Asphalt paving joint rolling equipment

Abstract

The utility model relates to the technical field of asphalt paving equipment, and discloses an asphalt paving joint rolling equipment, including: a bracket; a steel wheel installed at the rear end of the bracket; a stirring device, a pump and a nozzle installed on the bracket, the stirring device including a stirring drum installed on the bracket, a stirring shaft rotatably connected in the stirring drum and a stirring blade installed on the stirring shaft, the input end of the pump is connected to the stirring drum through a first connecting pipe, the output end of the pump is connected to the nozzle through a second connecting pipe, and the nozzle faces the peripheral side of the steel wheel; and a power transmission component, which is used to transmit the power of the steel wheel rotation to the stirring shaft to drive the stirring shaft to rotate. The utility model does not require additional power to drive, and can drive the stirring shaft to rotate while the steel wheel rotates, so as to stir the isolation agent in real time, ensure that the oil substance and water are evenly mixed, and improve the use quality of the isolation agent.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt paving equipment, in particular to asphalt paving joint rolling equipment. Background Art

[0002] In the process of municipal road asphalt surface construction, two or more pavers are usually used for online operation for wider roads. However, this operation method has certain problems in actual operation. When two pavers work adjacently during the paving process, there will often be joints between them. For these joints, if the rolling process is unreasonable, the joints may cause road bumps and vehicle jumping. This phenomenon not only affects driving comfort, but also threatens vehicle safety.

[0003] The patent with publication number CN117802853A discloses an asphalt paving joint rolling device and an asphalt paving system. The asphalt paving joint rolling device can be mounted on the rear side of the asphalt paver, pulled by the asphalt paver to roll the paving joints, avoiding the quality problems caused by the roller's untimely rolling. The patent uses a water nozzle to spray water on the steel wheel to prevent the asphalt material from adhering to the steel wheel. However, under normal circumstances, during the construction process, an isolation agent is usually used on the steel wheel of the roller. The isolation agent is used to block the adhesion between the asphalt mixture and the transportation equipment. The isolation agent usually uses a mixture of diesel and water in a ratio of 1:3. There are also silicone oil, a mixture of a double-checked emulsifier and water, or a mixture of vegetable oil and water. The above isolation agents have many disadvantages. Since oil substances and water are insoluble in each other, when the oil substances and water are mixed unevenly, the concentrated spraying of oil substances will have a strong dissolving effect on the asphalt, destroying the asphalt film, causing the asphalt adhesion to decrease, the road surface quality to decrease, and the service life to shorten.

[0004] In view of this, how to design an asphalt joint paving and rolling equipment to change the current situation of uneven mixing during the use of the isolation agent in the prior art has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The utility model aims to provide an asphalt paving joint rolling device to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: an asphalt paving joint rolling equipment, comprising:

[0007] Bracket;

[0008] A steel wheel mounted on the rear end of the bracket;

[0009] A stirring device, a pump and a nozzle mounted on the bracket, wherein the stirring device comprises a stirring drum mounted on the bracket, a stirring shaft rotatably connected to the stirring drum and a stirring blade mounted on the stirring shaft, an input end of the pump is connected to the stirring drum through a first connecting pipe, an output end of the pump is connected to the nozzle through a second connecting pipe, and the nozzle faces the peripheral side of the steel wheel; and

[0010] The power transmission component is used to transmit the power of the steel wheel rotation to the stirring shaft to drive the stirring shaft to rotate.

[0011] Furthermore, the power transmission assembly comprises:

[0012] An annular rack mounted on the inner side wall of the steel wheel;

[0013] a first gear mounted on the bracket, the first gear meshing with the annular rack; and

[0014] A power transmission assembly, wherein the first gear is drivingly connected to the stirring shaft through the power transmission assembly.

[0015] Furthermore, the power transmission assembly comprises:

[0016] A second gear coaxially fixedly connected to the first gear; and

[0017] The stirring shaft passes through the stirring drum and is keyed to a third gear, and the third gear is meshed with the second gear.

[0018] Furthermore, a transmission ratio between the second gear and the third gear is less than 1.

[0019] Furthermore, it also includes a spray pipe installed on the bracket, the spray pipe is parallel to the axial direction of the steel wheel, the spray pipe is connected to the end of the second connecting pipe away from the pump, and a plurality of the spray heads are spaced apart along the length direction of the spray pipe.

[0020] Furthermore, a valve is installed on the first connecting pipe.

