A small car for cleaning slime in a coal mine

Abstract

The utility model belongs to the technical field of coal slime cleaning equipment for mine. Purpose is to provide a coal mine uses the trolley of cleaning coal slime in the sedimentation tank, convenient to use, will not be stuck when meeting big granular foreign matter, and can reason the iron goods in coal slime. Adopt following technical scheme, cleaning device is installed in the front end of mobile car, transfer bucket activity is placed on the mobile car, conveying device is located above the mobile car, the lower end of conveying device is fixed on cleaning device, and the upper end is located above transfer bucket, in cleaning device, the front end of the frame is fixed in the shield, the main shaft is rotatably installed in the shield, and a plurality of pole rods are fixed on the main shaft along the spiral direction, in conveying device, the lower end of the outer shell is fixed on the shield, the upper end is provided with pneumatic motor, the blanking pipe is vertically fixed on the outer shell, the spiral shaft is rotatably sleeved on the outer shell, the upper end is connected with the pneumatic motor, and the lower end is connected with the main shaft. The utility model is used for cleaning the coal slime in the sedimentation tank or the bottom residual of small water sump in the coal mine.

Description

Technical Field

[0001] This utility model relates to a trolley used in coal mines to clean coal sludge in sedimentation tanks, belonging to the technical field of coal sludge cleaning equipment for mines. Background Technology

[0002] In coal mines, settling tanks are widely used. Cleaning trolleys are used to remove coal sludge from these tanks. However, once loaded, the sludge adheres tightly to the inner wall of the trolley, requiring considerable effort to remove. This results in high labor intensity for workers, long cleaning times, and low efficiency. Furthermore, underground water sump pits also require regular cleaning. While large water sump pits can be excavated mechanically, smaller pits cannot be accessed by large equipment and must be excavated manually. Existing cleaning trolleys are inefficient, and during the cleaning process, large foreign objects sometimes encounter obstacles that jam the transmission mechanism. Additionally, the coal sludge may contain ferrous objects, hindering its reuse. To address these issues, a convenient and easy-to-use coal sludge cleaning trolley needs to be designed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a small cart for cleaning coal sludge in the sedimentation tank of a coal mine. It is easy to use, will not get stuck when encountering large foreign objects, and can separate iron objects in the coal sludge.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a trolley for cleaning coal sludge in a sedimentation tank in a coal mine, comprising a mobile trolley, a cleaning device, a conveying device, a transmission device, and a transfer bucket. The cleaning device is installed at the front end of the mobile trolley, the transfer bucket is movably placed on the mobile trolley, the conveying device is located above the mobile trolley, the lower end of the conveying device is fixed to the cleaning device, and the upper end is located above the transfer bucket. The mobile vehicle includes a frame and support wheels mounted at the bottom of the frame, with a handle for pushing the vehicle fixed at the rear end of the frame; The cleaning device includes a protective cover, a main shaft, and levers. The protective cover, which is open at the front and bottom, is fixed to the front end of the frame. The main shaft is rotatably mounted inside the protective cover through bearings. Multiple levers are divided into two groups, which are equidistantly fixed on the outer circular surface of the main shaft along the spiral direction and are symmetrically distributed on the left and right. The conveying device includes an outer shell, a pneumatic motor, a screw shaft, and a feeding pipe. The cylindrical outer shell is inclined along the centerline of the moving vehicle and located above the frame. The lower end of the outer shell is fixed to the protective cover and communicates with the inside of the protective cover. The upper end of the outer shell is equipped with a pneumatic motor through a fixed flange. The feeding pipe is vertically fixed to the outer shell near the pneumatic motor and is located above the transfer bucket. The screw shaft with spiral blades is rotatably fitted inside the outer shell. The upper end is connected to the pneumatic motor, and the lower end is connected to the main shaft through a transmission device.

[0005] Preferably, the lever includes a collecting rod and a fixing rod. The fixing rod is fixed on the main shaft. The collecting rod is provided with a first connecting ear, and the fixing rod is provided with a second connecting ear. The collecting rod and the fixing rod are hinged together through the first connecting ear and the second connecting ear. An arc-shaped piston rod is also fixed on the collecting rod. An arc-shaped cylinder barrel matching the arc-shaped piston rod is fixed on the main shaft. An air inlet is provided on the arc-shaped cylinder barrel.

