Dust removal device

Abstract

The application provides a dust removal device, comprising: a hanger rod connected with an anchor rod on a roadway roof, provided with a slot; a telescopic rod having relatively arranged telescopic ends and fixed ends, the telescopic ends having relatively arranged initial states and elongated states; a first telescopic air duct for dust removal, the telescopic ends being drivingly connected with the first telescopic air duct, the telescopic ends being capable of driving the first telescopic air duct to be telescoped when the telescopic ends are switched between the initial states and the elongated states; a first sliding device having relatively arranged first and second ends, the first end of the first sliding device being movably arranged in the slot, the second end of the first sliding device being connected with the fixed ends, the fixed ends being moved relative to the hanger rod through the first sliding device; and a brake device having relatively arranged moving and braking states, the fixed ends being capable of being limited from moving relative to the hanger rod when the brake device is in the braking state. Through the technical scheme provided by the application, the problem that the telescopic rod is prone to slipping in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal devices, and in particular to a dust removal device. Background Art

[0002] Currently, coal mining machines generate a large amount of dust during the mining process, requiring a dust removal device to remove dust from the roadway. In the prior art, the dust removal device includes a boom, a telescopic rod, and a telescopic air duct. The telescopic rod is movably connected to the boom and can drive the telescopic air duct to move. However, as the telescopic rod moves relative to the boom, the boom cannot always remain horizontal within the roadway and is prone to slipping on the boom. When the telescopic rod moves away from the dust collection area, this reduces the dust removal effect of the dust removal device. When the telescopic rod moves toward the dust collection area, the telescopic rod is prone to falling off the boom, causing the dust removal device to malfunction. Summary of the Invention

[0003] The present invention provides a dust removal device to solve the problem in the prior art that a telescopic rod is prone to slippage.

[0004] The present invention provides a dust removal device, the dust removal device comprising: a boom, connected to an anchor rod on a tunnel roof, a slot being provided on the boom; a telescopic rod, the telescopic rod having a telescopic end and a fixed end relatively arranged, the fixed end being movably connected to the boom, the telescopic rod being movable along the length direction of the boom, the telescopic end having an initial state and an extended state relatively arranged; a first telescopic air cylinder, the first telescopic air cylinder being used for dust removal, the telescopic end being drivably connected to the first telescopic air cylinder, and when the telescopic end switches between the initial state and the extended state, the telescopic end can drive the first telescopic air cylinder to extend and retract; a first sliding device, the first sliding device having a first end and a second end relatively arranged, the first end of the first sliding device being movably arranged in the slot, the second end of the first sliding device being connected to the fixed end, and the fixed end being movable relative to the boom through the first sliding device; a braking device being arranged between the fixed end and the boom, the braking device having a moving state and a braking state relatively arranged, and when the braking device is in the braking state, it can limit the movement of the fixed end relative to the boom.

[0005] Furthermore, the braking device includes: a braking body, the braking body having a first accommodating hole, and the fixed end is inserted into the first accommodating hole; a first cylinder, arranged on the side of the braking body close to the boom; a friction block, arranged on the piston of the first cylinder, and the piston can drive the friction block to move toward the direction of abutting the boom or away from the boom. When the friction block contacts the boom, the braking device is in a braking state.

[0006] Furthermore, the first telescopic air duct has an inlet and an outlet relatively set, and the dust removal device also includes: a supporting device, which is arranged at the inlet of the first telescopic air duct, the supporting device has a first end and a second end relatively set, the first end of the supporting device is connected to the telescopic rod, and the second end of the supporting device is used to support at the bottom of the alley; a fixed air duct, the fixed air duct has an inlet and an outlet relatively set, the inlet of the fixed air duct is connected to the outlet of the first telescopic air duct, and a lifting ear is provided on the side of the fixed air duct close to the telescopic rod, and the first sliding device is connected to the lifting ear.

[0007] Furthermore, the supporting device includes: a supporting frame, having a connecting hole and a fixing hole, the connecting hole is sleeved on the telescopic end, the fixing hole is sleeved on the outside of the first telescopic air tube, and the structure of the fixing hole is adapted to the structure of the first telescopic air tube; a first spring buckle, arranged on the side of the supporting frame away from the connecting hole, the first spring buckle is connected to the first telescopic air tube; a second cylinder, arranged at the bottom of the supporting frame, one end of the second cylinder is connected to the supporting frame; a supporting base, the other end of the second cylinder is connected to the supporting base, and the second cylinder can adjust the distance between the supporting frame and the supporting base.

