阅读说明：本技术 减压阀自动辅助调试装置、操作方法及减压阀装置 (Automatic auxiliary debugging device for pressure reducing valve, operation method and pressure reducing valve device ) 是由 马海涛 章红莉 陆冰 唐妹芳 陈涛 施慧 吴斌 于 2021-07-27 设计创作，主要内容包括：本发明提供了一种减压阀自动辅助调试装置、操作方法及减压阀装置,包括：支架、电机、减速器、电动缸、顶杆和弹簧套；所述电机安装所述减速器一端,所述减速器另一端安装所述电动缸一端,所述电动缸另一端安装在所述支架上；所述电动缸另一端安装所述顶杆一端,所述顶杆另一端安装所述弹簧套；所述电机电连接控制程序。本发明利用电动缸将旋转运动转变为直线运动,避免减压阀主弹簧端面与弹簧套的端面摩擦,使减压阀主弹簧在工作中不存在扭力,提高减压阀主弹簧工作过程中的稳定性。(The invention provides an automatic auxiliary debugging device, an operation method and a pressure reducing valve device for a pressure reducing valve, wherein the automatic auxiliary debugging device comprises: the device comprises a bracket, a motor, a speed reducer, an electric cylinder, a mandril and a spring sleeve; the motor is installed at one end of the speed reducer, the other end of the speed reducer is installed at one end of the electric cylinder, and the other end of the electric cylinder is installed on the support; the other end of the electric cylinder is provided with one end of the ejector rod, and the other end of the ejector rod is provided with the spring sleeve; the motor is electrically connected with a control program. According to the invention, the rotary motion is converted into linear motion by using the electric cylinder, so that the friction between the end surface of the main spring of the pressure reducing valve and the end surface of the spring sleeve is avoided, the main spring of the pressure reducing valve does not have torsion in the working process, and the stability of the main spring of the pressure reducing valve in the working process is improved.)

1. An automatic auxiliary debugging device for a pressure reducing valve is characterized by comprising: the device comprises a support (1), a motor (2), a speed reducer (3), an electric cylinder (4), a top rod (6) and a spring sleeve (7);

the motor (2) is installed at one end of the speed reducer (3), the other end of the speed reducer (3) is installed at one end of the electric cylinder (4), and the other end of the electric cylinder (4) is installed on the support (1);

the other end of the electric cylinder (4) is provided with one end of the ejector rod (6), and the other end of the ejector rod (6) is provided with the spring sleeve (7);

the motor (2) is electrically connected with a control program.

2. The automatic auxiliary debugging device for the pressure reducing valve according to claim 1, characterized in that: the support is characterized in that a base is arranged at the bottom of the support (1), a plurality of support columns are vertically arranged on one side of the base, a horizontal plate is arranged between the support columns, and the horizontal plate is parallel to the base.

3. The automatic auxiliary debugging device for the pressure reducing valve according to claim 2, characterized in that: a pressure reducing valve (9) is arranged on one side, facing the horizontal plate, of the base, one side of the pressure reducing valve (9) is communicated with one end of an inlet pipeline, and the other side of the pressure reducing valve (9) is communicated with one end of an outlet pipeline;

the other end of the inlet pipeline is communicated with a high-pressure gas cylinder, and the other end of the outlet pipeline is provided with a pressure sensor (8).

4. The automatic auxiliary debugging device for the pressure reducing valve according to claim 3, characterized in that: the electric cylinder (4) is arranged on one side of the horizontal plate back to the base;

the horizontal plate faces one side of the base and is provided with the ejector rod (6) and the force sensor (5), one side of the force sensor (5) is connected with the electric cylinder (4), and the other side of the force sensor (5) is connected with the ejector rod (6).

5. The automatic auxiliary debugging device for the pressure reducing valve according to claim 4, wherein: a spring sleeve (7) is installed on one side, facing the horizontal plate, of the pressure reducing valve (9) in a threaded mode, and a pressure reducing valve main spring (11) is arranged between the spring sleeve (7) and the pressure reducing valve (9);

a spring pad (10) is arranged between the main spring (11) of the pressure reducing valve and the inner wall of the top end of the spring sleeve (7), a through hole is formed in the top end of the spring sleeve (7), and the diameter of the through hole is smaller than that of the spring pad (10);

the ejector rod (6) extends towards one end of the base and passes through the through hole, and the ejector rod (6) presses the spring pad (10) and compresses the pressure reducing valve main spring (11) through the spring pad (10).

