CN210221415U

CN210221415U - Tightness detection device for intermediate body of turbocharger

Info

Publication number: CN210221415U
Application number: CN201921494961.7U
Authority: CN
Inventors: Guolong Wang; 王国龙
Original assignee: Wuxi Speed Turbine Technology Co Ltd
Current assignee: Wuxi Speed Turbine Technology Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-03-31
Anticipated expiration: 2029-09-09

Abstract

The utility model relates to the field of turbochargers, in particular to a tightness detection device for an intermediate body of a turbocharger; the liftable platform is arranged, so that the labor intensity of workers in the sealing detection work of the intermediate body can be reduced, the sealing mechanism can rapidly realize the sealing or the dismounting of the intermediate body along a relatively fixed movement track by arranging the sealing mechanism, the efficiency of the sealing process and the dismounting process of the intermediate body is improved, the intermediate body can be inflated by arranging the inflating component, and the leak detection pool can be matched with the gas filled into the intermediate body to realize the sealing detection of the intermediate body; the device for detecting the tightness of the intermediate body effectively solves the technical problems that in the prior art, the labor intensity of workers is high and the detection efficiency of the intermediate body for batch detection is low in the process of carrying out the tightness detection on the intermediate body in batches.

Description

Tightness detection device for intermediate body of turbocharger

Technical Field

The utility model relates to a turbo charger field specifically is a leakproofness detection device for turbo charger's midbody.

Background

The intermediate body is one of the important parts of the turbocharger. The intermediate body has the main function that the shaft, the floating bearing, the direct thrust bearing or the fixed sleeve shaft seal and other parts are arranged in the inner cavity of the intermediate body, so that the parts can rotate in the inner cavity of the intermediate body at a high speed. The intermediate body is generally made by casting and is generally provided with an oil chamber and a water chamber according to the requirements of various parts inside the intermediate body, so that the intermediate body needs to be subjected to tightness detection before being actually assembled into the turbocharger. The tightness detection of the intermediate body is usually realized by adopting a simple sealing part and an inflating device, each through hole of the intermediate body is sealed by the sealing part, and then the inflating device is connected with one through hole of the intermediate body to inflate the intermediate body; the intermediate body was immersed in the liquid, and it was observed whether or not bubbles were present at other positions of the intermediate body except for the through-hole sealed by the sealing member.

The device for detecting the tightness of the intermediate body in the prior art has a single function, and workers need to manually arrange a plurality of sealing components at each through hole of the intermediate body; after one sealing body passes the detection, a plurality of sealing parts arranged on the intermediate body are taken down by workers, so that the time for the workers to carry out the tightness detection on the intermediate body is longer; if a plurality of intermediates are monitored in batches by adopting the tightness detection device in the prior art, the working time of workers is increased, and the labor intensity is increased; meanwhile, the efficiency of batch detection of a plurality of intermediates is low, and the manufacturing cost of the turbocharger is increased. Therefore, the device for detecting the tightness of the intermediate body in the prior art has the technical problems that the labor intensity of workers is high and the detection efficiency of the intermediate body detected in batch is low in the process of detecting the tightness of the intermediate body in batch.

SUMMERY OF THE UTILITY MODEL

For the device that is used for the leakproofness of midbody among the solution prior art to detect, carry out the in-process that the leakproofness detected to the midbody in batches, have that staff's intensity of labour is big, and the technical problem that detection efficiency is low of the midbody that detects in batches, the utility model provides a leakproofness detection device for turbocharger's midbody.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to one aspect of the utility model, a tightness detection device for an intermediate of a turbocharger is provided, which is characterized by comprising a liftable platform, a leakage detection pool, a sealing mechanism and an inflation component; the liftable platform is arranged in the vertical direction, is arranged above the leakage detection pool and extends into the leakage detection pool downwards along the vertical direction; the sealing mechanism is movably arranged on the lifting platform; the sealing mechanism comprises a plurality of elbow clamps, and a sealing head is arranged on each elbow clamp; the elbow clamps are respectively arranged on the liftable platform, and any sealing head arranged on the elbow clamps can move towards the center of the platform along the edge of the platform; the inflatable component is movably arranged on the liftable platform; the inflation mechanism can movably reciprocate along the direction from the edge of the platform to the center of the platform.

