Mining axial flow fan

Abstract

The invention discloses a mining axial flow fan, and relates to the technical field of axial flow fans, the mining axial flow fan comprises a shell and a base, the shell is located above the base, the two ends of the shell are fixedly connected with protective covers, and the mining axial flow fan further comprises a mounting mechanism, an adjusting mechanism and a supporting mechanism. By arranging the adjusting mechanism and the supporting mechanism, an inserting rod is rotated to adjust the angle of the shell, after adjustment is completed, a rotating column is rotated, a clamping block moves to make contact with a first straight gear to be clamped, and the angle of the shell is fixed; when a base is placed on the ground, a connecting column is rotated, the bottom end of a supporting rod makes contact with a concave position of the ground, the bottom end of the base is supported, and when a clamping block moves, the clamping block moves to drive a positioning frame to make contact with a second straight gear to be clamped, the supporting rod is fixed, and the angle of the axial flow fan is conveniently adjusted; and meanwhile, the bottom end of the base is supported through the supporting rod, and the axial flow fan is prevented from inclining due to the uneven ground.

Description

Technical Field

[0001] The invention relates to the technical field of axial flow fans, in particular to an axial flow fan for mining. Background Art

[0002] In the process of coal mining, axial flow fans are needed. Axial flow fans use the thrust of blades to force the gas to flow axially. They are usually composed of collectors, impellers, casings and shafts. Large axial flow fans are also equipped with fairings, guide vanes (referred to as "guide vanes", including front guide vanes and rear guide vanes), tail guides and diffusers. When the prime mover drives the impeller to rotate in the casing, a certain installation angle between the shaft and the propeller-shaped blades produces thrust on the gas, pushing the gas to flow continuously along the shaft direction, so that the gas is continuously inhaled and discharged.

[0003] However, when the axial flow fan is used, it is installed on the bracket by bolts, which results in a fixed blowing angle of the axial flow fan, which is inconvenient to adjust. At the same time, due to the uneven ground in the coal mine, the bottom of the axial flow fan is prone to lack of support and tipping over. In order to facilitate the installation and positioning of the axial flow fan, a mining axial flow fan is provided. Summary of the invention

[0004] The purpose of the present invention is to provide an axial flow fan for mining in order to facilitate the installation and positioning of the axial flow fan.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mining axial flow fan, comprising a shell and a base, the shell is located above the base, two ends of the shell are fixedly connected with protective covers, the inner cavity of the shell is provided with fan blades, one end of the fan blades is fixedly connected with a connecting shaft, the top of the shell is fixedly connected with a mounting seat extending to the inner cavity of the shell, the top of the shell is located on one side of the mounting seat and a driving motor is installed, the output end of the driving motor is connected with a first synchronous wheel, the first synchronous wheel is located in the inner cavity of the mounting seat, the connecting shaft is rotatably connected with the mounting seat, the outer wall of the connecting shaft is fixedly connected with a second synchronous wheel, a synchronous belt is connected between the first synchronous wheel and the second synchronous wheel, the shell is installed above the base through a mounting mechanism, the angle of the shell is adjusted by an adjusting mechanism, and the bottom end of the base is supported by a supporting mechanism; The mounting mechanism includes a connecting seat, which is fixedly connected to the outer walls of both sides of the shell, and the outer wall of the connecting seat is provided with a slot, and an insertion rod is arranged above the base, and the outer wall of the insertion rod is symmetrically fixedly connected with a fixing block, and the inside of the insertion rod is symmetrically slidably connected with a slider extending to the outer wall of the insertion rod, one end of the slider is rotatably connected with a connecting rod, and one end of the connecting rod is rotatably connected with a displacement block, and the displacement block is slidably connected to the inside of the insertion rod, and the inside of the insertion rod is rotatably connected with a first threaded rod that penetrates the displacement block, and the top of the first threaded rod is fixedly connected with a rotating block.

[0006] As a further solution of the present invention: the adjusting mechanism includes a first spur gear, which is fixedly connected to the bottom end of the insertion rod, a groove is provided at the top of the base, the first spur gear is rotatably connected to the inner wall of the groove, a block is slidably connected to the interior of the base below the first spur gear, a second threaded rod extending to the interior of the block is rotatably connected to the interior of the base, the bottom end of the second threaded rod is fixedly connected to the first bevel gear, the interior of the base is located at the outer wall of the first bevel gear and is rotatably connected to the second bevel gear, and one end of the second bevel gear is fixedly connected to a rotating column located on the outer wall of the base.