[0021] Furthermore, it also includes a scraper assembly installed on the bracket, and the scraper assembly is used to scrape off the asphalt mixture adhered to the outer surface of the steel wheel.

[0022] Furthermore, the scraper assembly comprises:

[0023] A scraper plate, one end of which is frictionally connected to the outer surface of the steel wheel;

[0024] A support plate fixedly connected to the bracket, a support shaft rotatably connected to the support plate, an axial direction of the support shaft being parallel to the axial direction of the steel wheel, and the support shaft being fixedly connected to the other end of the scraper plate; and

[0025] A tensioner is installed on the support plate, and the tensioner is used to provide the support shaft with a rotational force so as to achieve the fit between one end of the scraper plate and the outer surface of the steel wheel.

[0026] Furthermore, the tensioner comprises:

[0027] The two ends of the supporting shaft respectively penetrate the two supporting plates and are fixedly connected with a shaft sleeve, and the shaft sleeve is fixedly connected with a first tensioning plate, and the first tensioning plate is arranged along the radial direction of the shaft sleeve;

[0028] a second tensioning plate fixedly connected to the bracket; and

[0029] A tension spring with two ends respectively connected to the first tensioning plate and the second tensioning plate, wherein the tension spring is used to drive the support shaft to rotate so as to achieve the contact between one end of the scraper plate and the outer surface of the steel wheel.

[0030] Furthermore, it also includes a telescopic support rod installed at the front end of the bracket.

[0031] Compared with the prior art, the utility model has at least the following advantages:

[0032] The utility model is installed on the rear paver of the adjacent operation when in use, and can timely pre-press the joints during paving, so as to avoid the mixture at the joints from cooling down due to weather and other reasons, resulting in cracks due to poor bonding.

[0033] The utility model does not need additional power to drive, and can drive the stirring shaft to rotate as the steel wheel rotates, so as to stir the release agent in real time, ensure that the oil substance and water are mixed evenly, and improve the use quality of the release agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 This is a schematic diagram of the overall structure of the asphalt paving joint rolling equipment of the utility model;

[0036] Figure 2It is a schematic diagram of the overall structure of the asphalt paving joint rolling equipment of the utility model from another perspective;

[0037] Figure 3 It is a cross-sectional view of the asphalt paving joint rolling equipment of the utility model.

[0038] 1. Bracket; 2. Steel wheel; 3. Mixing drum; 4. Mixing shaft; 5. Mixing blade; 6. Pump; 7. First connecting pipe; 8. Second connecting pipe; 9. Spray pipe; 10. Spray head; 11. Ring rack; 12. First gear; 13. Second gear; 14. First rotating shaft; 15. Third gear; 16. Second rotating shaft; 17. Scraper plate; 18. Support plate; 19. Support rotating shaft; 20. Bushing; 21. First tensioning plate; 22. Second tensioning plate; 23. Tension spring; 24. Telescopic support rod; 25. Feed pipe; 26. Sealing cover. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] Reference Figure 1-3The utility model provides an asphalt paving joint rolling equipment, which is used to be connected to the rear of the paver to achieve joint rolling work during the asphalt mixture paving process. The specific structure includes a bracket 1, a steel wheel 2, a stirring device, a pump 6, a nozzle 10 and a power transmission component, wherein the bracket 1 is used as the basic frame of the entire equipment to support and fix other components. The steel wheel 2 is installed at the rear end of the bracket 1 to roll the asphalt pavement to ensure the flatness and density of the asphalt. The stirring device, the pump 6 and the nozzle 10 are installed on the bracket 1. The stirring device, the pump 6 and the nozzle 10 together constitute an isolation agent spraying system. The stirring device includes a stirring drum 3 installed on the bracket 1, a stirring shaft 4 rotatably connected in the stirring drum 3 and a stirring blade 5 installed on the stirring shaft 4, which is used to achieve uniform stirring of the isolation agent. The input end of the pump 6 is connected to the stirring drum 3 through the first connecting pipe 7, and the output end of the pump 6 is connected to the nozzle 10 through the second connecting pipe 8. The uniformly stirred isolation agent is transported to the nozzle 10 through the pump 6. The spray head 10 faces the peripheral side of the steel wheel 2, and sprays the isolation agent on the road surface in front of the steel wheel 2 through the pump 6. The power transmission component is used to transmit the power of the steel wheel 2 to the stirring shaft 4 to drive the stirring shaft 4 to rotate.