Further, the liftable platform comprises a support frame, a movable connecting plate, a movable mounting fence, a guide mechanism and a lifting mechanism; the support frame is arranged in the vertical direction and is arranged above the leakage detection pool; the lifting mechanism is arranged at the top of the support frame and moves up and down along the vertical direction; the movable connecting plate is arranged at the top end of the lifting mechanism, and the moving direction of the movable connecting plate is the same as that of the lifting mechanism; one end of the guide mechanism is arranged at the bottom end of the movable mounting plate, the other end of the guide mechanism penetrates through the support frame in a downward movable manner along the vertical direction, and the moving direction of the guide mechanism is the same as that of the movable connecting plate; the movable mounting fence is arranged at the lower part of the support frame, the other end of the guide mechanism is connected with the movable mounting fence, and the moving direction of the movable mounting fence is the same as that of the guide mechanism; the sealing mechanism and the inflation component are respectively arranged in the movable mounting fence.

Further, the movable mounting rail comprises a top plate, a bottom plate and a plurality of supporting columns; any one of the supporting columns is arranged in the vertical direction, the top plate and the bottom plate are parallel to each other, and the top plate and the bottom plate form a frame shape through the plurality of supporting columns; the top plate is connected with the other end of the guide mechanism; the sealing mechanism and the inflation component are respectively arranged on the bottom plate.

Further, the guide mechanism comprises a guide sleeve and a guide rod; the guide sleeve is arranged on the support frame, and the opening direction of the guide sleeve is parallel to the vertical direction; the mobilizable setting of guide bar is in the guide sleeve, wherein one end of guide bar with swing joint's bottom is connected, wherein the other end mobilizable of guide bar pierces through the support frame, and with the movable mounting fence is connected, the moving direction of guide bar with swing joint's moving direction is the same.

Further, the lifting mechanism comprises a lifting cylinder and a lifting rod; the lifting cylinder is arranged on the support frame, and the lifting rod is movably connected with the lifting cylinder; one end of the lifting rod is connected with the bottom of the movable connecting plate, and the other end of the lifting rod can move in the lifting cylinder; the moving direction of the lifting rod is parallel to the vertical direction.

Furthermore, the movable connecting plate comprises a horizontal plate, a lifting mounting hole is formed in the center of the horizontal plate, and at least two guide mounting holes are formed in the edge of the horizontal plate; the lifting mechanism is detachably connected with the lifting mounting hole on the horizontal plate; the number of the guide mechanisms is the same as that of the guide mounting holes, and any one of the guide mechanisms is fixedly or detachably connected with one of the guide mounting holes.

Further, the support frame comprises a bearing plate and a plurality of bearing pillars; the plurality of bearing support columns are respectively parallel to the vertical direction, and the top ends of the plurality of bearing support columns are respectively connected with the bottom edge of the bearing plate; the bearing plate is arranged above the leakage detection pool through a plurality of bearing support columns.

Furthermore, the liftable platform still includes the fixing device who is used for fixed midbody, fixing device sets up on the bottom plate, fixing device with leave the interval between the support column, sealing mechanism with inflatable component sets up respectively fixing device with in the interval between the support column.

Further, the leakage detection pool comprises a pool bottom and a side wall, and the side wall extends upwards from the edge of the pool bottom along the vertical direction; the bottom of the pool is provided with a discharge port which can be opened and closed.

Further, the inflation component comprises an inflation connector for conducting compressed gas; at least one annular groove is formed in the inflation connector, and a sealing ring is arranged in one annular groove.

