A guide roller mechanism for road paving and withdrawal

Abstract

The invention discloses a guide roller mechanism for pavement paving and withdrawal, comprising: a roller support, a fixed support, a rotating shaft, a pin shaft, a wheel axle, a roller and a guide wheel; the connecting hole B at the C end of the roller support is pin-connected with the connecting holes A on the two side plates of the fixed support through a rotating shaft; the roller support can rotate around the axis of the rotating shaft, and when the positioning hole of the roller support is coaxial with the limiting hole A of the fixed support and connected through the pin shaft, the roller support is in an upper swing position; when the positioning hole of the roller support is coaxial with the limiting hole B of the fixed support and connected through the pin shaft, the roller support is in a lower swing position; the three wheel axles are respectively fixed in the connecting holes B at the A end, the B end and the D end of the roller support; a roller and a guide wheel are respectively installed on each wheel axle; the mechanism has a simple structure, reliable operation, convenient maintenance and economical cost, can support and guide the pavement unit plate, and solves the problem of pavement unit plate offset.

Description

Technical Field

[0001] The invention belongs to the technical field of road paving, and in particular relates to a guide roller mechanism used for road paving and withdrawal. Background Art

[0002] As my country continues to attach importance to the field of emergency transportation security, more and more emergency rescue equipment has been launched. Hard pavement vehicles are mainly used to quickly lay temporary movable pavements on low-load-bearing areas such as beaches, mud, and snow, to ensure the passage of tracked and wheeled vehicles, improve mobility, and lay temporary passages for temporary material transfer stations, warehouses, stations and other facilities and various construction sites. However, due to the high flexibility of the joints of the pavement unit panels, the laying vehicle is prone to offset and skew when working, so it is particularly important to add guide equipment to the laying vehicle. Summary of the invention

[0003] In view of this, the present invention provides a guide roller mechanism for pavement paving and withdrawal, which has a simple structure, reliable operation, convenient maintenance, and economical cost. It can support and guide the pavement unit plate, solving the problem of pavement unit plate deviation.

[0004] The present invention is achieved through the following technical solutions:

[0005] A guide roller mechanism for road paving and withdrawal, comprising: a roller support, a fixed support, a rotating shaft, a pin shaft, a wheel shaft, a roller and a guide wheel;

[0006] The fixed support is a U-shaped frame; the bottom plate of the U-shaped frame is fixed to the tail beam of the road paving vehicle by welding; the two side plates of the U-shaped frame are processed with the same connection hole A, limit hole A and limit hole B; the distance between the center of the limit hole A and the limit hole B and the center of the connection hole A is equal;

[0007] The roller support comprises three identical trapezoidal plates and two or more connecting plates; the three trapezoidal plates are arranged in parallel and opposite to each other, and are fixedly connected into an integral structure through two or more connecting plates; the two ends of the upper bottom edge of the trapezoidal plate are respectively end A and end B, and the two ends of the lower bottom edge are respectively end C and end D, and the end A and end C are located on the same side, and the end B and end D are located on the same side; the end A, end B, end C and end D of the trapezoidal plate are respectively processed with a connecting hole B, wherein the end C is also processed with a positioning hole;

[0008] The connection hole B at the C end of the roller support is connected to the connection holes A on the two side plates of the fixed support through a rotating shaft pin; the roller support can rotate around the axis of the rotating shaft. When the positioning hole of the roller support is coaxial with the limiting hole A of the fixed support and connected through the pin, the roller support is in an upper swing position, which can meet the transportation state requirements of the road paving vehicle; when the positioning hole of the roller support is coaxial with the limiting hole B of the fixed support and connected through the pin, the roller support is in a lower swing position, which can meet the operation state requirements of the road paving vehicle;

[0009] The three wheel axles are respectively fixed in the connecting holes B at the A end, B end and D end of the roller support; a roller and a guide wheel are respectively installed on each wheel axle; and the roller and the guide wheel can rotate around the wheel axle; wherein, the three rollers on the three wheel axles are located on the same side, and the three guide wheels are located on the same side; an annular guide groove is processed on the outer circumferential surface of the guide wheel, and the annular guide groove is used for sliding cooperation with the traction belt on the bottom surface of the pavement unit plate.

[0010] Furthermore, the centers of the four connecting holes B of the roller support located on the same trapezoidal plate are located on the same circle.

[0011] Furthermore, the distances between the centers of the limiting holes A and B of the fixed support and the center of the connecting hole A are both 75 mm, and the angle formed by the line connecting the centers of the limiting holes A and B and the center of the connecting hole A is 128°.

[0012] Furthermore, the roller and guide wheel are respectively mounted on the axle through bushings, and the bushings are used to reduce the friction between the roller and guide wheel and the axle, so that the roller and guide wheel can rotate around the axle.

[0013] Furthermore, the wheel axle and the rotating shaft are both made of 40Cr steel.

[0014] Furthermore, the roller support and the fixed support are both made of steel.

