Hydraulic device frame for assisting in controlling descending height of conveyor

Abstract

The utility model discloses a hydraulic device frame for assisting in controlling the lower height of a conveyor, which belongs to the technical field of coal mining and comprises a load-bearing hydraulic prop. More than three anti-high-suction cylinders are distributed on the periphery of each load-bearing hydraulic prop in a circumferential array mode, the side wall of each anti-high-suction cylinder is sequentially communicated with a one-way suction nozzle and a sealed deflation nozzle, the top end of each anti-high-suction cylinder is communicated with a corrugated air pipe, and the anti-high-suction cylinders and the corrugated air pipes support the whole load-bearing hydraulic prop. According to the hydraulic device frame, the lower-height-preventing suction cylinder, the corrugated air pipe and other components are distributed around the bearing type hydraulic supporting column, the components are equivalent to a secondary protection device, the device can be additionally arranged on an existing hydraulic supporting column, the structure is simple, economical efficiency and adaptability are high, and the lower-height phenomenon can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a hydraulic device frame for assisting in controlling the lowering height of a conveyor. Background Art

[0002] The shearer conveyor is a specialized piece of equipment that plays a key role in coal mining operations, combining support and transportation functions within the mining area. During mining, hydraulic struts are used to lift the front and top beams to a certain height, supporting the top of the mining area. The shearer conveyor then moves horizontally to mine coal, supported vertically by hydraulic struts.

[0003] However, since the front beam and the top beam bear a very large load, they will rise or fall when moving forward. Long-term rising or falling will affect the normal production of the working surface. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hydraulic device frame for assisting in controlling the lowering height of a transport aircraft. The hydraulic device frame is provided with anti-lowering suction cups, corrugated air pipes and other components around the load-bearing hydraulic pillars. The components are equivalent to a "secondary protection" device. The device can be installed on the existing hydraulic pillars. It has a simple structure, high economy and adaptability, and can effectively avoid the "lowering height" phenomenon.

[0005] In order to solve the above technical problems, the technical solution of the present utility model is achieved as follows:

[0006] A hydraulic device frame for assisting in controlling the lowering height of a conveyor, comprising a load-bearing hydraulic support, the load-bearing hydraulic support comprising a cylinder and a piston rod, the ends of the cylinder and the piston rod being fixed with a lower flange and an upper flange, respectively, the upper flange being fixedly mounted to a front beam or a top beam via a universal seat; at least three lower guide rods and upper guide rods are distributed in a circumferential array around each heavy hydraulic support, the lower guide rods and the upper guide rods being respectively plugged and fixed in the lower flange and the upper flange, and the upper guide rod being retractably received within the lower guide rod; The lower guide rod is equipped with an anti-drop high suction cylinder located on the lower flange, and the side walls of the anti-drop high suction cylinder are connected with a one-way air suction nozzle and a sealed air release nozzle in sequence. The lower guide rod and the upper guide rod are also equipped with a corrugated air pipe connected to the top of the anti-drop high suction cylinder, and the upper and lower ends of the corrugated air pipe are fixedly connected to the upper flange and the anti-drop high suction cylinder by glue respectively; the conveyor includes a base, and a front beam and a top beam are installed above the base, and load-bearing hydraulic strut supports are installed between the base and the front beam, and between the base and the top beam.

[0007] By adopting the above scheme, the bracket arranges anti-falling suction cups, corrugated air pipes and other components around the load-bearing hydraulic pillars. The components are equivalent to "secondary protection" devices. The device can be installed on existing hydraulic pillars. It has a simple structure and high economy and adaptability. The corrugated air pipe will rise with the rise of the piston rod, and a large amount of air will enter the corrugated air pipe when it rises. The gas in the filled corrugated air pipe will not be actively discharged, which can effectively avoid the "falling" phenomenon.