The technical scheme has the following advantages or beneficial effects:

the utility model provides a leakproofness detection device for turbocharger's midbody, through setting up the liftable platform, can reduce the intensity of labour of staff in the leakproofness detection work of midbody, through setting up sealing mechanism, make sealing mechanism can be along the relatively fixed movement track and quick realization to the sealed or demolish of midbody, the efficiency of the sealed process of midbody and demolish sealed process has been improved, through setting up inflatable element, can realize aerifing the midbody, through setting up the pool that leaks hunting, can cooperate to fill the gas in the midbody to realize the leakproofness detection to the midbody; therefore, the utility model provides a leakproofness detection device for turbo charger's midbody, the effectual device that is used for the leakproofness of midbody to detect who has solved among the prior art carries out the in-process that the leakproofness detected at the midbody in batches, has that staff's intensity of labour is big, and the technical problem that the detection efficiency is low of the midbody that detects in batches.

Drawings

Fig. 1 is a schematic structural diagram of a tightness detection device for an intermediate of a turbocharger according to an embodiment of the present invention;

fig. 2 is a top view of fig. 1.

Detailed Description

Referring to fig. 1 and 2, the device for detecting the tightness of the intermediate body of the turbocharger is characterized by comprising a liftable platform 1, a leak detection pool 2, a sealing mechanism 3 and an inflation component 4; the liftable platform 1 is arranged in the vertical direction, the liftable platform 1 is arranged above the leakage detection pool 2, and the liftable platform 1 downwards extends into the leakage detection pool 2 along the vertical direction; the sealing mechanism 3 is movably arranged on the liftable platform 1; the sealing mechanism 3 comprises a plurality of elbow clamps 301, and a sealing head is arranged on each elbow clamp 301; the elbow clamps 301 are respectively arranged on the liftable platform 1, and any sealing head arranged on the elbow clamps 301 can move towards the center of the platform 1 along the edge of the platform 1; the inflatable component 4 is movably arranged on the liftable platform 1; the inflatable member 4 is movable to reciprocate along the direction from the edge of the platform 1 to the center of the platform 1.

The liftable platform 1 is used for bearing an intermediate body of a turbocharger; the liftable platform 1 can bear one intermediate body or a plurality of intermediate bodies; correspondingly, the inflation component 4 and the sealing mechanism 3 should be respectively provided in a plurality, so that the liftable platform 1 can be used for detecting the tightness of a plurality of intermediates at the same time. In the present embodiment, for the convenience of understanding of those skilled in the art, referring to fig. 1, a scheme that a liftable platform 1 carries an intermediate body is preferably adopted for description; however, it should be understood by those skilled in the art that the solution in which one liftable platform 1 carries a plurality of intermediates is similar to the solution in which one liftable platform 1 carries one intermediate, and the difference between the two solutions is only the difference between the number of the components arranged on the liftable platform 1, and thus the effect of the solution in which one liftable platform 1 carries a plurality of intermediates is better than the effect of the solution in which one liftable platform 1 carries one intermediate.

The sealing mechanism 3 and the inflation component 4 are respectively arranged on the liftable platform 1, and when the intermediate body is arranged on the liftable platform 1, the sealing mechanism 3 can move towards the intermediate body along the horizontal direction; after the sealing mechanism 3 contacts the through hole of the intermediate body, the sealing component on the sealing mechanism 3 can seal the through hole of the intermediate body, so that the intermediate body is sealed. It should be understood that in order to facilitate mounting of inflatable member 4 on the central body, one of the through holes of the central body should be reserved for mounting of inflatable member 4. When the gas filled member 4 is mounted on the through hole of the intermediate body, the inner cavity of the intermediate body can be filled with gas through the gas filled member 4.

