CN214200503U

CN214200503U - Helium leakage detection equipment

Info

Publication number: CN214200503U
Application number: CN202120475024.8U
Authority: CN
Inventors: 沈豪; 靳龙飞
Original assignee: Inoteco Testing Equipment Taicang Co ltd
Current assignee: Inoteco Testing Equipment Taicang Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-09-14
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a helium leakage detection equipment, comprises a workbench, workstation top outer wall is inserted and is equipped with the base, base top outer wall has the vacuum cavity through the bolt fastening, vacuum cavity bottom inner wall has the baffle that three equidistance is circular distribution, and is three baffle one side outer wall all is fixed with the mounting bracket, and per two are adjacent all be provided with determine module between the baffle, determine module includes the cylinder through the vertical setting of bolt fastening at vacuum cavity bottom inner wall, cylinder top outer wall has the shutoff board through the bolt fastening, and shutoff board and two adjacent baffle relative lateral walls constitute sliding connection. The utility model discloses a sealed bolt, sealed lid and the sealing mechanism who sets up can make sealing mechanism work through opposite rotation sealed bolt and sealed lid, realizes waiting to detect part and detection device's high-speed joint to guarantee the leakproofness, improved detection efficiency.

Description

Helium leakage detection equipment

Technical Field

The utility model relates to a leak testing technical field especially relates to a helium leak testing equipment.

Background

In order to reduce fuel consumption, high pressure fuel injection technology is increasingly being used. The injection pressure is greatly improved in the last years, the injection pressure can reach as high as 2000bar (about 150000psi), fuel leakage not only can increase fuel consumption, but also can cause fire in an engine room, the high-pressure oil pipe needs to be subjected to leakage test before being put into use, and the helium has the advantages of stable property, easiness in finding and the like, is a good medium for detecting leakage, and needs to be detected by helium leakage detection equipment for detecting the high-pressure oil pipe.

The existing helium leakage detection equipment has a plurality of defects: for example, pipeline work of pipeline detection cannot be realized, detection efficiency is reduced, detection personnel is required to perform complicated detection steps, detection errors are increased easily, in addition, fixed pressure detection which cannot realize continuity is also available, pressure is often insufficient along with consumption of detection media, detection results and actual conditions have errors, and finally, quick sealing connection of detection parts and detection devices cannot be realized quickly, so that work efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a helium leakage detection device.

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

the helium leakage detection device comprises a workbench, wherein a base is inserted into the outer wall of the top of the workbench, a vacuum cavity is fixed on the outer wall of the top of the base through bolts, three partition plates which are distributed in a circular manner at equal intervals are fixed on the inner wall of the bottom of the vacuum cavity through bolts, a mounting frame is fixed on the outer wall of one side of each partition plate, a detection assembly is arranged between every two adjacent partition plates, the detection assembly comprises a cylinder which is vertically arranged on the inner wall of the bottom of the vacuum cavity through bolts, a plugging plate is fixed on the outer wall of the top of the cylinder through bolts, the plugging plate and two adjacent opposite side walls of the partition plates form sliding connection, a plurality of plugging blocks are linearly fixed on the outer wall of the top of the plugging plate through bolts, racks are fixed on the outer wall of the separated side of the plugging plate through bolts, rectangular grooves are formed at the positions of the partition plates close to the racks, and the racks and the rectangular grooves form sliding connection, the inner wall of one side of the rectangular groove rotates to be connected with a gear, and the gear and the rack are mutually meshed, the outer wall of one side of the gear is fixedly provided with a first bevel gear through bolts, the inner wall of one side of the rectangular groove rotates to be connected with a second bevel gear, the first bevel gear and the second bevel gear are mutually meshed, the outer wall of the top of the second bevel gear is fixedly provided with a triangular prism through bolts, the outer wall of the top of the triangular prism is sleeved with a screw rod, the screw rod is adjacent to the outer wall of the top of the screw rod, and the outer wall of the top of the screw rod rotates to be connected with the same cavity cover, and an air guide assembly is arranged inside the base.

