A small ventilator hoist assembly type rubber vibration isolator

Abstract

This utility model discloses a prefabricated rubber vibration isolator for suspending small ventilators, comprising: an inner support frame with screw holes and nuts on the upper side of the screw holes, the nuts being fixed to the inner support frame by welding; a rubber shock absorber installed inside the inner support frame; a lower pad between the bottom of the rubber shock absorber and the inner support frame; and a top connection and fixation to the inner support frame by screws. The lower pad has fixing holes on both sides and a through hole in the middle, with left and right support plates corresponding to the fixing holes. Beneficial effects: It allows the rubber shock absorber to be under the same stress state as a properly mounted device, effectively ensuring the vibration damping and isolation effect; the structure is compact, installation is convenient and quick, and it can solve the problem of vibration damping and isolation for suspended small ventilators, eliminating the risk of ventilator falling and effectively improving safety performance.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction and isolation technology for ship ventilation fans, and in particular to a prefabricated rubber vibration isolator for hoisting small ventilation fans. Background Technology

[0002] Special-purpose vessels require numerous small fans to pressurize and supply air to the cabins. These small fans consist of a motor, blades, a casing, and a base. During operation, the high-speed rotation of the motor shaft, driven by the energized motor, causes significant vibration to the casing and base. When small fans are installed upright in the cabin, standard rubber shock absorbers or spring / wire rope shock absorbers are typically used for vibration damping between the fan base and the support extending from the deck / bullspan. However, most small fans on special-purpose vessels are usually suspended from these deck / bullspan supports. Using spring / wire rope shock absorbers is limited by installation space and vibration damping performance requirements, failing to meet the vibration damping requirements of the ventilation system. Furthermore, spring / wire rope shock absorbers are expensive and not economically viable. Utility Model Content

[0003] This application provides a prefabricated rubber vibration isolator for hoisting small ventilators, which solves the problem of vibration reduction and isolation in the prior art for the suspension and hoisting of small ventilators.

[0004] This application provides a prefabricated rubber vibration isolator for hoisting small ventilation fans, comprising: an inner support frame, the inner support frame having screw holes, a nut being provided on the upper side of the screw holes, the nut being fixed to the inner support frame by welding, a rubber shock absorber being provided inside the inner support frame, a lower pad being provided between the bottom of the rubber shock absorber and the inner support frame, the top of the rubber shock absorber being connected and fixed to the inner support frame by screws, the lower pad being provided with fixing holes on both sides and a through hole in the middle, left and right support plates being provided at the fixing holes, a flange being provided between the left and right support plates, and reinforcing connecting ribs being welded to the inner support frame.

[0005] Furthermore, the wing edge and the rubber shock absorber are integrated into one unit, there are two left and right support plates, and the bottom of the support plates are connected and fixed to the lower pad plate by screws. The left and right support plates and the lower pad plate are perpendicular to each other, and the top of the left and right support plates are connected and fixed to the hanger by bolts.

[0006] Furthermore, the screw hole and the threaded hole on the nut are on the same straight line, and the inner bracket is connected and fixed to the fan base by the nut and bolt.

[0007] Furthermore, the nut is located at the center of the bottom of the inner support.

[0008] Furthermore, the inner support is generally U-shaped, the reinforcing connecting ribs are parallel to the bottom of the inner support, and there are two reinforcing connecting ribs located on the front and rear sides of the inner support.

[0009] Furthermore, the inner support, lower pad, left and right support plates, and reinforcing connecting ribs are made of stainless steel and enclose the rubber shock absorber.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. The weight of the fan can be effectively transferred to the upper part of the rubber shock absorber, so that the rubber shock absorber is in the same stress state as the main unit, which effectively ensures the effect of vibration reduction and isolation.

[0011] 2. The assembly and fixation are achieved through internal brackets, rubber shock absorbers, lower pads, and left and right support plates. The structure is compact and the installation is convenient and quick. It can solve the problem of vibration reduction and isolation for the suspension and hoisting of small ventilators, and has a good vibration isolation effect on the low, medium and high frequency vibrations of ventilators in special ship ventilation systems.

[0012] 3. Since the internal support, lower pad, left and right support plates and reinforcing connecting ribs are all made of stainless steel, even if the rubber melts at high temperatures in the event of a fire, the stainless steel components can still reliably connect the ventilation fan to the support extending from the deck / bullet, preventing the ventilation fan from falling and effectively improving safety performance. Furthermore, the cost of each component is lower than that of springs and wire rope shock absorbers, making it suitable for widespread use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly state of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the specific structure of the present utility model; Figure 4 This is a longitudinal sectional view of the present invention; Figure 5 This is a schematic diagram of the specific structure of the inner support in this utility model; Figure 6 This is a schematic diagram of the specific structure of the lower pad in this utility model. Detailed Implementation

[0014] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example 1

[0015] A prefabricated rubber vibration isolator for hoisting small ventilation fans includes: an inner support 1, on which screw holes 102 are provided, and nuts 101 are provided on the upper side of the screw holes 102. The nuts 101 are fixed to the inner support 1 by welding. A rubber shock absorber 4 is provided inside the inner support 1. A lower pad 2 is provided between the bottom of the rubber shock absorber 4 and the inner support 1, and the top of the rubber shock absorber 4 is connected and fixed to the inner support 1 by screws. Fixing holes 202 are provided on both sides of the lower pad 2, and a through hole 201 is provided in the middle. Left and right support plates 3 are provided at the fixing holes 202, and a flange 301 is provided between the left and right support plates 3. Reinforcing connecting ribs 5 are welded on the inner support 1.

