Lifting coal return cover for scraper conveyer
By driving the motor to drive the worm gear reducer and the winding roller, combined with the sliding groove and limit rod structure, the problem of increasing costs and pollution in the lifting and lowering of the hydraulic cylinder control insert assembly is solved, and the low-cost maintenance and high efficiency of the scraper conveyor is achieved Cleaning extends the service life of the wire rope.
Patent Information
- Application Number
- CN202421209627.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The lifting and lowering of hydraulic cylinder control panel components for existing scraper conveyors increases the cost of the device, and causes contamination and maintenance of hydraulic systems in humid and dusty environments, increasing maintenance costs.
The drive motor drives the worm gear reducer and coil roller, and the maintenance port insert is lifted and lowered through the wire rope. Combined with the sliding groove and limit rod structure, reduce friction and wear, and clean coal ash through the conveyor belt to reduce maintenance difficulty and cost.
It realizes the reduction of equipment maintenance difficulty and maintenance costs under the premise of saving labor, extends the service life of the wire rope, and improves the cleaning efficiency and safety of the equipment.
Smart Images
Figure CN222292706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scraper conveyors, in particular to a lifting coal return cover for scraper conveyors. Background Art
[0002] Scraper conveyor is a common material conveying equipment, mainly used for conveying powder, granular or small block materials. It consists of a frame, chain, scraper, drive device and other parts. The working principle is to use the chain to drive the scraper, and the material is conveyed from one end to the other end through the movement of the scraper. The coal return hood is a device installed at the tail of the scraper conveyor.
[0003] The patent announcement number: CN216917365U3 discloses a lifting coal return cover for a scraper conveyor, which is mainly composed of a coal return cover body, a plug-in plate assembly, a hydraulic cylinder, a cylinder seat pin shaft, and a hydraulic valve group 6. The lifting of the hydraulic cylinder is mainly controlled by operating the hydraulic valve group to realize the opening and closing control of the coal return cover body inspection and cleaning coal port by sliding the plug-in plate assembly up and down along the guide groove of the coal return cover body. It has the advantages of not occupying the width of the tunnel when inspecting and maintaining the coal return cover of the scraper conveyor on the comprehensive mining working face, good adaptability, easy operation, and low labor intensity.
[0004] However, the use of hydraulic cylinders to control the lifting of the plug plate assembly increases the cost of the device, and when the hydraulic cylinders work in a humid and dusty environment in a coal mine, dust particles may enter the hydraulic cylinders, causing hydraulic oil contamination, affecting the normal operation of the hydraulic system, and may even clog the hydraulic components and cause malfunctions. In addition, a humid and dusty environment will increase the difficulty and frequency of maintenance of the hydraulic system, requiring more frequent inspections and replacement of parts, increasing the maintenance cost of the device. Utility Model Content
[0005] In view of the above problems, the purpose of the utility model is to provide a lifting coal return hood for a scraper conveyor, which solves the problem that the use of a hydraulic cylinder to control the lifting of the plug plate assembly increases the cost of the device, and when the hydraulic cylinder works in a humid and dusty environment in a coal mine, dust particles may enter the inside of the hydraulic cylinder, causing hydraulic oil contamination, affecting the normal operation of the hydraulic system, and may even clog the hydraulic components and cause malfunctions. In addition, the humid and dusty environment will increase the difficulty and frequency of maintenance of the hydraulic system, requiring more frequent inspections and replacement of parts, increasing the maintenance cost of the device.
[0006] To achieve the above objectives, the utility model adopts the following technical solution: a lifting coal return hood for a scraper conveyor, comprising a coal return hood body and a driving motor, a worm gear reducer is installed on the top of the coal return hood body, and a winding roller is installed on the output end of the worm gear reducer, a steel wire rope is wound around the outer side of the winding roller, an inspection port plug plate is connected below the steel wire rope, a slide groove is provided at a position of the coal return hood body near the inspection port plug plate, a rotating roller is installed on the top of the coal return hood body, a limit rod is installed at the top of the coal return hood body near the inspection port plug plate, and a limit plug rod is installed on the limit rod, a return spring is sleeved on the outer side of the limit plug rod, the driving motor is installed on the outer side of the coal return hood body, and a conveying roller is installed at the output end of the driving motor, and a conveyor belt is installed on the outer side of the conveying roller.
