An automatic feeding sand and dust test chamber

Abstract

This utility model discloses an automatic feeding sand and dust test chamber, belonging to the technical field of sand and dust test chambers. It includes a chamber body with legs fixed to both sides of the lower end. A placement plate is installed inside the chamber, and a door is hinged to the front of the chamber corresponding to the placement plate. A material cylinder is located on one side of the chamber, and a delivery pump is installed at the upper end of the cylinder. A pipe is installed between the delivery pump and the chamber body. This utility model, by setting up a sand-spraying component, activates a motor to drive a worm gear to rotate according to the position of the part to be tested placed on the placement plate. The worm gear rotation drives a rotating shaft to rotate, which in turn rotates the sand-spraying pipe within the chamber. Once the angle of the sand-spraying nozzle on the sand-spraying pipe corresponds to the position of the part, the motor is turned off. Sand particles are then transported to the sand-spraying pipe through a flexible hose and sprayed out through the sand-spraying nozzle. By setting up the sand-spraying component, the sand-spraying angle can be adjusted according to the position of the part, improving the sand-spraying effect and thus enhancing the testing accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand and dust test chambers, specifically relating to an automatic feeding sand and dust test chamber. Background Technology

[0002] A dust test chamber is a device used to simulate dusty environments. It is mainly used to test the sealing performance of product casings, especially for durability and reliability testing under extreme weather conditions.

[0003] The existing sand and dust test chamber cannot adjust the sand spraying direction according to the placement of the parts to be tested. Inaccurate sand spraying direction means that sand particles cannot be sprayed onto the parts, affecting the accuracy of the parts testing. At the same time, the existing device is not very effective in conveying the used sand particles back to the material cylinder through the negative pressure fan. Too many sand particles can easily cause the negative pressure fan to become clogged and damaged. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an automatic feeding sand and dust test chamber, which features the ability to adjust the sandblasting direction according to the placement of the part to be tested.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding sand and dust test chamber, comprising a chamber body, support legs fixed on both sides of the lower end of the chamber body, a placement plate installed inside the chamber body, a door hinged to the front end of the chamber body at a position corresponding to the placement plate, a material cylinder provided on one side of the chamber body, a conveying pump installed at the upper end of the material cylinder, a pipeline provided between the conveying pump and the chamber body, a solenoid valve provided on the pipeline, a sand return assembly provided between the lower end of the chamber body and the material cylinder, and a sand spraying assembly provided at the end of the pipeline away from the conveying pump.

[0006] Preferably, the sandblasting assembly includes a fixed plate, a sandblasting pipe, a rotating shaft, a flexible hose, a turbine, a first motor, a worm gear, and a limiting component. A flexible hose is installed at the end of the pipe furthest from the delivery pump, and a sandblasting pipe is installed at the other end of the flexible hose. One end of the sandblasting pipe has several sandblasting nozzles. The sandblasting pipe is connected to the housing via a rotating shaft. A turbine is fixed to one end of the rear rotating shaft. Two fixed plates are fixed at the rear end of the housing, corresponding to the turbine. A first motor is installed at one end of one of the fixed plates, and a worm gear is installed at the output end of the first motor. A limiting component is fixed on one side of the rotating shaft.

[0007] Preferably, the limiting component includes a rotating plate, a fixed rod, a slider, and an arc-shaped groove. A rotating plate is fixed on one side of the rotating shaft, a fixed rod is fixed at one end of the rotating plate near the housing, a slider is fixed at the other end of the fixed rod, and an arc-shaped groove corresponding to the slider is provided at the rear end of the housing.

[0008] Preferably, a bearing rotating seat is provided between the rotating shaft and the housing, the side of the slider is in close contact with the inner wall of the arc-shaped groove, and the rotating plate and the rotating shaft are welded together by pressure welding.

[0009] Preferably, the sand return assembly includes a sand outlet pipe, a conveying cylinder, a connecting column, a second motor, a sand inlet, a rotating rod, and a spiral blade. The sand outlet pipe is fixed at the lower end of the housing, and the conveying cylinder is fixed at the lower end of the sand outlet pipe. The conveying cylinder is connected to the support leg through the connecting column. The upper end of the conveying cylinder has a sand inlet corresponding to the sand outlet pipe. A second motor is installed at one end of the conveying cylinder, and a rotating rod is provided at the output end of the second motor. A spiral blade is fixed on the rotating rod.