Preferably, the air guide subassembly includes the vacuum pump through the bolt fastening at base bottom inner wall, the vacuum pump extraction opening has the solenoid valve through the bolt fastening, two air inlets of solenoid valve have first vacuum tube and second vacuum tube through the bolt fastening respectively, and first vacuum tube passes base top outer wall and vacuum cavity one side outer wall, and the second vacuum tube passes base top outer wall and vacuum cavity and is linked together, base bottom inner wall has the gas bomb through the bolt fastening, base top inner wall has the booster through the bolt fastening, the booster air feed inlet has the intake pipe through the bolt fastening, and the intake pipe passes base top outer wall and vacuum cavity one side outer wall, the base one end is kept away from to intake pipe and first vacuum tube all the cover is equipped with sealed lid, sealed lid spiro union has sealing mechanism.

Preferably, the workbench is of a triangular structure, a motor is fixed on the inner wall of the bottom of the workbench through a bolt, and an output shaft of the motor and the outer wall of the bottom of the base are fixed through a bolt.

Preferably, the motor, the supercharger, the cylinder, the electromagnetic valve and the vacuum pump are all connected with switches, and the switches are all connected with power lines.

Preferably, the sealing mechanism comprises two half-cone plates connected to the inner wall of one side of the sealing cover in a sliding manner, the outer wall of one side of the sealing cover is connected with a sealing bolt in a threaded manner, and the first vacuum tube penetrates through the sealing bolt.

Preferably, the sealing mechanism comprises a steel belt fixed on the arc-shaped inner wall of the sealing cover through a bolt, one end, far away from the sealing cover, of the steel belt is fixed with the arc-shaped outer wall of the first vacuum pipe through the bolt, the outer wall of one side of the sealing cover is connected with a sealing bolt in a threaded mode, and the first vacuum pipe penetrates through the sealing bolt.

The utility model has the advantages that:

1. this helium leak testing equipment through triangle-shaped workstation, motor and the base that sets up, can realize three station independent operation, carries out the work of material loading, detection and unloading in proper order for the staff of detection work is distinct, and the operating procedure in single testing phase is simplified, reduces personnel's fault operation and increases detection efficiency.

2. This helium leakage detection equipment through booster, intake pipe and the gas bomb that sets up, can realize providing the gas of certain pressure all the time by the booster in the testing process, can not lead to the detection error that pressure reduction and lead to along with the process that detects, has guaranteed the accuracy of testing result.

3. This helium leakage detection equipment through the sealed bolt that sets up, sealed lid and sealing mechanism, can make sealing mechanism work through opposite rotation sealed bolt and sealed lid, realizes waiting to detect part and detection device's high-speed joint to guarantee the leakproofness, improved detection efficiency.

Drawings

Fig. 1 is a schematic perspective view of an embodiment 1 of a helium leakage detecting apparatus according to the present invention;

fig. 2 is a schematic cross-sectional structural view of an embodiment 1 of the helium leakage detecting apparatus provided by the present invention;

fig. 3 is a schematic sectional view of a partition plate of an embodiment 1 of the helium leakage detecting apparatus of the present invention;

fig. 4 is a schematic structural view of a sealing mechanism of embodiment 1 of the helium leakage detecting apparatus provided by the present invention.

Fig. 5 is a schematic structural view of a sealing mechanism of embodiment 2 of the helium leakage detecting apparatus according to the present invention.

