CN219082213U

CN219082213U - Automatic switching device for cooling oil way of reduction gearbox

Info

Publication number: CN219082213U
Application number: CN202320032984.6U
Authority: CN
Inventors: 李国荣; 宋兵; 朱远峰
Original assignee: Winko Plastics Co ltd
Current assignee: Winko Plastics Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-26
Anticipated expiration: 2033-01-06

Abstract

The utility model belongs to the technical field of sheet production, and discloses an automatic switching device of a cooling oil way of a reduction gearbox, which comprises an oil pump (1) and a default oil way, wherein the oil pump is communicated with the default oil way, an angle valve and a filter screen are arranged on the default oil way, and the automatic switching device also comprises: the intelligent hydraulic control system comprises an inlet pressure gauge (2), an outlet pressure gauge (3), a standby oil circuit, a PLC (4) and an alarm (11), wherein the standby oil circuit is connected with a default oil circuit in parallel to form a parallel branch circuit, an angle valve and a filter screen are arranged on the standby oil circuit, an oil pump is communicated with the parallel branch circuit, the inlet pressure gauge is arranged between the oil pump and the parallel branch circuit, the outlet pressure gauge is arranged behind the parallel branch circuit, and the inlet pressure gauge, the outlet pressure gauge, the angle valve and the alarm are all respectively electrically connected with the PLC. The utility model can be switched to another oil way for use in time when the oil way is blocked, and the effect of cooling the reduction gearbox is ensured.

Description

Automatic switching device for cooling oil way of reduction gearbox

Technical Field

The utility model belongs to the technical field of sheet production, and particularly relates to an automatic switching device for a cooling oil way of a reduction gearbox.

Background

In sheet production, an extruder is required, and a reduction gearbox is required to reduce speed between a motor drive and the extruder so as to better control the rotation speed of a screw in the extruder. The existing single oil way mode for cooling oil ways of the reduction gearbox is characterized in that production of a sheet production line is continuous for 24 hours, and when the oil way is blocked, the sheet production line can only be used for processing when scheduled shutdown maintenance is performed, so that the cooling effect of the reduction gearbox is greatly reduced during the process, and the service life of the reduction gearbox is seriously damaged.

However, in the prior art, there is a need for a device capable of providing automatic switching of oil paths, which solves the problem of timely switching to another oil path for use when the oil paths are blocked, so as to ensure the effect of cooling the reduction gearbox.

Disclosure of Invention

The embodiment of the utility model aims to provide an automatic switching device for cooling oil ways of a reduction gearbox, which can be switched to another oil way for use in time when the oil ways are blocked, so that the effect of cooling the reduction gearbox is ensured.

The embodiment of the utility model is realized as follows:

the utility model provides a reducing gear box cooling oil circuit automatic switching control equipment, includes oil pump and default oil circuit, oil pump and default oil circuit intercommunication, installs angle valve and filter screen on the default oil circuit, still includes: the hydraulic control system comprises an inlet pressure gauge, an outlet pressure gauge, a standby oil way, a PLC and an alarm, wherein the standby oil way is connected with a default oil way in parallel to form a parallel branch, an angle valve and a filter screen are arranged on the standby oil way, an oil pump is communicated with the parallel branch, the inlet pressure gauge is arranged between the oil pump and the parallel branch, the outlet pressure gauge is arranged after the parallel branch, and the inlet pressure gauge, the outlet pressure gauge, the angle valve and the alarm are all respectively and electrically connected with the PLC.

Wherein, be equipped with two angle valves and a filter screen on the default oil way, the filter screen is installed between two angle valves.

Wherein, be equipped with two angle valves and a filter screen on the reserve oil circuit, the filter screen is installed between two angle valves.

According to the embodiment of the utility model, the oil way pressure is monitored in real time, the oil way blockage situation is identified, the oil way is rapidly switched, the reduction gearbox is protected, the service life of the reduction gearbox is prolonged, the oil way blockage situation of the reduction gearbox can be timely detected, the reaction can be timely made, the oil way blockage situation is timely switched and used, and an early warning is sent out.

