CN116086707B

CN116086707B - Detection platform for detecting axle air tightness

Info

Publication number: CN116086707B
Application number: CN202310380033.2A
Authority: CN
Inventors: 王正恒
Original assignee: Xihe Intelligent Equipment Shandong Co ltd
Current assignee: Xihe Intelligent Equipment Shandong Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-07-28
Anticipated expiration: 2043-04-11
Also published as: CN116086707A

Abstract

The invention belongs to the technical field of axle production detection equipment, and provides an axle air tightness detection platform which comprises a machine body, an air charging device and a pressing device, wherein the machine body is of a U-shaped structure, a left box body and a right box body are respectively arranged at two ends of the machine body, an infrared detection device is arranged in the right box body and comprises a base, a package detection assembly and a driving assembly, the package detection assembly comprises a winding strip, an infrared sensor and a display screen, a telescopic device is arranged in the left box body, the pressing device comprises a pressing cylinder and a hollow cylinder, the hollow cylinder movably penetrates through the spacer and the machine body, a sealing plate for sealing the end part of the axle is arranged on the side surface of the hollow cylinder, a pipeline connecting port is arranged at the position, close to the spacer, of the hollow cylinder, an air pipe is arranged at the pipeline connecting port, and extends towards the end part of the hollow cylinder and is connected with an air charging ring arranged on the side surface of the hollow cylinder. The device is reasonable in design, high in detection efficiency and suitable for large-scale popularization, and the leakage position is judged.

Description

Detection platform for detecting axle air tightness

Technical Field

The invention belongs to the technical field of axle production detection equipment, and relates to a detection platform for axle air tightness detection.

Background

The axle is a bridge structure which is connected with the frame through a suspension and is provided with automobile wheels at two ends, and is a main component of an automobile running system. The axle has the functions of transmitting acting force and moment in all directions between the frame and wheels, has important influence on the performance of the automobile such as dynamic property, stability, bearing capacity and the like, and is divided into an integral type axle and a disconnected type axle according to different suspension structures. When the non-independent suspension is adopted, the middle part of the axle is a solid or hollow center beam, and the axle is an integral axle; the disconnected axle is of a movable joint type structure and is matched with an independent suspension. The main speed reducer, the differential mechanism, the half shaft and the like are arranged in the axle housing, and the air tightness of the axle housing is required to be detected before the assembly, so that the delivery quality of products is ensured. The air tightness of the axle housing is detected in a dry mode and a wet mode, wherein the axle housing is generally transferred to a detection station through a lifting appliance, the interior of the axle housing is inflated by an inflation device, and the air pressure level after the inflation is detected by an air pressure meter.

The prior patent CN201821571121.1 discloses a gas tightness detection device for axle housing, the air pump provides the air supply, the air supply gets into whole closing device through the pipeline, compress tightly the axle housing, the air supply gets into both ends solid fixed ring closing device through the pipeline, compress tightly axle housing both ends, the air supply gets into closing device under the bearing hole through the pipeline, make the bearing hole gland compress tightly the bearing hole of axle housing downwards, the air supply reachs the inside of axle housing through inner chamber air inlet unit, can detect the inside pressure of axle housing through external air supply manometer demonstration, thereby judge the gas tightness performance of axle housing. However, the gas in the axle housing needs to be fully filled and maintained for a period of time to obtain a corresponding detection structure, so that the detection efficiency is low; in addition, although the device can detect whether the air tightness of the axle housing of the axle meets the standard, the device cannot detect specific parts generating air leakage, and particularly, the axle is basically in a hanger connection state, so that the device is inconvenient for a common leakage detection device to scan, and is not beneficial to eliminating quality problems and production line problems from detection results.

Disclosure of Invention

Aiming at the technical problems of the detection device, the invention provides the detection platform for detecting the axle air tightness, which has reasonable design and higher detection efficiency and is favorable for judging the air leakage position.

