Dust falling device for hydraulic support

Abstract

The utility model discloses a dust falling device for a hydraulic support, and belongs to the technical field of hydraulic supports. Comprising a hydraulic support and two water tanks, the two water tanks are arranged in the left side of the hydraulic support, the right ends of the two water tanks communicate with each other through a connecting pipe, a lifting mechanism is arranged on the left side of the hydraulic support and comprises L-shaped toothed plates, and the two L-shaped toothed plates are connected through a connecting rod; connecting blocks are arranged at the left ends of the two L-shaped toothed plates, water spraying pipes are arranged in the connecting blocks, and sliding blocks are arranged at the lower ends of the L-shaped toothed plates; by arranging the lifting mechanism and the reset mechanism, the L-shaped toothed plate can drive the water spraying pipe to vertically move in a reciprocating mode, then the height of the water spraying pipe is adjusted during dust falling work, the spraying range of the water spraying pipe is wider, the water mist coverage area is increased, and then the dust falling quality of the dust falling device for the hydraulic support is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic supports, and in particular relates to a dust suppression device for a hydraulic support. Background Art

[0002] The shielded hydraulic support is an important equipment for comprehensive mechanized coal mining. It is used to maintain the roof of the coal mining face and isolate the goaf, providing a safe working space for coal mining machines, conveyors and workers. It can also push the working face conveyor to move toward the coal wall. At the same time, the conveyor can be used as a fulcrum to achieve self-movement of the support, thereby realizing comprehensive mechanized coal mining, solving the contradiction that the roof management lags behind the coal mining face in mechanized coal mining work, and further improving and enhancing the efficiency of coal mining and transportation equipment.

[0003] During the coal mining process, a large amount of dust is generally generated and dispersed in the working environment. Existing dust suppression devices are generally set on hydraulic supports to perform dust suppression work. However, the nozzle position of the existing dust suppression device cannot be adjusted, so that the sprayed water mist covers a small area. For this reason, we propose a dust suppression device for hydraulic supports. Utility Model Content

[0004] The purpose of the utility model is to provide a dust suppression device for a hydraulic support to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust reduction device for a hydraulic support, comprising a hydraulic support and a water tank, and two water tanks are provided, the two water tanks are both arranged inside the left side of the hydraulic support, the right ends of the two water tanks are connected to each other through a connecting pipe, a lifting mechanism is provided on the left side of the hydraulic support, the lifting mechanism comprises an L-shaped tooth plate, and two L-shaped tooth plates are symmetrically provided front and back, the two L-shaped tooth plates are connected by a connecting rod, the left ends of the two L-shaped tooth plates are both provided with a connecting block, a water spray pipe is provided inside the connecting block, a sliding block is provided at the lower end of the L-shaped tooth plate, and the sliding block is fixedly installed inside the hydraulic support by fixing bolts.

[0006] Preferably, a reset mechanism is provided inside the L-shaped tooth plate, and the reset mechanism includes a movable groove, and the movable groove is opened inside the L-shaped tooth plate, a telescopic rod and a reset spring are provided inside the movable groove, and the reset spring is sleeved on the circumferential surface of the upper end of the telescopic rod, the upper end of the reset spring is connected to the inner top of the L-shaped tooth plate, and the lower end of the telescopic rod is connected to the upper surface of the slider.

[0007] Preferably, a slide groove is provided on the inner wall of the hydraulic support, and two slide grooves are provided, and the inner ends of the two sliding blocks are slidably installed inside the two slide grooves respectively.

[0008] Preferably, a stirring mechanism is provided inside the water tank, and the stirring mechanism includes a servo motor, and the servo motor is arranged at the front end of the hydraulic support through a motor box. The power output end of the servo motor is transmission-connected to a rotating shaft, and a stirring rod is provided on the circumferential surface of the rotating shaft, and two groups of stirring rods are provided, and the two groups of stirring rods are respectively arranged inside the two water tanks.

