Spiral paver and paver

Abstract

The invention discloses a spiral paver and a paver, and relates to the technical field of road construction. The spiral paver comprises a supporting assembly connected to a fixing piece of the paver; the auger comprises a rotating shaft and a material distributing spiral blade, the rotating shaft is rotationally connected to the supporting assembly around a first axis, and the material distributing spiral blade is arranged on the rotating shaft in a winding mode along the first axis; the first spiral assembly comprises a first rotating part and a first spiral blade, the first rotating part is rotationally connected to the supporting assembly around a second axis, the first spiral blade is wound around the first rotating part along the second axis, and the second axis intersects with the first axis. In the process that the first spiral assembly rotates around the second axis in the set direction, the first spiral blade can drive the large aggregate sinking near the supporting assembly to move towards the side away from the roadbed to the middle or upper area of a material distribution groove of the paver, gradation is supplemented, and the large aggregate is evenly distributed. Segregation caused by gradation loss formed by sinking of large aggregates is prevented to a certain extent, and the paving uniformity of the aggregates is improved.

Description

Technical Field

[0001] This application relates to the technical field of road construction, and particularly relates to a spiral spreader and a paver. Background Art

[0002] A paver is an important piece of equipment for road construction, used to evenly spread aggregates such as asphalt, concrete, or stabilized soil on the roadbed to form a flat pre-compacted paving layer.

[0003] There are many specifications and models of pavers, and the structures of various types of pavers are not all the same, but their structures generally include: a frame, a power system (including an engine and a hydraulic transmission system), a traveling system, an electric control system, a material receiving and feeding system (including a front push roller, a material receiving hopper, a scraper feeder, and a spiral distributor), a leveling system, a screed device, and a spiral spreader (commonly known as a auger distribution system), etc. The spiral spreader is used to evenly distribute the aggregates conveyed by the material receiving and feeding system over the full width of the paver. Specifically, the spiral spreader spreads the aggregates by rotating the auger.

[0004] In order to ensure the stability of the auger, a suspension seat is usually provided in the middle area of the auger. The suspension seat is used to connect the auger and the screed device to support the auger. In the related art, aggregates are prone to segregation at the suspension seat, resulting in uneven spreading of the aggregates and affecting the spreading quality. Summary of the Invention

[0005] Based on this, this application provides a spiral spreader and a paver to solve the problem of uneven spreading of the spiral spreader in the related art.

[0006] In a first aspect, an embodiment of this application provides a spiral spreader, which is applied to a paver and includes:

[0007] A support assembly, connected to a fixing member of the paver;

[0008] An auger, including a rotating shaft and a distributing spiral blade, the rotating shaft is rotatably connected to the support assembly around a first axis, and the distributing spiral blade is wound around the rotating shaft along the first axis;

[0009] A first spiral assembly, including a first rotating member and a first spiral blade, the first rotating member is rotatably connected to the support assembly around a second axis, the first spiral blade is wound around the first rotating member along the second axis, and the second axis intersects the first axis.

[0010] In some embodiments, along the first axis, the projection of the distributing spiral blade and the projection of the first spiral blade have an overlapping area.

[0011] In some embodiments, the spiral spreader further includes a first driving member, and an output end of the first driving member is in transmission connection with the first rotating member for driving the first rotating member to rotate.

[0012] In some embodiments, the first rotating member is arranged along the height direction of the paver.

[0013] In some embodiments, at least a part of the first spiral blade is located outside the material distribution spiral blade along the radial direction of the rotating shaft.

[0014] In some embodiments, the support assembly includes:

[0015] A support base connected to the fixing member;

[0016] A rotating base rotatably connected to the rotating shaft;

[0017] A cantilever connected to the support base and the rotating base, and the first rotating member is sleeved outside the cantilever and rotatably connected to the cantilever.

[0018] In some embodiments, the spiral spreader further includes a second spiral assembly, and the second spiral assembly includes:

[0019] A second rotating member rotatably connected to the support assembly around a third axis, and the second rotating member and the first rotating member are respectively located on opposite sides of the rotating shaft along the radial direction, and the third axis intersects the first axis;

[0020] A second spiral blade wound around the second rotating member along the third axis.

[0021] In some embodiments, along the first axis, the projections of the material distribution spiral blade and the second spiral blade have an overlapping area.

[0022] In some embodiments, the spiral spreader further includes a second driving member, and an output end of the second driving member is in transmission connection with the second rotating member for driving the second rotating member to rotate.

[0023] In some embodiments, the second rotating member is arranged along the height direction of the paver.

[0024] In some embodiments, at least a part of the second spiral blade is located outside the material distribution spiral blade along the radial direction of the rotating shaft.

[0025] In some embodiments, the support assembly includes:

[0026] A support base connected to the fixing member;

[0027] A rotating base rotatably connected to the rotating shaft;

[0028] The cantilever is connected to the support base and the rotating base. The first rotating member is sleeved outside the cantilever and is rotatably connected to the cantilever.