[0008] Furthermore, the first sliding device includes: a sliding body, the sliding body has a second accommodating hole, and the fixed end is inserted into the second accommodating hole; a pulley is arranged on the side of the sliding body close to the suspension rod, and the pulley is movably arranged in the slot; a first connecting ear plate is arranged on the side of the sliding body close to the fixed air duct; a second spring buckle is arranged on the first connecting ear plate, and the second spring buckle is connected to the fixed air duct.

[0009] Furthermore, the telescopic rod includes a telescopic main rod and multiple telescopic units connected in sequence. A second sliding device and a fixing member are provided between the telescopic unit and the first telescopic air tube. A plurality of hanging rings are provided on the side of the first telescopic air tube close to the telescopic rod. One end of the second sliding device is sleeved in the telescopic unit, and the other end of the second sliding device is connected to some of the hanging rings; one end of the fixing member is fixed to the end of the telescopic unit, and the other end of the fixing member is connected to the remaining hanging rings.

[0010] Furthermore, the second sliding device includes: a bracket, the bracket has a third accommodating hole, the telescopic unit is inserted into the third accommodating hole; a first roller and a second roller are arranged on the bracket, the telescopic unit is inserted between the first roller and the second roller, the first roller and the second roller and the telescopic unit can rotate relative to each other, the first roller is located above the telescopic unit, and the second roller is located below the telescopic unit; a second connecting ear plate is arranged on the side of the bracket close to the first telescopic air duct; a third spring buckle is arranged on the second connecting ear plate, and the third spring buckle is connected to the hanging ring.

[0011] Furthermore, the dust removal device also includes: a second telescopic air duct, which is coaxially arranged with the fixed air duct, the second telescopic air duct has an inlet and an outlet relatively arranged, and the inlet of the second telescopic air duct is connected to the outlet of the fixed air duct; a transition air duct, the transition air duct includes a first horizontal section, an inclined section and a second horizontal section connected in sequence, the first horizontal section is coaxially arranged and connected to the outlet of the second telescopic air duct; a third telescopic air duct, the third telescopic air duct is movably connected to the suspension rod, the third telescopic air duct has an inlet and an outlet relatively arranged, and the inlet of the third telescopic air duct is coaxially arranged and connected to the second horizontal section.

[0012] Furthermore, the dust removal device also includes: a dry dust collector, the inlet of the dry dust collector is connected to the outlet of the third telescopic air duct; an axial flow fan, the axial flow fan is connected to the outlet of the dry dust collector; a translation part, the dry dust collector and the axial flow fan are fixedly arranged on the translation part, and the translation part can drive the dry dust collector and the axial flow fan to move.

[0013] Furthermore, the dust removal device also includes a control device, which is connected to the braking device and the telescopic rod respectively. The control device can control the telescopic rod to switch between an initial state and an extended state, and the control device can control the braking device to switch between a braking state and a moving state.

[0014] According to the technical solution of the present invention, the boom is connected to the anchor rod on the top plate, the fixed end is movably connected to the boom, the telescopic rod can move along the length of the boom, the dust removal duct is connected to the telescopic end of the telescopic rod, and the telescopic end can drive the dust removal duct to move. The first sliding device and the braking device are arranged between the fixed end of the telescopic rod and the boom. When the telescopic end is in the initial state, the first telescopic duct is in the contracted state. When the coal mining machine moves forward, the telescopic end can switch to the extended state. At this time, the telescopic end drives the first telescopic duct to move, thereby ensuring the dust removal effect of the dust removal device. When the telescopic end is completely switched to the telescopic state, the fixed end can move forward relative to the boom, thereby driving the first telescopic duct to continue moving forward, thereby further ensuring the dust removal effect of the dust removal device. The first sliding device can drive the fixed end to move relative to the boom. When the fixed end moves to the desired position, the braking device can brake the fixed end, thereby preventing the fixed rod from slipping on the boom. Such a setting can not only prevent the dust removal duct from moving backward during the dust removal process, affecting the dust removal effect of the dust removal device, but also prevent the telescopic rod from sliding forward due to inertia or the inclination of the suspension rod, thereby causing the telescopic rod to slide off the suspension rod, thereby ensuring the normal use of the dust removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A schematic structural diagram of a dust removal device provided in an embodiment of the present invention is shown;

[0017] Figure 2 Shown Figure 1 A partial enlarged view of point A in the middle;

[0018] Figure 3 It shows a schematic structural diagram of the telescopic end in an initial state provided by an embodiment of the present invention;

[0019] Figure 4 It shows a schematic structural diagram of the telescopic end in an extended state provided by an embodiment of the present invention;

[0020] Figure 5 shows a side view of a telescopic end in an extended state according to an embodiment of the present invention;