[0006] Preferably, the transmission device includes a worm gear and a worm. The worm gear is fixedly mounted on the middle of the main shaft, and the worm is coaxially fixed to the lower end of the helical shaft. The worm gear meshes with the worm, and a mud guard is provided outside the transmission device.

[0007] Preferably, a plurality of magnetic blocks are fixed at the bottom of the feeding tube.

[0008] Preferably, the frame is a frame structure, and a support plate is provided on the frame below the transfer bucket.

[0009] Preferably, the bottom of the transfer bucket is provided with multiple drainage holes.

[0010] Preferably, the support wheel is a narrow herringbone rubber wheel.

[0011] Preferably, the feeding surface of the spiral shaft is coated with a wear-resistant material.

[0012] Preferably, the gas inside the arc-shaped cylinder is nitrogen.

[0013] Compared with the prior art, the present invention has the following beneficial effects.

[0014] This invention provides a convenient and quick way to clean coal sludge from sedimentation tanks in coal mines or remove residue from the bottom of small underground water tanks. The transfer bucket facilitates the transfer and dumping of the cleaned coal sludge; the rotatable lever avoids large particles and prevents the rotating parts from jamming; and the magnetic block at the discharge pipe separates ferrous foreign objects from the coal sludge. Furthermore, this invention uses a single starter motor as the drive unit, simultaneously rotating the screw shaft and the main shaft, resulting in a simpler structure and reduced costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0019] Figure 4 This is a schematic diagram of the structure of this utility model after the protective cover is removed.

[0020] Figure 5 This is a schematic diagram showing the connection between the conveying device and the cleaning device in this utility model. Figure 1 .

[0021] Figure 6 This is a schematic diagram showing the connection between the conveying device and the cleaning device in this utility model. Figure 2 .

[0022] Figure 7 This is a schematic diagram showing the installation of the lever and worm gear on the main shaft in this utility model.

[0023] Figure 8 This is a schematic diagram of the lever structure in this utility model.

[0024] Figure 9 This is a schematic diagram of the frame structure in this utility model.

[0025] In the diagram: 1 is the mobile vehicle, 11 is the frame, 12 is the support wheel, 13 is the handrail, 14 is the support plate, 2 is the cleaning device, 21 is the protective cover, 22 is the main shaft, 23 is the lever, 231 is the collecting rod, 232 is the fixing rod, 233 is the first connecting ear, 234 is the second connecting ear, 235 is the arc-shaped piston rod, 236 is the arc-shaped cylinder, 237 is the air inlet, 3 is the conveying device, 31 is the outer shell, 32 is the pneumatic motor, 33 is the screw shaft, 34 is the discharge pipe, 35 is the magnetic block, 4 is the transmission device, 41 is the worm gear, 42 is the worm, and 5 is the transfer bucket. Detailed Implementation

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

[0027] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0028] The present invention provides the following embodiments.

[0029] In the description of direction in this utility model, the direction of travel is referred to as forward.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model discloses a trolley for cleaning coal sludge in a sedimentation tank in a coal mine, comprising a mobile vehicle 1, a cleaning device 2, a conveying device 3, a transmission device 4, and a transfer bucket 5. The cleaning device 2 is installed at the front end of the mobile vehicle 1, the transfer bucket 5 is movably placed on the mobile vehicle 1, the conveying device 3 is located above the mobile vehicle 1, the lower end of the conveying device 3 is fixed to the cleaning device 2, and the upper end is located above the transfer bucket 5. The mobile vehicle 1 includes a frame 11 and support wheels 12 installed at the bottom of the frame 11. A handle 13 for pushing the vehicle is fixed to the rear end of the frame 11. like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the cleaning device 2 includes a protective cover 21, a main shaft 22, and levers 23. The protective cover 21, which is open at the front and bottom, is fixed to the front end of the frame 11. The main shaft 22 is rotatably mounted inside the protective cover 21 through bearings. Multiple levers 23 are divided into two groups, which are all fixed at equal intervals along the spiral direction on the outer circular surface of the main shaft 22 and are symmetrically distributed on the left and right. like Figure 4 , Figure 5 , Figure 6As shown, the conveying device 3 includes an outer shell 31, a pneumatic motor 32, a screw shaft 33, and a discharge pipe 34. The cylindrical outer shell 31 is inclined along the centerline of the moving vehicle 1 and located above the frame 11. The lower end of the outer shell 31 is fixed to the protective cover 21 and communicates with the inside of the protective cover 21. The upper end of the outer shell 31 is equipped with the pneumatic motor 32 through a fixed flange. The discharge pipe 34 is vertically fixed on the outer shell 31 near the pneumatic motor 32 and is located above the transfer bucket 5. The screw shaft 33 with spiral blades is rotatably fitted inside the outer shell 31. The upper end is connected to the pneumatic motor 32, and the lower end is connected to the main shaft 22 through the transmission device 4.

