Totally-enclosed fan belt pulley protective cover convenient to disassemble, assemble and maintain

Abstract

A totally-enclosed fan belt pulley protective cover convenient to disassemble, assemble and maintain comprises a belt pulley cover body, an inner baffle fixedly connected to the inner side of the belt pulley cover body and an outer baffle fixedly connected to the outer side of the belt pulley cover body, and the belt pulley cover body comprises a belt pulley cover body upper half part and a belt pulley cover body lower half part which are fixedly connected through a fastener. The inner baffle comprises an inner baffle upper half part and an inner baffle lower half part, the inner baffle upper half part is fixed on the belt pulley cover body upper half part through a fastener, the inner baffle lower half part is fixed on the belt pulley cover body lower half part through a fastener, and the outer baffle comprises an outer baffle upper half part and an outer baffle lower half part. The upper half part of the outer baffle is fixed on the upper half part of the belt pulley cover body through a fastener, and the lower half part of the outer baffle is fixed on the lower half part of the belt pulley cover body through a fastener; and due to the design of the split type totally-closed structure, disassembly and assembly are convenient, and disassembly, assembly, maintenance, replacement and other operations can be achieved without influencing the two belt wheels which are adjusted to be horizontal.

Description

Technical Field

[0001] The utility model relates to a fully enclosed fan pulley protective cover which is convenient for disassembly, assembly and maintenance. Background Art

[0002] The existing front-to-back centrifugal fans with belt drive mainly include components such as a fan impeller, a motor, a base, a belt, a pulley, a taper sleeve, etc. The transmission components such as the pulley are arranged outside the machine case. Without certain protective measures, some safety accidents may occur. For safety considerations, a protective cover is set during the operation of the fan to reduce risks. The protective cover is a component used to protect the pulley and the transmission belt, and can effectively prevent visitors, maintenance personnel or other bodies from touching the high-speed rotating belt and pulley, reducing the occurrence of accidental injuries. At the same time, it can effectively block part of the dust, debris and other foreign matters generated by the friction between the pulley and the belt from scattering into the surrounding environment and the unit, and can keep the work site clean and hygienic.

[0003] The pulley protective covers of the existing front-to-back centrifugal fans with belt drive are basically semi-enclosed, that is, there is no closed protection inside the fan unit. When the fan unit runs at high speed, it does not have a particularly good protective effect. In addition, the existing protective covers also have problems such as poor heat dissipation, no observation window, inconvenient disassembly and assembly, etc., and need to be further improved. Summary of the Invention

[0004] Aiming at the deficiencies existing in the above problems, the utility model provides a fully enclosed fan pulley protective cover which is convenient for disassembly, assembly and maintenance.

[0005] To achieve the above purpose, the utility model provides a fully enclosed fan pulley protective cover which is convenient for disassembly, assembly and maintenance, including a pulley cover body, an inner baffle fixedly connected to the inner side of the pulley cover body, and an outer baffle fixedly connected to the outer side of the pulley cover body. The pulley cover body includes an upper half of the pulley cover body and a lower half of the pulley cover body fixedly connected by fasteners. The inner baffle includes an upper half of the inner baffle and a lower half of the inner baffle. The upper half of the inner baffle is fixed on the upper half of the pulley cover body by fasteners, and the lower half of the inner baffle is fixed on the lower half of the pulley cover body by fasteners. The outer baffle includes an upper half of the outer baffle and a lower half of the outer baffle. The upper half of the outer baffle is fixed on the upper half of the pulley cover body by fasteners, and the lower half of the outer baffle is fixed on the lower half of the pulley cover body by fasteners. At the same time, the upper half of the outer baffle and the lower half of the outer baffle are also connected by fasteners.

[0006] Further, an observation window is provided on the upper half of the pulley cover body, and a detachable cover plate is provided on the lower half of the pulley cover body.

[0007] Further, long oval holes are provided on the upper half of the inner baffle, the lower half of the inner baffle, the upper half of the outer baffle, and the lower half of the outer baffle. A protective net is arranged at the position of the long oval hole on the upper half of the inner baffle, the lower half of the inner baffle, the upper half of the outer baffle, and the lower half of the outer baffle, and the corresponding long oval hole is completely blocked by the protective net.