6. The automatic auxiliary debugging device for the pressure reducing valve according to claim 5, characterized in that: the motor (2) is in transmission connection with the electric cylinder (4) through the speed reducer (3), and the ejector rod (6) moves along the vertical direction through the electric cylinder (4).

7. The automatic auxiliary debugging device for the pressure reducing valve according to claim 6, characterized in that: the force sensor (5) and the pressure sensor (8) are connected with the control program and feed back signals to the control program;

the motor (2) controls positive and negative rotation through the control program.

8. The automatic auxiliary debugging device for the pressure reducing valve according to claim 7, characterized in that: when the ejector rod (6) compresses the pressure reducing valve main spring (11) through the spring pad (10) until the pressure sensor (8) reaches a target value, the spring sleeve (7) rotates through threads and compresses the spring pad (10) and the pressure reducing valve main spring (11) until the value of the force sensor (5) is 0.

9. A method of operating an automatic auxiliary tuning device for a pressure reducing valve according to claim 8, comprising the steps of:

step S1, after the device is installed, the pressure sensor (8) and the force sensor (5) are connected with the control program, the control program adjusts the rotation of the motor (2) according to the set pressure value at the outlet of the pressure reducing valve (9), the ejector rod (6) moves in the vertical direction and adjusts the compression amount of the main spring (11) of the pressure reducing valve, and the pressure at the outlet of the pressure reducing valve (9) is adjusted to a target value through the main spring (11) of the pressure reducing valve;

step S2, the control program controls the motor (2) to stop rotating when the feedback data of the pressure sensor (8) reaches a target value;

and step S3, the spring sleeve (7) is rotated until the force sensor (5) feeds back the control program data to zero, the spring sleeve (7) is stopped rotating, and the pressure reducing valve (9) is debugged.

10. A pressure reducing valve device characterized by: the pressure reducing valve uses the pressure reducing valve automatic auxiliary debugging device of any one of claims 1 to 8.

Technical Field

The invention relates to the field of pressure reducing valve devices, in particular to an automatic auxiliary debugging device of a pressure reducing valve, an operation method and a pressure reducing valve device.

Background

In the working process of the spacecraft, the extrusion type propulsion system mainly utilizes gas at the outlet of the pressure reducing valve to extrude liquid in the storage tank to provide inlet pressure for the engine. The accuracy of the outlet pressure of the pressure reducing valve directly affects the thrust accuracy of the engine. The pressure relief valve is a single point of failure in most propulsion systems, and the reliability of the pressure relief valve directly determines the reliability of the overall propulsion system.

At present, in the debugging process of the known pressure reducing valve, a main spring of the pressure reducing valve is compressed through a spring sleeve, the outlet pressure of the pressure reducing valve is adjusted, and the outlet pressure under rated flow meets the technical condition requirements.

In the debugging process, the spring sleeve needs to be rotated through a wrench or manually, the spring sleeve advances while rotating, and the rotating sleeve makes spiral linear advancing motion. The process of main spring winding can cause the following problems:

1. the end face of the spring is subjected to the end face friction force of the spring sleeve to cause the spring to twist;

2. when the spring sleeve rotates, the parts around the spring are in contact friction with the shell of the pressure reducing valve to form friction traces and introduce extra friction resistance;

3. the spring sleeve is manually adjusted, the resolution of manual rotation is not high, and the outlet pressure cannot be accurately adjusted;

4. in the testing process, personnel need to frequently go back and forth between debugging and testing, manually screwing or unscrewing a spring between debugging, adding air to test outlet pressure and the like between testing, and the efficiency is not high;

5. the actual loaded primary spring force of each primary spring cannot be tested.