[0031] In the cleaning device 2 and conveying device 3 mentioned above, when the main shaft 22 rotates, the symmetrically spirally arranged levers 23 will collect the material into the protective cover 21 and concentrate it at the spiral shaft 33. When the spiral shaft 33 with spiral blades rotates, it will convey the material upward to the discharge pipe 34.

[0032] like Figure 8 As shown, the lever 23 includes a collecting rod 231 and a fixing rod 232. The fixing rod 232 is fixed on the main shaft 22. The collecting rod 231 is provided with a first connecting lug 233, and the fixing rod 232 is provided with a second connecting lug 234. The collecting rod 231 and the fixing rod 232 are hinged together through the first connecting lug 233 and the second connecting lug 234. An arc-shaped piston rod 235 is also fixed on the collecting rod 231. An arc-shaped cylinder 236, which matches the arc-shaped piston rod 235, is fixed on the main shaft 22. The arc-shaped cylinder 236 is provided with an air inlet 237. The centers of the arc-shaped piston rod 235 and the arc-shaped cylinder 236 are located at the hinge point of the first connecting lug 233 and the second connecting lug 234.

[0033] like Figure 5 , Figure 6 As shown, the transmission device 4 includes a worm gear 41 and a worm 42. The worm gear 41 is mounted and fixed in the middle of the main shaft 22, and the worm 42 is coaxially fixed in the lower end of the spiral shaft 33. The worm gear 41 meshes with the worm 42, and a mud guard is provided on the outside of the transmission device 4.

[0034] like Figure 1 , Figure 3 As shown, a plurality of magnetic blocks 35 are fixed to the bottom of the feeding tube 34. The magnetic blocks 35 have strong magnetism.

[0035] like Figure 9 As shown, the frame 11 is a frame structure, and a support plate 14 is provided on the frame 11 at a position below the transfer bucket 5.

[0036] The bottom of the transfer bucket 5 is provided with multiple drainage holes.

[0037] The support wheel 12 is a narrow herringbone rubber wheel.

[0038] The feed surface of the spiral shaft 33 is coated with a wear-resistant material.

[0039] The gas inside the arc-shaped cylinder barrel 236 is nitrogen.

[0040] The working process of this utility model is as follows.

[0041] When it is necessary to clean the coal sludge in the sedimentation tank, the worker places this utility model into the sedimentation tank. At this time, the collecting rod 231 comes into contact with the coal sludge, and at the same time, nitrogen gas at a certain pressure is filled into the arc-shaped cylinder 236, making the arc-shaped cylinder 236 and the arc-shaped piston rod 235 form an arc-shaped air pressure spring. During normal coal sludge cleaning, the pneumatic motor 32 drives the spiral shaft 33 to rotate. The rotating spiral shaft 33 drives the main shaft 22 to rotate through the transmission device 4. The main shaft 22 drives the lever 23 mounted on it to rotate. The symmetrical spiral arrangement of the two sets of levers 23 cleans the coal sludge into the protective cover 21, and then the spiral shaft 33 with spiral blades carries it into the outer shell 31 and lifts it to the discharge pipe 34, and then it falls from the discharge pipe 34 into the transfer bucket 5. This utility model achieves the purpose of one pneumatic motor 32 driving the spiral shaft 33 and the lever 23 to run simultaneously.

