CN108119408B

CN108119408B - Mounting tool for dustproof cover of fan

Info

Publication number: CN108119408B
Application number: CN201711370631.2A
Authority: CN
Inventors: 李磊; 曾向阳
Original assignee: Hangzhou Weiguang Electronic Co Ltd
Current assignee: Hangzhou Weiguang Electronic Co Ltd
Priority date: 2017-12-18
Filing date: 2017-12-18
Publication date: 2020-02-14
Anticipated expiration: 2037-12-18
Also published as: CN108119408A

Abstract

The invention provides a fan dust cover installation method and installation tool, and relates to the technical field of fan production, wherein the fan dust cover installation method comprises the following steps: the fan is suspended, the dustproof cover is placed at the opening corresponding to the fan, and the dustproof cover is pressed into the opening at the end part of the motor in the fan. The fan dust cover installation method provided by the invention alleviates the technical problem that the fan is easily damaged by being subjected to overlarge vibration when the dust cover is installed in the prior art.

Description

Mounting tool for dustproof cover of fan

Technical Field

The invention relates to the technical field of fan production, in particular to an installation and installation tool for a fan dust cover.

Background

The blower is a machine which increases the gas pressure and discharges the gas by the input mechanical energy, and is a driven fluid machine, the blower is a short form of the habit of gas compression and gas delivery machinery in China, and the blower generally comprises: a ventilator, a blower and a wind driven generator. Gas compression and gas delivery machines are machines that convert rotational mechanical energy into gas pressure energy and kinetic energy and deliver the gas out. The fan is mainly applied to ventilation in various fields of national economy such as metallurgy, petrifaction, electric power, urban rail transit, textile, ships and the like and various places. Besides the traditional application field, the method still has a great development prospect in more than 20 potential market fields such as comprehensive utilization of coal gangue, technical improvement of novel dry clinker, energy conservation and comprehensive utilization of resources in metallurgical industry and the like. The fan mainly comprises an impeller, a shell, an air inlet, a bracket, a motor, a fan shaft, a coupler, a silencer, a transmission part (bearing) and other structural components.

The fan working environment is generally severe, a large amount of dust can be brought by the airflow formed by the fan blades, the end part of the fan is provided with a casing opening, if the casing opening is not closed, external dust can enter the casing, various precise electronic components such as a circuit board are arranged inside the casing, if the electronic components contact excessive dust, faults such as short circuit, local overheating and even burning can be caused, and unnecessary loss is caused to a user.

The opening at the end part of the motor is generally closed by adopting a dustproof cover, in the prior art, the fan is usually placed on the ground, the shell is held, the dustproof cover is placed at the opening, and then the dustproof cover is hammered into the opening by a hammer; the bearing, the circuit board and the like in the motor are easily subjected to large vibration due to the double impact force of the hammer and the ground, the service life of the bearing, the circuit board and other precise components is influenced, and finally the fan is aged and damaged in advance.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a mounting tool for a dustproof cover of a fan, which is used for relieving the technical problem that the dustproof cover of the fan is easy to damage due to overlarge vibration in the prior art.

The invention provides a mounting tool for a dustproof cover of a fan, which is characterized by comprising a clamping device for clamping the fan and a pressing device for pressing the dustproof cover into an opening of the fan;

the clamping device comprises a pneumatic clamping jaw, and the pressing device comprises a pneumatic pressure head; the pneumatic clamping jaw comprises a driving part and at least two clamps arranged oppositely, the driving part is in transmission connection with the clamps, one end of each clamp far away from the driving part is detachably connected with a clamping piece with an arc-shaped cross section, and concave sides of the clamping pieces are arranged oppositely; the clamping piece can be replaced to be of different inner diameters and is used for adapting to motors of fans of different outer diameters;

the end part of the clamp far away from the driving part is provided with a limiting groove matched with the clamping piece, and the clamping piece is embedded in the limiting groove;

penetrating the clamp and the clamping piece through a fastener to relatively fix the clamping piece and the clamp;

the clamping piece comprises a connecting portion and a clamping portion, the connecting portion is detachably connected with the clamp, one end of the clamp is far away from the connecting portion and is connected with the clamping portion, and a protruding structure is arranged on the concave side of the clamping portion.