[0021] Figure 6 shows an axonometric view of a first sliding device provided according to an embodiment of the present invention;

[0022] Figure 7 It shows a schematic structural diagram of a first sliding device provided in an embodiment of the present invention;

[0023] Figure 8 A schematic structural diagram of a braking device according to an embodiment of the present invention is shown;

[0024] Figure 9 A schematic structural diagram of a supporting device according to an embodiment of the present invention is shown;

[0025] Figure 10 shows an axonometric view of a second sliding device provided according to an embodiment of the present invention;

[0026] Figure 11 A schematic structural diagram of a second sliding device provided in an embodiment of the present invention is shown;

[0027] Figure 12 A schematic diagram of a control device according to an embodiment of the present invention is shown.

[0028] The above drawings include the following reference numerals:

[0029] 10. Boom;

[0030] 20. Telescopic rod; 21. Telescopic end; 22. Fixed end; 23. Telescopic main rod; 24. Telescopic unit;

[0031] 30. First telescopic air duct; 31. Lifting ring;

[0032] 40, first sliding device; 41, sliding body; 411, second accommodating hole; 42, pulley; 43, first connecting lug; 44, second spring buckle;

[0033] 50, braking device; 51, braking body; 511, first accommodating hole; 52, first cylinder; 53, friction block;

[0034] 60, supporting device; 61, supporting frame; 611, connecting hole; 612, fixing hole; 62, first spring buckle; 63, second cylinder; 64, supporting base;

[0035] 70, fixed wind tube; 71, lifting lug;

[0036] 80, second sliding device; 81, bracket; 811, third accommodating hole; 82, first roller; 83, second roller; 84, second connecting lug; 85, third spring buckle;

[0037] 90, fixing piece;

[0038] 100, second telescopic wind tube;

[0039] 110, transition air duct;

[0040] 120, third telescopic wind tube;

[0041] 130, dry dust collector;

[0042] 140, axial flow fan;

[0043] 150, translation piece;

[0044] 160, control device; 161, first air inlet throttle valve; 162, first three-position four-way manual pneumatic valve; 163, second air inlet throttle valve; 164, two-position three-way manual pneumatic valve; 165, second three-position four-way manual pneumatic valve; 166, third air inlet throttle valve; 167, fourth air inlet throttle valve; 168, first exhaust silencer joint; 169, second exhaust silencer joint; 1610, third exhaust silencer joint;

[0045] 1, anchor rod. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0047] like Figures 1 to 4 As shown, the present invention provides a dust removal device, which includes a boom 10, a telescopic rod 20, a first telescopic air duct 30, a first sliding device 40 and a braking device 50. The boom 10 is connected to the anchor rod 1 on the tunnel roof, and a slot is provided on the boom 10. The telescopic rod 20 has a telescopic end 21 and a fixed end 22 arranged opposite to each other. The fixed end 22 is movably connected to the boom 10, and the telescopic rod 20 can move along the length direction of the boom 10. The telescopic end 21 has an initial state and an extended state arranged opposite to each other. The first telescopic air duct 30 is used for dust removal. The telescopic end 21 is driven to be connected to the first telescopic air duct 30. When the telescopic end 21 switches between the initial state and the extended state, the telescopic end 21 can drive the first telescopic air duct 30 to extend and retract. The first sliding device 40 has a first end and a second end arranged opposite to each other. The first end of the first sliding device 40 is movably arranged in the slot, and the second end of the first sliding device 40 is connected to the fixed end 22. The fixed end 22 moves relative to the boom 10 via the first sliding device 40. The braking device 50 is disposed between the fixed end 22 and the boom 10 . The braking device 50 has a relatively movable state and a braking state. When the braking device 50 is in the braking state, it can restrict the fixed end 22 from moving relative to the boom 10 .

