for a paving machine is provided that is suitable for paving a curved road. The curved surface according to the present invention is preferably a pelvic cavity type space three-dimensional curved surface as a high-speed loop, and the planar line shape thereof is a blous curve and a macconnel curve, and the transverse line shape thereof is a parabola. Of course, the ironing system provided by the present invention is applicable to other curved surfaces as well, and may also be used for paving a flat surface.
Specifically, the ironing system comprises a plurality of ironing units 1 and a plurality of arch adjusting units 5 which are arranged side by side from left to right. Each ironing unit 1 comprises an ironing main body 3 and ironing boards 4 connected below the ironing main body 3, all the ironing boards 4 are transversely arranged from left to right to form the ironing board of the ironing system, and the ironing main bodies 3 of every two adjacent ironing units 1 are hinged, and the hinged position refers to a lower hinged point 23 in fig. 4. In which, as shown in figures 1 and 3, the ironing body 3 can be understood as the necessary structure of the ironing units other than the lowermost ironing board, for example comprising a sideboard attached above the ironing boards for hinging the two ironing units together.
Every two adjacent ironing units 1 are correspondingly provided with an arch adjusting unit 5, the arch adjusting unit 5 simultaneously drives two adjacent ironing units 1 to rotate around the hinge of the two ironing units (namely the hinge of two adjacent ironing main bodies 3), namely, the two ironing units 1 both rotate, so that the radian of the ironing board is changed by changing the included angle between two adjacent ironing sub-boards 4. From this, each screed board is adjusted simultaneously to this structure, and accomplishes the adjustment of screed plate curved surface shape through the angle change of adjacent screed board, and the adjustment speed is fast, is favorable to carrying out the operation of paving in order of continuous circles, is favorable to spreading paving material such as pitch evenly on the road surface that is the three-dimensional curved surface of pelvic cavity formula space. It will be understood that the curved surface of the screed is made up of a plurality of screed plates which are flat plates, and thus the curved surface is referred to as an approximate curved surface.
Referring to fig. 2 and 3, specifically, the arch adjusting unit 5 includes a motor 6, a mounting plate 7, a driving wheel 8, a driven wheel 9, a left externally threaded rod end oscillating bearing 10, a right externally threaded rod end oscillating bearing 11, a left mounting seat 24, a right mounting seat 25, a left fixing pin 12, and a right fixing pin 13. For clarity of description, the terms "left" and "right" are defined in the present embodiment with reference to the orientation of fig. 1, but the terms "left" and "right" referred to herein are relative concepts and are not limited to the present embodiment.
Wherein, motor 6 fixes on mounting panel 7 (preferably adopt the bolt fastening), action wheel 8 and motor 6's pivot fixed connection (preferably adopt bolt fixed connection), and motor 6 fixes in the left side of mounting panel 7, is equipped with the pivot of mounting hole power supply machine 6 on the mounting panel 7 and wears the right side from the left side, and action wheel 8 is located the right side of mounting panel 7. Of course, without limitation, in other embodiments, the motor may be fixed to the right side of the mounting plate and the drive pulley may be located on the left side of the mounting plate.
Wherein, driven wheel 9 is rotationally fixed on mounting panel 7, and driven wheel 9 follows from action wheel 8 and rotates. In this embodiment, the driving wheel 8 and the driven wheel 9 are both chain wheels, and the driving wheel 8 and the driven wheel 9 are connected with a chain to form a chain transmission therebetween. Of course, the manner of driving the driven wheel 9 from the driving wheel 8 is not limited to chain transmission, and belt transmission, gear transmission and the like can be adopted.
Wherein, the driven wheel 9 is provided with an inner hole which runs through the left side and the right side of the driven wheel 9. Two sections of internal threads are arranged on the inner wall of the inner hole, and the driven wheel 9 in the embodiment is very thick, so that two sections of internal threads can be conveniently arranged on the inner wall of the inner hole.
