CN219137309U

CN219137309U - Material conveying chain wheel capable of preventing materials from being blocked and paver

Info

Publication number: CN219137309U
Application number: CN202223168318.XU
Authority: CN
Inventors: 童卫东; 唐志军; 朱世永
Original assignee: Xuzhou XCMG Road Construction Machinery Co Ltd
Current assignee: Xuzhou XCMG Road Construction Machinery Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-06-06
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a material-blocking-preventing material conveying chain wheel and a paver in the technical field of road construction machinery, and aims to solve the problems that materials are accumulated and the working performance of the whole road construction machine is affected due to the fact that materials are conveyed into tooth grooves of the material conveying chain wheel in the prior art. According to the utility model, the material storage and discharging groove is added, the discharge of materials is accelerated, the accumulation of materials at the tooth space of the chain wheel is avoided, and the normal operation of the whole machine is ensured.

Description

Material conveying chain wheel capable of preventing materials from being blocked and paver

Technical Field

The utility model relates to a material conveying chain wheel capable of preventing materials from being blocked and a paver, and belongs to the technical field of road construction machinery.

Background

The paver is an engineering machine for construction operation of various road pavement base layers and surface layers, and is widely applied to pavement construction engineering of highways and various grades of highways. The paver conveying system is one important paver system and has the function of conveying the mixed material discharged by the material conveying truck to a material dividing groove at the rear part of the paver through a scraper conveying device.

The material conveying driving shaft of the paver is an important part in the material conveying system and provides power for the material conveying system so as to ensure that the material conveying system can operate according to the operation requirement of the whole paver. Wherein the material conveying chain wheel is an important part on the material conveying driving shaft, and the technical state of the material conveying chain wheel is very important to the normal rotation of the whole material conveying system.

The function of the existing paver material conveying system is achieved by driving a material conveying driving shaft through a power device, a material conveying chain wheel on the driving shaft drives a material conveying scraper to move from front to back through meshing with a material conveying scraper chain, and materials are brought into a rear material groove from a front hopper of the paver, so that the material conveying function is achieved. Due to the diversification of materials, in the working process, part of the materials are conveyed into tooth grooves of a conveying chain wheel and are rolled by a chain roller to be attached to the root parts of the tooth grooves, so that the materials are not easy to leak out. A small amount of material accumulation does not affect the operation performance of the whole machine, but larger material accumulation is attached to the root of a chain wheel to lift the chain, so that the chain is interfered and propped against the material conveying protection during running, and the chain is blocked when seriously pulled out to affect the normal operation performance of the whole machine.

Therefore, the improved paver conveying system reduces the height of materials attached to tooth grooves of the chain wheels, reduces material clamping, and has very important significance for improving the stability of the conveying system, reducing system faults and ensuring the normal operation of the whole paver.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a material conveying chain wheel capable of preventing materials from being blocked and a paver, which are provided with material storage and discharge grooves, so that the discharge of materials is accelerated, the accumulation of the materials at tooth grooves of the chain wheel is avoided, and the normal operation of the whole machine is ensured.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

on one hand, the utility model provides a material conveying chain wheel capable of preventing materials from being blocked, which comprises a chain wheel body, wherein a plurality of gear teeth are uniformly distributed on the chain wheel body, tooth grooves are formed between the gear teeth, a material storage and discharge groove for reducing material accumulation is arranged below the tooth grooves, and the top of the material storage and discharge groove is communicated with the tooth grooves through a discharging channel.

Optionally, the upper end of the blanking channel is provided with a blanking opening, the blanking opening and the tooth root round surface intersect in the whole tooth width, and the width range of the blanking opening is 4-5 mm.

Optionally, the intersection of the blanking opening and the tooth root circular surface adopts a circular arc design, and the radius of the circular arc is not more than 1mm.

Optionally, the unloading passageway is narrow down wide, and both sides adopt the inclined plane design, and the cross-section is trapezoidal wholly, the inclined plane is used for making things convenient for the unloading.

