Paving device and paving method for pavement base course

Abstract

The invention discloses a paving device and a paving method for a pavement base course, and particularly relates to the technical field of pavement paving. The paving device for the pavement base comprises a frame and a box body, the base plate is obliquely arranged relative to the horizontal plane, and the lowest point of the base plate is located above the discharging opening; a plurality of limiting blocks are uniformly arranged on the base plate; the driving mechanism is connected with the base plate and used for driving the base plate to reciprocate along a preset path; a controller; and a weight detection unit. Wherein a weight-frequency comparison table is pre-stored in the controller, and the controller dynamically adjusts the operation frequency of the driving mechanism based on the weight-frequency comparison table according to the weight data transmitted by the weight detection unit so as to control the reciprocating motion speed of the substrate. Through automatic control and dynamic adjustment, uniform laying of materials is achieved, the construction efficiency and quality are improved, meanwhile, material waste is reduced, and wide application prospects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of road paving, and in particular to a paving device and a paving method for a road base. Background Art

[0002] During road construction, the laying of the road base is a key step in ensuring road quality. Traditional laying methods usually rely on manual operation or simple mechanical equipment, which has problems such as uneven laying, low efficiency, and material waste. In addition, it is difficult for existing equipment to dynamically adjust laying parameters according to actual construction needs, resulting in unstable construction quality.

[0003] Therefore, there is an urgent need for a pavement base paving device that can achieve uniform paving, automatic control and adapt to different construction conditions. Summary of the invention

[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to disclose a paving device and a paving method for a road base, so as to improve the problems existing in the prior art such as uneven paving, low efficiency, material waste and unstable construction quality.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention discloses a paving device for a road base, which comprises:

[0006] Frame;

[0007] A box body is fixedly arranged on the frame, a material collecting bin is arranged in the box body, a material discharge port connected to the material collecting bin is opened at the bottom of the box body, and a rotatable spiral roller is arranged in the material discharge port for controlling the discharge speed of the material;

[0008] A base plate is slidably disposed in the box body, and the base plate is tilted relative to the horizontal plane, and the lowest point of the base plate is located above the feed opening; a plurality of limit blocks are evenly disposed on the base plate, each of the limit blocks comprises a first connecting surface and a second connecting surface, the angle between the first connecting surface and the base plate is 120-160 degrees, and the second connecting surface is vertically disposed to the base plate, for guiding and promoting the flow of materials;

[0009] A driving mechanism, connected to the substrate, and used to drive the substrate to reciprocate along a preset path;

[0010] A controller, electrically connected to the driving mechanism, for adjusting the reciprocating frequency of the substrate;

[0011] A weight detection unit, disposed on the substrate, for detecting the weight of the material on the substrate in real time and transmitting the detected weight data to the controller;

[0012] The controller pre-stores a weight-frequency comparison table, and the controller dynamically adjusts the operating frequency of the driving mechanism based on the weight-frequency comparison table according to the weight data transmitted by the weight detection unit to control the reciprocating speed of the substrate.

[0013] In one embodiment of the present invention, a support frame is fixedly connected to the bottom of the box, and a support panel is arranged on the support frame;

[0014] Wherein, the base plate is slidably connected to the supporting panel.

[0015] In one embodiment of the present invention, the driving mechanism comprises:

[0016] A first connecting seat is fixedly connected to the box body, and a first rotating shaft is rotatably arranged on the first connecting seat;

[0017] a driving source, drivingly connected to the first rotating shaft, and used for driving the first rotating shaft to rotate; and

[0018] A plurality of cranks, fixedly connected to the first rotating shaft, and each of the cranks is hinged with a connecting rod;

[0019] Wherein, a connecting shaft is fixedly connected to the base plate, and the other end of the connecting rod is hinged to the connecting shaft.

[0020] In one embodiment of the present invention, the driving source comprises:

[0021] A motor, electrically connected to the controller and located in the box;

[0022] A second connecting seat, fixedly connected to the box body, and a second rotating shaft is rotatably provided on the second connecting seat;

[0023] Wherein, the main shaft of the motor is transmission-connected to the second rotating shaft, and the second rotating shaft is transmission-connected to the first rotating shaft via a belt.

[0024] In one embodiment of the present invention, the frame is fixedly connected with wheels and a supporting mechanism, and the supporting mechanism includes:

[0025] A first telescopic rod, one end of which is hinged to the frame, and the other end of which is hinged to a hinge seat;

[0026] A second telescopic rod, one end of which is hinged to the hinge seat, and the other end of which is hinged to the frame;

[0027] A plurality of supporting wheels connected to the articulated seat;

[0028] The lengths of the first telescopic rod and the second telescopic rod are adjustable and relatively fixed.