Referring to fig. 1 and 2, the sealing mechanism 3 includes a plurality of elbow clamps 301, and a sealing head is respectively disposed on each elbow clamp 301; when the elbow clip 301 moves towards the center of the liftable platform 1 along the edge of the liftable platform 1, the sealing head arranged on the elbow clip 301 moves together with the elbow clip 301; in this case, a central body is arranged in the central position of the platform 1, and the sealing head on one of the toggle clamps 301 can access and seal one of the through holes of the central body, thereby completing the sealing of one of the sealing heads with respect to the through hole of the central body. After the tightness of the intermediate body is detected, the elbow clamp 301 is moved towards the edge direction of the liftable platform 1 along the center of the liftable platform 1, and then the sealing head arranged on the elbow clamp 301 moves simultaneously along with the elbow clamp 301; at this time, the sealing head originally disposed on the through hole of the intermediate body is detached from the intermediate body. With the toggle clamp 301 having a relatively fixed motion trajectory along which the sealing head can move; when monitoring the intermediate body in batches, the sealing head can be quickly mounted in the corresponding through hole of the intermediate body along the relatively fixed motion track of the elbow clamp 301; if the elbow clamps 301 can move simultaneously, the sealing heads on the elbow clamps 301 can be rapidly installed in the through holes of the middle body simultaneously along the relatively fixed motion track of the elbow clamps 301; conversely, the sealing heads can be quickly disengaged from the corresponding through holes of the central body along the relatively fixed movement path of the elbow clamps 301, and if the plurality of elbow clamps 301 can be moved simultaneously, the sealing heads on the plurality of elbow clamps 301 can be quickly disengaged from the plurality of through holes of the central body along the relatively fixed movement path of the elbow clamps 301 simultaneously. Therefore, by arranging the elbow clip 301 and the sealing head arranged on the elbow clip 301, the mounting efficiency of the sealing head on the through hole of the intermediate body can be improved; if set up a plurality of elbow clamps 301 on same liftable platform 1, be favorable to better improvement sealed head to install the installation effectiveness on the through-hole of midbody.

Referring to fig. 1, the leak detection tank 2 should be filled with a liquid or solution for detecting the tightness of the intermediate, and the liftable platform 1 should be disposed above the top of the leak detection tank 2; when the liftable platform 1 moves downward along the vertical direction, a part of the liftable platform 1 bearing the intermediate body can sink into the leakage detecting pool 2. It will be appreciated that the liftable platform 1 is provided with the aforementioned sealing mechanism 3 and inflatable member 4 in addition to the intermediate body, so that when a portion of the liftable platform 1 is submerged in the leak detection tank 2, the sealing mechanism 3, the inflatable member 4 and the intermediate body can together with a portion of the liftable platform 1 be submerged in the leak detection tank 2, thereby avoiding detachment of the sealing mechanism 3 and/or the inflatable member 4 from the intermediate body. When the liftable platform 1 bears the intermediate body to carry out lifting operation relative to the leak detection pool 2, the action of the liftable platform 1 can be regarded as the work of carrying (lifting) the intermediate body to replace the working personnel, so that the labor intensity of the working personnel can be reduced; if set up a plurality of midbodies on liftable platform 1 to and corresponding a plurality of inflatable component 4 and sealing mechanism 3 of setting up, then, except can reducing staff's intensity of labour, can also improve the detection efficiency that the leakproofness of a plurality of midbodies detected.

Further, referring to fig. 1, the liftable platform 1 comprises a support frame 101, a movable connecting plate 102, a movable mounting rail 103, a guide mechanism 104 and a lifting mechanism 105; the support frame 101 is arranged in the vertical direction, and the support frame 101 is arranged above the leak detection pool 2; the lifting mechanism 105 is arranged at the top of the support frame 101, and the lifting mechanism 105 moves up and down along the vertical direction; the movable connecting plate 102 is arranged at the top end of the lifting mechanism 105, and the moving direction of the movable connecting plate 102 is the same as that of the lifting mechanism 105; one end of the guide mechanism 104 is arranged at the bottom end of the movable mounting plate, the other end of the guide mechanism 104 movably penetrates through the support frame 101 downwards along the vertical direction, and the moving direction of the guide mechanism 104 is the same as that of the movable connecting plate 102; the movable mounting rail 103 is arranged at the lower part of the support frame 101, the other end of the guide mechanism 104 is connected with the movable mounting rail 103, and the moving direction of the movable mounting rail 103 is the same as that of the guide mechanism 104; the sealing mechanism 3 and the inflation member 4 are respectively disposed in the movable mounting rail 103.

