CN111648211A - Telescopic screed plate lengthening support device and construction method - Google Patents
Telescopic screed plate lengthening support device and construction method Download PDFInfo
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- CN111648211A CN111648211A CN202010524263.8A CN202010524263A CN111648211A CN 111648211 A CN111648211 A CN 111648211A CN 202010524263 A CN202010524263 A CN 202010524263A CN 111648211 A CN111648211 A CN 111648211A
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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
- E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
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- Road Paving Machines (AREA)
Abstract
The invention discloses a lengthening support device of a telescopic screed and a construction method, the lengthening support device comprises a support adjusting component with adjustable length, one end of the support adjusting component is fixedly connected with an outer side plate of a primary telescopic screed, the outer end of the primary telescopic screed is fixedly connected with an extension joint, the end part of the extension joint is fixedly provided with an adjusting end plate, the other end of the support adjusting component is fixedly connected with the adjusting end plate, two ends of the support adjusting component with adjustable length are respectively fixedly connected with the outer end of the primary telescopic screed and the adjusting end plate, the lengthening support adjusting device is suitable for adjusting requirements of different distances for lengthening the primary telescopic screed, the support adjusting component is utilized to support the extension joint, the rigidity of the screed is enhanced, the structure is simple, the installation is convenient, and the outer end of the primary telescopic screed is rigidly connected with the adjusting end plate through the support adjusting component, the support rigidity of the adjusting end plate is improved, the, the paving quality is improved.
Description
Technical Field
The invention belongs to the technical field of pavement mechanical equipment, and particularly relates to a lengthening supporting device of a telescopic ironing plate and a construction method.
Background
The paver is the most main equipment applied to modern road construction, not only can be used for paving a base layer road surface, but also can be used for paving a surface layer asphalt road surface. The width of the screed plate is adjusted in the paving operation process, so that pavements with different widths can be achieved. When the paving machine is used for paving in a large width, the length of the ironing plate is usually lengthened, the integral rigidity of the ironing plate is reduced, and the compactness of two ends of the paved road is influenced under the comprehensive action of heating and mixing materials, so that phenomena of virtual pavement, rough surface and the like are generated.
The existing ironing plate structure mainly comprises mechanical connection and hydraulic telescopic connection, the mechanical connection connects the lengthened section to the basic ironing plate section by section through bolts, the connection rigidity is high, and the paving quality is good. But the defects are obvious, the connection process is complex, the labor is consumed, the time is long, and the paving width is inconvenient to adjust. The other hydraulic ironing plate realizes stepless stretching of the basic ironing plate through the stretching oil cylinder and realizes connection of the lengthened section and the basic ironing plate through the quick-connection oil cylinder, is convenient to operate and small in use time, but the main problem of the mode is that the overall rigidity of the hydraulically-connected ironing plate is relatively poor, particularly when asphalt mixture is paved, the ironing plate is large in thermal deformation, and the mixture carried by the rotary distributor is obviously piled at the two ends of the ironing plate, so that the phenomenon of virtual paving at the two ends of the ironing plate is caused, and the paving quality is reduced.
Disclosure of Invention
The invention aims to provide a lengthening support device of a telescopic ironing plate and a construction method, which are used for overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a flexible screed extension strutting arrangement, including the flexible screed of one-level, the flexible screed of second grade and adjustable length support adjusting part, the flexible screed of second grade is located the flexible screed outside of one-level, the flexible screed of one-level passes through the flexible hydro-cylinder drive of one-level, the flexible screed of second grade passes through the flexible hydro-cylinder drive of second grade, support adjusting part's one end and the flexible screed outer panel fixed connection of one-level, the flexible screed outer end fixedly connected with extension festival of second grade, the end fixing of extension festival has the regulation end plate, support adjusting part's the other end and adjust end plate fixed connection.
Furthermore, the hydraulic control system further comprises a hydraulic valve group for controlling the secondary telescopic oil cylinder, an oil inlet of the hydraulic valve group is connected with an oil outlet of the oil cylinder valve group through an oil pipe, an oil outlet of the hydraulic valve group is connected with an oil inlet of the secondary telescopic oil cylinder through an oil pipe, and an oil inlet of the oil cylinder valve group is connected with an oil outlet of the secondary telescopic oil cylinder through an oil pipe.
