CN111810467A - Interchangeable range liquid pressure controller - Google Patents

Abstract

The invention relates to the technical field of mechanical measurement, and discloses a liquid pressure controller with a replaceable range. Among them, the controller includes a liquid pressure controller cavity, a pre-pressure pump, a check valve, a main piston pump, an intelligent pressure module, an oil cup and a drive module. The pre-pressure pump is connected to the check valve and is co-located with the main piston pump. In the cavity, the oil cup and the intelligent pressure module are connected to the cavity. The working medium in the oil cup is pressurized by the pre-pressure pump and then filled into the cavity through the one-way valve. The intelligent pressure module detects the hydraulic pressure in the cavity in real time and drives the module. When the detected hydraulic pressure reaches the initial predetermined pressure, a signal to control the pre-pressure pump to stop pressurization and a signal to control the main piston pump to start pressurization are output, and the drive module outputs a control signal for the main piston pump according to the detected hydraulic pressure and the target set pressure. The pressure regulation speed and the signal of the adjustment scale to make the hydraulic pressure in the cavity reach the target set pressure. Thereby, the automatic control of the liquid pressure can be realized, and the work efficiency is greatly improved.

Description

Interchangeable range liquid pressure controller

technical field

The invention relates to the technical field of mechanical measurement, in particular to a liquid pressure controller with a replaceable range.

Background technique

The existing main hydraulic controllers are all built-in hydraulic sensor modules, which cannot be disassembled, and their pressure control range is fixed and cannot be changed. Depending on the hydraulic control range in the work, it may be necessary to equip multiple hydraulic controllers, which seriously affects the work efficiency, and also increases the investment of equipment purchase funds, causing great inconvenience in work. In addition, the control of the hydraulic pressure requires corresponding operators to control according to the measurement results of the hydraulic sensor module, and the workload is large and the efficiency is low.

SUMMARY OF THE INVENTION

The invention provides a liquid pressure controller with replaceable range, which can solve the technical problems in the prior art.

The present invention provides a liquid pressure controller with a replaceable range, wherein the controller includes a liquid pressure controller cavity, a pre-pressure pump, a one-way valve, a main piston pump, an intelligent pressure module, an oil cup and a drive module, The pre-pressure pump is connected to the one-way valve and is placed in the cavity of the liquid pressure controller together with the main piston pump. The oil cup and the intelligent pressure module are connected to the cavity of the liquid pressure controller. connected, the drive module is connected with the pre-pressure pump, the one-way valve, the main piston pump and the intelligent pressure module, wherein,

The working medium in the oil cup is pressurized by the pre-pressing pump and then charged into the cavity of the liquid pressure controller through the one-way valve, and the intelligent pressure module is used to pressurize the cavity of the liquid pressure controller. The hydraulic pressure is detected in real time, and the drive module is configured to output a signal for controlling the pre-pressure pump to stop pressurizing and a signal for controlling the main piston pump to start pressurizing when the detected hydraulic pressure reaches an initial predetermined pressure, and The drive module is further configured to output a signal for controlling the pressure regulating speed and the scale of the main piston pump according to the detected hydraulic pressure and the target set pressure, so that the hydraulic pressure in the hydraulic pressure controller cavity reaches the target set pressure. fixed pressure.

Preferably, the drive module outputs a signal for controlling the pressure regulating speed and the scale of the main piston pump according to the detected hydraulic pressure and the target set pressure, so that the hydraulic pressure in the hydraulic pressure controller cavity reaches the target set pressure. Constant pressure includes:

When the detected hydraulic pressure is less than the target set pressure, output a signal for controlling the pressure regulating speed of the main piston pump to increase at predetermined speed intervals and the scale to increase at predetermined scale intervals;

When the detected hydraulic pressure is greater than the target set pressure, a signal for controlling the pressure regulation speed of the main piston pump to decrease at predetermined speed intervals and the scale to decrease at predetermined scale intervals is output.

Preferably, the controller further includes a signal relay module, connected to the drive module, the pre-pressure pump, the one-way valve and the main piston pump, for converting the control signal output by the drive module The electrical signals are correspondingly output to the pre-pressure pump, the one-way valve and the main piston pump.

Preferably, the controller further includes a communication module disposed between the signal relay module and the drive module and connected to the intelligent pressure module, the intelligent pressure module and the signal relay module pass through the The communication module communicates with the drive module.

Preferably, the controller further includes a display module, which is connected with the driving module and the intelligent pressure module.

