CN212030835U

CN212030835U - Pneumatic detection device of mechanical seal gas tightness

Info

Publication number: CN212030835U
Application number: CN202020862145.3U
Authority: CN
Inventors: 邓兆博; 王欣; 王臣; 李寿东; 张明明; 周鑫琦
Original assignee: Shandong Huacheng Sino German Transmission Equipment Co ltd
Current assignee: Shandong Huacheng Sino German Transmission Equipment Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-11-27
Anticipated expiration: 2030-05-21

Abstract

The utility model provides a pneumatic detection device of mechanical seal gas tightness, belongs to mechanical seal gas tightness and detects technical field. The method is characterized in that: the automatic water-saving device comprises a bracket, a lifting support mechanism, a pressing mechanism and a detection cover (10), wherein the detection cover (10) with an opening at the top is placed on the upper portion of the bracket, water is filled in the detection cover (10), the lifting support mechanism is vertically arranged above the bracket, the pressing mechanism for vertically outputting power is installed at the top of the lifting support mechanism, a tooling base (5) is arranged below the pressing mechanism, longitudinal sliding devices are arranged on the two sides of the tooling base (5) on the lifting support mechanism, an inflating device is connected with the interior of the tooling base (5) through a pipeline, and a sealing ring (16) to be detected is placed on the upper portion of the. The utility model discloses a water logging formula, and carry out relative inclosed inflation to the sealing ring in the water logging, the appearance condition through aerifing bubble around the back sealing ring is quick, and the gas tightness of effectual judgement sealing ring also can be directly perceived, the concrete position of quick discovery sealing ring gas leakage.

Description

Pneumatic detection device of mechanical seal gas tightness

Technical Field

The utility model provides a pneumatic detection device of mechanical seal gas tightness, belongs to mechanical seal gas tightness and detects technical field.

Background

In the production process of mechanical seal, because the sealing ring is formed by assembling the metal ring seat and the resin ring in an interference fit manner and then coating a friction pair with glue and hot-assembling, the problems of nonuniform glue coating, deformation of the ring seat and the like inevitably occur, and the problems easily cause the phenomenon that the sealing performance does not reach the standard. Therefore, after the hot-assembling is completed by the sealing ring, the sealing ring needs to be subjected to air tightness detection, the current detection mode is complicated, the equipment structure is complex, the air tightness result is not visual enough, the position of specific air leakage cannot be accurately judged, certain difficulty is brought to the air tightness detection of the sealing ring, and the problem that whether the air tightness of the sealing ring is qualified or not is to be solved urgently at present is solved by how to effectively, quickly and visually detect.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the pneumatic type air tightness detection device capable of effectively, quickly and visually detecting whether the air tightness of the sealing ring is qualified is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a pneumatic type gas tightness detection device which characterized in that: including support, lift supporting mechanism, hold down the mechanism and detect the cover, open-top's detection cover is placed on support upper portion, and splendid attire water in the detection cover, support top are equipped with the lift supporting mechanism of putting of erectting, and the mechanism that pushes down of the vertical output power of lift supporting mechanism's top installation is equipped with the frock base below of pushing down the mechanism, and the frock base both sides longitudinal sliding installs on lift supporting mechanism, through the tube coupling aerating device in the frock base, and the sealing ring that awaits measuring is placed on frock base upper portion.

The utility model discloses change traditional airtight detection mode of sealing ring, adopt the water logging formula, and carry out relative inclosed inflation to the sealing ring in the water logging, the appearance condition through aerifing bubble around the back sealing ring is quick, and the gas tightness of effectual judgement sealing ring also can be directly perceived, the concrete position of quick discovery sealing ring gas leakage.

The lifting support mechanism comprises a guide pillar and a movable plate which are vertically arranged, the bottom of the guide pillar is fixedly connected with a support, the movable plate is horizontally arranged on the guide pillar, two end parts of the movable plate are sleeved on the guide pillar through a copper sleeve, a tooling base is arranged at the top of the movable plate, and an elastic assembly is sleeved on the guide pillar below the movable plate.

Through the restoring force of the elastic component, after the pressing mechanism is closed and the pressing force application action is stopped, the tool base can be restored to the initial position under the restoring force of the elastic component and leaves the liquid level range of the detection cover.

The elastic component is a pressure spring, the upper part of the pressure spring is used for pressing the movable plate, and the lower part of the pressure spring is connected with the top of the bracket.

The fixture base top be equipped with the constant head tank, the bottom is equipped with the connecting bolt who connects lift supporting mechanism, inside sets up the through-hole of intercommunication constant head tank and side, side through-hole export is through tube coupling aerating device.

Form a relative sealed space through the constant head tank between sealing ring bottom and sealing ring inside, then aerify in to the sealing ring through air vent and aerating device, can be quick, effectual detection sealing ring's gas tightness.