The present invention provides an installation tool, comprising: the clamping device is used for clamping the fan and the pressing device is used for pressing the dustproof cover into the opening of the air inlet machine; the clamping device is adopted to clamp the fan in a suspended state, on one hand, the fan is not subjected to impact force from the ground and is only subjected to pressure transmitted by the dust cover when the dust cover is pressed to the opening at the end part of the motor in the fan due to the suspended state of the fan, and meanwhile, the fan in the suspended state has a certain buffering process when being subjected to the pressure, so that the vibration of precision parts such as a bearing and a circuit board in the fan is smaller, the precision parts are effectively protected, the service life of the fan is prolonged, and the loss is reduced for a user; on the other hand, compare with prior art, need not go to the fan with the hand, the hand can not receive the vibrations that come from the fan, and simultaneously, the staff can not be injured by pounding by parts that hammer etc. provided pressure for the shield, has protected operating personnel's personal health effectively, has promoted operating personnel's work experience.

The invention also aims to provide a fan dust cover installation method to solve the technical problem that a fan is easy to damage due to overlarge vibration when the fan is installed with the dust cover in the prior art.

The invention provides a method for installing a dustproof cover of a fan, which comprises the following steps: the fan is suspended, the dustproof cover is placed at the opening corresponding to the fan, and the dustproof cover is pressed into the opening at the end part of the motor in the fan.

Further, the fan is grabbed and suspended by using the pneumatic clamping jaw.

Further, the circumferential side face of a motor in the fan is grasped, and the fan is suspended.

Further, a pneumatic ram is used to press the dust cap into the opening in the end of the motor in the blower.

Further, the dust cap is pressed into the opening at the end of the motor in the fan using a hydraulically driven ejector pin.

The invention provides a fan dustproof cover installation method, which comprises the steps of suspending a fan, placing a dustproof cover at an opening corresponding to the fan, and pressing the dustproof cover into an opening at the end part of a motor in the fan; because the fan is in unsettled state, when pressing the shield to the opening of motor tip in the fan, the fan can not receive the impact force that comes from ground, only receives the pressure of shield transmission, and simultaneously, the fan of unsettled state can have certain buffering process when receiving pressure, and consequently, the vibrations that precision parts such as the inside bearing of fan and circuit board received are less, have protected above-mentioned precision parts effectively, have prolonged the life of fan, have reduced the loss for the user.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a hydraulically-driven mechanical claw used in a method for installing a dust cap of a fan according to an embodiment of the present invention;

FIG. 2 is a schematic view of the hydraulically actuated gripper of FIG. 1 with the link arm and base removed;

FIG. 3 is a schematic structural diagram of a mounting tool engaged with a fan according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a clamping device of an installation tool of the present invention engaged with a blower;

fig. 5 is a schematic structural diagram of a clamp in a clamping device in an installation tool according to an embodiment of the present invention.

Icon: 1-a linker arm; 2-a base; 3-a first connecting shaft; 4-a second connecting shaft; 5-driven movable claws; 6-active movable claws; 7-a hydraulic cylinder; 8-connecting rod; 9-a first connection seat; 10-a second connecting seat; 11-a baffle plate; 12-a lifting lug; 13-a lug plate; 14-pressure head; 15-a motor; 16-fan blades; 17-a clamp; 18-a clamp; 181-connecting part; 182-a clamping part; 19-a limit groove; 20-dust cover.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The fan dust cover installation method provided by the embodiment of the invention comprises the following steps: the fan is suspended, the dustproof cover 20 is placed at the opening corresponding to the fan, and the dustproof cover 20 is pressed into the opening at the end part of the motor in the fan.