[0009] Preferably, an intermittent gear is provided on the circumferential surface of the rotating shaft, and two intermittent gears are provided, and the left ends of the two intermittent gears are respectively meshed and connected with the two L-shaped tooth plates.

[0010] Preferably, a water pump is provided at the right end of the upper surface of the water tank at the front end, a water outlet pipe is provided at the rear end of the water pump, the left end of the water outlet pipe is connected to the water spray pipe through a corrugated pipe, a water suction pipe is provided at the lower end of the water pump, and the lower end of the water suction pipe is inserted into the inner bottom of the water tank at the front end.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The dust suppression device for the hydraulic support, through the provision of a lifting mechanism and a reset mechanism, enables the L-shaped tooth plate to drive the water spray pipe to move vertically back and forth, and then during the dust suppression operation, the height of the water spray pipe is adjusted to make the spraying range of the water spray pipe wider, thereby increasing the water mist coverage area, and thus improving the dust suppression quality of the dust suppression device for the hydraulic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the frontal sectional three-dimensional structure of the utility model;

[0015] Figure 3 It is a right-side cutaway three-dimensional structural schematic diagram of the water tank of the utility model;

[0016] Figure 4 It is a schematic diagram of the front sectional three-dimensional structure of the L-shaped tooth plate of the utility model.

[0017] In the figure: 1. hydraulic support; 2. water tank; 3. stirring mechanism; 301. servo motor; 302. rotating shaft; 303. stirring rod; 4. lifting mechanism; 401. intermittent gear; 402. L-shaped tooth plate; 403. connecting block; 404. water spray pipe; 405. slider; 406. slide groove; 407. fixing bolt; 5. water pump; 6. water outlet pipe; 7. bellows; 8. reset mechanism; 801. movable groove; 802. telescopic rod; 803. reset spring; 9. connecting rod. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1 - Figure 4 The utility model provides a dust suppression device for a hydraulic support, comprising a hydraulic support 1 and a water tank 2, and two water tanks 2 are provided. The two water tanks 2 are both arranged inside the left side of the hydraulic support 1, and the right ends of the two water tanks 2 are interconnected through a connecting pipe. The arrangement of the two water tanks 2 can increase the water storage capacity, thereby increasing the dust suppression time, without the need to frequently add water, and reducing the work intensity of the staff. A stirring mechanism 3 is arranged inside the water tank 2, and the stirring mechanism 3 comprises a servo motor 301, which is arranged at the front end of the hydraulic support 1 through a motor box, and the power output end of the servo motor 301 is connected to a rotating shaft 302 through a coupling transmission, and a stirring rod 303 is arranged on the circumferential surface of the rotating shaft 302, and the stirring rod 303 is provided with two groups, and the two groups of stirring rods 303 are respectively arranged inside the two water tanks 2, and can stir the inside of the two water tanks 2 respectively, so that the dust suppression agent is quickly mixed with water, and at the same time, the precipitation of the agent is avoided, and the rotating shaft 3 An intermittent gear 401 is provided on the circumferential surface of 02, and two intermittent gears 401 are provided. A lifting mechanism 4 is provided on the left side of the hydraulic support 1. The lifting mechanism 4 includes an L-shaped toothed plate 402, and two L-shaped toothed plates 402 are symmetrically provided front and back. The left ends of the two intermittent gears 401 are respectively meshed and connected with the two L-shaped toothed plates 402, so that when the rotating shaft 302 drives the intermittent gear 401 to rotate, the gear teeth of the intermittent gear 401 rotate to mesh with the L-shaped toothed plate 402, which can drive the L-shaped toothed plate 402 to move vertically upward. The two L-shaped toothed plates 402 are connected by a connecting rod 9. The left ends of the two L-shaped toothed plates 402 are both provided with a connecting block 403. A water spray pipe 404 is provided inside the connecting block 403. When the L-shaped toothed plate 402 moves vertically upward, the water spray pipe 404 can be driven to move vertically upward through the connecting block 403, thereby changing the spraying height of the water spray pipe 404, thereby expanding the dust reduction range of the device.