[0029] The boom. The boom and the cantilever are respectively located on two opposite sides of the rotating shaft in the radial direction. The boom is connected to the rotating base. The second rotating member is sleeved outside the boom and is rotatably connected to the boom.

[0030] In a second aspect, an embodiment of the present application provides a paver, including the spiral paver described in the first aspect.

[0031] For the spiral paver provided by the present application, as the auger rotates, the aggregate is evenly distributed over the full width of the paver. During the rotation of the first spiral assembly along a set direction around the second axis, the first spiral blade can drive the large aggregate sinking near the support assembly to move toward the side away from the roadbed, and move to the middle or upper region of the material distribution tank of the paver to supplement the gradation. To a certain extent, it prevents the segregation caused by the loss of gradation due to the sinking of large aggregates, improves the uniformity of aggregate paving, and ensures the paving quality. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a schematic structural diagram of the spiral paver in one or more embodiments of the present application;

[0034] Figure 2 For Figure 1 The enlarged view at A in

[0035] Figure 3 For the Figure 1 Cross-sectional view taken along the B-B direction in

[0036] Figure 4 It is a schematic structural diagram of the support assembly of the spiral paver in one or more embodiments of the present application.

[0037] Description of the Reference Numerals:

[0038] 100 - Screw paver; 110 - Support assembly; 111 - Support base; 112 - Rotating seat; 113 - Cantilever; 114 - Suspension arm; 120 - Auger; 121 - Rotating shaft; 122 - Distributing screw blades; 120a - First axis; 120b - Second rotation direction; 130 - First screw assembly; 131 - First rotating member; 132 - First screw blades; 130a - Second axis; 130b - First rotation direction; 140 - Second screw assembly; 141 - Second rotating member; 142 - Second screw blades; 140a - Third axis; 140b - Third rotation direction; 200 - Fixing member. Detailed implementation mode

[0039] To make the objectives, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The described embodiments are some but not all of the embodiments of this application. The embodiments described below by referring to the drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the drawings.

[0040] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] The terms "first", "second", "third" (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0043] In addition, the terms "comprising", "having", and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or display that comprises a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or displays.

[0044] In the related art, in order to ensure the stability of the auger, a suspension seat is usually provided in the middle region of the auger. The suspension seat is used to connect the auger and the ironing device and plays a role in supporting the auger. After the suspension seat is provided, the aggregate is likely to segregate at the suspension seat, resulting in uneven paving of the aggregate and affecting the paving quality. Segregation means that the large aggregate in the aggregate is not evenly and fully wrapped by the small aggregate, and the texture of the aggregate is uneven after hardening.

[0045] After repeated thinking and verification, the inventor found that due to the existence of the suspension seat, the feeding spiral blade of the auger is discontinuous at the suspension seat, resulting in poor mixing effect near the suspension seat. And due to the blockage of the aggregate by the suspension seat, large aggregates are locally deposited near the suspension seat, resulting in segregation.

[0046] In view of this, the inventor designed a spiral spreader 100 and a paver. By adding a first spiral component 130 to the support component 110 of the spiral spreader 100, the large aggregates sinking near the support component 110 can move upward under the pushing action of the first spiral component 130, move to the middle or upper region of the feeding trough of the paver, supplement the gradation, prevent segregation caused by the sinking of large aggregates and the resulting loss of gradation to a certain extent, and ensure that the aggregate is evenly paved on the roadbed.

[0047] The following describes in detail the spiral spreader 100 and the paver provided by the embodiments of the present application with reference to the accompanying drawings.

[0048] As Figure 1 、 Figure 2 and Figure 3 shown, the spiral spreader 100 is applied to a paver. The spiral spreader 100 includes a support component 110, an auger 120, and a first spiral component 130. The support component 110 is connected to a fixing member 200 of the paver. The auger 120 includes a rotating shaft 121 and a feeding spiral blade 122. The rotating shaft 121 is rotatably connected to the support component 110 about a first axis 120a, and the feeding spiral blade 122 is wound around the rotating shaft 121 along the first axis 120a. The first spiral component 130 includes a first rotating member 131 and a first spiral blade 132. The first rotating member 131 is rotatably connected to the support component 110 about a second axis 130a, and the first spiral blade 132 is wound around the first rotating member 131 along the second axis 130a. The second axis 130a intersects the first axis 120a.

[0049] It can be understood that the spiral spreader 100 may further include components such as a driving member and a auger support. The auger support is used to support the rotating shaft 121 of the auger 120. Both ends of the rotating shaft 121 are rotatably connected to the auger support around the first axis 120a. The distributing spiral blade 122 of the auger 120 is fixedly connected to the rotating shaft 121, and can be fixedly connected by means such as clamping, welding, and bolt connection, which is not limited herein. The driving member is installed on the auger support, and the driving member drives the rotating shaft 121 of the auger 120 to rotate around the first axis 120a, and the rotating shaft 121 drives the distributing spiral blade 122 to rotate around the first axis 120a. The driving member can be a motor or the like.