[0015] Furthermore, the roller and guide wheel are both made of non-metallic materials.

[0016] Beneficial effects: (1) When paving the road, the present invention can support, guide and limit the pavement unit plate through the guide wheel and the roller. It has a simple structure, reliable operation, convenient maintenance and economical cost. It solves the problem of pavement unit plate deviation during operation and realizes automated operation.

[0017] (2) Since the centers of the four connecting holes B of the roller support of the present invention are located on the same circle, the three rollers located on the same guide roller mechanism can be inscribed in the same circle and matched with the reverse limiting angle of the pavement joint, thereby ensuring that when the pavement unit plate passes through the roller, the pavement unit plate always maintains contact with one of the three rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural composition diagram of the present invention;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 It is the structural diagram of the roller support;

[0021] Figure 4 The figure is a schematic diagram of the assembly of the roller and the guide wheel;

[0022] Figure 5 This is a working principle diagram of the present invention in the lowered position;

[0023] Figure 6 The transport state diagram of the present invention is in the upper swing position;

[0024] Among them, 1-roller support, 2-fixed support, 3-rotating axis, 4-pin shaft, 5-wheel axle, 6-roller, 7-guide wheel, 8-sleeve. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0026] This embodiment provides a guide roller mechanism for road paving and withdrawal, see attached Figure 1-2 , including: a roller support 1, a fixed support 2, a rotating shaft 3, a pin shaft 4, a wheel shaft 5, a roller 6, a guide wheel 7 and a sleeve 8;

[0027] The fixed support 2 is a U-shaped frame; the bottom plate of the U-shaped frame is fixed to the tail beam of the road paving vehicle by welding; the two side plates of the U-shaped frame are processed with the same connection hole A, limit hole A and limit hole B; the distance between the center of the limit hole A and the limit hole B and the center of the connection hole A is 75mm, and the angle formed by the line connecting the center of the limit hole A and the limit hole B and the center of the connection hole A is 128°;

[0028] See attached Figure 3 The roller support 1 includes three identical trapezoidal plates and two or more connecting plates; the three trapezoidal plates are arranged parallel to each other and are fixedly connected into an integral structure through two or more connecting plates; the two ends of the upper bottom edge of the trapezoidal plate are respectively A end and B end, the two ends of the lower bottom edge are respectively C end and D end, and the A end and the C end are located on the same side, and the B end and the D end are located on the same side; the A end, B end, C end and D end of the trapezoidal plate are respectively processed with a connecting hole B, wherein the C end is also processed with a positioning hole; the centers of the four connecting holes B located on the same trapezoidal plate are located on the same circle;

[0029] The C end of the roller support 1 is pinned to the two side plates of the fixed support 2 through the rotating shaft 3; wherein the pinning method of the roller support 1 and the fixed support 2 is as follows: the connection hole A of the fixed support 2 is coaxial with the three connection holes B at the C end of the roller support 1; the rotating shaft 3 passes through the coaxial connection hole A and the connection hole B to realize the pinning of the roller support 1 and the fixed support 2;

[0030] The roller support 1 can rotate around the axis of the rotating shaft 3; see the attached Figure 6 When the positioning hole of the roller support 1 is coaxial with the limiting hole A of the fixed support 2 and connected by the pin 4, the roller support 1 is in the upper swing position, which can meet the transportation state requirements of the road paving vehicle; see the attached Figure 5 When the positioning hole of the roller support 1 is coaxial with the limiting hole B of the fixed support 2 and connected by the pin 4, the roller support 1 is in the lowered position, which can meet the working state requirements of the road paving vehicle;

[0031] The three wheel axles 5 are respectively fixed in the connection holes B at the A end, B end and D end of the roller support 1; see the attached Figure 4 , each wheel axle 5 is respectively installed with a roller 6 and a guide wheel 7; wherein, the roller 6 and the guide wheel 7 are respectively mounted on the wheel axle 5 through a bushing 8, and the bushing 8 is used to reduce the friction between the roller 6 and the guide wheel 7 and the wheel axle 5, so that the roller 6 and the guide wheel 7 can rotate around the wheel axle 5; wherein, the three rollers 6 on the three wheel axles 5 are located on the same side, and the three guide wheels 7 are located on the same side; an annular guide groove is processed on the outer circumferential surface of the guide wheel 7, and the annular guide groove is used to slide with the traction belt on the bottom surface of the pavement unit plate.

[0032] The axle 5 and the rotating shaft 3 are both made of 40Cr steel, which has good low-temperature impact toughness and low notch sensitivity and good cutting performance;

[0033] The roller support 1 and the fixed support 2 are both made of BS700 high-strength cold-formed hot-rolled steel, which has good welding performance and impact resistance.

[0034] The roller 6 and the guide wheel 7 are both made of non-metallic materials, such as nylon 1010 plastic material, and have the characteristics of high mechanical strength, impact toughness, wear resistance and good self-lubrication.

