A cleaning mechanism for the emission surface of a photoelectric switch of a dumper

Abstract

The present invention discloses a cleaning mechanism for the emission surface of a photoelectric switch of a dumper, and relates to the field of photoelectric switches. The present invention comprises a housing and a mounting base. An annular air duct is provided on the inner side of the front end of the housing. A plurality of air nozzles are installed on the inner side of the annular air duct. An air nozzle is connected to the top of the annular air duct, and one side of the air nozzle is connected to an air nozzle cap via a connecting rope. An air blow pipe is provided at the upper part of the interior of the housing, and an air hole is provided at the bottom end of the air blow pipe. By providing the housing, the present invention can protect the photoelectric switch and prevent dust and debris from adhering to the emission end of the photoelectric switch. By providing the annular air duct and the air blow pipe, the annular air duct can continuously discharge air to the emission end, forming an air curtain on the surface of the emission end to prevent dust and impurities from entering. At the same time, the surface of the emission end is inclined, and the air flow gathers on the surface of the emission end and blows outward under the action of the inclined surface, thereby blowing away dust and keeping the emission end clean and tidy.

Description

Technical Field

[0001] The invention relates to the field of photoelectric switches, in particular to a cleaning mechanism for an emission surface of a photoelectric switch of a dumper. Background Art

[0002] A car dumper is a large piece of machinery used to unload bulk materials from open railway cars. This loading and unloading machine, which flips or tilts railcars to facilitate unloading, is suitable for high-volume ports and industrial sectors such as metallurgy, coal mining, and thermal power. Mines also often use small car dumpers to unload mine cars. These machines rely on photoelectric switches for control during operation. However, the environment in which they operate often contaminates the transmitters of these switches with dust and impurities, leading to misjudgments. Summary of the Invention

[0003] Based on this, the purpose of the present invention is to provide a cleaning mechanism for the emitting surface of a tipper photoelectric switch to solve the technical problem.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cleaning mechanism for the emitting surface of a photoelectric switch of a tipping machine, comprising a shell and a mounting seat, a ring-shaped air duct is provided on the inner side of the front end of the shell, a plurality of air nozzles are installed on the inner side of the ring-shaped air duct, an air nozzle is connected to the top of the ring-shaped air duct, and an air nozzle cap is connected to one side of the air nozzle by a connecting rope, an air blowing pipe is provided on the upper part of the interior of the shell, an air hole is provided at the bottom end of the air blowing pipe, a photoelectric switch is installed in the shell through a mounting plate, and bottom heat dissipation holes and back heat dissipation holes are respectively provided on the shell.

[0005] By adopting the above technical solution, the annular air duct surrounds the transmitting end of the photoelectric switch as the center. The annular air duct is connected to the air source through the air nozzle, and the gas is ejected through the air nozzle to form an air curtain at the transmitting end, thereby preventing dust and impurities from being adsorbed. The transmitting end can always be kept clean, making the photoelectric switch more accurate.

[0006] Furthermore, a mounting seat is provided below the shell, the mounting seat is connected to a bracket via bolts, and the bracket is movably connected to the mounting seat, and the shell is fixed to the top of the bracket.

[0007] By adopting the above technical solution, the shell can be moved through the bracket and the mounting base, and the bracket and the mounting base are fixed by bolts. Therefore, when the bolts are loosened, the angle of the bracket can be adjusted, and workers can adjust the bracket to a suitable angle according to on-site needs, and then adjust the angle of the shell.

[0008] Furthermore, a solenoid valve is provided between the annular air duct and the air blowing pipe, and the solenoid valve controls the communication between the annular air duct and the air blowing pipe.

[0009] By adopting the above technical solution, when the solenoid valve is opened, the air source can blow air to the annular air duct and the air blowing pipe at the same time. The airflow in the annular air duct can blow air to the transmitting end, and the air blowing pipe can blow air to the photoelectric switch body, carrying the heat generated by its operation and discharging it through the ground heat dissipation holes and the back heat dissipation holes, which is beneficial to the working environment of the photoelectric switch.

[0010] Furthermore, a back cover is provided on the back of the housing, which can be removed, and the back heat dissipation holes are located on the back cover. The diameter of the back cover is larger than the maximum diameter of the photoelectric switch.

[0011] By adopting the above technical solution, when the photoelectric switch needs to be installed, it is only necessary to open the back cover, insert the transmitting end of the photoelectric switch into the through hole on the mounting plate, and then close the back cover so that the back cover presses the end of the photoelectric switch to stabilize it.

[0012] Furthermore, there are a plurality of air nozzles, and the plurality of air nozzles are evenly arranged in a circular array on the annular air duct, and the air nozzles are communicated with the annular air duct.

[0013] Furthermore, the photoelectric switch is located directly below the air blowing tube, and the back of the photoelectric switch is in conflict with the back cover.

[0014] Furthermore, a through hole is provided on the mounting plate, the front end of the photoelectric switch is the emitting end, and the emitting end passes through the through hole on the mounting base, the emitting end is adapted to the through hole, the surface of the emitting end is an inclined surface, and the emitting end is located at the center of multiple air nozzles.