[0010] Preferably, the side of the spiral blade is tangent to the inner wall of the conveying cylinder, and the end of the conveying cylinder away from the motor extends into the material cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a sandblasting assembly, according to the position of the part to be tested placed on the placement plate, turns on motor one to drive the worm gear to rotate. The rotation of the worm gear drives the rotating shaft to rotate through the turbine. The rotation of the rotating shaft drives the sandblasting pipe to rotate in the box. After the angle of the sandblasting nozzle on the sandblasting pipe corresponds to the position of the part, motor one is turned off. The pipe delivers sand particles to the sandblasting pipe through the hose and sprays them out through the sandblasting nozzle. By setting up the sandblasting assembly, the sandblasting angle can be adjusted according to the position of the part, improving the sandblasting effect and thus improving the accuracy of the test.

[0013] 2. This utility model, by setting up a sand return component, allows used sand to pass through the placement plate and fall into the conveying cylinder through the sand outlet pipe and sand inlet. Turning on the motor can drive the rotating rod to rotate, and the rotation of the rotating rod drives the spiral blade to rotate, which can transport the sand falling into the conveying cylinder, thereby transporting the sand to the material cylinder. By setting up a sand return component to transport the used sand back to the material cylinder, the effect is better, and the conveying mechanism is less likely to be blocked or damaged. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a sectional perspective view of the housing of this utility model;

[0016] Figure 3 This is a rear-view perspective view of the present invention;

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0018] Figure 5 This is a cross-sectional perspective view of the conveyor cylinder of this utility model;

[0019] In the diagram: 1. Box body; 2. Sandblasting assembly; 21. Fixing plate; 22. Sandblasting pipe; 23. Rotating shaft; 24. Hose; 25. Turbine; 26. Motor 1; 27. Worm gear; 28. Limiting assembly; 281. Rotating plate; 282. Fixing rod; 283. Sliding block; 284. Arc-shaped chute; 3. Sand return assembly; 31. Sand outlet pipe; 32. Conveying cylinder; 33. Connecting column; 34. Motor 2; 35. Sand inlet; 36. Rotating rod; 37. Spiral blade; 4. Placement plate; 5. Box door; 6. Material cylinder; 7. Conveying pump; 8. Pipeline; 9. Solenoid valve; 10. Support leg. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1-5 The present invention provides the following technical solution: an automatic feeding sand and dust test chamber, comprising a chamber body 1, support legs 10 fixed on both sides of the lower end of the chamber body 1, a placement plate 4 installed inside the chamber body 1, a door 5 hinged to the front end of the chamber body 1 at a position corresponding to the placement plate 4, a material cylinder 6 provided on one side of the chamber body 1, a conveying pump 7 installed on the upper end of the material cylinder 6, a pipe 8 provided between the conveying pump 7 and the chamber body 1, a solenoid valve 9 provided on the pipe 8, a sand return component 3 provided between the lower end of the chamber body 1 and the material cylinder 6, and a sand spraying component 2 provided at the end of the pipe 8 away from the conveying pump 7.

[0022] Specifically, the sandblasting assembly 2 includes a fixed plate 21, a sandblasting pipe 22, a rotating shaft 23, a flexible hose 24, a turbine 25, a motor 26, a worm gear 27, and a limiting assembly 28. The pipe 8 is connected to the end away from the delivery pump 7 with a flexible hose 24, and the other end of the flexible hose 24 is connected to the sandblasting pipe 22. One end of the sandblasting pipe 22 is provided with several sandblasting nozzles. The sandblasting pipe 22 is connected to the housing 1 through the rotating shaft 23. The turbine 25 is fixed to one end of the rotating shaft 23. Two fixed plates 21 are fixed at the rear end of the housing 1 at the position corresponding to the turbine 25. One fixed plate 21 is connected to the motor 26 at one end, and the output end of the motor 26 is provided with a worm gear 27. The limiting assembly 28 is fixed on the rotating shaft 23.