In order to achieve the above purpose, the technical scheme includes that the detection platform for detecting the air tightness of the axle comprises a machine body and an air charging device, wherein a pair of pressing devices are arranged on the machine body, the pressing devices are used for clamping the axle and sealing two ends of the axle, the machine body is of a U-shaped structure, the two ends of the machine body are a left box body and a right box body respectively, an infrared detection device is arranged in the right box body, the infrared detection device comprises a base and a plurality of package detection assemblies distributed in a circular array mode relative to the center of the base, a driving assembly used for driving the package detection assemblies to release and roll the package detection assemblies is arranged on the power output side of the package detection assemblies, a winding strip is arranged at the detection end of the package detection assemblies, a plurality of infrared sensors which are uniformly distributed along the length direction of the winding strip are arranged on the centripetal side of the winding strip, a display screen which is in a spherical structure is arranged on the signal output side of the infrared sensors, a telescopic device which is connected with the machine body, the left box body is internally provided with the winding strip, the infrared detection device comprises a pressing cylinder, a spacer is arranged between the pressing cylinder and the side face, a hollow cylinder is arranged between the hollow cylinder and the hollow cylinder, a hollow cylinder is arranged at the hollow cylinder end connecting port which is arranged at the hollow cylinder end of the hollow cylinder and the hollow cylinder, and the hollow cylinder connecting port is arranged at the hollow cylinder end connecting port and the hollow cylinder end is arranged at the hollow cylinder end connecting port, and the hollow cylinder end sealing cylinder end is close to the hollow cylinder connecting port, and air cylinder end is arranged at the hollow cylinder end sealing cylinder, and air cylinder end is arranged at the hollow cylinder connecting port, and air cylinder end is close to the hollow cylinder end, and air cylinder end is arranged at the hollow cylinder and air tube.

Preferably, the package detection assembly comprises an installation seat hinged with the seat surface of the base, a package box connected with the installation seat in a shaft mode is arranged on the installation seat, a winding and unwinding opening is formed in the package box, a winding shaft is arranged in the package box, and one end of the winding shaft is connected with the driving assembly.

Preferably, the mounting seat comprises two seat plates hinged with each other, and the hinge center of the seat plates is provided with a hinge shaft and a nut in threaded connection with the hinge shaft.

Preferably, the driving assembly comprises a driven bevel gear arranged at one end of the reel, a driving bevel gear shaft is arranged on the transmission side of the driven bevel gear, a straight gear is arranged at the shaft end of the driving bevel gear shaft, the straight gear shaft penetrates through the base, a gear ring which is meshed with all the straight gears and is driven is arranged on one side of the base, which faces away from the package detection device, of the base, an input gear shaft is arranged at the transmission end of one straight gear, and a motor is arranged at the power input end of the input gear shaft.

Preferably, the telescopic device comprises a plurality of pull plates corresponding to the winding strips one by one, pull holes are formed in the pull plates and used for being connected with pull buckles arranged at the ends of the winding strips, the pull plates are movably matched with pore channels arranged on the left box body, and telescopic cylinders connected with the pull plates one by one are arranged on one sides, back to the right box body, of the left box body.

Preferably, the spacer comprises two flange plates which are distributed oppositely and are of annular structures, and a plurality of connecting rods are arranged between the flange plates.

Preferably, the opposite sides of the left box body and the right box body are respectively provided with a flow dividing device, the flow dividing devices comprise end seats of hollow round platform structures, the conical surfaces of the end seats face away from the center of the machine body, and a plurality of flow dividing supporting legs connected with the machine body are arranged on the conical surfaces of the end seats.

Preferably, the front and rear surfaces of the left box body and the right box body are inclined surfaces, and the display screen is arranged on the inclined surfaces.

Compared with the prior art, the invention has the advantages and positive effects that:

1. according to the detection platform for detecting the air tightness of the axle, the driving assembly in the infrared detection device drives the package detection assembly to extend out of the winding strips from multiple directions, the end parts of the winding strips can penetrate through slings for hoisting the axle and are hung at the tension ends of the telescopic devices, all infrared sensors can cover the whole body of the axle and detect hot air leaked after being filled by the air charging device, the infrared sensors can feed detected information back to the display screen for workers to observe, and the workers can judge the actual leakage position of the axle according to the information fed back by the display screen; the hollow cylinder and the sealing plate of the pressing device not only can block the end part of the axle, but also can occupy a certain volume in the axle, thereby being beneficial to shortening the inflation period, and the infrared sensor on the winding strip can detect leaked hot air without long-time pressure maintaining. The device is reasonable in design, high in detection efficiency and suitable for large-scale popularization, and the leakage position is judged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a detection platform (without an inflator) for axle air tightness detection;

fig. 2 is an isometric view of the axle airtightness detection platform in the other direction;

FIG. 3 is a cross-sectional view of an axle airtightness detection platform;

FIG. 4 is an enlarged schematic view of the structure A of FIG. 3;

FIG. 5 is an enlarged schematic view of the structure B of FIG. 2;

FIG. 6 is an isometric view of the base, drive assembly and partial package probe assembly;

FIG. 7 is a rear view of the drive assembly;

FIG. 8 is an isometric view of a telescoping device;