[0050] When the spiral spreader 100 is in use, the rotating shaft 121 of the auger 120 is usually horizontally arranged, that is, the first axis 120a is usually horizontally arranged. When the rotating shaft 121 rotates, the distributing spiral blade 122 evenly distributes the aggregate conveyed by the receiving and conveying system of the spreader to the full width of the paver.

[0051] The fixing member 200 of the paver refers to a component fixed relative to the rotating shaft 121, such as an auger support, a screed plate of a screeding device, etc., which is not limited in this application. Those skilled in the art can connect the support assembly 110 to the corresponding component according to specific circumstances.

[0052] The support assembly 110 is fixedly connected to the fixing member 200, and can be fixedly connected by means such as clamping, welding, and bolt connection. When the auger 120 rotates, the support assembly 110 does not rotate with the auger 120.

[0053] The first spiral blade 132 and the first rotating member 131 are fixedly connected, and can be fixedly connected by means such as clamping, welding, and bolt connection, which is not limited herein.

[0054] The first rotating member 131 is rotatably connected to the support assembly 110 around the second axis 130a. The intersection of the second axis 130a and the first axis 120a means that the second axis 130a and the first axis 120a are arranged at an angle, which can be a right angle, an acute angle or an obtuse angle, which is not limited in this application.

[0055] It should be understood that when the spiral paver 100 is in use, the first spiral blade 132 extends into the aggregate, and the second axis 130a has a projected component in the height direction of the paver. In other words, when the spiral paver 100 is in use, the second axis 130a cannot be arranged horizontally. In other words, the second axis 130a must be arranged at a right angle, an acute angle, or an obtuse angle with the horizontal plane. This arrangement allows the first spiral blade 132 to drive the aggregate toward the side away from the roadbed as the first spiral assembly 130 rotates about the second axis 130a in the first rotation direction 130b.

[0056] like Figure 3 As shown, when the auger 100 is in use, the first auger assembly 130 rotates about the second axis 130a in a first rotational direction 130b. The first auger assembly 130 can be driven by a first rotating member, such as a motor, or can be driven by the aggregate. When the first auger assembly 130 is driven by a first rotating member, such as a motor, the motor can be mounted on the support assembly 110, with the motor output shaft fixedly connected to the first rotating member 131 of the first auger assembly 130. Alternatively, the motor output shaft can be connected to the first auger assembly 130 via a transmission member, such as a gear, so that the motor output shaft drives the first rotating member 131. When the auger 120 rotates about the first axis 120a in the second rotational direction 120b, the aggregate, driven by the auger 120, moves along the width of the paving machine. During this movement, the aggregate can exert a force on the first auger blade 132, thereby pushing the first auger blade 132, causing it to rotate in the first rotational direction 130b. The first rotation direction 130b can be clockwise or counterclockwise. The first rotation direction 130b is related to the rotation direction of the first spiral blade 132 and is not limited in this application. Similarly, the second rotation direction 120b can be clockwise or counterclockwise. The second rotation direction 120b is related to the rotation direction of the material-distributing spiral blade 122 and is not limited in this application.

[0057] The spiral paver 100 provided in the present application drives the aggregate to be evenly distributed over the full width of the paver by rotating the auger 120. During the rotation of the first spiral component 130 about the second axis 130a in the first rotation direction 130b, the first spiral blade 132 drives the large aggregate sunk by the support component 110 to move toward the side away from the roadbed, that is, Figure 2 As shown, it moves upward to the middle or upper area of the paver's distribution trough to supplement the grading, which to a certain extent prevents the segregation caused by the sinking of large aggregates and the loss of grading, improves the uniformity of aggregate paving, and ensures the paving quality.

[0058] In some embodiments, along the first axis 120a, the projection of the material distributing spiral blade 122 and the projection of the first spiral blade 132 have an overlapping area.

[0059] That is to say, the projection of the material distributing spiral blade 122 along the first axis 120a and the projection of the first spiral blade 132 along the first axis 120a at least partially overlap, and at least a part of the first spiral blade 132 is located in the spiral groove 122c formed by the material distributing spiral blade 122. When paving the aggregate, it mainly relies on the material distributing spiral blade 122 to push. To a certain extent, the thrust received by the aggregate located in the spiral groove 122c is greater than the thrust received by the aggregate located outside the spiral groove 122c. In these embodiments, by arranging at least a part of the first spiral blade 132 in the spiral groove 122c, when the aggregate with a larger thrust in the spiral groove 122c is pushed by the material distributing spiral blade 122, it can better push the first spiral blade 132 to rotate around the second axis 130a in the first rotation direction 130b. Thus, when the auger 120 rotates around the first axis 120a in the second rotation direction 120b to pave the aggregate, the first spiral blade 132 can be pushed by the aggregate to rotate around the second axis 130a in the first rotation direction 130b. In these embodiments, the first spiral blade 132 is rotated by the aggregate, and there is no need to provide a driving member such as a motor to drive the first spiral blade 132, which simplifies the structure of the spiral paver 100, reduces the energy consumption of the spiral paver 100, and facilitates the use of the spiral paver 100.

