Circulating fan with bottom-mounted structure

Abstract

A circulating fan with a bottom-mounted structure relates to the technical field of industrial equipment and is characterized in that a fixed rail is fixedly arranged on the left side of a furnace body, a sliding seat is arranged on the fixed rail in a sliding manner, a support frame is fixedly arranged on the sliding seat, a lifting block is movably arranged in a lifting groove formed in the support frame, and a connecting frame is fixedly arranged on the lifting block; the connecting frame is fixedly arranged on the left side of the mounting base, a synchronous locking mechanism connected with the fixed base is arranged in the mounting base, the adjusting motor is fixedly arranged in the supporting frame, a threaded rod is rotationally arranged in the lifting groove through a bearing, and the threaded rod is rotationally sleeved with the lifting block through threads. And a convenient control mechanism connected with the synchronous locking mechanism is arranged on the supporting frame, so that the fan main body driving structure component can be conveniently disassembled and assembled on the furnace body, high-altitude maintenance can be converted into ground operation, and certain safety can be improved while the convenience of maintenance work is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment technology, specifically to a bottom-mounted circulating fan. Background Technology

[0002] In high-temperature industrial fields such as metal heat treatment and ceramic sintering, the top-mounted circulating fan of the solution furnace is the core equipment to ensure the uniformity of temperature inside the furnace. The drive unit (motor, bearing housing) and coupling of the traditional circulating fan are all located on the top of the furnace (usually 6-12 meters above the ground). Maintenance requires the use of high-altitude work platforms or scaffolding, which not only makes the maintenance of the circulating fan more dangerous, but also makes it difficult to disassemble and assemble the motor and other drive components of the circulating fan on the solution furnace. Therefore, there is an urgent need for a bottom-mounted circulating fan. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed bottom-mounted circulating fan to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a fixed base, an mounting base, a drive motor, a connecting shaft, and fan blades. The fixed base is fixedly installed on the upper part of the furnace body, and the mounting base is provided on the upper part of the fixed base. The drive motor is fixedly installed on the mounting base. The connecting shaft is rotatably passed through the fixed base via a bearing. The output shaft of the drive motor is connected to the connecting shaft, and the lower end of the connecting shaft is fixedly installed with fan blades.

[0005] It also includes:

[0006] A fixed rail is fixedly installed on the left side of the furnace body. A sliding seat is slidably installed on the fixed rail. A support frame is fixedly installed on the sliding seat. A lifting block is movably installed in the lifting groove opened on the support frame.

[0007] A connecting frame is fixedly mounted on the lifting block and fixedly mounted on the left side of the mounting base. The mounting base is provided with a synchronous locking mechanism that is connected to the fixed base.

[0008] An adjusting motor is fixedly installed inside a support frame. A threaded rod is rotatably installed in the lifting groove via a bearing. The lifting block is sleeved on the threaded rod via a threaded rotation. The support frame is equipped with a convenient control mechanism connected to a synchronous locking mechanism.

[0009] Furthermore, the synchronous locking mechanism includes:

[0010] An internal gear ring is rotatably mounted in a mounting base via a bearing. Several spur gears with equal fillet angles mesh inside the internal gear ring, and the spur gears are rotatably mounted in the mounting base via a thrust ball bearing.

[0011] The locking bolts, which are several in number, are inserted into the mounting base with equal rounded corners. The lower end of the locking bolt is inserted into the fixed base by a thread. The spur gear is movably sleeved on the locking bolt. Each of the several slots with equal rounded corners on the locking bolt has a movable block, and the movable block is fixedly connected to the spur gear.

[0012] Furthermore, the convenient control mechanism includes:

[0013] An adjusting rod is inserted into the front side of the support frame via a bearing. A driving rod is rotatably installed in the lifting groove via a bearing. One end of the adjusting rod is fixedly fitted with a first bevel gear, and the lower end of the driving rod is fixedly fitted with a second bevel gear that meshes with the first bevel gear.

[0014] The worm gear is rotatably mounted on the connecting frame via a bearing and is movably sleeved on the drive rod. A crossbar is rotatably inserted into the connecting frame via a bearing, and a worm wheel is fixedly sleeved on one end of the crossbar, with the worm wheel meshing with the worm gear.