As known to those skilled in the art, the external thread rod end oscillating bearing comprises a rod end and a bearing end, wherein the rod end is provided with an external thread to form a thread end (the rod end is an external thread rod), the bearing end comprises an outer ring and an inner ring, and the outer ring is fixedly connected with the rod end; the inner race is rotatably disposed within the outer race. The threaded ends of the left external thread rod end oscillating bearing 10 and the right external thread rod end oscillating bearing 11 are respectively in threaded connection with two sections of internal threads in the inner hole, namely, the threaded end of the left external thread rod end oscillating bearing 10 is screwed with the left internal thread in the inner hole, and the threaded end of the right external thread rod end oscillating bearing 11 is screwed with the right internal thread in the inner hole. Two sections of internal threads in an inner hole of the driven wheel 9 are opposite in turning direction, and the thread turning directions of the thread ends of the left external thread rod end joint bearing 10 and the right external thread rod end joint bearing 11 are the same, so that the rotation of the driven wheel 9 can be converted into transverse approaching or far-away movement of the left external thread rod end joint bearing 10 and the right external thread rod end joint bearing 11, namely when the same driven wheel 9 rotates, the left external thread rod end joint bearing 10 and the right external thread rod end joint bearing 11 can be simultaneously close to the driven wheel 9 or far away from the driven wheel 9, and the structure can be understood by referring to a screw nut mechanism. It will be appreciated that rotation of the driven wheel in both directions will cause the left and right externally threaded rod end spherical bearings to move closer or farther, respectively. Of course, the present invention is not limited to this, and in other embodiments, the two segments of the internal threads in the internal bore may have the same thread direction, and the thread directions of the thread ends of the left and right externally threaded rod end spherical bearings 10 and 11 are opposite. Such an arrangement may also translate rotation of the driven wheel 9 into lateral approaching or distancing movement of the left and right externally threaded rod end spherical bearings 10, 11.
The bottom ends of the left mounting seat 24 and the right mounting seat 25 are respectively and fixedly connected (preferably welded) with the two adjacent ironing boards 4, that is, the bottom of the left mounting seat 24 is fixedly connected with the left ironing board 4 and the bottom of the right mounting seat 25 is fixedly connected with the right ironing board 4 for the two adjacent ironing boards 4. A through hole corresponding to the inner ring of the left external thread rod end joint bearing 10 is formed in the left mounting seat 24, a through hole corresponding to the inner ring of the right external thread rod end joint bearing 11 is formed in the right mounting seat 25, a left fixing pin 12 penetrates through the through hole of the left mounting seat 24 and the inner ring of the left external thread rod end joint bearing 10, the left fixing pin 12 is in transition fit with the inner ring of the left external thread rod end joint bearing, and the left fixing pin is in transition fit with the through hole of the left mounting seat; the right fixing pin 13 penetrates through a through hole of the right mounting seat 25 and an inner ring of the right external thread rod end oscillating bearing 11, the right fixing pin 13 is in transition fit with the inner ring of the right external thread rod end oscillating bearing 16, and the right fixing pin 13 is in transition fit with the through hole of the right mounting seat. In the present embodiment, the left and right mounting seats 24 and 25 are each configured as follows: including two spaced risers and through a roof of bolted connection on two riser tops, door font is constituteed with a roof to two risers, and the bottom and the ironing board of two risers pass through welded fastening and are connected. The outer ring of the external thread rod end joint bearing is inserted into a space enclosed by the two vertical plates and the top plate, and the bottom surface of the top plate is provided with a groove corresponding to the outer ring of the external thread rod end joint bearing. All be equipped with above-mentioned through-hole on two risers, the through-hole on the riser, the inner circle of external screw rod end joint bearing and the through-hole on another riser are passed in proper order to the fixed pin. Of course, without being limited thereto, the mounting seat may be provided with a through hole on only one vertical plate for the fixing pin to pass through, but the structure in which both vertical plates have through holes is more stable.
Wherein the distance from the hinge point (i.e. the lower hinge point 23) of two adjacent ironing bodies 3 to the left fixing pin 12 and the right fixing pin 13 is the same. More preferably, each ironing unit is identical, the left and right externally threaded rod end oscillating bearings 10, 11, the left and right mounting seats are all identical.