Further, support the adjusting part and include telescopic adjusting rod, first fixing support and second fixing support, telescopic adjusting rod's one end rotates with first fixing support to be connected, telescopic adjusting rod's the other end rotates with second fixing support to be connected, first fixing support and the flexible screed outer panel fixed connection of one-level, second fixing support and regulation end plate fixed connection.
Furthermore, a first fixed support is fixedly connected to the outer side plate of the first-stage telescopic ironing plate through a bolt, two lug plates with pin holes are arranged on the first fixed support, and one end of a telescopic adjusting rod is rotatably connected with the lug plates on the first fixed support.
Furthermore, a second fixed support is welded or fixed on the adjusting end plate through a bolt, an ear plate with a pin hole is arranged on the second fixed support, and the other end of the telescopic adjusting rod is rotatably connected with the ear plate on the second fixed support through a pin shaft.
Furthermore, the telescopic adjusting rod comprises a middle telescopic connecting rod, a first rotating connecting part and a second rotating connecting part, one end of the telescopic adjusting rod is fixedly connected with one end of the first rotating connecting part, and the other end of the telescopic adjusting rod is fixedly connected with one end of the second rotating connecting part.
Furthermore, two ends of the telescopic adjusting rod are respectively provided with an internal thread block, one end of the first rotating connecting portion is fastened with the internal thread block at one end of the telescopic adjusting rod through a nut after being in threaded connection, and one end of the second rotating connecting portion is fastened with the internal thread block at the other end of the telescopic adjusting rod through a nut after being in threaded connection.
Furthermore, the other end of the first rotating connecting portion is rotatably connected with the first fixing support through a pin shaft, a joint bearing is arranged at the rotating connection position of the first rotating connecting portion and the first fixing support, the other end of the second rotating connecting portion is rotatably connected with the second fixing support through a pin shaft, and a joint bearing is arranged at the rotating connection position of the second rotating connecting portion and the second fixing support.
Further, the telescopic adjusting rod comprises a supporting rod and an extension rod, one end of the supporting rod is a through hole, one end of the extension rod is arranged in the through hole of the supporting rod, and a fastening bolt for fastening is arranged on the side wall of the supporting rod.
A construction method of a telescopic ironing plate comprises the following steps:
step 1), for the construction width of a lengthening support device of a telescopic screed plate needing to be additionally installed, fixedly installing a lengthening section at the outer end of a secondary telescopic screed plate, wherein the additionally installed length of the lengthening section, and the sum of the telescopic lengths of a primary telescopic screed plate and a secondary telescopic screed plate are greater than the maximum width of a road to be constructed;
step 2), adjusting the telescopic length of the secondary telescopic ironing plate and the fixed installation length of the support adjusting assembly at the same time, and locking the support adjusting assembly and the secondary telescopic oil cylinder;
step 3), adjusting the telescopic length of the first-stage telescopic ironing plate to meet the construction width for different construction road widths in the construction process
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a lengthening supporting device of a telescopic ironing plate, which comprises a supporting and adjusting assembly with adjustable length, wherein one end of the supporting and adjusting assembly is fixedly connected with an outer side plate of a primary telescopic ironing plate, the outer end of the primary telescopic ironing plate is fixedly connected with an lengthening section, the end part of the lengthening section is fixedly provided with an adjusting end plate, the other end of the supporting and adjusting assembly is fixedly connected with the adjusting end plate, two ends of the supporting and adjusting assembly with adjustable length are respectively fixedly connected with the outer end of the primary telescopic ironing plate and the adjusting end plate, the lengthening supporting and adjusting device is suitable for adjusting requirements of different lengthening distances of the primary telescopic ironing plate, the lengthening section is supported by the supporting and adjusting assembly, the rigidity of the ironing plate is enhanced, the structure is simple, the installation is convenient, the outer end of the primary telescopic ironing plate is rigidly connected with the adjusting end plate by the supporting and adjusting assembly, the paving quality is improved.