The fan dustproof cover installation method provided by the embodiment of the invention is characterized in that a fan is suspended, the dustproof cover 20 is placed at the opening corresponding to the fan, and the dustproof cover 20 is pressed into the opening at the end part of a motor in the fan; because the fan is in unsettled state, when pressing shield 20 to the opening of motor tip in the fan, the fan can not receive the impact force that comes from ground, only receives the pressure of shield 20 transmission, and simultaneously, the fan of unsettled state can have certain buffering process when receiving pressure, and consequently, the vibrations that precision parts such as the inside bearing of fan and circuit board received are less, has protected above-mentioned precision parts effectively, has prolonged the life of fan, has reduced the loss for the user.

Further, the fan is grabbed and suspended by using the pneumatic clamping jaw. Because the pneumatic clamping jaw adopts pressure gas as a driving source, the blower is not easily damaged.

Further, the fan is grabbed and suspended by using a hydraulic drive mechanical claw. Specifically, the structure of the hydraulically driven gripper is as follows:

fig. 1 is a schematic structural diagram of a hydraulically-driven mechanical claw used in a method for installing a dust cap of a fan according to an embodiment of the present invention; fig. 2 is a schematic view of the hydraulically actuated gripper of fig. 1 with the link arm and base removed. As shown in fig. 1 and 2, an embodiment of the present invention provides a hydraulically-driven mechanical gripper, including a connecting arm 1 and a clamping mechanism disposed at one end of the connecting arm 1, where the clamping mechanism includes a base 2, a first connecting shaft 3 and a second connecting shaft 4 disposed on the base 2 in parallel, a driven movable gripper 5 hinged on the first connecting shaft 3, a driving movable gripper 6 hinged on the second connecting shaft 4, a hydraulic cylinder 7 connected between the first connecting shaft 3 and the driving movable gripper 6, and a connecting rod 8 connected between the driving movable gripper 6 and the driven movable gripper 5, where the base 2 is fixedly connected to the connecting arm 1; a first connecting seat 9 is arranged on the driven movable claw 5, a second connecting seat 10 is arranged on the driving movable claw 6, two ends of a connecting rod 8 are respectively hinged to the first connecting seat 9 and the second connecting seat 10, the base end of the hydraulic cylinder 7 is hinged to the first connecting shaft 3, and the piston rod end is hinged to the second connecting seat 10; the driven movable claw 5 and the driving movable claw 6 are both provided with two parallel claw teeth, and a baffle plate 11 is connected between the claw teeth on the driven movable claw 5; a lifting lug 12 is arranged on the side wall of the base 2; one side of the base 2 has a projection 13 extending outward. It should be noted that the claw teeth of the driven movable claw 5 and the claw teeth of the driving movable claw 6 adopted in the present embodiment are both arc-shaped, and the claw tooth concave side of the driven movable claw 5 and the claw tooth concave side of the driving movable claw 6 are arranged oppositely.

The working principle of the hydraulic drive mechanical claw is as follows: the hydraulic cylinder 7 drives the second connecting seat 10 to move in the action process, so that the driving movable claw 6 rotates around the second connecting shaft 4, and meanwhile, under the action of the connecting rod 8, the driving movable claw 6 drives the driven movable claw 5 to rotate around the first connecting shaft 3 and make corresponding action, so that the grabbing and loosening actions of the mechanical claw are realized.

The side wall of the base 2 is provided with the lifting lug 12, so that the function of the mechanical claw in the working process is increased, and the maintenance is facilitated when the mechanical claw is detached; the protruding plate 13 can prevent the clamped objects from contacting the hydraulic cylinder 7 or the connecting rod 8, so that the protection effect is achieved, and meanwhile, the end parts of some clamped objects can be supported or blocked.

