Paving equipment for water-stable base layer of airport pavement

Abstract

The utility model discloses paving equipment for a water-stable base layer of an airport pavement, which comprises a paver body, a mounting frame is rotatably arranged at the end part of the paver body, a paving roller is rotatably arranged at the bottom of the mounting frame, a prism and a gradient sensor are further arranged on the mounting frame, and a driving piece for driving the mounting frame to swing is further arranged on the paver body. The paving roller comprises a main body and a plurality of groups of supporting pieces arranged along the axial direction of the main body, the supporting diameters of the supporting pieces are adjustable, and the plurality of groups of supporting pieces are sleeved with the same elastic sleeve. The axial inclination of the paving roller is adjusted by supporting the elastic sleeve to different degrees through the multiple groups of supporting pieces, so that possible inclination of a paving surface can be compensated, the pavement flatness and the paving thickness reach design standards, and meanwhile, the high-precision requirement of an airport pavement can also be met.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, and particularly to a paving equipment for the water-stable base course of airport pavement. Background Art

[0002] The water-stable base course, also known as the cement-stabilized base course, refers to the foundation of a road or airport runway. Specifically, it is a pavement base course formed by using cement as a binder, mixing with soil, gravel or other aggregates, adding water, spreading and compacting. The stabilizing effect of cement mainly depends on the hydration products of cement, such as hydrated calcium silicate, hydrated calcium ferrite gels, hydrated calcium aluminate and hydrated calcium sulfoaluminate crystals, etc. After setting and hardening, the cement stone formed can tightly bond the loose materials together, thus generating mechanical strength.

[0003] At present, the Chinese patent with the publication number CN217174290U discloses an asphalt water-stable base course and asphalt lower layer paving equipment, including a paver body, a total station reference station and a control system. Among them, a paving roller assembly is rotatably arranged at the end of the paver body, and a slope sensor and a prism are also arranged on the paving roller assembly. During paving, the corresponding elevation correction information is obtained through the comparison of the slope sensor, the prism and the total station reference station, and then the paving roller assembly can be controlled to swing up or down accordingly, so that the paved road surface has slope and elevation changes.

[0004] However, the above patent can only control the slope and elevation of the paving surface, but cannot adjust the possible lateral inclination of the paving surface, that is, the paving surface may be inclined along the axial direction of the paving roller, resulting in the road surface flatness and paving thickness not meeting the design requirements, especially unable to meet the high-precision requirements of airport pavement. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a paving equipment for the water-stable base course of airport pavement.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A paving equipment for the water-stable base course of airport pavement includes a paver body. An installation frame is rotatably arranged at the end of the paver body. A paving roller is rotatably arranged at the bottom of the installation frame. A prism and a slope sensor are also arranged on the installation frame. A driving member for driving the installation frame to swing is also arranged on the paver body. The paving roller includes a main body and a plurality of groups of supporting members arranged along the axial direction of the main body, and the supporting diameter of the supporting members is adjustable. The same elastic sleeve is sleeved on the plurality of groups of supporting members.

[0008] The driving member includes a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0009] The elastic sleeve is a rubber sleeve.

[0010] The support member includes a plurality of connecting tubes arranged along the circumferential direction, each of which is slidably fitted with a connecting rod, the end of which is fixedly connected to the inner wall of the elastic sleeve, and an ejector member for driving the connecting rod to be ejected is arranged in the connecting tube.

[0011] The support member comprises an air bag, and the outer wall of the air bag abuts against the inner wall of the elastic sleeve.

[0012] The ejector comprises a small electric cylinder.

[0013] The ejector includes an electromagnet, and the connecting rod is adapted to be acted upon by a magnetic force. When the electromagnet is energized, the connecting rod is ejected under the action of the magnetic force.

[0014] A mounting ring groove is formed on the inner wall of the elastic sleeve, and the airbag is embedded in the mounting ring groove.

[0015] The beneficial effect of the utility model is that the axial inclination of the paving roller can be adjusted by supporting the elastic sleeve to different degrees through multiple groups of support parts, so as to compensate for the possible inclination of the paving surface, so that the road surface flatness and paving thickness meet the design standards, and at the same time can also meet the high-precision requirements of the airport road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 is a structural schematic diagram of a connecting rod;

[0018] Figure 3 Schematic diagram of the structure of the airbag.

