Fan shield of industrial gearbox

Abstract

The utility model provides a fan shield of an industrial gearbox. The fan is accommodated in the fan shield. The fan shield is of a dustpan-shaped structure defined by a top face and three side faces. Supporting plates are symmetrically welded to the outer sides of the second side face and the fourth side face. And a strip-shaped mounting hole and a lifting threaded hole are formed in the plate surface of the mounting support plate. The strip-shaped mounting hole extends in the vertical direction, and a notch opening end is formed at the bottom of the strip-shaped mounting hole. The fan shield is easy to mount and dismount, and field operation is facilitated; and the fan shield can be conveniently and independently mounted and dismounted under the condition that the whole set of transmission equipment is not moved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box technical field, especially relates to an industrial gear box fan shroud. BACKGROUND

[0002] The gear box generates a large amount of heat when running in industrial production.If heat dissipation is not timely, the gear box will malfunction due to high temperature, resulting in shortened service life. In order to improve the heat dissipation capacity of the gear box. Usually install a fan on the high-speed shaft of the gear box to dissipate heat. In the gear box system, the fan cover body bears double core functions: protecting rotating parts and optimizing heat dissipation airflow. Although the existing fan cover body has basic protection capability, it has significant defects:

[0003] A. The traditional cover body is usually fixed by integral welding or bolt multi-point fixing design, which leads to long time and special tools for disassembly. If rust or deformation occurs, it is more difficult to separate. When maintaining, the whole needs to be hoisted, which increases downtime;

[0004] B. The hoisting point design is not considered, and additional support is needed during transportation;

[0005] C. The existing cover body is prone to structural failure during transportation or dragging, which directly affects the service life of the fan.

[0006] Therefore, it is of great significance to develop an industrial gear box fan shroud. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing an industrial gear box fan shroud to solve the problems in the prior art.

[0008] The technical scheme adopted by the utility model to achieve the purpose is as follows: an industrial gear box fan shroud, a fan is fixed on the high-speed shaft of the industrial gear box. The fan is contained in the fan shroud. The fan shroud is a dustpan-shaped structure enclosed by the top surface and three side surfaces. The fan shroud as a whole presents a hollow cuboid configuration with one end open and the bottom surface missing. The four side surfaces of the cuboid are sequentially marked as first to fourth side surfaces. The first side surface of the fan shroud is completely open, and forms a fan access channel together with the missing bottom surface. The third side surface of the fan shroud is provided with a high-speed shaft avoiding hole. The high-speed shaft avoiding hole extends along the vertical direction, and the bottom forms a notched open end. The second side surface and the fourth side surface are symmetrically welded with mounting support plates outside. The mounting support plates are provided with long strip mounting holes and lifting threaded holes on the plate surface. The long strip mounting holes extend along the vertical direction, and the bottom forms a notched open end.

[0009] Further, the wall thickness of the fan shroud is 5mm.

[0010] Further, the inner wall of the fan shroud is provided with reinforcing ribs.

[0011] Further, the thickness of the mounting support plate is 10 mm.

[0012] The utility model discloses further disclose a gear box, including the fan guard according to any one of claims 1~4. The front and back sides of the industrial gear box are fixed with screw rod. The fan guard is arranged at the side of the industrial gear box. The mounting support plate is vertically lowered and clamped into the screw rod through the long strip mounting hole. The screw rod is screwed with the nut. The nut compresses the mounting support plate and the industrial gear box. The fan guard covers the fan. The high speed shaft extends out of the inner chamber of the fan guard through the high speed shaft avoiding hole.

[0013] The technical effect of the utility model is self-evident:

[0014] A. The simple and practical, safe and reliable, convenient field operation's spare part is more applicable to the severe working condition environment;

[0015] B. The fan guard is simple to install and disassemble, and convenient for field operation. The fan guard can be installed and disassembled individually without moving the entire transmission equipment.

[0016] C. The increased wall thickness and the surrounding reinforcing ribs ensure that the fan guard is not deformed and damaged in the case of dragging during transportation, heavy object falling and hitting during use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a fan guard structure schematic diagram;

[0018] Figure 2 It is a fan guard bottom view;

[0019] Figure 3 It is a fan guard side view;

[0020] Figure 4 It is a gear box structure schematic diagram; Figure 4 a, 4b and 4c are different views of the gear box.

[0021] In the figure: industrial gear box 1, fan 2, fan guard 3, high speed shaft avoiding hole 301, mounting support plate 4, long strip mounting hole 401, lifting threaded hole 402, reinforcing rib 5, screw rod 6, nut 7. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with examples, but should not be understood as the above-mentioned subject range of the utility model is limited to the following examples. According to the ordinary technical knowledge and conventional means in the art, various substitutions and changes are made without departing from the above-mentioned technical thought of the utility model, which should be included in the protection scope of the utility model.

