Flow adjusting device for coal mine backfilling pipeline

Abstract

The utility model discloses a flow regulating device for a coal mine backfill pipeline, which comprises an outer shell, valve plate doors, a driving component and a hydraulic cylinder, the outer shell is of a square pipeline structure, and the edges of the two sides in the outer shell are respectively and rotatably connected with a plurality of valve plate doors which are arranged in a split mode. The upper end of a rotating shaft of the valve plate door penetrates out of the outer shell and then is fixedly connected with transmission gears, a driving assembly is slidably connected to the portion, between the transmission gears, of the outer shell, the driving assembly is in transmission connection with the transmission gears, one end of the driving assembly is fixedly connected with a hydraulic cylinder, and the hydraulic cylinder is fixedly connected to the outer side wall of the outer shell. The utility model aims to provide a flow regulating device which is convenient to operate, high in regulating precision, good in equipment durability and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine backfill equipment, in particular to a flow regulating device for a coal mine backfill pipeline. Background Art

[0002] Coal mine backfilling is the process of filling the processed ore waste or other backfill materials into the mined coal mine working face during the coal mining process, aiming to maintain the stability of the underground mining area, reduce surface subsidence, and prevent mine collapse. In this process, it is particularly important to effectively control the flow of backfill materials. Because improper flow regulation may lead to excessive or insufficient backfill materials, which in turn affects the safety and economic benefits of the mine.

[0003] During pipeline transportation, the solid blocks in the backfill material will cause great impact and wear on the backfill pipe, reducing its service life. Therefore, it is necessary to control the flow rate of the backfill material in the backfill pipe to avoid serious damage and destruction to the backfill pipe. Utility Model Content

[0004] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the utility model is to provide a flow regulating device which is easy to operate, has high regulating accuracy, good equipment durability and long service life.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a flow regulating device for a coal mine backfill pipeline, comprising an outer shell, a valve plate door, a driving assembly, and a hydraulic cylinder. The outer shell is a square pipeline structure, and the edges on both sides of the inner side of the outer shell are rotatably connected to a plurality of valve plate doors set apart. The flow rate of backfill material is controlled by the size of the opening between the valve plate doors, thereby reducing the impact of the backfill material on the backfill pipeline. The upper end of the rotating shaft of the valve plate door is fixedly connected with a transmission gear after passing through the outer shell, and the outer shell between the transmission gears is slidably connected with a driving assembly, and the driving assembly is respectively connected to the transmission gear. When in use, the driving assembly drives the transmission gear to rotate relatively, and the transmission gear drives the valve plate door to rotate relatively, thereby realizing the valve plate door control. One end of the driving assembly is fixedly connected to a hydraulic cylinder, and the hydraulic cylinder is fixedly connected to the outer side wall of the outer shell. When in use, the transmission power is provided by the hydraulic cylinder.

[0006] In one embodiment, a material guide block is fixedly connected to the inner side wall of the outer shell on one side of the valve plate door, and the opposite side of the material guide block is an inclined surface.

[0007] In one embodiment, two ends of the outer shell are respectively fixedly connected to a fixing frame, and a plurality of mounting holes are formed on the fixing frame.

[0008] In one embodiment, a wear-resistant lining is fixedly connected to one side of the valve plate door by bolts.

[0009] In one embodiment, the driving assembly includes a sliding guide block, a side guide rod, a sliding guide rod, and a connecting rod. The sliding guide blocks are fixedly connected to the outer shell between the transmission gears, and a sliding guide hole passes through the middle of the sliding guide block. The sliding sleeve in the sliding guide hole is connected to the sliding guide rod. The two ends of the sliding guide rod are respectively fixedly connected to the connecting rods, and two groups of symmetrical side guide rods are fixedly connected between the connecting rods. A plurality of gear teeth are fixedly connected to the separated sides of the side guide rods, and the gear teeth are meshed with the transmission gears. Sliding guide grooves are respectively opened on both sides of the sliding guide block, and the side guide rods are respectively slidably connected in the sliding guide grooves, and the hydraulic cylinder is fixedly connected to one group of connecting rods.