[0060] In some embodiments, the spiral paver 100 further includes a first driving member (not shown in the figure), and the output end of the first driving member is in transmission connection with the first rotating member 131 for driving the first rotating member 131 to rotate.

[0061] Specifically, the first driving member drives the first rotating member 131 to rotate about the second axis 130a in the first rotation direction 130b. Through the arrangement of the first driving member, these embodiments help the first spiral assembly 130 to rotate continuously and stably, improve the uniformity of aggregate paving, and ensure the paving quality. The first driving member can be a motor or the like, which is not limited in this application. If the first driving member is a motor, the output end is the output shaft of the motor, and the output shaft is in transmission connection with the first rotating member 131, so that the output shaft can drive the first rotating member 131 to rotate. The ways of the transmission connection between the output shaft and the first rotating member 131 are diverse. For example, the output shaft and the first rotating member 131 can be connected by a coupling to make the output shaft drive the first rotating member 131 to rotate, so as to realize the transmission connection between the output shaft and the first rotating member 131; for another example, a gear is fixedly arranged on both the output shaft and the first rotating member 131, and the two gears are meshed. The rotation of the output shaft drives the two gears to rotate, thereby driving the first rotating member 131 to rotate, so as to realize the transmission connection between the output shaft and the first rotating member 131. The first driving member can be installed on the support assembly 110 or on the fixing member 200 of the paver, such as the auger bracket, the screed plate of the screeding device, etc., which is not limited in this application.

[0062] In some embodiments, the first rotating member 131 is arranged along the height direction of the paver. After such a design, when the spiral paver 100 is installed at the corresponding position of the paver, the second axis 130a is arranged along the height direction of the paver, that is, the second axis 130a is parallel to the height direction of the paver. The first spiral assembly 130 relies on the first spiral blade 132 to push the aggregate upward. The second axis 130a is arranged along the height direction of the paver, so that the first spiral blade 132 is wound around the first rotating member 131 along the height direction of the paver. Such a design helps to quickly transport the large aggregates sinking near the support assembly 110 to the middle or upper part of the distribution chute, and can reduce the number of large aggregates falling during the process of being transported upward by the first spiral blade 132, ensuring the uniformity of aggregate mixing.

[0063] In some embodiments, at least a portion of the first helical blade 132 is located outside the material distributing helical blade 122 along the radial direction of the rotating shaft 121. That is to say, along the radial direction of the rotating shaft 121, the first helical blade 132 extends out of the material distributing helical blade 122. It can be that the upper end of the first helical blade 132 extends out of the material distributing helical blade 122, or it can be that the lower end of the first helical blade 132 extends out of the material distributing helical blade 122. When the upper end of the first helical blade 132 extends out of the material distributing helical blade 122, the large aggregates sunken near the support assembly 110 can be driven by the first helical blade 132 and move above the helical groove 122c; when the lower end of the first helical blade 132 extends out of the material distributing helical blade 122, the large aggregates that have sunk to the bottom and are located below the helical groove 122c can be driven by the first helical blade 132 and return to the helical groove 122c again; both of these situations contribute to making the aggregates near the support assembly 110 be uniformly mixed, ensuring the uniformity of aggregate mixing.

[0064] In some embodiments, the first helical blade 132 is located above the rotating shaft 121, and the upper end of the first helical blade 132 extends out of the material distributing helical blade 122.

[0065] The structure of the support assembly 110 is diverse. The support assembly 110 can be a rod, one end of the rod is fixedly connected, and the other end is connected to the rotating shaft 121.

[0066] In some embodiments, the support assembly 110 includes a support base 111, a rotating base 112 and a cantilever 113. The support base 111 is connected to the fixing member 200. The rotating base 112 is rotatably connected to the rotating shaft 121. The cantilever 113 is connected to the support base 111 and the rotating base 112, and the first rotating member 131 is sleeved outside the cantilever 113 and is rotatably connected to the cantilever 113.

[0067] The support base 111 is fixedly connected to the fixing member 200. One side of the cantilever 113 is fixedly connected to the support base 111, and the other side is fixedly connected to the rotating base 112. The support base 111 supports the cantilever 113, the cantilever 113 supports the rotating base 112, and the rotating base 112 supports the rotating shaft 121. The first rotating member 131 is sleeved outside the cantilever 113 and is rotatably connected to the cantilever 113. The support assembly 110 includes components such as the support base 111, the rotating base 112 and the cantilever 113, so that these components can be processed separately and then assembled to form the support assembly 110, which can reduce the manufacturing difficulty of the support assembly 110 and facilitate the processing of the support assembly 110. The first rotating member 131 is in a hollow tubular shape, and it is sleeved outside the cantilever 113, so that the aggregates are not blocked by the cantilever 113, which helps to reduce the contact area between the support assembly 110 and the aggregates, thereby reducing the possibility or degree of segregation.

