High-pressure variable-pressure and variable-flow liquid injection mechanism for magnetorheological fluid of shock absorber

Abstract

The utility model discloses a shock absorber magnetorheological fluid high pressure variable pressure and flow injection mechanism which comprises a mechanism body, a buffer cylinder and a quantitative cylinder are installed on the side of the upper end of the mechanism body, a servo motor is installed in the middle of the upper end of the mechanism body in a positioning mode, and a sliding rail is installed at the front end of the lower portion of the mechanism body. According to the magnetorheological fluid high-pressure variable pressure and flow injection mechanism of the shock absorber, after the liquid injection pump set supplies liquid into the buffer cylinder, a pipeline is sealed through the one-way valve to prevent the liquid from flowing back until the buffer cylinder is full, and the two-way pneumatic control ball valve on the top of the buffer cylinder is opened; the servo mechanism pulls a piston rod in the liquid injection quantitative cylinder to fully travel to synchronously fully fill a cavity in the quantitative cylinder, excess air is exhausted through an exhaust valve at an oil inlet and an oil outlet of the quantitative cylinder, and the pressure required for liquid injection in a pipeline is finely adjusted and kept through a servo motor; and then the servo motor drives the quantitative cylinder to inject the magnetorheological fluid with the required volume into the product according to the set oil injection amount.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetorheological fluid for shock absorbers, in particular to a liquid injection mechanism for magnetorheological fluid for shock absorbers with high pressure and variable pressure and flow. Background Art

[0002] The high-pressure, variable-pressure and flow injection mechanism of the shock absorber's magnetorheological fluid is a supporting device for controlling the shock absorber's magnetorheological fluid. It is a mechanism for high-pressure injection of magnetorheological fluid into the shock absorber's inner cylinder. With the continuous development of science and technology, people have increasingly higher requirements for the manufacturing process of the high-pressure, variable-pressure and flow injection mechanism of the shock absorber's magnetorheological fluid.

[0003] The existing magnetorheological fluid for shock absorbers has certain disadvantages when used. First, the existing magnetorheological fluid for shock absorbers cannot control the injection mechanism conveniently and quickly when in use, and the internal air cannot be removed during high-pressure injection, which brings certain adverse effects to the actual use process. For this reason, we propose a high-pressure variable pressure and flow injection mechanism for magnetorheological fluid for shock absorbers. Utility Model Content

[0004] Technical problem solved: In response to the shortcomings of the existing technology, the utility model provides a high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber. The injection pump group supplies liquid to the inside of the buffer cylinder and then closes the pipeline through a one-way valve to prevent liquid backflow until the buffer cylinder is full. The two-way air-controlled ball valve on the top of the buffer cylinder is opened, and the servo mechanism then pulls the piston rod in the injection metering cylinder to travel the full stroke to fill the cavity in the metering cylinder synchronously. The excess air is discharged through the exhaust valve at the oil inlet and outlet of the metering cylinder. The servo motor is used to fine-tune and maintain the required injection pressure in the pipeline, and then the servo motor drives the metering cylinder to inject the required volume of magnetorheological fluid into the product through the set oil injection amount, which can effectively solve the problems in the background technology.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of a shock absorber, including a mechanism body, a buffer cylinder and a metering cylinder are installed on the upper side of the mechanism body, a servo motor is positioned and installed in the middle of the upper end of the mechanism body, a slide rail is installed at the front end position of the lower part of the mechanism body, a sliding seat is movably provided at the front end of the slide rail, a screw module is connected between the servo motor and the sliding seat, a piston rod is connected between the sliding seat and the metering cylinder, an exhaust valve is installed on the outside of the metering cylinder, an air-controlled ball valve, a pressure sensor and a one-way valve are installed on the top of the cache cylinder, and a base plate is installed at the bottom of the mechanism body.

[0006] Preferably, the buffer cylinder and the metering cylinder are both fixed to the mechanism body through an angle code locator, and the pressure sensor monitors the internal pressure of the buffer cylinder.

[0007] Preferably, the servo motor drives the screw module and drives the sliding seat to move up and down at the front end of the slide rail, and the sliding seat drives the piston rod to move up and down inside the metering cylinder.

[0008] Preferably, the exhaust valve controls the exhaust of gas from the interior of the metering cylinder.

[0009] Preferably, after the liquid is supplied to the interior of the buffer cylinder by the injection pump group, the pipeline is closed through a one-way valve to prevent the liquid from flowing back until the buffer cylinder is full. The air-controlled ball valve on the top of the buffer cylinder is opened, and the servo motor then pulls the piston rod in the metering cylinder to a full stroke, and the cavity in the metering cylinder is also filled synchronously. The excess air is discharged through the exhaust valve at the inlet and outlet of the metering cylinder, and the servo motor is used to fine-tune and maintain the required injection pressure in the pipeline.