Furthermore, the telescopic adjusting rod adopts a sectional structure design, so that the overall design length is shortened, and the telescopic adjusting rod is easy to carry and convenient to transport.
Furthermore, the length adjustment of the supporting and adjusting assembly is realized through the rotation matching of the screw rod and the nut, the thread adjusting range is large, the structure is simple and reliable, the locking nut is arranged on the adjusting rod, and the supporting effect can be effectively prevented from being influenced by the length change of the adjusting assembly caused by the loosening of the thread.
A construction method of a telescopic screed plate comprises the steps that for the construction width of a telescopic screed plate lengthening support device needing to be additionally installed, an extension section is fixedly installed at the outer end of a second-stage telescopic screed plate, and the sum of the installation length of the extension section, the telescopic length of a first-stage telescopic screed plate and the telescopic length of a second-stage telescopic screed plate is larger than the maximum width of a road to be constructed; the telescopic length of the second-level telescopic screed plate and the fixed installation length of the supporting and adjusting assembly are adjusted simultaneously, the supporting and adjusting assembly and the second-level telescopic oil cylinder are locked, the telescopic length of the first-level telescopic screed plate is adjusted to meet the construction width of different construction road widths in the construction process, the second-level telescopic screed plate is suitable for roads with different construction widths, and adjustment is convenient.
Drawings
Fig. 1 is a schematic view of an overall installation structure in an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the installation of the support adjusting assembly in the embodiment of the invention.
Fig. 3 is a schematic perspective view of a support adjustment assembly according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a telescopic adjusting rod according to an embodiment of the present invention.
Fig. 5 is an enlarged schematic view of a portion a of fig. 2.
Fig. 6 is an enlarged schematic view of a portion B of fig. 2.
Fig. 7 is a schematic view of a connection structure of a hydraulic valve group in the embodiment of the invention.
Wherein, 1, supporting the adjusting component; 2. a primary telescopic ironing board; 3. adjusting the end plate; 4. lengthening the section; 5. a hydraulic regulating control valve; 6. a distance detector; 51. a hydraulic valve block; 52. a bolt; 61. a distance sensor; 62. a sensor protective sleeve; 63. installing a bolt; 11. a telescopic adjusting rod; 12. a first fixed support; 13. a second fixed support; 111. a middle telescopic connecting rod; 112. a first rotational connection; 113. a second rotation connecting portion; 1110. a strut; 1111. lengthening a rod; 1112. fastening a bolt; 1113. an internal thread block; 114. a knuckle bearing; 115. a nut; 116. a pin shaft; 510. an oil inlet; 511. an oil outlet; 512. an oil cylinder valve group; 513. and a secondary telescopic oil cylinder.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, a flexible screed extension strutting arrangement, including the flexible screed 2 of one-level, the flexible screed 8 of second grade and adjustable length support adjusting part 1, the flexible screed 8 of second grade is located the flexible screed 2 outside of one-level, the flexible screed 2 of one-level passes through the flexible cylinder drive of one-level, the flexible screed 8 of second grade passes through the flexible cylinder drive of second grade, support adjusting part 1's one end and the flexible screed 2 outer panel fixed connection of one-level, the flexible screed 8 outer end fixedly connected with extension section 4 of second grade, the end fixing of extension section 4 has adjusting end plate 3, the other end and the adjusting end plate 3 fixed connection who support adjusting part 1.
The adjusting end plate 3 is fixedly connected with the lengthened section 4 through a bolt. As shown in fig. 3, the supporting and adjusting assembly 1 includes a telescopic adjusting rod 11, a first fixing support 12 and a second fixing support 13, one end of the telescopic adjusting rod 11 is rotatably connected with the first fixing support 12, the other end of the telescopic adjusting rod 11 is rotatably connected with the second fixing support 13, the first fixing support 12 is fixedly connected with the outer side plate of the first-stage telescopic screed 2, and the second fixing support 13 is fixedly connected with the adjusting end plate 3. First fixing support 12 passes through bolt fixed connection on the 2 outer panels of first-level flexible screed, is equipped with two otic placodes of taking the pinhole on first fixing support 12, and 11 one end of flexible regulation pole are rotated with the otic placode on first fixing support 12 and are connected. The second fixed support 13 is welded or fixed on the adjusting end plate 3 through a bolt, the second fixed support 13 is provided with an ear plate with a pin hole, and the other end of the telescopic adjusting rod 11 is rotatably connected with the ear plate on the second fixed support 13 through a pin shaft.