[0016] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: The weight of the ventilator can be effectively transferred to the upper end of the rubber shock absorber 4, so that the rubber shock absorber 4 is in the same stress state as the upright installation, which effectively ensures the effect of shock absorption and vibration isolation. The system is assembled and fixed using an inner bracket 1, rubber shock absorbers 4, a lower pad 2, and left and right support plates 3. It has a compact structure and is easy and quick to install. It can solve the problem of vibration reduction and isolation for the suspension and hoisting of small ventilators, and has a good vibration isolation effect on the low, medium and high frequency vibrations of ventilators in special ship ventilation systems. Example 2

[0017] The wing 301 and the rubber shock absorber 4 are integrally formed. There are two left and right support plates 3, and their bottoms are connected and fixed to the lower pad 2 by screws. The left and right support plates 3 and the lower pad 2 are perpendicular to each other. The tops of the left and right support plates 3 are connected and fixed to the hanger by bolts. The screw hole 102 and the threaded hole on the nut 101 are on the same straight line. The inner bracket 1 is connected and fixed to the fan base by the nut 101 and the bolts. The nut 101 is located at the center of the bottom of the inner bracket 1. The inner bracket 1 is generally U-shaped. The reinforcing connecting ribs 5 are parallel to the bottom of the inner bracket 1. There are two reinforcing connecting ribs 5, located on the front and rear sides of the inner bracket 1. The inner bracket 1, the lower pad 2, the left and right support plates 3 and the reinforcing connecting ribs 5 are made of stainless steel and form a wrap around the rubber shock absorber 4.

[0018] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Since the inner support 1, lower pad 2, left and right support plates 3 and reinforcing connecting ribs 5 are all made of stainless steel, even if the rubber melts at high temperature in the event of a fire, the stainless steel components can still reliably connect the ventilation fan to the support extending from the deck / bullet, preventing the ventilation fan from falling. Furthermore, the cost of each component is lower than that of springs and wire rope shock absorbers, making them suitable for widespread use. The design of the wing edge 301 allows it to be securely fixed between the left and right support plates 3 and the lower pad plate 2. By setting the reinforcing connecting rib 5, the strength of the vibration isolator can be effectively improved, and deformation of the isolator can be prevented.

[0019] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0020] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A prefabricated rubber vibration isolator for hoisting small ventilators, characterized in that, include: An inner support frame is provided with screw holes, and nuts are provided on the upper side of the screw holes. The nuts are fixed to the inner support frame by welding. A rubber shock absorber is provided inside the inner support frame. A lower pad is provided between the bottom of the rubber shock absorber and the inner support frame. The top of the rubber shock absorber is connected and fixed to the inner support frame by screws. Fixing holes are provided on both sides of the lower pad and a through hole is provided in the middle. Left and right support plates are provided at the fixing holes. A wing is provided between the left and right support plates. Reinforcing connecting ribs are welded on the inner support frame.

2. The assembled rubber vibration isolator for hoisting a small ventilator as described in claim 1, characterized in that, The wing edge and the rubber shock absorber are integrated into one piece. There are two left and right support plates, and their bottoms are connected and fixed to the lower pad plate by screws. The left and right support plates and the lower pad plate are perpendicular to each other. The tops of the left and right support plates are connected and fixed to the hanger by bolts.

3. The assembled rubber vibration isolator for hoisting a small ventilator as described in claim 1, characterized in that, The screw hole and the threaded hole on the nut are on the same straight line, and the inner bracket is connected and fixed to the fan base by the nut and bolt.

4. The assembled rubber vibration isolator for hoisting a small ventilator as described in claim 1, characterized in that, The nut is located at the center of the bottom of the inner bracket.

5. The assembled rubber vibration isolator for hoisting a small ventilator as described in claim 1, characterized in that, The inner support is generally U-shaped, and the reinforcing connecting ribs are parallel to the bottom of the inner support. There are two reinforcing connecting ribs, located on the front and rear sides of the inner support.

6. The assembled rubber vibration isolator for hoisting a small ventilator as described in claim 1, characterized in that, The inner support, lower pad, left and right support plates, and reinforcing connecting ribs are made of stainless steel and enclose the rubber shock absorber.

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