[0015] The No. 3 bevel gear is fixedly sleeved on the other end of the crossbar, and a bevel gear ring is fixedly sleeved on the internal gear ring. The No. 3 bevel gear and the bevel gear ring are meshed together.

[0016] Furthermore, limit blocks are fixedly installed at both ends of the fixed rail, and the sliding seat is configured to abut against the limit blocks.

[0017] Furthermore, a limiting rod is movably inserted through the sliding seat, and two limiting grooves that cooperate with the limiting rod are opened on the fixed rail. A connecting ring is fixedly sleeved on the limiting rod, and the connecting ring is movably disposed in a cylindrical groove opened in the sliding seat. A spring is movably sleeved on the limiting rod, and the upper and lower ends of the spring are respectively connected to the top wall of the cylindrical groove and the connecting ring.

[0018] Furthermore, positioning blocks are fixedly provided on both the left and right sides of the connecting ring. The positioning blocks are movably disposed in the positioning grooves opened on the inner wall of the cylindrical groove. The positioning grooves are configured with an inverted "L" shape. The lower end of the spring is rotatably connected to the connecting ring through a thrust ball bearing.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the bottom-mounted circulating fan described in this utility model can not only realize the convenient disassembly and assembly of the main drive structure components of the fan on the furnace body, but also transform high-altitude maintenance into ground operation, improving the convenience of maintenance work while also improving a certain degree of safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2This is an exploded view of the fixed base, mounting base, drive motor, connecting shaft, fan blades, and synchronous locking mechanism in this utility model.

[0022] Figure 3 This is a cross-sectional view of the support frame in this utility model.

[0023] Figure 4 yes Figure 3 Enlarged view of part A in the image.

[0024] Figure 5 yes Figure 3 Enlarged view of part B in the image.

[0025] Figure 6 This is an exploded view of the sliding seat, limiting rod, spring, positioning block, and connecting ring in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Fixed base; 2. Mounting base; 3. Drive motor; 4. Connecting shaft; 5. Fan blades; 6. Fixed rail; 7. Sliding seat; 8. Support frame; 9. Lifting groove; 10. Lifting block; 11. Connecting frame; 12. Synchronous locking mechanism; 12-1. Internal gear ring; 12-2. Spur gear; 12-3. Locking bolt; 12-4. Movable block; 13. Adjusting motor; 14. Threaded rod; 15. Convenient control mechanism; 15-1. Adjusting rod; 15-2. First bevel gear; 15-3. Second bevel gear; 15-4. Worm gear; 15-5. Crossbar; 15-6. Worm wheel; 15-7. Third bevel gear; 15-8. Bevel gear ring; 15-9. Limiting block; 16. Limiting rod; 17. Spring; 18. Positioning block; 19. Positioning groove; 20. Limiting groove; 21. Connecting ring; 22. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figures 1-6 As shown, the specific embodiment adopts the following technical solution: it includes a fixed base 1, a mounting base 2, a drive motor 3, a connecting shaft 4, and a fan blade 5. The fixed base 1 is fixedly installed on the upper part of the furnace body. The mounting base 2 is provided on the upper part of the fixed base 1. The drive motor 3 is fixedly installed on the mounting base 2. The connecting shaft 4 is rotatably passed through the fixed base 1 through a bearing. The output shaft of the drive motor 3 is connected to the connecting shaft 4. The fan blade 5 is fixedly installed at the lower end of the connecting shaft 4.

[0030] It also includes:

[0031] A fixed rail 6 is fixedly installed on the left side of the furnace body. A sliding seat 7 is slidably mounted on the fixed rail 6, and a support frame 8 is fixedly mounted on the sliding seat 7. A lifting block 10 is movably mounted in a lifting groove 9 on the support frame 8. Limiting blocks 16 are fixedly mounted at both ends of the fixed rail 6. The sliding seat 7 and the limiting blocks 16 are engaged and abut against each other. The limiting blocks 16 can limit the left and right extreme positions of the sliding seat 7 on the fixed rail 6 to prevent the sliding seat 7 from slipping off the fixed rail 6. A limiting rod 17 is movably mounted on the sliding seat 7. Two limiting grooves 21 are opened on the fixed rail 6 to cooperate with the limiting rod 17. A connecting ring 22 is fixedly sleeved on the limiting rod 17. The connecting ring 22 is movably mounted in a cylindrical groove opened in the sliding seat 7. A spring 18 is movably sleeved on the limiting rod 17. The upper and lower ends of the spring 18 are respectively engaged with the cylindrical groove. The inner top wall and the connecting ring 22 are connected. The spring 18 can apply downward pressure to the limiting rod 17 through the connecting ring 22, so that the lower end of the limiting rod 17 is inserted into the limiting groove 21, thereby limiting the sliding seat 7 on the fixed rail 6. Positioning blocks 19 are fixedly provided on both the left and right sides of the connecting ring 22. The positioning blocks 19 are movably set in the positioning groove 20 opened on the inner wall of the cylindrical groove. The positioning groove 20 is set with an inverted "L" shaped structure. The lower end of the spring 18 is rotatably connected to the connecting ring 22 through a thrust ball bearing. After the limiting rod 17 is pulled upward and disengaged from the insertion of the limiting groove 21, the limiting rod 17 can be rotated. By utilizing the movement of the positioning block 19 in the positioning groove 20, the limiting rod 17 is limited in the height state, avoiding the need to continuously apply upward pulling force to the limiting rod 17 due to the influence of the spring 18 when moving the sliding seat 7.

[0032] A connecting frame 11 is fixedly mounted on the lifting block 10 and fixedly mounted on the left side of the mounting base 2. The mounting base 2 is provided with a synchronous locking mechanism 12 that is connected to the fixed base 1.

[0033] An adjusting motor 13 is fixedly installed inside the support frame 8. A threaded rod 14 is rotatably installed in the lifting groove 9 through a bearing. A lifting block 10 is sleeved on the threaded rod 14 through thread rotation. A convenient control mechanism 15 connected to the synchronous locking mechanism 12 is provided on the support frame 8.

[0034] The synchronous locking mechanism 12 includes:

[0035] An internal gear ring 12-1 is rotatably mounted in the mounting base 2 via a bearing. Several spur gears 12-2 are meshed with each other with equal rounded corners in the internal gear ring 12-1. The spur gears 12-2 are rotatably mounted in the mounting base 2 via a thrust ball bearing.

[0036] Locking bolts 12-3, several of which are equally rounded, are inserted into the mounting base 2. The lower end of the locking bolts 12-3 is inserted into the fixed base 1 by thread. Spur gears 12-2 are movably sleeved on the locking bolts 12-3. Several slots with equally rounded corners on the locking bolts 12-3 are movably provided with movable blocks 12-4, and the movable blocks 12-4 are fixedly connected to the spur gears 12-2. The rotation of the internal gear ring 12-1 can realize the synchronous rotation of several spur gears 12-2. With the cooperation of the movable blocks 12-4, the synchronous rotation and locking of several locking bolts 12-3 can be realized, improving the convenience of installing and fixing the mounting base 2 on the fixed base 1.

[0037] The convenient control mechanism 15 includes:

[0038] Adjusting rod 15-1 is rotatably inserted into the front side of support frame 8 via bearing. Driving rod 15-2 is rotatably installed in lifting groove 9 via bearing. One end of adjusting rod 15-1 is fixedly sleeved with a first bevel gear 15-3, and the lower end of driving rod 15-2 is fixedly sleeved with a second bevel gear 15-4 that meshes with the first bevel gear 15-3.

[0039] The worm 15-5 is rotatably mounted on the connecting frame 11 via a bearing, and is movably sleeved on the drive rod 15-2. A crossbar 15-6 is rotatably inserted into the connecting frame 11 via a bearing. One end of the crossbar 15-6 is fixedly sleeved with a worm wheel 15-7, and the worm wheel 15-7 is meshed with the worm 15-5.

[0040] The No. 3 bevel gear 15-8 is fixedly sleeved on the other end of the crossbar 15-6. The bevel gear 15-9 is fixedly sleeved on the internal gear ring 12-1. The No. 3 bevel gear 15-8 and the bevel gear ring 15-9 are meshed. With the cooperation of the convenient control mechanism 15, the internal gear ring 12-1 can be controlled to rotate at a lower position, so as to realize the convenient assembly and disassembly of the mounting base 2 on the fixed base 1.

