Coal plough

Abstract

A kind of coal scraping device for plough coal machine. Impact force will be generated when coal block in motion is stopped by plough coal plate, and the impact force will directly contact with plough coal plate and be transmitted to linear motor. Under the continuous impact, the connectivity between linear motor and plough coal plate will be affected, and the service life of linear motor will be reduced. The utility model discloses a base is provided with conveyor belt on the top, and the top of conveyor belt is provided with plough, and one end of plough top is fixedly connected with fixed block, and the other end of plough top is fixedly connected with slide rod, and one end of base top is fixedly connected with fixed frame, and the other end of base top is fixedly connected with portal frame, and the middle position of fixed frame top wall is fixedly connected with hydraulic cylinder, and the inside of portal frame is provided with hidden groove for the up and down sliding of slide rod, and the both ends of plough outer side wall are fixedly connected with sliding block. The utility model is used for scraping coal.

Description

Technical Field

[0001] This utility model relates to a coal scraping device for a coal plow. Background Technology

[0002] Coal plows are indispensable unloading devices in industrial production. They generally consist of a plow blade, a plow plate, and a hydraulic push rod drive component. When unloading is required, the hydraulic push rod extends through the push rod drive rod to lower the plow head, and then the lifting roller assembly is raised simultaneously through the linkage mechanism, so that the plow plate under the plow blade is in contact with the upper surface of the conveyor belt, thereby achieving unloading. When not in use, the coal plow can be raised by the hydraulic push rod.

[0003] A current coal plow, as described in patent CN110775599A, comprises: a support frame, a plow plate, a pair of vertically arranged lifting hydraulic cylinders, a linear electric push rod, and multiple sets of idler rollers mounted on the upper part of the support frame, with belts mounted on the upper surfaces of the idler rollers. The plow plate is composed of plow blades symmetrically arranged on both sides and integrally formed. The pair of vertically arranged lifting hydraulic cylinders are respectively located on the front and rear sides of the belt, and the cylinder barrels of both vertically arranged lifting hydraulic cylinders are fixedly connected to the support frame. The piston rod ends of the pair of vertically arranged lifting hydraulic cylinders are fixedly connected to a horizontally arranged crossbeam. The seat of the linear electric push rod is hinged to the upper end of the rotating arm, and the lower end of the rotating arm is hinged to the upper end of the crossbeam. The rod end of the linear electric push rod is hinged to the upper right end of the plow plate. This coal plow has a simple structure and is easy to install and maintain.

[0004] Regarding the aforementioned technologies, the applicant believes that a coal plow, during operation, uses the extension and retraction of a linear motor to move and support the plow plate. During transmission, the moving coal needs to be stopped and scraped off. When the moving coal is stopped by the plow plate, it generates an impact force, which directly contacts the plow plate and is transmitted to the linear motor. Over time, this continuous impact will affect the connection between the linear motor and the plow plate, reducing the lifespan of the linear motor. Utility Model Content

[0005] The purpose of this utility model is to provide a coal scraping device for a coal plow, in order to solve the problem in the prior art where the device moves and supports the coal plow plate by extending and retracting a linear motor. However, during the transmission process, the moving coal needs to be stopped and scraped off. When the moving coal is stopped by the coal plow plate, it generates an impact force, which directly contacts the coal plow plate and is transmitted to the linear motor. Over time, the continuous impact will affect the connection between the linear motor and the coal plow plate, reducing the service life of the linear motor.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A coal scraping device for a coal plow includes a base, a conveyor belt at the top of the base, a plow blade at the top of the conveyor belt, a fixed block fixedly connected to one end of the top of the plow blade, a sliding rod fixedly connected to the other end of the top of the plow blade, a fixed frame fixedly connected to one end of the top of the base, a gantry frame fixedly connected to the other end of the top of the base, a hydraulic cylinder fixedly connected to the middle of the top wall of the fixed frame, a hidden groove for the sliding rod to slide up and down inside the gantry frame, sliding blocks fixedly connected to both ends of the outer wall of the plow blade, and grooves for the sliding blocks to move up and down inside the fixed frame.

[0008] The coal scraping device for a coal plow described above has a T-shaped cross-section for the sliding block.

[0009] The coal scraping device for a coal plowing machine, wherein the base, the fixed frame, and the gantry frame form an integrated welded structure.

[0010] In the aforementioned coal scraping device for a coal plow, the telescopic end of the hydraulic cylinder is fixedly connected to the top of the fixed block.

