CN218937741U

CN218937741U - Limit switch's life testing arrangement

Info

Publication number: CN218937741U
Application number: CN202222941530.9U
Authority: CN
Inventors: 殷雄; 殷浩淋; 朱俊
Original assignee: Songrui Electromechanical Technology Shanghai Co ltd
Current assignee: Songrui Electromechanical Technology Shanghai Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-04-28
Anticipated expiration: 2032-11-04

Abstract

The utility model provides a service life testing device of a limit switch, which comprises: the motor is arranged on the base, the motor is electrically connected with a power supply, the speed reducer is connected with an output shaft of the motor through a coupler, and an output end of the speed reducer is connected with a rotating shaft; the protective shell is arranged on the base in a covering manner, the top of the rotating shaft is exposed out of the top of the protective shell, the protective shell is provided with a first side face, a second side face, a third side face and a fourth side face which are sequentially connected, and mounting plates for mounting limit switches are arranged on the second side face, the third side face and the fourth side face; the counter is used for recording the disconnection times of the limit switch and is electrically connected with the limit switch, a display screen of the counter is embedded on the first side surface, the counter is electrically connected with the limit switch, and one end of a testing rod which is driven by a power supply to rotate along with the rotating shaft is fixedly sleeved on the top of the rotating shaft; during the test, the limit switch that awaits measuring is installed in the mounting panel, and is used for cooperating the test rod to rotate round toggle limit switch disconnection once's contact and stretches out the protective housing top in the test procedure.

Description

Limit switch's life testing arrangement

Technical Field

The utility model relates to the field of limit switch testing devices, in particular to a service life testing device of a limit switch.

Background

The limit switch is also called a travel switch or a position switch, and is a common small-current master control electric appliance. The contact of the production mechanical moving part is enabled to act by utilizing the collision of the production mechanical moving part to realize the connection or disconnection of the control circuit, so that a certain control purpose is achieved. Typically, such switches are used to limit the position or travel of the machine's movement, such that the machine automatically stops, reverses direction, shifts, or reciprocates automatically at a certain position or travel.

In the actual use process, the limit switch has an important function in ensuring the normal operation of a mechanical device or a system, and the prior limit switch is replaced only when faults occur in the use process, so that the use of equipment is affected, and the normal operation of the equipment is further affected.

In order to solve the technical problems, the utility model provides a service life testing device of a limit switch.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a service life testing device of a limit switch.

A limit switch's life testing arrangement includes: the device comprises a driving device, a test rod, a counter, a base and a protective shell;

the driving device comprises a motor and a speed reducer, the motor is arranged on the base, the motor is electrically connected with a power supply, the speed reducer is connected with an output shaft of the motor through a coupler, and an output end of the speed reducer is connected with a rotating shaft;

the protective shell is arranged on the base in a covering manner, the top of the rotating shaft is exposed out of the top of the protective shell, the protective shell is provided with a first side face, a second side face, a third side face and a fourth side face which are sequentially connected, and mounting plates for mounting limit switches are arranged on the second side face, the third side face and the fourth side face;

the counter is used for recording the disconnection times of the limit switch and is electrically connected with the limit switch, a display screen of the counter is embedded on the first side surface, and the counter is electrically connected with the limit switch and is electrically connected with a power supply;

one end of the test rod which rotates along with the rotating shaft is fixedly sleeved at the top of the rotating shaft;

during testing, the limit switch to be tested is installed on the mounting plate, and the contact used for being matched with the test rod to rotate for one circle to stir the limit switch to be disconnected once stretches out of the top of the protective shell in the testing process.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the motor is characterized by further comprising a speed regulator, wherein the speed regulator is arranged on the first side face and is electrically connected with the motor, and a speed regulating knob is arranged on the speed regulator.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the first side is provided with a motor switch, and the motor switch is connected between the power supply and the motor through a wire.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the mounting plate comprises a fixing plate and a connecting plate;

the fixed plate is provided with a fixed hole, the connecting plate is provided with a mounting hole for mounting the limit switch, and the connecting plate is fixedly connected with the fixed plate;

the top of protective housing is followed first side, second side and third side are extended respectively and are had a suspension board, be equipped with on the suspension board and be used for cooperating the fixed orifices passes through bolt fixed connection's connecting hole.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: and mounting plates are arranged on the second side face, the third side face and the fourth side face.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the second side is provided with a power supply connecting seat which is used for connecting an external power supply through a wire.