[0023] Example 1:

[0024] Referring to Figure 1 , Figure 2 and Figure 3 . The embodiment provides an industrial gear box fan guard. A fan 2 is fixed on a high-speed shaft of an industrial gear box 1. The fan 2 is accommodated in a fan guard 3.

[0025] The fan guard 3 is a dustpan-shaped structure with a top surface and three side surfaces. The fan guard 3 has a hollow cuboid configuration with one end open and a bottom surface missing. Four side surfaces of the cuboid are sequentially marked as first to fourth side surfaces. The first side surface of the fan guard 3 is completely open, and cooperates with the missing bottom surface to form a fan access channel. The third side surface of the fan guard 3 is provided with a high-speed shaft avoiding hole 301. The high-speed shaft avoiding hole 301 extends in the vertical direction, and the bottom forms a notch open end. The second side surface and the fourth side surface are symmetrically welded with a mounting support plate 4 outside. The mounting support plate 4 is provided with a long strip mounting hole 401 and a lifting threaded hole 402 on the plate surface. The long strip mounting hole 401 extends in the vertical direction, and the bottom forms a notch open end.

[0026] Embodiment 2:

[0027] The main content of the embodiment is the same as that of embodiment 1, wherein the wall thickness of the fan guard 3 is 5 mm. The thickness of the mounting support plate 4 is 10 mm.

[0028] Embodiment 3:

[0029] The main content of the embodiment is the same as that of embodiment 1 or 2, wherein a reinforcing rib 5 is arranged on the inner wall of the fan guard 3.

[0030] Embodiment 4:

[0031] Referring to Figure 4 , the embodiment provides a gear box comprising the fan guard 3 according to any one of embodiments 1-3. A screw rod 6 is fixed on the front and rear side surfaces of the industrial gear box 1. In the embodiment, there are four screw rods 6 in total. The fan guard 3 is arranged beside the industrial gear box 1. The mounting support plate 4 is vertically lowered and clamped into the screw rod 6 through the long strip mounting hole 401. A nut 7 is screwed on the screw rod 6. The nut 7 presses the mounting support plate 4 and the industrial gear box 1 tightly. The fan guard 3 covers the fan 2. The high-speed shaft extends out of the inner cavity of the fan guard 3 through the high-speed shaft avoiding hole 301.

[0032] If it is necessary to disassemble and inspect on site, only the nut 7 needs to be loosened, a lifting bolt is screwed into the lifting silk hole 402, and then it can be vertically lifted out.

Claims

1. An industrial gear box fan shroud, a fan (2) is fixed on a high speed shaft of an industrial gear box (1); the fan (2) is accommodated in a fan shroud (3), characterized in that: The fan guard (3) is a dustpan-shaped structure with a top surface and three side surfaces; the fan guard (3) has a hollow cuboid configuration with one end open and a missing bottom surface; the four side surfaces of the cuboid are sequentially marked as the first to fourth side surfaces; the first side surface of the fan guard (3) is completely open and forms a fan access channel together with the missing bottom surface; the third side surface of the fan guard (3) is provided with a high-speed shaft avoiding hole (301); the high-speed shaft avoiding hole (301) extends in the vertical direction and has a notch open end at the bottom; the second side surface and the fourth side surface are symmetrically welded with mounting support plates (4) outside; the mounting support plates (4) are provided with long strip mounting holes (401) and lifting threaded holes (402) on the plate surfaces; the long strip mounting holes (401) extend in the vertical direction and have a notch open end at the bottom.

2. An industrial gear box fan shroud according to claim 1, characterized in that: The wall thickness of the fan guard (3) is 5 mm.

3. An industrial gear box fan shroud as claimed in claim 1, wherein: The inner wall of the fan guard (3) is provided with a reinforcing rib (5).

4. An industrial gear box fan shroud as claimed in claim 1, wherein: The thickness of the mounting support plate (4) is 10 mm.

5. A gearbox characterised by: The industrial gear box (1) is provided with a fan guard (3) according to any one of claims 1-4; a screw rod (6) is fixed on the front and rear side surfaces of the industrial gear box (1); the fan guard (3) is arranged beside the industrial gear box (1); the mounting support plate (4) is vertically lowered and clamped into the screw rod (6) through the long strip mounting hole (401); a nut (7) is screwed on the screw rod (6); the nut (7) presses the mounting support plate (4) and the industrial gear box (1) tightly; the fan guard (3) covers the fan (2); the high-speed shaft extends out of the inner cavity of the fan guard (3) through the high-speed shaft avoiding hole (301).

Images