[0008] As a preferred embodiment of a hydraulic device frame for assisting in controlling the lower height of a conveyor, the upper surface of the lower flange is provided with more than three circumferentially arrayed sockets, and each lower guide rod is interference-fitted into the first socket; the lower surface of the upper flange is provided with more than three circumferentially arrayed sockets, and each upper guide rod is interference-fitted into the second socket.

[0009] By adopting the above solution, in order to facilitate the upward and downward guidance of the corrugated air pipe during lifting, the corrugated air pipe is mounted on the lower guide rod and the upper guide rod, so that the corrugated air pipe rises and falls with the lifting of the upper guide rod, thereby improving the stability of the corrugated air pipe during lifting.

[0010] As a preferred embodiment of a hydraulic device frame for assisting in controlling the lower height of a conveyor, an air intake port is provided at the end of a one-way air suction nozzle, and a mouth core located at the air intake port is installed inside the one-way air suction nozzle, and the mouth core is slidably installed on a sliding rod fixed inside the one-way air suction nozzle, and a spring is mounted on the sliding rod to push the mouth core toward the air intake port; wherein the diameter of the mouth core is larger than the diameter of the air intake port; the mouth core can completely block the air intake port under the push of the spring.

[0011] The above solution is adopted to achieve one-way air intake of the anti-falling high suction cup. When the corrugated air tube rises with the piston rod, the corrugated air tube is in a negative pressure state. At this time, the air pressure will squeeze the mouth core and open the air inlet, and the air will enter the corrugated air tube until the air pressure inside and outside the corrugated air tube is kept consistent.

[0012] As a preferred embodiment of a hydraulic device frame for assisting in controlling the lower height of a conveyor, a bleed port is provided at the end of the sealed bleed nozzle, and a bleed bolt is assembled in the bleed port through a threaded seal.

[0013] With the above solution, in order to lower the piston rod, the bleed bolt needs to be removed manually when lowering the piston rod. Since the piston rod will remain unchanged for several months after rising, only manual operation is required when the piston rod needs to be lowered.

[0014] As a preferred embodiment of a hydraulic device frame for assisting in controlling the lowering height of a conveyor, the internal support of the anti-lowering suction cylinder is welded with a plurality of reinforcing ribs, and a plurality of ventilation holes are provided through each of the reinforcing ribs.

[0015] By adopting the above solution, in order to improve the overall load-bearing capacity of the anti-falling high suction cylinder, multiple thickened reinforcing ribs are installed inside the anti-falling high suction cylinder to improve the overall load-bearing capacity and reliability of the anti-falling high suction cylinder.

[0016] As a preferred embodiment of a hydraulic device frame for assisting in controlling the descent height of a conveyor, the bottom end of the corrugated air pipe is connected to a plurality of air nozzles distributed in a circumferential array, and the top end of the anti-descent suction cylinder is provided with air holes for use with the air nozzles; the air nozzles are sealed and assembled in the air holes one by one.

[0017] By adopting the above solution, in order to facilitate the docking of the corrugated air pipe and the anti-fall height suction cylinder, the air delivery nozzle and the air delivery hole are used to achieve the docking of the two, which will be more convenient during installation.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] 1. The support is equipped with anti-falling suction cups, corrugated air pipes and other components around the load-bearing hydraulic support. This component is equivalent to a "secondary protection" device. The device can be installed on existing hydraulic supports. It has a simple structure and is economical and adaptable. The corrugated air pipe rises with the rise of the piston rod. When the corrugated air pipe rises, a large amount of air enters and fills it. Since the gas in the filled corrugated air pipe is not actively discharged, the "falling" phenomenon can be effectively avoided.