The inflation device comprises an inflation tube and an inflation valve, one end of the inflation tube is connected with the tool base, the other end of the inflation tube is connected with the inflation valve, the inflation valve is connected with the air supply device, the inflation valve is installed on the support, and the outlet of the inflation valve is inserted into one side of the detection cover. The inflation tube is preferably a hose.

The pressing mechanism comprises an air cylinder, the upper part of the air cylinder is installed on the support, and the lower part of the air cylinder is a tooling base right below the output end.

And a pressing plate is arranged at the output end of the air cylinder. The pressure plate applies force to the sealing ring uniformly.

The pressing mechanism and the sealing ring to be tested are provided with a pressing protection device, and the pressing protection device comprises a pressing block and a rubber pad which are sequentially arranged from top to bottom. Because the sealing ring is the interference equipment of becket and resin ring, the one side of resin ring is comparatively fragile, and the cylinder directly pushes down and destroys the sealing ring easily, so, through rubber pad and briquetting cooperation, can guarantee that the even atress of sealing ring is not broken. And can ensure that the inflated gas has no leakage.

And a rubber pad with a hole in the middle is arranged between the sealing ring to be tested and the tool base.

The detection cover is a transparent organic glass cover, and the bottom of the detection cover is fixed on the support. The glass transparent cover is adopted, so that the bubble change in the detection process can be observed at any time, and the appearance of the bubble can be observed conveniently from all directions.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

Drawings

Fig. 1 is a schematic structural view of a pneumatic air tightness detection device.

The device comprises a cylinder 1, a cylinder 2, a top plate 3, a nut 4, a guide pillar 5, a tool base 501, a connecting bolt 502, a vent hole 503, a positioning groove 6, a copper sleeve 7, a moving plate 8, an inflation valve 9, a bottom plate 10, a detection cover 11, supporting legs 12, a pressure spring 13, a rubber pad 14, a pressing block 15, a pressing plate 16 and a sealing ring to be detected.

Detailed Description

Fig. 1 is a preferred embodiment of the present invention, and the present invention will be further explained with reference to fig. 1.

Referring to figure 1: the utility model provides a pneumatic type gas tightness detection device, which comprises a bracket, the lift supporting mechanism, hold down the mechanism and detect cover 10, open-top's detection cover 10 is placed on support upper portion, it adorns water in the cover 10 to detect, the support top is equipped with erects the lift supporting mechanism who puts, the mechanism that pushes down of vertical output power of lift supporting mechanism's top installation, the below of mechanism that pushes down is equipped with fixture base 5, fixture base 5 both sides longitudinal sliding installs on the lift supporting mechanism, through the tube coupling aerating device in fixture base 5, the sealing ring 16 that awaits measuring is placed on fixture base 5 upper portion. A rubber pad with a hole in the middle is also arranged between the sealing ring 16 to be measured and the tool base 5.

The lifting support mechanism comprises a guide pillar 4 and a movable plate 7 which are vertically arranged, the bottom of the guide pillar 4 is fixedly connected with a support, the movable plate 7 is horizontally arranged on the guide pillar 4, two end parts of the movable plate are sleeved on the guide pillar 4 through a copper sleeve 6, a tooling base 5 is arranged at the top of the movable plate 7, and an elastic assembly is sleeved on the guide pillar 4 below the movable plate 7. The elastic component is a pressure spring 12, the upper part of the pressure spring 12 presses the moving plate 7, and the lower part is connected with the top of the bracket.

The top of the tooling base 5 is provided with a positioning groove 503, the bottom of the tooling base is provided with a connecting bolt 501 connected with the lifting support mechanism, the inside of the tooling base is provided with a through hole communicated with the positioning groove 503 and the side surface, and the outlet of the through hole on the side surface is connected with an inflating device through a pipeline. The inflation device comprises an inflation tube and an inflation valve 8, one end of the inflation tube is connected with the tooling base 5, the other end of the inflation tube is connected with the inflation valve 8, the inflation valve 8 is connected with the air supply device through the inflation valve 8, the inflation valve 8 is installed on the support, and the outlet of the inflation valve 8 is inserted into one side of the detection cover 10.

The pushing mechanism comprises a cylinder 1, the upper part of the cylinder 1 is installed on the support, and the lower part of the cylinder is a tooling base 5 right below the output end. The output end of the cylinder 1 is provided with a pressure plate 15. A pressing protection device is arranged between the pressing mechanism and the sealing ring 16 to be tested, and the pressing protection device comprises a pressing block 14 and a rubber pad 13 which are sequentially arranged from top to bottom. The support comprises legs 11 and a bottom plate 9, and the legs 11 are arranged at the bottom of the bottom plate 9 which is horizontally placed. The detection cover 10 is a transparent glass cover, and the bottom of the detection cover 10 is fixed on the support.

