Salt spray testing machine for metal structural member

Abstract

The utility model relates to the technical field of salt spray testing of metal structural parts, and discloses a salt spray testing machine for metal structural parts, which comprises a salt spray experimental box, a partition plate is mounted on the inner side wall of the salt spray experimental box, a spray tower and a metering bottle are arranged on the partition plate, a conical disperser is sleeved in the spray tower, and the conical disperser comprises a conical top and a spray pipe. Sliding grooves are formed in the side wall of the spray pipe, sliding rod assemblies are slidably installed in the two sliding grooves, the upper ends of the two sliding rod assemblies are jointly and fixedly connected with a top plate, and a cone top is installed at the lower end of the top plate. The upper end of the salt spray experiment box is hinged with a sealing top cover; a control box is arranged on one side of the salt spray experiment box, a brine box water inlet is formed in the upper end face of the control box, and the outer wall of the control box is fixedly connected with a saturation barrel water inlet. The salt mist sedimentation rate can be conveniently and rapidly adjusted by adjusting the height of the conic node, when the conic node is lifted to the highest point, the conic node can rotate towards one side to expose the opening in the upper end of the spray pipe, maintenance and overhaul are convenient, the conic node can be rapidly reset after maintenance and overhaul are finished, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of salt spray testing of metal structural parts, and specifically relates to a salt spray testing machine for metal structural parts. Background Technique

[0002] The usage environment of metal structural parts is complex. After production and processing, durability testing needs to be carried out on them. Salt spray testing can assess their salt corrosion resistance. To shorten the testing time, a salt spray testing machine is required. The salt spray testing machine can artificially simulate a salt spray environment to assess the salt corrosion resistance of metal structural parts.

[0003] For example, the patent document CN218524554U discloses a salt spray device, including a salt spray machine, a storage cage, a brine tank and a pump. The salt spray machine includes a main body, a spray head and a rotating rod; the main body is provided with a salt spray chamber; the spray head protrudes from the chamber wall of the salt spray chamber and is adapted to spray salt spray into the salt spray chamber; the rotating rod protrudes from the chamber wall of the salt spray chamber and is adapted to rotate relative to the main body; the storage cage is fixedly connected to the rotating rod and includes a number of grid bars arranged horizontally and vertically. Each grid bar encloses a storage chamber for accommodating samples and enabling the samples to roll inside. A number of grid holes communicating with the storage chamber are also formed between each grid bar, so that the salt spray sprayed by the spray head can enter the storage chamber; however, there are still many deficiencies in this prior art. For example, there is no conical disperser with adjustable height on the spray head, and the salt spray concentration cannot be quickly adjusted and the salt spray cannot be evenly diffused throughout the experimental chamber. Content of the Utility Model

[0004] The purpose of the utility model is to provide a salt spray testing machine for metal structural parts to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A salt spray testing machine for metal structural parts, including a salt spray test chamber, characterized in that: a partition is installed on the inner side wall of the salt spray test chamber, a spray tower and a measuring bottle are provided on the partition, and a funnel is connected to the upper end of the measuring bottle; a conical disperser is sleeved inside the spray tower, the conical disperser includes a cone top and a spray pipe, a chute is opened on the side wall of the spray pipe, two slide bar assemblies are slidably installed in the two chutes, the upper ends of the two slide bar assemblies are fixedly connected together with a top plate, and the cone top is installed at the lower end of the top plate; a sealed top cover is hinged to the upper end of the salt spray test chamber; a control box is provided on one side of the salt spray test chamber, a brine tank water inlet is provided on the upper end face of the control box, and a saturated tank water inlet is fixedly connected to the outer wall of the control box.

[0006] As a further improvement of the above solution, the slide bar assembly includes a limit seat and a limit rod, the limit seat is rotatably connected to the limit rod, and a first fixing bolt is threadedly installed on the outside of the limit seat.