[0010] Preferably, the servo motor drives the metering cylinder to inject the required volume of magnetorheological fluid into the product through a set oil injection amount, maintaining the pressure and flow of the liquid injection required by the product.

[0011] Beneficial effect: Compared with the prior art, the utility model provides a high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber, which has the following beneficial effects: the high-pressure variable pressure and flow injection mechanism of magnetorheological fluid of shock absorber comprises a set of buffer cylinder, one-way valve, air-controlled ball valve, exhaust valve, quantitative cylinder, pressure sensor, servo motor, screw module components and mechanism. After the liquid is supplied to the inside of the buffer cylinder by the injection pump group, the one-way valve is used to close the pipeline to prevent the liquid from flowing back until the buffer cylinder is full. The two-way air-controlled ball valve on the top of the buffer cylinder is opened, and the servo motor is used to The servo mechanism then pulls the piston rod in the metering cylinder to complete the stroke, filling the cavity in the metering cylinder simultaneously. Excess air is discharged through the exhaust valve at the oil inlet and outlet of the metering cylinder. The servo motor fine-tunes and maintains the required injection pressure in the pipeline. Then, the servo motor drives the metering cylinder to inject the required volume of magnetorheological fluid into the product through the set oil injection amount, maintaining the required injection pressure and flow of the product. The entire shock absorber magnetorheological fluid high-pressure variable pressure and flow injection mechanism has a simple structure, is easy to operate, and has better results than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the injection mechanism of the magnetorheological fluid with high pressure and variable flow for the shock absorber of the utility model.

[0013] Figure 2 This is a structural diagram of the main view of the injection mechanism of the magnetorheological fluid with high pressure and variable pressure and flow for the shock absorber of the utility model.

[0014] Figure 3 This is a schematic structural diagram of a top view of a liquid injection mechanism for high-pressure variable pressure and flow of magnetorheological fluid in a shock absorber according to the present invention.

[0015] Figure 4 This is a structural diagram of a buffer cylinder in a high-pressure variable pressure and flow injection mechanism of magnetorheological fluid for a shock absorber according to the utility model.

[0016] In the figure: 1. Mechanism body; 2. Buffer cylinder; 3. Air-controlled ball valve; 4. Pressure sensor; 5. One-way valve; 6. Dosing cylinder; 7. Servo motor; 8. Exhaust valve; 9. Screw module; 10. Piston rod; 11. Slide rail; 12. Sliding seat; 13. Base plate. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-4As shown, the shock absorber magnetorheological fluid high-pressure variable pressure and flow injection mechanism includes a mechanism body 1, a buffer cylinder 2 and a metering cylinder 6 are installed on the upper side of the mechanism body 1, a servo motor 7 is positioned and installed in the middle of the upper end of the mechanism body 1, a slide rail 11 is installed at the front end of the lower part of the mechanism body 1, and a sliding seat 12 is movably provided at the front end of the slide rail 11. A screw module 9 is connected between the servo motor 7 and the sliding seat 12, a piston rod 10 is connected between the sliding seat 12 and the metering cylinder 6, an exhaust valve 8 is installed on the outside of the metering cylinder 6, and an air-controlled ball valve 3, a pressure sensor 4 and a one-way valve are installed on the top of the buffer cylinder 2. Valve 5, a base plate 13 is installed at the bottom of the main body 1 of the mechanism. After the liquid is supplied to the inside of the buffer cylinder by the liquid injection pump group, the pipeline is closed through the one-way valve to prevent the liquid from flowing back until the buffer cylinder is full. The two-way air-controlled ball valve on the top of the buffer cylinder is opened, and the servo mechanism pulls the piston rod in the liquid injection metering cylinder to travel the full stroke to fill the cavity in the metering cylinder synchronously. The excess air is discharged through the exhaust valve at the inlet and outlet of the metering cylinder. The servo motor is used to fine-tune and maintain the required injection pressure in the pipeline, and then the servo motor drives the metering cylinder to inject the required volume of magnetorheological fluid into the product through the set oil injection amount to maintain the required injection pressure and flow of the product.

[0021] Furthermore, the buffer cylinder 2 and the metering cylinder 6 are both fixed to the mechanism body 1 through angle code locators, and the pressure sensor 4 monitors the internal pressure of the buffer cylinder 2.

[0022] Furthermore, the servo motor 7 drives the screw module 9 and drives the sliding seat 12 to move up and down at the front end of the slide rail 11 , and the sliding seat 12 drives the piston rod 10 to move up and down inside the metering cylinder 6 .

