CN219570833U - Belt transmission slip detection device of press machine - Google Patents

Abstract

The utility model discloses a belt transmission slip detection device of a press machine, which comprises the following components; the device comprises a driving motor, an induction block, a detection switch mounting bracket and a PLC controller; the driving motor selects a motor with a built-in rotary encoder, the output end of the driving motor is connected with the input end of the PLC, a small belt pulley is fixedly installed on a rotating shaft of the driving motor and connected with a flywheel installed on a beam through a belt, the sensing block is fixedly installed on one side of the flywheel, the detection switch and the sensing block are correspondingly arranged, and the detection switch is fixedly installed on the detection switch installation support. The belt transmission slip detection device for the press machine, which is designed by the utility model, can rapidly and simply detect whether the belt slips, has a relatively simple structure, is convenient to install and debug, has lower cost and higher reliability. Meanwhile, the detection device can be also applied to other transmission mechanisms.

Description

Belt transmission slip detection device of press machine

Technical Field

The utility model relates to the technical field of auxiliary devices of mechanical presses, in particular to a belt transmission slip detection device of a press.

Background

The mechanical press is a forging press which converts a rotational motion of a motor into a linear reciprocating motion of a slide by a crank slide mechanism and performs a forming process on a billet.

Chinese patent publication (bulletin) number CN206417549U discloses a belt slip detection device, which comprises a bracket, a sensor fixed on the bracket, and an induction component arranged on the end surface of a belt transmission roller, wherein a gap is formed between the sensor and the induction component, the sensor can sense whether the induction component slips or not to detect the belt, and the distance between the sensor and the induction component can be adjusted.

The transmission part of the general mechanical press is provided with one-stage belt transmission and two-stage gear transmission, and the driving motor drives the small belt pulley to drive the flywheel and the gear structure inside the cross beam to move through the belt. The friction type belt transmission has the characteristics of stable transmission, buffering and absorbing vibration, easy maintenance and the like, but is easy to slip under the condition of belt looseness or heavy load. Belt slip will reduce transmission efficiency and exacerbate belt wear reducing belt life. Because the beam part is higher, and the flywheel and the belt are generally provided with protective covers, the running condition of the belt is difficult to observe by naked eyes, and whether the belt slips or not can be judged only by other related data or phenomena. In order to solve the problems, the belt transmission slip detection device of the press machine is specially designed.

Disclosure of Invention

The utility model aims to provide a belt transmission slip detection device of a press machine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a belt transmission slip detection device of a press machine comprises: the device comprises a driving motor, an induction block, a detection switch mounting bracket and a PLC controller;

the driving motor selects the motor of built-in rotary encoder, driving motor's output with the input of PLC controller is connected, fixed mounting has the belt pulley in driving motor's the pivot, the belt pulley with install the flywheel on the crossbeam and pass through the belt and connect, induction block fixed mounting is in flywheel one side, detection switch with the induction block corresponds the setting, detection switch fixed mounting is on detection switch installing support.

Preferably, the PLC controller includes a display.

Preferably, the detection distance between the sensing block and the detection switch is 10 mm-15 mm.

Preferably, the output end of the detection switch is connected with the input end of the PLC.

Preferably, an alarm device is arranged on the PLC, and the input end of the alarm device is connected with the output end of the PLC.

Preferably, the alarm device is specifically an audible and visual alarm.

The utility model has at least the following beneficial effects:

the belt transmission slip detection device for the press machine, which is designed by the utility model, can rapidly and simply detect whether the belt slips, has a relatively simple structure, is convenient to install and debug, has lower cost and higher reliability. Meanwhile, the detection device can be also applied to other transmission mechanisms.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a front view of a belt drive slip detection device for a press provided by the utility model;

fig. 2 is a schematic diagram of a belt drive slip detection device for a press machine.

Reference numerals illustrate:

1. a driving motor; 2. a small pulley; 3. a belt; 4. a flywheel; 5. an induction block; 6. a detection switch; 7. a detection switch mounting bracket; 8. a PLC controller; 9. alarm device 10, display.