[0007] As a further improvement to the above solution, a rectangular nozzle mounting hole is provided on the side wall of the nozzle, a fixing plate is provided on the outer wall of the nozzle mounting hole, and a second fixing bolt is threadedly mounted on the fixing plate.

[0008] As a further improvement to the above solution, a rectangular water seal groove is provided at the upper end of the salt spray test chamber, a plurality of through holes are provided on the inner side wall of the water seal groove, and rubber plugs are installed in all of the plurality of through holes.

[0009] As a further improvement to the above solution, a valve is fixedly installed at the lower end of the inlet of the saturation barrel, a fixing bracket is sleeved on the outer wall of the inlet of the saturation barrel, and the fixing bracket is welded to the outer wall of the control box.

[0010] As a further improvement to the above solution, an air inlet is installed on the rear side wall of the control box, and a pressure gauge is fixedly installed on the air inlet.

[0011] As a further improvement to the above solution, a pressure regulating knob is provided on the front side wall of the control box, an LCD screen is embedded and installed on the inclined surface of the control box, and a maintenance port is provided on the outer wall of the control box.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In the present utility model, a conical disperser is sleeved inside the spray tower. The conical disperser includes a cone top and a nozzle. A chute is provided on the side wall of the nozzle, and a slide bar assembly is slidably installed in the two chutes. The upper ends of the two slide bar assemblies are fixedly connected to a top plate together. The cone top is installed at the lower end of the top plate. The cone top can slide up and down on the nozzle along with the slide bar assembly, which is convenient for adjusting the height of the cone top and can conveniently and quickly adjust the salt spray settlement rate. Further, the slide bar assembly includes a limit seat and a limit rod. The limit seat is rotatably connected to the limit rod, and a first fixing bolt is threadedly installed on the outside of the limit seat. After adjusting the cone top to a suitable height, it can be quickly fixed by a pair of first fixing bolts. When the slide bar assembly is lifted to the highest point, the limit rod can rotate to one side at the rotation connection, exposing the upper opening of the nozzle, which is convenient for observing the position when installing the nozzle, and is also convenient for cleaning and maintenance during daily maintenance or when a failure occurs. After the cleaning and maintenance are completed, the cone top can also be quickly reset, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 It is a three-dimensional structure schematic diagram of the first perspective after opening the sealed top cover of the present utility model;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the second perspective after opening the sealed top cover of the present utility model;

[0018] Figure 4 It is a structure schematic diagram of the spray tower in the present utility model;

[0019] Figure 5 It is a structure schematic diagram of the conical disperser in the present utility model;

[0020] Figure 6 It is a disassembled structure schematic diagram of the conical disperser in the present utility model;

[0021] Figure 7 It is a structure schematic diagram of the slide bar assembly in the present utility model.

[0022] In the figure: 1. Salt spray test chamber; 2. Partition board; 3. Spray tower; 4. Measuring bottle; 5. Funnel; 6. Conical disperser; 61. Cone top; 62. Spray pipe; 621. Nozzle mounting hole; 622. Fixed plate; 623. Second fixing bolt; 63. Chute; 64. Slide bar assembly; 641. Limit seat; 642. Limit rod; 643. First fixing bolt; 65. Top plate; 7. Sealed top cover; 8. Control box; 9. Water seal groove; 91. Through hole; 92. Rubber plug; 8. Control box; 81. Salt water tank water inlet; 82. Saturation barrel water inlet; 821. Valve; 822. Fixed bracket; 83. Air inlet; 84. Pressure gauge; 85. Pressure regulating knob; 86. Liquid crystal screen; 87. Maintenance port. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] According to an embodiment of the present utility model, a salt spray tester for metal structural parts is provided, as Figure 1 and Figure 2As shown in the figure, it includes a salt spray test chamber 1. A partition 2 is installed on the inner side wall of the salt spray test chamber 1. The partition 2 is movably installed and can be disassembled for cleaning. Many water-permeable holes are opened on the partition 2 to prevent the accumulation of salt spray and affect the test results. A spray tower 3 and a measuring bottle 4 are provided on the partition 2. The spray tower 3 and the measuring bottle 4 are placed on the partition 2 and can be flexibly changed in position according to the test needs. A funnel 5 is connected to the upper end of the measuring bottle 4. The salt spray sedimentation rate is calculated according to the liquid content in the measuring bottle 4, and the salt spray concentration is adjusted in time. A zigzag water seal groove 9 is opened at the upper end of the salt spray test chamber 1. A number of through holes 91 are opened on the inner side wall of the water seal groove 9. Rubber plugs 92 are installed in all the through holes 91. During the test, the water seal groove is filled with water, and the test environment inside the salt spray test chamber 1 is isolated from the outside world to avoid affecting the test results. After the test, the rubber plugs 92 are pulled out to quickly drain the stored water in the water seal groove 9. A sealed top cover 7 is hinged at the upper end of the salt spray test chamber 1.

