Paver and rear ironing device thereof

Abstract

The paver comprises the rear ironing device, the rear ironing device is installed at the rear end of the paver and comprises a rear ironing frame, a rear ironing main machine and a plurality of rear ironing lengthening mechanisms, the rear ironing main machine and the rear ironing lengthening mechanisms are installed on the rear ironing frame, the rear ironing lengthening mechanisms are arranged on the two sides of the rear ironing main machine, and the adjacent rear ironing lengthening mechanisms are sequentially connected; the rear ironing extension mechanism adjacent to the rear ironing host is connected with the rear ironing host; the rear ironing lengthening mechanism comprises a lengthening stand column which is installed on the rear ironing frame and is far away from one end of a main machine frame of the rear ironing main machine. The two ends of the supporting bars of the rear ironing lengthening mechanisms adjacent to the two sides of the rear ironing main machine are connected with the main machine frame and the lengthening stand columns respectively or connected with the rear ironing frame and the main machine frame respectively; the two ends of the supporting bars of the adjacent rear ironing lengthening mechanisms are connected with the lengthening stand columns respectively or connected with the lengthening stand columns and the rear ironing frame respectively.

Description

Technical Field

[0001] This utility model relates to road paving machine technology, and in particular to a paver and its rear screed device. Background Technology

[0002] A paver is a construction device used on highways, primarily for paving various materials for the base and surface layers of a road. During the paving process, the screed's main function is to initially compact and smooth the materials within the paving chamber. As the component within the paver that directly lays the various layers of road material, the performance of the screed directly affects the quality of the paved road surface, making it an extremely important part of the paver's operation. Among these factors, the rigidity of the screed has a crucial impact on the quality of the paved road surface, but the existing screed structure cannot meet the required rigidity. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a paver and its post-ironing device in response to the above-mentioned defects of the prior art.

[0004] To achieve the above objectives, this utility model provides a rear ironing device, installed at the rear end of a paver, including a rear ironing frame, a rear ironing main unit mounted on the rear ironing frame, and multiple rear ironing extension mechanisms. The rear ironing extension mechanisms are arranged on both sides of the rear ironing main unit, with adjacent rear ironing extension mechanisms connected sequentially; the rear ironing extension mechanism immediately adjacent to the rear ironing main unit is connected to the rear ironing main unit; wherein, the rear ironing extension mechanism includes:

[0005] An extension column is installed on the rear ironing rack, at the end of the main frame away from the rear ironing machine; and

[0006] Multiple support bars are provided. The two ends of the support bars of the rear ironing extension mechanism located on both sides of the rear ironing main unit are connected to the main unit frame and the extension column, or to the rear ironing frame and the main unit frame, respectively. The two ends of the support bars of the adjacent rear ironing extension mechanism are connected to the extension column, or to the extension column and the rear ironing frame, respectively.

[0007] The aforementioned post-ironing device, wherein the plurality of support bars includes:

[0008] The first support rod, with its two ends adjacent to both sides of the rear ironing main unit, is connected to the upper end of the first extension column near the main unit frame and the upper end of the main unit frame, respectively; the two ends of the first support rods of the sequentially connected rear ironing extension mechanism are connected to the upper ends of the adjacent extension columns, respectively; and

[0009] The reinforcing struts, located adjacent to both sides of the rear ironing main unit, have their ends connected to the upper ends of the first extension column and the upper end of the main unit frame, respectively; the reinforcing struts of the sequentially connected rear ironing extension mechanism have their ends connected to the upper ends of the adjacent extension columns, respectively.

[0010] The aforementioned post-ironing device, wherein the plurality of support bars further includes:

[0011] The two ends of the second support bar, which are adjacent to both sides of the rear ironing main unit, are respectively connected to the middle of the rear ironing frame and the main unit frame near the bottom of the first extension column; the two ends of the second support bar of the sequentially connected rear ironing extension mechanism are respectively connected to the middle of the rear ironing frame near the bottom of another extension column and the adjacent extension column.