[0041] When using this utility model, first rotate the adjusting rod 15-1, and by utilizing the meshing of the first bevel gear 15-3 and the second bevel gear 15-4, the drive rod 15-2 will rotate. The drive rod 15-2 drives the worm gear 15-5 to rotate, the worm gear 15-5 drives the worm wheel 15-7 to rotate, the worm wheel 15-7 drives the crossbar 15-6 to rotate, the crossbar 15-6 drives the third bevel gear 15-8 to rotate, the third bevel gear 15-8 drives the bevel gear ring 15-9 to rotate, and the bevel gear ring 15-9 drives... The internal gear ring 12-1 rotates, driving several spur gears 12-2 to rotate synchronously. The spur gears 12-2, through the movable block 12-4, drive the locking bolt 12-3 to rotate, causing the locking bolt 12-3 to unscrew upwards from the fixed base 1, and the nut of the locking bolt 12-3 to disengage from the mounting base 2. Then, the adjusting motor 13 can be started, driving the threaded rod 14 to rotate, causing the lifting block 10 to move upwards. The lifting block 10, through the connecting frame 11, drives... The mounting base 2 moves upward, causing the drive motor 3 to move upward and disengage its output shaft from the connecting shaft 4. Then, the limiting rod 17 can be pulled upward, disengaging its lower end from the limiting groove 21. The limiting rod 17 also causes the connecting ring 22 to move upward and compress the spring 18. The support frame 8 can then be pushed to the left, causing the sliding seat 7 to slide to the left on the fixed rail 6. Once the sliding seat 7 contacts the left-side limiting block 16, the... Release the limiting rod 17, causing the spring 18 to return to its original position and extend, pushing the connecting ring 22 downward. The connecting ring 22 then drives the limiting rod 17 downward to insert into the corresponding limiting groove 21, thus limiting the sliding seat 7 on the fixed rail 6. Then, start the adjusting motor 13 to drive the threaded rod 14 to reverse, causing the lifting block 10 to move downward. The lifting block 10 drives the mounting base 2 downward through the connecting frame 11. The mounting base 2 drives the drive motor 3 to move downward to a lower position for easy maintenance.

[0042] Compared with the prior art, the beneficial effects of this utility model are:

[0043] With the cooperation of the synchronous locking mechanism 12 and the convenient control mechanism 15, the mounting base 2 can be installed and removed from the fixed base 1 at a low position, which effectively improves the convenience of installation and removal of the mounting base 2.

[0044] By cooperating with the fixed rail 6, sliding seat 7, support frame 8, lifting block 10, connecting frame 11, adjusting motor 13 and threaded rod 14, the mounting base 2 can be raised and lowered so that after the mounting base 2 is removed from the fixed base 1, the mounting base 2 can be moved to a lower position to perform maintenance on components such as the drive motor 3.

[0045] The spring 18 can apply downward pressure to the limiting rod 17 through the connecting ring 22, so that the lower end of the limiting rod 17 is inserted into the limiting groove 21, thereby limiting the sliding seat 7 on the fixed rail 6.

[0046] After the limiting rod 17 is pulled upward and disengaged from the limiting groove 21, the limiting rod 17 can be limited in height by the rotation of the limiting rod 17 and the cooperation of the positioning block 19 and the positioning groove 20. This avoids the need to apply an upward pulling force to the limiting rod 17 when the sliding seat 7 is moved due to the influence of the spring 18.