[0029] In one embodiment of the present invention, a mounting plate is fixedly connected to the frame, and a connecting rod is fixedly connected to the connecting plate;

[0030] Wherein, a sliding rod is slidably connected to the connecting rod, and a material guide plate is fixedly connected to the end of the sliding rod.

[0031] In one solution of the present invention, a spring is provided between the sliding rod and the connecting rod, and a guide wheel is connected to the end of the sliding rod.

[0032] In one embodiment of the present invention, the material guide plate is provided with a first guide surface and a second guide surface, and the first guide surface and the second guide surface are symmetrically arranged.

[0033] In one aspect of the present invention, a connecting frame is further included, which is fixedly connected to the end of the frame, and the connecting frame is used to connect a movable carrier.

[0034] The present invention also provides a paving method using any of the above-mentioned paving devices for road base, which comprises:

[0035] Putting the materials to be laid into the box;

[0036] Determine the rotation speed of the spiral roller and the swing frequency of the substrate based on the type of material and laying requirements;

[0037] Acquire the moving speed of the box during the pavement paving process, and generate correction parameters of the rotation speed of the spiral roller and the swing frequency of the substrate based on the moving speed;

[0038] Based on the correction parameters, the rotation speed of the spiral roller and the swing frequency of the substrate are adjusted to ensure uniform material discharge from the box.

[0039] In summary, the present invention provides a paving device for a road base, that is, a paving method. Through the synergistic effect of the spiral roller and the base plate, combined with the dynamic adjustment of the weight detection unit and the controller, the uniform paving of the material is achieved and the construction quality is improved. The controller automatically adjusts the operating frequency of the drive mechanism according to the real-time detected material weight and the preset weight-frequency comparison table, reduces manual intervention, and improves construction efficiency. Through the design of the support mechanism and the guide plate, it can adapt to different terrains and construction conditions to ensure the stability and consistency of paving. And by accurately controlling the discharge speed and paving amount of the material, it effectively reduces material waste and reduces construction costs. It can effectively improve the problems of uneven paving, low efficiency, material waste, and unstable construction quality existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a schematic structural diagram of a paving device for a road base layer in one embodiment of the present invention;

[0042] Figure 2 It is a schematic structural diagram of a side view of a paving device for a road base layer in one embodiment of the present invention;

[0043] Figure 3 for Figure 2 Schematic diagram of the structure of the AA section;

[0044] Figure 4 It is a schematic top view of the structure of a paving device for a road base layer in one embodiment of the present invention.

[0045] Component number description

[0046] 100, frame;

[0047] 110. Wheel;

[0048] 120, mounting plate;

[0049] 130, connecting rod; 131, material guide plate; 1311, first guide surface; 1312, second guide surface; 132, slide rod; 133, guide wheel; 134, spring;

[0050] 140, connecting frame;

[0051] 150, support mechanism; 151, first telescopic rod; 152, second telescopic rod; 153, hinged seat; 154, support wheel;

[0052] 200, box body; 201, material discharge port; 202, material collection bin;

[0053] 210, base plate; 2101, limit block; 21011, first connecting surface; 21012, second connecting surface; 211, connecting shaft; 212, connecting rod;

[0054] 220, first connecting seat; 221, first rotating shaft; 222, crank;

[0055] 230, second connecting seat; 231, second rotating shaft;

[0056] 240, spiral roller;

[0057] 250, support frame;

[0058] 260. Motor. DETAILED DESCRIPTION

[0059] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0060] See also Figures 1 to 4 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0061] See also Figures 1 to 4 The present invention provides a paving device for a road base, which can be used to improve the problems of uneven paving, low efficiency, material waste and unstable construction quality existing in the prior art.

[0062] Specifically, the road base paving device at least includes a frame 100, a box 200, a base plate 210, a driving mechanism, a controller and a weight detection unit. The box 200 is fixedly arranged on the frame 100, and a material collection bin 202 is arranged in the box 200. Therefore, when the frame 100 is moving, the box 200 can move synchronously with the frame 100. It can be understood that the material used for paving is arranged in the material collection bin 202, and then stored through the box 200.

[0063] A material discharge port 201 connected to the material collection bin 202 is provided at the bottom of the box body 200, and a rotatable spiral roller 240 is provided in the material discharge port 201 for controlling the discharge speed of the material. Therefore, when the spiral roller 240 is rotating, the material can be discharged through the spiral roller 240.