[0042] Preferably, the power transmission assembly includes an annular rack 11, a first gear 12 and a power transmission assembly. The annular rack 11 is mounted on the inner wall of the steel wheel 2, the inner ring of the annular rack 11 is provided with teeth, the bracket 1 is rotatably connected with a first rotating shaft 14, the first gear 12 is key-connected to the first rotating shaft 14 and meshes with the annular rack 11. The power transmission assembly drives the first gear 12 to the stirring shaft 4 to achieve power transmission.

[0043] Preferably, the power transmission assembly includes a second gear 13 and a third gear 15. Similarly, the second gear 13 is keyed to the first rotating shaft 14, and the second gear 13 is coaxially fixedly connected to the first gear 12; the stirring shaft 4 is arranged through the stirring drum 3, and the third gear 15 is keyed to the stirring shaft 4 and meshes with the second gear 13. In order to ensure a moderate stirring speed, the transmission ratio of the second gear 13 and the third gear 15 is less than 1.

[0044] During the asphalt paving joint rolling process, the steel wheel 2 rotates relative to the bracket 1, thereby driving the first gear 12 to rotate. The first gear 12 transmits power to the second gear 13 through the first rotating shaft 14, and then transmits it to the stirring shaft 4 through the third gear 15, thereby driving the stirring blade 5 to rotate, thereby achieving the effect of synchronous stirring of the isolation agent during the paving and rolling operation.

[0045] In addition, the rolling equipment of the utility model also includes a spraying pipe 9 and a valve. The spraying pipe 9 is installed on the bracket 1, and the spraying pipe 9 is parallel to the axial direction of the steel wheel 2. A plurality of nozzles 10 are arranged at intervals along its length direction for uniformly spraying the asphalt mixture. A valve (not shown in the figure) is installed on the first connecting pipe 7, and is used to control the supply or interruption of the release agent. A feed pipe 25 is installed at the upper end of the mixing drum 3, and the release agent can be poured into the mixing drum 3 through the feed pipe 25. The feed pipe 25 is detachably connected to a sealing cover 26 for realizing the opening or sealing of the feed pipe 25.

[0046] Preferably, the utility model further comprises a scraper assembly mounted on the bracket 1, and the scraper assembly is used to scrape off the asphalt mixture adhered to the outer surface of the steel wheel 2 to keep the surface of the steel wheel 2 clean.

[0047] Specifically, the scraper assembly includes a scraper plate 17, a support plate 18 and a tensioner. One end of the scraper plate 17 is frictionally connected to the outer surface of the steel wheel 2; the support plate 18 is fixedly connected to the bracket 1, and a support shaft 19 is rotatably connected to the support plate 18. The axial direction of the support shaft 19 is parallel to the axial direction of the steel wheel 2, and the support shaft 19 is fixedly connected to the other end of the scraper plate 17; the tensioner is installed on the support plate 18, and the tensioner is used to provide a rotational force to the support shaft 19 to achieve one end of the scraper plate 17 to fit the outer surface of the steel wheel 2.

[0048] Optionally, the tensioner includes a sleeve 20, a first tensioning plate 21, a second tensioning plate 22 and a tension spring 23. The two ends of the support shaft 19 respectively penetrate the two support plates 18 and are fixedly connected to two sleeves 20 correspondingly. The sleeve 20 is fixedly connected to the first tensioning plate 21, and the first tensioning plate 21 is arranged along the radial direction of the sleeve 20; the second tensioning plate 22 is fixedly connected to the support frame and arranged opposite to the first tensioning plate 21; the two ends of the tension spring 23 are respectively connected to the first tensioning plate 21 and the second tensioning plate 22, and the tension spring 23 is used to drive the support shaft 19 to rotate, so as to achieve that one end of the scraper plate 17 is in contact with the outer surface of the steel wheel 2.

[0049] In order to facilitate the storage and use of the rolling equipment of the utility model, the utility model further includes a telescopic support rod 24 installed at the front end of the bracket 1. When the equipment is in use, the telescopic support rod 24 is in a retracted state and does not contact the ground. At this time, the paver drives the steel wheel 2 to roll the asphalt mixture; when the equipment is stopped, the telescopic support rod is in an extended state and contacts the ground, and the telescopic support rod and the steel wheel 2 are in a stationary state.

[0050] Working principle of this utility model:

[0051] Before construction, the bracket 1 is fixed to the paver on the rear paver of the adjacent operation. When the front paver starts to pave asphalt concrete for about 10m to 30m, the paver installed with the rolling equipment of the utility model at the rear starts to test pave asphalt concrete. By adjusting the position, the center of the steel wheel of the rolling equipment falls as much as possible at the hot joint position, so as to achieve the effect of rolling as the pavement is carried out.