FIG. 9 is an isometric view of a shunt device;

in the above figures:

1. a body; 1a, a left box body; 1b, right box; 1c, pore canal; 2. an inflator; 3. a compacting device; 31. a hold-down cylinder 32, a hollow cylinder; 33. a sealing plate; 4. an infrared detection device; 41. a base; 42. a package detection assembly; 421. winding strips; 421a, a pull buckle; 422. an infrared sensor; 423. a mounting base; 423a, seat plate; 423b, hinge shaft; 424. a roll box; 425. a reel; 43. a drive assembly; 431. a driven bevel gear; 432. a driving bevel gear shaft; 433. spur gears; 434. a gear ring; 435. an input gear shaft; 436. a motor; 44. a display screen; 5. a telescoping device; 51. pulling a plate; 52. pulling holes; 53. a telescopic cylinder; 6. a spacer; 61. a flange plate; 62. a connecting rod; 7. an air pipe; 8. an air-filling ring; 9. a shunt device; 91. an end head seat; 92. and a shunt support leg.

Detailed Description

In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.

As shown in fig. 1-9, the detection platform for detecting the air tightness of the axle provided by the invention comprises a machine body 1 and an air charging device 2, wherein a pair of pressing devices 3 are arranged on the machine body 1, the pressing devices 3 are used for clamping the axle and sealing two ends of the axle, the machine body 1 is of a U-shaped structure, two ends of the machine body are respectively provided with a left box body 1a and a right box body 1b, an infrared detection device 4 is arranged in the right box body 1b, the infrared detection device 4 comprises a base 41 and a plurality of package detection assemblies 42 distributed in a circular array relative to the center of the base 41, a driving assembly 43 used for driving the package detection assemblies to release and wind is arranged on the power output side of the package detection assemblies 42, a winding bar 421 is arranged at the detection end of the package detection assemblies 42, a plurality of infrared sensors 422 uniformly distributed along the length direction of the winding bar 421 are arranged on the centripetal side of the winding bar 421, the infrared sensor 422 is of a spherical structure, the signal output side of the infrared sensor is provided with a display screen 44 connected with the machine body 1, the inside of the left box body 1a is provided with a telescopic device 5 connected with a winding bar 421, the compressing device 3 comprises a compressing cylinder 31, a spacer 6 is arranged between the compressing cylinder 31 and the side surface of the machine body 1, the movable end of the compressing cylinder 31 is provided with a hollow cylinder 32, the hollow cylinder 32 movably penetrates through the spacer 6 and the machine body 1, the side surface of the hollow cylinder 32 is provided with a sealing plate 33 used for sealing the end part of an axle, the hollow cylinder 32 is provided with a pipeline connecting port at the position close to the spacer 6, the pipeline connecting port is provided with an air pipe 7 connected with an air charging device 2, the air medium of the air charging device 2 is hot air, the air pipe 7 extends towards the end part of the hollow cylinder 32 and is connected with an air charging ring 8 arranged at the side surface of the hollow cylinder 32, the air charging ring is directly connected with the air pipe to avoid the hot air from beating the hot air inside the hollow cylinder, the hot air is distributed from the air pipe output end to the interior of the axle by the air charging ring.

Specifically, the compression device 3 extends into the interior of the axle from both ends of the axle, and the output end of the inflation device 2 is also carried into the interior of the axle while the axle end is sealed. The inflator 2 fills the axle with hot gas having a certain temperature, and the infrared detector 4 detects the hot gas leaking from inside to outside. More specifically, the driving assembly 43 drives the different package detecting assemblies 42 to extend the winding bars 421 from a plurality of directions, and the winding bars 421 extend continuously outside the axle until the ends of the winding bars 421 pass through slings for hoisting the axle with external force assistance such as manual assistance and hang on the tension end of the telescopic device 5; since the spherical structure of the infrared sensor 422 obtains a larger actual detection area in a radial shape, and all the infrared sensors 422 can cover the whole body of the vehicle axle and detect the leaked hot air after being filled by the inflator 2, the infrared sensors 422 can feed back the detected information to the display screen 44 for workers to observe, and the display screen 44 can display the three-dimensional temperature condition of the outer surface of the vehicle axle, so that the workers can judge the actual leakage position of the vehicle axle according to the information fed back by the display screen 44. Further, the hollow cylinder 32 and the sealing plate 33 of the compressing device 3 not only can block the end of the axle, but also can occupy a certain volume in the axle, which is beneficial to shortening the inflation period, and the infrared sensor 422 on the winding bar 421 can detect leaked hot air without long-time pressure maintaining. The spacer 6 not only provides a mounting base for the hold-down cylinder 31, but also provides a shuttle neutral for the air tube 7, thereby enabling the hold-down cylinder 31 to drive the hollow cylinder 32 and simultaneously carry the air tube 7 to reciprocate.

