阅读说明：本技术 一种双锥活门可调压紧力的密封试验装置 (Sealing test device with adjustable pressing force of double-cone valve ) 是由 马瑞泽 黄启耘 张秋菊 于 2021-01-04 设计创作，主要内容包括：本发明为一种双锥活门可调压紧力的密封试验装置,涉及航空机械精密装配试验技术领域,解决了现有技术中的双锥活门检测试验装置无法调节双锥活门试验时所需的压紧力,进而影响其试验效果的技术问题。技术特征包括定位组件,所述定位组件内安装有调节组件；所述调节组件包括设置在定位组件一端的定位管接头组件和设置在定位组件另一端的调节管接头组件,所述定位管接头组件和所述调节管接头组件之间的空间为双锥活门的安装空间。具有能够提供靠近弹簧一侧锥面密封试验所要求的定值压紧力,对其进行检测试验,满足试验要求的有益效果。(The invention discloses a sealing test device with adjustable pressing force for a double-cone valve, relates to the technical field of precision assembly tests of aviation machinery, and solves the technical problem that the pressing force required by the double-cone valve test device in the prior art cannot be adjusted so as to influence the test effect. The technical characteristics comprise that the device comprises a positioning component, wherein an adjusting component is arranged in the positioning component; the adjusting assembly comprises a positioning pipe joint assembly arranged at one end of the positioning assembly and an adjusting pipe joint assembly arranged at the other end of the positioning assembly, and the space between the positioning pipe joint assembly and the adjusting pipe joint assembly is the installation space of the double-cone valve. The constant-value pressing force required by the sealing test of the conical surface close to one side of the spring can be provided, the detection test is carried out on the constant-value pressing force, and the test requirement is met.)

1. The utility model provides a sealed test device of adjustable packing force of bipyramid valve which characterized in that includes:

the positioning assembly is internally provided with an adjusting assembly;

the adjusting assembly comprises a positioning pipe joint assembly arranged at one end of the positioning assembly and an adjusting pipe joint assembly arranged at the other end of the positioning assembly, and the space between the positioning pipe joint assembly and the adjusting pipe joint assembly is the installation space of the double-cone valve.

2. The sealing test device for the adjustable pressing force of the double-cone valve is characterized in that the positioning assembly comprises a body (103), the body (103) is of a hollow rotary structure, the outer surface of the body (103) is in a step form, a flat groove for clamping a wrench is formed in the body (103), two ends of an inner cavity of the body (103) are provided with threads, and a smooth circumferential surface is arranged between the threads at the two ends.

3. The apparatus for testing the sealing force of a double-cone valve according to claim 2, wherein said positioning pipe joint assembly comprises:

the positioning pipe joint (101) is provided with a first end in threaded connection with the body (103) and a second end in connection with a tester pipeline, a hexagonal body is arranged between the first end and the second end, the bottom surface of the hexagonal body close to the first end is attached to the top surface of the body (103), and a first sealing ring (102) for sealing a gap between the positioning pipe joint (101) and the body (103) is embedded at the first end of the positioning pipe joint (101);

a through stepped hole is formed in the positioning pipe joint (101), and the second end of the positioning pipe joint (101) is provided with a 74-degree conical surface sealed with a tester pipeline;

the pressing sleeve (206) is inserted into the step hole at the first end of the positioning pipe joint (101), and a step through hole is formed in the pressing sleeve (206);

the force measuring rod (207) is inserted into a step hole at the second end of the positioning pipe joint (101), and the bottom surface of the force measuring rod (207) is attached to the top end of the pressing sleeve (206); and

the first end of the spring seat (204) is a cylinder with a T-shaped inner hole, and a compression spring (205) is sleeved at the first end of the spring seat (204); the second end of the spring seat (204) is a cylinder with a flat groove, and the end of the second end of the spring seat (204) is provided with a boss matched with the double-cone valve.