[0007] The beneficial effects of the utility model are as follows: rotating the worm gear reducer drives the winding roller to rotate, and the winding roller winds the wire rope. During the winding process, the rotating roller guides the wire rope and reduces the friction of the wire rope. At this time, the inspection port plug plate rises along the slide groove, and the staff can inspect and maintain the scraper conveyor through the inspection port. The above method can reduce the difficulty and maintenance cost of the device maintenance while saving effort.
[0008] During the maintenance process, the driving motor drives the conveying roller to rotate, which can drive the conveyor belt to operate, and transport the coal ash inside the driving motor out of the interior of the coal return hood body, making it convenient for users to clean the coal return hood body.
[0009] To facilitate the lifting and lowering of the inspection port plug:
[0010] As a further improvement of the above technical solution: a snap-fit sliding installation structure is formed between the inspection port plug plate and the coal return hood body through a sliding groove.
[0011] The beneficial effect of this improvement is that the lifting and lowering of the inspection port plug-in plate can be guided and limited by the slide groove, so that the position of the inspection port plug-in plate can be ensured, and the inspection port plug-in plate can be conveniently shielded from coal ash.
[0012] To reduce friction on the wire rope:
[0013] As a further improvement of the above technical solution: the rotating roller and the winding roller are arranged parallel to each other.
[0014] The beneficial effect of this improvement is that the rotating rollers arranged parallel to each other can reduce the friction between the wire rope and the coal return hood body when the winding roller reels or releases the wire rope, thereby reducing the wear of the wire rope and increasing the service life of the wire rope.
[0015] To facilitate the definition of the position of the inspection port plug:
[0016] As a further improvement of the above technical solution: a sliding installation structure is formed between the limit insertion rod and the limit rod through a return spring.
[0017] The beneficial effect of this improvement is that the inspection port plug plate slides along the slide groove under the action of gravity to block the inspection port, and the limit plug rod cooperates with the limit rod under the drive of the reset spring to limit the position of the inspection port plug plate to complete the blocking of the inspection port.
[0018] To facilitate dust cleaning:
[0019] As a further improvement of the above technical solution: the conveyor belt is arranged inclined.
[0020] The beneficial effect of this improvement is that during the maintenance process, the driving motor drives the conveying roller to rotate, which can drive the conveyor belt to operate, and transport the coal ash inside the driving motor out of the interior of the coal return hood body, making it convenient for users to clean the coal return hood body.
[0021] To facilitate the definition of the position of the inspection port plug:
[0022] As a further improvement of the above technical solution: a guide rod is arranged below the inspection port plug plate, and the guide rod is arranged in an inverted frustum shape.
[0023] The beneficial effect of this improvement is that the guide rod can limit the position of the inspection port plug plate when the inspection port plug plate descends and contacts the coal return hood body.
[0024] To facilitate the rotation of the winding roller:
[0025] As a further improvement of the above technical solution: a bearing is installed at the connection between the winding roller and the coal return hood body.
[0026] The beneficial effect of this improvement is that the friction force of the winding roller when it rotates can be reduced by the bearing, making it easier for the worm gear reducer to drive the winding roller to rotate.
[0027] For ventilation:
[0028] As a further improvement of the above technical solution: a through hole is provided in the middle portion of the inspection port plug plate.
[0029] The beneficial effect of this improvement is that the coal gathered in the coal return hood can be well cooled and ventilated through the through holes, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the overall main structure.
[0031] Figure 2 It is a schematic diagram of the overall right view structure.
[0032] Figure 3 It is a schematic diagram of the overall structure from a top view.