[0048] According to the technical solution of the present invention, the boom 10 is connected to the anchor rod 1 on the top plate, the fixed end 22 is movably connected to the boom 10, the telescopic rod 20 can move on the boom 10 along the length direction of the boom 10, the dust removal air duct is connected to the telescopic end 21 of the telescopic rod 20, and the telescopic end 21 can drive the dust removal air duct to move. The first sliding device 40 and the braking device 50 are arranged between the fixed end 22 of the telescopic rod 20 and the boom 10. When the telescopic end 21 is in the initial state, the first telescopic air duct 30 is in the retracted state. When the coal mining machine moves forward, the telescopic end 21 can be switched to the extended state. At this time, the telescopic end 21 drives the first telescopic air duct 30 to move, thereby ensuring the dust removal effect of the dust removal device. When the telescopic end 21 is fully switched to the telescopic state, the fixed end 22 can move forward relative to the boom 10, thereby driving the first telescopic air duct 30 to continue to move forward, thereby further ensuring the dust removal effect of the dust removal device. The first sliding device 40 can drive the fixed end 22 to move relative to the boom 10. When the fixed end 22 moves to the desired position, the braking device 50 can brake the fixed end 22, thereby preventing the fixed rod from slipping on the boom 10. This arrangement can not only prevent the dust removal duct from moving backward during the dust removal process, affecting the dust removal effect of the dust removal device, but also prevent the telescopic rod 20 from sliding forward due to inertia or the tilt of the boom 10, thereby causing the telescopic rod 20 to slide off the boom 10, thereby ensuring the normal use of the dust removal device. One or more first sliding devices 40 and braking devices 50 can be provided. In the present application, the dust removal device includes two first sliding devices 40 and two braking devices 50.

[0049] like Figure 8 As shown, the braking device 50 includes a braking body 51, a first cylinder 52 and a friction block 53. The braking body 51 has a first accommodating hole 511, and the fixed end 22 is inserted into the first accommodating hole 511. The first cylinder 52 is arranged on the side of the braking body 51 close to the boom 10. The friction block 53 is arranged on the piston of the first cylinder 52, and the piston can drive the friction block 53 to move toward or away from the boom 10. When the friction block 53 contacts the boom 10, the braking device 50 is in a braking state. In the present application, the braking body 51 is composed of a first U-shaped frame and a first base plate, and the first U-shaped frame and the first base plate are connected by bolts, and the first cylinder 52 is arranged on the first base plate. With the above structure, the structure is simple, and it is convenient to assemble the braking device 50, and it is also convenient to set the braking device 50 between the boom 10 and the telescopic rod 20. The piston on the cylinder can drive the friction block 53 to move quickly, so that the telescopic rod 20 can be braked in time. In addition, the friction block 53 can avoid damage to the boom 10 during the braking of the telescopic rod 20, thereby increasing the service life of the boom 10.

[0050] Furthermore, the first telescopic air duct 30 has an inlet and an outlet arranged opposite to each other, and the dust removal device also includes a support device 60 and a fixed air duct 70. The support device 60 is arranged at the inlet of the first telescopic air duct 30, and the support device 60 has a first end and a second end arranged opposite to each other. The first end of the support device 60 is connected to the telescopic rod 20, and the second end of the support device 60 is used to support the bottom of the tunnel. The fixed air duct 70 has an inlet and an outlet arranged opposite to each other, and the inlet of the fixed air duct 70 is connected to the outlet of the first telescopic air duct 30. A lifting lug 71 is provided on the side of the fixed air duct 70 close to the telescopic rod 20, and the first sliding device 40 is connected to the lifting lug 71. The support device 60 is arranged at the front end of the first telescopic air duct 30, and the fixed air duct 70 is arranged at the rear end of the first telescopic air duct 30. The first telescopic air cylinder 30 usually removes dust under negative pressure. With such a configuration, the supporting device 60 and the fixed air cylinder 70 can fix the axial position of the first telescopic air cylinder 30 to prevent the first telescopic air cylinder 30 from tilting, thereby preventing the inlet of the first telescopic air cylinder 30 from being deformed due to negative pressure, thereby further ensuring the dust removal effect of the first telescopic air cylinder 30.

[0051] like Figure 5 and Figure 9 As shown, the support device 60 includes a support frame 61, a first spring buckle 62, a second cylinder 63 and a support base 64. The support frame 61 has a connecting hole 611 and a fixing hole 612. The connecting hole 611 is sleeved on the telescopic end 21, and the fixing hole 612 is sleeved on the outside of the first telescopic air cylinder 30. The structure of the fixing hole 612 is compatible with the structure of the first telescopic air cylinder 30. The first spring buckle 62 is arranged on the side of the support frame 61 away from the connecting hole 611, and the first spring buckle 62 is connected to the first telescopic air cylinder 30. The first spring buckle 62 can fix the lower end of the first telescopic air cylinder 30 to prevent the first telescopic air cylinder 30 from tilting, and the fixing hole 612 can prevent the inlet of the first telescopic air cylinder 30 from being deformed. The second cylinder 63 is arranged at the bottom of the support frame 61, and one end of the second cylinder 63 is connected to the support frame 61. The other end of the second cylinder 63 is connected to the support base 64, which abuts the floor of the tunnel. The second cylinder 63 can adjust the distance between the support frame 61 and the support base 64. By changing the distance between the support frame 61 and the support base 64, the second cylinder 63 can ensure that the support base 64 is always in contact with the floor, thereby ensuring that the fixing hole 612 on the support frame 61 and the first telescopic air tube 30 are always coaxially arranged, preventing the support frame 61 itself from causing deformation of the first telescopic air tube 30.