[0019] Figure numerals: 1. paver body; 2. mounting frame; 3. paver roller; 4. prism; 5. driving member; 6. main body; 7. supporting member; 8. elastic sleeve; 9. connecting tube; 10. connecting rod; 11. ejector; 12. airbag; 13. mounting ring groove. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solution 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3As shown in the figure, a paving equipment for the water-stable base layer of airport pavement includes a paver body 1. An installation frame 2 is rotatably arranged at the end of the paver body 1, and a paving roller 3 is rotatably arranged at the bottom of the installation frame 2. Among them, other components of the paver body 1 can refer to the paver in the prior art. For example, it can include a vehicle body and a material box arranged on the vehicle body. During specific paving, the vehicle body moves forward, and the discharge port of the material box conveys the concrete to the road surface. Immediately afterwards, the paving roller 3 can flatten the concrete.

[0022] In order to achieve 3D controllable paving operation of the water-stable base layer, a total station base station is also set up at the paving site, and a prism 4 and a slope sensor are arranged on the installation frame 2. Through the communication between the prism 4 and the total station base station, the 3D attitude of the paving roller 3 can be monitored. Therefore, the corresponding elevation correction information can be obtained through the comparison of the slope sensor, the prism 4 and the total station reference station. Subsequently, a driving member 5 such as a hydraulic cylinder, a pneumatic cylinder or an electric cylinder on the paver body 1 can drive the installation frame 2 to swing. For example, when the installation frame 2 swings upward, the paving roller 3 moving with the vehicle body will pave an uphill surface; similarly, when the installation frame 2 swings downward, a downhill surface can be paved accordingly.

[0023] The paving roller 3 includes a main body 6 and multiple groups of support members 7 arranged along the axial direction of the main body 6, and the support members 7 are adapted to have adjustable support diameters. The same elastic sleeve 8 is sleeved on the multiple support members 7. For example, the elastic sleeve 8 can be a rubber sleeve or a ductile metal sleeve.

[0024] When the comparison of the slope sensor, the prism 4 and the total station reference station obtains that the installation frame 2 has an inclination error, the corresponding inclination correction information will be obtained. Subsequently, each support member 7 can respond with different support diameters, thereby driving the axial inclination of the paving roller 3 to be adjusted, and further compensating for the possible inclination of the paving surface, so that the road surface flatness and paving thickness reach the design standard.

[0025] As Figure 2 As shown in the figure, in some embodiments, the support member 7 may include a plurality of connecting cylinders 9 arranged circumferentially. A connecting rod 10 is slidably and adaptively arranged in each connecting cylinder 9. The end of the connecting rod 10 away from the main body 6 is fixedly connected to the inner wall of the elastic sleeve 8. For example, the connecting rod 10 and the elastic sleeve 8 can be fixed by bonding or fastener connection. In addition, a jacking member 11 capable of driving the connecting rod 10 to jack out different distances is also arranged in the connecting cylinder 9. That is, after the connecting rod 10 jacks out different distances, the elastic sleeve 8 will expand to different degrees. With the cooperation of multiple groups of different degrees of expansion, the elastic sleeve 8 will present an expected slope, and the adjustment of the axial inclination of the paving roller 3 is realized.

[0026] For example, the above-mentioned ejector 11 can be a small electric cylinder. As another solution, the ejector 11 can also be an electromagnet, and the connecting rod 10 is correspondingly adapted to be able to be affected by magnetic force. Therefore, when the axial inclination of the paving roller 3 needs to be adjusted, the electromagnet can be controlled to generate magnetic forces of different magnitudes. For example, the connecting rod 10 can be pushed out by the repulsive force acting on it to drive the elastic sleeve 8 to expand.