Wherein, referring to fig. 1, the supporting frame 101 should be arranged on the top of the leak detection tank 2, and the supporting frame 101 may be arranged by any structure in the prior art; in this embodiment, the preferred support frame 101 of the support frame 101 includes a bearing plate 111 and a plurality of bearing struts 121; the plurality of bearing support columns 121 are respectively parallel to the vertical direction, and the top ends of the plurality of bearing support columns 121 are respectively connected with the bottom edge of the bearing plate 111; the bearing plate 111 is disposed above the leak detection pond 2 by a plurality of bearing support columns 121. The plurality of bearing support columns 121 of the support frame 101 respectively span the leakage detection pool 2, and the bottoms of the plurality of bearing support columns 121 are respectively supported at the edge of the leakage detection pool 2; the bearing plate 111 is arranged at the tops of the bearing support columns 121, and the tops of the bearing support columns 121 are respectively connected with the bottom of the bearing plate 111; in the vertical direction, the area of the plate plane of the bearing plate 111 should be larger than the horizontal plane area of the leak detection tank 2, and a certain distance should be left between the bottom plate 133 plane of the bearing plate 111 and the top plane of the leak detection tank 2, so that the intermediate body can be conveniently installed in the movable installation column 103.

Referring to fig. 1, the lifting mechanism 105 is disposed on the support frame 101, and the lifting direction of the lifting mechanism 105 should be upward lifting in the vertical direction and downward lowering in the vertical direction; the lifting mechanism 105 can be configured by various mechanisms in the prior art, and in the embodiment, referring to fig. 1, the lifting mechanism 105 preferably adopts a lifting cylinder 115 and a lifting rod 125; the lifting cylinder 115 is arranged on the support frame 101, and the lifting rod 125 is movably connected with the lifting cylinder 115; one end of the lifting rod 125 is connected with the bottom of the movable connecting plate 102, and the other end of the lifting rod 125 can move in the lifting cylinder 115; the moving direction and the vertical direction of the lifting rod 125 are parallel to each other. The lifting mechanism 105 adopts the lifting cylinder 115 and the lifting rod 125, on one hand, the lifting cylinder 115 and the lifting rod 125 have simple and reliable structures, and particularly, when the moving speed of the lifting rod 125 is controlled, only the air pressure filled in the lifting cylinder 115 needs to be adjusted, on the other hand, the compressed gas is used as the power of the lifting rod 125, so that the compressed gas is safe, and when the lifting cylinder 115 per se or the joint of the lifting cylinder 115 and the lifting rod 125 leaks, the compressed gas is difficult to cause injury or damage to nearby workers or equipment.

Referring to fig. 1, the installation direction of the guide mechanism 104 should be the same as the ascending and descending direction of the ascending and descending mechanism 105, and when the ascending and descending mechanism 105 performs an active ascending and descending operation, the guide mechanism 104 can perform a passive ascending and descending operation in accordance with the ascending and descending mechanism 105. The guide mechanism 104 acts to limit the movement path of certain components to avoid danger and accidents. In the present embodiment, the guiding mechanism 104 is used for limiting the moving tracks of the movable connecting plate 102 and the movable mounting rail 103, if the lifting mechanism 105 performs lifting action in the vertical direction, then the movable connecting plate 102 and the movable mounting rail 103 should perform lifting action along the vertical direction along with the lifting mechanism 105, and the guiding mechanism 104 can prevent the movable connecting plate 102 and the movable mounting rail 103 from moving relative to the lifting mechanism 105 along the direction perpendicular to the vertical direction or other directions, so that unnecessary additional actions of the lifting mechanism 105 can be reduced, and the efficiency of the lifting mechanism 105 can be improved. The guide mechanism 104 can be configured in various structures in the prior art, and in the present embodiment, referring to fig. 1, the guide mechanism 104 includes a guide sleeve 114 and a guide rod 124; the guide sleeve 114 is arranged on the support frame 101, and the opening direction of the guide sleeve 114 is parallel to the vertical direction; the guide rod 124 is movably arranged in the guide sleeve 114, one end of the guide rod 124 is connected with the bottom of the movable connecting plate 102, the other end of the guide rod 124 movably penetrates through the support frame 101 and is connected with the movable mounting rail 103, and the moving direction of the guide rod 124 is the same as that of the movable connecting plate 102. The guide sleeve 114 and the guide rod 124 are simple and reliable in structure, and low in manufacturing cost; by inserting the guide rod 124 into the guide sleeve 114, the guide sleeve 114 can limit the moving direction of the guide rod 124, and finally can limit the moving track of the movable mounting rail 103 and the movable connecting plate 102. It should be understood that the guide mechanism 104 may be provided with a guide sleeve 114 and a guide rod 124, with one guide sleeve 114 and one guide rod 124 cooperating with the elevator mechanism 105 to form a movable plane; the guide mechanism 104 may be provided with a plurality of sleeves and a plurality of guide rods 124, and the plurality of guide sleeves 114 and the plurality of guide rods 124 may cooperate with the elevating mechanism 105 to form a three-dimensional moving frame.

