A kind of spray test device
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of spray test device of spray test device, particularly a kind of casing insulation.
Background technology
For can seals such as examination shell of electric and electronic product or overcover guarantee equipment and element good working performance behind water test or at duration of test, by standard GB the regulation of T 2423.38-2005, adopt swing pipe spray test device to test, existing this device is: swing pipe is connected with water pipe system, install water jet on the swing pipe, swing pipe is connected with pendulous device, the swing of control swing pipe.During test, water pipe system supplies water to swing pipe, by pendulous device and nozzle test specimen is swung the water spray spray.The shortcoming of this device is that swing pipe is fixed on the support, is subjected to the restriction of swing pipe centre-height, and the test specimen that is placed on the sample stage can not surpass certain altitude, and this test unit only is fit to the low height sample.
In order to solve the problem of above-mentioned existence, once the someone had proposed a kind of swing pipe spray test device [China Patent No.: ZL 200320120298.7; Granted publication number: CN2660516Y], the purpose of this utility model is to design the Height Adjustable swing pipe spray test device of a kind of swing pipe, it is suitable for the test specimen of various height is carried out spray test, this utility model comprises the swing pipe that is fixed in bearing support, the water jet that communicates with it is installed on swing pipe, swing pipe is connected with supply channel, swing pipe one end is connected with pendulous device, bearing support is fixedly connected supporting transverse arm respectively, swing pipe power motor and speed reduction unit thereof, swing pipe one end is connected with an end of speed reduction unit shaft by sealing adaptor, the other end of speed reduction unit shaft is tightly connected by bearing and water supply connector, water supply connector is connected with water inlet pipe, the power motor of swing pipe is connected with electric control gear, and the other end of swing pipe is connected by the termination of bearing with the supporting transverse arm.Swing pipe below device sample supporting station; Between bearing support and the vertical rail bracket roller is installed on bearing support, roller is connected with vertically track is chimeric, between bearing support and the vertical rail bracket locking device is installed; Lifting power motor and speed reduction unit thereof are installed on the vertical rail bracket, between the hawser rolling wheel and the said supporting transverse arm that are installed on the speed reduction unit shaft by pulley installation hawser.But this swing pipe spray test device exists shortcoming:
1, lack insulation system because this swing pipe spray test device exists, when spraying charged testing sample, the accident that easy generation is got an electric shock is brought potential safety hazard to test;
2, this swing pipe spray test device lifting structure is comparatively complicated, and manufacturing cost is higher.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, and it is safer to have proposed a kind of use, the comparatively simple spray test device of structure.
The purpose of this utility model can realize by following technical proposal: a kind of spray test device, comprise support frame, it is characterized in that, the described support frame outside is fixed with the housing that adopts insulating material to make, and is fixed with the fixed mechanism that is used for fixing testing sample on the described support frame; Described support frame is provided with the swing pipe with several nozzles and can makes swing pipe around the driving mechanism that is fixed on the testing sample circulation swing on the fixed mechanism.
At the trial, described testing sample is fixed on the described fixed mechanism, connect the pipeline in the swing pipe, make in the nozzle of spray liquid from the swing pipe and spray, and the unlatching driving mechanism makes swing pipe around testing sample circulation swing, play testing sample is carried out multi-faceted spray, play the effect of test testing sample.The outside of described support frame is fixed with the housing that insulating material is made, described insulating material can be plastics, described housing will spray the inside that liquid is blocked in frame, when testing charged testing sample, can play the effect that prevents that the staff from getting an electric shock.
In above-mentioned spray test device, described swing pipe is circular arc, the two ends of described swing pipe all link to each other with support frame and the end of swing pipe and support frame between be provided with bearing.Described swing pipe is circular arc, and the water outlet direction sensing of the nozzle on the swing pipe is fixed on the testing sample of described fixed mechanism, and the described bearing that is located on the swing pipe can reduce the pivoting friction of swing pipe and support frame.