In order to improve the utilization rate of the package detecting assembly 42, the package detecting assembly 42 provided by the invention comprises a mounting seat 423 hinged with the seat surface of the base 41, the hinged joint comprises a fixed hinged support connected with the base 41, the mounting seat 423 is provided with a package box 424 connected with the hinge, the package box 424 is provided with a winding opening, a scroll 425 is arranged in the package box 424, and one end of the scroll 425 is connected with the driving assembly 43. The winding box 424 is a container for the winding bar 421, and is used for ensuring the uniformity of the winding bar 421 after being stored; the winding and unwinding port is a movable port of the winding bar 421, and the driving assembly 43 winds and unwinds the winding bar 421 by driving the winding shaft 425.

Further, the mounting seat 423 includes two seat plates 423a hinged to each other, and a hinge shaft 423b and a nut screw-coupled to the hinge shaft 423b are provided at a hinge center of the seat plates 423 a. Wherein the nuts are used to lock the relative angular relationship of the hinge shaft 423b and the seat plates 423a, and the two ends of the reel 424 can be released by turning out the two seat plates 423a, thereby achieving the purpose of disassembling the package detecting assembly 42.

In order to improve the driving performance of the driving assembly 43 on the infrared detection device 4, the driving assembly 43 provided by the invention comprises a driven bevel gear 431 arranged at one end of a scroll 425, a driving bevel gear shaft 432 is arranged at the transmission side of the driven bevel gear 431, the shaft end of the driving bevel gear shaft 432 penetrates through the base 41 and is provided with a spur gear 433, a gear ring 434 which is meshed with all the spur gears 433 for transmission is arranged at one side of the base 41, which is away from the package detection device, the transmission end of one spur gear 433 is provided with an input gear 435, and the power input end of the input gear 435 is provided with a motor 436. In this way, the motor 436 drives the spur gear 433 engaged with the motor 436 to rotate by driving the input gear 435, and the gear ring 434 drives all the spur gears 433 to rotate under the driving condition of the spur gear 433, so that the driving bevel gear 432 effectively drives the driven bevel gear 431, and all the package detecting assemblies 42 can synchronously release and wind the winding strip 421.

In order to improve the detection capability of the device, the telescopic device 5 provided by the invention comprises a plurality of pull plates 51 which are in one-to-one correspondence with the winding strips 421, wherein pull holes 52 are arranged on the pull plates 51, the pull holes 52 are used for being connected with pull buckles 421a arranged at the end parts of the winding strips 421, the pull plates 51 are movably matched with pore passages arranged on the left box body 1a, and telescopic cylinders 53 which are connected with the pull plates 51 one by one are arranged at one side of the left box body 1a, which is opposite to the right box body 1 b. The winding bar 421 has certain rigidity and elasticity, after being released by the winding detection assembly 42, the winding bar 421 can extend towards the direction of the telescopic device 5 in a curved state, the telescopic cylinder 53 stretches and contracts by driving the pulling plate 51, the stretched pulling plate 51 can hang the pulling buckle 421a in the pulling hole 52 under the assistance of a person or a robot, and the purpose of controlling the tension of the winding bar 421 can be achieved after the telescopic cylinder 53 withdraws the pulling plate 51, so that the detection range of the infrared sensor 422 effectively covers the whole axle, and the purpose of detecting leakage is achieved.

In order to improve the utilization rate of the spacer 6, the spacer 6 provided by the invention comprises two flange plates 61 which are distributed oppositely and are of annular structures, and a plurality of connecting rods 62 are arranged between the flange plates 61. Wherein the flange plate 61 provides a mounting base for the compression cylinder and the distance between the compression cylinder and the machine body 1 is lengthened by the connecting rod 62, thereby providing a reasonable shuttle space for the air tube 7 and thus providing structural conditions for the motorized inflation.

In order to improve the matching performance of the telescopic device 5 and the infrared detection device 4, the invention is provided with the flow dividing device 9 on the opposite sides of the left box body 1a and the right box body 1b, the flow dividing device 9 comprises a head seat 91 with a hollow round platform structure, the conical surface of the head seat 91 faces away from the center of the machine body 1, and a plurality of flow dividing support legs 92 connected with the machine body 1 are arranged on the conical surface of the head seat 91. Wherein, the conical surface of the end seat 91 provides a guide for extending the winding bars 421, so that the winding bars 421 can extend towards the direction of the telescopic device 5 with the fusiform distribution feature, and the adjacent split supporting legs 92 provide a space for the winding bars 421, so as to avoid the cross of different winding bars 421 and disturbing the extending regularity of the winding bars 421.