[0035] Working principle: the two guide roller mechanisms are symmetrically installed on the tail crossbeam along the longitudinal center axis plane of the road paving vehicle, and the distance between the trapezoidal plates in the middle of the two roller supports 1 is the same as the rear wheelbase of the chassis of the road paving vehicle; and the guide wheels 7 of the two guide roller mechanisms are located on the outside, that is, the rollers 6 of the two guide roller mechanisms are arranged opposite to each other;

[0036] See attached Figure 6, when the road paving vehicle is transporting, the roller support 1 is in the upper swing position;

[0037] See attached Figure 5 When the pavement paving vehicle is operating, the roller support 1 is in the lowered position; the pavement unit plate to be paved moves along the roller 6 to the ground to realize pavement paving; wherein, in the process of the pavement unit plate moving along the roller 6, the traction belt on the bottom surface of the pavement unit plate slides with the annular guide groove of the guide wheel 7, the roller 6 realizes the support and guidance of the pavement unit plate, and the guide wheel 7 realizes the limitation and guidance of the pavement unit plate, and the roller 6 and the guide wheel 7 can ensure the smooth paving of the pavement unit plate.

[0038] Since the centers of the four connecting holes B of the roller support 1 are located on the same circle, the three rollers 6 located on the same guide roller mechanism can be inscribed and enveloped by the same circle, matching the reverse limit angle of the pavement joint, ensuring that when the pavement unit plate passes through the roller 6, the pavement unit plate can always maintain contact with one of the three rollers 6.

[0039] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide roller mechanism for road paving and withdrawal, characterized in that: include: Roller support (1), fixed support (2), rotating shaft (3), pin shaft (4), wheel shaft (5), roller (6) and guide wheel (7); The fixed support (2) is a U-shaped frame; the bottom plate of the U-shaped frame is fixed to the rear crossbeam of the road paving vehicle by welding; the two side plates of the U-shaped frame are processed with the same connection hole A, limit hole A and limit hole B; the distances between the centers of the limit holes A and the limit holes B and the center of the connection hole A are equal; The roller support (1) comprises three identical trapezoidal plates and two or more connecting plates; the three trapezoidal plates are arranged parallel to each other and are fixedly connected into an integral structure through the two or more connecting plates; the two ends of the upper bottom edge of the trapezoidal plate are respectively end A and end B, the two ends of the lower bottom edge are respectively end C and end D, and the end A and end C are located on the same side, and the end B and end D are located on the same side; the end A, end B, end C and end D of the trapezoidal plate are respectively processed with a connecting hole B, wherein the end C is also processed with a positioning hole; The connection hole B at the C end of the roller support (1) is pin-connected with the connection holes A on the two side plates of the fixed support (2) via a rotating shaft (3); the roller support (1) can rotate around the axis of the rotating shaft (3); when the positioning hole of the roller support (1) is coaxial with the limiting hole A of the fixed support (2) and connected via a pin shaft (4), the roller support (1) is in an upper swing position, which can meet the transportation state requirements of the road paving vehicle; when the positioning hole of the roller support (1) is coaxial with the limiting hole B of the fixed support (2) and connected via a pin shaft (4), the roller support (1) is in a lower swing position, which can meet the operation state requirements of the road paving vehicle; The three wheel axles (5) are respectively fixed in the connection holes B at the A end, the B end and the D end of the roller support (1); each wheel axle (5) is respectively installed with a roller (6) and a guide wheel (7); and the roller (6) and the guide wheel (7) are capable of rotating around the wheel axle (5); wherein the three rollers (6) on the three wheel axles (5) are located on the same side, and the three guide wheels (7) are located on the same side; an annular guide groove is processed on the outer circumferential surface of the guide wheel (7), and the annular guide groove is used for slidingly cooperating with the traction belt on the bottom surface of the pavement unit plate; The centers of the four connecting holes B of the roller support (1) located on the same trapezoidal plate are located on the same circle; The distances between the centers of the limiting holes A and B of the fixed support (2) and the center of the connecting hole A are both 75 mm, and the angle formed by the line connecting the centers of the limiting holes A and B and the center of the connecting hole A is 128°.

2. A guide roller mechanism for road paving and withdrawal as claimed in claim 1, characterized in that: The roller (6) and the guide wheel (7) are respectively mounted on the axle (5) via a shaft sleeve (8); the shaft sleeve (8) is used to reduce the friction between the roller (6) and the guide wheel (7) and the axle (5), so that the roller (6) and the guide wheel (7) can rotate around the axle (5).

3. A guide roller mechanism for road paving and withdrawal as claimed in claim 1, characterized in that: The wheel axle (5) and the rotating shaft (3) are both made of 40Cr steel.

4. A guide roller mechanism for road paving and withdrawal as claimed in claim 1, characterized in that: The roller support (1) and the fixed support (2) are both made of steel.

5. A guide roller mechanism for road paving and withdrawal as claimed in claim 1, characterized in that: The roller (6) and the guide wheel (7) are both made of non-metallic materials.

Images