[0042] When encountering large foreign objects, the collecting rod 231 will be subjected to a large reaction force, which will cause the collecting rod 231 to overcome the resistance of the arc-shaped piston rod 235 and rotate along the hinge with the fixed rod 232 to avoid it. In this way, large foreign objects are prevented from entering the rotating parts and causing jamming and failure to work.

[0043] Because the coal slime is in a loose state under the stirring action of the spiral shaft 33, if there are iron foreign objects mixed in the coal slime, the iron foreign objects in the coal slime will be adsorbed on the magnetic block 35 during the process of the coal slime falling into the transfer bucket 5 through the feed pipe 34, thereby separating the iron foreign objects.

[0044] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A trolley used in coal mines for cleaning coal sludge in sedimentation tanks, characterized in that: It includes a mobile vehicle (1), a cleaning device (2), a conveying device (3), a transmission device (4), and a transfer bucket (5). The cleaning device (2) is installed at the front end of the mobile vehicle (1), the transfer bucket (5) is movably placed on the mobile vehicle (1), the conveying device (3) is located above the mobile vehicle (1), the lower end of the conveying device (3) is fixed on the cleaning device (2), and the upper end is located above the transfer bucket (5). The mobile vehicle (1) includes a frame (11) and support wheels (12) installed at the bottom of the frame (11). A handle (13) for pushing the vehicle is fixed at the rear end of the frame (11). The cleaning device (2) includes a protective cover (21), a main shaft (22) and levers (23). The protective cover (21), which has an open front and bottom, is fixed to the front end of the frame (11). The main shaft (22) is rotatably installed inside the protective cover (21) through bearings. Multiple levers (23) are divided into two groups, which are all fixed at equal intervals along the spiral direction on the outer circular surface of the main shaft (22) and are symmetrically distributed on the left and right. The conveying device (3) includes an outer shell (31), a pneumatic motor (32), a screw shaft (33), and a discharge pipe (34). The cylindrical outer shell (31) is inclined along the center line of the moving vehicle (1) and located above the frame (11). The lower end of the outer shell (31) is fixed on the protective cover (21) and communicates with the inside of the protective cover (21). The upper end of the outer shell (31) is equipped with a pneumatic motor (32) through a fixed flange. The discharge pipe (34) is vertically fixed on the outer shell (31) near the pneumatic motor (32). The discharge pipe (34) is located above the transfer bucket (5). The screw shaft (33) with spiral blades is rotated and fitted inside the outer shell (31). The upper end is connected to the pneumatic motor (32), and the lower end is connected to the main shaft (22) through a transmission device (4).

2. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1, characterized in that: The lever (23) includes a collecting rod (231) and a fixing rod (232). The fixing rod (232) is fixed on the main shaft (22). The collecting rod (231) is provided with a first connecting ear (233), and the fixing rod (232) is provided with a second connecting ear (234). The collecting rod (231) and the fixing rod (232) are hinged together through the first connecting ear (233) and the second connecting ear (234). An arc-shaped piston rod (235) is also fixed on the collecting rod (231). An arc-shaped cylinder (236) matching the arc-shaped piston rod (235) is fixed on the main shaft (22). An air inlet (237) is provided on the arc-shaped cylinder (236).

3. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: The transmission device (4) includes a worm wheel (41) and a worm (42). The worm wheel (41) is fixed in the middle of the main shaft (22), and the worm (42) is coaxially fixed at the lower end of the spiral shaft (33). The worm wheel (41) meshes with the worm (42), and a mud guard is provided on the outside of the transmission device (4).

4. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: Multiple magnetic blocks (35) are fixed at the bottom of the feeding tube (34).

5. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: The frame (11) is a frame structure, and a support plate (14) is provided on the frame (11) below the transfer bucket (5).

6. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: The bottom of the transfer bucket (5) is provided with multiple drainage holes.

7. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: The support wheel (12) is a narrow herringbone rubber wheel.

8. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 1 or 2, characterized in that: The feed surface of the spiral shaft (33) is coated with a wear-resistant material.

9. A trolley for cleaning coal sludge in a sedimentation tank in a coal mine according to claim 2, characterized in that: The gas inside the arc-shaped cylinder barrel (236) is nitrogen.

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