[0011] The coal scraping device for a coal plow includes a fixed seat on one side of the outer wall of the base, a rotary motor fixedly connected to one side of the outer wall of the fixed seat, a gear fixedly connected to the outer wall of the output shaft of the rotary motor, a rack on the other side of the outer wall of the fixed seat, sliders fixedly connected to both ends of the outer wall of the rack, a sliding groove on the outer wall of the fixed seat, and a rotating wheel rotatably connected to the bottom end of one side of the outer wall of the rack.

[0012] In the aforementioned coal scraping device for a coal plow, the outer wall of the rotating wheel abuts against the inner wall of the conveyor belt.

[0013] The coal scraping device for a coal plowing machine is described above, wherein the chute and the slider are slidably connected. Beneficial effects

[0014] 1. This utility model, by setting up a base, a fixed frame, a sliding block, a fixed block, a hydraulic cylinder, a sliding rod, and a gantry frame, directly resists the impact force of the plow scraping coal through the sliding connection between the sliding block and the fixed frame, and between the sliding rod and the gantry frame. This allows the hydraulic cylinder to only play a lifting and lowering role during use, preventing the impact force of the coal block from being transmitted to the connection between the hydraulic cylinder and the plow blade, ensuring the stability of the connection between the hydraulic cylinder and the plow blade, and effectively extending the service life of the hydraulic cylinder.

[0015] 2. This utility model, by setting up a fixed base, a rotary motor, a slider, a rack, a gear, a rotating wheel, and a slide groove, achieves the up-and-down lifting of the rotating wheel through the cooperation of the components. When the rotating wheel abuts against the inner wall of the conveyor belt, it can adjust the tension of the conveyor belt, thereby improving the stability of the plow blade against the conveyor belt when scraping material and further improving the coal scraping effect. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the left side of the fixing base of this utility model;

[0020] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] In the diagram: 1. Base; 2. Plow blade; 3. Conveyor belt; 4. Sliding block; 5. Fixed block; 6. Fixed seat; 7. Sliding rod; 8. Gantry frame; 9. Fixed frame; 10. Hydraulic cylinder; 11. Rotary motor; 12. Slider; 13. Rack; 14. Gear; 15. Rotating wheel; 16. Slide groove. Detailed Implementation

[0022] like Figure 1-5As shown, a coal scraping device for a coal plow includes a base 1, a conveyor belt 3 at the top of the base 1, a plow blade 2 at the top of the conveyor belt 3, a fixed block 5 at one end of the top of the plow blade 2, and a slide rod 7 at the other end of the top of the plow blade 2. A fixed frame 9 is fixedly connected to one end of the top of the base 1, and a gantry frame 8 is fixedly connected to the other end of the top of the base 1. The base 1, the fixed frame 9, and the gantry frame 8 form an integrated welded structure. A hydraulic cylinder 10 is fixedly connected to the middle position of the top wall of the fixed frame 9, and the telescopic end of the hydraulic cylinder 10 is fixedly connected to the top of the fixed block 5. The gantry frame 8 has a hidden groove inside for the slide rod 7 to slide up and down. Sliding blocks 4 are fixedly connected to both ends of the outer wall of the plow blade 2. The sliding blocks 4 have a T-shaped cross-section. The fixed frame 9 has a groove inside for the sliding blocks 4 to move up and down. When unloading coal, the fixed frame 9 is activated, and the fixed block 7 is pushed by the telescopic end of the fixed frame 9. Block 5 moves downwards, causing the fixed block 5 to move downwards simultaneously, which in turn drives the plow blade 2 downwards. The downward movement of the plow blade 2 also drives the sliding rod 7 and sliding block 4 downwards, causing the sliding rod 7 to move inside the gantry frame 8 and the sliding block 4 to move inside the fixed frame 9, until the bottom end of the plow blade 2 abuts against the top end of the conveyor belt 3. When the coal material comes into contact with one end of the plow blade 2 during transport, the coal is unloaded. Coal collection boxes are placed on both sides of the conveyor belt 3 to collect the scraped coal. The connection between the sliding block 4 and the fixed frame 9, and between the sliding rod 7 and the gantry frame 8, resists the impact of the coal, preventing direct contact between the impact force and the hydraulic cylinder 10, thus ensuring the stability of the connection between the hydraulic cylinder 10 and the plow blade 2 while stably scraping the coal.