[0068] In some embodiments, the cross-section of the cantilever 113 is circular, and the cross-section of the first rotating member 131 is annular. The inner diameter of the first rotating member 131 is greater than the diameter of the cantilever 113, so that the first rotating member 131 is rotatably connected to the cantilever 113. And the first rotating member 131 is located between the support base 111 and the rotating base 112. The support base 111 and the rotating base 112 respectively limit the upper end and the lower end of the first rotating member 131 to prevent the first rotating member 131 from detaching from the cantilever 113.

[0069] In some embodiments, the spiral spreader 100 further includes a second spiral assembly 140. The second spiral assembly 140 includes a second rotating member 141 and a second spiral blade 142. The second rotating member 141 is rotatably connected to the support assembly 110 about a third axis 140a, and the second rotating member 141 and the first rotating member 131 are respectively located on opposite sides of the rotating shaft 121 in the radial direction. The third axis 140a intersects the first axis 120a. The second spiral blade 142 is wound around the second rotating member 141 along the third axis 140a.

[0070] The second rotating member 141 and the first rotating member 131 are respectively located on opposite sides of the rotating shaft 121 in the radial direction, so that the second spiral blade 142 and the first spiral blade 132 are respectively located on opposite sides of the rotating shaft 121 in the radial direction, to ensure that the second spiral blade 142 and the first spiral blade 132 can respectively stir the aggregates on opposite sides of the rotating shaft 121 in the radial direction and ensure the mixing effect of the aggregates near the support assembly 110. When the spiral spreader 100 is in use, one of the second rotating member 141 and the first rotating member 131 is located above the rotating shaft 121, and the other is located below the rotating shaft 121. For the convenience of the following description, hereinafter, the case where the second rotating member 141 is located below the rotating shaft 121 and the first rotating member 131 is located above the rotating shaft 121 is taken as an example for description. The intersection of the third axis 140a and the first axis 120a means that the third axis 140a and the first axis 120a are arranged at an angle, which can be a right angle, an acute angle or an obtuse angle, and is not limited in this application. When the spiral spreader 100 is in use, both the first spiral blade 132 and the second spiral blade 142 extend into the aggregates, and the third axis 140a also has a projection component in the height direction of the paver. That is to say, when the spiral spreader 100 is in use, the third axis 140a cannot be horizontally arranged, that is, the third axis 140a needs to be arranged at a right angle, an acute angle or an obtuse angle with the horizontal plane. Through such a setting, when the second spiral assembly 140 rotates about the third axis 140a in the third rotation direction 140b, the second spiral blade 142 can also drive the aggregates to move toward the side away from the roadbed.

[0071] When the spiral paver 100 is in use, the second spiral assembly 140 needs to rotate about the third axis 140a in the third rotation direction 140b. The second spiral assembly 140 can be driven by a second driving member such as a motor, or it can be driven by the aggregate. When the second spiral assembly 140 is driven by a second driving member such as a motor, the motor can be mounted on the support assembly 110, with the motor output shaft fixedly connected to the second rotating member 141 of the second spiral assembly 140, or the motor output shaft and the second spiral assembly 140 can be connected via a gear or other transmission, so that the motor output shaft rotates and drives the first rotating member 131. When the auger 120 rotates about the first axis 120a in the second rotation direction 120b, the aggregate, driven by the auger 120, moves along the width of the paver. During this movement, the aggregate can exert a force on the second spiral blade 142, thereby driving the second spiral blade 142 to rotate in the third rotation direction 140b. The third rotation direction 140b can be clockwise or counterclockwise. The third rotation direction 140b is related to the rotation direction of the second spiral blade 142 and is not limited in this application.

[0072] According to the above design, the aggregate is evenly distributed over the full width of the paver by rotating the auger 120. The first spiral assembly 130 rotates around the first rotation direction 130b, and the second spiral assembly 140 rotates around the third rotation direction 140b, so that the large aggregate sinking near the support assembly 110 moves toward the side away from the roadbed under the joint drive of the first spiral blade 132 and the second spiral blade 142. Figure 2 As shown, it moves upward. Specifically, the large aggregate on the lower side of the rotating shaft 121 is transported to the middle of the material distribution trough of the paver by the second spiral blade 142, and the large aggregate on the upper side of the rotating shaft 121 is transported to the top of the material distribution trough of the paver by the first spiral blade 132, to supplement the grading, and to a certain extent prevent the segregation caused by the sinking of large aggregates and the loss of grading, thereby improving the uniformity of aggregate paving and ensuring the paving quality.

[0073] In some embodiments, along the first axis 120a, the projection of the dividing spiral blade 122 and the projection of the second spiral blade 142 have an overlapping area.

