Railway ballast screening machine

Abstract

The utility model discloses a railway ballast screening machine which comprises a bucket excavator arranged above a sleeper track, the bucket excavator comprises a machine body, a driving arm is arranged on the machine body, a bucket is installed at the front end of the driving arm, a caterpillar band chassis is installed at the bottom of the machine body, and the caterpillar band chassis is arranged on the machine body. The screening assembly is arranged on the front side of the bucket excavator and used for screening, and supporting and walking assemblies used for supporting and walking on sleeper rails are arranged on the front side and the rear side of the machine body. According to the railway ballast screening machine, in the railway ballast screening operation process, through mutual cooperation of the screening assembly and the supporting walking assembly, rapid screening operation on dirty ballast below a railway track is achieved, and in the screening process, the screening efficiency is greatly improved. And movement of the screening position, high-strength vibration screening and outward conveying of screened materials can be carried out at the same time, and the screening efficiency of dirty ballast below a railway track is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway construction and maintenance, and specifically relates to a railway ballast screening machine. Background Art

[0002] The existing railway ballast screening mainly uses mesh buckets for screening, which has low efficiency and incomplete screening, becoming a major bottleneck in railway ballast screening operations. With the development of society and the progress of science, turnout ballast screening machines have been developed in the existing technology. However, the screening machines in the existing technology have the defects of low efficiency, inability to use multiple machines, and high price.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] A railway ballast screening machine includes a bucket excavator disposed above a sleeper track, the bucket excavator including a machine body, a driving arm disposed on the machine body, a bucket mounted at the front end of the driving arm, a crawler chassis mounted at the bottom of the machine body, a screening assembly disposed at the front side of the bucket excavator for screening, and supporting travel assemblies disposed at the front and rear sides of the machine body for supporting travel on the sleeper track.

[0006] The screening assembly comprises a mounting base, a vibrating screening machine is mounted on the mounting base, and a conveying device for conveying the screened material to the outside is provided on the mounting base.

[0007] The conveying equipment is a conveyor belt, and the conveyor belt is installed and fixed below the vibrating screening machine.

[0008] The supporting walking assembly includes a mounting frame, one end of the mounting frame is rotatably mounted on one side of the machine body through a rotating pin, a supporting frame is fixed to the side of the mounting frame away from the machine body, and both ends of the supporting frame are rotatably connected to rail wheels for supporting against the upper end of the sleeper track. A lifting assembly for lifting the supporting frame is provided on the machine body, and the mounting seat is located at the front side of the supporting frame, and the mounting seat and the supporting frame are connected and fixed by a fixing frame.

[0009] The lifting assembly includes an oil cylinder arranged between the machine body and the support frame. The output end and the bottom of the oil cylinder are respectively rotatably connected to the first connecting plate and the second connecting plate. One end of the first connecting plate is fixed to one side of the machine body, and the second connecting plate is fixed to the support frame.

[0010] The conveyor belt is a telescopic conveyor belt.

[0011] The vibrating screening machine is equipped with one or more high-frequency exciters.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The railway ballast screening machine of the present invention realizes the rapid screening operation of the dirty ballast under the railway track through the mutual cooperation of the screening component and the supporting walking component during the railway ballast screening operation. During the screening process, the screening position can be moved, high-intensity vibration screening and the screened material can be transported outward at the same time, thereby ensuring the efficiency of screening the dirty ballast under the railway track.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached figure:

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the conveyor belt structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the support walking component of the utility model;

[0019] Figure 4 This is a schematic diagram of the top view of the utility model;

[0020] Figure 5 This is a schematic diagram of the lifting component structure of the utility model.

[0021] In the figure: 1-sleeper track; 201-machine body; 202-driving arm; 203-bucket; 204-crawler chassis; 301-mounting seat; 302-vibrating screening machine; 4-conveyor belt; 501-mounting frame; 502-support frame; 503-rail wheel; 601-oil cylinder; 602-first connecting plate; 603-second connecting plate; 7-fixing frame. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0023] like Figures 1 to 5As shown, a railway ballast screening machine includes a bucket excavator arranged above a sleeper track 1. The bucket excavator includes a body 201, a driving arm 202 is provided on the body 201, a bucket 203 is mounted on the front end of the driving arm 202, a crawler chassis 204 is mounted on the bottom of the body 201, and further includes a screening assembly arranged at the front side of the bucket excavator for screening. Support and walking assemblies for supporting walking on the sleeper track 1 are provided on the front and rear sides of the body 201;

[0024] The screening assembly includes a mounting base 301, on which a vibrating screening machine 302 is mounted, and a conveying device for conveying the screened material to the outside is provided on the mounting base 301;

[0025] During the railway ballast screening operation, the screening components and the supporting walking components cooperate with each other to realize the rapid screening operation of the dirty ballast under the railway track. During the screening process, the screening position can be moved, high-intensity vibration screening and the screened material can be transported outwards at the same time, ensuring the efficiency of the screening of dirty ballast under the railway track.