[0020] Among them, a reset mechanism 8 is arranged inside the L-shaped toothed plate 402, and the reset mechanism 8 includes a movable groove 801, and the movable groove 801 is opened inside the L-shaped toothed plate 402, and a telescopic rod 802 and a reset spring 803 are arranged inside the movable groove 801. The setting of the movable groove 801 provides installation and activity space for the telescopic rod 802 and the reset spring 803, and the reset spring 803 is sleeved on the circumferential surface of the upper end of the telescopic rod 802, and the upper end of the reset spring 803 is connected to the inner top of the L-shaped toothed plate 402, and the lower end of the telescopic rod 802 is connected to the upper surface of the slider 405. When the L-shaped toothed plate 402 moves vertically upward, it can drive the upper end of the telescopic rod 802 to stretch, and the reset spring 803 is in a stretched state. When the intermittent gear 401 is not engaged with the L-shaped toothed plate 402, the reset spring 803 will pull the L-shaped toothed plate 402 back downward to the initial state, thereby realizing the vertical reciprocating movement of the L-shaped toothed plate 402.

[0021] A slider 405 is provided at the lower end of the L-shaped tooth plate 402, and the slider 405 is fixedly installed inside the hydraulic support 1 by fixing bolts 407;

[0022] Among them, the inner wall of the hydraulic support 1 is provided with a slide groove 406, and there are two slide grooves 406. The inner ends of the two sliders 405 are respectively slidably installed in the two slide grooves 406. Before performing dust reduction work, the fixing bolts 407 are unscrewed to allow the slider 405 to slide horizontally in the slide groove 406. At this time, the L-shaped tooth plate 402 is moved so that the L-shaped tooth plate 402 does not engage with the intermittent gear 401. At this time, the stirring mechanism 3 works and only stirs the inside of the water tank 2, avoiding the lifting mechanism 4 from lifting and lowering to affect the staff when the dust reduction agent is mixed inside the water tank 2.

[0023] A water pump 5 is provided at the right end of the upper surface of the front water tank 2, and a water outlet pipe 6 is provided at the rear end of the water pump 5. The left end of the water outlet pipe 6 is connected to the water spray pipe 404 through a bellows 7. The setting of the bellows 7 allows the bellows 7 to extend and retract when the water spray pipe 404 moves vertically back and forth, thereby allowing the water spray pipe 404 to spray water mist smoothly without affecting the vertical movement of the water spray pipe 404. A water suction pipe is provided at the lower end of the water pump 5, and the lower end of the water suction pipe is inserted into the inner bottom of the front water tank 2, so that the water pump 5 can smoothly pump water out of the water tank 2 for use.