[0052] like Figure 6 and Figure 7As shown, the first sliding device 40 includes a sliding body 41, a pulley 42, a first connecting lug 43, and a second spring catch 44. The sliding body 41 has a second receiving hole 411, into which the fixed end 22 is inserted. The pulley 42 is positioned on the side of the sliding body 41 near the boom 10 and is movably mounted within the slot. The first connecting lug 43 is positioned on the side of the sliding body 41 near the fixed air duct 70. The second spring catch 44 is mounted on the first connecting lug 43 and connected to the fixed air duct 70. In the present application, the sliding body 41 is composed of a second U-shaped frame and a second base plate, which are connected by bolts. The second base plate is provided with a fixed lug, to which the pulley 42 is secured by a fixing pin. This structure is simple and facilitates disassembly and maintenance of the first sliding device 40. It also facilitates the placement of the first sliding device between the boom 10 and the telescopic rod 20. The sliding of the pulley 42 can reduce the friction when the telescopic rod 20 moves, making it easier for the telescopic rod 20 to move relative to the boom 10. At the same time, by increasing or decreasing the number of the second spring buckles 44, the fixed air cylinder 70 and the first telescopic air cylinder 30 can be coaxially arranged.

[0053] Among them, the telescopic rod 20 includes a telescopic main rod 23 and a plurality of telescopic units 24 connected in sequence. A second sliding device 80 and a fixing member 90 are arranged between the telescopic unit 24 and the first telescopic air tube 30. The first telescopic air tube 30 is provided with a plurality of hanging rings 31 on the side close to the telescopic rod 20. One end of the second sliding device 80 is sleeved in the telescopic unit 24, and the other end of the second sliding device 80 is connected to some of the hanging rings 31; one end of the fixing member 90 is fixed to the end of the telescopic unit 24, and the other end of the fixing member 90 is connected to the remaining hanging rings 31. In the present application, the telescopic rod 20 includes four telescopic units 24, and each telescopic unit 24 is provided with two second sliding devices 80, so that the telescopic unit 24 drives the first telescopic air tube 30 to move when telescoping; at the same time, fixing parts 90 are provided between two adjacent telescopic units 24 and between the telescopic unit 24 adjacent to the telescopic main rod 23 and the telescopic main rod 23, so that the telescopic unit 24 can drive the first telescopic air tube 30 to move when telescoping, thereby avoiding relative sliding between the first telescopic air tube 30 and the telescopic rod 20.

[0054] like Figure 10 and Figure 11As shown, the second sliding device 80 comprises a bracket 81, a first roller 82, a second roller 83, a second connecting lug 84 and a third spring buckle 85. The bracket 81 has a third accommodating hole 811, and the telescopic unit 24 is arranged in the third accommodating hole 811. The first roller 82 and the second roller 83 are arranged on the bracket 81, and the telescopic unit 24 is arranged between the first roller 82 and the second roller 83, and the first roller 82 and the second roller 83 can rotate relative to the telescopic unit 24, the first roller 82 is located above the telescopic unit 24, and the second roller 83 is located below the telescopic unit 24. The first roller 82 and the second roller 83 are fixed on the bracket 81 by bolts, and the telescopic unit 24 is arranged between the first roller 82 and the second roller 83, which can improve the smoothness of the telescopic unit 24 driving the first telescopic air duct 30 to extend or retract, and can avoid damage to the telescopic unit 24 during the sliding process of the second sliding device 80, thereby prolonging the service life of the telescopic rod 20. The second connecting lug 84 is arranged on one side of the bracket 81 close to the first telescopic air duct 30, and the third spring buckle 85 is arranged on the second connecting lug 84, and the third spring buckle 85 is connected with the lifting ring 31, which can change the relative position between the first telescopic air duct 30 and the suspender 10 by increasing or decreasing the number of the third spring buckles 85, so that the first telescopic air duct 30 can be suitable for various situations, and can also avoid the first telescopic air duct 30 from being inclined during use.