In summary, in the present embodiment, the way for the arch adjusting unit 5 to simultaneously drive the two adjacent ironing units 1 to rotate around the hinge of the two ironing units is (with reference to the following hinge point 23): motor 6 drives action wheel 8 and rotates, action wheel 8 drives from the rotation of driving wheel 9, from the lateral shifting that two external screw thread rod end joint bearings were close to or kept away from about driving wheel 9's rotation drives simultaneously, meanwhile, control two external screw thread rod end joint bearings and drive the fixed pin motion that corresponds respectively, control two fixed pin motions of moving and drive two mount pads of controlling simultaneously, and then control two mount pads and drive two movements of controlling ironing board 4, because of controlling the ironing main part 3 that two ironing board 4 correspond articulated, the fixed pin, mount pad and ironing board 4 can only rotate around articulated department, further because of the fixed pin wears to establish in external screw thread rod end joint bearing inner circle, external screw thread rod end joint bearing, from driving wheel 9, mounting panel 7, motor 6, action wheel 8 can be along with the motion of fixed pin and move together. Since the motions of the left and right pivoting-end spherical bearings and the left and right fixing pins are symmetrical, the two ironing boards 4 are rotated in opposite directions, i.e., in directions approaching each other or moving away from each other at the same time.
The understanding of the above structural design can be referred to fig. 4, in which the bold dashed line in fig. 4 represents a variable length and the bold solid line represents a fixed length; l represents the distance between the left fixing pin 12 and the right fixing pin 13 in the arch adjusting unit 5, and alpha represents the included angle between two adjacent ironing boards 4. The transverse movement of the left outer thread rod end joint bearing 10 and the right outer thread rod end joint bearing 11 drives the left fixing pin 12 and the right fixing pin 13 connected with the left outer thread rod end joint bearing to be close to or far away from each other, so that the distance L between the left fixing pin 12 and the right fixing pin 13 is changed, the left fixing pin 12, the right fixing pin 13 and the lower hinge point 23 actually form a link mechanism, the distance change between the left fixing pin 12 and the right fixing pin 13 enables the two adjacent ironing units 1 to rotate around the lower hinge point 23 of the two ironing units, and the included angle alpha of the two adjacent ironing sub-plates 4 is changed. It can be understood that the forward rotation and the reverse rotation of the motor 6 respectively cause the left external thread rod end oscillating bearing 10 and the right external thread rod end oscillating bearing 11 to approach and separate, and further cause the included angle alpha between two adjacent ironing plates 4 to become smaller or larger.
Further, in the above structure, the mounting plate 7 is not fixed to any component and is floating, and further, the motor 6, the driving wheel 8, the driven wheel 9 and the left and right two external thread rod end joint bearings are also floating, so that the motor can freely move when adjusting the included angle between two adjacent ironing boards 4. Specifically, referring to fig. 4, the distance from the lower hinge point 23 to the left and right fixing pins 12 and 13 is constant, and the distance between only the left and right fixing pins 12 and 13 is constant, and the three are isosceles triangles. When the lower hinge point 23 is taken as a reference, the mounting plate 7, the motor 6, the driving wheel 8 and the driven wheel 9 move up and down in parallel with the direction of the high line (i.e., the high line of an isosceles triangle) of the connecting line from the lower hinge point 23 to the left fixing pin 12 and the right fixing pin 13, and when the ground is taken as a reference, the high line moves, and the mounting plate 7, the motor 6, the driving wheel 8 and the driven wheel 9 also move along with the movement of the high line, not only up and down. Of course, the movement of the left and right externally threaded rod end oscillating bearings is more complicated due to the movement of the bearings with respect to the driven wheel 9.
In summary, according to the specific structural arrangement described above, it is possible to realize that the arching adjusting unit 5 simultaneously drives two adjacent ironing units 1 to rotate around the hinge joint of the two, and the description of the movement process is only for the sake of understanding and should not be regarded as limiting.
The above description is only for one arch adjusting unit 5 and the two corresponding ironing units on the left and right, it can be understood that any two adjacent ironing units and the corresponding arch adjusting units are the same as the above described structures, and as a whole, the shape of the whole curved surface of the ironing board is changed by controlling seven included angles α between eight ironing boards. The structure uses the same power source to drive the two adjacent ironing sub-boards to move so as to adjust the included angle between the two ironing sub-boards, and has the advantages of ingenious design and reliable structure.
