Disclosure of Invention
In order to overcome the defects of inaccurate measurement of the water content of the waste lubricating oil, poor filtering effect of the waste lubricating oil and complex operation in the prior art, the invention aims to solve the technical problem of providing the lubricating oil water content detection equipment which is accurate in measurement of the water content of the waste lubricating oil, good in filtering effect of the waste lubricating oil and simple in operation.
The invention is achieved by the following specific technical means:
a device for detecting the water content of lubricating oil comprises a rack, a liquid inlet pipe, a first connecting rod, a lifting mechanism, a feeding pipe, a filtering mechanism, a spray head, a third slide block, an L-shaped rod, a moving mechanism, a detection box, a liquid collecting box, a pressing sleeve, a blocking sleeve, an annular sponge sleeve, a conductive metal rod, an annular screen plate, a fourth connecting rod, a U-shaped rod, a fixed block, a first guide wheel and a second guide wheel; a liquid collection box is arranged on one side of the detection box, two third through holes are formed in the top of the detection box, an annular mesh plate is arranged at the bottom of each third through hole, an annular sponge sleeve is arranged at the top of each annular mesh plate, a blocking sleeve is arranged at the top of each annular sponge sleeve, a conductive metal rod penetrates through the blocking sleeve, the annular sponge sleeve and the annular mesh plate, and the conductive metal rod is connected with an electric wire; a feeding pipe is arranged on one side of the top of the detection box, which is close to the liquid collection box; a second through hole and a fourth through hole are formed in the side wall, far away from the liquid collecting box, of the detection box along the horizontal direction, and the second through hole is located above the fourth through hole; the top of the second through hole is hinged with a U-shaped rod, and one side of the U-shaped rod is positioned in the detection box; a second guide wheel is fixedly connected to the end part of the U-shaped rod in the detection box, a fixed block is fixedly connected to the other end of the U-shaped rod, and a first guide wheel is fixedly connected to the bottom of the fixed block; a fifth through hole is formed in the side wall, close to the liquid collecting box, of the detection box in the horizontal direction, and the fifth through hole and the fourth through hole are located on the same horizontal line; the filtering mechanism penetrates through the fifth through hole and the fourth through hole and extends into the detection box; a frame is arranged above the detection box, one side of the bottom of the frame is fixedly connected with a lifting mechanism, and the other side of the bottom of the frame is fixedly connected with a first connecting rod; one output end of the lifting mechanism is fixedly connected with the top of the conductive metal rod, the other output end of the lifting mechanism is fixedly connected with a pressing sleeve, the conductive metal rod penetrates through the pressing sleeve, and the pressing sleeve is positioned above the detection box; the bottom of the first connecting rod is fixedly connected with a moving mechanism, and the output end of the moving mechanism is fixedly connected with one input end of the filtering mechanism; one side of the moving mechanism, which is close to the filtering mechanism, is fixedly connected with an L-shaped rod, the end part of the L-shaped rod is fixedly connected with a third sliding block, and the third sliding block is in sliding connection with one input end of the filtering mechanism; a liquid inlet pipe is arranged on the frame between the first connecting rod and the lifting mechanism, a spray head is arranged on the liquid inlet pipe, and the spray head is positioned right above the liquid collecting box;
the lifting mechanism comprises a first slide rail, a first slide block, a first motor, a rack, a gear, a second connecting rod, a third connecting rod, a first U-shaped frame and a second U-shaped frame; the two first sliding rails are fixedly connected to one side of the bottom of the rack, and the rack is connected with the first sliding rails in a sliding mode through the first sliding blocks; a second connecting rod is fixedly connected to the bottom end of the rack far away from one side of the spray head, a first U-shaped frame is fixedly connected to the bottom end of the second connecting rod, two end parts of the first U-shaped frame are fixedly connected to the top of the conductive metal rod, and a first through hole is formed in one side, close to the spray head, of the top of the first U-shaped frame in the vertical direction; a third connecting rod is fixedly connected to the bottom end of the rack close to one side of the spray head, the third connecting rod penetrates through the first through hole to be fixedly connected with a second U-shaped frame, and two end parts of the second U-shaped frame are fixedly connected with the top of the pressing sleeve; a first motor is fixedly connected to the bottom of the rack between the two first sliding rails, a gear is fixedly connected to the output end of the first motor, and the gear is meshed with the two racks;