Detailed Description

The following detailed description of embodiments of the present utility model will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present utility model can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Example 1

Referring to fig. 1 and 2, a belt transmission slip detection device for a press includes: the device comprises a driving motor 1, an induction block 5, a detection switch 6, a detection switch mounting bracket 7 and a PLC controller 8;

the motor of built-in rotary encoder is selected for use to driving motor 1, and driving motor 1's output is connected with PLC controller 8's input, and fixed mounting has belt pulley 2 in driving motor 1's the pivot, installs flywheel 4 on the crossbeam, belt pulley 2 with install flywheel 4 on the crossbeam and pass through belt 3 to be connected, and sensing block 5 fixed mounting is in flywheel 4 one side, and detecting switch 6 and sensing block 5 correspond the setting, and detecting switch 6 fixed mounting is on detecting switch installing support 7.

The control program of the PLC controller 8 is as follows:

referring to fig. 1 and 2, after the press is powered on, the driving motor 1 detects the rotation speed of the output shaft of the driving motor, that is, the rotation speed of the small pulley 2 through an encoder built in the driving motor, and according to the formula flywheel rotation speed=the rotation speed of the small pulley, the small pulley diameter is 1, the slip ratio/flywheel diameter is 0-2%, and the rotation speed range of the flywheel 4 is set in the PLC controller 8. When the actual rotation speed of the flywheel 4 detected by the detection switch 6 is within the set rotation speed range of the flywheel, the belt 3 can be considered to be free from slipping; when the detected rotation speed of the flywheel 4 is lower than or higher than the set rotation speed range of the flywheel, the belt 3 can be considered to slip, and the PLC 8 controls the alarm device 9 to alarm;

the PLC 8 can control the program to be manually turned on or turned off, the detection device is turned on only when the press works normally, and the detection device is turned off manually when the press is debugged and overhauled;

the sensing block 5 rotates along with the flywheel, the sensing block 5 triggers the detection switch 6 once every time the flywheel rotates, and a trigger signal of the detection switch 6 is fed back to the PLC 8 for conversion, so that the real-time rotating speed of the flywheel 4 is obtained.

Example two

Referring to fig. 1 and 2, the detection distance between the sensing block 5 and the detection switch 6 is 10 mm-15 mm, the output end of the detection switch 6 is connected with the input end of the PLC controller 8, the PLC controller 8 is provided with an alarm device 9, the input end of the alarm device 9 is connected with the output end of the PLC controller 8, the alarm device 9 is specifically an audible-visual alarm, and the alarm device 9 can prompt a user rapidly.

The working principle of the utility model is as follows: the built-in rotary encoder of the driving motor 1 detects the real-time rotation speed of the small belt pulley 2, an ideal rotation speed range of the flywheel 4 is calculated through a series of other known data, and the actual rotation speed of the flywheel 4 detected by the detection switch 6 and the sensing block 5 is compared with the calculated ideal rotation speed of the flywheel, so that whether the belt slips or not is judged.

The utility model is not described in terms of mechanisms, and is well known to those skilled in the art.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept, either as a result of the foregoing teachings or as a result of the knowledge or skills of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (6)

1. The utility model provides a press belt drive detection device that skids which characterized in that includes: the device comprises a driving motor (1), an induction block (5), a detection switch (6), a detection switch mounting bracket (7) and a PLC (programmable logic controller) controller (8);

the driving motor (1) selects the motor of built-in rotary encoder, the output of driving motor (1) with the input of PLC controller (8) is connected, fixed mounting has belt pulley (2) in the pivot of driving motor (1), belt pulley (2) with install flywheel (4) on the crossbeam and pass through belt (3) to be connected, induction block (5) fixed mounting is in flywheel (4) one side, detection switch (6) with induction block (5) correspond the setting, detection switch (6) fixed mounting is on detection switch installing support (7).

2. The belt drive slip detection device of a press of claim 1, wherein: the PLC controller (8) comprises a display (10).

3. The belt drive slip detection device of a press of claim 1, wherein: the detection distance between the sensing block (5) and the detection switch (6) is 10 mm-15 mm.

4. A press belt drive slip detection apparatus as claimed in claim 3, wherein: the output end of the detection switch (6) is connected with the input end of the PLC (8).

5. The belt drive slip detection device of a press of claim 1, wherein: the PLC (8) is provided with an alarm device (9), and the input end of the alarm device (9) is connected with the output end of the PLC (8).

6. The belt drive slip detection apparatus for a press of claim 5, wherein: the alarm device (9) is specifically an audible and visual alarm.