[0023] Furthermore, the exhaust valve 8 controls the exhaust of gas from the interior of the metering cylinder 6 .

[0024] Furthermore, after the liquid is supplied to the interior of the buffer cylinder 2 by the injection pump group, the pipeline is closed through the one-way valve 5 to prevent the liquid from flowing back until the buffer cylinder 2 is full. The air-controlled ball valve 3 on the top of the buffer cylinder 2 is opened, and the servo motor 7 pulls the piston rod 10 in the metering cylinder 6 to complete the stroke, and the cavity in the metering cylinder 6 is also filled synchronously. The excess air is discharged through the exhaust valve 8 at the inlet and outlet of the metering cylinder 6, and the servo motor 7 is used to fine-tune and maintain the required injection pressure in the pipeline.

[0025] Furthermore, the servo motor 7 drives the metering cylinder 6 to inject the required volume of magnetorheological fluid into the product through the set oil injection amount, maintaining the pressure and flow rate of the injection required by the product.

[0026] Working principle: The utility model includes a mechanism body 1, a buffer cylinder 2, an air-controlled ball valve 3, a pressure sensor 4, a one-way valve 5, a metering cylinder 6, a servo motor 7, an exhaust valve 8, a screw module 9, a piston rod 10, a slide rail 11, a sliding seat 12, and a base plate 13. The liquid is supplied to the inside of the buffer cylinder by the injection pump group, and then the pipeline is closed through the one-way valve to prevent the liquid from flowing back until the buffer cylinder is full. The two-way air-controlled ball valve on the top of the buffer cylinder is opened, and the servo mechanism pulls the piston rod in the injection metering cylinder to travel a full stroke to fill the cavity in the metering cylinder synchronously. The excess air is discharged through the exhaust valve at the oil inlet and outlet of the metering cylinder. The servo motor is used to fine-tune and maintain the required injection pressure in the pipeline, and then the servo motor drives the metering cylinder to inject the required volume of magnetorheological fluid into the product through the set oil injection amount to maintain the required injection pressure and flow of the product.

[0027] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A magnetorheological fluid high-pressure variable pressure and flow injection mechanism for a shock absorber, comprising a mechanism body (1), characterized in that: A buffer cylinder (2) and a metering cylinder (6) are installed on the upper side of the mechanism body (1); a servo motor (7) is positioned and installed in the middle of the upper end of the mechanism body (1); a slide rail (11) is installed at the front end of the lower part of the mechanism body (1); a sliding seat (12) is movably provided at the front end of the slide rail (11); a screw module (9) is connected between the servo motor (7) and the sliding seat (12); a piston rod (10) is connected between the sliding seat (12) and the metering cylinder (6); an exhaust valve (8) is installed on the outside of the metering cylinder (6); an air-controlled ball valve (3), a pressure sensor (4) and a one-way valve (5) are installed on the top of the buffer cylinder (2); and a base plate (13) is installed at the bottom of the mechanism body (1).

2. The high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber according to claim 1, characterized in that: The buffer cylinder (2) and the quantitative cylinder (6) are both fixed to the mechanism body (1) via an angle code locator, and the pressure sensor (4) monitors the internal pressure of the buffer cylinder (2).

3. The high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber according to claim 1, characterized in that: The servo motor (7) drives the screw module (9) and drives the sliding seat (12) to move up and down at the front end of the slide rail (11), and the sliding seat (12) drives the piston rod (10) to move up and down inside the metering cylinder (6).

4. The magnetorheological fluid high-pressure variable pressure and flow injection mechanism for shock absorbers according to claim 1, characterized in that: The exhaust valve (8) controls the exhaust of gas from the interior of the metering cylinder (6).

5. The high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber according to claim 1, characterized in that: After the liquid injection pump group supplies liquid into the interior of the buffer cylinder (2), the one-way valve (5) closes the pipeline to prevent the liquid from flowing back until the buffer cylinder (2) is full. The air-controlled ball valve (3) on the top of the buffer cylinder (2) is opened, and the servo motor (7) then pulls the piston rod (10) in the metering cylinder (6) to travel the full stroke, and the cavity in the metering cylinder (6) is also filled synchronously. The excess air is discharged through the exhaust valve (8) at the oil inlet and outlet of the metering cylinder (6), and the servo motor (7) fine-tunes and maintains the required injection pressure in the pipeline.

6. The high-pressure variable pressure and flow injection mechanism for magnetorheological fluid of shock absorber according to claim 1, characterized in that: The servo motor (7) drives the metering cylinder (6) to inject a required volume of magnetorheological fluid into the product through a set oil injection amount, thereby maintaining the required injection pressure and flow rate of the product.

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