Optionally, the tooth root round surface adopts a double-center round tooth root round surface design, and the distance range of the double-center round center is 3-5 mm.

Optionally, the tooth has a thickness at the root of the tooth of no more than 6mm.

On the other hand, the utility model also provides a paver, which comprises the anti-jamming material conveying chain wheel.

Optionally, the material conveying sprocket is located the material conveying axle both ends, and all meshes with the material conveying chain, both sides be equipped with the material conveying bottom plate that is used for bearing the weight of the material between the material conveying chain.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the material storage and discharging groove is additionally arranged on the material conveying chain wheel, so that the material discharging capacity of the material conveying chain wheel is improved, the accumulation and attachment of materials on the tooth root round surface of the material conveying chain wheel are reduced, the material clamping problem is avoided, the normal engagement of the material conveying chain and the chain wheel and the normal operation function of the whole machine are ensured, and the working efficiency of the whole machine is improved;

the material conveying chain wheel designed by the utility model can realize free switching with the original material conveying chain wheel under the condition of not changing other related matched parts, thereby reducing the manufacturing cost of products.

Drawings

FIG. 1 is a schematic diagram of a front view of a feed sprocket for preventing jamming in an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure of a tooth space of a feeding sprocket for preventing jamming in an embodiment of the present utility model;

FIG. 3 is a schematic side cross-sectional view of a feed sprocket for preventing jamming in an embodiment of the present utility model;

FIG. 4 is a schematic view of a mounting structure of a material conveying sprocket on a paver according to an embodiment of the present utility model;

in the figure: 1 sprocket body, 2 teeth of a cogwheel, 3 tooth's socket, 4 storage chute, 5 unloading passageway, 6 feed opening, 7 root of a tooth round surface, 8 material conveying bottom plate, 9 material conveying sprocket, 10 material conveying chain, 11 material conveying axle.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Examples

As shown in fig. 1 to 3, the material-clamping-preventing material conveying sprocket provided by the embodiment of the utility model comprises a sprocket main body 1, a plurality of gear teeth 2 are uniformly distributed on the outer circumference of the sprocket main body 1, tooth grooves 3 are formed between the gear teeth 2 and the gear teeth 2, and material storage and discharge grooves 4 are respectively arranged below the tooth grooves 3.

The storage and discharge groove 4 is intersected with the tooth root round surface 7 through the blanking channel 5 in the whole tooth width, and the thickness of the chain wheel at the tooth root is not more than 6mm. To ensure the strength of the root surface 7, the center of the storage and discharge groove 4 and the root surface 7 should be kept at a suitable distance, typically not less than 5mm, and during operation, material may move from the tooth root (lowest position of the tooth slot 3, i.e. where the tooth slot 3 intersects the root surface 7) to the storage and discharge groove 4 below.

One end of the discharging channel 5 connected with the tooth root is provided with a discharging opening 6, and the discharging opening 6 is a downward moving inlet for materials attached to the tooth surface. The blanking opening 6 adopts the circular arc design, and the circular arc radius is not more than 1mm to for not influencing the normal operation function of complete machine, guarantee the normal meshing of defeated material chain 10 and sprocket, the width scope of blanking opening 6 is 4~5mm and is suitable, takes into account root intensity and material downshifting demand.

For smooth material movement, reduce the resistance that the material moved, unloading passageway 5 designs to narrow down and wide down, and both sides face adopts the inclined plane design, and the cross-section is whole trapezoidal, makes things convenient for the material to move down, and the material of gathering here is because receive equal pressure on whole tooth width, constantly breaks in unloading passageway 5 department, has strengthened the ability of unloading, avoids the material to gather in root of tooth circle 7 department.

The material conveying chain wheel 9 provided by the embodiment is used for transferring and discharging materials in time so as to ensure that accumulated materials of the tooth root round surface 7 automatically move in a controllable range and are discharged, the generation of clamping materials is avoided, and the working efficiency of the whole machine is improved.