The working principle and the working process are as follows: when the air tightness detection is carried out, a certain amount of water is injected into the glass detection cover 10; the sealing ring base is downwards arranged on a positioning groove 503 at the top of the tooling base 5, the longitudinal depth of the positioning groove 503 is smaller than the thickness of the sealing ring, the sealing edge of the sealing ring 16 to be tested is completely exposed out of the upper surface of the positioning groove 503, because the material of the sealing ring is fragile, in order to prevent the air cylinder from pressing down to damage the top surface of the sealing ring, a rubber pad 13 is padded on the friction surface at the top of the sealing ring 16 to be tested, the friction surface is prevented from being damaged, and a pressing block 14 is; then, a pipeline valve of the cylinder 1 is opened, and the cylinder 1 descends to be in contact with the pressing block 14; at the moment, the moving plate 7, the tool base 5, the sealing ring 16 to be tested and the pressing block 14 are immersed into water under the guidance of the guide pillar 4 along with the descending of the cylinder 1, and the interior of the sealing ring 16 to be tested is completely sealed with the outside; and opening an inflation valve 8 communicated with the tool base 5, inflating the sealing ring 16 to be detected through an air vent 502 in the tool base 5, wherein if the sealing ring is well sealed, no bubbles are generated around the sealing ring 16 to be detected, otherwise, if bubbles are generated, the sealing performance does not reach the standard. The equipment can quickly detect the sealing performance of the sealing ring, can visually display the position which is not up to standard and is sealed, namely, the position where bubbles exist, and has the characteristics of high working efficiency, simple operation and the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a pneumatic detection device of mechanical seal gas tightness which characterized in that: the automatic water-saving device comprises a bracket, a lifting support mechanism, a pressing mechanism and a detection cover (10), wherein the detection cover (10) with an opening at the top is placed on the upper portion of the bracket, water is filled in the detection cover (10), the lifting support mechanism is vertically arranged above the bracket, the pressing mechanism for vertically outputting power is installed at the top of the lifting support mechanism, a tooling base (5) is arranged below the pressing mechanism, longitudinal sliding devices are arranged on the two sides of the tooling base (5) on the lifting support mechanism, an inflating device is connected with the interior of the tooling base (5) through a pipeline, and a sealing ring (16) to be detected is placed on the upper portion of the.

2. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: the lifting support mechanism comprises a guide pillar (4) and a movable plate (7) which are vertically arranged, the bottom of the guide pillar (4) is fixedly connected with a support, the movable plate (7) is horizontally arranged on the guide pillar (4), two end parts of the movable plate are sleeved on the guide pillar (4) through copper sleeves (6), a tooling base (5) is arranged at the top of the movable plate (7), and an elastic assembly is sleeved on the guide pillar (4) below the movable plate (7).

3. The pneumatic detection device for the air tightness of the mechanical seal according to claim 2, characterized in that: the elastic component is a pressure spring (12), the upper part of the pressure spring (12) pushes against the moving plate (7), and the lower part of the pressure spring is connected with the top of the bracket.

4. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: the tool base (5) top be equipped with constant head tank (503), the bottom is equipped with connecting bolt (501) of connecting lift supporting mechanism, inside sets up the through-hole of intercommunication constant head tank (503) and side, side through-hole export is through tube coupling aerating device.

5. The pneumatic detection device for mechanical seal airtightness according to claim 1 or 4, wherein: the inflating device comprises an inflating tube and an inflating valve (8), one end of the inflating tube is connected with the tooling base (5), the other end of the inflating tube is connected with the inflating valve (8), the inflating valve (8) is connected with the air supply device through the inflating valve (8), the inflating valve (8) is installed on the support, and the outlet of the inflating valve (8) is inserted into one side of the detection cover (10).

6. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: the pressing mechanism comprises a cylinder (1), the upper part of the cylinder (1) is installed on the support, and the lower part of the cylinder is a tooling base (5) right below the output end.

7. The pneumatic detection device for the air tightness of the mechanical seal according to claim 6, characterized in that: the output end of the air cylinder (1) is provided with a pressing plate (15).

8. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: the device is characterized in that a pressing protection device is arranged between the pressing mechanism and the sealing ring (16) to be tested, and the pressing protection device comprises a pressing block (14) and a rubber pad (13) which are sequentially arranged from top to bottom.

9. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: and a rubber pad with a hole in the middle is arranged between the sealing ring (16) to be tested and the tool base (5).

10. The pneumatic detection device for the air tightness of the mechanical seal according to claim 1, characterized in that: the detection cover (10) is a transparent glass cover, and the bottom of the detection cover (10) is fixed on the support.