CN106769079B

CN106769079B - Multifunctional environment device for fatigue test

Info

Publication number: CN106769079B
Application number: CN201611070224.5A
Authority: CN
Inventors: 任浩源; 景晶; 张�杰; 顾尚安; 奚锋
Original assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Current assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2020-05-01
Anticipated expiration: 2036-11-29
Also published as: CN106769079A

Abstract

The invention relates to the field of part fatigue tests, in particular to an environment device for a fatigue test. The utility model provides a fatigue test uses multi-functional environment device, includes frame and switch board, the frame is cube frame, and this environment device still includes heating module, cooling module and salt fog spray assembly, the sealed water receiving apron that is equipped with in frame bottom surface, and a plurality of module mounting positions that set to are equallyd divide to arbitrary side of frame, heating module and/or cooling module cartridge are equipped with sealed apron on other sides and the top surface of frame on module mounting position, the salt fog spray assembly mounting is on arbitrary one or more sealed apron, switch board control connection heating module, cooling module and salt fog spray assembly. The device can be matched with various modules in proper quantity according to different requirements of tests through combined modular design, has high universality, can meet the test requirements of various special environmental conditions, greatly improves the test efficiency and reduces the test cost.

Description

Multifunctional environment device for fatigue test

Technical Field

The invention relates to the field of part fatigue tests, in particular to an environment device for a fatigue test.

Background

The existing environment simulation device for the fatigue test of the automobile parts comprises high and low temperature and salt fog, is usually customized for a specific test, is designed for specific equipment, and has the advantages of low utilization rate, high cost and small application range. Because spare part structure is various, current environment case is mostly integral, hinders the installation of sample and anchor clamps and fatigue testing machine easily to can't adapt to the experimental demand of different grade type.

Disclosure of Invention

The multifunctional environment device for the fatigue test can be matched with a proper number of heating modules, cooling modules and salt spray spraying components according to different requirements of the test through a combined modular design, can realize multidirectional salt spray spraying, has high universality, can meet the test requirements of various special environment conditions, greatly improves the test efficiency and reduces the test cost.

The invention is realized by the following steps: the utility model provides a fatigue test uses multi-functional environment device, includes frame and switch board, the frame is cube frame, and this environment device still includes heating module, cooling module and salt fog spray assembly, the sealed water receiving apron that is equipped with in frame bottom surface, and a plurality of module mounting positions that set to are equallyd divide to arbitrary side of frame, heating module and/or cooling module cartridge are equipped with sealed apron on other sides and the top surface of frame on module mounting position, the salt fog spray assembly mounting is on arbitrary one or more sealed apron, switch board control connection heating module, cooling module and salt fog spray assembly.

The control cabinet comprises a power supply control box, a PLC control cabinet, a touch screen and a salt spray loop, wherein the power supply control box is electrically connected with a heating module, a cooling module, the PLC control cabinet and the touch screen, the PLC control cabinet is in control connection with the heating module, the cooling module, the salt spray component, the touch screen and the salt spray loop, the touch screen exchanges data with the PLC control cabinet through a human-computer interface, and the salt spray loop is communicated with the salt spray component through an air source and a liquid pipeline.

The heating module comprises an electric heating pipe, a heating module support and a hot air fan, the heating module support is installed on the module installation position, the electric heating pipe and the hot air fan are fixedly installed on the heating module support, and the hot air fan blows heat generated by the electric heating pipe into the frame.

The cooling module comprises a semiconductor refrigerator and a refrigeration module support, the refrigeration module support is installed on the module installation position, and the semiconductor refrigerator is fixedly installed on the refrigeration module support.

The salt spray spraying assembly comprises a connecting rod and a spray head arranged on the connecting rod, the connecting rod is arranged on a sealing cover plate through a sealing assembly, and the sealing cover plate is further provided with a water pipe joint and an air pipe joint for the spray head.

The multifunctional environment device also comprises a movable support, and the heating module and/or the cooling module are/is arranged on the movable support.

The multifunctional environment device for the fatigue test can be matched with a proper number of heating modules, cooling modules and salt spray spraying components according to different requirements of the test through combined modular design, can realize multidirectional salt spray spraying, has high universality, can meet the test requirements of various special environment conditions, greatly improves the test efficiency and reduces the test cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the multifunctional environment device for fatigue test according to the present invention;

FIG. 2 is an exploded view of the environmental test chamber of the present invention;

FIG. 3 is a schematic structural diagram of a control cabinet according to the present invention;

FIG. 4 is a schematic view of a heating module according to the present invention;

FIG. 5 is a schematic view of the cooling module of the present invention;

FIG. 6 is a schematic view of the structure of the salt spray assembly of the present invention.