[0020] 2. In order to facilitate the upward and downward guidance of the corrugated air tube during lifting, the corrugated air tube is installed on the lower guide rod and the upper guide rod, so that the corrugated air tube rises and falls with the lifting of the upper guide rod, thereby improving the stability of the corrugated air tube during lifting;

[0021] 3. In order to achieve one-way air intake of the anti-falling suction cup, when the corrugated air tube rises with the piston rod, the corrugated air tube is in a negative pressure state. At this time, the air pressure will squeeze the mouthpiece and open the air inlet, and air will enter the corrugated air tube until the air pressure inside and outside the corrugated air tube is consistent;

[0022] 4. In order to lower the piston rod, it is necessary to manually remove the bleed bolt when lowering the piston rod. Because the piston rod will remain unchanged for several months after it is raised, when the piston rod needs to be lowered, only manual operation is required;

[0023] 5. In order to improve the overall load-bearing capacity of the anti-falling high suction cup, multiple thickened reinforcement ribs are installed inside it to improve the overall load-bearing capacity and reliability of the anti-falling high suction cup;

[0024] 6. In order to facilitate the docking of the corrugated air pipe and the anti-fall height suction cup, the air nozzle and the air hole are used to achieve the docking of the two, which will be more convenient during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 This is a three-dimensional structural diagram of the utility model after being applied to a transport aircraft;

[0027] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0028] Figure 3 for Figure 2 explosion Figure 1 ;

[0029] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0030] Figure 5 for Figure 2 explosion Figure 2 ;

[0031] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0032] Figure 7 For display Figure 2 A three-dimensional structural diagram of the interior;

[0033] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0034] Figure 9 for Figure 7 A partial enlarged view of point D in the middle;

[0035] Figure 10 for Figure 7 A partial enlarged view of point E in the middle;

[0036] Figure 11 For display Figure 4 The internal three-dimensional structure diagram of the medium-defense lower high suction cup.

[0037] Markings in the figure: 1-base; 2-front beam; 3-top beam; 4-load-bearing hydraulic support; 5-air nozzle; 6-air hole; 7-cylinder; 8-piston rod; 9-lower flange; 10-upper flange; 11-lower guide rod; 12-upper guide rod; 13-anti-falling suction cup; 14-one-way suction nozzle; 15-sealed air release nozzle; 16-corrugated air pipe; 17-jack one; 18-jack two; 19-mouth core; 20-slide rod; 21-spring; 22-air release bolt; 23-reinforcement rib; 24-vent. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] like Figures 1 to 11 As shown, a hydraulic device frame for auxiliary control of the lower height of the conveyor is used for supporting and transporting coal in the mining area. It includes a load-bearing hydraulic support 4, which includes a cylinder 7 and a piston rod 8. The ends of the cylinder 7 and the piston rod 8 are respectively fixed with a lower flange 9 and an upper flange 10, and the upper flange 10 is fixedly installed with the front beam 2 or the top beam 3 through a universal seat; each heavy hydraulic support is circumferentially arrayed with more than three lower guide rods 11 and upper guide rods 12, which are respectively plugged and fixed in the lower flange 9 and the upper flange 10, and the upper guide rod 12 is lifted and stored in the lower guide rod. Rod 11; the lower guide rod 11 is equipped with an anti-lowering high suction cylinder 13 located on the lower flange 9, and the side walls of the anti-lowering high suction cylinder 13 are connected with a one-way air suction nozzle 14 and a sealed air release nozzle 15 in sequence. The lower guide rod 11 and the upper guide rod 12 are also equipped with a corrugated air pipe 16 connected to the top of the anti-lowering high suction cylinder 13, and the upper and lower ends of the corrugated air pipe 16 are fixedly connected to the upper flange 10 and the anti-lowering high suction cylinder 13 by glue respectively; the conveyor includes a base 1, and a front beam 2 and a top beam 3 are installed above the base 1. The load-bearing hydraulic struts 4 are supported and installed between the base 1 and the front beam 2, and between the base 1 and the top beam 3. The bracket is provided with components such as an anti-falling high suction cup 13 and a corrugated air pipe 16 around the load-bearing hydraulic support 4. The components are equivalent to a "secondary protection" device. The device can be installed on the existing hydraulic support. It has a simple structure and is highly economical and adaptable. The corrugated air pipe 16 will rise with the rise of the piston rod 8, and a large amount of air will enter the corrugated air pipe 16 when it rises. Since the gas in the filled corrugated air pipe 16 will not be actively discharged, when the load-bearing hydraulic support 4 is damaged, it can still bear the weight through multiple corrugated air pipes 16, which greatly improves the safety of underground operations.

