CN215985051U - Bridge body leakproofness detection device - Google Patents

Abstract

The utility model provides a bridge body sealing performance detection device. The method comprises the following steps: the device comprises a first clamping device, a second clamping device, a third clamping device, a fourth clamping device and a sealing test device which are arranged on a base, wherein the first clamping device and the second clamping device are used for clamping the middle part of a bridge body; the third clamping device and the fourth clamping device are used for clamping two ends of the bridge body; the sealing test device is used for testing the sealing performance of the bridge body; the first clamping device and the second clamping device are positioned on two opposite sides of the bridge body; the third clamping device and the fourth clamping device are positioned at two ends of the bridge body; the sealing test device is arranged on the third clamping device. The middle part of the bridge body is clamped through a limiting plate of the first clamping device and a first blocking plate of the second clamping device; the two ends of the bridge body are clamped through a second blocking plate on the third clamping device and a third blocking plate on the fourth clamping device; the sealing performance of the bridge body is verified by pressurizing the cavity of the bridge body through the sealing test device and maintaining pressure.

Description

Bridge body leakproofness detection device

Technical Field

The utility model relates to the technical field of sealing performance detection, in particular to a bridge body sealing performance detection device.

Background

The shell of the rear axle speed reducer of the axle is one of the main parts of the rear axle body of the lorry, is designed according to special requirements, and consists of universal plate welding parts. The main function is that, according to the processing requirement of the part to be processed, arrange each main shaft position, heavy load vehicle gear oil is generally adopted in the lubrication of spiral bevel gear in the drive axle assembly, according to characteristics such as gear oil viscosity, need can scribble the sealed glue processing and use threaded connection with axle housing body mounting surface at the reduction gear, prevent that gear oil from leaking and leading to the problem of part lubrication failure, consequently to its sealing performance detection extremely important to improving product quality and brand competitiveness. At present, CAE is generally adopted to respectively calculate the joint surface pressure distribution of a shell in an ideal fastening state and the relative dislocation quantity of the joint surface of the shell in a loaded state for indirectly verifying the sealing performance of the shell of the speed reducer in the domestic drive axle industry, no related specific bench test method is available, and the influence of the actual working condition on the sealing cannot be reflected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bridge body sealing performance detection device which is used for testing the sealing performance of a bridge body, verifying the combination condition of a shell combination surface and a welding seam, effectively evaluating the leakage risk of the shell combination surface and the welding seam and providing effective verification for sealing design. The specific scheme is as follows:

a bridge seal detection apparatus, comprising: a base, a first clamping device, a second clamping device, a third clamping device and a fourth clamping device which are arranged on the base,

the first clamping device and the second clamping device are respectively positioned on two sides of the bridge body and used for fixing the bridge body;

the third clamping device and the fourth clamping device are respectively positioned at two ports of the bridge body and are used for sealing the bridge body;

and a pressurizing opening is formed in the third clamping device or the fourth clamping device, and the inside of the sealed bridge body is communicated with the pressurizing device through the pressurizing opening.

Further, the first clamping device comprises an arc-shaped support, and a supporting plate and a limiting plate which are arranged on one side of the arc-shaped support;

the bottom of the arc-shaped support is fixed on the base, one side of the top of the arc-shaped support is fixedly connected with one surface of the limiting plate, and the other surface of the limiting plate is abutted against one side surface of the bridge body;

further, one side of the top of the supporting plate is fixedly connected with the arc-shaped support, the bottom of the supporting plate is fixedly connected with the base, and the supporting plate is located below the limiting plate.

Further, the second clamping device comprises a first support and a first air cylinder;

the piston end of the first cylinder faces the other side face of the bridge body, and the piston end is fixedly connected with a first blocking plate;

the number of the second clamping devices is two, and the two second clamping devices are symmetrically arranged.

Further, the second clamping device further comprises a movable connecting piece;

the movable connecting piece comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially and rotatably connected;

one end of the first connecting rod, which is far away from the second connecting rod, is fixedly connected with the piston end of the first cylinder;

a second support is arranged at the bottom of the second connecting rod;

the bottom of the second support is fixedly connected with the base, and the top of the second support is rotatably connected with a second connecting rod through a connecting plate;

and a first blocking plate is arranged at one end, far away from the second connecting rod, of the third connecting rod.