[0033] Figure 4 This is a schematic diagram of the axonometric structure of the inspection port plug plate and wire rope.
[0034] Figure 5 for Figure 1 Enlarged structural diagram at A in the middle.
[0035] In the figure: 1. Coal return hood body; 11. Worm gear reducer; 12. Winding roller; 13. Wire rope; 14. Inspection port plug plate; 15. Slide; 16. Rotating roller; 2. Limit rod; 21. Limit plug rod; 22. Reset spring; 3. Drive motor; 31. Conveyor roller; 32. Conveyor belt. DETAILED DESCRIPTION
[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0037] like Figure 1-5As shown, a lifting coal return cover for a scraper conveyor comprises a coal return cover body 1 and a driving motor 3, a worm gear reducer 11 is installed on the top of the coal return cover body 1, and a winding roller 12 is installed on the output end of the worm gear reducer 11, a steel wire rope 13 is wound around the outer side of the winding roller 12, and a maintenance port plug plate 14 is connected to the lower side of the steel wire rope 13, a slide groove 15 is provided near the maintenance port plug plate 14 of the coal return cover body 1, a rotating roller 16 is installed on the top of the coal return cover body 1, a limit rod 2 is installed at the top of the coal return cover body 1 near the maintenance port plug plate 14, and a limit plug rod 21 is installed on the limit rod 2, a return spring 22 is sleeved on the outer side of the limit plug rod 21, and the driving motor 3 is installed on the coal return cover body 1. The outer side of the body 1, and the output end of the driving motor 3 is installed with a conveying roller 31, and the outer side of the conveying roller 31 is installed with a conveying belt 32. The worm gear reducer 11 is rotated to drive the winding roller 12 to rotate, and the winding roller 12 reels the wire rope 13. During the reeling process, the rotating roller 16 guides the wire rope 13 and reduces the friction of the wire rope 13. At this time, the inspection port plug plate 14 rises along the slide 15, and the staff can inspect and maintain the scraper conveyor through the inspection port. The above method can reduce the difficulty and maintenance cost of the device maintenance under the premise of saving effort. During the inspection process, the driving motor 3 drives the conveying roller 31 to rotate, which can drive the conveying belt 32 to operate, and the coal ash inside the driving motor 3 is transported out of the interior of the return coal hood body 1, which is convenient for users to inspect and maintain the return coal ash The cleaning of the coal cover body 1, the inspection port plug plate 14 and the return coal cover body 1 are formed with a sliding installation structure through a slide groove 15, and the lifting and lowering of the inspection port plug plate 14 can be guided and limited by the slide groove 15, so as to ensure the position of the inspection port plug plate 14, and facilitate the shielding of the coal ash by the inspection port plug plate 14, and the rotating roller 16 and the winding roller 12 are arranged in parallel with each other. The rotating rollers 16 arranged in parallel with each other can reduce the friction between the wire rope 13 and the return coal cover body 1 when the winding roller 12 winds or releases the wire rope 13, thereby reducing the wear of the wire rope 13 and increasing the service life of the wire rope 13, and the limit plug rod 21 and the limit rod 2 form a sliding installation structure through a reset spring 22, and the inspection port plug plate 14 is under the action of gravity The inspection port is blocked by sliding the lower slide groove 15. The limit rod 21 cooperates with the limit rod 2 under the drive of the return spring 22 to limit the position of the inspection port plug plate 14 to complete the blocking of the inspection port. The conveyor belt 32 is set at an angle. During the inspection process, the driving motor 3 drives the conveying roller 31 to rotate, which can drive the conveyor belt 32 to operate, and transport the coal ash inside the driving motor 3 out of the inside of the return coal cover body 1, which is convenient for users to clean the return coal cover body 1. A guide rod is set below the inspection port plug plate 14, and the guide rod is set in an inverted frustum. The guide rod can limit the position of the inspection port plug plate 14 when the inspection port plug plate 14 descends and contacts the return coal cover body 1. A bearing is installed at the connection between the winding roller 12 and the return coal cover body 1.The bearing can reduce the friction force when the winding roller 12 rotates, making it easier for the worm gear reducer 11 to drive the winding roller 12 to rotate. A through hole is provided in the middle of the inspection port plug plate 14, through which the coal gathered in the return coal cover can be well ventilated and the safety of the device can be improved.