[0074] That is to say, the projection of the material distributing spiral blade 122 along the first axis 120a and the projection of the second spiral blade 142 along the first axis 120a at least partially overlap, and at least a part of the second spiral blade 142 is located in the spiral groove 122c formed by the material distributing spiral blade 122. When paving the aggregate, it mainly relies on the material distributing spiral blade 122 to push. To a certain extent, the thrust received by the aggregate located in the spiral groove 122c is greater than the thrust received by the aggregate located outside the material distributing spiral blade 122. In these embodiments, by arranging at least a part of the second spiral blade 142 in the spiral groove 122c, when the aggregate in the spiral groove 122c, which is under a greater thrust, is pushed by the material distributing spiral blade 122, it can better push the second spiral blade 142 to rotate around the third axis 140a in the third rotation direction 140b, so as to ensure that during the process of the auger 120 rotating around the first axis 120a in the second rotation direction 120b to pave the aggregate, the first spiral blade 132 can be pushed by the aggregate to rotate around the third axis 140a in the third rotation direction 140b. In these embodiments, the second spiral blade 142 is rotated by the aggregate, and there is no need to provide a driving member such as a motor to drive the second spiral blade 142, which simplifies the structure of the spiral paver 100, reduces the energy consumption of the spiral paver 100, and facilitates the use of the spiral paver 100.

[0075] In some embodiments, the spiral paver 100 further includes a second driving member (not shown in the figure), and the output end of the second driving member is in transmission connection with the second rotating member 141 for driving the second rotating member 141 to rotate.

[0076] Specifically, the second driving member drives the second rotating member 141 to rotate around the third axis 140a in the third rotation direction 140b. Through the arrangement of the second driving member in these embodiments, it helps to make the second spiral assembly 140 rotate continuously and stably, improves the uniformity of aggregate paving, and ensures the paving quality. The second driving member can be a motor or the like, which is not limited in this application. If the second driving member is a motor, the output end is the output shaft of the motor, and the output shaft is in transmission connection with the second rotating member 141, so that the output shaft can drive the second rotating member 141 to rotate. The ways of transmission connection between the output shaft and the second rotating member 141 are diverse. For example, the output shaft and the second rotating member 141 can be connected by a coupling to make the output shaft drive the second rotating member 141 to rotate, so as to realize the transmission connection between the output shaft and the second rotating member 141; for another example, a gear is fixedly arranged on both the output shaft and the first rotating member 131, and the two gears are meshed. The rotation of the output shaft drives the two gears to rotate, thereby driving the second rotating member 141 to rotate, so as to realize the transmission connection between the output shaft and the second rotating member 141. The second driving member can be installed on the support assembly 110 or on the fixing member 200 of the paver, such as the auger bracket, the screed plate of the screeding device, etc., which is not limited in this application.

[0077] In some embodiments, the second rotating member 141 is arranged along the height direction of the paver. After such an arrangement, when the screw paver 100 is installed at the corresponding position of the paver, the third axis 140a is arranged along the height direction of the paver, that is, the third axis 140a is parallel to the height direction of the paver. The second screw assembly 140 relies on the second screw blade 142 to push the aggregate upward. The third axis 140a is arranged along the height direction of the paver, so that the second screw assembly 140 is wound around the first rotating member 131 along the height direction of the paver. Such a design helps to quickly transport the large aggregates sunken near the support assembly 110 to the middle of the distribution chute, and can reduce the number of large aggregates falling during the upward transportation by the second screw blade 142, ensuring the uniformity of the aggregate mixture.

[0078] In some embodiments, at least a part of the second screw blade 142 is located outside the distribution screw blade 122 along the radial direction of the rotating shaft 121. That is to say, along the radial direction of the rotating shaft 121, the second screw blade 142 extends out of the distribution screw blade 122. It can be that the upper end of the second screw blade 142 extends out of the distribution screw blade 122, or the lower end of the second screw blade 142 extends out of the distribution screw blade 122. When the upper end of the second screw blade 142 extends out of the distribution screw blade 122, the large aggregates sunken near the support assembly 110 can be driven by the second screw blade 142 to move above the spiral groove 122c; when the lower end of the second screw blade 142 extends out of the distribution screw blade 122, the large aggregates that have sunk to the bottom and are located below the spiral groove 122c can be driven by the second screw blade 142 to return to the spiral groove 122c again; both of these situations help to make the aggregates near the support assembly 110 evenly mixed, ensuring the uniformity of the aggregate mixture.

[0079] In some embodiments, the first screw blade 132 is located above the rotating shaft 121, and the upper end of the first screw blade 132 extends out of the distribution screw blade 122. The second screw blade 142 is located below the rotating shaft 121, and the lower end of the second screw blade 142 extends out of the distribution screw blade 122.

[0080] In some embodiments, the third axis 140a and the second axis 130a are coaxially arranged.