Referring to fig. 1, the movable connection plate 102 serves to connect the guide mechanism 104 and the elevating mechanism 105 such that the guide mechanism 104 can be moved in a vertical direction by the movable connection plate 102 and the elevating mechanism 105 in common when the elevating mechanism 105 is moved in the vertical direction. The movable connecting plate 102 can be arranged in various structures in the prior art, and in this embodiment, referring to fig. 1, the movable connecting plate 102 includes a horizontal plate, a lifting mounting hole is arranged at the center of the horizontal plate, and at least two guiding mounting holes are arranged at the edge of the horizontal plate; the lifting mechanism 105 is detachably connected with a lifting mounting hole on the horizontal plate; the number of the guide mechanisms 104 is the same as the number of the guide mounting holes, and any one of the guide mechanisms 104 is fixedly or detachably connected with one of the guide mounting holes. A lifting mounting hole and a guiding mounting hole are formed in the horizontal plate, the structure is simple, the lifting mechanism 105 can be detachably connected through the lifting mounting hole conveniently, and the guiding mechanism 104 can be detachably connected through the guiding mounting hole conveniently.

Referring to fig. 1, the movable mounting rail 103 mainly functions to carry the intermediate body, the sealing mechanism 3 and the inflation component 4, and the movable mounting rail 103 can be sunk into the leakage detection tank 2 at the bottom end of the support frame 101; meanwhile, when the movable mounting rail 103 is located outside the leak detection pond 2, the intermediate body can be moved in or out to the inside of the movable mounting rail 103 along the horizontal direction perpendicular to the vertical direction. In the present embodiment, referring to fig. 1, the movable mounting rail 103 preferably includes a top plate 113, a bottom plate 133, and a plurality of support posts 123; any one of the supporting columns 123 is respectively arranged in the vertical direction, the top plate 113 and the bottom plate 133 are parallel to each other, and the top plate 113 and the bottom plate 133 form a frame shape through the plurality of supporting columns 123; the top plate 113 is connected with the other end of the guide mechanism 104; the seal mechanism 3 and the inflating member 4 are respectively provided on the bottom plate 133. The top plate 113 and the bottom plate 133 are parallel to each other, and the distance between the top plate 113 and the bottom plate 133 enables the intermediate body to move in or out of the movable mounting rail 103 in the horizontal direction; a plurality of support posts 123 are provided at the edge between the top plate 113 and the bottom plate 133 such that the top plate 113 is fixed relative to the bottom plate 133 by the support posts 123. The top of the top plate 113 should be connected to the aforementioned guide mechanism 104 so that when the lifting mechanism 105 moves in the vertical direction, the guide mechanism 104 and the movable mounting bar 103 move in the vertical direction simultaneously with the lifting mechanism 105. It should be noted that a plurality of support columns 123 are disposed between the top plate 113 and the bottom plate 133, and when the intermediate body moves in and out of the movable mounting column 103, the horizontal distance between two adjacent support columns 123 should be larger than the horizontal width of the intermediate body, so as to facilitate the movement of the intermediate body in and out of the movable mounting column 103.