The driven movable claw 5 and the driving movable claw 6 are used for grabbing the circumferential side face of the motor together to suspend the motor in the air. Because the hydraulic drive mechanical claw takes pressure fluid as a pressure source, the driven movable claw 5 and the driving movable claw 6 have certain buffering performance, great damage to the motor can not be caused, and the motor can be ensured to be tightly clamped. Because the claw tooth of driven movable jaw 5 and the claw tooth of initiative movable jaw 6 all are the arc, and the concave side of the claw tooth of driven movable jaw 5 sets up with the concave side of the claw tooth of initiative movable jaw 6 relatively, the claw tooth of driven movable jaw 5 of being convenient for and the claw tooth of initiative movable jaw 6 are laminated better, and the motor is difficult for droing from between driven movable jaw 5 and the initiative movable jaw 6.

Further, the concave side of the driven movable claw 5 and the concave side of the driving movable claw 6 are both provided with anti-slip textures, so that when the dust cover 20 is pressed, the motor can be prevented from sliding or even falling relative to the concave side of the driven movable claw 5 and the claw teeth of the driving movable claw 6.

Further, the circumferential side face of a motor in the fan is grasped, and the fan is suspended. Since the opening of the motor is arranged at the end part, the periphery of the motor is grabbed, and the dustproof cover 20 at the end part is pressed, the device for grabbing the motor is not subjected to the positive impact force from the motor but only to the friction force from the motor. On one hand, the motor is ensured not to cause great damage to equipment for grabbing the motor; on the other hand, the bi-directional force of the motor device for pressing the dust cap 20 and the motor device for grasping the motor can reduce the shock to which the motor is subjected.

Further, a layer of buffer material is wound around the motor of the fan, and the buffer material can be foam, rubber or polyurethane. When pressing shield 20 into the opening of motor tip, because buffer material's cushioning effect, the equipment that is used for grabbing the motor is difficult to cause the damage to the motor, simultaneously, when pounding the opening of motor with shield 20, does not have direct contact between the equipment that is used for grabbing the motor and the motor, therefore the two can not produce direct collision, is favorable to alleviateing the vibrations of motor, is favorable to protecting the accurate part in the motor.

Further, a pneumatic ram is used to press the dust cap 20 into the opening in the end of the motor in the blower. Because the pneumatic pressure head uses pressure gas as a pressure source, the pneumatic pressure head is difficult to cause overlarge impact on the dust cover 20, thereby ensuring that the fan cannot generate larger vibration and being beneficial to protecting precise components in the motor.

Further, the dust cap 20 is pressed into the opening of the motor end in the blower using a hydraulically driven ejector pin. Because the hydraulically driven ejector pin uses pressure fluid as the pressure source, therefore, the hydraulically driven ejector pin can not cause too big impact to the shield 20 to guarantee that the fan can not produce great vibrations, be favorable to protecting the precision part in the motor.

Further, the dust cap 20 is pressed into the opening of the motor end in the blower using a rubber hammer. Because the tup of rubber hammer adopts the rubber material to make, consequently, can not cause too big impact to shield 20 to guarantee that the fan can not produce great vibrations, be favorable to protecting the accurate part in the motor.

Further, the dust cover 20 is covered with a layer of cushioning material, which may be foam, rubber, or polyurethane. When pressing shield 20 into the opening of motor tip, because buffer material's cushioning effect, shield 20 can not receive too big impact force to guarantee that the fan can not produce great vibrations, be favorable to protecting the accurate part in the motor.

Example two

The invention provides an installation tool for implementing a fan dust cover installation method, which comprises the following steps: a clamping device for clamping the fan and a pressing device for pressing the dust cover 20 into the fan opening.

The installation tool provided by the embodiment of the invention comprises: the clamping device is used for clamping the fan and the pressing device is used for pressing the dust cover 20 into the opening of the fan; the fan is clamped and suspended by the clamping device, on one hand, because the fan is in a suspended state, when the dustproof cover 20 is pressed to the opening at the end part of the motor in the fan, the fan cannot be impacted from the ground and only receives the pressure transmitted by the dustproof cover 20, and meanwhile, the fan in the suspended state can have a certain buffering process when receiving the pressure, so that the vibration of precision components such as a bearing and a circuit board in the fan is smaller, the precision components are effectively protected, the service life of the fan is prolonged, and the loss is reduced for a user; on the other hand, compare with prior art, need not go to the fan with the hand, the hand can not receive the vibrations that come from the fan, and simultaneously, the staff can not be injured by the parts that provide pressure for shield 20 such as hammer, has protected operating personnel's personal health effectively, has promoted operating personnel's work experience.