[0040] like Figure 3 、 Figure 5 As shown, the upper surface of the lower flange 9 is provided with more than three circumferentially arrayed insertion holes 17, each of which is fitted with an interference fit within the first insertion hole 17. The lower surface of the upper flange 10 is provided with more than three circumferentially arrayed insertion holes 18, each of which is fitted with an interference fit within the second insertion hole 18. To facilitate the upward and downward guidance of the corrugated air tube 16 during lifting, the corrugated air tube 16 is sleeved over the lower guide rod 11 and the upper guide rod 12, allowing the corrugated air tube 16 to rise and fall with the upper guide rod 12, thereby improving the stability of the corrugated air tube 16 during lifting.

[0041] like Figure 10 As shown, the one-way air suction nozzle 14 has an air inlet at the end thereof, and a nozzle core 19 is installed inside the one-way air suction nozzle 14, which is located at the air inlet. The nozzle core 19 is slidably mounted on a slide rod 20 fixed inside the one-way air suction nozzle 14, and a spring 21 is mounted on the slide rod 20 to push the nozzle core 19 toward the air inlet. The diameter of the nozzle core 19 is larger than the diameter of the air inlet. The nozzle core 19 can completely block the air inlet under the push of the spring 21. In order to achieve one-way air intake of the anti-falling high suction cylinder 13, when the corrugated air pipe 16 rises with the piston rod 8, the inside of the corrugated air pipe 16 is in a negative pressure state. At this time, the air pressure will squeeze the nozzle core 19 and open the air inlet, and air will then enter the corrugated air pipe 16 until the air pressure inside and outside the corrugated air pipe 16 remains consistent.

[0042] like Figure 10 As shown, a bleed port is provided at the end of the sealed bleed nozzle 15, in which a bleed bolt 22 is threadedly sealed. To lower the piston rod 8, the bleed bolt 22 needs to be manually removed when lowering the piston rod 8. Since the piston rod 8 remains unchanged for several months after being raised, manual operation is sufficient when the piston rod 8 needs to be lowered.

[0043] like Figures 10 and 11 As shown, the internal support of the anti-fall high suction cylinder 13 is welded with multiple reinforcement ribs 23, and each reinforcement rib 23 is penetrated by multiple ventilation holes 24. In order to improve the overall load-bearing capacity of the anti-fall high suction cylinder 13, multiple thickened reinforcement ribs 23 are installed inside it to improve the overall load-bearing capacity and reliability of the anti-fall high suction cylinder 13.

[0044] like Figure 4 、 Figure 6 、 Figure 10As shown, the bottom end of the corrugated air tube 16 is connected to a plurality of circumferentially arranged gas delivery nozzles 5. The top end of the anti-fall high suction cylinder 13 is provided with gas delivery holes 6 for use with the gas delivery nozzles 5. The gas delivery nozzles 5 are sealed and assembled in the gas delivery holes 6. To facilitate the connection between the corrugated air tube 16 and the anti-fall high suction cylinder 13, the gas delivery nozzles 5 and the gas delivery holes 6 are used to achieve the connection between the two, which makes installation more convenient.