[0024] The working principle and use process of the utility model are as follows: first, when preparing the dust reduction liquid, firstly, inject clean water and dust reduction agent into the water tank 2 through the water inlet on the water tank 2, then unscrew the fixing bolt 407 from the hydraulic support 1, and at this time move the connecting rod 9 to the left, so that the connecting rod 9 drives the L-shaped tooth plate 402 to move horizontally to the left, and then the intermittent gear 401 is no longer engaged with the L-shaped tooth plate 402, and then start the servo motor 301, at this time, the servo motor 301 drives the rotating shaft 302 and the stirring rod 303 to rotate, so that the dust reduction agent and clean water are quickly mixed, and when the mixing is completed and dust reduction work is required, the L-shaped tooth plate 402 is moved back to its original position through the connecting rod 9, so that the L-shaped tooth plate 402 is engaged with the intermittent gear 401, and then start the servo motor 301 and the water pump 5, the water pump 5 pumps the water in the water tank 2 out through the outlet pipe 6. The bellows 7 is sent into the water spray pipe 404, and then water mist is sprayed at the atomizing nozzle on the surface of the water spray pipe 404 to reduce dust. At the same time, the rotating shaft 302 drives the stirring rod 303 and the intermittent gear 401 to rotate. The stirring rod 303 rotates to stir the water to avoid the precipitation of the dust reduction agent and improve the dust reduction effect. When the gear teeth of the intermittent gear 401 rotate to mesh with the L-shaped tooth plate 402, it can drive the L-shaped tooth plate 402 to move vertically upward, and then drive the water spray pipe 404 to move vertically upward. When the gear teeth of the intermittent gear 401 are not meshed with the L-shaped tooth plate 402, the L-shaped tooth plate 402 is reset vertically downward under the action of the reset mechanism 8, and then under the continuous rotation of the intermittent gear 401, the water spray pipe 404 performs vertical reciprocating movement, so that the spraying range of the water spray pipe 404 is larger, thereby improving the overall dust reduction effect during coal mining.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for a hydraulic support, comprising a hydraulic support (1) and a water tank (2), wherein two water tanks (2) are provided, the two water tanks (2) are both provided inside the left side of the hydraulic support (1), and the right ends of the two water tanks (2) are connected to each other through a connecting pipe, characterized in that: A lifting mechanism (4) is arranged on the left side of the hydraulic support (1), and the lifting mechanism (4) comprises an L-shaped tooth plate (402), and two L-shaped tooth plates (402) are arranged symmetrically in front and back, and the two L-shaped tooth plates (402) are connected by a connecting rod (9), and the left ends of the two L-shaped tooth plates (402) are each provided with a connecting block (403), and a water spray pipe (404) is arranged inside the connecting block (403), and a sliding block (405) is arranged at the lower end of the L-shaped tooth plate (402), and the sliding block (405) is fixedly installed inside the hydraulic support (1) by a fixing bolt (407).

2. The dust suppression device for a hydraulic support according to claim 1, characterized in that: A reset mechanism (8) is arranged inside the L-shaped tooth plate (402), and the reset mechanism (8) includes a movable groove (801), and the movable groove (801) is opened inside the L-shaped tooth plate (402), and a telescopic rod (802) and a reset spring (803) are arranged inside the movable groove (801), and the reset spring (803) is sleeved on the circumferential surface of the upper end of the telescopic rod (802), the upper end of the reset spring (803) is connected to the inner top of the L-shaped tooth plate (402), and the lower end of the telescopic rod (802) is connected to the upper surface of the slider (405).

3. The dust suppression device for a hydraulic support according to claim 1, characterized in that: The inner wall of the hydraulic support (1) is provided with a slide groove (406), and two slide grooves (406) are provided, and the inner ends of the two sliding blocks (405) are respectively slidably installed inside the two slide grooves (406).

4. The dust suppression device for a hydraulic support according to claim 1, characterized in that: A stirring mechanism (3) is arranged inside the water tank (2), and the stirring mechanism (3) comprises a servo motor (301). The servo motor (301) is arranged at the front end of the hydraulic support (1) through a motor box. The power output end of the servo motor (301) is drivingly connected to a rotating shaft (302). A stirring rod (303) is arranged on the circumferential surface of the rotating shaft (302), and two groups of stirring rods (303) are arranged. The two groups of stirring rods (303) are respectively arranged inside the two water tanks (2).

5. The dust suppression device for hydraulic support according to claim 4, characterized in that: An intermittent gear (401) is arranged on the circumferential surface of the rotating shaft (302), and two intermittent gears (401) are arranged, and the left ends of the two intermittent gears (401) are respectively meshed and connected with the two L-shaped toothed plates (402).

6. The dust suppression device for hydraulic support according to claim 1, characterized in that: A water pump (5) is provided at the right end of the upper surface of the water tank (2) at the front end, and a water outlet pipe (6) is provided at the rear end of the water pump (5). The left end of the water outlet pipe (6) is connected to the water spray pipe (404) through a bellows (7). A water suction pipe is provided at the lower end of the water pump (5), and the lower end of the water suction pipe is plugged into the inner bottom of the water tank (2) at the front end.

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