On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the side of the test rod is of an arc-shaped structure.

Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

according to the technical scheme, the motor drives the test rod to rotate, the rotating test rod can stir the limit switch to turn off, and the counter records the turn-off times of the limit switch.

The speed regulator in this application can real-time regulation motor's slew rate for carry out the regulation of test rate to the limit switch of different models, improve this application testing arrangement's suitability.

The mounting plates are arranged on the second side face, the third side face and the fourth side face, so that a plurality of limit switches can be tested simultaneously in the actual use process, and the testing efficiency is improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a perspective view of the overall structure of the present application;

FIG. 2 is a schematic front view of the overall structure of the present application;

FIG. 3 is a schematic side view of the overall structure of the present application;

fig. 4 is a perspective view illustrating a specific example of a limit switch of the present application.

In the figure: 1. a base; 2. a first side; 3. a second side; 4. a rotating shaft; 5. a test rod; 6. a speed governor; 7. a speed regulating knob; 8. a motor switch; 9. a counter; 10. a power supply connecting seat; 11. a mounting plate; 12. a fixing plate; 13. a connecting plate; 14. a mounting hole; 15. a hanging plate; 20. a limit switch; 21. a contact.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in the embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be realized without these technical details and various changes and modifications based on the following embodiments.

For a better illustration of the present utility model, the present utility model will be described in detail below with reference to fig. 1-4.

Referring to fig. 1, a life testing device for a limit switch includes: the device comprises a driving device, a test rod 5, a counter 9, a base 1 and a protective shell; the driving device comprises a motor and a speed reducer, the motor is arranged on the base 1, the motor is electrically connected with a power supply, the speed reducer is connected with an output shaft of the motor through a coupler, and an output end of the speed reducer is connected with the rotating shaft 4; the protective shell is arranged on the base 1 in a covering manner, the top of the rotating shaft 4 is exposed out of the top of the protective shell, the protective shell is provided with a first side face 2, a second side face 3, a third side face and a fourth side face which are sequentially connected, and mounting plates 11 for mounting limit switches 20 are arranged on the second side face 3, the third side face and the fourth side face; the counter 9 for recording the disconnection times of the limit switch 20 is electrically connected with the limit switch 20, the display screen of the counter 9 is embedded on the first side surface 2, and the counter 9 and the limit switch 20 are electrically connected with a power supply; one end of a test rod 5 which rotates along with the rotating shaft 4 is fixedly sleeved on the top of the rotating shaft 4; during testing, the limit switch 20 to be tested is mounted on the mounting plate 11, and the contact 21 for turning the limit switch 20 once in cooperation with the test rod 5 in a circle during testing extends out of the top of the protective shell.

In the actual use process, the limit switch 20 is fixed on the mounting plate 11 at first, then the mounting plate 11 with the limit switch 20 is fixed on any one of the second side 3, the third side and the fourth side, the motor is started, the motor drives the rotating shaft 4 to rotate through the speed reducer, the test rod 5 on the rotating shaft 4 rotates along with the rotating shaft 4, the test rod 5 toggles the limit switch 20 on one side every time in the rotating process, the limit switch 20 is powered off once, the counter 9 records the limit switch 20 once, the test rod 5 continuously rotates under the driving of the motor, the counter 9 records the continuous change of the limit switch 20, when the number on the counter 9 is not increased any more or the number on the counter 9 is discontinuously increased, the fault of the limit switch 20 is indicated, and the service life of the limit switch 20 is obtained. According to the technical scheme, the motor drives the test rod 5 to rotate, the rotating test rod 5 can wave the limit switch 20 to cut off the power, the counter 9 records the power-off times of the limit switch 20, and the test device is simple in structure, safe and convenient to test and can accurately test the service life of the limit switch 20.