4. The apparatus for testing the sealing force of a double-cone valve according to claim 2, wherein said adjusting pipe joint assembly comprises:

an adjusting pipe joint (201), the adjusting pipe joint (201) comprising: the testing tool comprises a first split body, a second split body, a third split body and a fourth split body which are sequentially arranged, wherein the first split body is a cylinder, the second split body is in threaded fit with the inside of the body (103), the third split body is a wrench opening for matching a wrench, the fourth split body is an external thread in threaded fit with a tester pipeline, and the end part of the fourth split body is a 74-degree conical surface sealed with the tester pipeline;

the inside step through-hole that is equipped with of adjusting pipe joint (201), the step through-hole is including the first through-hole, second through-hole, third through-hole and the fourth through-hole that arrange in proper order, first through-hole be with the smooth periphery of bipyramid valve complex, the second through-hole has the internal thread, the third through-hole intercommunication second through-hole and fourth through-hole, the bottom that is close to the third through-hole in the second through-hole inlays and is equipped with sealed pad (202).

5. The device for testing the sealing force of the double-cone valve according to claim 4, which comprises: and a second sealing ring (104) is embedded on the body (103) and between the first split body and the body (103), and a third sealing ring (203) is embedded on the end surface of the first through hole.

6. The device for testing the sealing of the adjustable pressing force of the double-cone valve according to claim 4, characterized in that the device for testing the sealing of the adjustable pressing force of the double-cone valve further comprises a support (105), wherein the support (105) is sleeved on the adjusting pipe joint (201) and is attached to the end face of the body (104).

Technical Field

The invention relates to the technical field of precision assembly tests of aviation machinery, in particular to a sealing test device with an adjustable pressing force of a double-cone valve.

Background

The valve is a valve part for realizing basic functions of direction control, pressure control or flow control by means of the movement of the valve body, in the prior art, only the conical surface seal at one side, far away from the spring, of the double-cone valve can be detected, and because the constant-value pressing force required by the conical surface seal test at one side, close to the spring, cannot be provided, the detection test cannot be carried out on the conical surface seal, and the test requirements cannot be met.

Disclosure of Invention

The invention provides a sealing test device with adjustable pressing force for a double-cone valve, aiming at solving the technical problems that in the prior art, only the sealing of the conical surface of the double-cone valve on the side far away from a spring can be detected, and the sealing test device cannot meet the test requirements because the sealing test device cannot provide the fixed-value pressing force required by the sealing test of the conical surface on the side close to the spring, cannot perform the detection test on the sealing test of the conical surface, and cannot meet the test requirements.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a sealing test device of adjustable packing force of bipyramid valve includes:

the positioning assembly is internally provided with an adjusting assembly;

the adjusting assembly comprises a positioning pipe joint assembly arranged at one end of the positioning assembly and an adjusting pipe joint assembly arranged at the other end of the positioning assembly, and the space between the positioning pipe joint assembly and the adjusting pipe joint assembly is the installation space of the double-cone valve.

Furthermore, the positioning assembly comprises a body which is of a hollow rotary body structure, the outer surface of the body is in a step form, a flat-shaped groove used for clamping a wrench is formed in the body, threads are arranged at two ends of an inner cavity of the body, and a smooth circumferential surface is arranged between the threads at the two ends.

Further, the positioning pipe joint assembly includes:

the positioning pipe joint is provided with a first end in threaded connection with the body and a second end in connection with a tester pipeline, a hexagonal body is arranged between the first end and the second end, the bottom surface of the hexagonal body close to the first end is attached to the top surface of the body, and a first sealing ring for sealing a gap between the positioning pipe joint and the body is embedded in the first end of the positioning pipe joint;

a through stepped hole is formed in the positioning pipe joint, and the second end of the positioning pipe joint is provided with a 74-degree conical surface sealed with a tester pipeline;

the pressing sleeve is inserted into the step hole at the first end of the positioning pipe joint, and a step through hole is formed in the pressing sleeve;

the force measuring rod is inserted into the step hole at the second end of the positioning pipe joint, and the bottom surface of the force measuring rod is attached to the top end of the pressing sleeve;

the first end of the spring seat is a cylinder with a T-shaped inner hole, and a compression spring is sleeved at the first end of the spring seat; the second end of the spring seat is a cylinder with a flat groove, and the end of the second end of the spring seat is provided with a boss matched with the double-cone valve.

