CN209945627U

CN209945627U - Water pump shell gas tightness detection device

Info

Publication number: CN209945627U
Application number: CN201920726747.3U
Authority: CN
Inventors: 陈自飞
Original assignee: Suzhou Mattely Automotive Parts Co Ltd
Current assignee: Suzhou Mattely Automotive Parts Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-01-14
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a water pump shell gas tightness detection device, locate the water pump between gas measurement subassembly and the location rotating assembly including gas measurement subassembly, the location rotating assembly who locates gas measurement subassembly top and centre gripping, gas measurement subassembly includes the base, locates the cell body on the base and locate on the base and dodge the sealed cushion of cell body, the circumference position that sealed cushion is located the cell body is equipped with the arc portion that protrudes in to the cell body, the outside of base is equipped with the admission joint, the admission joint communicates to the cell body through the admission line, location rotating assembly is including rotatory ground driver plate, the bottom of driver plate is equipped with a plurality of jack catchs, and the belt pulley top of water pump is equipped with a plurality of claw holes that match corresponding with the jack catchs, and the casing bottom and the laminating of sealed cushion of water pump, the impeller of water pump is arranged in the cell body along the embedding of arc. The utility model provides high water pump shell gas tightness detection accuracy.

Description

Water pump shell gas tightness detection device

Technical Field

The utility model belongs to the technical field of the water pump is made, especially, relate to a water pump shell gas tightness detection device.

Background

The engine water pump is installed in the engine delivery port, and conventional water pump structure includes spare parts such as water pump shell, belt pulley, axle connection bearing, impeller and water seal and constitutes, and the water pump passes through the belt pulley and drives axle connection bearing and impeller rotation, and the coolant liquid in the water pump is driven by the impeller and is rotated together, is got rid of the edge to the water pump shell under the effect of centrifugal force, produces certain pressure simultaneously, then flows and then reaches the cooling and heat dissipation's effect from water outlet channel or water pipe. The water seal movable ring and the bearing are arranged between the impeller and the bearing in an interference fit mode, the water seal static ring is arranged on a shell of the water pump, so that cooling liquid is prevented from entering an inner cavity of the bearing, the lubrication of the bearing is damaged, parts are corroded, therefore, the water pump needs to be subjected to air tightness detection after the water pump is assembled, the problem that the water pump leaks during operation is solved, and normal operation of an engine is affected.

Traditional gas tightness detects through manually operation, and operating personnel places the test water pump on detecting the bench, through mounting hole on the water pump with detect the bench location round pin location, use the depression bar to push down, ventilate and carry out the gas tightness and detect detecting platform bottom detecting.

Because the connection mode that the mounting hole is matched with the positioning pin is adopted in the detection process, the time required by positioning is longer, the air tightness detection cycle time is prolonged, and the labor is wasted; the water pump shell is attached to the surface of the detection table, and due to the dimensional tolerance of the water pump shell, a gap exists between the water pump shell and the detection table, and the test result has deviation; the depression bar pushes down to the clamping ring position, and the clamping ring laminating water pump shell's belt pulley carries out rotatory operation, and rotatory operation's detection mode, clamping ring have the wearing and tearing problem, and the cost improves.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a water pump shell gas tightness detection device to realize improving water pump shell gas tightness degree of accuracy. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

water pump shell gas tightness detection device, locate the location rotating assembly and the centre gripping of surveying the gas subassembly top and locate the water pump between gas subassembly and the location rotating assembly including surveying the gas subassembly, surveying the gas subassembly and including the base, locate the cell body on the base and locate on the base and dodge the sealed cushion of cell body, the circumference position that sealed cushion is located the cell body is equipped with the arc portion of inside protrusion of cell body, the outside of base is equipped with air inlet joint, air inlet joint communicates to the cell body through admission line, location rotating assembly is including rotatory driver plate, the bottom of driver plate is equipped with a plurality of jack catchs, and the belt pulley top of water pump is equipped with a plurality of claw holes that match corresponding with the jack catch, and the casing bottom and the sealed cushion laminating of water pump, the impeller of water pump is arranged in the cell body along the embedding of arc portion.