[0007] As a further solution of the present invention: the supporting mechanism includes a movable groove, which is opened at the bottom end of the base, and the inner wall of the movable groove is slidably connected to a support rod, the inner part of the base is located on the outer wall of the support rod and is rotatably connected to a second spur gear, one end of the second spur gear is fixedly connected to a connecting column located on the outer wall of the base, the inner part of the base is located on the outer wall of the block and is rotatably connected to a third spur gear, and the inner part of the base is located on the outer wall of the third spur gear and is slidably connected to a positioning frame.

[0008] As a further solution of the present invention: the inner wall of the slot is in contact with the outer wall of the insertion rod, and both ends of the connecting rod are connected to the sliding block and the displacement block through a rotating shaft.

[0009] As a further solution of the present invention: a first threaded hole is formed at the top of the displacement block, and the first threaded hole matches the first threaded rod.

[0010] As a further solution of the present invention: a mounting shaft is fixedly connected to the axial center position of the outer wall of the first spur gear, and the mounting shaft is rotatably connected to the groove.

[0011] As a further solution of the present invention: the top end of the clamping block is engaged with the outer wall of the first spur gear, and the first bevel gear is meshed with the second bevel gear.

[0012] As a further solution of the present invention: a second threaded hole is formed at the bottom end of the clamping block, and the second threaded hole matches the second threaded rod.

[0013] As a further solution of the present invention: the outer walls of the clamping block and the positioning frame are both provided with tooth grooves, and the tooth grooves are meshed with the third spur gear.

[0014] As a further solution of the present invention: the bottom end of the positioning frame extends to the top of the second spur gear, and the bottom end of the positioning frame is engaged with the outer wall of the second spur gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting an adjustment mechanism and a supporting mechanism, the insertion rod is rotated to adjust the angle of the shell. After completion, the rotating column is rotated, the block is displaced and contacts and engages with the first spur gear to fix the angle of the shell; when the base is placed on the ground, the connecting column is rotated, the bottom end of the support rod contacts the recessed part of the ground to support the bottom end of the base, and when the block moves, the block displacement drives the positioning frame displacement and contacts and engages with the second spur gear to fix the support rod, which is convenient for adjusting the angle of the axial flow fan. At the same time, the bottom end of the base is supported by the support rod to prevent the axial flow fan from tilting due to uneven ground.

[0016] By setting up the installation mechanism, the insertion rod is inserted into the slot until the bottom end of the connecting seat contacts the top end of the fixed block, and the rotating block is rotated. The rotation of the rotating block drives the first threaded rod to rotate, and the rotation of the first threaded rod drives the displacement block to move. The displacement of the displacement block drives the slider to move through the connecting rod. The slider moves out of the insertion rod and contacts the top end of the connecting seat, thereby fixing the connecting seat and the insertion rod, which is convenient for installing the axial flow fan on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the housing of the present invention; Figure 3 It is a schematic diagram of the installation of the housing of the present invention; Figure 4 is a cross-sectional view of the plunger of the present invention; Figure 5 A partial cross-sectional view of a base of the present invention; Figure 6 It is a schematic diagram of the installation of the support rod of the present invention; Figure 7 It is a schematic structural diagram of the support rod of the present invention.

[0018] In the figure: 1. shell; 2. base; 3. protective cover; 4. fan blade; 5. installation mechanism; 501. connecting seat; 502. slot; 503. plug rod; 504. fixed block; 505. slider; 506. connecting rod; 507. displacement block; 508. first threaded rod; 509. rotating block; 6. adjustment mechanism; 601. first spur gear; 602. groove; 603. block; 604. second threaded rod; 605. first bevel gear; 606. second bevel gear; 607. rotating column; 7. supporting mechanism; 701. movable slot; 702. supporting rod; 703. second spur gear; 704. connecting column; 705. third spur gear; 706. positioning frame; 8. mounting seat; 9. driving motor; 10. first synchronous wheel; 11. connecting shaft; 12. second synchronous wheel; 13. synchronous belt. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0021] See also Figures 1 to 7In an embodiment of the present invention, a mining axial flow fan includes a shell 1 and a base 2, the shell 1 is located above the base 2, and both ends of the shell 1 are fixedly connected with a protective cover 3. The inner cavity of the shell 1 is provided with a fan blade 4, and one end of the fan blade 4 is fixedly connected with a connecting shaft 11. The top of the shell 1 is fixedly connected with a mounting seat 8 extending to the inner cavity of the shell 1, and the top of the shell 1 is located on one side of the mounting seat 8. A driving motor 9 is installed, and the output end of the driving motor 9 is connected with a first synchronous wheel 10, and the first synchronous wheel 10 is located in the inner cavity of the mounting seat 8. The connecting shaft 11 is rotatably connected to the mounting seat 8, and the outer wall of the connecting shaft 11 is fixedly connected with a second synchronous wheel 12, and a synchronous belt 13 is connected between the first synchronous wheel 10 and the second synchronous wheel 12. The shell 1 is installed above the base 2 through a mounting mechanism 5, and the angle of the shell 1 is adjusted by an adjusting mechanism 6. The bottom end of the base 2 is supported by a supporting mechanism 7.