In the figure: the system comprises a frame 1, a control cabinet 2, a heating module 3, a cooling module 4, a salt spray spraying assembly 5, a water receiving cover plate 6, a sealing cover plate 7, a movable support 8, a power supply control box 21, a PLC (programmable logic controller) 22, a touch screen 23, a salt spray loop 24, an electric heating pipe 31, a heating module support 32, a hot air fan 33, a semiconductor refrigerator 41, a refrigeration module support 42, a connecting rod 51, a spray nozzle 52 and a sealing assembly 53.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the description of the present invention, and equivalents fall within the scope of the invention defined by the appended claims.

Example 1

As shown in fig. 1 and 2, the multifunctional environment device for fatigue tests comprises a frame 1 and a control cabinet 2, wherein the frame 1 is a cubic frame, the environment device further comprises a heating module 3, a cooling module 4 and a salt spray spraying assembly 5, a water receiving cover plate 6 is hermetically mounted on the bottom surface of the frame 1, any one side surface of the frame 1 is uniformly divided into a plurality of module mounting positions, the heating module 3 and/or the cooling module 4 are inserted into the module mounting positions, sealing cover plates 7 are mounted on the other side surfaces and the top surface of the frame 1, the salt spray spraying assembly 5 is mounted on any one or more sealing cover plates 7, and the control cabinet 2 is in control connection with the heating module 3, the cooling module 4 and the salt spray spraying assembly 5;

in usual fatigue test, select appropriate quantity heating module 3 and cooling module 4 to assemble on module mounted position as required to select required integrated to have salt fog to spray subassembly 5's sealed apron 7 to assemble and cooperate the water receiving apron 6 of bottom surface on frame 1 and form an environmental test box, realized the adaptation to not using type environmental test, satisfy actual experimental demand.

In order to meet the requirements of some test projects needing to be carried out in open space, the invention also comprises a movable bracket 8, and the heating module 3 and/or the cooling module 4 are directly arranged on the movable bracket 8.

As shown in fig. 3, the control cabinet 2 includes a power control box 21, a PLC control cabinet 22, a touch screen 23 and a brine spray loop 24, the power control box 21 is electrically connected to the heating module 3, the cooling module 4, the PLC control cabinet 22 and the touch screen 23, the PLC control cabinet 22 is connected to the heating module 3, the cooling module 4, the brine spray component 5, the touch screen 23 and the brine spray loop 24, the touch screen 23 exchanges data with the PLC control cabinet 22 through a human-computer interface, and the brine spray loop 24 is communicated with the brine spray component 5 through an air source and a liquid pipeline.

As shown in fig. 4, the heating module 3 includes an electric heating tube 31, a heating module support 32 and a hot air fan 33, the heating module support 32 is installed at a module installation position, the electric heating tube 21 and the hot air fan 33 are fixedly installed at the heating module support 32, the hot air fan 33 blows heat generated by the electric heating tube 21 into the frame 1 and the environment test box, and the heating module support 32 is connected with the frame 1 in a sealing manner to achieve sealing and heat insulation effects.

As shown in fig. 5, the cooling module 4 includes a semiconductor cooler 41 and a cooling module support 42, the cooling module support 42 is installed at a module installation position, and the semiconductor cooler 41 is fixedly installed on the cooling module support 42; semiconductor cooler 41 produces the difference in temperature at back semiconductor refrigeration piece both ends after circular telegram, and cold-end fan blows the assigned position to the environmental test box in, and radiator fan discharges relevant heat, and sealed the linking to each other between refrigeration module support 42 and the frame 1 plays sealed and thermal-insulated effect.

As shown in fig. 6, the salt spray assembly 5 comprises a connecting rod 51 and a spray head 52 mounted on the connecting rod 51, wherein the connecting rod 51 is mounted on the sealing cover plate 7 through a sealing assembly 53, and a water pipe connector and a gas pipe connector for the spray head 52 are also arranged on the sealing cover plate 7; when the device is installed and operated, the position and the spraying direction of the spray head 52 are changed through the connecting rod 51, and the sealing cover plate 7 integrated with the salt spray spraying assembly 5 is installed on the side edge and/or the fixed edge of the frame 1 according to the test purpose and requirements.

In the open environmental test control using the movable support:

1. and mounting the heating module or the cooling module on the movable support.

2. A cooling fan air outlet on a hot air fan or a semiconductor refrigerator is aligned to a sample, and a surface-mounted thermal resistor is placed on the sample to serve as a temperature sensor.