Specifically, the drive plate is connected with a drive device for driving the drive plate to rotate.

Specifically, the water pump includes the casing, locate belt pulley and the impeller at casing both ends, run through the bearing that casing connects belt pulley and impeller to locate between impeller and the bearing and the water seal of sealed casing tip.

Specifically, the location rotating assembly is including locating the pressure disk at driver plate top, locating the reference column of pressure disk bottom, locating the connection pad at pressure disk top and locating the press cylinder at connection pad top, the periphery of casing is equipped with a plurality of installation portions that match with the reference column is corresponding.

Specifically, the top end of the driving device is connected to the central position of the pressure plate.

Specifically, a plurality of support columns are arranged between the connecting disc and the pressing disc.

Compared with the prior art, the utility model discloses water pump shell gas tightness detection device's beneficial effect mainly embodies:

the casing is placed on the sealing rubber pad, so that the casing and the surface of the sealing rubber pad are completely attached and matched, and the impeller accurately slides into the groove body due to the arc-shaped structure in the sealing rubber pad, thereby avoiding the problems of poor attachment and air leakage caused by the rigid structure of the circumferential corners of the groove body and improving the air tightness; the claw of the drive plate is matched with the claw hole in the belt pulley, and the claw drives the belt pulley to rotate, so that the problem of abrasion of the pressing piece caused by the traditional mode of pressing and holding the belt pulley is solved; overall structure effectively improves gas tightness detection efficiency, guarantees the gas tightness and detects the accuracy.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a schematic structural view of the water pump of the present embodiment;

the figures in the drawings represent:

the device comprises a base 1, a groove 11, a sealing rubber gasket 12, an arc part 13, an air inlet joint 14, an air inlet pipeline 15, a pressure plate 2, a positioning column 21, a dial 22, a motor 23, a jaw 24, a connecting disc 25, a supporting column 26, a shell 3, a belt pulley 31, an impeller 32, a bearing 33, a water seal 34, a jaw hole 35 and an installation part 36.

Detailed Description

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

Example (b):

referring to fig. 1-3, the present embodiment is a water pump housing airtightness detection apparatus, which includes an air measurement component, a positioning rotation component disposed above the air measurement component, and a water pump sandwiched between the air measurement component and the positioning rotation component.

The air measuring assembly comprises a base 1, a groove body 11 arranged on the base 1 and a sealing rubber mat 12 arranged on the base 1 and avoiding the groove body 11. The sealing rubber gasket 12 is provided with an arc-shaped part 13 protruding inwards the groove body 11 at the circumferential position of the groove body 11. An air inlet joint 14 is arranged outside the base 1, and the air inlet joint 14 is communicated to the inside of the tank body 11 through an air inlet pipeline 15. The outside of the intake connector 14 is charged with compressed air to check the pump airtightness.

The positioning and rotating assembly comprises a pressure plate 2, a positioning column 21 arranged at the bottom of the pressure plate 2 and a rotary dial 22. The dial 22 is connected to a driving device for driving the dial to rotate, and the driving device of the present embodiment is a motor 23. The top end of the driving device is connected to the center position of the platen 2, and the bottom end of the driving device is connected to the dial 22. The bottom of the dial 22 is provided with a number of claws 24. The positioning and rotating assembly further comprises a connecting disc 25 arranged on the top of the pressure plate 2 and a press cylinder (not shown in the figure) arranged on the top of the connecting disc 25. A plurality of supporting columns 26 are arranged between the connecting disc 25 and the pressure plate 2.