[0023] By adopting the above technical solution, according to the position of the part to be tested placed on the placement plate 4, the motor 26 is turned on to drive the worm gear 27 to rotate. The rotation of the worm gear 27 drives the rotating shaft 23 to rotate through the turbine 25. The rotation of the rotating shaft 23 can drive the sandblasting pipe 22 to rotate in the housing 1. After the angle of the sandblasting nozzle on the sandblasting pipe 22 corresponds to the position of the part, the motor 26 is turned off. The pipe 8 delivers sand particles to the sandblasting pipe 22 through the hose 24 and sprays them out through the sandblasting nozzle. By setting the sandblasting component 2, the sandblasting angle can be adjusted according to the position of the part, thereby improving the sandblasting effect and improving the test accuracy.

[0024] Specifically, the limiting component 28 includes a rotating plate 281, a fixing rod 282, a slider 283, and an arc-shaped groove 284. The rotating plate 281 is fixed on one side of the rotating shaft 23. The fixing rod 282 is fixed at one end of the rotating plate 281 near the housing 1. The slider 283 is fixed at the other end of the fixing rod 282. An arc-shaped groove 284 corresponding to the slider 283 is opened at the rear end of the housing 1.

[0025] By adopting the above technical solution, the rotating shaft 23 rotates to one side of the rotating plate 281 on one side of the rotating shaft 23, and the slider 283 at the other end of the fixed rod 282 slides in the arc-shaped groove 284. By setting the limiting component 28, the rotation of the sandblasting pipe 22 can be limited, so as to avoid the sandblasting pipe 22 rotating too much and causing the hose 24 to become tangled or damaged.

[0026] Specifically, a bearing rotating seat is provided between the rotating shaft 23 and the housing 1, the side of the slider 283 is in close contact with the inner wall of the arc-shaped slide groove 284, and the rotating plate 281 is welded to the rotating shaft 23 by pressure welding.

[0027] By adopting the above technical solution, the rotating shaft 23 can rotate in the housing 1, the slider 283 slides more stably in the arc-shaped groove 284, and the pressure welding makes the rotating plate 281 and the rotating shaft 23 more secure.

[0028] In this embodiment, when using the automatically feeding sand and dust test chamber, the device is installed in a suitable position, the part to be tested is placed on the placement plate 4 of the chamber 1, the chamber door 5 is closed, and the conveying pump 7 transports sand particles from the material cylinder 6 to the chamber 1 through the pipe 8, thereby simulating the usage state of the part in a sandy environment. The amount of sand discharged can be controlled by the solenoid valve 9. By setting the sand spraying component 2, according to the position of the part to be tested placed on the placement plate 4, the motor 26 is turned on to drive the worm gear 27 to rotate. The rotation of the worm gear 27 drives the rotating shaft 23 to rotate through the turbine 25. The rotation of the rotating shaft 23 drives the sand spraying pipe 22 to rotate in the chamber 1. After the angle of the sandblasting nozzle on 2 corresponds to the position of the part, the motor 26 is turned off. The pipe 8 transports sand particles to the sandblasting pipe 22 through the hose 24 and sprays them out through the sandblasting nozzle. By setting the sandblasting component 2, the sandblasting angle can be adjusted according to the position of the part to improve the sandblasting effect and thus improve the test accuracy. By setting the limiting component 28, the rotating shaft 23 rotates to one side of the rotating plate 281 on the rotating shaft 23. One end of the fixed rod 282 slides the slider 283 at the other end in the arc-shaped slide groove 284. By setting the limiting component 28, the rotation of the sandblasting pipe 22 can be limited to avoid the hose 24 from being entangled or damaged due to excessive rotation angle of the sandblasting pipe 22. Example

[0029] The difference between this embodiment and embodiment 1 is that the sand return assembly 3 includes a sand outlet pipe 31, a conveying cylinder 32, a connecting column 33, a second motor 34, a sand inlet 35, a rotating rod 36, and a spiral blade 37. The lower end of the housing 1 is fixed with a sand outlet pipe 31, and the lower end of the sand outlet pipe 31 is fixed with a conveying cylinder 32. The conveying cylinder 32 is connected to the support leg 10 through the connecting column 33. The upper end of the conveying cylinder 32 is provided with a sand inlet 35 corresponding to the sand outlet pipe 31. A second motor 34 is installed at one end of the conveying cylinder 32. A rotating rod 36 is provided at the output end of the second motor 34, and a spiral blade 37 is fixed on the rotating rod 36.