Drawings

FIG. 1 is a schematic diagram of an automatic switching device for a cooling oil path of a reduction gearbox;

the hydraulic oil pump is characterized in that the hydraulic oil pump is 1, the hydraulic oil pump is 2 and 3, the hydraulic oil pump is 4, the angle valves are 5, 6, 8 and 9, the filter screens are 7 and 10, and the alarm is 11.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The following describes in detail the implementation of the present utility model in connection with specific embodiments:

An oil pressure gauge is arranged at the outlet of the oil pump, two parallel oil paths with filters are arranged at the outlet of the oil pump, and then the oil pressure gauge is arranged on the loop of the oil paths. And using a first oil way initially by default, opening the corresponding angle valve of the first oil way, and closing the angle valve of the standby oil way. When the oil pressure gauge of the detection oil way is transmitted to the PLC, the PLC outputs a signal to control the angle valve of the standby oil way to be opened when the oil way is blocked by comparing the inlet pressure with the outlet pressure, and after 5 seconds, the angle valve of the first oil way is closed and the PLC outputs an alarm signal to give an early warning to the alarm. And similarly, the first oil way is switched back. When the inlet pressure and the outlet pressure are low, the oil way is not switched, but an alarm signal is sent.

As shown in fig. 1, the principle of the automatic switching of the present utility model is as follows:

1. when the cooling speed reducing box is normally used, a normal oil way is used, oil enters the cooling speed reducing box for circulation through the inlet oil pressure gauge 2 by the oil pump 1, under the default condition, the PLC 4 controls the angle valves (5 and 6) to be opened, the angle valves (8 and 9) are closed, and the oil enters the speed reducing box for cooling through the filter screen 7 and the outlet oil pressure gauge 3.

2. The signals transmitted to the PLC 4 by the pressure signals of the two pressure gauges are compared, when the pressure difference is found to be too large, the PLC 4 controls the angle valves (8 and 9) to be opened, after 10 seconds, the angle valves (5 and 6) are closed, and signals are sent to the alarm 11 to alarm.

3. The signals transmitted to the PLC 4 by the pressure signals of the two pressure gauges are compared, and when the difference between the two pressures is found to be not large, but the values are smaller than the set value, the oil circuit is not converted, but the PLC 4 sends an alarm signal to the alarm 11 for alarm.

4. Similarly, the principle of switching to the normal oil path when the standby oil path is normally used at present is the same.

The PLC is used for completing the comparison of the pressure signal values and sending out the control signal according to the comparison result, belongs to the prior conventional technology, is a basic means in the control field, belongs to the prior art, and is not repeated here.

According to the embodiment of the utility model, the oil way blockage situation is identified by monitoring the oil way pressure in real time, the oil way is quickly switched, the reduction gearbox is protected, the service life of the reduction gearbox is prolonged, the oil way blockage situation of the reduction gearbox can be timely detected, the reaction can be timely made, the oil way is timely switched and used, and the early warning is sent out.

The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a reducing gear box cooling oil circuit automatic switching control equipment, includes oil pump and default oil circuit, oil pump and default oil circuit intercommunication, installs angle valve and filter screen on the default oil circuit, its characterized in that:

further comprises: the hydraulic control system comprises an inlet pressure gauge, an outlet pressure gauge, a standby oil way, a PLC and an alarm, wherein the standby oil way is connected with a default oil way in parallel to form a parallel branch, an angle valve and a filter screen are arranged on the standby oil way, an oil pump is communicated with the parallel branch, the inlet pressure gauge is arranged between the oil pump and the parallel branch, the outlet pressure gauge is arranged after the parallel branch, and the inlet pressure gauge, the outlet pressure gauge, the angle valve and the alarm are all respectively and electrically connected with the PLC.

2. The automatic switching device for cooling oil passages of a reduction gearbox according to claim 1, wherein: the default oil way is provided with two angle valves and a filter screen, and the filter screen is arranged between the two angle valves.

3. The automatic switching device for cooling oil passages of a reduction gearbox according to claim 1, wherein: the spare oil way is provided with two angle valves and a filter screen, and the filter screen is arranged between the two angle valves.