As shown in fig. 4, the telescopic adjusting lever 11 includes a middle telescopic connecting rod 111, a first rotating connecting portion 112 and a second rotating connecting portion 113, one end of the telescopic adjusting lever 11 is fixedly connected to one end of the first rotating connecting portion 112, the other end of the telescopic adjusting lever 11 is fixedly connected to the second rotating connecting portion 113, specifically, two ends of the telescopic adjusting lever 11 are respectively provided with an internal thread block 1113, one end of the first rotating connecting portion 112 is fastened to the internal thread block 1113 at one end of the telescopic adjusting lever 11 by a nut 115 after being connected to each other by a screw, one end of the second rotating connecting portion 113 is fastened to the internal thread block 1113 at the other end of the telescopic adjusting lever 11 by a nut 115 after being connected to each other by a screw, the other end of the first rotating connecting portion 112 is rotatably connected to the first fixing support 12 by a pin 116, and a joint bearing 114 is disposed at, the other end of the second rotating connecting part 113 is rotatably connected with the second fixed support 13 through a pin 116, and a joint bearing 114 is arranged at the rotating connection position of the second rotating connecting part 113 and the second fixed support 13.
Telescopic adjusting rod 11 includes branch 1110 and extension bar 1111, and the one end of branch 1110 is the through-hole, and extension bar 1111 one end sets up in the through-hole of branch 1110, and the fastening bolt 1112 that is used for the fastening is seted up to branch 1110 lateral wall. This application branch 1110 and extension bar 1111 are square steel, and telescopic adjusting rod 11 both ends are equipped with internal thread piece 1113 respectively, and internal thread piece 1113 lateral surface is square structure. One end of the extension bar is provided with an internal thread block, and the other end is provided with a connecting square tube with a mounting hole. The first rotation connection part 112 has a screw structure at one end and a single lug structure with a pin hole at the other end, the joint bearing 114 is installed in the pin hole and connected with the first fixed support 12 through a pin 116, and the other end is screwed into the internal thread block 1113 at one end of the telescopic adjusting rod 11 and is installed with a nut 115 for preventing looseness. One end of the second rotary connecting part 113 is of a screw structure, is screwed into the internal thread block 1113 at the other end of the telescopic adjusting rod 11, is provided with a nut 115 for preventing looseness, and is of a double-lug plate structure with a pin hole at the other end and is connected with the second fixed support 13 through the pin hole.
As shown in fig. 1, a group of supporting devices are symmetrically arranged on two sides of the first-stage telescopic ironing board.
As shown in fig. 6, still including being arranged in the flexible width of one-level flexible screed 2 to adjust the distance detection ware 6 that detects and be used for the hydraulic pressure regulation control valve 5 that the flexible screed 2 of one-level was adjusted, distance detection ware 6 includes distance sensor 61, distance sensor 61 is fixed in the flexible screed 2 inboard of one-level, distance sensor 61 outside cover is equipped with sensor protective sheath 62, sensor protective sheath 62 is used the construction bolt 63 to be fixed in on the flexible screed 2 of one-level, the flexible screed 2 of one-level is the movable plate, can move relative the flexible screed hydraulic pressure regulation seat of one-level under hydraulic power, distance sensor 61 is arranged in measuring the flexible screed 2 of one-level and the flexible screed hydraulic pressure regulation position width between the seat of one-level, distance sensor 61 passes through in the.