[0022] In this embodiment: the drive motor 9 is started, and the drive motor 9 drives the first synchronous wheel 10 to rotate. The first synchronous wheel 10 rotates to drive the second synchronous wheel 12 to rotate through the synchronous belt 13. The second synchronous wheel 12 rotates to drive the connecting shaft 11 to rotate. The connecting shaft 11 rotates to drive the fan blades 4 to rotate, and the blowing operation is performed. The protective cover 3 is mounted on the outer shell 1 by bolts.

[0023] Please refer to Figure 3 to Figure 4 The mounting mechanism 5 includes a connecting seat 501, which is fixedly connected to the outer walls of both sides of the shell 1. A slot 502 is opened on the outer wall of the connecting seat 501. An insertion rod 503 is arranged above the base 2. The outer wall of the insertion rod 503 is symmetrically fixedly connected with a fixing block 504. The inside of the insertion rod 503 is symmetrically slidably connected with a slider 505 extending to the outer wall of the insertion rod 503. One end of the slider 505 is rotatably connected with a connecting rod 506. One end of the connecting rod 506 is rotatably connected with a displacement block 507. The displacement block 507 is slidably connected to the inside of the insertion rod 503. The inside of the insertion rod 503 is rotatably connected with a first threaded rod 508 that runs through the displacement block 507. The top of the first threaded rod 508 is fixedly connected with a rotating block 509.

[0024] In this embodiment: when installing the shell 1, the insertion rod 503 is inserted into the slot 502 until the bottom end of the connecting seat 501 contacts the top end of the fixed block 504, and the rotating block 509 is rotated. The rotating block 509 rotates to drive the first threaded rod 508 to rotate, and the first threaded rod 508 rotates to drive the displacement block 507 to move. The displacement of the displacement block 507 drives the slider 505 to move through the connecting rod 506. The slider 505 moves out of the insertion rod 503 and contacts the top end of the connecting seat 501, thereby fixing the connecting seat 501 and the insertion rod 503 to be connected, and then completing the installation of the shell 1.

[0025] Please refer to Figures 4 to 5The adjusting mechanism 6 includes a first spur gear 601, which is fixedly connected to the bottom end of the insertion rod 503. A groove 602 is provided at the top of the base 2. The first spur gear 601 is rotatably connected to the inner wall of the groove 602. A block 603 is slidably connected to the interior of the base 2 below the first spur gear 601. A second threaded rod 604 extending to the interior of the block 603 is rotatably connected to the interior of the base 2. The bottom end of the second threaded rod 604 is fixedly connected to a first bevel gear 605. A second bevel gear 606 is rotatably connected to the outer wall of the first bevel gear 605 inside the base 2. One end of the second bevel gear 606 is fixedly connected to a rotating column 607 located on the outer wall of the base 2.

[0026] In this embodiment: when adjusting the angle of the shell 1, the insert rod 503 is rotated, and the insert rod 503 is rotated to adjust the angle of the shell 1. At this time, the first spur gear 601 rotates in the groove 602. After completion, the rotating column 607 is rotated, and the rotating column 607 rotates to drive the second bevel gear 606 to rotate, and the second bevel gear 606 rotates to drive the first bevel gear 605 to rotate, and the first bevel gear 605 rotates to drive the second threaded rod 604 to rotate, and the second threaded rod 604 rotates to drive the block 603 to move, and the block 603 moves and contacts with the first spur gear 601 to engage, fix the first spur gear 601, and then fix the angle of the shell 1.

[0027] Please refer to Figure 6 to Figure 7 The supporting mechanism 7 includes a movable groove 701, which is opened at the bottom end of the base 2. The inner wall of the movable groove 701 is slidably connected to the support rod 702. The inner wall of the base 2 is located at the outer wall of the support rod 702 and is rotatably connected to the second spur gear 703. One end of the second spur gear 703 is fixedly connected to a connecting column 704 located on the outer wall of the base 2. The inner wall of the base 2 is located at the outer wall of the block 603 and is rotatably connected to the third spur gear 705. The inner wall of the base 2 is located at the outer wall of the third spur gear 705 and is slidably connected to the positioning frame 706.