Of course, the present invention is not limited thereto, and the specific structure of the arch adjusting unit may be any other structure as long as it can drive the ironing board to rotate relative to the hinge. In addition, in the above embodiment, the curved surface shape of the screed plate is represented by the distance between the two fixing pins, but the present invention is not limited to this, and in other embodiments, the distance between the guide seats, the distance between the facing end surfaces of the left and right externally threaded rod end joint bearings, or other quantities in other structures may be used for representation.
Preferably, the diameter of the driven wheel 9 is larger than that of the driving wheel 8, that is, the driving wheel 8 is a high-speed wheel, and the driven wheel 9 is a low-speed wheel, so that the high-speed rotation of the driving wheel 8 can be converted into the low-speed movement of the driven wheel 9, and the adjustment of the included angle between the ironing sub-boards 4 of every two adjacent ironing units 1 is more accurate.
Further, the arch adjusting unit 5 further includes left and right guide seats 26 and 27, a guide bar 2, a stroke switch 14, and a stopper 15. The end of the left fixing pin 12 far away from the left mounting seat 24 is rotatably connected with the left guide seat 26, the end of the right fixing pin 13 far away from the right mounting seat 25 is rotatably connected with the right guide seat 27, the left guide seat 26 and the right guide seat 27 are slidably sleeved on the guide rod 2, and it can be understood that the left guide seat 26, the right guide seat 27 and the guide rod 2 are only supported on the left fixing pin and the right fixing pin. The travel switch 14 is disposed on one of the left guide base 26 and the right guide base 27, and the stopper 15 is disposed on the other of the left guide base 26 and the right guide base 27 and corresponds to the travel switch 14, and in this embodiment, the travel switch 14 is fixed (preferably by a bolt) to the right guide base 27, and the stopper 15 is fixed to the left guide base 26. Travel switch 14 and dog 15 cooperate, and when two fixed pins were too close to, when the angle of adjustment was too big promptly, travel switch 14 touched dog 15 to trigger travel switch 14 and close motor 6 automatically, prevent that the adjustment is excessive. The travel switch 14 can be in communication connection with a central control device of the paver, the travel switch 14 sends an instruction to the central control device after being triggered, the central control device is in communication connection with the motor, the central control device sends a stop instruction to the motor after receiving the instruction of the travel switch 14, and of course, the travel switch 14 can also be in direct communication connection with the motor so as to send the stop instruction to the motor when being triggered.
In this embodiment, the arch adjustment unit 5 is further provided with a distance sensor for measuring the distance between the left and right externally threaded rod end spherical bearings 10 and 11, and the distance sensor may be mounted on either one of the left and right fixing pins 12 and 13 or on either one of the left and right guide bases 26 and 27, as long as the distance between the left and right fixing pins 12 and 13 can be measured. The distance sensor can be in communication connection with a central control device of the paver and is used for transmitting the distance information between the left fixing pin 12 and the right fixing pin 13 to the central control device of the paver. The distance sensor is preferably a resistive sensor. The central control device is pre-stored with a preset curve shape corresponding to each road walking position and preset values of the distance between the two fixing pins of all the arch adjusting units corresponding to each preset curve shape, and when the distance between the left fixing pin 12 and the right fixing pin 18 in each arch adjusting unit moves to the corresponding preset value, the curve shape of the screed is adjusted to the preset curve shape. Therefore, closed-loop control is formed, and the accuracy is high.
The distance sensor monitors the distance between the left fixing pin 12 and the right fixing pin 13 in real time and feeds the distance back to the central control device, the adjustment almost has no delay phenomenon, the paving accuracy is guaranteed, and the pavement paving precision is improved.
Specifically, in this embodiment, the motor 6 is a servo motor, which can control the speed, operate stably, and stop operation at any time with accurate position precision.