In above-mentioned spray test device, described fixed mechanism comprises the support that is connected on the described support frame and is fixed on the worktable that is used for fixing testing sample on the support.During spray test, testing sample is fixed on the worktable, when spray test, prevents that workpiece for measurement from dropping from worktable.
In above-mentioned spray test device, described fixed mechanism comprises support and the motor that is connected on the support frame, described support top is provided with the worktable that is used for fixing testing sample, is equipped with a rotating shaft on the described support, and the lower end of rotating shaft and the rotating shaft of motor link; The upper end of rotating shaft is connected mutually with worktable.Described worktable is connected mutually with described rotating shaft, by motor-driven, drives the rotation of worktable, when spray test, can make the multi-faceted spray of workpiece.
In above-mentioned spray test device, the middle part of described rotating shaft is provided with brush, and the bottom of described rotating shaft is fixed with belt wheel, and described belt wheel passes through motor-driven.When testing sample need be switched on, described brush links to each other with the testing sample of required energising, when worktable rotates, described swing pipe can carry out multi-faceted spray to the testing sample that is installed on the described worktable, and the electric wire that described brush and described testing sample are linked to each other avoid with described support around.
In above-mentioned spray test device, described rotating shaft comprises lower rotary shaft and last rotating shaft, and described lower rotary shaft is axially fixed on the support; The above-mentioned machine shaft and the bottom of lower rotary shaft link; The upper end of described bottom of going up rotating shaft and lower rotary shaft is by being threaded; Above-mentioned worktable is connected in the upper end surface of rotating shaft.Described rotating shaft and the described lower rotary shaft gone up can be adjusted the relative position of rotating shaft and lower rotary shaft by being threaded, and plays the distance between adjustment worktable and the swing pipe, can carry out spray test to the testing sample of different size.
In above-mentioned spray test device, described driving mechanism adopts motor, and an end of described machine shaft and described swing pipe links.Described motor adopts servomotor, and servomotor has the angle that can make control motor speed degree and rotation, and has the advantage that can commutate.
In above-mentioned spray test device, described driving mechanism comprises gear that is installed in swing pipe one end and the cylinder that is fixedly mounted on the described support frame, and the piston rod of described cylinder is fixed with tooth bar, and described tooth bar is meshed with described gear.By being arranged on the tooth bar on the cylinder piston rod, when the piston rod of cylinder carries out rectilinear motion, drive tooth bar and do rectilinear motion, described rack drives and tooth bar meshed gears move in a circle, the stretching motion of cylinder makes described swing pipe do the reciprocal circular motion of round-robin, adopt the cylinder transmission, have cleanliness without any pollution, advantage with low cost.
In above-mentioned spray test device, the downside of described fixed mechanism is provided with catch basin and the water pump that is fixed on the support frame, and described catch basin is fixed on the support frame, and described water pump all is connected by pipe with catch basin and swing pipe.Described catch basin and described pipe form a water cycle, provide water cycle needed power by water pump.
In above-mentioned spray test device, have opening on the lateral wall of described housing, described opening part is provided with the baffle plate that can seal described opening, and described baffle plate is hinged on the housing.In use, product to be measured is installed on the described worktable by described opening, described opening part is provided with described baffle plate, described baffle plate one end is fixed on the opening upside, the other end is not for there being fixing free end, described baffle plate can stop from the water of swing pipe ejection to be run into outside the housing, and described baffle plate can be selected transparent insulation adhesive tape for use, can observe the test situation in the housing from the outside.
Compared with prior art, this spray test device makes the safety in utilization that has of this spray test device by the housing of insulating material is set, and avoids when spray test, and electric shock accidents takes place; By worktable simple in structure is set, make the mechanism of this spray test device simple, cost is lower.