[0012] The aforementioned post-ironing device, wherein the plurality of support bars further includes:

[0013] The two ends of the third support bar, which is adjacent to both sides of the rear ironing main unit, are respectively connected to the middle of the rear ironing frame and the main unit frame near the bottom of the first extension column; the two ends of the third support bar of the sequentially connected rear ironing extension mechanism are respectively connected to the middle of the rear ironing frame near the bottom of another extension column and the adjacent extension column.

[0014] In the aforementioned post-ironing device, the reinforcing support bar is arranged parallel to or at an angle to the first support bar, and the distance between the end of the second support bar and the third support bar near the first extended column is greater than the distance between the end connected to the main frame.

[0015] In the aforementioned post-ironing device, a first triangular support structure is formed between the second support rod and the third support rod, a second triangular support structure is formed between the first support rod and the second support rod, and a third triangular support structure is formed between the reinforcing support rod and the third support rod.

[0016] In the aforementioned post-ironing device, the first support rod includes a support rod, a locking nut, and a connector. The locking nut is installed at both ends of the support rod. One end of the connector is connected to the locking nut, and the other end of the connector is connected to the extension column or the main frame via a pin. The two ends of the support rod bear the pressure between the first extension column and the main frame, or the two ends of the support rod bear the pressure between adjacent extension columns.

[0017] In the aforementioned post-ironing device, the reinforcing support bar includes a reinforcing support rod, a reinforcing anti-loosening nut, a spherical bearing, and a reinforcing joint. The reinforcing anti-loosening nut is installed at both ends of the reinforcing support rod. Both ends of the reinforcing joint are respectively connected to the reinforcing anti-loosening nut and the spherical bearing. The spherical bearing is connected to the extension column or the main frame via a pin. The two ends of the reinforcing support rod bear the tension between the first extension column and the main frame, or the two ends of the reinforcing support rod bear the tension between adjacent extension columns.

[0018] The aforementioned post-ironing device further includes a post-ironing end mechanism, which is connected to the last post-ironing extension mechanism.

[0019] To better achieve the above objectives, this utility model also provides a paver, which includes the aforementioned rear screed device.

[0020] The beneficial effects of this utility model are as follows:

[0021] In this invention, the first support rod and the reinforcing support rod of the rear ironing device act together on the connecting pin of the extension column with supporting force and tensile force, respectively, which can effectively eliminate the influence of gap and enhance the connection stability of the rear ironing device.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a paver structure according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a rear ironing device according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the rear ironing device structure according to another embodiment of the present invention;

[0026] Figure 4 for Figure 3 Top view;

[0027] Figure 5 This is a top view of a portion of the structure of the rear ironing device according to another embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the post-ironing and extension mechanism according to an embodiment of the present invention.

[0029] Figure 7 for Figure 6 Enlarged view of part A;

[0030] Figure 8 for Figure 6 Enlarged view of part B;

[0031] Figure 9 This is a schematic diagram of the first support structure according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of a reinforcing strut structure according to an embodiment of the present invention.

[0033] Among them, the attached figures are labeled

[0034] 1 rack

[0035] 11. Screwdriver front baffle

[0036] 2. Walking device

[0037] 3. Boom assembly

[0038] 4. Rear ironing device

[0039] 41. Rear ironing rack

[0040] 42. Iron the main unit after use.