[0055] Further, the dust removal device further comprises a second telescopic air duct 100, a transition air duct 110 and a third telescopic air duct 120. The second telescopic air duct 100 is coaxially arranged with the fixed air duct 70, and the second telescopic air duct 100 has an inlet and an outlet arranged oppositely, and the inlet of the second telescopic air duct 100 is connected with the outlet of the fixed air duct 70. The transition air duct 110 comprises a first horizontal section, an inclined section and a second horizontal section connected in sequence, and the first horizontal section is coaxially arranged with and connected to the outlet of the second telescopic air duct 100. The third telescopic air duct 120 is movably connected with the boom 10, and the third telescopic air duct 120 has an inlet and an outlet arranged oppositely, and the inlet of the third telescopic air duct 120 is coaxially arranged with and connected to the second horizontal section. The first telescopic air duct 30, the fixed air duct 70, the second telescopic air duct 100, the transition air duct 110 and the third telescopic air duct 120 are arranged in sequence, and the third telescopic air duct 120 can also move forward relative to the boom 10, so that the movable range of the dust removal device can be further improved, and the third telescopic air duct 120 is connected with the boom 10 and has a height difference with the first telescopic air duct 30, so that the transition air duct 110 with the inclined section is arranged to avoid the third telescopic air duct 120 from being inclined. In the present application, the transition air duct 110 and the fixed air duct 70 are made of steel material, and to avoid hard connection between the transition air duct 110 and the fixed air duct 70, the second telescopic air duct 100 is arranged between the transition air duct 110 and the fixed air duct 70, so that the tightness of the connection between the transition air duct 110 and the fixed air duct 70 can be ensured to avoid leakage, and at the same time, wear between the transition air duct 110 and the fixed air duct 70 can be avoided to improve the service life of the transition air duct 110 and the fixed air duct 70.

[0056] In the present application, the dust removal device further comprises a dry dust collector 130, an axial flow fan 140 and a translation member 150. The inlet of the dry dust collector 130 is connected with the outlet of the third telescopic air duct 120, the axial flow fan 140 is connected with the outlet of the dry dust collector 130, and the dry dust collector 130 and the axial flow fan 140 are fixedly arranged on the translation member 150, and the translation member 150 can drive the dry dust collector 130 and the axial flow fan 140 to move. The dry dust collector 130 and the axial flow fan 140 can be used to remove dust in the roadway, and the translation member 150 can drive the dry dust collector 130 and the axial flow fan 140 to move, so that the use range of the dust removal device can be further improved, and the dry dust collector 130 and the axial flow fan 140 can be moved conveniently, the labor intensity of workers can be reduced, and the labor cost can be reduced.

[0057] As Figure 12As shown, the dust removal device also includes a control device 160, which is connected to the braking device 50 and the telescopic rod 20 respectively. The control device 160 can control the telescopic rod 20 to switch between the initial state and the extended state, and the control device 160 can control the braking device 50 to switch between the braking state and the moving state. The control device 160 is connected to the braking device 50 and the telescopic rod 20, and is also connected to the downhole gas source. In this application, the control device 160 includes a first air intake throttle valve 161, a first three-position four-way manual pneumatic valve 162, a second air intake throttle valve 163, a two-position three-way manual pneumatic valve 164, a second three-position four-way manual pneumatic valve 165, a third air intake throttle valve 166, and a fourth air intake throttle valve 167. The air inlet of the first air intake throttle valve 161 is connected to the gas source. The P port of the first, three-position, four-way manual pneumatic valve 162 is connected to the outlet of the first air intake throttle valve 161. The R port of the first, three-position, four-way manual pneumatic valve 162 is connected to the first exhaust silencer connector 168. The A and B ports of the first, three-position, four-way manual pneumatic valve 162 are connected to the air intake and outlet of the pneumatic motor, respectively. The air intake of the second air intake throttle valve 163 is connected to the air source. The P port of the second, two-position, three-way manual pneumatic valve 164 is connected to the outlet of the second air intake throttle valve 163. The R port of the second, two-position, three-way manual pneumatic valve 164 is connected to the second exhaust silencer connector 169. The A port of the second, two-position, three-way manual pneumatic valve 164 is connected to the first air cylinder 52. The P port of the second, three-position, four-way manual pneumatic valve 165 is connected to the air source. The R port of the second, three-position, four-way manual pneumatic valve 165 is connected to the third exhaust silencer connector 1610. The inlet ports of third and fourth air intake throttle valves 166 and 167 are connected to ports A and B of second, three-position, four-way manual pneumatic valve 165, respectively. The outlet ports of third and fourth air intake throttle valves 166 and 167 are connected to the rodless and rod-operated chambers, respectively. First, second, and third exhaust silencer connectors 168, 169, and 1610 function as exhaust silencers, reducing noise during system operation.