Therefore, an automatic auxiliary debugging device for the pressure reducing valve is urgently needed to be developed so as to improve the debugging efficiency and the debugging precision of the pressure reducing valve and improve the reliability of the pressure reducing valve.

Patent document CN107965596B relates to a pressure reducing valve capable of preventing the influence of vibration generated by ultrasonic welding at the time of assembling the relief valve, ensuring controllability, and improving assembling workability. The pressure reducing valve includes a valve body, a valve stem, a pressure sensitive follower, and a relief valve. The release valve has: releasing the valve port; a first receiving hole communicating with the release valve port and receiving the spherical valve core and the valve closing spring; and a second receiving hole formed by the through hole of the cylindrical member, one end of the second receiving hole communicating with the first receiving hole and the other end opening toward the secondary-side outlet port. The cylindrical member is fixed to the mounting hole of the valve body by ultrasonic welding. A protrusion is provided on an inner wall surface of the second receiving hole on the secondary side flow outlet side. An engaging recess for engaging with the protrusion is provided on the outer periphery of the right large diameter portion of the spring support cover.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic auxiliary debugging device for a pressure reducing valve, an operation method and a pressure reducing valve device.

The invention provides an automatic auxiliary debugging device for a pressure reducing valve, which comprises: the device comprises a bracket, a motor, a speed reducer, an electric cylinder, a mandril and a spring sleeve;

the motor is installed at one end of the speed reducer, the other end of the speed reducer is installed at one end of the electric cylinder, and the other end of the electric cylinder is installed on the support;

the other end of the electric cylinder is provided with one end of the ejector rod, and the other end of the ejector rod is provided with the spring sleeve;

the motor is electrically connected with a control program.

Preferably, the bottom of the support is provided with a base, a plurality of support columns are vertically arranged on one side of the base, a horizontal plate is arranged between the support columns, and the horizontal plate is parallel to the base.

Preferably, a pressure reducing valve is installed on one side, facing the horizontal plate, of the base, one side of the pressure reducing valve is communicated with one end of the inlet pipeline, and the other side of the pressure reducing valve is communicated with one end of the outlet pipeline;

the other end of the inlet pipeline is communicated with a high-pressure gas cylinder, and the other end of the outlet pipeline is provided with a pressure sensor.

Preferably, the electric cylinder is installed on one side, back to the base, of the horizontal plate;

the ejector rod and the force sensor are installed on one side, facing the base, of the horizontal plate, one side of the force sensor is connected with the electric cylinder, and the other side of the force sensor is connected with the ejector rod;

preferably, a spring sleeve is installed on one side, facing the horizontal plate, of the pressure reducing valve in a threaded mode, and a main pressure reducing valve spring is arranged between the spring sleeve and the pressure reducing valve;

a spring pad is arranged between the main spring of the pressure reducing valve and the inner wall of the top end of the spring sleeve, a through hole is formed in the top end of the spring sleeve, and the diameter of the through hole is smaller than that of the spring pad;

the ejector rod extends towards one end of the base and passes through the through hole, and the ejector rod presses the spring pad and compresses the main spring of the pressure reducing valve through the spring pad.

Preferably, the motor is in transmission connection with the electric cylinder through the speed reducer, and the ejector rod moves in the vertical direction through the electric cylinder.

Preferably, the force sensor and the pressure sensor are connected with the control program and feed back signals to the control program;

the motor controls forward and reverse rotation through the control program.

Preferably, when the jack rod compresses the pressure reducing valve main spring through the spring pad until the pressure sensor reaches a target value, the spring housing is rotated through the screw thread and compresses the spring pad and the pressure reducing valve main spring until the force sensor value is 0.

The invention also provides an operation method of the automatic auxiliary debugging device for the pressure reducing valve, which comprises the following steps:

step S1, after the device is installed, the pressure sensor and the force sensor are connected with the control program, the control program adjusts the rotation of the motor according to the set pressure at the outlet of the pressure reducing valve, the ejector rod moves in the vertical direction and adjusts the compression amount of the main spring of the pressure reducing valve, and the pressure at the outlet of the pressure reducing valve is adjusted to a target value through the main spring of the pressure reducing valve;

step S2, the control program controls the motor to stop rotating when the feedback data of the pressure sensor reaches a target value;

and step S3, rotating the spring sleeve until the force sensor feeds back the control program data to zero, stopping rotating the spring sleeve, and completing debugging of the pressure reducing valve.