As shown in fig. 5 and 7, the hydraulic regulation control valve 5 includes a hydraulic valve group 51 fixed on the telescopic screed hydraulic regulation seat, the hydraulic valve group 51 is mounted on the telescopic screed hydraulic regulation seat through a bolt 52, an oil inlet 510 of the hydraulic valve group 51 is connected with an oil outlet of the cylinder valve group 512 through an oil pipe, an oil outlet 510 of the hydraulic valve group 51 is connected with an oil inlet of the secondary telescopic cylinder 513 through an oil pipe, an oil return port of the cylinder valve group 512 is connected with an oil outlet of the secondary telescopic cylinder 513 through an oil pipe, and the cylinder valve group 512 is used for controlling the telescopic of the secondary telescopic cylinder 513; the cylinder valve set 512 is a multi-way control oil path and can simultaneously provide hydraulic power for the primary telescopic cylinder and the secondary telescopic cylinder 513.
A construction method of a telescopic screed plate based on the telescopic screed plate lengthening and supporting device comprises the following steps:
step 1), according to the width of a road to be constructed, if the width of the road to be constructed is larger than the sum of the telescopic lengths of the primary telescopic screed plate 2 and the secondary telescopic screed plate 8, and an extension section needs to be additionally arranged, a telescopic screed plate extension supporting device needs to be arranged; if the width of the road to be constructed is less than or equal to the sum of the telescopic lengths of the first-stage telescopic ironing plate 2 and the second-stage telescopic ironing plate 8, no lengthening section needs to be additionally arranged;
step 2), for the construction width of the lengthening support device of the telescopic screed plate, fixedly mounting an lengthening section 4 at the outer end of the secondary telescopic screed plate 8, wherein the mounting length of the lengthening section 4, and the sum of the extension lengths of the primary telescopic screed plate 2 and the secondary telescopic screed plate 8 are greater than the maximum width of the road to be constructed; the telescopic length of the secondary telescopic ironing plate 8 is adjusted to the optimal working length, the support adjusting assembly 1 is fixedly connected between the outer side plate of the primary telescopic ironing plate 2 and the adjusting end plate 3, the installation length of the support adjusting assembly 1 is adjusted, and the secondary telescopic oil cylinder 513 is locked;
and step 3), the secondary telescopic oil cylinder 513 is in a locking state in the construction process, and for different width positions, the construction of roads with different widths is realized by adjusting the telescopic length of the primary telescopic screed plate.
This application is provided with distance detector 6 on the flexible screed 2 of one-level, installs on the flexible screed 2 of one-level when first fixing support 12, and distance detector 6 can monitor whether extension strutting arrangement installs, if detect to install extension strutting arrangement, adjustment extension strutting arrangement distance and fixed back, then control solenoid valve prevents that the secondary oil cylinder is flexible, if do not install extension strutting arrangement, then the secondary oil cylinder is flexible freely. In the adjusting process, the secondary telescopic oil cylinder 513 is locked, the length of the telescopic adjusting rod 11 is fixed, the telescopic length of the secondary telescopic oil cylinder 513 is fixed, and the laying of different widths can be realized only by adjusting the telescopic length of the primary telescopic ironing plate 2. And when the biggest flexible length of one-level flexible screed 2 can not satisfy, adjust the flexible length of telescopic adjusting rod 11 and second grade telescopic cylinder 513 simultaneously, realize wholly laying length's regulation, this application adopts distance detector 6 to detect the installation condition of extension strutting arrangement, is convenient for adjust control in the work progress.