[0010] Beneficial effects of the utility model:

[0011] 1. The present application provides a flow regulating device for a coal mine backfill pipeline. By setting a valve plate door, the flow of backfill materials can be accurately controlled with high regulation accuracy, effectively avoiding potential safety hazards and economic losses in mines caused by excessive or insufficient flow of backfill materials;

[0012] 2. The flow regulating device of the present application has a transmission gear fixedly connected to the upper end of the valve plate door shaft, and a driving assembly is slidably connected to the outer shell between the transmission gears, and the driving assembly is respectively connected to the transmission gears. This design makes the operation of the valve plate door more convenient and improves the operating efficiency;

[0013] 3. The flow regulating device of the present application adopts a hydraulic cylinder to provide driving force. Compared with manual driving, hydraulic driving is more stable and less susceptible to external environmental influences, thereby improving the durability and service life of the equipment;

[0014] 4. The flow regulating device of the present application has a wear-resistant lining plate fixedly connected to one side of the valve plate door by bolts, which effectively prevents the impact damage of the backfill material on the valve plate door and improves the service life of the valve plate door;

[0015] 5. In the flow regulating device of the present application, a guide block is fixedly connected to the inner side wall of the outer shell on one side of the valve plate door, and the opposite side of the guide block is an inclined surface, which can protect the rotating shaft connection of the valve plate door to prevent the impact damage to the rotating connection of the valve plate door, which affects the operation and use of the valve plate door;

[0016] 6. The flow regulating device of the present application, whose driving assembly includes a sliding guide rod, is used to improve the relative stability of the side guide rod during transmission, making the transmission process more stable and further improving the service life of the equipment;

[0017] In summary, the flow regulating device of the present application has significant advantages in improving flow regulation accuracy, facilitating operation, and improving equipment durability and service life, and has good application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the valve plate door connection structure of the utility model.

[0022] In the figure: 1 outer shell, 2 valve plate door, 3 drive assembly, 301 sliding guide block, 302 side guide rod, 303 sliding guide rod, 304 connecting rod, 305 gear, 306 sliding guide hole, 307 sliding guide groove, 4 hydraulic cylinder, 5 transmission gear, 6 guide block, 7 mounting hole, 8 wear-resistant lining plate, 9 fixing frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A flow regulating device for a coal mine backfill pipeline comprises an outer shell 1, a valve plate door 2, a driving assembly 3 and a hydraulic cylinder 4. The outer shell 1 is a square pipeline structure. The edges on both sides of the inner shell 1 are rotatably connected with a plurality of valve plate doors 2 arranged opposite to each other. The flow rate of the backfill material is controlled by the size of the opening between the valve plate doors 2, thereby reducing the impact of the backfill material on the backfill pipeline. The upper end of the rotating shaft of the valve plate door 2 is fixedly connected with a transmission gear 5 after passing through the outer shell 1. The outer shell 1 between the transmission gears 5 is slidably connected with a driving assembly 3, and the driving assembly 3 is respectively connected with the transmission gear 5 for transmission. When in use, the driving assembly 3 drives the transmission gear 5 to rotate relatively, and the transmission gear 5 drives the valve plate door 2 to rotate relatively, thereby realizing the control of the valve plate door 2. One end of the driving assembly 3 is fixedly connected with a hydraulic cylinder 4, and the hydraulic cylinder 4 is fixedly connected to the outer side wall of the outer shell 1. When in use, the transmission power is provided by the hydraulic cylinder 4.

[0025] In one of the embodiments, a material guide block 6 is fixedly connected to the inner wall of the outer shell 1 on one side of the valve plate door 2, and the opposite side of the material guide block 6 is an inclined surface, which is used to protect the rotating shaft connection of the valve plate door 2 to prevent impact damage to the rotating connection of the valve plate door 2, thereby affecting the operation and use of the valve plate door 2.

[0026] In one embodiment, both ends of the outer shell 1 are fixedly connected to a fixing frame 9, and a plurality of mounting holes 7 are provided on the fixing frame 9 for relative connection between the device and the backfill pipeline.

[0027] In one embodiment, a wear-resistant lining plate 8 is fixedly connected to one side of the valve plate door 2 by bolts, so as to reduce the impact damage of the backfill material on the valve plate door 2 and increase the service life of the valve plate door 2.