[0030] By adopting the above technical solution, the used sand passes through the placement plate 4 and falls into the conveying cylinder 32 through the sand outlet pipe 31 and the sand inlet 35. Turning on the motor 34 can drive the rotating rod 36 to rotate. The rotation of the rotating rod 36 drives the spiral blade 37 to rotate, which can transport the sand falling into the conveying cylinder 32, thereby transporting the sand to the material cylinder 6. By setting the sand return component 3 to transport the used sand back to the material cylinder 6, the effect is better, and the conveying mechanism is less likely to be blocked or damaged.

[0031] Specifically, the side of the spiral blade 37 is tangent to the inner wall of the conveying cylinder 32, and the end of the conveying cylinder 32 away from the motor 34 extends into the material cylinder 6.

[0032] By adopting the above technical solution, the side of the spiral blade 37 is more closely attached to the inner wall of the conveying cylinder 32, and the end of the conveying cylinder 32 away from the motor 34 extends into the material cylinder 6 to transport the sand back to the material cylinder 6.

[0033] In this embodiment, by setting up the sand return component 3, the used sand particles pass through the placement plate 4 and fall into the conveying cylinder 32 through the sand outlet pipe 31 and the sand inlet 35. Turning on the motor 34 can drive the rotating rod 36 to rotate. The rotation of the rotating rod 36 drives the spiral blade 37 to rotate, which can transport the sand particles that fall into the conveying cylinder 32, thereby transporting the sand particles to the material cylinder 6. By setting up the sand return component 3 to transport the used sand particles back to the material cylinder 6, the effect is better, and the conveying mechanism is less likely to be blocked or damaged.

[0034] In this utility model, the motor-26 is a previously disclosed technology, and the selected model is Z60-55ZY.

[0035] In this utility model, the second motor 34 is a previously disclosed technology, and the selected model is 5IK120GN-CF.

[0036] The structure and working principle of the box body 1, placement plate 4, box door 5, material cylinder 6, conveying pump 7, pipe 8, solenoid valve 9 and support leg 10 in this utility model have been disclosed in a sand and dust test chamber sand and dust feeding device disclosed in Chinese patent application No. 2022206090105. Its working principle is to place the part to be tested on the placement plate 4 of the box body 1, close the box door 5, and the conveying pump 7 conveys the sand particles in the material cylinder 6 to the box body 1 through the pipe 8, thereby simulating the use state of the part in a sandy environment. The amount of sand discharged can be controlled by the solenoid valve 9.

[0037] The working principle and usage process of this utility model: When using the automatic feeding sand and dust test chamber, install the device in a suitable position, place the part to be tested on the placement plate 4 of the chamber 1, close the chamber door 5, and the conveying pump 7 transports sand particles from the material cylinder 6 to the chamber 1 through the pipe 8, thereby simulating the usage state of the part in a sandy environment. The amount of sand discharged can be controlled by the solenoid valve 9. By setting the sand spraying component 2, according to the position of the part to be tested placed on the placement plate 4, the motor 26 is turned on to drive the worm gear 27 to rotate. The rotation of the worm gear 27 drives the rotating shaft 23 to rotate through the turbine 25. The rotation of the rotating shaft 23 drives the sand spraying pipe 22 to rotate in the chamber 1. After the angle of the sand spraying nozzle on the sand spraying pipe 22 corresponds to the position of the part, the motor 26 is turned off. The pipe 8 transports sand particles to the sand spraying pipe 22 through the hose 24 and sprays them out through the sand spraying nozzle. By setting the sand spraying component 2, the sand spraying can be adjusted according to the position of the part. The sand angle is adjusted to improve the sandblasting effect and thus improve the test accuracy. By setting the limiting component 28, the rotating shaft 23 rotates to one side of the rotating plate 281 on the rotating shaft 23. One end of the fixed rod 282 slides the slider 283 at the other end in the arc-shaped slide groove 284. The limiting component 28 can limit the rotation of the sandblasting pipe 22, preventing the sandblasting pipe 22 from rotating too much and causing the hose 24 to become entangled or damaged. By setting the sand return component 3, the used sand particles pass through the placement plate 4 and fall into the conveying cylinder 32 through the sand outlet pipe 31 and the sand inlet 35. Turning on the motor 34 can drive the rotating rod 36 to rotate. The rotation of the rotating rod 36 drives the spiral blade 37 to rotate, which can transport the sand particles that fall into the conveying cylinder 32 to the material cylinder 6. By setting the sand return component 3, the used sand particles are transported back to the material cylinder 6, which is more effective and the conveying mechanism is less likely to be blocked or damaged.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding sand and dust test chamber, comprising a chamber body (1), wherein support legs (10) are fixed on both sides of the lower end of the chamber body (1), a placement plate (4) is installed inside the chamber body (1), a door (5) is hinged to the front end of the chamber body (1) at a position corresponding to the placement plate (4), a material cylinder (6) is provided on one side of the chamber body (1), a conveying pump (7) is installed on the upper end of the material cylinder (6), a pipe (8) is provided between the conveying pump (7) and the chamber body (1), and a solenoid valve (9) is provided on the pipe (8), characterized in that: A sand return assembly (3) is provided between the lower end of the box (1) and the material cylinder (6), and a sandblasting assembly (2) is provided at the end of the pipe (8) away from the conveying pump (7).