[0064] Furthermore, the base plate 210 is slidably disposed in the box body 200 and is tilted relative to the horizontal plane, and the lowest point of the base plate 210 is located above the material discharge port 201. Therefore, the base plate 210 will not block the material discharge port 201 during the sliding process relative to the box body 200. A plurality of limit blocks 2101 are evenly disposed on the base plate 210, and each limit block 2101 includes a first connecting surface 21011 and a second connecting surface 21012. The angle between the first connecting surface 21011 and the base plate 210 is 120-160 degrees, and the second connecting surface 21012 is perpendicularly disposed to the base plate 210 to promote the flow of materials.

[0065] Specifically, since the base plate 210 is tiltedly arranged in the box body 200, most of the weight of the material used for road paving is borne on the base plate 210. Specifically, the first connecting surface 21011 is located above the second connecting surface 21012. When the base plate 210 moves toward the top of the box body 200, the material can slide down along the first connecting surface 21011 to the bottom of the second connecting surface 21012. When the base plate 210 moves toward the bottom of the box body 200, the second connecting surface 21012 can push the material downward. By analogy, the material is gradually pushed to the discharge port 201, which can avoid the accumulation and adhesion of the material in the box body 200, accelerate the flow of the material, and further improve the flow effect of the material in the box body 200.

[0066] It can be understood that the driving mechanism is connected to the substrate 210 and is used to drive the substrate 210 to reciprocate along a preset path. The controller is electrically connected to the driving mechanism and is used to adjust the reciprocating frequency of the substrate 210. The weight detection unit is arranged on the substrate 210 and is used to detect the weight of the material on the substrate 210 in real time and transmit the detected weight data to the controller. Among them, the controller pre-stores a weight-frequency comparison table. The controller dynamically adjusts the operating frequency of the driving mechanism based on the weight data transmitted by the weight detection unit and the weight-frequency comparison table to control the reciprocating speed of the substrate 210.

[0067] In some embodiments, a support frame 250 is fixedly connected to the bottom of the box 200, and a support panel is arranged on the support frame 250; wherein the base plate 210 is slidably connected to the support panel. By adding the support, the stability of the base plate 210 during the sliding process can be effectively improved.

[0068] Further, the driving mechanism includes a first connecting seat 220, a driving source and a plurality of cranks 222. The first connecting seat 220 is fixedly connected to the box body 200, and a first rotating shaft 221 is rotatably provided on the first connecting seat 220. The driving source is transmission-connected to the first rotating shaft 221, and is used to drive the first rotating shaft 221 to rotate. A plurality of cranks 222 are fixedly connected to the first rotating shaft 221, and a connecting rod 212 is hinged to each crank 222. A connecting shaft 211 is fixedly connected to the base plate 210, and the other end of the connecting rod 212 is hinged to the connecting shaft 211.

[0069] Further, the driving source includes a motor 260, a second connection base 230 and a second rotating shaft 231. The motor 260 is electrically connected to the controller and is located in the box 200. The second connection base 230 is fixedly connected to the box 200, and the second rotating shaft 231 is rotatably provided on the second connection base 230. The main shaft of the motor 260 is transmission-connected to the second rotating shaft 231, and the second rotating shaft 231 is connected to the first rotating shaft 221 through a belt transmission. Therefore, when the motor 260 is rotating, the substrate 210 can be driven to reciprocate through the first rotating shaft 221, the crank 222 and the connecting rod 212.

[0070] In some embodiments, the motor 260 may also be connected to the spiral roller 240. Therefore, the motor 260 drives the spiral roller 240 to rotate while driving the substrate 210 to reciprocate. It should be noted that when the substrate 210 and the spiral roller 240 are driven by the same motor 260, a speed adjustment mechanism, such as a gearbox, needs to be provided between the motor 260 and the spiral roller 240. The speed adjustment mechanism is connected to the controller so that the controller can adjust the rotation speed of the spiral roller 240 through the speed adjustment mechanism.

[0071] However, it is not limited thereto. In some embodiments, the spiral roller 240 may be independently provided with a device for driving the spiral roller 240 to rotate. The device may be determined according to actual needs.

[0072] See also Figures 1 to 4 In some embodiments, a wheel 110 and a support mechanism 150 are fixedly connected to the frame 100. The support mechanism 150 includes a first telescopic rod 151, a second telescopic rod 152, and a plurality of support wheels 154. One end of the first telescopic rod 151 is hinged to the frame 100, and the other end is hingedly provided with an articulated seat 153. One end of the second telescopic rod 152 is hinged to the articulated seat 153, and the other end is hinged to the frame 100. A plurality of support wheels 154 are connected to the articulated seat 153. The lengths of the first telescopic rod 151 and the second telescopic rod 152 are adjustable and relatively fixed. The support mechanism 150 is used to provide a certain support for the frame 100, and at the same time, by adjusting the height of the support wheel 154 relative to the frame 100, the inclination angle of the vehicle body during the actual movement process can be adjusted.