In the present embodiment, two driven wheels 9 are disposed below the driving wheel 8 to form a triangular structure, which is provided to make the arch adjusting structure more stable. Of course, two left male screw rod end oscillating bearings 10, two right male screw rod end oscillating bearings 11, two left fixing pins 12, two right fixing pins 13, two left mounting seats 24, and two right mounting seats 25 may be provided corresponding to the two driven wheels 9. And the left guide seat 26, the right guide seat 27, the travel switch 14 and the stopper 15 can be selectively arranged in one group or two groups correspondingly.
Referring to fig. 1 and 5, further, the ironing system for the paver further comprises an upper frame 20, wherein the upper part of the ironing body 3 of the leftmost ironing unit 1 is hinged with the upper frame 20 through a first fixing pin 28 to form a fixed hinge seat 21; the upper part of the ironing body 3 of the rightmost ironing unit 1 is hinged to the lower part of the connecting plate connected to the upper frame 20 by a second fixing pin 29, and the upper part of the connecting plate is hinged to the upper frame 20 by a third fixing pin 30 to form a swing hinge seat 22. The whole ironing system is in a triangular structure formed by the leftmost fixed hinged seat 21, the rightmost swinging hinged seat 22 and the ironing units 1 which are arranged side by side, the shape of the curved surface of the ironing plate can be adjusted, and the integral strength of the ironing system can be ensured. The above structure can be understood by referring to fig. 5, in which the bold solid line in fig. 5 is an invariable length and the bold dotted line is a variable length. The linear distance from the first fixing pin 28 to the third fixing pin 30 is not variable, the linear distance from the second fixing pin 29 to the third fixing pin 30 is not variable, and the linear distance from the first fixing pin 28 to the second fixing pin 29 is variable, that is, the whole width of all the ironing units is variable, so that the curved surface shape of the ironing plate can be adjusted after the ironing units are fixed on the machine frame.
Referring to fig. 1, further, in this embodiment, the ironing system for a paving machine further includes: and the leveling control device 19 is used for leveling the pavement to be paved and ensuring the paving flatness.
Referring to fig. 6, further, in this embodiment, the ironing system for a paving machine further includes two edge dam devices 18 disposed behind the leftmost ironing unit 1 and behind the rightmost ironing unit 1, respectively. The edge dam apparatus 18 comprises a slide rail, an edge dam slidably mounted on the slide rail, and a hydraulic telescopic cylinder for driving the edge dam to move along the slide rail, wherein the extension direction of the slide rail is parallel to the arrangement direction of the ironing units 1, i.e., in the lateral direction. The side baffle device 18 is used for limiting the material distribution width of the spiral auger material distribution system, the paving width can be adjusted according to design parameters in actual construction, the baffle is pushed by the hydraulic telescopic oil cylinder to move left and right, and the paving width is adjusted to a set width.
Referring to fig. 6, further, the ironing system for a paver of this embodiment further includes a plurality of cooling fans 16 and a plurality of foot boards 17, one cooling fan 16 is correspondingly disposed above the motor 6 of each arch adjusting unit 5, so as to reduce the temperature of the motor 6 during operation and prevent the motor 6 from being short-circuited or damaged due to an excessively high temperature, and one foot board 17 is correspondingly disposed outside each ironing unit 1, so that a constructor can conveniently overhaul or maintain the ironing system.
In particular to the embodiment, the ironing system for the spreading machine comprises 8 ironing units 1, and the area of the ironing board 4 of each ironing unit 1 is 500mm multiplied by 500mm. And comprises 7 arching units 5 arranged in correspondence with 8 ironing units 1. According to experiments, it is shown that when the number of the ironing units 1 is set to 8, the area of the ironing board 4 of each ironing unit 1 is 500mm × 500mm, the effect for the curved surface paving is the best. Of course, the number of ironing units is not limited to eight, preferably at least 6, it being understood that the number of crown adjusting units is always 1 less than the number of ironing units.
Further, the paving width of the ironing system for the paver of the embodiment is in the range of 3.0m-4.0m, and the paving width can be adjusted randomly in the range; the curved surface adjustment range is 0-180mm, and the curved surface adjustment range refers to the range of the vertical distance from the highest point of the two side ends of the ironing plate to the lowest point of the ironing plate, wherein 0mm corresponds to the state that the whole ironing plate is a flat plate, and 180mm corresponds to the state that the ironing plate is in the maximum bending degree.
