Induced draft fan maintenance suspension device

Abstract

The utility model discloses an induced draft fan maintenance suspension device, and relates to the technical field of induced draft fan maintenance. The induced draft fan maintenance suspension device comprises an induced draft fan body, a positioning frame is arranged at the bottom of the induced draft fan body, a positioning mechanism is arranged on one side of the induced draft fan body, and a lifting mechanism is arranged on one side of the induced draft fan body. According to the suspension device for maintenance of the induced draft fan, by arranging a damping sleeve, when a main body of the induced draft fan needs to be maintained, fixing bolts mounted on a mounting disc need to be dismounted firstly, then a positioning frame is lifted upwards, a plurality of pull rings are pulled in sequence at the moment, the pull rings drive connecting rods and clamping rods to slide, springs are compressed at the moment, and then the main body of the induced draft fan is maintained; and the clamping rod is separated from the interior of the clamping hole, then the force for lifting the positioning frame is loosened, the induced draft fan body descends, at the moment, the induced draft fan body slowly descends under the action of the damping sleeve and the damping rod, and the device facilitates maintenance of the induced draft fan body.

Description

Technical Field

[0001] The utility model belongs to the technical field of induced draft fan maintenance, and in particular relates to an induced draft fan maintenance suspension device. Background Art

[0002] The duct fan is an important ventilation, air exchange and exhaust equipment, which is widely used in buildings, factories, mines, tunnels and other places. It drives the impeller to rotate through the motor to generate negative pressure, extract air from the system or equipment, and then transport the air to the area that needs ventilation or exhaust through the duct or air duct.

[0003] The above device does not have a structure for lifting and staggered maintenance of the induced draft fan when in use. As a result, when the existing induced draft fan is damaged and needs to be repaired or inspected, since both ends of the induced draft fan are connected to the ventilation duct, the entire induced draft fan needs to be dismantled and transported to the ground to complete the inspection or repair. The process is too cumbersome. Based on the deficiencies of the existing technology, the utility model designs a induced draft fan maintenance suspension device. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides an induced draft fan maintenance suspension device, which has the characteristics of staggered maintenance of the induced draft fan by lifting and lowering.

[0005] To achieve the above object, the utility model provides the following technical solutions: an induced draft fan maintenance suspension device, comprising an induced draft fan body, a positioning frame is provided at the bottom of the induced draft fan body, a positioning mechanism is provided on one side of the induced draft fan body, and a lifting mechanism is provided on one side of the induced draft fan body;

[0006] A lifting mechanism, the lifting mechanism includes a lifting sleeve, an arc block, a slide groove, a circular groove, a slider, a damping rod and a damping sleeve, the lifting sleeve is arranged on one side of the induced draft fan body, the upper surface of the lifting sleeve is fixedly connected with the arc block, the interior of the lifting sleeve is provided with a slide groove, the lower surface of the slide groove is provided with a circular groove, the interior of the lifting sleeve is slidably connected with a slider, the bottom of the slider is provided with a damping rod, and the outer surface of the damping rod is provided with a damping sleeve.

[0007] As an optimal technical solution for an induced draft fan maintenance suspension device of the utility model, a mounting plate is fixedly connected to one side of the induced draft fan body, a mounting frame is fixedly installed on the bottom of the induced draft fan body, a motor is arranged inside the induced draft fan body, a fixing frame is arranged on one side of the motor, and fan blades are arranged on one side of the motor.

[0008] As an optimal technical solution for an induced draft fan maintenance suspension device of the utility model, a connection hole is provided on the upper surface of the positioning frame, an installation hole is provided on the upper surface of the positioning frame, a suspension rod is arranged on the top of the positioning frame, a clamping hole is provided on one side of the suspension rod, and a fixing nut is threadedly connected to the outer surface of the suspension rod.