The invention also provides a pressure reducing valve device, which uses the automatic auxiliary debugging device of the pressure reducing valve;

preferably, the pressure reducing valve main spring is moved in a vertical direction by the carrier rod.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the rotary motion is converted into linear motion by using the electric cylinder, so that the friction between the end surface of the main spring of the pressure reducing valve and the end surface of the spring sleeve is avoided, the main spring of the pressure reducing valve does not have torsion in the working process, and the stability of the main spring of the pressure reducing valve in the working process is improved;

2. the invention avoids the contact friction between the main spring of the pressure reducing valve and the shell of the pressure reducing valve in the rotation process of the spring sleeve to form friction traces, introduces extra friction resistance and improves the stability of the pressure at the outlet of the pressure reducing valve;

3. the invention utilizes the outlet pressure of the pressure sensor, controls the adjusting precision of the main spring of the pressure reducing valve through the motor, and improves the consistency and the accuracy of pressure debugging at the outlet of the pressure reducing valve.

4. The invention realizes the automatic regulation of the pressure at the outlet of the pressure reducing valve by utilizing the automatic feedback regulation of the pressure sensor and the motor, thereby improving the debugging efficiency.

5. The invention utilizes the force sensor to measure the elasticity of the main spring of the pressure reducing valve, thereby increasing the reliability of product data.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an automatic auxiliary debugging device for a pressure reducing valve;

FIG. 2 is a schematic view of a partial structure of a pressure reducing valve before debugging;

fig. 3 is a schematic view of a partial structure in debugging of a pressure reducing valve.

Shown in the figure:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1

As shown in fig. 1, an automatic auxiliary debugging device for a pressure reducing valve comprises: the device comprises a bracket 1, a motor 2, a speed reducer 3, an electric cylinder 4, a mandril 6 and a spring sleeve 7; the motor 2 is provided with one end of a speed reducer 3, the other end of the speed reducer 3 is provided with one end of an electric cylinder 4, the other end of the electric cylinder 4 is provided on a support 1, the other end of the electric cylinder 4 is provided with one end of an ejector rod 6, the other end of the ejector rod 6 is provided with a spring sleeve 7, and the motor 2 is electrically connected with a control program. The bottom of the support 1 is provided with a base, a plurality of support columns are vertically arranged on one side of the base, a horizontal plate is arranged between the support columns, and the horizontal plate is parallel to the base. The base is towards horizontal plate one side installation relief pressure valve 9, and 9 one sides of relief pressure valve communicate inlet pipeline one end, and 9 opposite sides of relief pressure valve communicate outlet pipeline one end, and the inlet pipeline other end communicates high-pressure gas cylinder, and outlet pipeline other end installation pressure sensor 8. The horizontal plate is electronic jar 4 of base one side-mounting dorsad, the horizontal plate is towards base one side-mounting ejector pin 6 and force sensor 5, electronic jar 4 is connected to force sensor 5 one side, ejector pin 6 is connected to force sensor 5 opposite side, relief pressure valve 9 is towards horizontal plate one side screw thread installation spring housing 7, set up relief pressure valve main spring 11 between spring housing 7 and the relief pressure valve 9, set up spring pad 10 between relief pressure valve main spring 11 and the 7 top inner walls of spring housing, 7 tops of spring housing set up the through-hole, the through-hole diameter is less than spring pad 10 diameter, ejector pin 6 extends and passes through the through-hole towards base one end, ejector pin 6 roof pressure spring pad 10 compresses relief pressure valve main spring 11 through spring pad 10.

