CN215800813U - Synchronous feeder modified from asphalt mixture spreader - Google Patents

Abstract

The utility model discloses a synchronous feeder modified from an asphalt mixture spreader, which is used for solving the problem that no synchronous parallel operation equipment exists in the existing new and old pavement modification and extension projects. Traction adopts crawler-type engineering vehicle, including vehicle frame, hydraulic pressure station power device, crawler travel unit, driver's cabin, the hopper that gathers materials, bin gate and from the scraper conveyor of preceding back, still include belt conveyor and mechanical switch, wherein: extending a rear steering roller in the scraper conveyor to a rear end of the vehicle frame; the belt conveyor comprises a horizontal part and an inclined feeding part, the horizontal part is arranged below a rear steering roller of the scraper conveyor through a pull rod, an included angle is formed between the inclined upper part and the horizontal part, and the high point of the inclined upper part is positioned above a hopper of the asphalt mixture paver parallel to the inclined upper part. The equipment can be used in new and old road surface reconstruction and extension projects, and the reconstruction is based on the original vehicle mechanism, the modification is small, and the construction cost is low.

Description

Synchronous feeder modified from asphalt mixture spreader

Technical Field

The utility model relates to an asphalt mixture paving equipment technical field.

Background

The asphalt mixture paver is a mechanical device for uniformly paving an asphalt mixture on a road base. The hardware mechanical part of the asphalt mixture spreading machine consists of a traction mechanism, a spreading mechanism, a jolt ramming mechanism and an ironing mechanism. The traction generally adopts a crawler-type engineering vehicle as a working platform, adopts hydraulic power and comprises a vehicle frame, a hydraulic station power device, a crawler traveling device, a cab and the like. The spreading mechanism comprises a material collecting hopper, a material door, a scraper conveyer from front to back and a spiral spreader positioned at the rear end of the scraper conveyer. The compaction and ironing mechanism consists of an ironing plate, a thickness regulator, an arch degree regulator, a vibrator, a heating device and the like, and is used for compacting and ironing the asphalt mixture. The apparatus drawings refer to fig. 1 to 3.

The operation mode of the existing asphalt mixture paver is as follows:

during paving operation, referring to fig. 4, the front push roller of the paver pushes the rear wheel of the loading dump truck to advance and receive the asphalt mixture. The asphalt mixture discharged into the hopper is conveyed to the spiral paving chamber from front to back by two scraper conveyors which are independently driven from left to right at the bottom of the hopper, and the left and right gates of the hopper wall are respectively controlled after the feeding amount. The spiral paver is vertical to the scraper conveyor and is provided with a left spiral and a right spiral, and materials are uniformly paved towards the left side and the right side. And finally. The compaction and ironing section performs preliminary compaction and leveling of the mat by width, thickness and camber as the paver moves forward.

The technical problem is as follows:

in the road surface widening project, the existing asphalt road surface is arranged on the old road surface, the height of the existing asphalt road surface is obviously higher than that of the water stabilization layer of the asphalt road surface to be paved, and the height difference is usually more than 15 cm, namely, the serious height difference exists. According to the existing operation flow, the dump truck needs to travel from the old road surface to the road surface to be paved with asphalt, and in the process, the following adverse factors exist:

one disadvantage is that the dump truck needs to turn from the old asphalt pavement to the new asphalt pavement, and the dump truck has a height difference, which can crush the bonding interface between the old asphalt pavement and the new asphalt pavement, thereby causing local damage.

The second disadvantage is that the dump truck needs to turn from the old asphalt pavement to the new pavement, has a height difference, needs to travel carefully, and simultaneously has lower working efficiency.

The technical problem is solved by the method, and the method is used for improving the construction efficiency and the construction continuity.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a synchronous feeder modified by an asphalt mixture spreader, which is used for solving the problem that no special synchronous parallel operation equipment exists in the existing new and old pavement modification and expansion project.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

by the synchronous feeder of bituminous mixture paver repacking, pull and adopt crawler-type engineering vehicle, including vehicle frame, hydraulic pressure station power device, track running gear, driver's cabin, the hopper that gathers materials, bin gate and from preceding scraper conveyor backward, its characterized in that still includes belt conveyor and mechanical switch, wherein:

extending a rear steering roller in the scraper conveyor to a rear end of the vehicle frame;

the belt conveyor comprises a horizontal part and an inclined feeding part, the horizontal part is arranged below a rear steering roller of the scraper conveyor through a pull rod, an included angle is formed between the inclined upper part and the horizontal part, and the high point of the inclined upper part is positioned above a hopper of the asphalt mixture paver parallel to the inclined upper part.