[0052] At the same time, the scraper plate 17 scrapes off the asphalt mixture adhered to the outer surface of the steel wheel 2 in real time to keep the surface of the steel wheel 2 clean. The mixing drum 3 stirs the isolation agent in real time as the steel wheel 2 rotates. The pump 6 pumps the isolation agent in the mixing drum 3 to the nozzle 10 to achieve the effect of evenly spraying the isolation agent on the surface of the steel wheel 2.

[0053] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An asphalt paving joint rolling equipment, characterized in that: include: Bracket (1); A steel wheel (2) mounted on the rear end of the bracket (1); A stirring device, a pump (6) and a nozzle (10) are mounted on the support (1), wherein the stirring device comprises a stirring drum (3) mounted on the support (1), a stirring shaft (4) rotatably connected to the stirring drum (3), and a stirring blade (5) mounted on the stirring shaft (4); the input end of the pump (6) is connected to the stirring drum (3) via a first connecting pipe (7), the output end of the pump (6) is connected to the nozzle (10) via a second connecting pipe (8), and the nozzle (10) faces the peripheral side of the steel wheel (2); as well as A power transmission component is used to transmit the power of the rotation of the steel wheel (2) to the stirring shaft (4), so as to drive the stirring shaft (4) to rotate.

2. The asphalt paving joint rolling equipment according to claim 1, characterized in that: The power transmission assembly comprises: an annular rack (11) mounted on the inner side wall of the steel wheel (2); a first gear (12) mounted on the bracket (1), the first gear (12) being meshed with the annular rack (11); and A power transmission component, wherein the first gear (12) is transmission-connected to the stirring shaft (4) via the power transmission component.

3. The asphalt paving joint rolling equipment according to claim 2 is characterized in that: The power transmission assembly comprises: a second gear (13) coaxially and fixedly connected to the first gear (12); and The stirring shaft (4) passes through the stirring drum (3) and is keyed to a third gear (15), and the third gear (15) is meshed with the second gear (13).

4. The asphalt paving joint rolling equipment according to claim 3 is characterized in that: The transmission ratio between the second gear (13) and the third gear (15) is less than 1.

5. The asphalt paving joint rolling equipment according to claim 1, characterized in that: It also includes a spray pipe (9) mounted on the bracket (1), the spray pipe (9) is parallel to the axial direction of the steel wheel (2), the spray pipe (9) is connected to the end of the second connecting pipe (8) away from the pump (6), and a plurality of the spray heads (10) are arranged at intervals along the length direction of the spray pipe (9).

6. The asphalt paving joint rolling equipment according to claim 5, characterized in that: A valve is installed on the first connecting pipe (7).

7. The asphalt paving joint rolling equipment according to claim 1, characterized in that: It also comprises a scraper assembly mounted on the bracket (1), and the scraper assembly is used to scrape off the asphalt mixture adhered to the outer surface of the steel wheel (2).

8. The asphalt paving joint rolling equipment according to claim 7, characterized in that: The scraper assembly comprises: A scraper plate (17), one end of which is frictionally connected to the outer surface of the steel wheel (2); a support plate (18) fixedly connected to the bracket (1), a support shaft (19) rotatably connected to the support plate (18), an axial direction of the support shaft (19) being parallel to the axial direction of the steel wheel (2), and the support shaft (19) being fixedly connected to the other end of the scraper plate (17); and A tensioner is installed on the support plate (18), and is used to provide a rotational force for the support shaft (19) so as to achieve a fit between one end of the scraper plate (17) and the outer surface of the steel wheel (2).

9. The asphalt paving joint rolling equipment according to claim 8, characterized in that: The tensioner comprises: The two ends of the support shaft (19) respectively penetrate the two support plates (18) and are fixedly connected to a shaft sleeve (20), and the shaft sleeve (20) is fixedly connected to a first tensioning plate (21), and the first tensioning plate (21) is arranged along the radial direction of the shaft sleeve (20); a second tensioning plate (22) fixedly connected to the bracket (1); and A tension spring (23) with two ends respectively connected to the first tensioning plate (21) and the second tensioning plate (22), wherein the tension spring (23) is used to drive the support shaft (19) to rotate so as to achieve the contact between one end of the scraper plate (17) and the outer surface of the steel wheel (2).

10. The asphalt paving joint rolling equipment according to claim 1, characterized in that: It also includes a telescopic support rod (24) installed at the front end of the bracket (1).

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