Tail coal scraping device of coal mine belt conveyor

Abstract

The utility model belongs to the technical field of coal conveying, and particularly relates to a coal mine belt conveyor tail coal scraping device which comprises a supporting plate, the supporting plate is rotationally connected with a transmission shaft, the end of the transmission shaft is fixedly connected with the output end of a motor, the transmission shaft is in transmission connection with a transmission belt, and a collecting frame is arranged below the transmission belt. A scraping device is arranged on the supporting plate and comprises a sliding rod, plate bodies are fixed to the two ends of the sliding rod, and the plate bodies are rotationally connected with pressing shafts. According to the coal scraping device at the tail of the coal mine belt conveyor, in the working process of the scraping device, when the protruding block drives the sliding rod to move downwards, the pressing shaft can extrude the transmission belt to straighten the transmission belt, the straightened transmission belt can make better contact with the scraping plate, and the problem that coal scraping is not thorough due to looseness of the transmission belt is solved; and meanwhile, stable operation of the scraping plate on the transmission belt is facilitated, and the working quality and stability of the whole coal scraping device are further improved.

Description

Technical Field

[0001] The utility model relates to the field of coal conveying technology, specifically a coal scraping device at the tail of a coal mine belt conveyor. Background Technology

[0002] The tail scraper of a coal mine belt conveyor is a device specifically designed for the tail of a coal mine belt conveyor. Its main function is to clean coal slag, coal dust and other debris adhering to the surface of the belt. This device is of great significance for improving coal mine production efficiency, ensuring normal equipment operation and reducing environmental pollution.

[0003] Currently, some existing coal scraping devices do not typically consider the impact of the drive belt condition on material scraping. In actual operation, the drive belt may become loose, which can prevent the scraper from making sufficient and stable contact with the coal, resulting in incomplete scraping. Since there is no corresponding drive belt tensioning mechanism, existing devices cannot guarantee effective coal scraping under these conditions, reducing the reliability and stability of the entire scraping process. Therefore, we propose a coal scraping device at the tail of a coal mine belt conveyor. Summary of the Invention

[0004] The main objective of this utility model is to provide a coal scraping device at the tail of a coal mine belt conveyor, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the utility model proposes a coal scraping device at the tail of a coal mine belt conveyor, comprising a support plate, a drive shaft rotatably connected to the support plate, an end of the drive shaft fixedly connected to the output end of a motor, a drive belt drivingly connected to the drive shaft, a collection frame provided below the drive belt, and a scraping device provided on the support plate, the scraping device comprising:

[0006] A sliding rod has plates fixed at both ends. The plates are rotatably connected to a pressing shaft, which presses the transmission belt to make the transmission belt contact the scraper better and improve the material hanging effect. A protrusion is fixedly connected to the outer wall of the plate, and a toothed rod is fixedly connected to the side wall of the protrusion.

[0007] A gear, which is rotatably connected to a support plate, and the gear meshes with a rack and a second rack.

[0008] A fixed plate is fixedly connected to the toothed rod. The fixed plate has a slot, and a scraper is slidably connected to the slot to improve the stability of the scraper's movement. At the same time, the scraper has a long inclined surface, which can better guide the coal into the collection frame.

[0009] Preferably, a guide rod is fixedly connected to the bottom outer wall of the scraper, the guide rod passes through the crossbar and is slidably connected to the crossbar, the crossbar is fixedly connected to the inner wall of the fixed plate, and the scraper and the crossbar are elastically connected by a spring for supporting the scraper.

[0010] Preferably, a frame is fixedly connected to the bottom of the guide rod, a cam is provided inside the frame, the cam is fixedly connected to the rotating rod, and the rotating rod passes through the fixed plate and is rotatably connected to the fixed plate.

[0011] Preferably, the support plate has a sliding groove, which is slidably connected to the protrusion.

[0012] Preferably, the support plate has a groove, which is fixedly connected to the fixing plate.

[0013] Preferably, a push block is provided above the protrusion, and the push block is fixedly connected to the output end of the hydraulic cylinder.

