CN112902735A

CN112902735A - Electric turnover mechanism for cleaning device of heat exchanger in indirect cooling tower

Info

Publication number: CN112902735A
Application number: CN202110174825.5A
Authority: CN
Inventors: 蔡敬卫; 吴卫峰; 戴路明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-06-04

Abstract

The invention discloses an electric turnover mechanism of a cleaning device of a heat exchanger in an indirect cooling tower, which comprises a motor, a rotating shaft, a small chain wheel and a large chain wheel, wherein an output shaft of the motor is connected with the small chain wheel; the small chain wheel is arranged on the motor, the large chain wheel is arranged on the rotating shaft, and the small chain wheel drives the large chain wheel to rotate through the chain, so that the rotating shaft is driven to rotate; during the use, will spray the water stand and fix respectively on the connecting plate at rotation axis both ends, the connecting plate passes through hexagon socket head cap screw and fixes at the both ends of rotation axis, through corotation or the reversal of motor, can drive the rotation axis and drive the upset of spraying the water stand, and control is convenient, and the upset stroke is short, can reduce the interval cooling tower radiator bottom greatly and wash the blind area, washs the blind area and can shorten more than 1 meter.

Description

Electric turnover mechanism for cleaning device of heat exchanger in indirect cooling tower

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to an electric turnover mechanism for a cleaning device of a heat exchanger in an indirect cooling tower.

Background

The conventional indirect cooling tower cleaning mode is that a cleaning trolley is connected with a cleaning spray head to clean a cooling triangle of the indirect cooling tower, and the cleaning spray head is arranged on a water spray frame; the cleaning trolley can realize lifting motion, and the water spraying frame can realize overturning to clean the tube bundle of the indirect cooling tower. In the prior art, the water spraying frame is overturned mechanically by mainly propping a limiting plate by an electric push rod, and the error of the rotation of the water spraying frame by 90 degrees is higher due to the adoption of the electric push rod.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an electric turnover mechanism for a cleaning device of a heat exchanger in an indirect cooling tower.

The technical scheme adopted by the invention is as follows:

electric turnover mechanism of heat exchanger belt cleaning device in indirect cooling tower, including motor, rotation axis, little sprocket and big sprocket, the output shaft and the little sprocket of motor are connected, big sprocket fixed mounting just is connected with little sprocket through the chain on the rotation axis, installs the connecting plate that is used for being connected with the water spray frame at the both ends of rotation axis.

The electric walking trolley is characterized by further comprising a lifting walking trolley base, the rotating shaft is installed on the walking trolley base through a bearing with a seat, and the motor is fixed on the lifting walking trolley base.

Further, fixed limit switch that is equipped with on the lift walking dolly base, be equipped with first limiting plate and second limiting plate corresponding to limit switch on the rotation axis, the contained angle between first limiting plate and the second limiting plate is 90.

Furthermore, a plurality of lifting guide wheels are arranged along the lifting walking trolley base at vertical intervals.

Further, the motor is a worm gear speed reducer.

Further, the connecting plates are fixed at two ends of the rotating shaft through hexagon socket head cap screws.

Further, the first limiting plate and the second limiting plate are fixed on the rotating shaft in a welding mode.

The controller receives a feedback signal of the limit switch and controls the motor to rotate forwards or backwards according to the feedback signal.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of an electric turnover mechanism of a cleaning device for a heat exchanger in an indirect cooling tower provided in an embodiment of the present application;

FIG. 2 is a bottom view of FIG. 1;

fig. 3 is a right side view of fig. 1.

Wherein, the rotary shaft 1, the connecting plate 2, the belt seat type bearing 3, the big chain wheel 4, the lifting walking trolley base 5, the motor 6, the small chain wheel 7, the lifting guide wheel 8 and the limit switch 9.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

Referring to fig. 1 to 3, the electric turnover mechanism of the cleaning device for the heat exchanger in the indirect cooling tower comprises a motor 6, a rotating shaft 1, a small chain wheel 7 and a large chain wheel 4, wherein an output shaft of the motor 6 is connected with the small chain wheel 7, the large chain wheel 4 is fixedly installed on the rotating shaft 1 and is connected with the small chain wheel 7 through a chain, and connecting plates 2 used for being connected with a water spray frame are installed at two ends of the rotating shaft 1.

According to the electric power tool, the small chain wheel 7 is arranged on the motor 6, the large chain wheel 4 is arranged on the rotating shaft 1, and the small chain wheel 7 drives the large chain wheel 4 to rotate through the chain, so that the rotating shaft 1 is driven to rotate; during the use, will spray the water stand and fix respectively on the connecting plate 2 at rotation axis 1 both ends, connecting plate 2 passes through hexagon socket head cap screw and fixes at rotation axis 1's both ends, through the corotation or the reversal of motor 6, can drive rotation axis 1 and drive the upset of spraying water stand, and control is convenient, and the upset stroke is short, can reduce the indirect cooling tower radiator bottom greatly and wash the blind area, washs the blind area and can shorten more than 1 meter.