[0008] Further, the installation method of the protective net on the upper half of the inner baffle, the lower half of the inner baffle, the upper half of the outer baffle, and the lower half of the outer baffle is to be pressed tightly by a pressing strip.

[0009] Further, the connection method of the pressing strip on the upper half of the inner baffle, the lower half of the inner baffle, the upper half of the outer baffle, and the lower half of the outer baffle is magnetic attraction or snap connection.

[0010] The beneficial effects of the present utility model compared with the prior art are as follows:

[0011] The fan pulley protective cover involved in this solution is fully enclosed and is divided into upper and lower parts which are fastened by bolts. Using processing techniques such as welding, bending, and rolling, it has high reliability and can effectively prevent accidents. A protective net is arranged in the middle for heat dissipation. An observation port is arranged above, and a cover plate is arranged below. Without disassembly, the working state and static state of the belt and pulley can be observed.

[0012] The design of the split-type fully enclosed structure makes disassembly and assembly convenient. Without affecting the two pulleys whose levels have been adjusted, operations such as disassembly, maintenance, and replacement can be achieved. Description of the Drawings

[0013] Figure 1 It is a three-dimensional view of the fully enclosed fan pulley protective cover that is convenient for disassembly, assembly, and maintenance;

[0014] Figure 2 It is an exploded view of the fully enclosed fan pulley protective cover that is convenient for disassembly, assembly, and maintenance.

[0015] In the figure: 1. Pulley cover body; 11. Upper half of the pulley cover body; 12. Lower half of the pulley cover body; 2. Inner baffle; 21. Upper half of the inner baffle; 22. Lower half of the inner baffle; 3. Outer baffle; 31. Upper half of the outer baffle; 32. Lower half of the outer baffle; 4. Observation window; 5. Cover plate; 6. Protective net; 7. Pressing strip; 10. Long oval hole. Detailed Implementation Modes

[0016] Such as Figure 1 、 Figure 2As shown in the figure, a fully enclosed fan pulley guard that is convenient for disassembly, installation and maintenance in an embodiment of the present utility model includes a pulley cover body 1, an inner baffle 2 fixedly connected to the inner side of the pulley cover body 1, and an outer baffle 3 fixedly connected to the outer side of the pulley cover body 1. The pulley cover body 1 includes an upper half 11 of the pulley cover body and a lower half 12 of the pulley cover body that are fixedly connected by fasteners. The inner baffle 2 includes an upper half 21 of the inner baffle and a lower half 22 of the inner baffle. The upper half 21 of the inner baffle is fixed to the upper half 11 of the pulley cover body by fasteners, and the lower half 22 of the inner baffle is fixed to the lower half 12 of the pulley cover body by fasteners. The outer baffle 3 includes an upper half 31 of the outer baffle and a lower half 32 of the outer baffle. The upper half 31 of the outer baffle is fixed to the upper half 11 of the pulley cover body by fasteners, and the lower half 32 of the outer baffle is fixed to the lower half 12 of the pulley cover body by fasteners. At the same time, the upper half 31 of the outer baffle and the lower half 32 of the outer baffle are also connected by fasteners; an observation window 4 is provided on the upper half 11 of the pulley cover body, and a detachable cover plate 5 is provided on the lower half 12 of the pulley cover body; long waist holes 10 are opened on the upper half 21 of the inner baffle, the lower half 22 of the inner baffle, the upper half 31 of the outer baffle, and the lower half 32 of the outer baffle. A protective net 6 is arranged at the position of the long waist hole 10 on the upper half 21 of the inner baffle, the lower half 22 of the inner baffle, the upper half 31 of the outer baffle, and the lower half 32 of the outer baffle. The protective net 6 completely covers the corresponding long waist hole 10; the installation method of the protective net 6 on the upper half 21 of the inner baffle, the lower half 22 of the inner baffle, the upper half 31 of the outer baffle, and the lower half 32 of the outer baffle is to be pressed tightly by a pressure strip 7; the connection method of the pressure strip 7 on the upper half 21 of the inner baffle, the lower half 22 of the inner baffle, the upper half 31 of the outer baffle, and the lower half 32 of the outer baffle is magnetic attraction or snap connection.