[0009] As an optimal technical solution for an induced draft fan maintenance suspension device of the utility model, the positioning mechanism includes a positioning block, a limit groove, a pull ring, a connecting rod, a clamping rod and a spring. The positioning block is fixedly connected to the bottom of the lifting sleeve, a limit groove is provided on one side of the positioning block, a pull ring is slidably connected to one side of the positioning block, a connecting rod is fixedly connected to one side of the pull ring, a clamping rod is fixedly connected to one side of the connecting rod, and a spring is movably sleeved on the outer surface of the connecting rod.

[0010] As a preferred technical solution of the induced draft fan maintenance suspension device of the utility model, the lifting sleeve is arranged on the outer surface of the suspension rod, and the sliding block is slidably connected to the inside of the sliding groove.

[0011] As a preferred technical solution of the induced draft fan maintenance suspension device of the utility model, the damping rod is slidably connected to the inside of the damping sleeve, and the damping sleeve is arranged inside the lifting sleeve.

[0012] As a preferred technical solution of the induced draft fan maintenance suspension device of the utility model, the pull ring is slidably connected to the bottom of the lifting sleeve, and the connecting rod is slidably connected to the inside of the limiting groove.

[0013] As a preferred technical solution of the induced draft fan maintenance suspension device of the utility model, the clamping rod is slidably inserted into the inside of the clamping hole, and the spring is movably clamped into the inside of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is in use, by setting the damping sleeve, when it is necessary to repair the induced draft fan body, it is necessary to first remove the fixing bolts installed on the mounting plate, and then lift the positioning frame upwards, at this time, pull a plurality of pull rings in sequence, so that the pull rings drive the connecting rod and the clamping rod to slide, at this time the spring is compressed, and the clamping rod is disengaged from the inside of the clamping hole, and then the force of lifting the positioning frame is loosened, so that the induced draft fan body descends, and at this time the induced draft fan body is slowly lowered by the action of the damping sleeve and the damping rod, and the device is convenient for repairing the induced draft fan body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of the induced draft fan of the utility model;

[0018] Figure 2 This is a schematic diagram of the positioning frame structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the suspension rod structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the positioning mechanism structure of the utility model.

[0022] In the figure: 1. induced draft fan body; 101. mounting plate; 102. mounting frame; 103. motor; 104. fixing frame; 105. fan blade; 2. positioning frame; 201. connecting hole; 202. mounting hole; 203. suspension rod; 204. clamping hole; 205. fixing nut; 3. positioning mechanism; 301. positioning block; 302. limiting groove; 303. pull ring; 304. connecting rod; 305. clamping rod; 306. spring; 4. lifting mechanism; 401. lifting sleeve; 402. arc block; 403. slide groove; 404. round groove; 405. slider; 406. damping rod; 407. damping sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-5 The utility model provides the following technical solutions: a maintenance suspension device for an induced draft fan, comprising an induced draft fan body 1, a positioning frame 2 is arranged at the bottom of the induced draft fan body 1, a positioning mechanism 3 is arranged at one side of the induced draft fan body 1, and a lifting mechanism 4 is arranged at one side of the induced draft fan body 1;

[0026] A mounting plate 101 is fixedly connected to one side of the induced draft fan body 1, a mounting frame 102 is fixedly installed at the bottom of the induced draft fan body 1, a motor 103 is arranged inside the induced draft fan body 1, a fixing frame 104 is arranged on one side of the motor 103, and a fan blade 105 is arranged on one side of the motor 103.

[0027] A connecting hole 201 is provided on the upper surface of the positioning frame 2, a mounting hole 202 is provided on the upper surface of the positioning frame 2, a suspension rod 203 is provided on the top of the positioning frame 2, a clamping hole 204 is provided on one side of the suspension rod 203, and a fixing nut 205 is threadedly connected to the outer surface of the suspension rod 203.