the filtering mechanism comprises a wedge-shaped block, a first frame body, a first bearing seat, a loop bar, a circular sleeve, a second frame body and a screen; the first frame body penetrates through the fifth through hole and the fourth through hole, a second frame body is hinged to the front wall and the rear wall in the first frame body, a screen is fixedly connected in the second frame body, and a second guide wheel is positioned above the screen; a wedge block is fixedly connected to one side of the first frame body, which is close to the fourth through hole, and the wedge block is matched with the first guide wheel; a circular sleeve is fixedly connected to one side, close to the fifth through hole, of the first frame body, an annular sliding groove is formed in the circular sleeve, and the third sliding block is matched with the annular sliding groove; a first bearing seat is fixedly connected to the side part of the first frame body in the circular sleeve, a loop bar extends into the circular sleeve and is pivoted with the first bearing seat, and the loop bar is fixedly connected with the output end of the moving mechanism;
the moving mechanism comprises a mounting plate, a second bearing seat, a third bearing seat, a second slide rail, a second slide block, a nut, a screw rod and a second motor; the bottom end of the first connecting rod is fixedly connected with an installation plate, and the L-shaped rod is fixedly connected with the side part of the installation plate; a second bearing seat, a second sliding rail, a third bearing seat and a second motor are fixedly connected to the bottom of the mounting plate in sequence, and the second bearing seat is close to the L-shaped rod; one end of the screw rod is pivoted with the second bearing seat, and the other end of the screw rod is pivoted with the third bearing seat and penetrates through the third bearing seat to be fixedly connected with the output end of the second motor; the nut is in threaded connection with the screw rod, and the bottom of the nut is fixedly connected with the loop bar; the second sliding block is connected with the second sliding rail in a sliding mode and is fixedly connected with the top of the nut.
Furthermore, lubricating oil moisture content check out test set still includes drain pipe and valve, and the drain pipe is installed to one side lower part that the detection case was kept away from to the collection liquid case, installs the valve on the drain pipe.
Furthermore, the frame is made of stainless steel.
Furthermore, the mesh number of the screen is 20 meshes.
Compared with the prior art, the invention has the following beneficial effects:
the invention achieves the effects of accurate determination of the water content of the waste lubricating oil, good filtering effect of the waste lubricating oil, simple operation and convenient collection of waste materials.
1. The residual waste lubricating oil on the conductive metal rod is wiped off, and then the conductivity of the waste lubricating oil is measured next time, so that the measurement is more accurate.
2. When the waste lubricating oil is filtered, the screen is swung back and forth, so that the waste lubricating oil can be uniformly spread on the screen, and the filtering effect is better.
3. The invention filters the waste lubricating oil when measuring the conductivity, thereby simplifying the operation.
4. According to the invention, the screen mesh is moved to the position below the spray head through the moving mechanism and then is washed, so that waste materials enter the liquid collecting tank, and the waste materials are convenient to collect.
Drawings
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is an enlarged view of A in FIG. 1 according to the present invention.
FIG. 3 is an enlarged view of B in FIG. 1 according to the present invention.
FIG. 4 is a schematic front view of the inspection box of the present invention.
Fig. 5 is a schematic front view of the lifting mechanism of the present invention.
Fig. 6 is a schematic front view of the filter mechanism of the present invention.
Fig. 7 is a schematic top view of the first frame of the present invention.
Fig. 8 is a schematic top view of the circular sleeve of the present invention.
Fig. 9 is a front view of the moving mechanism of the present invention.