[0025] As Figures 4 to 7 shown, a conical disperser 6 is sleeved inside the spray tower 3. The conical disperser 6 includes a cone top 61 and a spray pipe 62. A chute 63 is opened on the side wall of the spray pipe 62. A sliding rod assembly 64 is slidably installed in the two chutes 63. The upper ends of the two sliding rod assemblies 64 are fixedly connected together with a top plate 65. The cone top 61 is installed at the lower end of the top plate 65. Adjusting the height of the cone top 61 can control the amount of salt spray. The higher the cone top 61, the greater the amount of salt spray; the lower the cone top 61, the lower the amount of salt spray. The sliding rod assembly 64 includes a limit seat 641 and a limit rod 642. The limit seat 641 is rotatably connected to the limit rod 642. The limit rod 642 can just be installed into the chute 63. When the sliding rod assembly is raised to the highest point, the limit rod 642 can be rotated sideways to expose the upper end opening of the spray pipe 62, which is convenient for maintenance, cleaning, etc. A first fixing bolt 643 is installed on the outside of the limit seat 641 by threading, and the height of the cone top 61 can be quickly fixed.

[0026] As Figure 5 and Figure 6 shown, a rectangular nozzle installation hole 621 is opened on the side wall of the spray pipe 62. A fixing plate 622 is provided on the outer wall of the nozzle installation hole 621. A second fixing bolt 623 is installed on the fixing plate 622 by threading. After the nozzle is inserted into the nozzle installation hole 621, its position is adjusted, and it is quickly fixed with the second fixing bolt 623 to avoid affecting the test results.

[0027] As Figure 1 and Figure 2 shown, a control box 8 is provided on one side of the salt spray test chamber 1. A brine tank water inlet 81 is provided on the upper end face of the control box 8. A saturated barrel water inlet 82 is fixedly connected to the outer wall of the control box 8. A valve 821 is fixedly installed at the lower end of the saturated barrel water inlet 82. Before the test, the valve 821 is opened to add pure water to the saturated barrel water inlet 82. During the test, the valve 821 is closed to prevent the hot water inside from flushing out and causing danger. A fixing frame 822 is sleeved on the outer wall of the saturated barrel water inlet 82, and the fixing frame 822 is welded to the outer wall of the control box 8.

[0028] As Figures 1 to 3 shown, an air inlet 83 is installed on the rear side wall of the control box 8, a pressure gauge 84 is fixedly installed on the air inlet 83, a pressure regulating knob 85 is provided on the front side wall of the control box 8, and a liquid crystal screen 86 is embedded and installed on the inclined surface of the control box 8. During the test, the air inlet 83 is externally connected to compressed air, various data are observed through the liquid crystal screen 86, and the air pressure is adjusted according to the test requirements. The greater the air pressure, the greater the amount of salt spray. A maintenance port 87 is provided on the outer wall of the control box 8 to facilitate regular inspection and maintenance of the equipment and ensure the smooth and accurate progress of the test.