[0015] In summary, the present invention mainly has the following beneficial effects:

[0016] The present invention can protect the photoelectric switch by providing a housing, preventing dust and debris from adhering to the transmitting end of the photoelectric switch. By providing an annular air duct and an air blowing pipe, the annular air duct can continuously discharge air to the transmitting end, forming an air curtain on the surface of the transmitting end to prevent dust and impurities from entering. At the same time, the surface of the transmitting end is inclined, and the air flow gathers on the surface of the transmitting end and blows outward under the action of the inclined surface, thereby blowing away dust and keeping the transmitting end clean and tidy.

[0017] The present invention arranges an air blowing pipe above the interior of the shell, and the air blowing pipe is connected to the annular air duct through an electromagnetic valve to control the state of communication with the annular air duct, and the air nozzle is connected to the external air source. During normal use, the electromagnetic valve is closed to allow air to blow toward the transmitting end through the annular air duct and the air nozzle. After a period of use, the electromagnetic valve is opened, and air enters the air blowing pipe and blows toward the photoelectric switch through the air blowing hole, so that the heat generated by the photoelectric switch is carried away by the air flow and discharged through the heat dissipation holes on the bottom surface and the heat dissipation holes on the back surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the housing of the present invention;

[0019] Figure 2 Schematic diagram of the cross-sectional structure of the shell of the present invention;

[0020] Figure 3 It is a schematic diagram of the local structure of the housing of the present invention;

[0021] Figure 4 This is a schematic diagram of the partial structure of the photoelectric switch of the present invention;

[0022] Figure 5 It is a schematic diagram of the side cross-sectional structure of the annular air duct of the present invention.

[0023] In the figure: 1. Housing; 101. Cooling holes on the bottom; 102. Cooling holes on the back; 103. Back cover; 2. Air nozzle; 201. Air nozzle cap; 3. Bracket; 4. Mounting base; 5. Annular air duct; 501. Air nozzle; 6. Air blow pipe; 601. Air blow hole; 7. Photoelectric switch; 701. Transmitter; 702. Inclined surface; 8. Solenoid valve; 9. Mounting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0025] The following describes an embodiment of the present invention based on its overall structure.

[0026] A cleaning mechanism for the emission surface of a tipper photoelectric switch, such as Figure 1 、 2 , 3, 4, 5, comprising a housing 1 and a mounting base 4, wherein an annular air duct 5 is provided on the inner side of the front end of the housing 1;

[0027] Specifically, a plurality of air nozzles 501 are installed on the inner side of the annular air duct 5. There are multiple air nozzles 501, and the multiple air nozzles 501 are evenly arranged in an annular array on the annular air duct 5. The air nozzles 501 are connected to the annular air duct 5. The top of the annular air duct 5 is connected to the air nozzle 2. One side of the air nozzle 2 is connected to the air nozzle cap 201 through a connecting rope. An air blowing pipe 6 is provided on the upper part of the interior of the shell 1. The bottom end of the air blowing pipe 6 is provided with an air hole 601. A photoelectric switch 7 is installed in the shell 1 through a mounting plate 9.

[0028] Specifically, the surface of the transmitting end 701 is an inclined surface 702, and the transmitting end 701 is located at the center of multiple air nozzles 501. The shell 1 is respectively provided with bottom heat dissipation holes 101 and back heat dissipation holes 102. The annular air duct 5 surrounds the transmitting end of the photoelectric switch 7 as the center of the circle. The annular air duct 5 is connected to the air source through the air nozzle 2 and ejects gas through the air nozzle 501 to form an air curtain at the transmitting end 701 to prevent dust and impurities from being adsorbed, so that the transmitting end 701 can always be kept clean, making the photoelectric switch more accurate.

[0029] See also Figure 1 、 2 , 3, 5, a mounting base 4 is provided at the bottom of the shell 1, the mounting base 4 is connected to the bracket 3 by bolts, and the bracket 3 is movably connected to the mounting base 4, the top of the bracket 3 is fixed with the shell 1, the shell 1 can be movable with the mounting base 4 through the bracket 3, and the bracket 3 and the mounting base 4 are fixed by bolts. Therefore, when the bolts are loosened, the angle of the bracket 3 can be adjusted, and the worker can adjust the bracket 3 to a suitable angle according to the needs of the site, and then adjust the angle of the shell 1.

[0030] See also Figure 2 、 3 , 4, 5, an electromagnetic valve 8 is provided between the annular air duct 5 and the air blowing pipe 6, and the electromagnetic valve 8 controls the connection between the annular air duct 5 and the air blowing pipe 6. The photoelectric switch 7 is located directly below the air blowing pipe 6. When the electromagnetic valve 8 is opened, the air source can blow air to the annular air duct 5 and the air blowing pipe 6 at the same time. The airflow in the annular air duct 5 can blow air to the transmitting end 701, and the air blowing pipe 6 can blow air to the photoelectric switch 7 body, carrying the heat generated by its work and discharging it through the ground heat dissipation holes and the back heat dissipation holes, which is beneficial to the working environment of the photoelectric switch 7.