[0073] For example, when the paved road surface is a non-horizontal surface, the box body 200 and the frame 100 can be in a horizontal state by adjusting the length of the first telescopic rod 151 and the second telescopic rod 152, so as to further ensure the stability of the unloading port 201 during the unloading process.

[0074] Furthermore, a mounting plate 120 is fixedly connected to the vehicle frame 100, and a connecting rod 130 is fixedly connected to the connecting plate. A sliding rod 132 is slidably connected to the connecting rod 130, and a guide plate 131 is fixedly connected to the end of the sliding rod 132. A spring 134 is provided between the sliding rod 132 and the connecting rod 130, and a guide wheel 133 is connected to the end of the sliding rod 132. Therefore, when the vehicle frame 100 moves forward, the guide wheel 133 contacts the ground, and can be used to sense the state of the ground when rolling, and adjust the distance between the lower edge of the guide plate 131 and the ground to be consistent.

[0075] The guide plate 131 is provided with a first guide surface 1311 and a second guide surface 1312, and the first guide surface 1311 and the second guide surface 1312 are symmetrically arranged. It can be understood that the first guide surface 1311 and the second guide surface 1312 are arranged at an angle, and the angle points to the forward direction of the vehicle body. Therefore, when the frame 100 is moving forward, the guide plate 131 can guide the front side of the frame 100 to both sides of the frame 100 to ensure that the ground is in a flat state when unloading.

[0076] Furthermore, a connecting frame 140 is also included, which is fixedly connected to the end of the frame 100, and the connecting frame 140 is used to connect a movable carrier. It can be understood that the movable carrier can be used to drive the frame 100 to move. At the same time, different mobile carriers can be selected according to different laying environments.

[0077] The present invention also provides a paving method using the above-mentioned pavement base paving device, comprising the following steps.

[0078] First, the materials to be laid are placed into the box 200 .

[0079] It is understandable that different layers of the road surface may be constructed using different materials, for example, sand and gravel, crushed stone, etc.

[0080] Secondly, based on the type of material and the laying requirements, the rotation speed of the spiral roller 240 and the swing frequency of the base plate 210 are determined. By adjusting the rotation speed of the spiral roller 240, the rate of material feeding can be regulated. Therefore, it can be applied to laying material layers of different thicknesses. At the same time, adjusting the swing frequency of the base plate 210 can be used to improve the stability of the flow of the material in the box 200. For example, for materials with a higher flow rate, a low-frequency swing can be allowed. For materials with a lower flow rate, a high-frequency swing can be allowed.

[0081] Furthermore, the moving speed of the box 200 during the pavement paving process is obtained, and based on the moving speed, correction parameters for the rotation speed of the spiral roller 240 and the swing frequency of the base plate 210 are generated. During the paving process, different speeds correspond to different effects when the frame 100 and the box 200 are moving. Therefore, by adjusting the rotation speed of the spiral tube and the swing speed of the base plate 210, the actual paving effect is optimized.

[0082] Finally, based on the correction parameters, the rotation speed of the spiral roller 240 and the swing frequency of the substrate 210 are adjusted to ensure uniform material discharge from the box 200 .

[0083] In summary, the present invention provides a paving device and a paving method for a road base, which realizes uniform paving of materials and improves construction quality through the synergistic effect of the spiral roller 240 and the base plate 210, combined with the dynamic adjustment of the weight detection unit and the controller. The controller automatically adjusts the operating frequency of the drive mechanism according to the real-time detected material weight and the preset weight-frequency comparison table, reduces manual intervention, and improves construction efficiency. Through the design of the support mechanism 150 and the guide plate 131, it can adapt to different terrains and construction conditions to ensure the stability and consistency of paving. And by accurately controlling the discharge speed and paving amount of the material, it effectively reduces material waste and reduces construction costs. Therefore, it can effectively improve the problems of uneven paving, low efficiency, material waste, and unstable construction quality existing in the prior art.