Furthermore, a vertical clamping plate is arranged on one side surface of the first blocking plate opposite to the bridge body, a limiting groove is arranged on the clamping plate,

the third connecting rod is two U type poles, two the U type pole rotates respectively to be connected at the upper surface and the lower surface of second connecting rod, the opening joint of U type pole is in the spacing inslot.

Further, the third clamping device comprises a third support and a second blocking plate;

the upper part of the third support is fixedly connected with one surface of the second blocking plate, the other surface of the second blocking plate is abutted against one port of the bridge body, the pressurizing port is positioned on the second blocking plate, and an air inlet pipe penetrates through the second blocking plate through the pressurizing port;

one end of the air inlet pipe is communicated with the interior of the bridge body, the other end of the air inlet pipe is communicated with the pressurizing device, and the air inlet pipe is further provided with a pressure gauge.

Furthermore, the third support comprises a bottom plate and two triangular wall plates, the bottom plate is fixedly connected with the base, the bottoms of the two triangular wall plates are respectively fixedly connected with the bottom plate, and the bottom plate and the two triangular wall plates form a triangular support seat;

one surface of the second blocking plate is fixedly connected with the upper parts of the two wall plates respectively.

Further, the fourth clamping device comprises a fourth support and a second air cylinder,

the piston end of the second cylinder faces the third clamping device, and the piston end of the second cylinder is connected with a third blocking plate.

Furthermore, the surfaces of the first blocking plate, the second blocking plate and the third blocking plate, which are contacted with the bridge body, are provided with sealing gaskets.

The utility model has the beneficial effects that:

the first clamping device and the second clamping device are respectively arranged on two opposite sides of the bridge body, so that the bridge body is placed on a first support of the first clamping device, and then the middle of the bridge body is clamped under the combined action of a limiting plate of the first clamping device and a first blocking plate of the second clamping device;

because the third clamping device and the fourth clamping device are arranged at the two ends of the bridge body, the two ends of the bridge body are clamped through the second blocking plate on the third clamping device and the third blocking plate on the fourth clamping device;

pressurizing the bridge body cavity through a sealing test device, and maintaining pressure to verify the sealing performance of the bridge body;

the limiting plate and the first blocking plate are arranged in the shape of a plate which is the same as the outline of the bridge body, so that the degree of fit between the limiting plate and the first blocking plate and the bridge body is improved, the limiting plate and the first blocking plate are arranged on two sides of the bridge body in a matched mode, the stress balance during clamping is improved, and the clamping of the first clamping device and the second clamping device on the middle of the bridge body is realized;

the clamping degree of the middle part of the bridge body can be conveniently adjusted according to actual requirements through the arrangement of the second clamping piece;

through set up sealed the pad on first closure plate, second closure plate and third closure plate, improved whole testing arrangement's sealing performance to the accuracy of whole test has been improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an axonometric view of an automatic clamping and pressure maintaining device for a bridge body sealing test in an embodiment of the utility model;

FIG. 2 is a top view of an automatic clamping and pressure maintaining device for a bridge body sealing test according to an embodiment of the present invention;

FIG. 3 is a left side view of an automatic clamping and pressure maintaining device for a bridge body sealing test according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first clamping device according to an embodiment of the present invention;

figure 5 is a schematic view of a first closure plate according to an embodiment of the present invention,

the bridge comprises a bridge body 1, a first clamping device 2, a second clamping device 3, a third clamping device 4, a fourth clamping device 5, a base 6, a first support 21, an arc-shaped support 22, a limiting plate 23, a second support 31, a first air cylinder 32, a connecting plate 33, a first connecting rod 34, a second connecting rod 35, a third connecting rod 36, a first blocking plate 37, a supporting leg 38, a clamping plate 39, a fourth support 41, a second blocking plate 42, a bottom plate 43, a wall plate 44, an air inlet pipe 45, a pressure gauge 46, a fifth support 51, a second air cylinder 52 and a third blocking plate 53.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

A bridge seal test apparatus according to the accompanying figures 1-4, comprising: a base 6 and a first clamping device 2, a second clamping device 3, a third clamping device 4 and a fourth clamping device 5 which are arranged on the base 6,

the first clamping device 2 and the second clamping device 3 are respectively positioned at two sides of the bridge body 1 and used for fixing the bridge body 1;

the third clamping device 4 and the fourth clamping device 5 are respectively positioned at two ports of the bridge body 1 and used for sealing the bridge body 1;

and a pressurizing opening is formed in the third clamping device 4 or the fourth clamping device 5, and the inside of the sealed bridge body 1 is communicated with the pressurizing device through the pressurizing opening.

