阅读说明：本技术 挖掘链单元、挖掘链和边坡清筛车 (Digging chain unit, digging chain and side slope screen cleaning vehicle ) 是由 岳文斌 陈炜 李胜 贺喜斌 张锦权 于 2019-11-19 设计创作，主要内容包括：本发明的实施例提供了一种挖掘链单元、挖掘链和边坡清筛车,涉及铁路道床道砟清理技术领域。挖掘链包括多个挖掘链单元,全部挖掘链单元依次首尾连接。挖掘链单元包括耙板组件、中间体及链销。耙板组件通过链销与中间体连接,链销的两端分别设置有限位结构,以防止链销脱离耙板组件或中间体。耙板组件包括用于挖掘道砟的耙齿,中间体用于将相邻两个耙板组件依次连接,以使多个挖掘链单元依次首尾相连形成挖掘链。本申请提供的清筛车在作业时,挖掘链在传动过程中能够通过耙板组件对道床边坡的道砟进行清理,无需对挖掘链进行频繁装拆,从而适用于铁路上道床边坡处的道砟清理,结构紧凑,使用方便,安全可靠,清理效率高。(The embodiment of the invention provides a digging chain unit, a digging chain and a side slope screen cleaning vehicle, and relates to the technical field of railway ballast cleaning. The digging chain comprises a plurality of digging chain units, and all the digging chain units are sequentially connected end to end. The digging chain unit includes a drag plate assembly, an intermediate body and a chain pin. The harrow plate assembly is connected with the intermediate body through the chain pin, and two ends of the chain pin are respectively provided with a limiting structure so as to prevent the chain pin from being separated from the harrow plate assembly or the intermediate body. The harrow plate assembly comprises harrow teeth for excavating the railway ballast, and the intermediate body is used for sequentially connecting two adjacent harrow plate assemblies so that a plurality of excavating chain units are sequentially connected end to form an excavating chain. The application provides a sieve cleaning vehicle is when the operation, and the digging chain can be cleared up the railway ballast on railway roadbed side slope through the harrow board subassembly in transmission process, need not to install and remove frequently the digging chain to be applicable to the railway ballast clearance of railway roadbed side slope department, compact structure, convenient to use, safe and reliable, the cleaning efficiency is high.)

1. An excavating chain unit comprising a drag plate assembly, an intermediate body and a chain pin;

the harrow plate assembly is connected with the intermediate body through the chain pin, and two ends of the chain pin are respectively provided with a limiting structure so as to prevent the chain pin from being separated from the harrow plate assembly or the intermediate body;

the harrow plate assemblies comprise harrow teeth for excavating the railway ballast, and the intermediate body is used for sequentially connecting two adjacent harrow plate assemblies so that a plurality of excavating chain units are sequentially connected end to form an excavating chain.

2. The excavating chain unit of claim 1 wherein the drag assembly includes a plate body defining a first connecting hole and the intermediate body defines a second connecting hole, and the chain pin extends through both the first and second connecting holes to articulate the drag assembly and the intermediate body.

3. The excavating chain unit of claim 2 wherein said chain pins include pin bodies, step sleeves and rollers;

the utility model discloses a structure, including the round pin body, the intermediate body, the gyro wheel cover, the round pin body wears to locate simultaneously first connecting hole with the second connecting hole, the ladder ways is located the both ends of the round pin body just include limit structure, limit structure is located keeping away from of ladder ways one side of intermediate, the gyro wheel cover is located the periphery of ladder ways, limit structure restriction the gyro wheel is followed the axial float of the round pin body.

4. The digging chain unit of claim 2, wherein the rake plate assembly further includes a rake palm fixedly disposed to the plate body and a rake tine fixedly disposed to the rake palm and extending in the digging direction.

5. The mining chain unit of claim 4, wherein the tine includes an interconnected tine sleeve and tine body, the tine body fixedly attached to the tine shank body, the tine sleeve attached to an end of the tine body distal from the plate body.

6. The excavating chain unit of claim 1 wherein the junction of the intermediate body and the drag assembly is further provided with a stop structure to limit the relative angle of rotation of the intermediate body and the drag assembly;

the stop structure comprises a stop groove and a stop piece, the stop groove is positioned in one of the middle body and the harrow plate assembly, the stop piece is positioned in the other one of the middle body and the harrow plate assembly, and the stop piece is clamped in the stop groove.