[0031] See also Figure 1 、 2 , 3, 4, 5, a through hole is provided on the mounting plate 9, the front end of the photoelectric switch 7 is the transmitting end, and the transmitting end passes through the through hole on the mounting base 4, the transmitting end 701 is adapted to the through hole, the back of the housing 1 is disassembled and provided with a back cover 103, and the back heat dissipation hole 102 is located on the back cover 103, the diameter of the back cover 103 is larger than the maximum diameter of the photoelectric switch 7, and the back of the photoelectric switch 7 conflicts with the back cover 103. When the photoelectric switch 7 needs to be installed, it is only necessary to open the back cover 103, insert the transmitting end 701 of the photoelectric switch 7, and insert it into the through hole on the mounting plate, and then close the back cover 103, so that the back cover 103 presses the end of the photoelectric switch 7 to stabilize it.

[0032] The implementation principle of this embodiment is as follows: first, the housing 1 is mounted on the tipper through the mounting base 4, and the power is turned on. At the same time, the air source is connected through the air nozzle 2, and the air nozzle 2 is connected to the external air source;

[0033] During normal use, the solenoid valve 8 is closed, and the air flow passes through the annular air duct 5 and the air nozzle 501 to blow air to the launch end 701, forming an air curtain on the surface of the launch end 701 to prevent dust and impurities from entering. At the same time, the surface of the launch end 701 is an inclined surface 702, and the air flow gathers on the surface of the launch end 701 and blows outward under the action of the inclined surface 702, thereby blowing away the dust and keeping the launch end clean and tidy.

[0034] After a period of use, the solenoid valve 8 is opened, and air flows into the air pipe 6 and blows air to the photoelectric switch 7 through the air hole 601, so that the heat generated by the photoelectric switch 7 is taken away by the air flow and discharged through the bottom heat dissipation holes 101 and the back heat dissipation holes 102.

[0035] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A cleaning mechanism for the emission surface of a photoelectric switch of a dumper, comprising a housing (1) and a mounting seat (4), characterized in that: An annular air duct (5) is provided on the inner side of the front end of the housing (1), and a plurality of air nozzles (501) are installed on the inner side of the annular air duct (5). The top of the annular air duct (5) is connected to an air nozzle (2), and one side of the air nozzle (2) is connected to an air nozzle cap (201) via a connecting rope. An air blowing pipe (6) is provided on the upper part of the interior of the housing (1), and an air blowing hole (601) is provided at the bottom end of the air blowing pipe (6). A photoelectric switch (7) is installed in the housing (1) via a mounting plate (9). The housing (1) is provided with bottom heat dissipation holes (101) and back heat dissipation holes (102). A solenoid valve (8) is provided between the annular air duct (5) and the air blowing pipe (6). The solenoid valve (8) controls the annular air duct (5) to communicate with the air blowing pipe (6). The front end of the photoelectric switch (7) is a transmitting end. During normal use, the solenoid valve (8) is closed, so that air flows through the annular air duct (5) and the air nozzle (501) to blow air to the transmitting end. After a period of use, the solenoid valve (8) is opened, and air flows into the air blowing pipe (6) and dissipates heat for the photoelectric switch (7) through the air blowing hole (601).

2. The cleaning mechanism for the emission surface of a photoelectric switch of a dumper according to claim 1, characterized in that: A mounting seat (4) is provided below the housing (1), the mounting seat (4) is connected to a bracket (3) via bolts, and the bracket (3) is movably connected to the mounting seat (4), and the housing (1) is fixed to the top of the bracket (3).

3. The cleaning mechanism for the emission surface of a car dumper photoelectric switch according to claim 1, characterized in that: The back of the housing (1) is disassembled and provided with a back cover (103), and the back heat dissipation holes (102) are located on the back cover (103). The diameter of the back cover (103) is larger than the maximum diameter of the photoelectric switch (7).

4. The cleaning mechanism for the emission surface of a photoelectric switch of a dumper according to claim 1, characterized in that: A plurality of the air nozzles (501) are provided, and the plurality of air nozzles (501) are evenly arranged in a circular array on the annular air duct (5), and the air nozzles (501) are in communication with the annular air duct (5).

5. The cleaning mechanism for the emission surface of a photoelectric switch of a dumper according to claim 1, characterized in that: The photoelectric switch (7) is located directly below the air blowing tube (6), and the back of the photoelectric switch (7) is in conflict with the back cover (103).

6. The cleaning mechanism for the emission surface of a car dumper photoelectric switch according to claim 1, characterized in that: A through hole is provided on the mounting plate (9), the launch end passes through the through hole on the mounting seat (4), the launch end (701) is adapted to the through hole, the surface of the launch end (701) is an inclined surface (702), and the launch end (701) is located at the center of the plurality of air jet nozzles (501).

Images