[0041] 421 Mainframe Rack

[0042] 43. Post-ironing and extension mechanism

[0043] 431 Extended column

[0044] 432 First support bar

[0045] 4321 Support rod

[0046] 4322 Anti-loosening nut

[0047] 4323 connector

[0048] 433 Second support bar

[0049] 434 Third support bar

[0050] 435 Reinforced Support Bar

[0051] 4351 Reinforced Support Rod

[0052] 4352 Reinforced Anti-loosening Nut

[0053] 4353 Spherical Plain Bearing

[0054] 4354 Reinforced Connector

[0055] 44. Post-ironing end mechanism

[0056] 5. Lifting cylinder

[0057] 6. Leveling cylinder

[0058] 7. Rammer front baffle Detailed Implementation

[0059] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0060] See Figure 1 , Figure 1 This is a schematic diagram of a paver structure according to an embodiment of the present invention. The paver includes a frame 1 and a traveling device 2, a boom device 3, and a rear screed device 4 mounted on the frame 1. The boom device 3 has a structure on the paver for connecting to and controlling the rear screed device 4. It is mounted on both sides of the frame 1 via lifting cylinders 5 and leveling cylinders 6. The lifting cylinders 5 control the height of the boom device 3 and the rear screed device 4, and the leveling cylinders 6 control the pitch of the boom device 3 to maintain horizontality. A front auger baffle 11 is located at the rear of the frame 1, and a front tamping hammer baffle 7 is located in front of the rear screed device 4, forming a material trough with a width of L between the two baffles. Since the composition, structure, relative positions, connections, and functions of other parts of the paver are all mature existing technologies, they will not be described in detail here. Only the rear screed device 4 of the present invention will be described in detail below.

[0061] See Figures 2-5 , Figure 2 This is a schematic diagram of the structure of the rear ironing device 4 according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the four-part structure of the rear ironing device according to another embodiment of the present invention. Figure 4 for Figure 3 Top view, Figure 5This is a top view of a portion of the structure of the rear ironing device 4 according to another embodiment of the present invention. The rear ironing device 4 of the present invention is installed at the rear end of a paver and includes a rear ironing frame 41, a rear ironing main unit 42 mounted on the rear ironing frame 41, multiple rear ironing extension mechanisms 43, and a rear ironing end mechanism 44. The rear ironing extension mechanisms 43 are arranged on both sides of the rear ironing main unit 42, and adjacent rear ironing extension mechanisms 43 are connected sequentially. That is, the rear ironing main unit 42 is in the middle of the rear ironing device 4, and the rear ironing extension mechanisms 43 extend outwards along both ends of the rear ironing main unit 42. The number and extension length of the rear ironing extension mechanisms 43 can be adjusted according to the specific construction width requirements. The rear ironing extension mechanisms 43 adjacent to the rear ironing main unit 42 are connected to the rear ironing main unit 42. The rear ironing end mechanism 44... The structure 44 is connected to the rear ironing extension mechanism 43 at the very end. The front end of the rear ironing frame 41 is provided with a tamping hammer front baffle. The rear ironing extension mechanism 43 includes: an extension column 431, which is installed on the rear ironing frame 41 and is located away from the main frame 421 of the main ironing host 42; and a plurality of support bars. The two ends of the support bars of the rear ironing extension mechanism 43 on both sides of the rear ironing host 42 are respectively connected to the main frame 421 and the extension column 431, or respectively connected to the rear ironing frame 41 and the main frame 421; the two ends of the support bars of the adjacent rear ironing extension mechanism 43 are respectively connected to the extension column 431, or respectively connected to the extension column 431 and the rear ironing frame 41.

[0062] In this embodiment, the plurality of support bars include: a first support bar 432, the two ends of the first support bar 432 adjacent to both sides of the rear ironing main unit 42 being connected to the upper end of the first extension column 431 near the main unit frame 421 and the upper end of the main unit frame 421, respectively; the two ends of the first support bar 432 of the sequentially connected rear ironing extension mechanism 43 being connected to the upper end of the adjacent extension column 431, respectively; and a reinforcing support bar 435, the two ends of the reinforcing support bar 435 adjacent to both sides of the rear ironing main unit 42 being connected to the upper end of the first extension column 431 and the upper end of the main unit frame 421, respectively; the two ends of the reinforcing support bar 435 of the sequentially connected rear ironing extension mechanism 43 being connected to the upper end of the adjacent extension column 431, respectively.

[0063] See Figure 6 , Figure 6This is a schematic diagram of the rear ironing extension mechanism according to an embodiment of the present invention. In this embodiment, the plurality of support bars further includes: a second support bar 433, the two ends of the second support bar 433 adjacent to both sides of the rear ironing main unit 42 are respectively connected to the middle of the rear ironing frame 41 and the main unit frame 421 near the bottom of the first extension column 431; the two ends of the second support bar 433 of the sequentially connected rear ironing extension mechanism 43 are respectively connected to the middle of the rear ironing frame 41 near the bottom of another extension column 431 and the middle of the adjacent extension column 431.