In order to improve the practicability of the machine body 1, the front and rear surfaces of the left box body 1a and the right box body 1b provided by the invention are inclined surfaces, and the display screen 44 is arranged on the inclined surfaces. Wherein, after adopting the inclined plane design at the back of left box 1a and right box 1b, can avoid the axle to be shifted to the in-process that clamping device 3's centre gripping scope appears colliding with organism 1, and the slope design of display screen 44 then is favorable to the workman to observing both sides display screen 44, just can reach the purpose of observing through shifting the station by a wide margin.

The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an axle gas tightness detects and uses testing platform, includes organism and aerating device, be provided with a pair of closing device on the organism, closing device is used for the centre gripping axle and seals the both ends of axle, a serial communication port, the organism is U type structure and its both ends are left box and right box respectively, the inside of right box is provided with infrared detection device, infrared detection device includes base and a plurality of package detection subassembly that is circular array distribution about the base center, package detection subassembly's power take off side is provided with the actuating assembly that is used for driving it to release and rolling, package detection subassembly's detection end is provided with the reel, the centripetal side of reel is provided with a plurality of infrared sensors along its length direction evenly distributed, infrared sensor is spherical structure and its signal take off side is provided with the display screen of being connected with the organism, the inside of left box is provided with the telescoping device of being connected with the reel, compressing tightly is provided with the spacer between jar and the organism side, the expansion end that compresses tightly is provided with circular array distribution, the expansion end that is provided with of compressing tightly, the hollow cylinder and the hollow cylinder are provided with the hollow tube, hollow tube is connected with the hollow tube and hollow tube is located at the hollow tube and is connected with the hollow tube and air tube seal plate, hollow tube is located at the side that the side of the hollow tube is connected with the hollow tube, hollow tube is connected with the hollow tube and air tube is set up the air tube, and air tube is connected with the side seal plate, and air pipe is set up the side.

2. The detecting platform for detecting the air tightness of the axle according to claim 1, wherein the package detecting assembly comprises a mounting seat hinged with a seat surface of the base, a package box connected with the mounting seat in a shaft mode is arranged on the mounting seat, a winding and unwinding opening is formed in the package box, a winding shaft is arranged in the package box, and one end of the winding shaft is connected with the driving assembly.

3. The detecting platform for axle airtightness detection according to claim 2, wherein the mounting base includes two seat plates hinged to each other, and a hinge shaft and a nut screw-coupled with the hinge shaft are provided at a hinge center of the seat plates.

4. The detection platform for axle air tightness detection according to claim 3, wherein the driving assembly comprises a driven bevel gear arranged at one end of the reel, a driving bevel gear shaft is arranged on the transmission side of the driven bevel gear, the shaft end of the driving bevel gear shaft penetrates through the base and is provided with spur gears, a gear ring which is in meshed transmission with all the spur gears is arranged on one side of the base, which faces away from the package detection device, the transmission end of one of the spur gears is provided with an input gear shaft, and the power input end of the input gear shaft is provided with a motor.

5. The detecting platform for detecting the air tightness of the axle according to claim 1, wherein the telescopic device comprises a plurality of pull plates which are in one-to-one correspondence with the winding strips, pull holes are formed in the pull plates and are used for being connected with pull buckles arranged at the ends of the winding strips, the pull plates are in movable fit with pore passages arranged on a left box body, and telescopic cylinders which are in one-to-one connection with the pull plates are arranged on one side, facing away from the right box body, of the left box body.

6. The platform for detecting air tightness of axles according to claim 1, wherein the spacer comprises two flange plates which are distributed oppositely and have a ring-shaped structure, and a plurality of connecting rods are arranged between the flange plates.

7. The detecting platform for detecting the air tightness of the axle according to claim 1, wherein the opposite sides of the left box body and the right box body are respectively provided with a flow dividing device, the flow dividing devices comprise end seats of hollow round platform structures, the conical surfaces of the end seats face away from the center of the machine body, and a plurality of flow dividing supporting legs connected with the machine body are arranged on the conical surfaces of the end seats.

8. The detecting platform for detecting the air tightness of the axles according to claim 1, wherein the front and rear surfaces of the left box body and the right box body are inclined surfaces, and the display screen is arranged on the inclined surfaces.