[0027] As Figure 3 shown, in some other embodiments, the support member 7 can also be an airbag 12 that abuts against the inner wall of the elastic sleeve 8, and a plurality of airbags 12 are arranged in sequence and evenly along the circumferential direction of the main body 6. For example, an air pump can be arranged in the main body 6, and the air pump is connected to each airbag 12 through a pipeline. When the axial inclination of the paving roller 3 needs to be adjusted, gas can be pumped into the airbag 12 through the air pump. At this time, the airbag 12 expands and drives the elastic sleeve 8 to expand as expected. Among them, the air pump can be separately arranged corresponding to each airbag 12, or a flow control valve can be arranged on each pipeline to control the inflation volume of the airbag 12. In addition, an electromagnetic air release valve can also be arranged on the airbag 12 to facilitate driving all the airbags 12 to return to the initial state.

[0028] For example, an installation ring groove 13 can also be formed on the inner wall of the elastic sleeve 8. When the elastic sleeve 8 is assembled to the main body 6, the airbag 12 is fitted in the installation ring groove 13. On the one hand, this makes it difficult for the elastic sleeve 8 to move axially, and on the other hand, it is more convenient for the installation of the airbag 12 and the elastic sleeve 8.

[0029] The working principle of the present utility model is:

[0030] In one example, when the axial inclination of the paving roller 3 needs to be adjusted, the electromagnet can be controlled to generate repulsive forces of different magnitudes. The connecting rod 10 is pushed out by the repulsive force acting on it to drive the elastic sleeve 8 to expand, so that each support member 7 can respond with different support diameters, thereby driving the axial inclination of the paving roller 3 to be adjusted, and further compensating for the possible inclination of the paving surface.

[0031] In another example, when the axial inclination of the paving roller 3 needs to be adjusted, gas can be pumped into the airbag 12 through the air pump. At this time, the airbag 12 expands and drives the elastic sleeve 8 to expand as expected, so that each support member 7 can respond with different support diameters, thereby driving the axial inclination of the paving roller 3 to be adjusted, and further compensating for the possible inclination of the paving surface.

[0032] The above are only the preferred embodiments of the present utility model. It should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. An airport pavement water-stable base paving device, including a paver body (1), an installation frame (2) is rotatably arranged at the end of the paver body (1), a paving roller (3) is rotatably arranged at the bottom of the installation frame (2), a prism (4) and a slope sensor are also arranged on the installation frame (2), and a driving member (5) for driving the installation frame (2) to swing is also arranged on the paver body (1), and the feature is that: The paving roller (3) comprises a main body (6) and a plurality of groups of support members (7) arranged axially along the main body (6), wherein the support diameter of the support members (7) is adjustable, and the same elastic sleeve (8) is sleeved on the plurality of groups of support members (7).

2. The paving equipment for the water-stable base course of the airport pavement according to claim 1, wherein: The driving member (5) comprises a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

3. The paving equipment for the water-stable base course of the airport pavement according to claim 1, characterized in that: The elastic sleeve (8) is a rubber sleeve.

4. The paving equipment for the water-stable base course of the airport pavement according to claim 1, characterized in that: The support member (7) comprises a plurality of connecting tubes (9) arranged along the circumferential direction, each of the connecting tubes (9) is slidably fitted with a connecting rod (10), the end of the connecting rod (10) is fixedly connected to the inner wall of the elastic sleeve (8), and an ejection member (11) for driving the connecting rod (10) to be ejected is arranged in the connecting tube (9).

5. The paving equipment for the water-stabilized base course of the airport pavement according to claim 1, characterized in that: The support member (7) comprises an air bag (12), and the outer wall of the air bag (12) abuts against the inner wall of the elastic sleeve (8).

6. The paving equipment for the water-stable base course of the airport pavement according to claim 4, characterized in that: The ejector (11) comprises a small electric cylinder.

7. The paving equipment for the water-stabilized base course of the airport pavement according to claim 4, characterized in that: The ejector (11) comprises an electromagnet, and the connecting rod (10) is adapted to be able to be acted upon by a magnetic force. When the electromagnet is energized, the connecting rod (10) is ejected under the action of the magnetic force.

8. The paving equipment for the water-stable base course of the airport pavement according to claim 5, characterized in that: A mounting annular groove (13) is formed on the inner wall of the elastic sleeve (8), and the air bag (12) is embedded in the mounting annular groove (13).

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