Description of drawings
Fig. 1 is the perspective view of this spray test device embodiment one
Fig. 2 is the sectional structure synoptic diagram of this spray test device embodiment one
Fig. 3 is the sectional structure synoptic diagram of this spray test device embodiment two
Among the figure, 1, support frame; 2, housing; 21, baffle plate; 3, swing pipe; 4, bearing; 5, gear; 6, tooth bar; 7, cylinder; 8, support; 9, rotating shaft; 91, go up rotating shaft; 92, lower rotary shaft; 10, worktable; 11, catch basin; 12, brush; 13, belt wheel; 14, servomotor.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment one
As illustrated in fig. 1 and 2, a kind of spray test device, comprise support frame 1, support frame 1 outside is fixed with the housing 2 that adopts plastics to make, housing 2 a lateral surface on have opening, opening part is provided with baffle plate 21, baffle plate 21 1 ends are fixed on the opening upside, baffle plate 21 can be selected transparent insulation adhesive tape for use, can observe the test situation in the housing 2 from the outside.Support frame 1 is provided with the swing pipe 3 of the circular arc with several nozzles, the two ends of swing pipe 3 are respectively equipped with the bearing 4 that is fixed on the support bone frame, also be fixed with gear 5 on the swing pipe 3, be fixed with cylinder 7 on the support frame 1, be fixed with on the piston rod of cylinder 7 be connected in swing pipe 3 on the tooth bar 6 that is meshed of gear 5, it is reciprocating that the stretching motion of cylinder 7 can drive swing pipe 3.
Be fixed with support 8 on the support frame 1, support 8 is provided with rotating shaft 9, and rotating shaft 9 comprises rotating shaft 91 and lower rotary shaft 92, and lower rotary shaft 92 is axially fixed on the support; The bottom of machine shaft and lower rotary shaft 92 links; The upper end of the bottom of last rotating shaft 91 and lower rotary shaft 92 is by being threaded; Worktable 10 is connected in the upper end surface of rotating shaft 91.When regulating helicitic texture, can adjust the relative distance between worktable 10 and the swing pipe 3, can carry out spray test to the testing sample of different size.The middle part of rotating shaft 9 is provided with brush 12, and the bottom of rotating shaft 9 is fixed with motor-driven belt wheel 13, and motor-driven belt wheel 13 can drive the worktable 10 that is fixed in the rotating shaft 9 and rotate.When testing sample need be switched on, brush 12 links to each other with the testing sample of required energising, when worktable 10 rotation, swing pipe 3 can carry out multi-faceted spray to the testing sample that is installed on the worktable 10, and the electric wire that brush 12 and testing sample are linked to each other avoid with support 8 around.The lower end of support 8 is provided with catch basin 11, is connected with pipe on the catch basin 11, and an end of pipe is connected with an end of swing pipe 3, and catch basin 11 forms a water cycle with pipe, provides water cycle needed power by the water pump that is fixed on the support frame 1.
At the trial, testing sample is fixed on the worktable 10, connect the pipe that swing pipe 3 links to each other with catch basin 11, make in the nozzle of spray liquid from the swing pipe 3 and spray, and unlatching cylinder 7 makes swing pipe 3 around testing sample circulation swing, belt wheel 13 drives rotating shaft 9 and rotates, and plays the effect of testing sample being carried out multi-faceted spray.The outside of support frame 1 is fixed with the housing 2 that insulation is made, and will be blocked in the inside of frame from the water of swing pipe 3 ejections, when testing charged testing sample, can play the effect that prevents that the staff from getting an electric shock.
Embodiment two
Present embodiment is basic identical with structure and the principle of embodiment one, and different place is:
As shown in Figure 3, the driving mechanism that drives swing pipe 3 cycle rotations adopts motor, and an end of motor is connected mutually with an end of swing pipe 3, motor adopts servomotor 14, servomotor 14 has can make control motor speed degree, and the position of rotation is accurate, and the advantage that can commutate.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used support frame 1, housing 2, baffle plate 21, swing pipe 3, bearing 4, gear 5, tooth bar 6, cylinder 7, support 8, rotating shaft 9, gone up terms such as rotating shaft 91, lower rotary shaft 92, worktable 10, catch basin 11, brush 12, belt wheel 13, servomotor 14 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.