[0026] The conveying device is a conveyor belt 4, which is installed and fixed below the vibrating screening machine 302; the conveyor belt 4 facilitates the conveyance of the screened materials toward both sides.

[0027] The supporting walking assembly includes a mounting frame 501, one end of the mounting frame 501 is rotatably mounted on one side of the machine body 201 through a rotating pin, a support frame 502 is fixed to the side of the mounting frame 501 away from the machine body 201, and both ends of the support frame 502 are rotatably connected to rail wheels 503 for supporting against the upper end of the sleeper track 1, and a lifting assembly for lifting the support frame 502 is provided on the machine body 201, the mounting seat 301 is located at the front side of the support frame 502, and the mounting seat 301 and the support frame 502 are connected and fixed by a fixing frame 7; the machine body 201 is conveniently supported by the rail wheels 503 on the support frame 502.

[0028] The lifting assembly includes an oil cylinder 601 arranged between the machine body 201 and the support frame 502. The output end and the bottom of the oil cylinder 601 are rotatably connected to the first connecting plate 602 and the second connecting plate 603 respectively. One end of the first connecting plate 602 is fixed to one side of the machine body 201, and the second connecting plate 603 is fixed to the support frame 502. The support frame 502 is driven to rise and fall by the drive of the oil cylinder 601 and the connection between the first connecting plate 602 and the second connecting plate 603. When descending, the rail wheel 503 and the sleeper track 1 can be supported for walking and operation. When rising, the rail wheel 503 is retracted to realize the crawler walking function.

[0029] The conveyor belt 4 is a retractable conveyor belt 4; the retractability of the conveyor belt 4 facilitates flexible discharge operations to different positions.

[0030] The vibration screening machine 302 has one or more high-frequency exciters built in; the high-frequency exciters are used to improve the effect of vibration screening.

[0031] During the railway ballast screening operation, the entire device is moved onto the sleeper track 1 by the crawler chassis 204. After the movement is completed, the support frame 502 is driven downward by the lifting assembly. During the downward movement of the support frame 502, the rail wheels 503 are abutted against the upper end of the sleeper track 1. The abutment between the rail wheels 503 and the sleeper track 1 supports the entire device, making it easier for the auxiliary device to move on the sleeper track 1.

[0032] During the walking process, the driving arm 202 drives the bucket 203 to dig out the dirty ballast on the inner side of the sleeper track 1. After digging, the dirty ballast is poured onto the vibrating screening machine 302, and the vibrating screening machine 302 is used to screen the dirty ballast. During the screening process, the ballast falls onto the roadbed through one side of the vibrating screening machine 302, and the screened soil and fine sand fall onto the conveyor belt 4 and are discharged in the direction of the extended conveyor belt 4, thereby realizing the rapid screening operation of the dirty ballast under the railway track. The screening position can be moved, high-intensity vibration screening can be performed, and the screened material can be transported outward at the same time, thereby ensuring the efficiency of screening the dirty ballast under the railway track.

Claims

1. A railway ballast screening machine comprising: A bucket excavator is arranged above a sleeper track (1), the bucket excavator comprising a body (201), a driving arm (202) being arranged on the body (201), a bucket (203) being mounted at the front end of the driving arm (202), and a crawler chassis (204) being mounted at the bottom of the body (201); It is characterized by further comprising: A screening assembly for screening is provided at the front side of the excavator, and support and walking assemblies for supporting and walking on the sleeper rail (1) are provided on the front and rear sides of the machine body (201); The screening assembly comprises a mounting seat (301), a vibrating screening machine (302) is mounted on the mounting seat (301), and a conveying device for conveying the screened material to the outside is provided on the mounting seat (301); The supporting walking assembly comprises a mounting frame (501), one end of the mounting frame (501) is rotatably mounted on one side of the machine body (201) via a rotating pin, a supporting frame (502) is fixed on the side of the mounting frame (501) away from the machine body (201), both ends of the supporting frame (502) are rotatably connected to rail wheels (503) for supporting against the upper end of the sleeper track (1), a lifting assembly for lifting the supporting frame (502) is provided on the machine body (201), the mounting seat (301) is located at the front side of the supporting frame (502), and the mounting seat (301) and the supporting frame (502) are connected and fixed via a fixing frame (7).

2. A railway ballast screening machine according to claim 1, characterized in that: The conveying equipment is a conveyor belt (4), and the conveyor belt (4) is installed and fixed below the vibrating screening machine (302).

3. The railway ballast screening machine according to claim 2, characterized in that: The lifting assembly comprises an oil cylinder (601) arranged between the machine body (201) and the support frame (502); the output end and the bottom of the oil cylinder (601) are rotatably connected to a first connecting plate (602) and a second connecting plate (603), respectively; one end of the first connecting plate (602) is fixed to one side of the machine body (201), and the second connecting plate (603) is fixed to the support frame (502).

4. The railway ballast screening machine according to claim 3, characterized in that: The conveyor belt (4) is a telescopic conveyor belt (4).

5. The railway ballast screening machine according to claim 1, characterized in that: The vibrating screening machine (302) has one or more high-frequency exciters built in.

Images