When the screed plate is used for paving in a large width, a supporting device needs to be installed for ensuring the construction quality. The first fixed support 12 is fixed on the side wall of the ironing plate by bolts, and the second fixed support 13 is fixed on the adjusting end plate 3; then, the fastening bolt 1112 on the supporting rod 1110 and the lengthening rod 1111 is loosened, the joint bearing 114 is installed in the pin shaft hole of the first rotating connection part 112, the stud end of the first rotating connection part 112 is screwed into the internal thread block 1113 at one end of the telescopic adjusting rod 11, and the locking nut 115 is screwed to prevent loosening in use; one end of the telescopic adjusting rod 11 is connected to the first fixed support 12 by a pin shaft 116; screwing one end of the stud of the second rotary connecting part 113 into the internal thread block 1113 at the other end of the telescopic adjusting rod 11, and screwing the locking nut 115 to prevent the second rotary connecting part from loosening again in use; the other end of the second rotation connecting portion 113 is connected to the second fixing support 13 by a pin 116; the length between the supporting rod 1110 and the extension rod 1111 is adjusted to provide a certain degree of downward pressure for the extension rod 1111, and then the supporting rod 1110 and the extension rod 1111 are locked through the fastening bolt 1112 to complete the fixed connection of the widening extension rod of the ironing board; when in use, the supporting and adjusting assembly 1 is a pre-connecting piece, namely, one end of the stud of the first rotating connecting part 112 is fixedly connected with the extension bar 1111 in a pre-tightening way, and the locking nut 115 is screwed to prevent loosening in use; one end of a stud of the second rotating connecting part 113 is fixedly connected with the supporting rod 1110 in a pre-tightening mode, the locking nut 115 is screwed to prevent looseness in use, during use, only the other end of the first rotating connecting part 112 needs to be rotatably connected with the first fixing support 12 through the pin shaft 116, the other end of the second rotating connecting part 113 is rotatably connected with the second fixing support 13 through the pin shaft 116, then the length between the supporting rod 1110 and the extension rod 1111 is adjusted, certain downward pressure is provided for the extension rod 1111, then the supporting rod 1110 and the extension rod 1111 are locked through the fastening bolt 1112, and fixed connection of the extension rod widened by the ironing board is completed.
In use, the length of the supporting device is timely adjusted according to different degrees of thermal deformation of the screed and working condition requirements, the rigidity of the screed under different working conditions is guaranteed to meet the use requirements, the paving compactness of the screed under large width is improved, and the overall improvement of the pavement construction quality is realized.
The supporting device effectively solves the problem of insufficient rigidity caused by the structure of the hydraulic one-level telescopic screed plate, automatically identifies whether the supporting device is installed or not by applying the distance sensor, controls the on-off of the hydraulic valve block, realizes the telescopic control of the secondary one-level telescopic screed plate under the large-width paving, and realizes the integral supporting effect on the screed plate by matching with the supporting and adjusting component, thereby improving the integral rigidity of the screed plate. Through the use of the device, the degree of compaction of the two-end paving material of the lower screed plate paved in a large width can be improved to a great extent, and then the overall pavement quality of the pavement is improved.
Claims (10)
1. The utility model provides a flexible screed extension strutting arrangement, a serial communication port, including the flexible screed of one-level (2), the flexible screed of second grade (8) and length-adjustable support adjusting part (1), flexible screed of second grade (8) are located the flexible screed of one-level (2) outside, flexible screed of one-level (2) are through the flexible hydro-cylinder drive of one-level, flexible screed of second grade (8) are through the flexible hydro-cylinder of second grade (513) drive, the one end and the flexible screed of one-level (2) outer panel fixed connection of support adjusting part (1), flexible screed of second grade (8) outer end fixedly connected with extension festival (4), the end fixing of extension festival (4) has regulation end plate (3), the other end and regulation end plate (3) fixed connection who props regulation assembly (1).
2. The lengthening support device for the telescopic screed according to claim 1, further comprising a hydraulic valve group (51) for controlling the secondary telescopic cylinder (513), wherein an oil inlet (510) of the hydraulic valve group (51) is connected with an oil outlet of the cylinder valve group (512) through an oil pipe, an oil outlet (511) of the hydraulic valve group (51) is connected with an oil inlet of the secondary telescopic cylinder (513) through an oil pipe, and an oil return port of the cylinder valve group (512) is connected with an oil outlet of the secondary telescopic cylinder (513) through an oil pipe.
3. The telescopic screed lengthening support device as claimed in claim 1, wherein the support adjusting assembly (1) comprises a telescopic adjusting rod (11), a first fixed support (12) and a second fixed support (13), one end of the telescopic adjusting rod (11) is rotatably connected with the first fixed support (12), the other end of the telescopic adjusting rod (11) is rotatably connected with the second fixed support (13), the first fixed support (12) is fixedly connected with an outer side plate of the primary telescopic screed (2), and the second fixed support (13) is fixedly connected with the adjusting end plate (3).