Further, in the present embodiment, each ironing unit 1 has independent vibrating means and electric heating means. The hydraulic motor is connected with a driving belt pulley, the driving belt pulley is connected with a driven belt pulley through a belt, the driven belt pulley is connected with the vibrating shaft, and the vibrating shaft is connected with the vibrating shaft through a universal coupling; the hydraulic motor rotates the driving belt pulley, the driving belt pulley rotates the driven belt pulley through a belt, the driven belt pulley rotates the vibrating shaft, and the vibrating shaft rotates other adjacent vibrating shafts through the universal coupling, so that the rammer vibrating device (called vibrating device for short) acts; the vibrating device is used for pre-compacting the pavement, and improves the compactness of the pavement. The amplitude value can be adjusted according to the required compactness, and the asphalt paving material can be smashed into the required size. The electric heating device is responsible for preheating the ironing plate and the rammer before paving the asphalt, so that the adhesion during paving is prevented.
Further, the ironing system for the spreading machine provided by the embodiment has the advantages that most parts are localized, and the cost of the machine is reduced.
The operation of a paving machine having the above-described screed system is described as follows.
The paver is provided with a central control device, and the design curve of any one curve preset point is stored in the central control device as a preset curve shape. When the central control device of the spreading machine judges that the walking distance of the spreading machine reaches the set distance, the central control device can send a signal to the motor 6 of the arch adjusting unit 5, and the motor 6 starts to operate. And a distance sensor of the arch adjusting unit 5 measures the distance between the left external thread rod end oscillating bearing 10 and the right external thread rod end oscillating bearing 11 in real time and transmits the data back to a central control device of the paver. When the central control device detects that the distance between the left external thread rod end joint bearing 10 and the right external thread rod end joint bearing 11 of each arch adjusting unit 5 reaches a preset distance, the central control device sends a signal to the motor 6 of each arch adjusting unit 5, so that the motor 6 stops running. When all the motors 6 stop operating, the curved shape of the screed of the paver has been adjusted to a predetermined curved shape. The judgment that the walking distance of the paver reaches the set distance can be carried out in the following two modes: judging whether the current numerical value of the walking distance is the same as the preset distance or not; it is determined whether the difference between the distances traveled before and after the two times is equal to a set difference (e.g., 2 m).
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (9)
1. An ironing system for a paving machine, comprising:
a plurality of ironing units (1) arranged side by side, each of said ironing units (1) comprising an ironing body (3) and an ironing board (4) connected below said ironing body (3), all said ironing boards (4) forming an integral ironing board of said ironing system, and the ironing bodies (3) of each two adjacent ironing units (1) being hinged; and
the ironing plate comprises a plurality of ironing units (1), wherein each two adjacent ironing units (1) are correspondingly provided with one arch adjusting unit (5), and the arch adjusting units (5) drive the two adjacent ironing units (1) to rotate around the hinged joint of the two ironing units so as to change the radian of the ironing plate by changing the included angle between the two adjacent ironing sub-plates (4);
the arch adjusting unit (5) comprises:
a mounting plate (7);
the motor (6) is fixed on the mounting plate (7);
a driving wheel (8) fixedly connected with a rotating shaft of the motor (6);
the driven wheel (9) is rotatably fixed on the mounting plate (7), the driven wheel (9) rotates along with the driving wheel (8), an inner hole is formed in the driven wheel (9), and two sections of internal threads are formed in the inner wall of the inner hole;
the left external thread rod end oscillating bearing (10) and the right external thread rod end oscillating bearing (11) are respectively in threaded connection with the two sections of internal threads in the inner hole;
the bottom ends of the left mounting seat (24) and the right mounting seat (25) are respectively and fixedly connected with two adjacent ironing sub-plates (4), a through hole corresponding to the inner ring of the left external thread rod end oscillating bearing (10) is formed in the left mounting seat (24), and a through hole corresponding to the inner ring of the right external thread rod end oscillating bearing (11) is formed in the right mounting seat (25);
the left fixing pin (12) and the right fixing pin (13) are arranged, the left fixing pin (12) penetrates through a through hole of the left mounting seat (24) and an inner ring of the left external thread rod end joint bearing (10), and the right fixing pin (13) penetrates through a through hole of the right mounting seat (25) and an inner ring of the right external thread rod end joint bearing (11).