Furthermore, in order to fix and position the intermediate body relative to the liftable platform 1, a fixing device for fixing the intermediate body can be arranged on the liftable platform 1; wherein, on the basis that the movable mounting rail 103 has the top plate 113, the bottom plate 133 and the plurality of supporting columns 123, the fixing device is arranged on the bottom plate 133, a space is left between the fixing device and the supporting columns 123, and the sealing mechanism 3 and the inflating component 4 are respectively arranged in the space between the fixing device and the supporting columns 123.

Wherein, the fixing device can adopt various structures in the prior art. In this embodiment, the fixing means is preferably provided by a spring means, a flexible contact member and a rigid support member; the flexible contact component is arranged on one surface of the rigid support component, and the other surface of the rigid support component is connected with the spring device; the number of the fixing devices is at least three, and in the horizontal direction, the three fixing devices can respectively approach and press the side part of the middle body along the edge of the movable mounting column 103 to the center direction of the movable mounting column 103; the flexible contact component can avoid damaging the surface of the intermediate body, and the rigid support component can apply the elastic force of the spring device to the intermediate body through the flexible component; the three fixing devices can at least form three-point support for the intermediate body, so that the effect of plane fixing is obtained in the horizontal direction of the intermediate body.

Further, referring to fig. 1, the leak detection tank 2 includes a tank bottom and a side wall extending upward from an edge of the tank bottom in a vertical direction; the bottom of the pool is provided with a discharge port which can be opened and closed.

The leakage detection medium filled in the leakage detection pool 2 should be oil or cutting fluid, and the oil or cutting fluid can protect the metal structure of the intermediate body, so that the metal structure of the intermediate body is difficult to oxidize. Cutting fluid or oil should be poured into the leak detection pool 2 from the pool mouth of the leak detection pool 2; when the cutting fluid or oil needs to be replaced, the leakage detection tank 2 can be discharged from a discharge port which is arranged at the bottom of the tank and can be opened and closed, so that the discharge of the cutting fluid or oil is convenient to realize. In addition, for the cleaning operation of the leak detection tank 2, the cleaning liquid for cleaning the leak detection tank 2 can also be discharged from the openable and closable discharge port, but the oil or the cutting fluid or the cleaning liquid should be collected by different collecting devices, respectively, to avoid the occurrence of contamination.

Further, the inflation part 4 comprises an inflation connector for conducting compressed gas; the joint structure is provided with at least one annular groove, and a sealing ring is arranged in one annular groove.

The sealing ring is used for sealing a gap between the outer wall of the inflation connector and the hole wall of the intermediate body where the through hole is located, and therefore compressed gas is prevented from leaking from the through hole of the intermediate body where the inflation connector is located.

It should be understood that the inflation connector is only a part of an inflation mechanism for inflating the intermediate body, and in actual use, one end (the end with the sealing ring) of the inflation connector can be detachably arranged on the through hole of the intermediate body, and the other end of the inflation connector is connected with a gas source through a gas pipe; the gas source is used for providing compressed gas, and the compressed gas is filled into the middle body through the gas pipe and the inflation structure.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The tightness detection device for the intermediate of the turbocharger is characterized by comprising a liftable platform, a leakage detection pool, a sealing mechanism and an inflation component;

the liftable platform is arranged in the vertical direction, is arranged above the leakage detection pool and extends into the leakage detection pool downwards along the vertical direction;

the sealing mechanism is movably arranged on the lifting platform; the sealing mechanism comprises a plurality of elbow clamps, and a sealing head is arranged on each elbow clamp; the elbow clamps are respectively arranged on the liftable platform, and any sealing head arranged on the elbow clamps can move towards the center of the platform along the edge of the platform;

the inflatable component is movably arranged on the liftable platform; the inflatable component can movably reciprocate along the direction from the edge of the platform to the center of the platform.