[0064] The plurality of support bars may also include a third support bar 434, the two ends of the third support bar 434 adjacent to both sides of the rear ironing main unit 42 being connected to the middle of the rear ironing frame 41 and the main unit frame 421 near the bottom of the first extension column 431, respectively; the two ends of the third support bar 434 of the sequentially connected rear ironing extension mechanism 43 are connected to the middle of the rear ironing frame 41 near the bottom of another extension column 431 and the adjacent extension column 431, respectively.

[0065] The reinforcing strut 435 is arranged parallel to or at an angle to the first strut 432. The distance between the ends of the second strut 433 and the third strut 434 closest to the first extended column 431 is greater than the distance between their ends connected to the main frame 421. The second strut 433 and the third strut 434 form a first triangular support structure, the first strut 432 and the second strut 433 form a second triangular support structure, and the reinforcing strut 435 and the third strut 434 form a third triangular support structure.

[0066] See Figures 7-9 , Figure 7 for Figure 6 Enlarged view of part A, Figure 8 for Figure 6 Enlarged view of part B, Figure 9 This is a schematic diagram of the first support rod 432 according to an embodiment of the present invention. The first support rod 432 in this embodiment includes a support rod 4321, a locking nut 4322, and a connector 4323. The locking nut 4322 is installed at both ends of the support rod 4321. One end of the connector 4323 is connected to the locking nut 4322, and the other end of the connector 4323 is connected to the extension column 431 or the main frame 421 via a pin. Figure 4 and Figure 5 As shown by the middle arrow, in the rear ironing extension device adjacent to the rear ironing main unit 42, the two ends of the support rod 4321 bear the pressure between the first extension column 431 and the main unit frame 421, respectively. In other rear ironing extension devices connected in sequence, the two ends of the support rod 4321 bear the pressure between the adjacent extension columns 431, respectively.

[0067] See Figure 10 , Figure 10 This is a schematic diagram of the reinforcing support bar 435 according to an embodiment of the present invention. The reinforcing support bar 435 in this embodiment includes a reinforcing support rod 4351, a reinforcing anti-loosening nut 4352, a spherical bearing 4353, and a reinforcing joint 4354. The reinforcing anti-loosening nut 4352 is installed at both ends of the reinforcing support rod 4351. Both ends of the reinforcing joint 4354 are respectively connected to the reinforcing anti-loosening nut 4352 and the spherical bearing 4353. The spherical bearing 4353 is connected to the extension column 431 or the main frame 421 via a pin. Figure 7 and Figure 8 As shown by the middle arrow, in the rear ironing extension device immediately adjacent to the rear ironing main unit 42, the two ends of the reinforcing support rod 4351 respectively bear the tension between the first extension column 431 and the main unit frame 421. In other sequentially connected rear ironing extension devices, the two ends of the reinforcing support rod 4351 respectively bear the tension between adjacent extension columns 431. The structures of the second support rod 433 and the third support rod 434 can be the same as the structure of the first support rod 432, or one of the second support rod 433 and the third support rod 434 can have the same structure as the reinforcing support rod 435, while the other has the same structure as the first support rod 432.

[0068] When the paver is working, it will drag the rear screed host 42 and move the entire rear screed device 4 forward together. As it approaches the end of the rear screed device 4, the rear screed frame 41 is prone to deformation. In order to reduce the impact of deformation on the rear screed device 4, the rear screed extension mechanism 43 can be extended by a certain distance. Extension columns 431 can be set on the rear screed frame 41 and connected by multiple struts to maintain the screed rigidity and stability.

[0069] In this embodiment, the support bars are respectively connected to the top and bottom of the extended column 431 on the ironing rack, forming a triangular support structure with the extended column 431. The lower second support bar 433 and third support bar 434 also use a triangular structure to connect the ends of the support bars to the front and rear positions of the ironing rack to prevent the ironing rack from twisting and deforming.

[0070] Since the connection of multiple support rods is a pin connection, there are gaps, which can easily lead to a decrease in rigidity. The first support rod 432 and the reinforcing support rod 435 of this utility model act on the connecting pin of the extension column 431 with supporting force and tensile force respectively, which can effectively eliminate the influence of gaps and enhance the connection stability of the ironing device 4.