Preferably, still include lift walking dolly base 5, rotation axis 1 is installed on the walking dolly base through taking pedestal bearing 3, and motor 6 is fixed on lift walking dolly base 5. The lifting walking trolley is arranged on the lifting walking trolley base 5 and drives the lifting walking trolley base 5 to move up and down, so that the rotating shaft 1 and the water spraying frame are driven to move up and down.

Fixed limit switch 9 that is equipped with on lift walking dolly base 5, be equipped with first limiting plate and second limiting plate corresponding to limit switch 9 on the rotation axis 1, the contained angle between first limiting plate and the second limiting plate is 90.

First limiting plate and second limiting plate accessible welded mode are fixed in the periphery of rotation axis 1, and limit switch 9 is preferred in order can be touchd to the size of first limiting plate and second limiting plate.

Limit switch 9 realizes the detection to rotation axis 1 rotation angle through touching first limiting plate and second limiting plate to guarantee that rotation axis 1 can rotate between 0 ~ 90.

The application can also comprise a controller, the input end of which is connected with the limit switch 9, and the output end of which is connected with the motor 6. The limit switch 9 carries out real-time detection to rotation angle of the rotating shaft 1, when the rotation angle of the rotating shaft touches the first limit plate or the second limit plate, a detection signal is fed back to the controller, the controller controls the motor 6 to rotate forwards or backwards or stop according to the signal, so that the water spraying frame is driven to overturn and reset, the water spraying frame can automatically stop when reaching the position, and automatic control of overturning of the water spraying frame is realized.

The motor 6 can adopt a worm gear speed reducer, the small chain wheel 7 and the large chain wheel 4 are on the same straight line, and the small chain wheel 7 is connected with the large chain wheel 4 through a chain to drive the large chain wheel 4 to rotate. The diameter of the small chain wheel 7 is smaller than that of the large chain wheel 4, and the small chain wheel 7 drives the large chain wheel 4 to rotate, so that the speed reduction effect is achieved.

A plurality of lifting guide wheels 8 are arranged along the lifting walking trolley base 5 at vertical intervals. When in use, the lifting guide wheel 8 is matched with the guide rail of the cleaning frame to play a role in guiding.

The operation sequence is as follows: 1. after the water spraying frame is installed and debugged, the manual button is switched, the overturning/resetting button is turned on to realize the overturning-resetting of the water spraying frame, and the water spraying frame is automatically stopped when reaching the position.

When the cleaning device walks to the center of the cooling triangle from left to right, the lifting trolley ascends, the turnover shaft turns over to enable the water spraying frame to be in a position parallel to the tube bundle, and then the trolley ascends. When the trolley ascends to the upper limit position and then descends, and after the trolley descends to the lower limit position and the electric ball valve is completely closed, the overturning motor 6 drives the overturning shaft to realize the overturning of the water spraying frame, and the position is limited to the position vertical to the pipe bundle, so that the cleaning device can not walk smoothly left and right.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. Electric turnover mechanism of heat exchanger cleaning device in indirect cooling tower, its characterized in that, including motor (6), rotation axis (1), little sprocket (7) and big sprocket (4), the output shaft and the little sprocket (7) of motor (6) are connected, big sprocket (4) fixed mounting is on rotation axis (1) and is connected with little sprocket (7) through the chain, installs connecting plate (2) that are used for being connected with the water spray frame at the both ends of rotation axis (1).

2. The electric turnover mechanism of the cleaning device for the heat exchanger in the indirect cooling tower as claimed in claim 1, further comprising a lifting traveling trolley base (5), wherein the rotating shaft (1) is mounted on the traveling trolley base through a bearing (3) with a seat, and the motor (6) is fixed on the lifting traveling trolley base (5).

3. The electric turnover mechanism for the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 2, wherein a limit switch (9) is fixedly arranged on the base (5) of the lifting traveling trolley, a first limit plate and a second limit plate are arranged on the rotating shaft (1) corresponding to the limit switch (9), and an included angle between the first limit plate and the second limit plate is 90 °.

4. The electric turnover mechanism for the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 2, wherein a plurality of lifting guide wheels (8) are vertically arranged along the lifting travelling trolley base (5) at intervals.

5. The electric turnover mechanism for the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 1, wherein the motor (6) is a worm gear reducer.

6. The electric turnover mechanism for the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 1, wherein the connecting plate (2) is fixed at two ends of the rotating shaft (1) through hexagon socket head cap screws.

7. The electric turnover mechanism of the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 3, wherein the first limiting plate and the second limiting plate are fixed on the rotating shaft (1) by welding.

8. The electric turnover mechanism for the cleaning device of the heat exchanger in the indirect cooling tower as claimed in claim 3, further comprising a controller, wherein the input end of the controller is connected with the limit switch (9), the output end of the controller is connected with the motor (6), the controller receives a feedback signal of the limit switch (9), and controls the motor (6) to rotate forwards or backwards according to the feedback signal.