[0017] The design of the split-type fully enclosed structure makes disassembly and installation convenient. Without affecting the two pulleys with the level already adjusted, operations such as disassembly, maintenance, and replacement can be achieved.

[0018] During specific use, for the convenience of understanding the present utility model, it is described in combination with the accompanying drawings;

[0019] The operation of a forward and backward centrifugal fan driven by a belt requires two pulleys and a set of belts. One pulley is connected to the motor, and the other pulley is connected to the fan shaft. During normal operation, the two pulleys and a set of belts are in a high-speed rotation state for a long time, which is likely to cause the bolts fixing the pulleys to fall off and the belt to fall off, further leading to wear of the fan shaft until it breaks, causing transmission failure, and possibly resulting in casualties and equipment losses.

[0020] The fan pulley guard involved in this solution is fully enclosed and is divided into upper and lower parts fastened by bolts. It uses processing techniques such as welding, bending, and rolling, with high reliability, which can effectively prevent accidents. A protective net is set in the middle for heat dissipation. An observation port is set above, and a cover plate is set below. Without disassembly, the working and stationary states of the belt and pulley can also be observed.

[0021] The design of the split-type fully enclosed structure makes disassembly and assembly convenient. Without affecting the two pulleys that have been leveled, operations such as disassembly, maintenance, and replacement can be achieved.

[0022] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fully enclosed fan pulley protective cover that is convenient for disassembly, assembly and maintenance, characterized in that: It includes a pulley cover (1), an inner baffle (2) fixedly connected to the inner side of the pulley cover (1), and an outer baffle (3) fixedly connected to the outer side of the pulley cover (1). The pulley cover (1) includes an upper half part (11) of the pulley cover and a lower half part (12) of the pulley cover that are fixedly connected by fasteners. The inner baffle (2) includes an upper half part (21) of the inner baffle and a lower half part (22) of the inner baffle. The upper half part (21) of the inner baffle is fixed on the upper half part (11) of the pulley cover by fasteners, and the lower half part (22) of the inner baffle is fixed on the lower half part (12) of the pulley cover by fasteners. The outer baffle (3) includes an upper half part (31) of the outer baffle and a lower half part (32) of the outer baffle. The upper half part (31) of the outer baffle is fixed on the upper half part (11) of the pulley cover by fasteners, and the lower half part (32) of the outer baffle is fixed on the lower half part (12) of the pulley cover by fasteners. At the same time, a connection is also formed between the upper half part (31) of the outer baffle and the lower half part (32) of the outer baffle by fasteners.

2. The fully enclosed fan pulley guard that is convenient for disassembly, assembly and maintenance according to claim 1, wherein: An observation window (4) is provided on the upper half part (11) of the pulley cover, and a detachable cover plate (5) is provided on the lower half part (12) of the pulley cover.

3. The fully enclosed fan pulley guard which is convenient for disassembly, assembly and maintenance according to claim 2, is characterized in that: Long waist holes (10) are provided on the upper half part (21) of the inner baffle, the lower half part (22) of the inner baffle, the upper half part (31) of the outer baffle, and the lower half part (32) of the outer baffle. A protective net (6) is arranged at the position of the long waist hole (10) on the upper half part (21) of the inner baffle, the lower half part (22) of the inner baffle, the upper half part (31) of the outer baffle, and the lower half part (32) of the outer baffle. The protective net (6) completely covers the corresponding long waist hole (10).

4. A fully enclosed fan pulley protective cover that is convenient for disassembly, installation and maintenance, characterized in that: The installation method of the protective net (6) on the upper half part (21) of the inner baffle, the lower half part (22) of the inner baffle, the upper half part (31) of the outer baffle, and the lower half part (32) of the outer baffle is to be pressed tightly by a pressing strip (7).

5. A fully enclosed fan pulley protective cover that is convenient for disassembly, installation and maintenance, characterized in that: The connection method of the pressing strip (7) on the upper half part (21) of the inner baffle, the lower half part (22) of the inner baffle, the upper half part (31) of the outer baffle, and the lower half part (32) of the outer baffle is magnetic attraction or snap connection.

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