[0071] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A rear ironing device, installed at the rear end of a paver, comprising a rear ironing frame, a rear ironing main unit mounted on the rear ironing frame, and a plurality of rear ironing extension mechanisms, wherein the rear ironing extension mechanisms are arranged on both sides of the rear ironing main unit, and adjacent rear ironing extension mechanisms are sequentially connected; the rear ironing extension mechanism immediately adjacent to the rear ironing main unit is connected to the rear ironing main unit; characterized in that, The post-ironing and extension mechanism includes: An extension column is installed on the rear ironing rack, at the end of the main frame away from the rear ironing machine; and Multiple support bars are provided. The two ends of the support bars of the rear ironing extension mechanism located on both sides of the rear ironing main unit are connected to the main unit frame and the extension column, or to the rear ironing frame and the main unit frame, respectively. The two ends of the support bars of the adjacent rear ironing extension mechanism are connected to the extension column, or to the extension column and the rear ironing frame, respectively.

2. The post-ironing device as described in claim 1, characterized in that, The plurality of support bars includes: The first support rod, with its two ends adjacent to both sides of the rear ironing main unit, is connected to the upper end of the first extension column near the main unit frame and the upper end of the main unit frame, respectively; the two ends of the first support rods of the sequentially connected rear ironing extension mechanism are connected to the upper ends of the adjacent extension columns, respectively; and The reinforcing struts, located adjacent to both sides of the rear ironing main unit, have their ends connected to the upper ends of the first extension column and the upper end of the main unit frame, respectively; the reinforcing struts of the sequentially connected rear ironing extension mechanism have their ends connected to the upper ends of the adjacent extension columns, respectively.

3. The post-ironing device as described in claim 2, characterized in that, The plurality of support bars also includes: The two ends of the second support bar, which are adjacent to both sides of the rear ironing main unit, are respectively connected to the middle of the rear ironing frame and the main unit frame near the bottom of the first extension column; the two ends of the second support bar of the sequentially connected rear ironing extension mechanism are respectively connected to the middle of the rear ironing frame near the bottom of another extension column and the adjacent extension column.

4. The post-ironing device as described in claim 3, characterized in that, The plurality of support bars also includes: The two ends of the third support bar, which is adjacent to both sides of the rear ironing main unit, are respectively connected to the middle of the rear ironing frame and the main unit frame near the bottom of the first extension column; the two ends of the third support bar of the sequentially connected rear ironing extension mechanism are respectively connected to the middle of the rear ironing frame near the bottom of another extension column and the adjacent extension column.

5. The post-ironing device as described in claim 4, characterized in that, The reinforcing strut is arranged parallel to or at an angle to the first strut, and the distance between the end of the second strut and the third strut closest to the first extended column is greater than the distance between the end connected to the main frame.

6. The post-ironing device as described in claim 4, characterized in that, The second and third support bars form a first triangular support structure, the first and second support bars form a second triangular support structure, and the reinforcing support bar and the third support bar form a third triangular support structure.

7. The post-ironing device as described in claim 2, characterized in that, The first support rod includes a support rod, a lock nut, and a connector. The lock nut is installed at both ends of the support rod. One end of the connector is connected to the lock nut, and the other end of the connector is connected to the extension column or the main frame via a pin. The two ends of the support rod bear the pressure between the first extension column and the main frame, or the two ends of the support rod bear the pressure between adjacent extension columns.

8. The post-ironing device as described in claim 2, characterized in that, The reinforcing strut includes a reinforcing support rod, a reinforcing anti-loosening nut, a spherical bearing, and a reinforcing joint. The reinforcing anti-loosening nut is installed at both ends of the reinforcing support rod. Both ends of the reinforcing joint are connected to the reinforcing anti-loosening nut and the spherical bearing, respectively. The spherical bearing is connected to the extension column or the main frame via a pin. Both ends of the reinforcing support rod bear the tension between the first extension column and the main frame, or both ends of the reinforcing support rod bear the tension between adjacent extension columns.

9. The post-ironing device as described in claim 1, characterized in that, It also includes a post-ironing end mechanism, which is connected to the last post-ironing extension mechanism.

10. A paver, characterized in that, Includes the post-ironing device as described in any one of claims 1-9.

Images