7. A digging chain comprising a plurality of digging chain units according to any one of claims 1 to 6, all of said digging chain units being connected end to end in sequence.

8. The mining chain of claim 7, wherein the rake assembly comprises a rake plate body and a rake tine fixedly disposed on the rake plate body;

a portion of the digging chain units are first digging chain units, another portion of the digging chain units are second digging chain units, the tines in the first digging chain units are first tines, the tines in the second digging chain units are second tines, and the direction of extension of the first tines is at an angle to the direction of extension of the second tines.

9. The excavating chain according to claim 7 wherein the drag plate assembly includes a plate body having a first stop groove and a first stop at each end along the drive direction, and a second stop groove and a second stop at each end along the drive direction, the first stop and the second stop groove being cooperatively engaged;

the chain unit is excavated, the chain unit is arranged in the middle, the first stop groove is connected with the second stop piece in a matched mode on the first side, the chain unit is excavated, the second stop piece is connected with the first stop groove in a matched mode on the second side.

10. A slope scarifier comprising an excavating chain according to any one of claims 7 to 9.

Technical Field

The invention relates to the technical field of railway ballast cleaning of railway ballast beds, in particular to a digging chain unit, a digging chain and a side slope screen cleaning vehicle.

Background

The railway track bed is an important part for ensuring the safe operation of the railway.

Because the ballast of the ballast bed is easy to be damaged in the using process, the cleanliness of the ballast bed, such as the ballast of a side slope of the ballast bed, is reduced. Therefore, the damaged railway ballast at the side slope needs to be dug out, and the ballast which can be recycled is screened out and then backfilled with the new railway ballast again.

Therefore, a device capable of cleaning the railway ballast on the side slope of the railway track bed needs to be designed.

Disclosure of Invention

The object of the invention consists, for example, in providing a digging chain unit, a digging chain and a scarifier, which are capable of cleaning ballast of a railway track bed side slope.

Embodiments of the invention may be implemented as follows:

in a first aspect, embodiments provide an excavating chain unit comprising a drag plate assembly, a middle body, and a chain pin;

the harrow plate assembly is connected with the intermediate body through the chain pin, and two ends of the chain pin are respectively provided with a limiting structure so as to prevent the chain pin from being separated from the harrow plate assembly or the intermediate body;

the harrow plate assemblies comprise harrow teeth for excavating the railway ballast, and the intermediate body is used for sequentially connecting two adjacent harrow plate assemblies so that a plurality of excavating chain units are sequentially connected end to form an excavating chain.

In an alternative embodiment, the rake plate assembly includes a plate body defining a first connecting aperture and the intermediate body defines a second connecting aperture, and the chain pin extends through both the first connecting aperture and the second connecting aperture to hingedly connect the rake plate assembly and the intermediate body.

In an alternative embodiment, the chain pin comprises a pin body, a stepped sleeve and a roller;

the utility model discloses a structure, including the round pin body, the intermediate body, the gyro wheel cover, the round pin body wears to locate simultaneously first connecting hole with the second connecting hole, the ladder ways is located the both ends of the round pin body just include limit structure, limit structure is located keeping away from of ladder ways one side of intermediate, the gyro wheel cover is located the periphery of ladder ways, limit structure restriction the gyro wheel is followed the axial float of the round pin body.

In an alternative embodiment, the harrow plate assembly further comprises a harrow plate body and harrow teeth, wherein the harrow plate body is fixedly arranged on the plate body, and the harrow teeth are fixedly arranged on the harrow plate body and extend along the excavating direction.

In an alternative embodiment, the rake teeth comprise a tooth sleeve and a tooth body which are connected with each other, the tooth body is fixedly connected to the rake palm body, and the tooth sleeve is connected to one end of the tooth body, which is far away from the plate body.

In an alternative embodiment, the joint of the middle body and the harrow plate assembly is also provided with a stop structure for limiting the relative rotation angle of the middle body and the harrow plate assembly;

the stop structure comprises a stop groove and a stop piece, the stop groove is positioned in one of the middle body and the harrow plate assembly, the stop piece is positioned in the other one of the middle body and the harrow plate assembly, and the stop piece is clamped in the stop groove.