The labels in the figures are: 1-a frame, 2-a liquid inlet pipe, 3-a first connecting rod, 4-a lifting mechanism, 41-a first sliding rail, 42-a first sliding block, 43-a first motor, 44-a rack, 45-a gear, 46-a second connecting rod, 47-a third connecting rod, 48-a first through hole, 49-a first U-shaped frame, 410-a second U-shaped frame, 5-a material inlet pipe, 6-a filtering mechanism, 61-a wedge block, 62-a first frame body, 63-a first bearing seat, 64-a sleeve rod, 65-a circular sleeve, 66-a second frame body, 67-a screen, 68-a circular chute, 7-a spray head, 8-a third sliding block, 9-an L-shaped rod, 10-a moving mechanism, 1001-a mounting plate and 1002-a second bearing seat, 1003-a third bearing seat, 1004-a second sliding rail, 1005-a second sliding block, 1006-a nut, 1007-a screw rod, 1008-a second motor, 11-a detection box, 12-a liquid collection box, 13-an electric wire, 14-a pressing sleeve, 15-a blocking sleeve, 16-an annular sponge sleeve, 17-a conductive metal rod, 18-an annular mesh plate, 19-a second through hole, 20-a fourth connecting rod, 21-a U-shaped rod, 22-a fixed block, 23-a first guide wheel, 24-a second guide wheel, 25-a third through hole, 26-a fourth through hole, 27-a fifth through hole, 28-a liquid outlet pipe and 29-a valve.
Detailed Description
The invention is further described below with reference to the figures and examples.
Examples
A device for detecting the water content of lubricating oil is shown in figures 1-9 and comprises a frame 1, a liquid inlet pipe 2, a first connecting rod 3, a lifting mechanism 4, a feeding pipe 5, a filtering mechanism 6, a spray head 7, a third slide block 8, an L-shaped rod 9, a moving mechanism 10, a detection box 11, a liquid collecting box 12, a pressing sleeve 14, a blocking sleeve 15, an annular sponge sleeve 16, a conductive metal rod 17, an annular net plate 18, a fourth connecting rod 20, a U-shaped rod 21, a fixed block 22, a first guide wheel 23 and a second guide wheel 24; a liquid collecting box 12 is arranged on one side of the detection box 11, two third through holes 25 are formed in the top of the detection box 11, an annular mesh plate 18 is arranged at the bottom in each third through hole 25, an annular sponge sleeve 16 is arranged on the top of each annular mesh plate 18, a blocking sleeve 15 is arranged on the top of each annular sponge sleeve 16, a conductive metal rod 17 penetrates through the blocking sleeve 15, the annular sponge sleeve 16 and the annular mesh plates 18, and the conductive metal rod 17 is connected with an electric wire 13; a feeding pipe 5 is arranged on one side of the top of the detection box 11 close to the liquid collecting box 12; a second through hole 19 and a fourth through hole 26 are formed in the side wall, away from the liquid collecting tank 12, of the detection tank 11 along the horizontal direction, and the second through hole 19 is located above the fourth through hole 26; the top in the second through hole 19 is hinged with a U-shaped rod 21, and one side of the U-shaped rod 21 is positioned in the detection box 11; a second guide wheel 24 is fixedly connected to the end portion of the U-shaped rod 21 positioned in the detection box 11, a fixed block 22 is fixedly connected to the other end of the U-shaped rod 21, and a first guide wheel 23 is fixedly connected to the bottom of the fixed block 22; a fifth through hole 27 is formed in the side wall, close to the liquid collecting tank 12, of the detection tank 11 along the horizontal direction, and the fifth through hole 27 and the fourth through hole 26 are located on the same horizontal line; the filtering mechanism 6 passes through the fifth through hole 27 and the fourth through hole 26 and extends into the detection box 11; a rack 1 is arranged above the detection box 11, one side of the bottom of the rack 1 is fixedly connected with a lifting mechanism 4, and the other side of the bottom of the rack 1 is fixedly connected with a first connecting rod 3; one output end of the lifting mechanism 4 is fixedly connected with the top of the conductive metal rod 17, the other output end of the lifting mechanism 4 is fixedly connected with the pressing sleeve 14, the conductive metal rod 17 penetrates through the pressing sleeve 14, and the pressing sleeve 14 is positioned above the detection box 11; the bottom of the first connecting rod 3 is fixedly connected with a moving mechanism 10, and the output end of the moving mechanism 10 is fixedly connected with one input end of the filtering mechanism 6; an L-shaped rod 9 is fixedly connected to one side, close to the filtering mechanism 6, of the moving mechanism 10, a third sliding block 8 is fixedly connected to the end portion of the L-shaped rod 9, and the third sliding block 8 is in sliding connection with one input end of the filtering mechanism 6; install feed liquor pipe 2 on the frame 1 between head rod 3 and elevating system 4, install shower nozzle 7 on the feed liquor pipe 2, shower nozzle 7 is located the header tank 12 directly over.