[0081] The spiral directions of the first screw blade 132 and the second screw blade 142 can be the same or different, which is not limited in this application.

[0082] In some embodiments, the spiral directions of the first spiral blade 132 and the second spiral blade 142 are the same. In these embodiments, the first rotation direction 130b and the third rotation direction 140b are in the same direction, so that both the first spiral blade 132 and the second spiral blade 142 can drive the aggregate to move upward when rotating.

[0083] As Figure 4 shown, in some embodiments, the support assembly 110 includes a support base 111, a rotating base 112, a cantilever 113, and a lifting arm 114. The support base 111 is connected to the fixing member 200. The rotating base 112 is rotatably connected to the rotating shaft 121. The cantilever 113 is connected to the support base 111 and the rotating base 112. The first rotating member 131 is sleeved outside the cantilever 113 and is rotatably connected to the cantilever 113. The lifting arm 114 and the cantilever 113 are respectively located on two opposite sides of the rotating shaft 121 in the radial direction. The lifting arm 114 is connected to the rotating base 112. The second rotating member 141 is sleeved outside the lifting arm 114 and is rotatably connected to the lifting arm 114.

[0084] The support base 111 is fixedly connected to the fixing member 200. One side of the cantilever 113 is fixedly connected to the support base 111, and the other side is fixedly connected to the rotating base 112. The support base 111 supports the cantilever 113, the cantilever 113 supports the rotating base 112, and the rotating base 112 supports the rotating shaft 121. The first rotating member 131 is sleeved outside the cantilever 113 and is rotatably connected to the cantilever 113. The cantilever 113 and the lifting arm 114 are respectively located on the upper side and the lower side of the rotating shaft 121. The lifting arm 114 is fixedly connected to the rotating base 112. The second rotating member 141 is sleeved outside the lifting arm 114 and is rotatably connected to the lifting arm 114. The support assembly 110 includes components such as the support base 111, the rotating base 112, the cantilever 113, and the lifting arm 114. These components can be processed separately and then assembled to form the support assembly 110, which can reduce the manufacturing difficulty of the support assembly 110 and facilitate the processing of the support assembly 110. The first rotating member 131 is in the shape of a hollow tube. It is sleeved outside the cantilever 113, so that the aggregate is not blocked by the cantilever 113, which helps to reduce the contact area between the support assembly 110 and the aggregate, thereby reducing the possibility or degree of segregation. Similarly, the second rotating member 141 is in the shape of a hollow tube. It is sleeved outside the lifting arm 114, so that the aggregate is not blocked by the lifting arm 114, which helps to reduce the contact area between the support assembly 110 and the aggregate, thereby reducing the possibility or degree of segregation.

[0085] In some embodiments, the cross-section of the cantilever 113 is circular, and the cross-section of the first rotating member 131 is annular. The inner diameter of the first rotating member 131 is greater than the diameter of the cantilever 113, so that the first rotating member 131 is rotatably connected to the cantilever 113. And the first rotating member 131 is located between the support base 111 and the rotating base 112. The support base 111 and the rotating base 112 respectively limit the upper end and the lower end of the first rotating member 131 to prevent the first rotating member 131 from detaching from the cantilever 113.

[0086] In some embodiments, the cross-section of the boom 114 is circular, and the cross-section of the second rotating member 141 is annular. The inner diameter of the second rotating member 141 is greater than the diameter of the boom 114, so that the second rotating member 141 is rotatably connected to the boom 114. In these embodiments, a limiting member (not shown in the figure) may be provided at one end of the boom 114 away from the rotating base 112. The limiting member is detachably connected to the boom 114. The second rotating member 141 is located between the rotating base 112 and the limiting member. The rotating base 112 and the limiting member respectively limit the upper end and the lower end of the second rotating member 141 to prevent the second rotating member 141 from detaching from the cantilever 113. The limiting member may be a limiting pin or the like, which is not limited in this application.

[0087] It can be understood that when the spiral paver 100 is in use, there are gaps between the boom 114, the second rotating member 141 and the second spiral blade 142 and the roadbed, and they do not contact the roadbed, so as to ensure the smooth progress of the paving work.

[0088] In some embodiments, a shaft hole is formed in the middle of the rotating base 112, and the rotating shaft 121 is inserted into the shaft hole to be rotatably connected to the rotating base 112.

[0089] In some embodiments, as Figure 4 shown, both the cantilever 113 and the boom 114 are arranged along the height direction of the paver. The rotating base 112 is located between the cantilever 113 and the boom 114 and is fixedly connected to the cantilever 113 and the boom 114. The support base 111 is located above the cantilever 113 and is fixedly connected to the cantilever 113.