In the figure: the device comprises a workbench 1, a vacuum cavity 2, a cavity cover 3, a base 4, an air inlet pipe 5, a first vacuum pipe 6, a lead screw 7, a triangular prism 8, a gear 9, a rack 10, a supercharger 11, a gas storage bottle 12, a blocking block 13, a cylinder 14, a sealing cover 15, a second vacuum pipe 16, an electromagnetic valve 17, a vacuum pump 18, a sealing bolt 19, a semi-conical plate 20 and a steel belt 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-4, a helium leakage detection device comprises a workbench 1, a base 4 is inserted into the outer wall of the top of the workbench 1, the workbench 1 is of a triangular structure, a motor is fixed on the inner wall of the bottom of the workbench 1 through a bolt, a motor output shaft and the outer wall of the bottom of the base 4 are fixed through a bolt, a vacuum chamber 2 is fixed on the outer wall of the top of the base 4 through a bolt, three partition plates which are equidistantly and circularly distributed are fixed on the inner wall of the bottom of the vacuum chamber 2 through a bolt, a mounting frame is fixed on the outer wall of one side of each partition plate, a detection assembly is arranged between every two adjacent partition plates, the detection assembly comprises a cylinder 14 which is vertically arranged on the inner wall of the bottom of the vacuum chamber 2 through a bolt, a plugging plate is fixed on the outer wall of the top of the cylinder 14 through a bolt, the plugging plate and the two adjacent opposite side walls form a sliding connection, a plurality of plugging blocks 13 are linearly fixed on the outer wall of the top of the plugging plate through bolts, the outer walls of the separated sides of the plugging plates are all fixed with racks 10 through bolts, rectangular grooves are formed in the positions, close to the racks 10, of the partition plates, the racks 10 are in sliding connection with the rectangular grooves, the inner wall of one side of each rectangular groove is rotatably connected with a gear 9, the gear 9 is meshed with the racks 10, the outer wall of one side of the gear 9 is fixedly provided with a first bevel gear through bolts, the inner wall of one side of each rectangular groove is rotatably connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, the outer wall of the top of the second bevel gear is fixedly provided with a triangular prism 8 through bolts, the outer wall of the top of the triangular prism 8 is sleeved with a screw rod 7, the outer walls of the tops of two adjacent screw rods 7 are rotatably connected with the same cavity cover 3, an air guide assembly is arranged inside the base 4 and comprises a vacuum pump 18 which is fixedly arranged on the inner wall of the bottom of the base 4 through bolts, and an air exhaust port of the vacuum pump 18 is fixedly provided with an electromagnetic valve 17 through bolts, two air inlets of solenoid valve 17 are respectively equipped with first vacuum tube 6 and second vacuum tube 16 through bolt fastening, and first vacuum tube 6 passes 4 top outer walls of base and 2 side outer walls of vacuum cavity, and second vacuum tube 16 passes 4 top outer walls of base and vacuum cavity 2 and is linked together, and 4 bottom inner walls of base have gas bomb 12 through bolt fastening, and 4 top inner walls of base have booster 11 through bolt fastening, and 11 models of booster are: CA05D, supercharger 11 air feed port has intake pipe 5 through the bolt fastening, and intake pipe 5 passes base 4 top outer wall and vacuum cavity 2 one side outer wall, intake pipe 5 and first vacuum tube 6 keep away from base 4 one end and all overlap and are equipped with sealed lid 15, sealed lid 15 spiro union has sealing mechanism, sealing mechanism includes two half cone plates 20 of sliding connection at sealed lid 15 one side inner wall, sealed lid 15 one side outer wall spiro union has sealed bolt 19, and first vacuum tube 6 passes sealed bolt 19, including a motor, supercharger 11, cylinder 14, solenoid valve 17 and vacuum pump 18 all connect the switch, the switch all connects the power cord.