[0028] In this embodiment: when the base 2 is placed on the ground, the movable groove 701 is provided with four corners located at the bottom end of the base 2. When the bottom end of the base 2 is uneven, the connecting column 704 can be rotated, and the connecting column 704 rotates to drive the second spur gear 703 to rotate, and the second spur gear 703 rotates to drive the support rod 702 to slide in the movable groove 701, and the support rod 702 slides out of the base 2, and the bottom end of the support rod 702 contacts the concave part of the ground to support the bottom end of the base 2. When the block 603 moves and contacts the first spur gear 601, the block 603 is displaced to drive the third spur gear 705 to rotate, and the third spur gear 705 rotates to drive the positioning frame 706 to displace, and the positioning frame 706 is displaced to contact and engage with the second spur gear 703, thereby fixing the second spur gear 703, and then fixing the support rod 702. The bottom end of the base 2 is supported by the support rod 702 to prevent the axial flow fan from tilting due to the uneven ground.

[0029] Please refer to Figure 3 to Figure 4 The inner wall of the slot 502 fits with the outer wall of the insertion rod 503, and both ends of the connecting rod 506 are connected to the slider 505 and the displacement block 507 through a rotating shaft. A first threaded hole is opened at the top of the displacement block 507, and the first threaded hole matches the first threaded rod 508.

[0030] In this embodiment: the insertion rod 503 is inserted into the slot 502 until the bottom end of the connecting seat 501 contacts the top end of the fixed block 504, and the rotating block 509 is rotated. The rotating block 509 rotates to drive the first threaded rod 508 to rotate, and the first threaded rod 508 rotates to drive the displacement block 507 to move. The displacement of the displacement block 507 drives the slider 505 to move through the connecting rod 506. The slider 505 moves out of the insertion rod 503 and contacts the top end of the connecting seat 501, thereby fixing the connecting seat 501 and the insertion rod 503.

[0031] Please refer to Figures 4 to 5 A mounting shaft is fixedly connected to the axial center position of the outer wall of the first spur gear 601 , and the mounting shaft is rotatably connected to the groove 602 .

[0032] In this embodiment, the insert rod 503 is rotated to adjust the angle of the housing 1 , and at this time, the first spur gear 601 rotates in the groove 602 .

[0033] Please refer to Figures 4 to 5 The top of the block 603 is engaged with the outer wall of the first spur gear 601 , the first bevel gear 605 is meshed with the second bevel gear 606 , and a second threaded hole is formed at the bottom of the block 603 , which matches the second threaded rod 604 .

[0034] In this embodiment: rotate the rotating column 607, the rotating column 607 drives the second bevel gear 606 to rotate, the second bevel gear 606 drives the first bevel gear 605 to rotate, the first bevel gear 605 drives the second threaded rod 604 to rotate, the second threaded rod 604 drives the clamping block 603 to move, the clamping block 603 moves and contacts and engages with the first spur gear 601, thereby fixing the first spur gear 601.

[0035] Please refer to Figure 6 to Figure 7 The outer walls of the block 603 and the positioning frame 706 are both provided with tooth grooves, which mesh with the third spur gear 705. The bottom end of the positioning frame 706 extends to the top of the second spur gear 703, and the bottom end of the positioning frame 706 is engaged with the outer wall of the second spur gear 703.

[0036] In this embodiment: the connecting column 704 is rotated, and the connecting column 704 rotates to drive the second spur gear 703 to rotate. The second spur gear 703 rotates to drive the support rod 702 to slide in the movable groove 701. The support rod 702 slides out of the base 2, and the bottom end of the support rod 702 contacts the recessed part of the ground to support the bottom end of the base 2. When the block 603 moves and contacts the first spur gear 601, the block 603 is displaced to drive the third spur gear 705 to rotate. The third spur gear 705 rotates to drive the positioning frame 706 to displace. The positioning frame 706 is displaced to contact and engage with the second spur gear 703, thereby fixing the second spur gear 703 and then fixing the support rod 702.