The motor 2 is in transmission connection with the electric cylinder 4 through the speed reducer 3, the ejector rod 6 moves in the vertical direction through the electric cylinder 4, the force sensor 5 and the pressure sensor 8 are connected with a control program and feed back signals to the control program, the motor 2 controls forward and reverse rotation through the control program, when the ejector rod 6 compresses the pressure reducing valve main spring 11 through the spring cushion 10 until the pressure sensor 8 reaches a target value, the spring sleeve 7 rotates through threads and compresses the spring cushion 10 and the pressure reducing valve main spring 11 until the value of the force sensor 5 is 0, and the pressure reducing valve device can be used for a pressure reducing valve device.

An operation method of an automatic auxiliary debugging device for a pressure reducing valve comprises the following steps:

step S1, after the device is installed, the pressure sensor 8 and the force sensor 5 are connected with a control program, the control program adjusts the rotation of the motor 2 according to the pressure at the outlet of the set pressure reducing valve 9, the mandril 6 moves along the vertical direction and adjusts the compression amount of the main spring 11 of the pressure reducing valve, and the pressure at the outlet of the pressure reducing valve 9 is adjusted to a target value through the main spring 11 of the pressure reducing valve; step S2, the control program controls the motor 2 to stop rotating when the feedback data of the pressure sensor 8 reaches the target value; and step S3, rotating the spring sleeve 7 until the feedback control program data of the force sensor 5 reaches zero, stopping rotating the spring sleeve 7, and completing debugging of the pressure reducing valve 9.

Example 2

Example 2 is a preferred example of the embodiment.

As shown in fig. 1, an automatic auxiliary debugging device for a pressure reducing valve comprises: support 1, motor 2, reduction gear 3, electronic jar 4, force sensor 5, ejector pin 6, spring housing 7 and pressure sensor 8 are constituteed, and motor 2 links to each other with reduction gear 3, and reduction gear 3 is connected with electronic jar 4, and electronic jar 4 is connected with force sensor 5, and electronic jar 4 is installed on support 1, and ejector pin 6 is connected with force sensor 5, and pressure sensor 8 is connected with the relief pressure valve exit. The rotation of the motor 2 is output to the electric cylinder 4 through the speed reducer 3, and then the linear motion is carried out through the force sensor 5 and the push rod 6. The pressure sensor 8 tests the outlet pressure of the pressure reducing valve 9, controls the motor 2 to rotate forwards or backwards through a control program, pushes or contracts the ejector rod 6, adjusts the compression amount of the main spring 11 of the pressure reducing valve, and finally adjusts the outlet pressure of the pressure reducing valve 9. After the pressure at the outlet of the pressure reducing valve 9 is adjusted, the spring sleeve 7 is rotated, and when the force sensor 5 is zero, the spring sleeve 7 is stopped rotating. When the outlet pressure of the pressure reducing valve 9 is adjusted, the data of the pressure sensor 8 and the force sensor 5 are recorded simultaneously.

Next, the operation of the present invention will be described.

According to the difference value between the value of the pressure sensor 8 at the outlet of the pressure reducing valve and the target value, the control program drives the motor 2 to rotate forwards or reversely, the high rotating speed and the low torque of the motor 2 are converted into low rotating speed and high torque output through the speed reducer 3, the speed reducer 3 drives the electric cylinder 4 to perform linear extension or retraction movement, the electric cylinder 4 records the spring force in the real-time adjusting process through the force sensor 5, and the electric cylinder 4 drives the ejector rod 6 to compress the main spring 11 of the pressure reducing valve through linear movement and adjust the pressure at the outlet of the pressure reducing valve 9 to reach the target value.

The invention is applied to the accurate regulation of the pressure at the outlet of a pressure reducing valve 9 which directly loads a spring in an aerospace propulsion system, the pressure reducing valve 9 is connected into an automatic auxiliary debugging device, the inlet is connected with a high-pressure gas cylinder, and the outlet is connected with a pressure sensor 8; the ejector rod 6 is abutted to the main spring 11 of the pressure reducing valve, the pressure at the outlet of the pressure reducing valve 9 is acquired by means of a control program, the motor 2 is controlled to rotate, the electric cylinder 4 is further controlled to extend and retract, the elasticity of the main spring 11 of the pressure reducing valve is accurately controlled, and finally the outlet pressure of the pressure reducing valve 9 is accurately adjusted.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.