Examples

The embodiment provides a paver, including the material conveying sprocket of anti-sticking material of embodiment 1, material conveying sprocket 9 locates the material conveying axle 11 both ends, and all carries material chain 10 to mesh, is equipped with the material conveying bottom plate 8 that is used for bearing the weight of the material between the material conveying chain 10 of both sides.

In some embodiments, since the conveyor chain 10 of the paver is a large pitch chain and the working environment is open, material intrusion is unavoidable. Therefore, when the material conveying chain wheel 9 of the paver is designed, a double-center circular tooth root circle design is adopted, the distance between two center circles is 3-5 mm, in the embodiment, the distance between two center positions of the tooth root circular surface 7 is 4mm, and therefore when the chain wheel is meshed with the chain, the maximum stress point of the chain wheel avoids the tooth root center, namely the position of a blanking hole, and therefore the chain and the chain wheel are meshed and the tooth root strength cannot be influenced.

The working principle of the utility model is as follows:

when the paver works, the material conveying chain 10 is meshed with the material conveying chain wheel 9, and the material conveying chain wheel 9 rotates to drive the material conveying chain 10 to move so as to convey materials from the front part to the rear part of the paver. During operation, the feed chain 10 is subjected to a high tensile force and, at the same time, the tooth flanks of the sprocket are also subjected to a high pressure, so that material cannot penetrate into the tooth flanks of the engagement surfaces of the feed sprocket 9 and the feed chain 10.

During the operation of the feed chain 10 and the feed sprocket 9, the material gradually adheres to the root surface 7 of the feed sprocket 9. Because the tooth root round surface 7 is designed with the feed opening 6 with the width range of 4-5 mm, the stress balance of the materials at the feed opening 6 can be broken, and the materials gradually move downwards into the storage and discharge groove through the feed opening 6 under the action of the chain pressure, so that the stress balance of the materials on the whole tooth root round surface 7 is broken, and the materials gradually move to the feed opening 6.

And the far-end material can gradually move to the feed opening 6 under the action of chain pressure and move into the storage and discharge groove 4 through the feed channel 5. In order to reduce the moving resistance of the materials in the moving process. The blanking channel 5 is of a trapezoid design, so that the resistance is smaller and smaller in the downward moving process of materials, and the materials are convenient to move.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The utility model provides a material conveying sprocket of anti-sticking material, includes the sprocket body, evenly laid a plurality of teeth of a cogwheel on the sprocket body, its characterized in that: a tooth groove is formed between the gear teeth, a storage and discharge groove for reducing accumulation of materials is arranged below the tooth groove, and the top of the storage and discharge groove is communicated with the tooth groove through a discharging channel.

2. The anti-jamming material conveying sprocket as set forth in claim 1, wherein: the upper end of the blanking channel is provided with a blanking opening, the blanking opening and the tooth root round surface intersect in the whole tooth width, and the width range of the blanking opening is 4-5 mm.

3. The anti-jamming material conveying sprocket as set forth in claim 2, wherein: the intersection of the blanking opening and the tooth root circular surface adopts a circular arc design, and the radius of the circular arc is not more than 1mm.

4. A jamming prevention feed sprocket as set forth in claim 3 wherein: the blanking channel is narrow in upper part and wide in lower part, inclined planes are adopted on two sides, the section of the blanking channel is integrally trapezoidal, and the inclined planes are used for facilitating blanking.

5. A jamming prevention feed sprocket as set forth in claim 3 wherein: the tooth root round surface adopts a double-center round tooth root round surface design, and the distance range of the double-center round center is 3-5 mm.

6. The anti-jamming material conveying sprocket as set forth in claim 1, wherein: the thickness of the gear teeth at the tooth root is not more than 6mm.

7. A paver, characterized in that: a feed sprocket comprising an anti-seize material according to any one of claims 1 to 6.

8. A paver according to claim 7, characterized in that: the material conveying chain wheels are arranged at two ends of the material conveying shaft and are meshed with the material conveying chains, and a material conveying bottom plate for bearing materials is arranged between the material conveying chains at two sides.