[0047] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottom-mounted structure circulating fan, comprising a fixed base (1), a mounting base (2), a driving motor (3), a connecting shaft (4) and a fan blade (5), the fixed base (1) is fixedly arranged on the upper part of a furnace body, the upper part of the fixed base (1) is provided with the mounting base (2), the driving motor (3) is fixedly arranged on the mounting base (2), the connecting shaft (4) is rotatably arranged on the fixed base (1) through a bearing, the output shaft of the driving motor (3) is connected with the connecting shaft (4), and the lower end of the connecting shaft (4) is fixedly provided with the fan blade (5); characterized in that: It also contains: ​ The fixed rail (6) is fixedly arranged on the left side of the furnace body, the sliding seat (7) is slidably arranged on the fixed rail (6), the support frame (8) is fixedly arranged on the sliding seat (7), and the lifting block (10) is movably arranged in the lifting groove (9) formed in the support frame (8); The connecting frame (11) is fixedly arranged on the lifting block (10), and the connecting frame (11) is fixedly arranged on the left side of the mounting base (2), and the mounting base (2) is provided with a synchronous locking mechanism (12) connected with the fixed base (1); The adjusting motor (13) is fixedly arranged in the support frame (8), the threaded rod (14) is rotatably arranged in the lifting groove (9) through a bearing, the lifting block (10) is rotatably sleeved on the threaded rod (14), and the support frame (8) is provided with a convenient control mechanism (15) connected with the synchronous locking mechanism (12).

2. A below-the-floor structural circulation fan as set forth in claim 1, wherein: The synchronous locking mechanism (12) comprises: The inner gear ring (12-1) is rotatably arranged in the mounting base (2) through a bearing, a plurality of straight gears (12-2) are engaged in the inner gear ring (12-1), and the straight gears (12-2) are rotatably arranged in the mounting base (2) through a thrust ball bearing; The locking bolt (12-3) is a plurality of locking bolts, and the locking bolts are equally circularly arranged on the mounting base (2), the lower end of the locking bolt (12-3) is rotatably inserted into the fixed base (1) through a threaded hole, the straight gear (12-2) is movably sleeved on the locking bolt (12-3), a plurality of strip-shaped grooves are formed in the locking bolt (12-3), and the movable block (12-4) is movably arranged in the strip-shaped groove, and the movable block (12-4) is fixedly connected with the straight gear (12-2).

3. A below-the-floor structural circulation fan as set forth in claim 1 wherein: The convenient control mechanism (15) comprises: The adjusting rod (15-1) is rotatably inserted into the front side of the support frame (8) through a bearing, the driving rod (15-2) is rotatably arranged in the lifting groove (9) through a bearing, one end of the adjusting rod (15-1) is fixedly sleeved with a first bevel gear (15-3), and the lower end of the driving rod (15-2) is fixedly sleeved with a second bevel gear (15-4) engaged with the first bevel gear (15-3); The worm (15-5) is rotatably arranged on the connecting frame (11) through a bearing, and the worm (15-5) is movably sleeved on the driving rod (15-2), the cross rod (15-6) is rotatably inserted into the connecting frame (11) through a bearing, one end of the cross rod (15-6) is fixedly sleeved with a worm wheel (15-7), and the worm wheel (15-7) is rotatably arranged on the cross rod (15-6); The third bevel gear (15-8) is fixedly sleeved on the other end of the cross rod (15-6), the bevel gear (15-9) is fixedly sleeved on the inner gear ring (12-1), and the third bevel gear (15-8) is rotatably arranged on the bevel gear (15-9).

4. A below-the-floor structural circulator as set forth in claim 1, wherein: Both ends of the fixed rail (6) are fixedly provided with a limiting block (16), and the sliding seat (7) is arranged in abutment with the limiting block (16).

5. A below-the-floor structural circulation fan as set forth in claim 1 wherein: A limiting rod (17) is movably arranged on the sliding seat (7), and two limiting grooves (21) matched with the limiting rod (17) are formed on the fixed rail (6). A connecting ring (22) is fixedly sleeved on the limiting rod (17), the connecting ring (22) is movably arranged in a cylindrical groove formed in the sliding seat (7), a spring (18) is movably sleeved on the limiting rod (17), and the upper and lower ends of the spring (18) are connected with the top wall of the cylindrical groove and the connecting ring (22) respectively.

6. A submount structure circulating fan according to claim 5, wherein: Both sides of the connecting ring (22) are fixedly provided with a positioning block (19), the positioning block (19) is movably arranged in a positioning groove (20) formed on the inner wall of the cylindrical groove, the positioning groove (20) is arranged in an inverted "L" shape structure, and the lower end of the spring (18) is rotatably connected with the connecting ring (22) through a thrust ball bearing.

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