Preferably, the display module is a touch display screen.

Through the above technical solution, the intelligent pressure module is connected to the cavity of the liquid pressure controller, so that the replacement of the intelligent pressure module can be realized, so as to meet the needs of each pressure range; and the intelligent pressure module can be used to detect the hydraulic pressure in real time, and then drive the The module can control the pre-pressure pump and the main piston pump according to the hydraulic pressure detected in real time, so that the hydraulic pressure in the cavity of the liquid pressure controller reaches the target set pressure. Therefore, the automatic control of the liquid pressure can be realized without manual participation, which greatly improves the work efficiency.

Description of drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention, constitute a part of the specification, are used to illustrate the embodiments of the invention, and together with the description, serve to explain the principles of the invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 shows a schematic diagram of the principle of a liquid pressure controller with a replaceable range according to an embodiment of the present invention.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

FIG. 1 shows a schematic diagram of the principle of a liquid pressure controller with a replaceable range according to an embodiment of the present invention.

As shown in FIG. 1 , an embodiment of the present invention provides a liquid pressure controller with a replaceable range, wherein the controller includes a liquid pressure controller cavity 10 , a pre-pressure pump 12 , a check valve 14 , and a main piston pump 16. The intelligent pressure module 18, the oil cup 20 and the drive module 22, the pre-pressure pump 12 is connected to the one-way valve 14 and is placed in the liquid pressure controller cavity 10 together with the main piston pump 16 , the oil cup 20 and the intelligent pressure module 18 are connected to the liquid pressure controller cavity 10, and the drive module 22 is connected to the pre-pressure pump 12, the one-way valve 14, the main piston pump 16 is connected to the intelligent pressure module 18, wherein,

That is, only the pre-pressure pump 12 , the one-way valve 14 and the main piston pump 16 are provided in the liquid pressure controller cavity 10 . The rest of the component modules are arranged outside the liquid pressure controller cavity 10 .

The working medium in the oil cup 2 is pressurized by the pre-pressure pump 12 and then charged into the liquid pressure controller cavity 10 through the one-way valve 14. The intelligent pressure module 18 is used to The hydraulic pressure in the cavity 10 of the hydraulic pressure controller is detected in real time, and the driving module 22 is used to output a signal for controlling the pre-pressure pump 12 to stop pressurizing and control the pressure when the detected hydraulic pressure reaches an initial predetermined pressure. The signal that the main piston pump 16 starts to pressurize, and the drive module 22 is also used to output a signal to control the pressure regulation speed and the adjustment scale of the main piston pump 16 according to the detected hydraulic pressure and the target set pressure to make the The hydraulic pressure in the hydraulic pressure controller chamber 10 reaches the target set pressure.

Among them, the amount of working medium added to the oil cup can exceed two-thirds of its volume.

Through the above technical solution, the intelligent pressure module is connected to the cavity of the liquid pressure controller, so that the replacement of the intelligent pressure module can be realized, so as to meet the needs of each pressure range; and the intelligent pressure module can be used to detect the hydraulic pressure in real time, and then drive the The module can control the pre-pressure pump and the main piston pump according to the hydraulic pressure detected in real time, so that the hydraulic pressure in the cavity of the liquid pressure controller reaches the target set pressure. Therefore, the automatic control of the liquid pressure can be realized without manual participation, which greatly improves the work efficiency.

According to an embodiment of the present invention, the driving module 22 outputs a signal for controlling the pressure regulating speed of the main piston pump 16 and adjusting the scale according to the detected hydraulic pressure and the target set pressure, so as to make the hydraulic pressure controller cavity The hydraulic pressure within 10 to reach the target set pressure includes:

When the detected hydraulic pressure is less than the target set pressure, output a signal for controlling the pressure regulation speed of the main piston pump 16 to increase at predetermined speed intervals and the adjustment scale to increase at predetermined scale intervals;

When the detected hydraulic pressure is greater than the target set pressure, a signal for controlling the pressure regulation speed of the main piston pump 16 to decrease at predetermined speed intervals and the adjustment scale to decrease at predetermined scale intervals is output.

Wherein, those skilled in the art can set the predetermined speed interval and the predetermined scale interval according to the actual situation, which is not limited in the present invention.

For example, both the predetermined speed interval and the predetermined scale interval may be set relatively small, that is, by increasing the adjustment frequency, so that the hydraulic pressure in the cavity finally reaches the target set pressure. Thereby, precision and efficiency of hydraulic pressure regulation can be achieved.