The pull rods are at least designed into four groups so as to maintain enough stability.

The belt conveyor is composed of a main frame, a belt pulley, a hydraulic motor, a deviation rectifying roller and a carrier roller, and the hydraulic motor is connected with an oil circuit interface of the hydraulic motor of the original spiral paver.

The mechanical switch is arranged at the blanking part of the asphalt mixture arranged at the rear part of the vehicle frame.

The mechanical switch has two states: when the asphalt mixture continuously comes from the scraper conveyor, the mechanical switch is in a closed state, and the belt conveyor below the mechanical switch is controlled to act, so that the belt conveyor rotates; when no material is in the scraper conveyor, the mechanical switch is in an open circuit state, and the belt conveyor below the mechanical switch is controlled to stop acting.

The utility model has the beneficial effects that:

the asphalt mixture spreading machine is refitted into the synchronous feeder to form a special machine which can be used in new and old pavement reconstruction and expansion projects, and the refitting is based on the original vehicle mechanism, has small modification and low labor cost, and has positive popularization significance.

Drawings

Fig. 1 shows a prior art asphalt mixture spreader.

Fig. 2 is a front view of the asphalt mixture spreader.

Fig. 3 is a rear view of the asphalt mixture spreader.

Fig. 4 is a view showing the operation of the asphalt mixture spreader in cooperation with a dump truck.

FIG. 5 is a diagram of the combined operation of the present invention.

Fig. 6 is a rear view of the synchronous feeder.

Fig. 7 is a front view of the synchronous feeder.

Fig. 8 is a schematic view of the installation of the belt conveyor.

Fig. 9 is a partial sectional view of the belt conveyor.

Fig. 10 is a perspective view of the drawbar.

FIG. 11 is a floor plan of the combined operation.

In the figure: .

Detailed Description

The hardware mechanical part of the asphalt mixture spreading machine consists of a traction mechanism, a spreading mechanism, a jolt ramming mechanism and an ironing mechanism. The traction generally adopts a crawler-type engineering vehicle as a working platform, adopts hydraulic power, and comprises a vehicle frame, a hydraulic station power device, a crawler traveling device 15, a cab and the like. The spreading mechanism comprises a material collecting hopper 11, a material door, a scraper conveyer 12 from front to back and a screw spreader 13 positioned at the rear end of the scraper conveyer. The compaction and ironing mechanism 14 consists of an ironing plate, a thickness regulator, an arch degree regulator, a vibrator, a heating device and the like, and is used for compacting and ironing the asphalt mixture. The apparatus drawings refer to fig. 1 to 3.

A method for changing the asphalt mixture paver into a synchronous feeder, the synchronous feeder 20 is based on the modification of the asphalt mixture paver, specifically, prepare a asphalt mixture paver 10 with complete functions, remove the compacting and ironing mechanism 14 and the spiral paver 13 of the original functional components on the asphalt mixture paver, and improve the scraper conveyor after removing, the specific improvement method is that the scraper chain plate in the scraper conveyor is extended and the rear steering roller 231 in the scraper conveyor is extended to the rear end of the vehicle frame to form a scraper conveyor 23 with longer length, so that the rear end of the scraper conveyor is suspended and positioned outside the vehicle frame, namely, in a suspended state, thus, the asphalt mixture in the hopper of the original vehicle can be conveyed from front to back along the extended scraper conveyor.

For ease of distinction and understanding, the aggregate hopper and flight conveyor in the retrofitted synchronous feeder are labeled with reference numerals 22 and 23, respectively, i.e., aggregate hopper 22 and flight conveyor 23.

Referring to fig. 6 to 10, a set of belt conveyors 21, specifically, belt conveyors with corners, is designed and installed at the rear lower part of the vehicle, and includes a horizontal part 211 and an inclined feeding part 212, wherein the horizontal part is installed at the rear lower part of the vehicle frame, specifically, below the rear steering rollers 121 of the scraper conveyor, so that asphalt mixture from the scraper conveyor falls down and just falls on the horizontal part 211 of the belt conveyor, specifically, on the conveying belt, the horizontal part 211 is installed on the vehicle frame by means of diagonally arranged tie rods 24, and the tie rods are designed at least in four sets, so as to maintain sufficient stability.