Referring to fig. 4, in a specific example of the limit switch 20 of the present application, in this embodiment, a threaded hole bolt is disposed at the back of the limit switch 20, and passes through a fixing hole and a threaded hole to fix the limit switch 20 on the mounting board 11, and at this time, the contact 21 extends out of the top of the protective shell, so that the contact 21 is toggled once every time the test rod 5 rotates for one turn, and then one-time use detection of the limit switch 20 is completed. It should be noted that, in other embodiments, the external test board may be fixed, the limit switch 20 is mounted on the test board, and the number of the limit switches 20 is increased. The installation of the limit switch 20 is not particularly limited.

Referring to fig. 1, the present application further includes a speed regulator 6, where the speed regulator 6 is mounted on the first side 2, the speed regulator 6 is electrically connected to the motor, and the speed regulator 6 has a speed regulating knob 7 thereon. The first side 2 in this embodiment is provided with a motor switch 8, and the motor switch 8 is connected between a power supply and a motor through a wire; the rotation speed of the motor can be adjusted by screwing the speed adjusting knob 7. The speed regulator 6 in the application can real-time adjustment motor's slew rate for carry out the regulation of test rate to limit switch 20 of different models, improve the suitability of this application testing arrangement.

Referring to fig. 1 and 3, a mounting plate 11 includes a fixing plate 12 and a connecting plate 13; the fixed plate 12 is provided with a fixed hole, the connecting plate 13 is provided with a mounting hole 14 for mounting the limit switch 20, and the connecting plate 13 is fixedly connected with the fixed plate 12; the top of protective housing is followed first side 2, second side 3 and is extended respectively with the third side and is had a suspension board 15, is equipped with the connecting hole that is used for cooperation fixed orifices through bolt fixed connection on the suspension board 15.

In this embodiment, the second side 3, the third side and the fourth side are each provided with a mounting plate 11. In detail, in the present application, each limit switch 20 is matched with one counter 9, and the counter 9 is mounted on the first side surface 2, so that in actual use, a plurality of limit switches 20 can be tested at the same time, and the test efficiency is improved. Referring to fig. 2 specifically, in this embodiment, the number of counters 9 is six, and six limit switches 20 can be controlled to perform life detection at the same time, but the technical solution of the present application does not limit the number of counters 9, and in other embodiments, the counters are installed according to requirements.

Referring to fig. 1, a power connection socket 10 is provided on the second side 3 of the present application for connecting an external power source through a wire. In other embodiments, a charging power source is provided in the protective housing, and a charging socket is provided on the side of the protective housing. It should be noted that the kind and nature of the power supply is not limited in this application.

Referring to fig. 1, the side of the test lever 5 in this embodiment has an arc-shaped structure. In the actual use process, the arc-shaped side surface of the test rod 5 can enable the touch of the toggle limit switch 20 to be smoother, and the accuracy of the actual test is improved.

Specific embodiments of the present utility model have been described above. It is to be understood that the utility model is not limited to the specific embodiments described above, and that various changes or modifications or combinations of one or more of the above-described embodiments may be made by those skilled in the art without affecting the spirit of the utility model, within the scope of the claims. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The utility model provides a limit switch's life testing arrangement which characterized in that includes: the device comprises a driving device, a test rod, a counter, a base and a protective shell;

2. The life testing device of claim 1, further comprising a speed governor electrically connected to the motor, the speed governor mounted on the first side and having a speed governor knob thereon.

3. The life testing device of claim 1, wherein the first side is provided with a motor switch, and the motor switch is connected between the power source and the motor through a wire.

4. The life testing device of claim 1, wherein the mounting plate comprises a fixed plate and a connecting plate;

5. The life testing device of claim 1, wherein the second side, the third side and the fourth side are each provided with mounting plates.

6. The life testing device of claim 1, wherein the second side is provided with a power connection base for connecting an external power source through a wire.

7. The life testing device of claim 1, wherein the side of the test lever is of an arcuate configuration.