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mining axial flow fan, comprising a housing (1) and a base (2), wherein the housing (1) is located above the base (2), and is characterized in that: The two ends of the shell (1) are fixedly connected with protective covers (3); the inner cavity of the shell (1) is provided with fan blades (4); one end of the fan blades (4) is fixedly connected with a connecting shaft (11); the top of the shell (1) is fixedly connected with a mounting seat (8) extending into the inner cavity of the shell (1); the top of the shell (1) is located on one side of the mounting seat (8) and is provided with a driving motor (9); the output end of the driving motor (9) is connected with a first synchronous wheel (10); the first synchronous wheel (10) is located in the inner cavity of the mounting seat (8); the connecting shaft (11) is rotatably connected with the mounting seat (8); the outer wall of the connecting shaft (11) is fixedly connected with a second synchronous wheel (12); a synchronous belt (13) is connected between the first synchronous wheel (10) and the second synchronous wheel (12); the shell (1) is mounted above the base (2) through a mounting mechanism (5); the angle of the shell (1) is adjusted through an adjusting mechanism (6); and the bottom end of the base (2) is supported by a supporting mechanism (7); The mounting mechanism (5) comprises a connecting seat (501), wherein the connecting seat (501) is fixedly connected to the outer walls of both sides of the housing (1), and a slot (502) is provided on the outer wall of the connecting seat (501); an insertion rod (503) is arranged above the base (2); a fixing block (504) is symmetrically fixedly connected to the outer wall of the insertion rod (503); a slider (505) extending to the outer wall of the insertion rod (503) is symmetrically slidably connected inside the insertion rod (503); a connecting rod (506) is rotatably connected to one end of the slider (505); a displacement block (507) is rotatably connected to one end of the connecting rod (506); the displacement block (507) is slidably connected to the inside of the insertion rod (503); a first threaded rod (508) penetrating the displacement block (507) is rotatably connected inside the insertion rod (503); a rotating block (509) is fixedly connected to the top of the first threaded rod (508).

2. A mining axial flow fan according to claim 1, characterized in that: The adjusting mechanism (6) comprises a first spur gear (601), the first spur gear (601) being fixedly connected to the bottom end of the insertion rod (503), a groove (602) being provided at the top end of the base (2), the first spur gear (601) being rotatably connected to the inner wall of the groove (602), a clamping block (603) being slidably connected to the interior of the base (2) below the first spur gear (601), a second threaded rod (604) extending to the interior of the clamping block (603) being rotatably connected to the interior of the base (2), a first bevel gear (605) being fixedly connected to the bottom end of the second threaded rod (604), a second bevel gear (606) being rotatably connected to the outer wall of the first bevel gear (605) being located inside the base (2), and one end of the second bevel gear (606) being fixedly connected to a rotating column (607) located on the outer wall of the base (2).

3. A mining axial flow fan according to claim 2, characterized in that: The support mechanism (7) comprises a movable groove (701), wherein the movable groove (701) is provided at the bottom end of the base (2), the inner wall of the movable groove (701) is slidably connected to a support rod (702), the inner wall of the base (2) is located on the outer wall of the support rod (702) and is rotatably connected to a second spur gear (703), one end of the second spur gear (703) is fixedly connected to a connecting column (704) located on the outer wall of the base (2), the inner wall of the base (2) is located on the outer wall of the clamping block (603) and is rotatably connected to a third spur gear (705), and the inner wall of the base (2) is located on the outer wall of the third spur gear (705) and is slidably connected to a positioning frame (706).

4. A mining axial flow fan according to claim 1, characterized in that: The inner wall of the slot (502) fits in with the outer wall of the insertion rod (503), and both ends of the connecting rod (506) are connected to the sliding block (505) and the displacement block (507) via a rotating shaft.

5. The axial flow fan for mining according to claim 1, characterized in that: A first threaded hole is formed at the top of the displacement block (507), and the first threaded hole matches the first threaded rod (508).

6. A mining axial flow fan according to claim 2, characterized in that: A mounting shaft is fixedly connected at the axial center position of the outer wall of the first spur gear (601), and the mounting shaft is rotatably connected to the groove (602).

7. A mining axial flow fan according to claim 2, characterized in that: The top end of the clamping block (603) is engaged with the outer wall of the first spur gear (601), and the first bevel gear (605) is meshed with the second bevel gear (606).

8. The mining axial flow fan according to claim 2, characterized in that: A second threaded hole is formed at the bottom end of the clamping block (603), and the second threaded hole matches the second threaded rod (604).

9. The axial flow fan for mining according to claim 3, characterized in that: The outer walls of the clamping block (603) and the positioning frame (706) are both provided with tooth grooves, and the tooth grooves are meshed with the third spur gear (705).

10. The mining axial flow fan according to claim 3, characterized in that: The bottom end of the positioning frame (706) extends to the top of the second spur gear (703), and the bottom end of the positioning frame (706) is engaged with the outer wall of the second spur gear (703).

Images