It should be noted that, in the device, the first clamping device 2 and the second clamping device 3 are correspondingly arranged at two sides of the middle of the bridge body 1 to clamp the middle of the bridge body 1, the second clamping device 3 is symmetrically arranged along the bridge body 1 along the length direction of the bridge body 1 by taking the center of the bridge body 1 as a reference, and the first cylinder 32 and the second cylinder 52 adopted by the device are both double-shaft cylinders, so that the clamping force on the middle of the bridge body 1 is sufficient and the clamping is more stable; the third clamping device 4 and the fourth clamping device 5 clamp the bridge body 1 from two ends of the bridge body 1, and it should be noted that a pressurizing device is communicated with the third clamping device 4 or the fourth clamping device 5, so that the third clamping device 4 or the fourth clamping device 5 clamps one end of the bridge body 1, and the other end of the bridge body 1 is inflated and pressurized through the pressurizing device, thereby completing the sealing detection of the bridge body 1.

In one embodiment of the present invention, the first clamping device 2 includes an arc support 22, and a supporting plate 21 and a limiting plate 23 disposed on one side of the arc support 22;

the bottom of the arc-shaped support 22 is fixed on the base 6, one side of the top of the arc-shaped support 22 is fixedly connected with one surface of the limiting plate 23, and the other surface of the limiting plate 23 is abutted against one side surface of the bridge body 1.

In an embodiment of the present invention, one side of the top of the supporting plate 21 is fixedly connected to the arc-shaped support 22, the bottom of the supporting plate 21 is fixedly connected to the base 6, and the supporting plate 21 is located below the limiting plate 2.

It should be noted that, the side of the limiting plate 23 contacting the bridge body 1 is provided with a sealing gasket, the supporting plate 21 of the present invention is mainly used for erecting the bridge body 1, and any shape of supporting plate with any structure can be used.

In one embodiment of the present invention, the second clamping device 3 comprises a first seat 31 and a first cylinder 32;

the piston end of the first cylinder 32 faces the other side surface of the bridge body 1, and a first blocking plate 37 is fixedly connected to the piston end;

the number of the second clamping devices 3 is two, and the two second clamping devices 3 are symmetrically arranged.

In one embodiment of the utility model, said second clamping means 3 further comprise a movable connection;

the movable connecting piece comprises a first connecting rod 34, a second connecting rod 35 and a third connecting rod 36 which are connected in sequence in a rotating way;

the end of the first connecting rod 34 far away from the second connecting rod 35 is fixedly connected with the piston end of the first air cylinder 32;

a second support 33 is arranged at the bottom of the second connecting rod 35;

the bottom of the second support 33 is fixedly connected with the base 6, and the top of the second support is rotatably connected with a second connecting rod 35 through a connecting plate;

the end of the third link 36 away from the second link 35 is provided with a first blocking plate 37.

In one embodiment of the present invention, a vertical clamping plate is arranged on one side surface of the first blocking plate 37 opposite to the bridge body 1, a limiting groove is arranged on the clamping plate,

the third connecting rod 36 is two U-shaped rods, the two U-shaped rods are respectively rotatably connected to the upper surface and the lower surface of the second connecting rod 35, and the openings of the U-shaped rods are clamped in the limiting grooves.

It should be noted that, in the present invention, a vertical clamping plate is disposed on a surface of the first blocking plate 37 contacting with the third connecting rod 36, and a limiting groove matching with the third connecting rod 36 is disposed on the vertical clamping plate, so that the third connecting rod 36 is clamped and just clamped on the clamping plate, meanwhile, the other end of the third connecting rod 36 is rotatably connected with the second connecting rod 35 and symmetrically disposed on the upper and lower sides of the second connecting rod 35, and one end of the second connecting rod 35 contacting with the third connecting rod 36 abuts against the clamping plate.