2. The ironing system for a paving machine as recited in claim 1,
arranging at least 6 ironing units (1), wherein the curved surface adjustment range is 0-180mm; the screw thread turning directions of the two sections of internal threads in the inner hole are opposite, the screw thread turning directions of the screw thread ends of the left external thread rod end joint bearing (10) and the right external thread rod end joint bearing (11) are the same, or the screw thread turning directions of the two sections of internal threads in the inner hole are the same, and the screw thread turning directions of the screw thread ends of the left external thread rod end joint bearing (10) and the right external thread rod end joint bearing (11) are opposite.
3. The ironing system for a paving machine as claimed in claim 2,
transfer and encircle unit (5) including the distance sensor who measures distance between left fixed pin (12) and right fixed pin (13), distance sensor with motor (6) can with the well accuse device communication of paver is connected.
4. Ironing system for a spreading machine according to claim 2 or 3, characterized in that said arch adjustment unit (5) further comprises:
the left guide seat (26) and the right guide seat (27), one end of the left fixing pin (12) far away from the left mounting seat (24) is rotatably connected with the left guide seat (26), and one end of the right fixing pin (13) far away from the right mounting seat (25) is rotatably connected with the right guide seat (27);
the guide rod (2), the left guide seat (26) and the right guide seat (27) are sleeved on the guide rod (2) in a sliding manner;
a travel switch (14) provided on one of the left guide base (26) and the right guide base (27);
and a stopper (15) provided on the other of the left guide base (26) and the right guide base (27) and corresponding to the stroke switch (14).
5. The ironing system for a paving machine as claimed in claim 1, further comprising:
the upper portion of the ironing main body (3) of the ironing unit (1) on the leftmost side is hinged to the upper frame (20), the upper portion of the ironing main body (3) of the ironing unit (1) on the rightmost side is hinged to the lower portion of a connecting plate connected to the upper frame (20), and the upper portion of the connecting plate is hinged to the upper frame (20).
6. The ironing system for a paving machine as recited in claim 1,
the driving wheel (8) and the driven wheel (9) are in chain transmission;
the diameter of the driving wheel (8) is smaller than that of the driven wheel (9).
7. The ironing system for a paving machine as recited in claim 1,
two driven wheels (9) are arranged below the driving wheel (8) to form a triangular structure.
8. The ironing system for a paving machine according to claim 1,
8 ironing units (1) are arranged, and the area of an ironing plate (4) of each ironing unit (1) is 500mm multiplied by 500mm;
7 arch adjusting units (5) are arranged.
9. The ironing system for a paving machine as claimed in claim 1, further comprising:
the side baffle devices (18) are arranged behind the ironing unit (1) at the leftmost side and behind the ironing unit (1) at the rightmost side;
the side baffle device (18) comprises a slide rail, a side baffle slidably mounted on the slide rail, and a hydraulic telescopic cylinder driving the side baffle to move along the slide rail, wherein the extension direction of the slide rail is parallel to the arrangement direction of the ironing units (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029269.6A CN106801374B (en) | 2017-01-16 | 2017-01-16 | Ironing system for paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029269.6A CN106801374B (en) | 2017-01-16 | 2017-01-16 | Ironing system for paver |
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| Publication Number | Publication Date |
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| CN106801374A CN106801374A (en) | 2017-06-06 |
| CN106801374B true CN106801374B (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710029269.6A Active CN106801374B (en) | 2017-01-16 | 2017-01-16 | Ironing system for paver |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11255057B2 (en) | 2020-03-07 | 2022-02-22 | Brian Gallagher | Screed assembly for road paving machines, and a method for repaving road surfaces |
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| CN106801374A (en) | 2017-06-06 |
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