[0023] A fixed seat 6 is provided on one side of the outer wall of the base 1. A rotary motor 11 is fixedly connected to one side of the outer wall of the fixed seat 6. A gear 14 is fixedly connected to the outer wall of the output shaft of the rotary motor 11. A rack 13 is provided on the other side of the outer wall of the fixed seat 6. Slider 12s are fixedly connected to both ends of the outer wall of the rack 13. A groove 16 is provided on the outer wall of the fixed seat 6. The groove 16 and the slider 12 are slidably connected. A rotating wheel 15 is rotatably connected to the bottom end of one side of the outer wall of the rack 13. The outer wall of the rotating wheel 15 abuts against the inner wall of the conveyor belt 3. When adjusting the tension of the conveyor belt 3, the rotary motor 11 is started. The rotating motor 11 drives the gear 14 to rotate via the output shaft. The rotation of the gear 14 causes the rack 13 to move downward, and the downward movement of the rack 13 causes the slider 12 to slide downward inside the groove 16. This causes the outer wall of the rotating wheel 15 at the bottom of the rack 13 to abut against the inner wall of the conveyor belt 3, thereby adjusting the tension of the conveyor belt 3. This ensures that the bottom of the plow blade 2 is always in contact with the coal when scraping it, preventing the coal from leaking out from the bottom of the plow blade 2 and further improving the scraping effect when scraping the coal.

[0024] Working principle: First, when unloading coal, the fixed frame 9 is activated. The telescopic end of the fixed frame 9 pushes the fixed block 5 downward, so that the fixed block 5 moves downward simultaneously, driving the plow blade 2 downward. The downward movement of the plow blade 2 also drives the sliding rod 7 and the sliding block 4 downward, so that the sliding rod 7 moves inside the gantry frame 8 and the sliding block 4 moves inside the fixed frame 9 until the bottom end of the plow blade 2 abuts against the top end of the conveyor belt 3. When the coal comes into contact with one end of the plow blade 2 during transportation, the coal is unloaded. Boxes for collecting coal are placed on both sides of the conveyor belt 3 to collect the scraped coal. The connection between the sliding block 4 and the fixed frame 9, and between the sliding rod 7 and the gantry frame 8, resists the impact of the coal and prevents the impact force from directly contacting the hydraulic cylinder 10, which would damage the stability of the connection between the hydraulic cylinder 10 and the plow blade 2. This further improves the stability of the connection between the hydraulic cylinder 10 and the plow blade 2 while stably scraping the coal.

[0025] Finally, when adjusting the tension of the conveyor belt 3, the rotary motor 11 is started. The rotary motor 11 and the output shaft drive the gear 14 to rotate. The rotation of the gear 14 drives the rack 13 to move downward. The downward movement of the rack 13 drives the slider 12 to slide downward inside the groove 16. This causes the outer wall of the rotating wheel 15 at the bottom of the rack 13 to abut against the inner wall of the conveyor belt 3, thereby adjusting the tension of the conveyor belt 3. This ensures that the bottom of the plow blade 2 is always in contact with the coal when scraping it, preventing the coal from leaking out from the bottom of the plow blade 2 and further improving the scraping effect when scraping the coal.

Claims

1. A coal scraper for a coal plow, comprising a base, characterized in that: A conveyor belt is provided at the top of the base, and a plow blade is provided at the top of the conveyor belt. A fixing block is fixedly connected to one end of the top of the plow blade, and a sliding rod is fixedly connected to the other end of the top of the plow blade. A fixing frame is fixedly connected to one end of the top of the base, and a gantry frame is fixedly connected to the other end of the top of the base. A hydraulic cylinder is fixedly connected to the middle of the top wall of the fixing frame. A hidden groove is provided inside the gantry frame for the sliding rod to slide up and down. Sliding blocks are fixedly connected to both ends of the outer wall of the plow blade, and a groove is provided inside the fixing frame for the sliding blocks to move up and down.

2. The coal scraper for a coal plow as described in claim 1, characterized in that: The cross-section of the sliding block is T-shaped.

3. The coal scraper for a coal plow as described in claim 1, characterized in that: The base, the fixing frame, and the gantry frame form an integrated welded structure.

4. The coal scraper for a coal plow as described in claim 1, characterized in that: The telescopic end of the hydraulic cylinder is fixedly connected to the top of the fixed block.

5. A coal scraper for a coal plow as described in claim 1, characterized in that: A fixed seat is provided on one side of the outer wall of the base. A rotary motor is fixedly connected to one side of the outer wall of the fixed seat. A gear is fixedly connected to the outer wall of the output shaft of the rotary motor. A rack is provided on the other side of the outer wall of the fixed seat. Slider blocks are fixedly connected to both ends of the outer wall of the rack. A sliding groove is opened on the outer wall of the fixed seat. A rotating wheel is rotatably connected to the bottom end of one side of the outer wall of the rack.

6. A coal scraper for a coal plow according to claim 5, characterized in that: The outer wall of the rotating wheel abuts against the inner wall of the conveyor belt.

7. A coal scraper for a coal plow according to claim 6, characterized in that: The groove and the slider are slidably connected.

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