The water pump includes a housing 3, a pulley 31 and an impeller 32 provided at both ends of the housing 3, a bearing 33 penetrating the housing 3 to connect the pulley 31 and the impeller 32, and a water seal 34 provided between the impeller 32 and the bearing 33 and sealing an end of the housing 3. The top of the belt pulley 31 is provided with a plurality of claw holes 35 which are correspondingly matched with the claws 24. The periphery of the housing 3 is provided with a plurality of mounting portions 36 corresponding to the positioning posts 21. The bottom of the shell 3 is attached to the sealing rubber mat 12, and the impeller 32 is embedded in the groove body 11 along the arc-shaped part 13.

When the water pump sealing device is applied to the embodiment, the shell 3 of the water pump is arranged at the top of the sealing rubber mat 12, the impeller 32 is embedded into the tank body 11, the connecting disc 25 drives the pressure plate 2 to press down, the positioning column 21 is positioned at the position of the mounting part 36 of the shell 3, the clamping jaw 24 is positioned in the clamping jaw hole 35 of the belt pulley 31, the motor 23 rotates to drive the driving plate 22, the driving plate 22 drives the belt pulley 31 to rotate, the belt pulley 31 and the impeller 32 rotate together to simulate the working state of the water pump, the air inlet joint 14 inflates the tank body 11, and the sealing performance.

In the embodiment, the casing 3 is arranged on the sealing rubber mat 12, so that the casing 3 is completely attached and matched with the surface of the sealing rubber mat 12, and the impeller 32 accurately slides into the groove body 11 due to the structure of the arc-shaped part 13 in the sealing rubber mat 12, thereby avoiding the problems of poor attachment and air leakage caused by the rigid structure of the circumferential corner of the groove body 11 and improving the air tightness; the claw 24 of the drive plate 22 is matched with the claw hole 35 in the belt pulley 31, and the claw 24 drives the belt pulley 31 to rotate, so that the problem of abrasion of a pressing piece caused by the traditional mode of pressing and holding the belt pulley 31 is solved; overall structure effectively improves gas tightness detection efficiency, guarantees the gas tightness and detects the accuracy.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Water pump shell body gas tightness detection device, its characterized in that: the gas measuring assembly comprises a base, a groove body arranged on the base and a sealing rubber pad arranged on the base and avoiding the groove body, wherein the sealing rubber pad is located at the circumferential position of the groove body and provided with an arc-shaped portion protruding into the groove body, an air inlet connector is arranged outside the base and communicated into the groove body through an air inlet pipeline, the positioning rotating assembly comprises a rotating driver plate, a plurality of clamping jaws are arranged at the bottom of the driver plate, a plurality of claw holes matched with the clamping jaws correspondingly are formed in the top of a belt pulley of the water pump, the bottom of a shell of the water pump is attached to the sealing rubber pad, and an impeller of the water pump is embedded into the groove body along the arc-shaped portion.

2. The water pump housing airtightness detection apparatus according to claim 1, wherein: the drive plate is connected with a drive device for driving the drive plate to rotate.

3. The water pump housing airtightness detection apparatus according to claim 2, wherein: the water pump comprises a shell, a belt pulley and an impeller which are arranged at two ends of the shell, a bearing which penetrates through the shell and is used for connecting the belt pulley and the impeller, and a water seal which is arranged between the impeller and the bearing and seals the end part of the shell.

4. The water pump housing airtightness detection apparatus according to claim 3, wherein: the locating and rotating assembly comprises a pressure plate arranged at the top of the drive plate, a locating column arranged at the bottom of the pressure plate, a connecting disc arranged at the top of the pressure plate and a press cylinder arranged at the top of the connecting disc, and a plurality of installing parts matched with the locating column correspondingly are arranged on the periphery of the shell.

5. The water pump housing airtightness detection apparatus according to claim 4, wherein: the top end of the driving device is connected to the central position of the pressure plate.

6. The water pump housing airtightness detection apparatus according to claim 4, wherein: and a plurality of supporting columns are arranged between the connecting disc and the pressure plate.