2. The tightness detection device for the intermediate body of a turbocharger according to claim 1, wherein the liftable platform comprises a support frame, a movable connection plate, a movable mounting rail, a guide mechanism and a lifting mechanism;

the support frame is arranged in the vertical direction and is arranged above the leakage detection pool;

the lifting mechanism is arranged at the top of the support frame and moves up and down along the vertical direction;

the movable connecting plate is arranged at the top end of the lifting mechanism, and the moving direction of the movable connecting plate is the same as that of the lifting mechanism;

one end of the guide mechanism is arranged at the bottom end of the movable mounting plate, the other end of the guide mechanism penetrates through the support frame in a downward movable manner along the vertical direction, and the moving direction of the guide mechanism is the same as that of the movable connecting plate;

the movable mounting fence is arranged at the lower part of the support frame, the other end of the guide mechanism is connected with the movable mounting fence, and the moving direction of the movable mounting fence is the same as that of the guide mechanism;

the sealing mechanism and the inflation component are respectively arranged in the movable mounting fence.

3. The tightness detection device for an intermediate body of a turbocharger according to claim 2, wherein said movable mounting fence comprises a top plate, a bottom plate, and a plurality of support columns;

any one of the supporting columns is arranged in the vertical direction, the top plate and the bottom plate are parallel to each other, and the top plate and the bottom plate form a frame shape through the plurality of supporting columns;

the top plate is connected with the other end of the guide mechanism;

the sealing mechanism and the inflation component are respectively arranged on the bottom plate.

4. The tightness detection device for an intermediate body of a turbocharger according to claim 2, wherein the guide mechanism includes a guide sleeve and a guide rod;

the guide sleeve is arranged on the support frame, and the opening direction of the guide sleeve is parallel to the vertical direction;

the mobilizable setting of guide bar is in the guide sleeve, wherein one end of guide bar with swing joint's bottom is connected, wherein the other end mobilizable of guide bar pierces through the support frame, and with the movable mounting fence is connected, the moving direction of guide bar with swing joint's moving direction is the same.

5. The tightness detection device for an intermediate body of a turbocharger according to claim 2, wherein the lift mechanism includes a lift cylinder and a lift lever; the lifting cylinder is arranged on the support frame, and the lifting rod is movably connected with the lifting cylinder; one end of the lifting rod is connected with the bottom of the movable connecting plate, and the other end of the lifting rod can move in the lifting cylinder; the moving direction of the lifting rod is parallel to the vertical direction.

6. The tightness detection device for an intermediate body of a turbocharger according to claim 2, wherein the movable connection plate comprises a horizontal plate, a lifting installation hole is provided at the center of the horizontal plate, and at least two guide installation holes are provided at the edge of the horizontal plate;

the lifting mechanism is detachably connected with the lifting mounting hole on the horizontal plate;

the number of the guide mechanisms is the same as that of the guide mounting holes, and any one of the guide mechanisms is fixedly or detachably connected with one of the guide mounting holes.

7. The tightness detection device for an intermediate body of a turbocharger according to claim 2, wherein the support frame includes a bearing plate and a plurality of bearing pillars;

the plurality of bearing support columns are respectively parallel to the vertical direction, and the top ends of the plurality of bearing support columns are respectively connected with the bottom edge of the bearing plate;

the bearing plate is arranged above the leakage detection pool through a plurality of bearing support columns.

8. The tightness detection device for an intermediate body of a turbocharger according to claim 3, wherein the liftable platform further comprises a fixing device for fixing the intermediate body, the fixing device is disposed on the base plate, a space is left between the fixing device and the support column, and the sealing mechanism and the inflating member are respectively disposed in the space between the fixing device and the support column.

9. The tightness detection device for an intermediate body of a turbocharger according to claim 1, wherein the leak detection cell includes a cell bottom and a side wall extending upward in the vertical direction from an edge of the cell bottom;

the bottom of the pool is provided with a discharge port which can be opened and closed.

10. The tightness detection device of an intermediate body for a turbocharger according to claim 1, wherein said gas charging means includes a gas charging connector for conducting compressed gas; at least one annular groove is formed in the inflation connector, and a sealing ring is arranged in one annular groove.