[0084] Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0085] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A paving device for a road base, characterized in that: include: Frame (100); A box body (200) is fixedly arranged on the frame (100), a material collecting bin (202) is arranged in the box body (200), a material discharge port (201) connected to the material collecting bin (202) is opened at the bottom of the box body (200), and a rotatable spiral roller (240) is arranged in the material discharge port (201) for controlling the discharge speed of the material; A base plate (210) is slidably arranged in the box body (200), and the base plate (210) is inclined relative to a horizontal plane, and the lowest point of the base plate (210) is located above the discharge port (201); a plurality of limit blocks (2101) are evenly arranged on the base plate (210), and each of the limit blocks (2101) includes a first connecting surface (21011) and a second connecting surface (21012), and the angle between the first connecting surface (21011) and the base plate (210) is 120-160 degrees, and the second connecting surface (21012) and the base plate (210) are arranged vertically, so as to guide and promote the flow of materials; A driving mechanism, connected to the substrate (210), and used to drive the substrate (210) to reciprocate along a preset path; A controller, electrically connected to the driving mechanism, for adjusting the reciprocating frequency of the substrate (210); A weight detection unit, disposed on the substrate (210), for detecting the weight of the material on the substrate (210) in real time and transmitting the detected weight data to the controller; The controller pre-stores a weight-frequency comparison table, and the controller dynamically adjusts the operating frequency of the driving mechanism based on the weight-frequency comparison table according to the weight data transmitted by the weight detection unit to control the reciprocating speed of the substrate (210).

2. The pavement base paving device according to claim 1, characterized in that: A support frame (250) is fixedly connected to the bottom of the box body (200), and a support panel is arranged on the support frame (250); Wherein, the base plate (210) is slidably connected to the supporting panel.

3. The paving device for a road base according to claim 1, characterized in that: The driving mechanism comprises: A first connecting seat (220) is fixedly connected to the box body (200), and a first rotating shaft (221) is rotatably arranged on the first connecting seat (220); a driving source, drivingly connected to the first rotating shaft (221), and used for driving the first rotating shaft (221) to rotate; and A plurality of cranks (222) are fixedly connected to the first rotating shaft (221), and a connecting rod (212) is hingedly connected to each crank (222); Wherein, a connecting shaft (211) is fixedly connected to the base plate (210), and the other end of the connecting rod (212) is hinged to the connecting shaft (211).

4. The pavement base paving device according to claim 3, characterized in that: The driving source comprises: A motor (260), electrically connected to the controller and located in the housing (200); A second connecting seat (230) is fixedly connected to the box body (200), and a second rotating shaft (231) is rotatably arranged on the second connecting seat (230); The main shaft of the motor (260) is connected to the second rotating shaft (231) by transmission, and the second rotating shaft (231) is connected to the first rotating shaft (221) by belt transmission.

5. The paving device for a road base layer according to claim 1, characterized in that: The frame (100) is fixedly connected with a wheel (110) and a support mechanism (150), wherein the support mechanism (150) comprises: A first telescopic rod (151), one end of which is hinged to the vehicle frame (100), and the other end of which is hingedly provided with a hinge seat (153); A second telescopic rod (152), one end of which is hinged to the hinge seat (153), and the other end of which is hinged to the vehicle frame (100); A plurality of supporting wheels (154) connected to the hinge seat (153); The lengths of the first telescopic rod (151) and the second telescopic rod (152) are adjustable and relatively fixed.

6. The paving device for a road base according to claim 1, characterized in that: A mounting plate (120) is fixedly connected to the vehicle frame (100), and a connecting rod (130) is fixedly connected to the connecting plate; Wherein, a sliding rod (132) is slidably connected to the connecting rod (130), and a material guide plate (131) is fixedly connected to the end of the sliding rod (132).

7. The paving device for a road base according to claim 6, characterized in that: A spring (134) is provided between the sliding rod (132) and the connecting rod (130), and a guide wheel (133) is connected to the end of the sliding rod (132).

8. The pavement base paving device according to claim 6, characterized in that: The material guide plate (131) is provided with a first guide surface (1311) and a second guide surface (1312), and the first guide surface (1311) and the second guide surface (1312) are symmetrically arranged.

9. The paving device for a road base layer according to claim 1, characterized in that: It also includes a connecting frame (140) which is fixedly connected to the end of the frame (100), and the connecting frame (140) is used to connect a movable carrier.

10. A paving method using the pavement base paving device according to any one of claims 1 to 9, characterized in that: include: Putting the materials to be laid into the box (200); Determining the rotation speed of the spiral roller (240) and the swing frequency of the substrate (210) based on the type of material and laying requirements; Acquiring the moving speed of the box (200) during the pavement paving process, and generating correction parameters of the rotation speed of the spiral roller (240) and the swing frequency of the substrate (210) based on the moving speed; Based on the correction parameters, the rotation speed of the spiral roller (240) and the swing frequency of the substrate (210) are adjusted to ensure uniform material discharge from the box (200).

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