Further, the regulator union assembly comprises:

an adjustment coupling, the adjustment coupling comprising: the testing device comprises a first split, a second split, a third split and a fourth split which are sequentially arranged, wherein the first split is a cylinder, the second split is in threaded fit with the inside of the body, the third split is a wrench opening for matching a wrench, the fourth split is an external thread in threaded fit with a tester pipeline, and the end part of the fourth split is a 74-degree conical surface sealed with the tester pipeline;

the adjusting pipe joint is characterized in that a step through hole is formed in the adjusting pipe joint and comprises a first through hole, a second through hole, a third through hole and a fourth through hole which are sequentially arranged, the first through hole is a smooth circumferential surface matched with the double-cone valve, the second through hole is provided with an internal thread, the third through hole is communicated with the second through hole and the fourth through hole, and a sealing gasket is embedded at the bottom, close to the third through hole, in the second through hole.

Furthermore, a second sealing ring is embedded on the body and between the first split body and the body, and a third sealing ring is embedded on the end face of the first through hole.

Furthermore, the sealing test device with the adjustable pressing force of the double-cone valve further comprises a support, wherein the support is sleeved on the adjusting pipe joint and attached to the end face of the body.

The invention has the following beneficial effects:

according to the sealing test device with the adjustable pressing force for the double-cone valve, the positioning pipe joint assembly and the adjusting pipe joint assembly are arranged, the pressing force of the clamp can be measured by the force measuring device through the positioning pipe joint assembly, the pressing force can be adjusted by rotating the adjusting pipe joint assembly, so that the conical surface seal on one side, far away from the spring, of the double-cone valve can be detected, the fixed-value pressing force required by the conical surface seal test on one side, close to the spring, can be provided, the detection test can be carried out on the conical surface seal, and the test requirements can be met.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a sealing test device with adjustable pressing force of a double-cone valve, provided by the invention;

FIG. 2 is a schematic cross-sectional view of a sealing test device with adjustable pressing force of a double-cone valve according to the present invention;

fig. 3 is a schematic structural diagram of the double-cone valve mounting structure of the sealing test device with the double-cone valve capable of adjusting pressing force.

The reference numerals in the figures denote:

101. positioning the pipe joint; 102. a first seal ring; 103. a body; 104. a second seal ring; 105. a support; 201. adjusting the pipe joint; 202. a gasket; 203. a third seal ring; 204. a spring seat; 205. a compression spring; 206. a compression sleeve; 207. a force measuring rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a sealing test device for a double-cone valve with adjustable pressing force comprises:

the positioning assembly is internally provided with an adjusting assembly;

the adjusting assembly comprises a positioning pipe joint assembly arranged at one end of the positioning assembly and an adjusting pipe joint assembly arranged at the other end of the positioning assembly, the space between the positioning pipe joint assembly and the adjusting pipe joint assembly is the installation space of the double-cone valve, and the pressing force of the double-cone valve far away from one side of the spring is adjusted by using the adjusting pipe joint assembly.

The working principle is as follows: through setting up locating pipe joint subassembly and regulation pipe joint subassembly, the packing force of dynamometry utensil accessible locating pipe joint subassembly measurement anchor clamps to through rotatory regulation pipe joint subassembly adjustment packing force size, make this disclosure can keep away from the conical surface of spring one side to the bipyramid valve sealed detect, and can provide the required definite value packing force of the sealed test of the conical surface of one side of being close to the spring, carry out the testing to it, satisfy experimental requirement.

The positioning assembly comprises a body 103, the body 103 is a hollow rotary body structure, the outer surface of the body 103 is in a step form, a flat-shaped groove used for clamping a wrench is formed in the body 103, threads are arranged at two ends of an inner cavity of the body 103, and a smooth circumferential surface is arranged between the threads at the two ends.

The positioning pipe joint assembly comprises:

a positioning pipe joint 101, wherein the positioning pipe joint 101 is provided with a first end in threaded connection with the body 103 and a second end in connection with a tester pipeline, a hexagon is arranged between the first end and the second end, the bottom surface of the hexagon close to the first end is attached to the top surface of the body 103, and a first sealing ring 102 for sealing a gap between the positioning pipe joint 101 and the body 103 is embedded at the first end of the positioning pipe joint 101;

a through stepped hole is formed in the positioning pipe joint 101, and the second end of the positioning pipe joint 101 is provided with a 74-degree conical surface sealed with a tester pipeline;

the pressing sleeve 206 is inserted into the stepped hole at the first end of the positioning pipe joint 101, and a stepped through hole is formed in the pressing sleeve 206;

the force measuring rod 207 is inserted into a step hole at the second end of the positioning pipe joint 101, and the bottom surface of the force measuring rod 207 is attached to the top end of the pressing sleeve 206;

a spring seat 204, a first end of which is a cylinder with a T-shaped inner hole, and a compression spring 205 is sleeved at the first end of the spring seat 204; the second end of the spring seat 204 is a cylinder with a flat groove, and the second end of the spring seat 204 is provided with a boss matched with the double-cone valve.