4. The telescopic screed lengthening support device as claimed in claim 3, wherein the first fixed support (12) is fixedly connected to an outer side plate of the first stage telescopic screed (2) through bolts, two lug plates with pin holes are arranged on the first fixed support (12), and one end of the telescopic adjusting rod (11) is rotatably connected with the lug plate on the first fixed support (12).
5. The extension screed supporting device according to claim 3, wherein the second fixing support (13) is welded or fixed on the adjusting end plate (3) through a bolt, an ear plate with a pin hole is arranged on the second fixing support (13), and the other end of the extension adjusting rod (11) is rotatably connected with the ear plate on the second fixing support (13) through a pin shaft.
6. A telescopic screed lengthening support device according to claim 3, characterised in that the telescopic adjustment lever (11) comprises an intermediate telescopic connection rod (111), a first rotation connection portion (112) and a second rotation connection portion (113), one end of the telescopic adjustment lever (11) is fixedly connected with one end of the first rotation connection portion (112), and the other end of the telescopic adjustment lever (11) is fixedly connected with one end of the second rotation connection portion (113).
7. The extendable screed plate lengthening support apparatus according to claim 6, wherein an inner thread block (1113) is provided at each end of the extendable adjusting lever (11), one end of the first rotary connecting portion (112) is fastened to the inner thread block (1113) at one end of the extendable adjusting lever (11) by a nut (115) after being threadedly connected, and one end of the second rotary connecting portion (113) is fastened to the inner thread block (1113) at the other end of the extendable adjusting lever (11) by a nut (115) after being threadedly connected.
8. The lengthening support device for the telescopic screed according to claim 6, wherein the other end of the first rotating connecting portion (112) is rotatably connected with the first fixed support (12) through a pin (116), a joint bearing (114) is arranged at the position where the first rotating connecting portion (112) is rotatably connected with the first fixed support (12), the other end of the second rotating connecting portion (113) is rotatably connected with the second fixed support (13) through a pin (116), and a joint bearing (114) is arranged at the position where the second rotating connecting portion (113) is rotatably connected with the second fixed support (13).
9. The extendable screed plate lengthening support device according to claim 3, wherein the extendable adjusting lever (11) comprises a supporting lever (1110) and an extension lever (1111), one end of the supporting lever (1110) is a through hole, one end of the extension lever (1111) is disposed in the through hole of the supporting lever (1110), and a fastening bolt (1112) for fastening is disposed on a side wall of the supporting lever (1110).
10. A construction method of a telescopic screed based on the telescopic screed lengthening support device of claim 2, characterized by comprising the steps of:
step 1), for the construction width of a lengthening support device of a telescopic screed plate needing to be additionally installed, fixedly installing a lengthening section at the outer end of a secondary telescopic screed plate, wherein the additionally installed length of the lengthening section, and the sum of the telescopic lengths of a primary telescopic screed plate and a secondary telescopic screed plate are greater than the maximum width of a road to be constructed;
step 2), adjusting the telescopic length of the secondary telescopic ironing plate and the fixed installation length of the support adjusting assembly at the same time, and locking the support adjusting assembly and the secondary telescopic oil cylinder;
and 3) adjusting the telescopic length of the first-stage telescopic ironing plate to meet the construction width for different construction road widths in the construction process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010524263.8A CN111648211A (en) | 2020-06-10 | 2020-06-10 | Telescopic screed plate lengthening support device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010524263.8A CN111648211A (en) | 2020-06-10 | 2020-06-10 | Telescopic screed plate lengthening support device and construction method |
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| CN111648211A true CN111648211A (en) | 2020-09-11 |
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| CN202010524263.8A Pending CN111648211A (en) | 2020-06-10 | 2020-06-10 | Telescopic screed plate lengthening support device and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944089A (en) * | 2021-12-04 | 2022-01-18 | 李维维 | Super-wide construction supporting arm of pavement maintenance equipment and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113944089A (en) * | 2021-12-04 | 2022-01-18 | 李维维 | Super-wide construction supporting arm of pavement maintenance equipment and using method |
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Application publication date: 20200911 |
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