In a second aspect, embodiments provide a digging chain comprising a plurality of digging chain units according to any one of the preceding embodiments, all of said digging chain units being connected end to end in sequence.

In an alternative embodiment, the harrow plate assembly comprises a harrow plate body and harrow teeth, wherein the harrow teeth are fixedly arranged on the harrow plate body;

a portion of the digging chain units are first digging chain units, another portion of the digging chain units are second digging chain units, the tines in the first digging chain units are first tines, the tines in the second digging chain units are second tines, and the direction of extension of the first tines is at an angle to the direction of extension of the second tines.

In an alternative embodiment, the harrow plate assembly comprises a plate body, wherein a first stop groove and a first stop piece are respectively arranged at two ends of the plate body along the transmission direction, a second stop groove and a second stop piece are respectively arranged at two ends of the intermediate body along the transmission direction, and the first stop piece is matched and clamped with the second stop groove;

the chain unit is excavated, the chain unit is arranged in the middle, the first stop groove is connected with the second stop piece in a matched mode on the first side, the chain unit is excavated, the second stop piece is connected with the first stop groove in a matched mode on the second side.

In a third aspect, embodiments provide a scarifier comprising the digging chain of any one of the preceding embodiments.

The beneficial effects of the embodiment of the invention at least comprise, for example:

the digging chain provided by the application is formed by sequentially connecting a plurality of digging chain units, and each digging chain unit comprises a harrow plate component, an intermediate body and a chain pin. The harrow plate assemblies and the middle body are connected through chain pins so that the harrow plate assemblies and the middle body can rotate relatively, and two adjacent harrow plate assemblies are connected through the middle body so that the adjacent harrow plate assemblies can rotate relatively. And the two ends of the chain pin are respectively provided with a limiting structure, so that the harrow plate component and the intermediate are not easy to separate.

Because the railway ballast environment of side slope department is different with the railway ballast environment near the sleeper, when the sieve cleaning vehicle is carrying out the clearance operation to the railway ballast near the railway roadbed sleeper, the digging chain need go deep into the bottom of sleeper to need carry out the dismouting around operation at every turn. When the cleaning vehicle is used for cleaning the ballast of the side slope of the railway bed, the digging chain does not need to go deep into the bottom of the sleeper, and further does not need to be frequently disassembled and assembled before and after each operation. The application provides a sieve cleaning vehicle is when the operation, and the digging chain can be cleared up the railway ballast on railway roadbed side slope through the harrow board subassembly in transmission process, need not to install and remove frequently the digging chain to be applicable to the railway ballast clearance of railway roadbed side slope department, and convenient to use, the cleaning efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a digging chain in an operating state;

FIG. 2 is an exploded view of a digging chain unit in a digging chain;

fig. 3 is a schematic view of the rake plate assembly of fig. 2 from a first perspective;

fig. 4 is a schematic view of the rake plate assembly of fig. 2 from a second perspective;

FIG. 5 is a schematic structural view of the gear sleeve of FIG. 2;

FIG. 6 is a schematic structural diagram of the intermediate of FIG. 2;

FIG. 7 is a cross-sectional view of the link pin of FIG. 2;

FIG. 8 is a schematic view of two adjacent digging chain units connected at a first perspective;

FIG. 9 is a schematic view of two adjacent digging chain units connected at a second perspective;

FIG. 10 is a schematic view of a portion of the digging chain in driving engagement with the sprocket.

Icon: 100-digging chain; 200-a frame; 300-a sprocket; 30-gear teeth; 10-a digging chain unit; 11-a first digging chain unit; 112-a first tine; 12-a second digging chain unit; 122-a second tine; 01-a rake plate assembly; 011-a plate body; 0113-first connecting hole; 0115-clamping the groove; 012-harrowing the palm; 013-rake teeth; 0133-tooth body; 0135-gear sleeve; 04-intermediate; 042-second connection hole; 045-wear sleeve; 05-a stop structure; 051-first stop groove; 052-a first stop; 053-a second detent; 054-a second stop; 06-chain pin; 061-pin body; 062-ladder cover; 0625-a limit structure; 063-roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.