[0028] What needs to be further explained is: first, the induced draft fan body 1 is installed on the top of the positioning frame 2 through the bottom mounting frame 102, and a plurality of connecting holes 201 are opened on the positioning frame 2. By inserting the suspension rod 203 into the connecting hole 201, the fixing nut 205 is convenient for fixing the suspension rod 203, so that the suspension rod 203 is fixed on the top of the positioning frame 2, and a lifting mechanism 4 is arranged on the top of the suspension rod 203. The lifting mechanism 4 is convenient for the induced draft fan body 1 to be slowly lowered during maintenance, and a positioning mechanism 3 is arranged at the bottom of the lifting mechanism 4. The positioning mechanism 3 is convenient for positioning the suspension rod 203, so that the induced draft fan body 1 is convenient to be fixed when in use.

[0029] Example 2

[0030] See also Figure 3-5 , the utility model provides the following technical solutions:

[0031] The lifting mechanism 4 includes a lifting sleeve 401, an arc block 402, a slide groove 403, a circular groove 404, a slider 405, a damping rod 406 and a damping sleeve 407. The lifting sleeve 401 is arranged on one side of the induced draft fan body 1. The upper surface of the lifting sleeve 401 is fixedly connected with the arc block 402. The interior of the lifting sleeve 401 is provided with a slide groove 403. The lower surface of the slide groove 403 is provided with a circular groove 404. The interior of the lifting sleeve 401 is slidably connected with a slider 405. The bottom of the slider 405 is provided with a damping rod 406. The outer surface of the damping rod 406 is provided with a damping sleeve 407.

[0032] The positioning mechanism 3 includes a positioning block 301, a limiting groove 302, a pull ring 303, a connecting rod 304, a clamping rod 305 and a spring 306. The positioning block 301 is fixedly connected to the bottom of the lifting sleeve 401. A limiting groove 302 is provided on one side of the positioning block 301. A pull ring 303 is slidably connected to one side of the positioning block 301. A connecting rod 304 is fixedly connected to one side of the pull ring 303. A clamping rod 305 is fixedly connected to one side of the connecting rod 304. A spring 306 is movably sleeved on the outer surface of the connecting rod 304.

[0033] The lifting sleeve 401 is arranged on the outer surface of the suspension rod 203 , and the slider 405 is slidably connected inside the slide groove 403 .

[0034] The damping rod 406 is slidably connected inside the damping sleeve 407 , and the damping sleeve 407 is arranged inside the lifting sleeve 401 .

[0035] The pull ring 303 is slidably connected to the bottom of the lifting sleeve 401 , and the connecting rod 304 is slidably connected to the inside of the limiting groove 302 .

[0036] The clamping rod 305 is slidably inserted into the clamping hole 204 , and the spring 306 is movably clamped into the limiting groove 302 .

[0037] What needs to be further explained is: first, the fixing bolts installed on the mounting plate 101 need to be removed, and then the positioning frame 2 is lifted upwards. At this time, multiple pull rings 303 are pulled in sequence, so that the pull rings 303 drive the connecting rod 304 and the clamping rod 305 to slide. At this time, the spring 306 is compressed, and the clamping rod 305 is disengaged from the inside of the clamping hole 204. Then, the force of lifting the positioning frame 2 is loosened, so that the induced draft fan body 1 is lowered, and at this time, the induced draft fan body 1 is slowly lowered through the action of the damping sleeve 407 and the damping rod 406.

[0038] Working principle: When a induced draft fan maintenance suspension device is used, first, the induced draft fan body 1 is installed on the top of the positioning frame 2 through the bottom mounting frame 102. A plurality of connection holes 201 are provided on the positioning frame 2. By inserting the suspension rod 203 into the connection hole 201, the fixing nut 205 is convenient for fixing the suspension rod 203, so that the suspension rod 203 is fixed on the top of the positioning frame 2. A lifting mechanism 4 is provided on the top of the suspension rod 203. By providing the lifting mechanism 4, the induced draft fan body 1 can be slowly lowered during maintenance. A positioning mechanism 3 is provided at the bottom of the lifting mechanism 4. By providing the positioning mechanism 3, the suspension rod 203 can be positioned, so that the induced draft fan body 1 can be easily fixed when in use.