In one embodiment of the utility model, said third clamping means 4 comprise a third seat 41 and a second shutter 42;

the upper part of the third support 41 is fixedly connected with one surface of the second blocking plate 42, the other surface of the second blocking plate 42 is abutted against one port of the bridge body 1, the pressurizing port is positioned on the second blocking plate 42, and an air inlet pipe 45 penetrates through the second blocking plate 42 through the pressurizing port;

one end of the air inlet pipe 45 is communicated with the interior of the bridge body 1, the other end is communicated with the pressurizing device,

the air inlet pipe 45 is also provided with a pressure gauge 46.

In an embodiment of the present invention, the third supporting seat 41 includes a bottom plate 43 and two triangular wall plates 44, the bottom plate 43 is fixedly connected with the base 6, the bottoms of the two triangular wall plates 44 are respectively fixedly connected with the bottom plate 43, and the bottom plate 43 and the two triangular wall plates 44 form a triangular supporting seat;

one surface of the second blocking plate 42 is fixedly connected with the upper parts of the two wall plates 44 respectively.

In one embodiment of the present invention, said fourth clamping means 5 comprises a fourth seat 51 and a second cylinder 52,

the piston end of the second cylinder 52 faces the third clamping device 4, and a third blocking plate 53 is connected to the piston end of the second cylinder 52.

In one embodiment of the present invention, the first blocking plate 37, the second blocking plate 42 and the third blocking plate 53 are provided with sealing gaskets on the surfaces contacting with the bridge body 1.

It should be noted that, in the present invention, the clamping of the first blocking plate 37 and the third blocking plate 53 to the bridge body 1 can also be achieved in other manners, and in this embodiment, for the consideration of stability and accuracy, the clamping of the first blocking plate 37 and the third blocking plate 53 to the bridge body 1 is achieved by the first cylinder 32 and the second cylinder 52; the first cylinder 32, the second cylinder 52 and the pressure maintaining device are all in conventional electrical connection; the rotary connection of the utility model is realized by a conventional rotating shaft and a rotating hole; the supporting plate 21, the first support 31, the third support 41 and the fourth support 51 may also be supports with other shapes and forms, in this embodiment, in consideration of structural stability and convenience of connection, the first support 31, the third support 41 and the fourth support 51 are set to be triangular bases formed by a square bottom plate and two triangular wall plates arranged at two opposite sides of the square bottom plate.

The working process of the device is as follows: firstly, placing the bridge body 1 on the top of a supporting plate 21, enabling an arc plate 22 and a second clamping device 3 to be located on two opposite sides in the middle of the bridge body 1, enabling a third clamping device 4 and a fourth clamping device 5 to be located at two ends of the bridge body 1, after adjusting the approximate position of the bridge body 1, enabling one side of the bridge body 1 to be tightly attached to a sealing pad on a limiting plate 23, enabling one end of an air inlet of the bridge body 1 to be connected with a second blocking plate 42, then ventilating a first air cylinder 32 and a second air cylinder 52, enabling a piston of the first air cylinder 32 to stretch out and draw back, and enabling a first blocking plate 37 and the limiting plate 23 to jointly act to preliminarily clamp or loosen the middle of the bridge body 1; the piston of the second cylinder 52 stretches out and draws back, so that the third blocking plate 53 and the second blocking plate 42 work together to loosen or clamp the end parts of the two ends of the bridge body 1;

when the sealing performance is tested, the middle part and the end part of the bridge body 1 are simultaneously tightened to ensure that the clamping is airtight; at the moment, one end of the air pipe 45 is communicated with the cavity in the bridge body 1, the other end of the air pipe is communicated with a pressurizing device for pressurizing, and the pressure is maintained after the interior of the cavity reaches the test pressure; and at the moment, the second clamping device 3 and the third clamping device 4 are loosened, soap liquid is coated at the welding seam of the bridge body 1, the leakage condition is checked, and the air tightness is ensured to be qualified.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A bridge seal detection apparatus, comprising: a base (6), and a first clamping device (2), a second clamping device (3), a third clamping device (4) and a fourth clamping device (5) which are arranged on the base (6),

the first clamping device (2) and the second clamping device (3) are respectively positioned at two sides of the bridge body (1) and used for fixing the bridge body (1);

the third clamping device (4) and the fourth clamping device (5) are respectively positioned at two ports of the bridge body (1) and used for sealing the bridge body (1);

and a pressurizing opening is formed in the third clamping device (4) or the fourth clamping device (5), and the inside of the sealed bridge body (1) is communicated with the pressurizing device through the pressurizing opening.