The two ends of the pull rod 24 are respectively connected with the corresponding belt conveyor and the frame through steel pins or steel nails.

The inclined upward part 212 and the horizontal part form an included angle, the belt is arranged along the two parts, and the high point 2121 of the inclined upward part is positioned above the hopper of the asphalt mixture paver 10 parallel to the inclined upward part, namely, the purpose of feeding the asphalt mixture from the scraper conveyor in the modified synchronous feeder to the position above the hopper of the asphalt mixture paver parallel to the scraper conveyor is realized through the arrangement of the belt conveyor.

The power driving hydraulic motor in the belt conveyor 21 uses the hydraulic motor oil way interface in the original screw paver, so that the complex reconstruction of a hydraulic pipeline is not needed.

The belt conveyor consists of a main frame, a belt pulley, a hydraulic motor, a deviation rectifying roller and a carrier roller, belongs to the conventional technology in the field, and the embodiment is not described in detail.

Furthermore, a mechanical switch is arranged at the blanking end (i.e. the rear end) of the scraper conveyor in the modified synchronous feeder 10, the mechanical switch is mounted at the rear part of the vehicle frame through a cantilever and is located at the blanking part of the asphalt mixture, and the mechanical switch is used for controlling the action of the belt conveyor below, specifically the action of a hydraulic motor on the belt conveyor, so that the belt part continuously rotates when the asphalt mixture continuously comes from the scraper conveyor. When no material is in the scraper conveyor, the mechanical switch is in an open circuit state, and the belt conveyor below the mechanical switch is controlled to stop acting.

A construction method for parallel synchronous feeding and paving,

in the construction method, referring to fig. 5, firstly, the asphalt mixture spreader 10 is placed on the roadbed to be paved, and in parallel with the roadbed to be paved, a modified synchronous feeder 20 is placed on the old pavement, and the running speed parameters of the two feeders are set to be the same, that is, the two devices run in parallel, synchronously and at the same speed. The dump truck pours the asphalt mixture into a hopper in the synchronous feeder, and continuously feeds the asphalt mixture to the asphalt mixture paver beside the synchronous feeder, so that the aim of linking the two devices is fulfilled. The conveying path of the asphalt mixture in the synchronous feeder and the paver refers to the path illustrated in fig. 11.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention, and various modifications and improvements of the present invention by those skilled in the art without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.

Claims (4)

1. By the synchronous feeder of bituminous mixture paver repacking, draw and adopt crawler-type engineering vehicle, including vehicle frame, hydraulic pressure station power device, track running gear, driver's cabin, the hopper that gathers materials, bin gate and from the scraper conveyor who leads to the back, its characterized in that still includes belt conveyor (21) and mechanical switch, wherein:

extending a rear steering roller (231) in the scraper conveyor to a rear end of the vehicle frame;

the belt conveyor comprises a horizontal part (211) and an inclined feeding part (212), the horizontal part is arranged below a rear steering roller (121) of the scraper conveyor through a pull rod, an included angle is formed between the inclined upward part (212) and the horizontal part, and a high point (2121) of the inclined upward part is positioned above a hopper of the asphalt mixture paver (10) which is parallel to the inclined upward part;

the mechanical switch is arranged at the blanking part of the asphalt mixture arranged at the rear part of the vehicle frame.

2. The feeder apparatus of claim 1, wherein the tie bars are arranged in at least four groups to maintain sufficient stability.

3. The synchronous feeder modified from an asphalt mixture spreader according to claim 1, wherein the belt conveyor consists of a main frame, a belt pulley, a hydraulic motor, a deviation rectifying roller and a carrier roller, and the hydraulic motor is connected with a hydraulic motor oil path interface of the original screw spreader.

4. The synchronous feeder modified from an asphalt mixture spreader according to claim 1, wherein the mechanical switch has two states: when the asphalt mixture continuously comes from the scraper conveyor, the mechanical switch is in a closed state, and the belt conveyor below the mechanical switch is controlled to act, so that the belt conveyor rotates; when no material is in the scraper conveyor, the mechanical switch is in an open circuit state, and the belt conveyor below the mechanical switch is controlled to stop acting.

Images