Further, the clamping device comprises a pneumatic clamping jaw, and the pressing device comprises a pneumatic pressure head.

Furthermore, the pneumatic clamping jaw comprises a driving part and at least two clamps 17 which are arranged oppositely, the driving part is in transmission connection with the clamps 17, one end of each clamp 17 far away from the driving part is detachably connected with a clamping piece 18 with an arc-shaped cross section, and concave sides of the clamping pieces 18 are arranged oppositely; the clamp 18 may be replaced with different inner diameters to accommodate motors for fans of different outer diameters.

Furthermore, a limiting groove 19 matched with the clamping piece 18 is formed in the end part, far away from the driving part, of the clamp 17, and the clamping piece 18 is embedded in the limiting groove 19; the clamp member 18 is fixed relative to the clamp member 17 by a fastener penetrating the clamp member 17 and the clamp member 18.

FIG. 4 is a schematic structural diagram of a clamping device of an installation tool of the present invention engaged with a blower; fig. 5 is a schematic structural diagram of a clamping unit in a clamping device in an installation tool according to an embodiment of the present invention. As shown in fig. 3 to 5, the blower includes a motor 15 and fan blades 16, the fan blades 16 are connected to a rotor of the motor 15 in a transmission manner, an opening is formed in an end portion of the motor 15, a dust cover 20 is placed at the opening, the number of the clamps 17 is two, the cross sections of the clamps 17 are arc-shaped, concave sides of the two clamps 17 are arranged oppositely, one end of each clamp 17, which is far away from the driving part, is provided with a limiting groove 19, one end of each clamping piece 18 is embedded into the limiting groove 19, a bolt penetrates through the clamps 17 and the clamping pieces 18, the bolt is matched with a nut to fix the clamping pieces 18 and the clamps 17 relatively, and the clamping pieces 18 are clamped on a circumferential side; the pneumatic ram includes: the pressure head 14 is in transmission connection with a telescopic component of the air compressor, one end, far away from the air compressor, of the pressure head 14 abuts against the dust cover 20, and the air compressor provides power for the pressure head 14 to press the dust cover 20 into an opening in the end portion of the motor 15. One end of the clamping piece 18 is embedded in the limiting groove 19, so that the clamping piece 18 is prevented from being separated from the clamp 17 due to the reaction force of the motor 15.

Further, as shown in fig. 5, the clamping member 18 includes a connecting portion 181 and a clamping portion 182, the connecting portion 181 is detachably connected to the clamp 17, an end of the connecting portion 181 away from the clamp 17 is connected to the clamping portion 182, and a concave side of the clamping portion 182 is provided with a convex structure. The retaining members 18 with different inner diameters of the retaining portion 182 are selected to accommodate fans 15 of different outer diameters.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes can be made without departing from the scope of the claims. The present invention includes various modifications and alterations within the scope of the claims.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The mounting tool for the dust cover of the fan is characterized by comprising a clamping device for clamping the fan and a pressing device for pressing the dust cover into an opening of the fan;

the clamping piece comprises a connecting part and a clamping part, the connecting part is detachably connected with the clamp, one end of the connecting part, which is far away from the clamp, is connected with the clamping part, and a convex structure is arranged on the concave side of the clamping part;

in the installation process of the fan dustproof cover, the fan is suspended, the dustproof cover is placed at an opening corresponding to the fan, and the dustproof cover is pressed into the opening at the end part of the motor in the fan.

2. The blower dust cap installation tool of claim 1, wherein the blower is suspended by grasping a circumferential side of a motor in the blower.

3. The blower dust cap installation tool of claim 2, wherein the pneumatic ram is used to press the dust cap into the opening in the blower at the end of the motor.