[0014] This utility model provides a coal scraping device at the tail of a coal mine belt conveyor. It has the following beneficial effects:

[0015] (1) In the operation of the coal scraping device at the tail of the coal mine belt conveyor, when the convex blocks drive the sliding rod to move downward, the pressing shaft will squeeze the transmission belt to make it taut. The taut transmission belt can better contact the scraper, avoiding the problem of incomplete coal scraping caused by the loose transmission belt. At the same time, it is also conducive to the stable operation of the scraper on the transmission belt, further improving the working quality and stability of the entire coal scraping device.

[0016] (2) The tail scraper of the coal conveyor belt in this coal mine uses a hydraulic cylinder to push the cam, which drives a series of transmissions to make the scraper press tightly against the outer wall of the transmission belt. This design can increase the pressure of the scraper on the transmission belt, thereby effectively scraping off the coal material attached to the transmission belt. In addition, the cam can be driven by the rotating rod to act on the frame and guide rod, further flexibly adjusting the pressure of the scraper on the transmission belt, thereby enhancing the scraping effect, ensuring that the coal material on the transmission belt can be fully scraped off, reducing coal residue, and improving coal collection efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the support plate portion of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the transmission belt of the utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the scraping device of the utility model.

[0022] Figure 5 For utility model Figure 4 Schematic diagram of structure A in the middle.

[0023] Explanation of icon numbers:

[0024] 1. Support plate; 11. Sliding groove; 12. Sliding groove; 13. Hydraulic cylinder; 14. Push block; 2. Drive shaft; 3. Drive belt; 4. Motor; 5. Collection frame; 61. Sliding rod; 62. Pressing shaft; 63. Gear; 64. Protrusion; 65. Tooth rack one; 66. Tooth rack two; 67. Fixing plate; 671. Groove; 68. Scraper; 681. Guide rod; 682. Frame; 683. Cam; 684. Rotating rod; 69. Crossbar.

[0025] The realization of the utility model's purpose, functional features, and advantages will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0027] Please see Figure 1-Figure 5 The utility model proposes a coal scraping device at the tail of a coal mine belt conveyor, including a support plate 1, a sliding groove 11 at the beginning of the support plate 1, the sliding groove 11 being slidably connected to a protrusion 64, a sliding groove 12 at the beginning of the support plate 1, the sliding groove 12 being fixedly connected to a fixed plate 67, a drive shaft 2 being rotatably connected to the support plate 1, the end of the drive shaft 2 being fixedly connected to the output end of a motor 4, a drive belt 3 being drively connected to the drive shaft 2, a collection frame 5 being provided below the drive belt 3, and a scraping device being provided on the support plate 1.

[0028] In an embodiment of the utility model, in order to collect the coal material attached to the outer wall of the transmission belt 3, the scraping device specifically includes a sliding rod 61, with plates fixed at both ends of the sliding rod 61, a pressing shaft 62 rotatably connected to the plates, a protrusion 64 fixedly connected to the outer wall of the plates, a push block 14 above the protrusion 64, the push block 14 being fixedly connected to the output end of the hydraulic cylinder 13, a toothed rod 65 fixedly connected to the side wall of the protrusion 64, a gear 63 rotatably connected to the support plate 1, the gear 63 meshing with the toothed rod 65 and the toothed rod 66, a fixed plate 67 being fixedly connected to the toothed rod 66, and a slot 671 being opened on the fixed plate 67, with a scraper 68 slidably connected to the slot 671;

[0029] Furthermore, a guide rod 681 is fixedly connected to the bottom outer wall of the scraper 68. The guide rod 681 passes through the crossbar 69 and is slidably connected to the crossbar 69. The crossbar 69 is fixedly connected to the inner wall of the fixed plate 67. The scraper 68 and the crossbar 69 are elastically connected by a spring. A frame 682 is fixedly connected to the bottom of the guide rod 681. A cam 683 is provided inside the frame 682. The cam 683 is fixedly connected to the rotating rod 684. The rotating rod 684 passes through the fixed plate 67 and is rotatably connected to the fixed plate 67.