According to an embodiment of the present invention, the controller further includes a signal relay module 24, which is connected to the drive module 22, the pre-pressure pump 12, the one-way valve 14 and the main piston pump 16, and is used for The control signal output by the driving module 22 is converted into an electrical signal and correspondingly output to the pre-pressure pump 12 , the one-way valve 14 and the main piston pump 16 .

That is, the signal relay module 24 can convert the control commands/instructions output by the drive module 22 into identifiable potential signals and output them to the pre-pressure pump 12 , the one-way valve 14 and the main piston pump 16 .

According to an embodiment of the present invention, the controller further includes a communication module 26 disposed between the signal relay module 24 and the driving module 22 and connected to the intelligent pressure module 18, the intelligent pressure module 18 and the signal relay module 24 communicates with the driving module 22 through the communication module 26 .

That is, the communication between the intelligent pressure module 18 and the signal relay module 24 and the driving module 22 can be realized through the communication module 26 .

According to an embodiment of the present invention, the controller further includes a display module 28 connected to the driving module 22 and the intelligent pressure module 18 .

Therefore, the pressure value measured by the intelligent pressure module 18 can be displayed by the display module 28 , and the control result of the driving module 22 can also be displayed by the display module 28 .

According to an embodiment of the present invention, the display module 28 is a touch display screen.

By using the touch screen as a display module, in addition to displaying the relevant data in the control process, it is also possible to directly input the relevant input data through the touch screen. For example, the initial predetermined pressure, the target set pressure, the predetermined speed interval, the predetermined scale interval, and the like can be inputted by touching the display screen.

In the description of the present invention, it should be understood that the orientations indicated by orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientations do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood to limit the scope of protection of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. A liquid pressure controller with replaceable measuring range is characterized by comprising a liquid pressure controller cavity, a prepressing pump, a one-way valve, a main piston pump, an intelligent pressure module, an oil cup and a driving module, wherein the prepressing pump is connected with the one-way valve and is arranged in the liquid pressure controller cavity together with the main piston pump, the oil cup and the intelligent pressure module are connected with the liquid pressure controller cavity, the driving module is connected with the prepressing pump, the one-way valve, the main piston pump and the intelligent pressure module,

the intelligent pressure control system comprises a hydraulic pressure controller, an intelligent pressure module, a driving module and a main piston pump, wherein the hydraulic pressure controller is used for controlling the hydraulic pressure controller to be pressurized, the intelligent pressure module is used for detecting the hydraulic pressure in the hydraulic pressure controller cavity in real time, the driving module is used for outputting a signal for controlling the pre-pressurizing pump to stop pressurizing and a signal for controlling the main piston pump to start pressurizing when the detected hydraulic pressure reaches an initial preset pressure, and the driving module is also used for outputting a signal for controlling the pressure regulating speed and the scale regulation of the main piston pump according to the detected hydraulic pressure and a target set pressure so as to enable the hydraulic pressure in the hydraulic pressure controller cavity to reach the target set pressure.

2. The controller of claim 1, wherein the drive module outputs signals to control the pressure regulation speed and the regulation scale of the main piston pump to cause the hydraulic pressure in the hydraulic pressure controller chamber to reach the target set pressure based on the detected hydraulic pressure and the target set pressure comprises:

outputting a signal for controlling the pressure-regulating speed of the main piston pump to increase at predetermined speed intervals and the adjustment scale to increase at predetermined scale intervals in the case where the detected hydraulic pressure is less than the target set pressure;

and outputting a signal for controlling the pressure regulating speed of the main piston pump to decrease at predetermined speed intervals and the regulation scale to decrease at predetermined scale intervals in the case where the detected hydraulic pressure is greater than the target set pressure.

3. The controller according to claim 2, further comprising a signal relay module, connected to the driving module, the pre-charge pump, the check valve and the main piston pump, for converting the control signal output by the driving module into an electrical signal and outputting the electrical signal to the pre-charge pump, the check valve and the main piston pump.

4. The controller of claim 3, further comprising a communication module disposed between the signal relay module and the driving module and connected to the intelligent pressure module, wherein the intelligent pressure module and the signal relay module communicate with the driving module through the communication module.

5. The controller of claim 4, further comprising a display module coupled to the driver module and the smart pressure module.

6. The controller of claim 5, wherein the display module is a touch screen display.

Images