[0028] In one embodiment, the driving assembly 3 includes a sliding guide block 301, a side guide rod 302, a sliding guide rod 303, and a connecting rod 304. The sliding guide blocks 301 are fixedly connected to the outer shell 1 between the transmission gears 5. A sliding guide hole 306 runs through the middle of the sliding guide block 301. The sliding sleeve in the sliding guide hole 306 is connected to the sliding guide rod 303. The two ends of the sliding guide rod 303 are fixedly connected to the connecting rod 304. Two groups of symmetrical side guide rods 302 are fixedly connected between the connecting rods 304. A plurality of gear teeth 305 are fixedly connected to the separated side of the side guide rod 302. The gear teeth 305 are meshed with the transmission gear 5. The sliding guide block 30 Slide guide grooves 307 are respectively provided on both sides, and the side guide rods 302 are respectively slidably connected in the slide guide grooves 307. The hydraulic cylinder 4 is fixedly connected to one group of connecting rods 304. When in use, the hydraulic cylinder 4 drives the connecting rod 304 on one side to move relatively, and the connecting rod 304 drives the side guide rods 302 at both ends to move relatively. The side guide rod 302 drives the transmission gear 5 to rotate through the gear teeth 305, and the transmission gear 5 drives the valve plate door 2 to rotate, thereby adjusting the gap opened between the valve plate doors 2 to achieve flow control of backfill materials. In the utility model, the slide guide rod 303 is used to improve the relative stability of the side guide rod 302 during transmission.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flow regulating device for a coal mine backfill pipeline, comprising an outer shell (1), a valve plate door (2), a drive assembly (3), and a hydraulic cylinder (4), characterized in that: The outer shell (1) is a square pipe structure. The inner edges of both sides of the outer shell (1) are rotatably connected to a plurality of valve plate doors (2) arranged in pairs. The upper ends of the rotating shafts of the valve plate doors (2) pass through the outer shell (1) and are fixedly connected to transmission gears (5). The outer shell (1) is slidably connected to a driving assembly (3) between the transmission gears (5). The driving assembly (3) is respectively connected to the transmission gears (5) in a transmission manner. One end of the driving assembly (3) is fixedly connected to a hydraulic cylinder (4). The hydraulic cylinder (4) is fixedly connected to the outer wall of the outer shell (1).

2. A flow regulating device for a coal mine backfill pipeline according to claim 1, characterized in that: A material guide block (6) is fixedly connected to the inner side wall of the outer shell (1) on one side of the valve plate door (2), and the opposite side of the material guide block (6) is an inclined surface.

3. A flow regulating device for coal mine backfill pipeline according to claim 1, characterized in that: Both ends of the outer shell (1) are respectively fixedly connected to a fixing frame (9), and a plurality of mounting holes (7) are provided on the fixing frame (9).

4. A flow regulating device for a coal mine backfill pipeline according to claim 1, characterized in that: One side of the valve plate door (2) is fixedly connected to a wear-resistant lining plate (8) via bolts.

5. A flow regulating device for coal mine backfill pipeline according to claim 1, characterized in that: The driving assembly (3) comprises a sliding guide block (301), a side guide rod (302), a sliding guide rod (303), and a connecting rod (304); the sliding guide blocks (301) are fixedly connected to the outer shell (1) between the transmission gears (5); a sliding guide hole (306) passes through the middle of the sliding guide block (301); a sliding sleeve in the sliding guide hole (306) is connected to the sliding guide rod (303); both ends of the sliding guide rod (303) are fixedly connected to the connecting rod (304); Two groups of symmetrical side guide rods (302) are fixedly connected between the connecting rods (304); a plurality of gear teeth (305) are fixedly connected to the separated sides of the side guide rods (302); the gear teeth (305) are meshedly connected with the transmission gear (5); two sides of the sliding guide block (301) are respectively provided with sliding guide grooves (307); the side guide rods (302) are respectively slidably connected in the sliding guide grooves (307); and the hydraulic cylinder (4) is fixedly connected to one group of the connecting rods (304).

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