[0030] In this utility model, during use, the hydraulic cylinder 13 is first activated. At this time, the push block 14, fixedly connected to the output section of the hydraulic cylinder 13, applies force to the protrusion 64, causing the protrusion 64 to drive the sliding rod 61 downwards. During this process, the pressing shaft 62 squeezes the transmission belt 3, thereby straightening it. Simultaneously, as the protrusion 64 moves downwards, the first toothed rod 65, fixedly connected to the protrusion 64, applies force to the gear 63, causing the gear 63 to rotate. When the gear 63 rotates, under the transmission of the gear 63, the second toothed rod 66 drives the fixed plate 67 upwards, thereby causing the scraper 68 to press tightly against the outer wall of the transmission belt 3, thus increasing the pressure exerted by the scraper 68 on the transmission belt 3. The pressure is increased to improve the material hanging effect of the scraper 68. When it is necessary to further increase the pressure of the scraper 68 on the transmission belt 3, the rotating rod 684 is rotated counterclockwise by one to ninety degrees. During this process, the cam 683 applies a force to the frame 682, causing the frame 682 to drive the guide rod 681 to move upward, thereby further increasing the pressure on the outer wall of the scraper 68 and the transmission belt 3. When it is necessary to decrease the pressure of the scraper 68 on the transmission belt 3, the rotating rod 684 is rotated clockwise by one to ninety degrees. During this process, the cam 683 applies a force to the frame 682, causing the frame 682 to drive the guide rod 681 to move downward, thereby reducing the pressure of the scraper 68 on the transmission belt 3, thus achieving the purpose of flexible adjustment.

[0031] The above description is only a preferred embodiment of the utility model and does not limit the patent scope of the utility model. All equivalent structural transformations made under the inventive concept of the utility model using the contents of the utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the utility model.

Claims

1. A coal scraping device at the tail of a coal mine belt conveyor, comprising a support plate (1), characterized in that: The support plate (1) is rotatably connected to a drive shaft (2), the end of the drive shaft (2) is fixedly connected to the output end of the motor (4), the drive shaft (2) is connected to a drive belt (3), a collection frame (5) is provided below the drive belt (3), and a scraping device is provided on the support plate (1). The scraping device includes: A sliding rod (61) has plates fixed at both ends. The plates are rotatably connected to a pressing shaft (62). A protrusion (64) is fixedly connected to the outer wall of the plates. A toothed rod (65) is fixedly connected to the side wall of the protrusion (64). Gear (63), the gear (63) is rotatably connected to the support plate (1), and the gear (63) meshes with rack one (65) and rack two (66). A fixing plate (67) is fixedly connected to the second toothed rod (66). The fixing plate (67) has a slot (671) and a scraper (68) is slidably connected to the slot (671).

2. The coal scraping device at the tail of a coal mine belt conveyor according to claim 1, characterized in that: The scraper (68) has a guide rod (681) fixedly connected to the bottom outer wall. The guide rod (681) passes through the crossbar (69) and is slidably connected to the crossbar (69). The crossbar (69) is fixedly connected to the inner wall of the fixing plate (67). The scraper (68) and the crossbar (69) are elastically connected by a spring.

3. The coal scraping device at the tail of a coal mine belt conveyor according to claim 2, characterized in that: The bottom of the guide rod (681) is fixedly connected to a frame (682). The frame (682) is provided with a cam (683). The cam (683) is fixedly connected to a rotating rod (684). The rotating rod (684) passes through the fixed plate (67) and is rotatably connected to the fixed plate (67).

4. The coal scraping device at the tail of a coal mine belt conveyor according to claim 1, characterized in that: The support plate (1) has a sliding groove (11), which is slidably connected to the protrusion (64).

5. A coal scraping device at the tail of a coal mine belt conveyor according to claim 1, characterized in that: The support plate (1) has a sliding groove (12), which is fixedly connected to the fixing plate (67).

6. A coal scraping device at the tail of a coal mine belt conveyor according to claim 1, characterized in that: A push block (14) is provided above the protrusion (64), and the push block (14) is fixedly connected to the output end of the hydraulic cylinder (13).

Images