2. The automatic feeding sand and dust test chamber according to claim 1, characterized in that: The sandblasting assembly (2) includes a fixed plate (21), a sandblasting pipe (22), a rotating shaft (23), a flexible hose (24), a turbine (25), a motor (26), a worm gear (27), and a limiting assembly (28). The pipe (8) is provided with a flexible hose (24) at one end away from the delivery pump (7), and a sandblasting pipe (22) is installed at the other end of the flexible hose (24). A number of sandblasting nozzles are provided at one end of the sandblasting pipe (22). The sandblasting pipe (22) is connected to the housing (1) through a rotating shaft (23). A turbine (25) is fixed at one end of the rear rotating shaft (23). Two fixed plates (21) are fixed at the rear end of the housing (1) at the position corresponding to the turbine (25). A motor (26) is installed at one end of one fixed plate (21), and a worm gear (27) is provided at the output end of the motor (26). A limiting assembly (28) is fixed on one rotating shaft (23).

3. The automatic feeding sand and dust test chamber according to claim 2, characterized in that: The limiting component (28) includes a rotating plate (281), a fixing rod (282), a slider (283), and an arc-shaped groove (284). The rotating plate (281) is fixed on one side of the rotating shaft (23). The fixing rod (282) is fixed at one end of the rotating plate (281) near the box (1). The slider (283) is fixed at the other end of the fixing rod (282). An arc-shaped groove (284) corresponding to the slider (283) is opened at the rear end of the box (1).

4. The automatic feeding sand and dust test chamber according to claim 3, characterized in that: A bearing rotating seat is provided between the rotating shaft (23) and the housing (1), the side of the slider (283) is in close contact with the inner wall of the arc-shaped groove (284), and the rotating plate (281) is welded to the rotating shaft (23) by pressure welding.

5. The automatic feeding sand and dust test chamber according to claim 1, characterized in that: The sand return assembly (3) includes a sand outlet pipe (31), a conveying cylinder (32), a connecting column (33), a second motor (34), a sand inlet (35), a rotating rod (36), and a spiral blade (37). The lower end of the housing (1) is fixed with a sand outlet pipe (31), and the lower end of the sand outlet pipe (31) is fixed with a conveying cylinder (32). The conveying cylinder (32) is connected to the support leg (10) through a connecting column (33). The upper end of the conveying cylinder (32) is provided with a sand inlet (35) corresponding to the sand outlet pipe (31). One end of the conveying cylinder (32) is equipped with a second motor (34), and the output end of the second motor (34) is provided with a rotating rod (36). A spiral blade (37) is fixed on the rotating rod (36).

6. The automatic feeding sand and dust test chamber according to claim 5, characterized in that: The side of the spiral blade (37) is tangent to the inner wall of the conveying cylinder (32), and the end of the conveying cylinder (32) away from the motor (34) extends into the material cylinder (6).

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