[0090] The working principle of the spiral paver 100 of the present application is introduced below:

[0091] When the auger 120 rotates around the first axis 120a in the second rotation direction 120b, the aggregate moves along the width direction of the paver under the drive of the auger 120. During the movement of the aggregate, a force is exerted on the first helical blade 132 and the second helical blade 142, pushing the first helical blade 132 to rotate in the first rotation direction 130b and pushing the second helical blade 142 to rotate in the third rotation direction 140b. The large aggregates rotated and sunk by the first helical blade 132 and the second helical blade 142 move towards the side away from the roadbed and move to the middle or upper area of the distribution chute of the paver to supplement the gradation, thereby improving the uniformity of aggregate paving and ensuring the paving quality.

[0092] Based on the same inventive concept, the embodiment of the present application further provides a paver, which includes the above-mentioned spiral paver 100.

[0093] Since the paver includes the above-mentioned spiral paver 100, it naturally has all the beneficial effects of the spiral paver 100 and will not be elaborated here.

[0094] The paver generally further includes a frame, a power system (including an engine and a hydraulic transmission system), a traveling system, an electric control system, a material receiving and feeding system (including a front push roller, a material receiving hopper, a scraper feeder, a spiral distributor), a leveling system, a screed device, etc. After the dump truck feeds aggregates such as asphalt into the receiving hopper, the scraper conveyor transports the aggregates to the distribution system, and then evenly spreads them by the spiral paver 100, and finally compacts and levels them through the screed plate to complete the high-precision road surface paving. The structures of these devices and the connection relationships between the various devices are well known to those skilled in the art and will not be elaborated here.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A spiral paver, applied to a paver, characterized in that, Comprising: A support assembly (110) connected to a fixing member (200) of the paver; An auger (120) including a rotating shaft (121) and a material distributing spiral blade (122), the rotating shaft (121) is rotatably connected to the support assembly (110) about a first axis (120a), and the material distributing spiral blade (122) is wound around the rotating shaft (121) along the first axis (120a); A first spiral assembly (130) including a first rotating member (131) and a first spiral blade (132), the first rotating member (131) is rotatably connected to the support assembly (110) about a second axis (130a), the first spiral blade (132) is wound around the first rotating member (131) along the second axis (130a), and the second axis (130a) intersects the first axis (120a).

2. The spiral paver according to claim 1, wherein Along the first axis (120a), the projections of the material distributing spiral blade (122) and the first spiral blade (132) have an overlapping area.

3. The spiral paver according to claim 1, characterized in that The spiral paver (100) further includes a first rotation driving member, and an output end of the first rotation driving member is in transmission connection with the first rotating member (131) for driving the first rotating member (131) to rotate.

4. The spiral spreader according to claim 1, wherein The first rotating member (131) is arranged along the height direction of the paver.

5. The spiral paver according to claim 4, wherein, Radially along the rotating shaft (121), at least a part of the first spiral blade (132) is located outside the material distributing spiral blade (122).

6. The spiral spreader according to any one of claims 1-5, characterized in that, The support assembly (110) includes: A support base (111) connected to the fixing member (200); A rotating base (112) rotatably connected to the rotating shaft (121); A cantilever (113) connected to the support base (111) and the rotating base (112), and the first rotating member (131) is sleeved outside the cantilever (113) and rotatably connected to the cantilever (113).

7. The spiral spreader according to any one of claims 1-5, characterized in that, The spiral paver (100) further includes a second spiral assembly (140), and the second spiral assembly (140) includes: A second rotating member (141) rotatably connected to the support assembly (110) about a third axis (140a), and the second rotating member (141) and the first rotating member (131) are respectively located on opposite sides of the rotating shaft (121) in the radial direction, and the third axis (140a) intersects the first axis (120a); A second spiral blade (142) wound around the second rotating member (141) along the third axis (140a).

8. The spiral spreader according to claim 7, characterized in that, Along the first axis (120a), the projections of the material distributing spiral blade (122) and the second spiral blade (142) have an overlapping area.

9. The spiral spreader according to claim 7, characterized in that, The spiral paver (100) further includes a second rotation driving member, and an output end of the second rotation driving member is in transmission connection with the second rotating member (141) for driving the second rotating member (141) to rotate.

10. The spiral spreader according to claim 7, characterized in that, The second rotating member (141) is arranged along the height direction of the paver.

11. The spiral spreader according to claim 10, characterized in that, Radially along the rotation axis (121), at least part of the second helical blade (142) is located outside the material distributing helical blade (122).

12. The spiral spreader according to claim 7, wherein, The support assembly (110) includes: A support base (111) connected to the fixing member (200); A rotating base (112) rotatably connected to the rotation axis (121); A cantilever (113) connected to the support base (111) and the rotating base (112), and the first rotating member (131) is sleeved outside the cantilever (113) and rotatably connected to the cantilever (113); A jib (114), the jib (114) and the cantilever (113) are respectively located on opposite sides of the rotation axis (121) in the radial direction, the jib (114) is connected to the rotating base (112), and the second rotating member (141) is sleeved outside the jib (114) and rotatably connected to the jib (114).

13. A paver, characterized in that, It includes the spiral spreader (100) according to any one of claims 1-12.

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