2. The bridge body sealing performance detection device according to claim 1, wherein the first clamping device (2) comprises an arc-shaped support (22), and a supporting plate (21) and a limiting plate (23) which are arranged on one side of the arc-shaped support (22);

the bottom of the arc-shaped support (22) is fixed on the base (6), one side of the top of the arc-shaped support (22) is fixedly connected with one side of the limiting plate (23), and the other side of the limiting plate (23) is abutted to one side of the bridge body (1).

3. The bridge body sealing performance detection device according to claim 2, wherein one side of the top of the supporting plate (21) is fixedly connected with the arc-shaped support (22), the bottom of the supporting plate (21) is fixedly connected with the base (6), and the supporting plate (21) is located below the limit plate (23).

4. A bridge seal detection device according to claim 1, wherein the second clamping device (3) comprises a first seat (31) and a first cylinder (32);

the piston end of the first cylinder (32) faces the other side face of the bridge body (1), and a first blocking plate (37) is fixedly connected to the piston end;

the number of the second clamping devices (3) is two, and the two second clamping devices (3) are symmetrically arranged.

5. A bridge seal detection device according to claim 4, wherein the second clamping means (3) further comprises a movable connection;

the movable connecting piece comprises a first connecting rod (34), a second connecting rod (35) and a third connecting rod (36) which are connected in sequence in a rotating manner;

one end of the first connecting rod (34) far away from the second connecting rod (35) is fixedly connected with the piston end of the first cylinder (32);

a second support (33) is arranged at the bottom of the second connecting rod (35);

the bottom of the second support (33) is fixedly connected with the base (6), and the top of the second support is rotatably connected with a second connecting rod (35) through a connecting plate;

and a first blocking plate (37) is arranged at one end, far away from the second connecting rod (35), of the third connecting rod (36).

6. A bridge sealing test device as claimed in claim 5, characterized in that a vertical clamping plate is arranged on one side of the first blocking plate (37) opposite to the bridge (1), and a limiting groove is arranged on the clamping plate,

the third connecting rod (36) is two U-shaped rods, the two U-shaped rods are respectively rotatably connected to the upper surface and the lower surface of the second connecting rod (35), and the openings of the U-shaped rods are clamped in the limiting grooves.

7. A bridge seal detection device according to claim 4, wherein the third clamping means (4) comprises a third seat (41) and a second closure plate (42);

the upper part of the third support (41) is fixedly connected with one surface of the second blocking plate (42), the other surface of the second blocking plate (42) is abutted against one port of the bridge body (1), the pressurizing port is positioned on the second blocking plate (42), and an air inlet pipe (45) penetrates through the second blocking plate (42) through the pressurizing port;

one end of the air inlet pipe (45) is communicated with the inside of the bridge body (1), the other end of the air inlet pipe is communicated with the pressurizing device, and the air inlet pipe (45) is further provided with a pressure gauge (46).

8. The device for detecting the sealing performance of the bridge body according to claim 7, wherein the third support (41) comprises a bottom plate (43) and two triangular wall plates (44), the bottom plate (43) is fixedly connected with the base (6), the bottoms of the two triangular wall plates (44) are respectively fixedly connected with the bottom plate (43), and the bottom plate (43) and the two triangular wall plates (44) form a triangular support seat;

one surface of the second blocking plate (42) is fixedly connected with the upper parts of the two wall plates (44) respectively.

9. A bridge seal detection device according to claim 8, wherein said fourth clamping means (5) comprises a fourth seat (51) and a second cylinder (52),

the piston end of the second cylinder (52) faces the third clamping device (4), and the piston end of the second cylinder (52) is connected with a third blocking plate (53).

10. A device for detecting the sealing performance of a bridge body according to claim 9, wherein the surfaces of the first blocking plate (37), the second blocking plate (42) and the third blocking plate (53) which are in contact with the bridge body (1) are provided with sealing gaskets.

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