3. And the sensor signal wire and the power supply control wire are connected into the control cabinet through the aviation plug. Control parameters, including controlled temperature and operating time, are modified on the touch screen.

4. The control cabinet automatically controls the start and stop of the heating module or the cooling module according to the program and the input parameters, and the temperature control of the designated position is realized.

In the closed environment test:

1. according to the technical requirements, a certain number of heating modules and/or cooling modules are mounted at the module mounting positions of the frame, such as two heating modules and two cooling modules in the embodiment.

2. And (4) placing the frame at a loading end of the fatigue equipment according to requirements, and installing the sample piece and the clamp.

3. If only control the temperature, then only sealed with sealed apron with each face of frame, the position of passing sealed apron between sample spare and equipment and sample spare and the mounting fixture leaves the hole of certain size, and the outside is thermal-insulated cotton parcel with waterproof cloth and aerogel, realizes thermal-insulated and waterproof. If salt spray is required to be added for spraying, a sealing cover plate integrated with a salt spray spraying assembly is arranged at the top or the side surface, and a spray head of the salt spray spraying assembly is adjusted to the position matched with the sample.

4. And connecting the circuits of the heating module, the cooling module and the salt spray spraying assembly and the water path and gas path with the designated interface of the control cabinet.

Related parameters are set through the touch screen, the electric heating pipe is controlled by the controller to heat at high temperature, the hot air fan sends heat into the box body, and the thermal resistor placed in the box body or on the sample piece transmits temperature signals to the controller, so that temperature closed-loop control is realized. The same cooling is performed. Salt fog sends salt water into atomizer through controller control water pump, and control electric proportional valve sends into the air of appointed atmospheric pressure shower nozzle control air supply and realizes the controllable spraying of flow, and the flow of spraying feeds back to the controller through the flowmeter in the water route, finally realizes spraying flow closed-loop control.

Claims

1. The utility model provides a fatigue test uses multi-functional environment device, includes frame (1) and switch board (2), frame (1) is cube frame, characterized by: the environment device further comprises a heating module (3), a cooling module (4) and a salt spray spraying assembly (5), wherein a water receiving cover plate (6) is hermetically arranged on the bottom surface of the frame (1), any one side surface of the frame (1) is uniformly divided into a plurality of module mounting positions, the heating module (3) and/or the cooling module (4) are inserted into the module mounting positions, sealing cover plates (7) are mounted on other side surfaces and top surfaces of the frame (1), the salt spray spraying assembly (5) is mounted on any one or more sealing cover plates (7), and the control cabinet (2) is in control connection with the heating module (3), the cooling module (4) and the salt spray spraying assembly (5);

the salt spray spraying assembly (5) comprises a connecting rod (51) and a spray head (52) arranged on the connecting rod (51), the connecting rod (51) is arranged on a sealing cover plate (7) through a sealing assembly (53), and a water pipe connector and an air pipe connector for the spray head (52) are also arranged on the sealing cover plate (7);

the control cabinet (2) comprises a power supply control box (21), a PLC control cabinet (22), a touch screen (23) and a salt spray loop (24), the power supply control box (21) is electrically connected with a heating module (3), a cooling module (4), the PLC control cabinet (22) and the touch screen (23), the PLC control cabinet (22) is in control connection with the heating module (3), the cooling module (4), the salt spray spraying assembly (5), the touch screen (23) and the salt spray loop (24), the touch screen (23) exchanges data with the PLC control cabinet (22) through a man-machine interface, and the salt spray loop (24) is communicated with the salt spray spraying assembly (5) through an air source and a liquid pipeline.

2. The multifunctional environment device for fatigue test as set forth in claim 1, wherein: heating module (3) include electric heating pipe (31), heating module support (32) and hot-blast fan (33), heating module support (32) are installed on module installation position, electric heating pipe (21) and hot-blast fan (33) fixed mounting are in heating module support (32), hot-blast fan (33) blow the heat that electric heating pipe (21) produced in to frame (1).

3. The multifunctional environment device for fatigue test as set forth in claim 1, wherein: the cooling module (4) comprises a semiconductor refrigerator (41) and a refrigeration module support (42), the refrigeration module support (42) is installed on a module installation position, and the semiconductor refrigerator (41) is fixedly installed on the refrigeration module support (42).

4. A multifunctional environment apparatus for fatigue tests as claimed in any one of claims 1 to 3, wherein: the multifunctional environment device further comprises a movable support (8), and the heating module (3) and/or the cooling module (4) are/is installed on the movable support (8).