[0058] To facilitate understanding of the working principle of the control device 160, its detailed working process is as follows:

[0059] 1. Push the control handle of the first three-position four-way manual air control valve to work in the left position. The P port of the first three-position four-way manual air control valve is connected to the A port, and the B port is connected to the R port, and the air motor in the telescopic rod 20 is supplied with air to realize forward rotation, and the telescopic unit 24 is extended step by step. Conversely, the first three-position four-way manual air control valve works in the right position. The P port of the first three-position four-way manual air control valve is connected to the B port, and the A port is connected to the R port, and the air motor in the telescopic rod 20 is reversed to realize step-by-step retraction. When the control handle of the first three-position four-way manual air control valve is in the middle position, the air supply to the P port of the first three-position four-way manual air control valve stops, the A and B ports are connected to the R port, and the telescopic rod 20 stops moving.

[0060] 2. Push the operating handle of the two-position three-way manual air control valve to work in the left position. The P port of the two-position three-way manual air control valve is connected to the A port, allowing air to enter the first cylinder 52 and the piston to extend, realizing the braking function. When the operating handle of the two-position three-way manual air control valve is restored to the right position, the air supply to the P port of the two-position three-way manual air control valve is stopped, and the A port is connected to the R port. The first cylinder 52 is exhausted under the action of the internal spring, the piston retracts, and the braking function is released.

[0061] 3. Push the operating handle of the second, third, and fourth-way manual pneumatic valve 165 to operate in the left position. The P port of the second, third, and fourth-way manual pneumatic valve 165 is connected to the A port, and the B port is connected to the R port. Air enters the rodless chamber of the second cylinder 63, and the piston extends. Conversely, the second, third, and fourth-way manual pneumatic valve operates in the right position. The P port of the second, third, and fourth-way manual pneumatic valve 165 is connected to the B port, and the A port is connected to the R port. Air enters the rod chamber of the second cylinder 63, and the piston rod retracts.

[0062] 4. The first air intake throttle valve 161 , the second air intake throttle valve 163 , the third air intake throttle valve 166 and the fourth air intake throttle valve 167 can realize the movement speed of the telescopic rod 20 , the first cylinder 52 and the second cylinder 63 .

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0065] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0068] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A dust removal device, characterized in that: The dust removal device comprises: A suspension rod (10) is connected to the anchor rod (1) on the tunnel roof, and the suspension rod (10) is provided with a slot; a telescopic rod (20), the telescopic rod (20) having a telescopic end (21) and a fixed end (22) arranged opposite to each other, the fixed end (22) being movably connected to the suspension rod (10), the telescopic rod (20) being movable along the length direction of the suspension rod (10), and the telescopic end (21) having an initial state and an extended state arranged opposite to each other; a first telescopic air duct (30), the first telescopic air duct (30) being used for dust removal, the telescopic end (21) being drivingly connected to the first telescopic air duct (30), and the telescopic end (21) being capable of driving the first telescopic air duct (30) to telescope when the telescopic end (21) switches between the initial state and the extended state; a first sliding device (40), the first sliding device (40) having a first end and a second end arranged opposite to each other, the first end of the first sliding device (40) being movably arranged in the slot, the second end of the first sliding device (40) being connected to the fixed end (22), and the fixed end (22) being movable relative to the boom (10) via the first sliding device (40); a braking device (50) disposed between the fixed end (22) and the boom (10), the braking device (50) having a relatively arranged moving state and a braking state, and when the braking device (50) is in the braking state, it can restrict the fixed end (22) from moving relative to the boom (10); The telescopic rod (20) comprises a telescopic main rod (23) and a plurality of telescopic units (24) connected in sequence, a second sliding device (80) and a fixing member (90) are provided between the telescopic unit (24) and the first telescopic air tube (30), a plurality of hanging rings (31) are provided on a side of the first telescopic air tube (30) close to the telescopic rod (20), one end of the second sliding device (80) is sleeved in the telescopic unit (24), and the other end of the second sliding device (80) is connected to some of the hanging rings (31); one end of the fixing member (90) is fixed to the end of the telescopic unit (24), and the other end of the fixing member (90) is connected to the remaining hanging rings (31); The second sliding device (80) comprises: A bracket (81), the bracket (81) having a third accommodating hole (811), the telescopic unit (24) being inserted into the third accommodating hole (811); A first roller (82) and a second roller (83) are arranged on the bracket (81); the telescopic unit (24) is arranged between the first roller (82) and the second roller (83); the first roller (82) and the second roller (83) are capable of rotating relative to the telescopic unit (24); the first roller (82) is located above the telescopic unit (24); and the second roller (83) is located below the telescopic unit (24); A second connecting ear plate (84) is provided on a side of the bracket (81) close to the first telescopic air cylinder (30); A third spring buckle (85) is provided on the second connecting ear plate (84), and the third spring buckle (85) is connected to the hanging ring (31).