[0029] Before the test of this embodiment starts, open the valve 821 to add pure water through the saturated bucket water inlet 82, close the valve 821, add brine with a specified concentration through the brine tank water inlet 81, externally connect compressed air to the air inlet 83, open the sealing cover plate 7, tightly plug the through hole 91 with the rubber plug 92, add water to the water seal groove 9 up to the standard line, install the partition plate 2 in the salt spray test chamber 1, place the spray tower 3 and the measuring bottle 4 on the partition plate 2, loosen the first fixing bolt 643, raise the slide bar assembly 64 to the highest point, rotate the limit rod 642 to the side to expose the upper opening of the spray pipe 62, install the spray head into the spray head installation hole 621, observe the installation position of the spray head through the upper opening of the spray pipe 62, and fix the spray head with the second fixing bolt 623. Reset the slide bar assembly 64 and the cone top 61, place the metal structure to be tested in the salt spray test chamber 1 according to the test requirements, close the sealing top cover 7 and start the testing machine, adjust the height of the cone top according to the salt spray sedimentation rate, and change the amount of salt spray by adjusting the pressure regulating knob 85 until the test ends. Turn off the testing machine, open the sealing top cover 7, take out the tested metal structure, pull out the rubber plug 92, quickly drain the water stored in the water seal groove 9, drain the pure water and brine, and clean each component of the testing machine.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A salt spray testing machine for metal structural parts, comprising a salt spray test chamber (1), characterized in that: Inside the inner sidewall of the salt spray test chamber (1), a partition plate (2) is installed. A spray tower (3) and a metering bottle (4) are provided on the partition plate (2). The upper end of the metering bottle (4) is connected to a funnel (5). Inside the spray tower (3), a conical disperser (6) is sleeved. The conical disperser (6) includes a cone top (61) and a spray pipe (62). A chute (63) is opened on the sidewall of the spray pipe (62). A slide bar assembly (64) is slidably installed in the two chutes (63). The upper ends of the two slide bar assemblies (64) are fixedly connected together with a top plate (65). The cone top (61) is installed at the lower end of the top plate (65). The upper end of the salt spray test chamber (1) is hinged with a sealed top cover (7). On one side of the salt spray test chamber (1), there is a control box (8). On the upper end face of the control box (8), there is a brine tank water inlet (81). The outer wall of the control box (8) is fixedly connected with a saturated bucket water inlet (82).

2. The salt spray testing machine for a metal structural part according to claim 1, characterized in that: The slide bar assembly (64) includes a limit seat (641) and a limit rod (642). The limit seat (641) is rotatably connected to the limit rod (642). A first fixing bolt (643) is threadedly installed on the outside of the limit seat (641).

3. The salt spray testing machine for a metal structural member according to claim 1, wherein: A rectangular nozzle mounting hole (621) is opened on the sidewall of the spray pipe (62). An outer wall of the nozzle mounting hole (621) is provided with a fixing plate (622). A second fixing bolt (623) is threadedly installed on the fixing plate (622).

4. A salt spray testing machine for a metal structural member according to claim 1, characterized in that: A rectangular water seal groove (9) is opened at the upper end of the salt spray test chamber (1). A plurality of through holes (91) are opened on the inner sidewall of the water seal groove (9). Rubber plugs (92) are installed in the plurality of through holes (91).

5. A salt spray testing machine for a metal structural member according to claim 1, characterized in that: A valve (821) is fixedly installed at the lower end of the saturated bucket water inlet (82). A fixing frame (822) is sleeved on the outer wall of the saturated bucket water inlet (82). The fixing frame (822) is welded on the outer wall of the control box (8).

6. A salt spray testing machine for a metal structural member according to claim 1, characterized in that: An air inlet (83) is installed on the rear sidewall of the control box (8). A pressure gauge (84) is fixedly installed on the air inlet (83).

7. A salt spray testing machine for a metal structural member according to claim 1, characterized in that: A pressure regulating knob (85) is provided on the front sidewall of the control box (8). A liquid crystal screen (86) is embedded and installed on the inclined surface of the control box (8). A maintenance port (87) is provided on the outer wall of the control box (8).

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