[0039] When the induced draft fan body 1 needs to be repaired, the fixing bolts installed on the mounting plate 101 need to be removed first, and then the positioning frame 2 is lifted upwards. At this time, multiple pull rings 303 are pulled in sequence, so that the pull rings 303 drive the connecting rod 304 and the clamping rod 305 to slide. At this time, the spring 306 is compressed, and the clamping rod 305 is disengaged from the inside of the clamping hole 204. Then, the force of lifting the positioning frame 2 is loosened, so that the induced draft fan body 1 descends. At this time, the induced draft fan body 1 is slowly lowered by the action of the damping sleeve 407 and the damping rod 406. This device facilitates the repair of the induced draft fan body 1.

[0040] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A maintenance suspension device for an induced draft fan, comprising an induced draft fan body (1), characterized in that: A positioning frame (2) is provided at the bottom of the induced draft fan body (1), a positioning mechanism (3) is provided on one side of the induced draft fan body (1), and a lifting mechanism (4) is provided on one side of the induced draft fan body (1); A lifting mechanism (4), the lifting mechanism (4) comprising a lifting sleeve (401), an arc block (402), a slide groove (403), a circular groove (404), a slider (405), a damping rod (406) and a damping sleeve (407), the lifting sleeve (401) being arranged on one side of an induced draft fan body (1), the upper surface of the lifting sleeve (401) being fixedly connected to the arc block (402), the interior of the lifting sleeve (401) being provided with a slide groove (403), the lower surface of the slide groove (403) being provided with a circular groove (404), the interior of the lifting sleeve (401) being slidably connected to a slider (405), the bottom of the slider (405) being provided with a damping rod (406), and the outer surface of the damping rod (406) being provided with a damping sleeve (407).

2. The induced draft fan maintenance suspension device according to claim 1, characterized in that: A mounting plate (101) is fixedly connected to one side of the induced draft fan body (1), a mounting frame (102) is fixedly mounted on the bottom of the induced draft fan body (1), a motor (103) is arranged inside the induced draft fan body (1), a fixing frame (104) is arranged on one side of the motor (103), and a fan blade (105) is arranged on one side of the motor (103).

3. The induced draft fan maintenance suspension device according to claim 1, characterized in that: The upper surface of the positioning frame (2) is provided with a connection hole (201), the upper surface of the positioning frame (2) is provided with a mounting hole (202), a suspension rod (203) is arranged at the top of the positioning frame (2), a clamping hole (204) is provided on one side of the suspension rod (203), and a fixing nut (205) is threadedly connected to the outer surface of the suspension rod (203).

4. The induced draft fan maintenance suspension device according to claim 1, characterized in that: The positioning mechanism (3) comprises a positioning block (301), a limiting groove (302), a pull ring (303), a connecting rod (304), a clamping rod (305) and a spring (306); the positioning block (301) is fixedly connected to the bottom of the lifting sleeve (401); a limiting groove (302) is provided on one side of the positioning block (301); a pull ring (303) is slidably connected to one side of the positioning block (301); a connecting rod (304) is fixedly connected to one side of the pull ring (303); a clamping rod (305) is fixedly connected to one side of the connecting rod (304); and a spring (306) is movably sleeved on the outer surface of the connecting rod (304).

5. The induced draft fan maintenance suspension device according to claim 1, characterized in that: The lifting sleeve (401) is arranged on the outer surface of the suspension rod (203), and the sliding block (405) is slidably connected inside the sliding groove (403).

6. The induced draft fan maintenance suspension device according to claim 1, characterized in that: The damping rod (406) is slidably connected inside the damping sleeve (407), and the damping sleeve (407) is arranged inside the lifting sleeve (401).

7. The induced draft fan maintenance suspension device according to claim 4, characterized in that: The pull ring (303) is slidably connected to the bottom of the lifting sleeve (401), and the connecting rod (304) is slidably connected to the inside of the limiting groove (302).

8. The induced draft fan maintenance suspension device according to claim 4, characterized in that: The clamping rod (305) is slidably inserted into the inside of the clamping hole (204), and the spring (306) is movably clamped into the inside of the limiting groove (302).

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