2. The dust removal device according to claim 1, characterized in that: The braking device (50) comprises: A brake body (51), the brake body (51) having a first accommodating hole (511), the fixed end (22) being inserted into the first accommodating hole (511); A first cylinder (52) is provided on a side of the brake body (51) close to the suspension rod (10); A friction block (53) is provided on the piston of the first cylinder (52), and the piston can drive the friction block (53) to move toward abutting the suspension rod (10) or away from the suspension rod (10). When the friction block (53) contacts the suspension rod (10), the braking device (50) is in the braking state.

3. The dust removal device according to claim 2, characterized in that: The first telescopic air cylinder (30) has an inlet and an outlet arranged opposite to each other, and the dust removal device further comprises: A support device (60) is provided at the inlet of the first telescopic air cylinder (30), the support device (60) having a first end and a second end that are arranged opposite to each other, the first end of the support device (60) being connected to the telescopic rod (20), and the second end of the support device (60) being used for supporting the bottom of the tunnel; A fixed air duct (70) having an inlet and an outlet arranged opposite to each other, the inlet of the fixed air duct (70) being connected to the outlet of the first telescopic air duct (30), a lifting lug (71) being provided on a side of the fixed air duct (70) close to the telescopic rod (20), and the first sliding device (40) being connected to the lifting lug (71).

4. The dust removal device according to claim 3, characterized in that: The supporting device (60) comprises: The support frame (61) has a connecting hole (611) and a fixing hole (612), wherein the connecting hole (611) is sleeved on the telescopic end (21), and the fixing hole (612) is sleeved on the outside of the first telescopic air duct (30), and the structure of the fixing hole (612) is compatible with the structure of the first telescopic air duct (30); A first spring buckle (62) is provided on a side of the support frame (61) away from the connection hole (611), and the first spring buckle (62) is connected to the first telescopic air cylinder (30); A second cylinder (63) is provided at the bottom of the support frame (61), and one end of the second cylinder (63) is connected to the support frame (61); A support base (64), the other end of the second cylinder (63) is connected to the support base (64), and the second cylinder (63) is capable of adjusting the distance between the support frame (61) and the support base (64).

5. The dust removal device according to claim 3, characterized in that: The first sliding device (40) comprises: A sliding body (41), the sliding body (41) having a second accommodating hole (411), the fixed end (22) being inserted into the second accommodating hole (411); a pulley (42) disposed on a side of the sliding body (41) close to the suspension rod (10), the pulley (42) being movably disposed in the slot; A first connecting ear plate (43) is provided on a side of the sliding body (41) close to the fixed air cylinder (70); A second spring buckle (44) is provided on the first connecting ear plate (43), and the second spring buckle (44) is connected to the fixed air cylinder (70).

6. The dust removal device according to claim 3, characterized in that: The dust removal device also includes: a second telescopic air duct (100), the second telescopic air duct (100) being coaxially arranged with the fixed air duct (70), the second telescopic air duct (100) having an inlet and an outlet arranged opposite to each other, the inlet of the second telescopic air duct (100) being connected to the outlet of the fixed air duct (70); A transition air duct (110), the transition air duct (110) comprising a first horizontal section, an inclined section, and a second horizontal section connected in sequence, the first horizontal section being coaxially arranged and connected to an outlet of the second telescopic air duct (100); A third telescopic air duct (120) is movably connected to the suspension rod (10), and the third telescopic air duct (120) has an inlet and an outlet that are relatively arranged, and the inlet of the third telescopic air duct (120) is coaxially arranged and connected to the second horizontal section.

7. The dust removal device according to claim 6, characterized in that: The dust removal device also includes: a dry dust collector (130), wherein the inlet of the dry dust collector (130) is connected to the outlet of the third telescopic air cylinder (120); an axial flow fan (140), the axial flow fan (140) being connected to an outlet of the dry dust collector (130); A translation member (150), the dry dust collector (130) and the axial flow fan (140) are fixedly arranged on the translation member (150), and the translation member (150) can drive the dry dust collector (130) and the axial flow fan (140) to move.

8. The dust removal device according to claim 4, characterized in that: The dust removal device further comprises a control device (160), wherein the control device (160) is connected to the braking device (50) and the telescopic rod (20) respectively, and the control device (160) is capable of controlling the telescopic rod (20) to switch between the initial state and the extended state, and the control device (160) is capable of controlling the braking device (50) to switch between the braking state and the moving state.

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