[0038] The working principle of the utility model is as follows: when using the device, the device is installed at the tail part of the scraper conveyor. When maintenance is needed, the limit plug rod 21 is pulled out to release the limit on the position of the maintenance port plug plate 14, and the worm gear reducer 11 is rotated to drive the winding roller 12 to rotate, and the winding roller 12 winds the wire rope 13. During the winding process, the rotating roller 16 guides the wire rope 13 and reduces the friction of the wire rope 13. At this time, the maintenance port plug plate 14 rises along the slide 15, and the staff can inspect and maintain the scraper conveyor through the maintenance port. The above method can reduce the maintenance of the device under the premise of saving labor. Difficulty and maintenance cost. During the maintenance process, the driving motor 3 drives the conveying roller 31 to rotate, which can drive the conveyor belt 32 to operate, and transport the coal ash inside the driving motor 3 out of the interior of the return coal hood body 1, so that the user can clean the return coal hood body 1 conveniently. After the cleaning is completed, the worm gear reducer 11 is rotated in the opposite direction, and the winding roller 12 releases the wire rope 13 under the drive of the worm gear reducer 11. The inspection port plug plate 14 slides along the slide groove 15 under the action of gravity to block the inspection port. The limit rod 21 cooperates with the limit rod 2 under the drive of the reset spring 22 to limit the position of the inspection port plug plate 14 to complete the blocking of the inspection port.
[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A lifting coal return cover for a scraper conveyor, comprising a coal return cover body (1) and a drive motor (3), characterized in that: A worm gear reducer (11) is installed on the top of the coal return hood body (1), and a winding roller (12) is installed on the output end of the worm gear reducer (11). A steel wire rope (13) is wound around the outer side of the winding roller (12). An inspection port plug plate (14) is connected below the steel wire rope (13). A sliding groove (15) is provided near the inspection port plug plate (14) of the coal return hood body (1). A rotating roller is installed on the top of the coal return hood body (1). (16), a limit rod (2) is installed on the top of the coal return hood body (1) near the inspection port plug plate (14), and a limit plug rod (21) is installed on the limit rod (2), and a return spring (22) is sleeved on the outer side of the limit plug rod (21), and the drive motor (3) is installed on the outer side of the coal return hood body (1), and a conveying roller (31) is installed on the output end of the drive motor (3), and a conveying belt (32) is installed on the outer side of the conveying roller (31).
2. The lifting coal return cover for a scraper conveyor according to claim 1 is characterized in that: The inspection port plug plate (14) and the coal return hood body (1) form a snap-fitting sliding installation structure through a sliding groove (15).
3. The lifting coal return cover for a scraper conveyor according to claim 1 is characterized in that: The rotating roller (16) and the winding roller (12) are arranged parallel to each other.
4. The lifting coal return cover for a scraper conveyor according to claim 1 is characterized in that: A sliding installation structure is formed between the limiting insertion rod (21) and the limiting rod (2) via a return spring (22).
5. The lifting coal return cover for a scraper conveyor according to claim 1 is characterized in that: The conveyor belt (32) is arranged at an incline.
6. The lifting coal return cover for a scraper conveyor according to claim 1, characterized in that: A guide rod is arranged below the inspection port plug plate (14), and the guide rod is arranged in an inverted frustum shape.
7. The lifting coal return cover for a scraper conveyor according to claim 1, characterized in that: A bearing is installed at the connection between the winding roller (12) and the coal return hood body (1).
8. The lifting coal return cover for a scraper conveyor according to claim 1, characterized in that: A through hole is provided in the middle of the inspection port plug plate (14).