The working principle is as follows: when the device is used, a feeding station on the workbench 1 is connected with a power supply of the air cylinder 14, the air cylinder 14 drives the blocking plate to descend, the rack 10 is driven to move downwards, the gear 9 rotates in the downward moving process of the rack 10, the gear 9 drives the triangular prism 8 to rotate through the first bevel gear and the second bevel gear, the screw rod 7 is driven to rotate, the cavity cover 3 is lifted, a component to be detected is placed on the mounting frame to be fixed, the air inlet pipe 5 and the first vacuum pipe 6 are sleeved at an oil inlet and a pressure detection port of the detection component, the sealing cover 15 and the sealing bolt 19 are rotated in opposite directions, the sealing bolt 19 moves towards the inside of the sealing cover 15, the sealing bolt 19 can extrude the semi-conical plate 20 due to the gradient existing on the outer surface of the semi-conical plate 20 in the moving process, the sealing effect on the extrusion of the air inlet pipe 5 and the first vacuum pipe 6 is achieved, and only the sealing cover 15 and the sealing bolt 19 need to be screwed to simplify the connecting step, the efficiency is improved, then the cylinder 14 controls the plugging plate to ascend, the cavity cover 3 is driven to descend by the rack 10, the gear 9, the first bevel gear, the second bevel gear, the triangular prism and the screw rod in the ascending process of the plugging plate, the sealing of the vacuum cavity 2 is realized, the oil outlet valve is plugged by the plugging block 13 on the plugging plate to wait for a leakage test, the power supply of the motor is switched on, the motor drives the base 4 and the vacuum cavity 2 to rotate by 120 degrees, the loaded vacuum cavity 2 is transferred to a detection station, the power supply of the vacuum pump 18 of a detector is controlled to respectively pump out air in the vacuum cavity 2 and the detection part by controlling the electromagnetic valve 17, finally the power supply of the supercharger 11 is switched on, helium in the gas storage bottle 12 is pumped into the part to be detected at a certain pressure, the tightness of the part is measured and calculated by the gas component in the vacuum cavity 2 after the gas inlet is finished, and the vacuum cavity 2 is controlled to rotate to a blanking station by the motor, and (4) the blanking personnel open the cavity cover 3 by controlling the air cylinder 14 and take out the parts.

Example 2

Referring to fig. 1-3 and 5, a helium leakage detection device comprises a workbench 1, a base 4 is inserted into the outer wall of the top of the workbench 1, the workbench 1 is of a triangular structure, a motor is fixed on the inner wall of the bottom of the workbench 1 through a bolt, an output shaft of the motor and the outer wall of the bottom of the base 4 are fixed through a bolt, a vacuum chamber 2 is fixed on the outer wall of the top of the base 4 through a bolt, three baffles which are equidistantly and circularly distributed are fixed on the inner wall of the bottom of the vacuum chamber 2 through a bolt, a mounting frame is fixed on the outer wall of one side of each of the three baffles, a detection assembly is arranged between every two adjacent baffles and comprises a cylinder 14 which is vertically arranged on the inner wall of the bottom of the vacuum chamber 2 through a bolt, a plugging plate is fixed on the outer wall of the top of the cylinder 14 through a bolt, the plugging plate and two adjacent opposite side walls of the two baffles form a sliding connection, a plurality of plugging blocks 13 are linearly fixed on the outer wall of the top of the plugging plate through bolts, the outer walls of the separated sides of the plugging plates are all fixed with racks 10 through bolts, rectangular grooves are formed in the positions, close to the racks 10, of the partition plates, the racks 10 are in sliding connection with the rectangular grooves, the inner wall of one side of each rectangular groove is rotatably connected with a gear 9, the gear 9 is meshed with the racks 10, the outer wall of one side of the gear 9 is fixedly provided with a first bevel gear through bolts, the inner wall of one side of each rectangular groove is rotatably connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, the outer wall of the top of the second bevel gear is fixedly provided with a triangular prism 8 through bolts, the outer wall of the top of the triangular prism 8 is sleeved with a screw rod 7, the outer walls of the tops of two adjacent screw rods 7 are rotatably connected with the same cavity cover 3, an air guide assembly is arranged inside the base 4 and comprises a vacuum pump 18 which is fixedly arranged on the inner wall of the bottom of the base 4 through bolts, and an air exhaust port of the vacuum pump 18 is fixedly provided with an electromagnetic valve 17 through bolts, two air inlets of solenoid valve 17 are respectively equipped with first vacuum tube 6 and second vacuum tube 16 through bolt fastening, and first vacuum tube 6 passes 4 top outer walls of base and 2 side outer walls of vacuum cavity, and second vacuum tube 16 passes 4 top outer walls of base and vacuum cavity 2 and is linked together, and 4 bottom inner walls of base have gas bomb 12 through bolt fastening, and 4 top inner walls of base have booster 11 through bolt fastening, and 11 models of booster are: CA05D, supercharger 11 air supply port has intake pipe 5 through the bolt fastening, and intake pipe 5 passes base 4 top outer wall and vacuum cavity 2 one side outer wall, intake pipe 5 and first vacuum tube 6 keep away from base 4 one end all overlap and are equipped with sealed lid 15, sealed lid 15 spiro union has sealing mechanism, sealing mechanism includes the steel band 21 of fixing at sealed lid 15 arc inner wall through the bolt fastening, steel band 21 keeps away from sealed lid 15 one end and first vacuum tube 6 arc outer wall and passes through the bolt fastening, sealed lid 15 one side outer wall spiro union has sealed bolt 19, and first vacuum tube 6 passes sealed bolt 19, including a motor, supercharger 11, cylinder 14, solenoid valve 17 and vacuum pump 18 all connect the switch, the switch all connects the power cord.