[0045] The working principle of this utility model:

[0046] During coal mining operations, the bellows 16 rises with the piston rod 8, and as it rises, a large amount of air enters and fills the bellows 16. Since the air in the filled bellows 16 is not actively discharged, even if the load-bearing hydraulic support 4 is damaged, the multiple bellows 16 can still bear the load, effectively avoiding the "lower high" phenomenon. When lowering the piston rod 8, the bleed bolt 22 needs to be manually removed in advance, and the air in the bellows 16 will be discharged as the piston rod 8 descends.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic device frame for assisting in controlling the lower height of a conveyor, comprising a load-bearing hydraulic support (4), wherein the load-bearing hydraulic support (4) comprises a cylinder (7) and a piston rod (8), wherein the ends of the cylinder (7) and the piston rod (8) are respectively fixed with a lower flange (9) and an upper flange (10); Its characteristics are: Each load-bearing hydraulic support (4) is provided with more than three lower guide rods (11) and upper guide rods (12) in a circumferential array. The lower guide rods (11) and the upper guide rods (12) are respectively plugged and fixed in the lower flange (9) and the upper flange (10), and the upper guide rod (12) is lifted and stored in the lower guide rod (11); the lower guide rod (11) is provided with an anti-lowering high suction cylinder (13) located on the lower flange (9), and the side walls of the anti-lowering high suction cylinder (13) are connected in sequence with a one-way suction nozzle (14) and a sealed air release nozzle (15); the lower guide rod (11) and the upper guide rod (12) are also provided with a corrugated air pipe (16) connected to the top of the anti-lowering high suction cylinder (13), and the upper and lower ends of the corrugated air pipe (16) are respectively fixedly connected to the upper flange (10) and the anti-lowering high suction cylinder (13).

2. The hydraulic device frame for assisting in controlling the lower height of a conveyor according to claim 1, characterized in that: The upper surface of the lower flange (9) is provided with more than three circumferentially arrayed insertion holes (17), and each lower guide rod (11) is inserted into the insertion hole (17) one by one through interference fit; the lower surface of the upper flange (10) is provided with more than three circumferentially arrayed insertion holes (18), and each upper guide rod (12) is inserted into the insertion hole (18) one by one through interference fit.

3. The hydraulic device frame for assisting in controlling the lower height of a conveyor according to claim 1, characterized in that: An air inlet is provided at the end of the one-way air suction nozzle (14), and a nozzle core (19) located at the air inlet is installed inside the one-way air suction nozzle (14). The nozzle core (19) is slidably installed on a slide rod (20) fixed inside the one-way air suction nozzle (14), and a spring (21) is installed on the slide rod (20) to push the nozzle core (19) toward the air inlet.

4. The hydraulic device frame for auxiliary control of the lower height of a conveyor according to claim 3, characterized in that: The diameter of the mouthpiece (19) is larger than the diameter of the air inlet; the mouthpiece (19) can completely block the air inlet under the pushing action of the spring (21).

5. The hydraulic device frame for assisting in controlling the lower height of a conveyor according to claim 1, characterized in that: The end of the sealed air release nozzle (15) is provided with an air release port, and an air release bolt (22) is assembled in the air release port through threaded sealing.

6. The hydraulic device frame for assisting in controlling the lower height of a conveyor according to claim 1, characterized in that: The internal support of the anti-falling high suction cylinder (13) is provided with a plurality of reinforcing ribs (23), and a plurality of vent holes (24) are provided through each reinforcing rib (23).

7. The hydraulic device frame for assisting in controlling the lower height of a conveyor according to claim 1, characterized in that: The bottom end of the corrugated air pipe (16) is connected to a plurality of air delivery nozzles (5) distributed in a circumferential array, and the top end of the anti-fall high suction cylinder (13) is provided with an air delivery hole (6) used in conjunction with the air delivery nozzle (5); the air delivery nozzles (5) are sealed and assembled in the air delivery holes (6) one by one.

8. The hydraulic device stand for auxiliary control of the lower height of a conveyor according to any one of claims 1 to 7, characterized in that: The transporter is applied to a transporter, which comprises a base (1), a front beam (2) and a top beam (3) being installed above the base (1), and a load-bearing hydraulic support (4) being supported and installed between the base (1) and the front beam (2), and between the base (1) and the top beam (3).

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