The regulator union assembly includes:

a regulator union 201, the regulator union 201 comprising: the testing device comprises a first split, a second split, a third split and a fourth split which are sequentially arranged, wherein the first split is a cylinder, the second split is in threaded fit with the inside of the body 103, the third split is a wrench opening for matching with a wrench, the fourth split is an external thread in threaded fit with a tester pipeline, and the end part of the fourth split is a 74-degree conical surface sealed with the tester pipeline;

the inside step through-hole that is equipped with of regulation coupling 201, the step through-hole is including the first through-hole, second through-hole, third through-hole and the fourth through-hole that arrange in proper order, first through-hole be with the smooth periphery of bipyramid valve complex, the second through-hole has the internal thread, the third through-hole intercommunication second through-hole and fourth through-hole, the bottom that is close to the third through-hole in the second through-hole inlays and is equipped with sealed pad 202.

A second seal ring 104 is fitted to the body 103 between the first split body and the body 103, and a third seal ring 203 is fitted to an end surface of the first through hole.

The sealing test device with the adjustable pressing force of the double-cone valve further comprises a support 105, wherein the support 105 is sleeved on the adjusting pipe joint 201 and attached to the end face of the body 103.

Specifically, an adjusting pipe joint 201 is screwed on a double-cone valve thread, the double-cone valve is connected and sealed by pressing a sealing gasket 202 and a sealing ring 203, one end of a body 103 is screwed on an external thread at the bottom of the adjusting pipe joint 201, a second sealing ring 104 is pressed tightly, a boss of a spring seat 204 is propped against the position of the double-cone valve needing pressing and tightening force, a compression spring 205 and a pressing sleeve 206 are sequentially sleeved on a cylinder with a T-shaped inner hole of the spring seat 204, a positioning pipe joint 101 provided with a first sealing ring 102 is in threaded connection with the body 103, finally, one side of a 74-degree conical surface of the adjusting pipe joint 201 is inserted into the inner hole of a support 105, and a force measuring rod 207 is placed in the inner hole of the positioning pipe joint 101 and propped against the pressing sleeve 206; the force measuring device measures pressing force through the force measuring rod 207, if the pressing force is larger, the adjusting pipe joint 201 is rotated to move towards the outside of the body 103, at the moment, the movement directions of the product and the spring seat 204 are consistent with the movement direction of the adjusting pipe joint 201, the compression amount of the compression spring 205 is reduced, and the pressing force is reduced; otherwise, the pressing force is increased. After the pressing force is adjusted, the support 105 and the force measuring rod 207 are taken down, the positioning pipe joint 101 and the adjusting pipe joint 201 are connected with a pipeline of the tester, and the test can be completed under the pressing force required by the product. Therefore, the pressing force required by the product to be tested is provided, and the part product can be tested under the required pressing force; when the force measuring device is used for measuring pressing force, the support 105 can be used for enabling the present disclosure to be more stable and facilitating force measurement, and after the force measurement is finished, the support 105 can be detached.

When testing bipyramid valve, utilize the locating pipe coupling subassembly and make the case reach required pretightning force with the cooperation of adjusting the pipe coupling subassembly, locating pipe coupling 101, adjust the pipe coupling 201, body 103, it all is equipped with the through-hole of intercommunication to compress tightly cover 206 and spring holder 204, like this when this disclosure and tester pipe connection, can normally walk oil or gas, in order to guarantee experimental normal clear, and simultaneously, first sealing washer 102 has been set up, second sealing washer 104 and third sealing washer 203 can reach the sealing action, prevent that fluid from spilling or the pressure reduction that the gas leakage produced, and influence the actual test effect.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.