The working principle is as follows: when the device is used, a feeding station on the workbench 1 is connected with a power supply of the air cylinder 14, the air cylinder 14 drives the rack 10 to move downwards in the descending process of the plugging plate, the gear 9 rotates in the descending process of the rack 10, the gear 9 drives the triangular prism 8 to rotate through the first bevel gear and the second bevel gear, and further drives the screw rod 7 to rotate, so that the cavity cover 3 is lifted, a component to be detected is placed on the mounting frame to be fixed, the air inlet pipe 5 and the first vacuum pipe 6 are sleeved at an oil inlet and a pressure detection port of the detection component, the sealing cover 15 and the sealing bolt 19 are rotated in opposite directions, so that the sealing bolt 19 moves towards the inside of the sealing cover 15, the sealing bolt 19 drives the steel belt 21 to move in the moving process, along with the movement of the steel belt 21, the air inlet pipe 5 and the first vacuum pipe 6 are tightly bound on the surface of the component, and further realize that the air inlet pipe 5 and the first vacuum pipe 6 are extruded to achieve a sealing effect, and only need to twist the sealed cap 15 and the sealing bolt 19 to simplify the connection procedure, improve efficiency, then control the plugging plate to rise through the air cylinder 14, the plugging plate rises in the course of rising, drive the cavity cover 3 to descend through the rack 10, the gear 9, the first bevel gear, the second bevel gear, the triangular prism and the lead screw, realize the sealing of the vacuum cavity 2, the plugging block 13 on the plugging plate plugs the oil outlet valve, wait for carrying on the leak test, switch on the power of the motor, the motor drives the base 4 and the vacuum cavity 2 to rotate 120 degrees, turn the loaded vacuum cavity 2 to the detection station, the power of the inspector vacuum pump 18, pump out the air in the vacuum cavity 2 and the detection part respectively through controlling the electromagnetic valve 17, finally switch on the power of the booster 11, pump the helium in the gas storage bottle 12 into the part to be detected at a certain pressure, measure and calculate the sealing performance of the part through the gas composition in the vacuum cavity 2 after finishing air intake, and controlling the vacuum cavity 2 to rotate to a blanking station by a motor, and opening the cavity cover 3 by a blanking person through a control cylinder 14 to take out the part.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The helium leakage detection equipment comprises a workbench (1) and is characterized in that a base (4) is inserted into the outer wall of the top of the workbench (1), a vacuum cavity (2) is fixed to the outer wall of the top of the base (4) through bolts, three partition plates which are distributed in a circular shape at equal intervals are fixed to the inner wall of the bottom of the vacuum cavity (2) through bolts, a mounting frame is fixed to the outer wall of one side of each partition plate, a detection assembly is arranged between every two adjacent partition plates and comprises a cylinder (14) which is vertically arranged on the inner wall of the bottom of the vacuum cavity (2) through bolts, a plugging plate is fixed to the outer wall of the top of the cylinder (14) through bolts, the plugging plate and two adjacent opposite side walls of the partition plates form sliding connection, a plurality of plugging blocks (13) are fixed to the outer wall of the top of the plugging plate in a linear mode through bolts, and racks (10) are fixed to the outer wall of the side of the plugging plate through bolts, the baffle is close to rack (10) department and has seted up the rectangular channel, and rack (10) and rectangular channel constitute sliding connection, rectangular channel one side inner wall rotates and is connected with gear (9), and gear (9) and rack (10) intermeshing, gear (9) one side outer wall has first conical gear through the bolt fastening, rectangular channel one side inner wall rotates and is connected with second conical gear, and first conical gear and second conical gear intermeshing, second conical gear top outer wall has triangular prism (8) through the bolt fastening, triangular prism (8) top outer wall cover is equipped with lead screw (7), and is two adjacent lead screw (7) top outer wall rotates and is connected with same chamber lid (3), base (4) inside is provided with the air guide subassembly.

2. The helium leakage detection device according to claim 1, wherein the gas guide assembly comprises a vacuum pump (18) fixed on the inner wall of the bottom of the base (4) through a bolt, an air suction port of the vacuum pump (18) is fixed with a solenoid valve (17) through a bolt, two air inlets of the solenoid valve (17) are respectively fixed with a first vacuum tube (6) and a second vacuum tube (16) through a bolt, the first vacuum tube (6) penetrates through the outer wall of the top of the base (4) and the outer wall of one side of the vacuum cavity (2), the second vacuum tube (16) penetrates through the outer wall of the top of the base (4) and is communicated with the vacuum cavity (2), the inner wall of the bottom of the base (4) is fixed with a gas storage bottle (12) through a bolt, the inner wall of the top of the base (4) is fixed with a supercharger (11) through a bolt, and an air inlet pipe (5) is fixed on an air inlet port of the supercharger (11) through a bolt, and the air inlet pipe (5) penetrates through the outer wall of the top of the base (4) and the outer wall of one side of the vacuum cavity (2), one ends, far away from the base (4), of the air inlet pipe (5) and the first vacuum pipe (6) are respectively sleeved with a sealing cover (15), and the sealing covers (15) are connected with sealing mechanisms in a threaded mode.

3. The helium leakage detection device according to claim 1, wherein the workbench (1) is of a triangular structure, a motor is fixed on the inner wall of the bottom of the workbench (1) through a bolt, and an output shaft of the motor and the outer wall of the bottom of the base (4) are fixed through a bolt.

4. The helium leakage detection apparatus as claimed in claim 3, wherein said motor, supercharger (11), cylinder (14), solenoid valve (17) and vacuum pump (18) are all connected with a switch, and the switch is all connected with a power line.

5. The helium leakage detecting apparatus as claimed in claim 2, wherein said sealing mechanism comprises two half-cone plates (20) slidably connected to an inner wall of one side of the sealing cover (15), a sealing plug (19) is screwed to an outer wall of one side of the sealing cover (15), and the first vacuum tube (6) passes through the sealing plug (19).

6. The helium leakage detecting apparatus as claimed in claim 2, wherein the sealing mechanism comprises a steel strip (21) fixed to the arc-shaped inner wall of the sealing cover (15) by bolts, one end of the steel strip (21) away from the sealing cover (15) and the arc-shaped outer wall of the first vacuum tube (6) are fixed by bolts, a sealing bolt (19) is screwed to the outer wall of one side of the sealing cover (15), and the first vacuum tube (6) passes through the sealing bolt (19).