The lifting mechanism 4 comprises a first slide rail 41, a first slide block 42, a first motor 43, a rack 44, a gear 45, a second connecting rod 46, a third connecting rod 47, a first U-shaped frame 49 and a second U-shaped frame 410; the two first sliding rails 41 are fixedly connected to one side of the bottom of the rack 1, and the rack 44 is slidably connected with the first sliding rails 41 through the first sliding blocks 42; a second connecting rod 46 is fixedly connected to the bottom end of the rack 44 on the side far away from the spray head 7, a first U-shaped frame 49 is fixedly connected to the bottom end of the second connecting rod 46, two end portions of the first U-shaped frame 49 are fixedly connected to the top of the conductive metal rod 17, and a first through hole 48 is formed in the vertical direction on the side, close to the spray head 7, of the top of the first U-shaped frame 49; a third connecting rod 47 is fixedly connected to the bottom end of the rack 44 close to one side of the spray head 7, the third connecting rod 47 penetrates through the first through hole 48 to be fixedly connected with a second U-shaped frame 410, and two end parts of the second U-shaped frame 410 are fixedly connected with the top of the pressing sleeve 14; a first motor 43 is fixedly connected to the bottom of the frame 1 between the two first slide rails 41, a gear 45 is fixedly connected to the output end of the first motor 43, and the gear 45 is engaged with the two racks 44.
The filtering mechanism 6 comprises a wedge block 61, a first frame 62, a first bearing seat 63, a loop bar 64, a circular sleeve 65, a second frame 66 and a screen 67; the first frame body 62 penetrates through the fifth through hole 27 and the fourth through hole 26, the front wall and the rear wall in the first frame body 62 are hinged with a second frame body 66, a screen 67 is fixedly connected in the second frame body 66, and the second guide wheel 24 is positioned above the screen 67; a wedge block 61 is fixedly connected to one side of the first frame 62 close to the fourth through hole 26, and the wedge block 61 is matched with the first guide wheel 23; a circular sleeve 65 is fixedly connected to one side of the first frame 62 close to the fifth through hole 27, an annular sliding groove 68 is formed in the circular sleeve 65, and the third sliding block 8 is matched with the annular sliding groove 68; a first bearing seat 63 is fixedly connected to a side portion of the first frame 62 in the circular sleeve 65, a sleeve rod 64 extends into the circular sleeve 65 and is pivotally connected to the first bearing seat 63, and the sleeve rod 64 is fixedly connected to an output end of the moving mechanism 10.
The moving mechanism 10 comprises a mounting plate 1001, a second bearing block 1002, a third bearing block 1003, a second slide rail 1004, a second slide block 1005, a nut 1006, a screw rod 1007 and a second motor 1008; the bottom end of the first connecting rod 3 is fixedly connected with an installation plate 1001, and the L-shaped rod 9 is fixedly connected with the side part of the installation plate 1001; a second bearing seat 1002, a second slide rail 1004, a third bearing seat 1003 and a second motor 1008 are fixedly connected to the bottom of the mounting plate 1001 in sequence, and the second bearing seat 1002 is close to the L-shaped rod 9; one end of the screw rod 1007 is pivoted with the second bearing seat 1002, and the other end of the screw rod 1007 is pivoted with the third bearing seat 1003, penetrates through the third bearing seat 1003 and is fixedly connected with the output end of the second motor 1008; the nut 1006 is in threaded connection with the screw rod 1007, and the bottom of the nut 1006 is fixedly connected with the sleeve rod 64; the second slider 1005 is slidably connected to the second slide rail 1004, and the second slider 1005 is fixedly connected to the top of the nut 1006.
A lubricating oil moisture content check out test set is still including drain pipe 28 and valve 29, and drain pipe 28 is installed to one side lower part that collection liquid box 12 kept away from detection case 11, installs valve 29 on the drain pipe 28.
The frame 1 is made of stainless steel.
The mesh number of the screen 67 is 20 mesh.
When the water content of the used lubricating oil needs to be measured, the conductivity of the used lubricating oil needs to be measured firstly, at the moment, the used lubricating oil is added into the detection box 11 through the feeding pipe 5, and impurities in the used lubricating oil fall onto the output end of the filtering mechanism 6. Meanwhile, the moving mechanism 10 is started, and under the action of the first guide wheel 23 and the second guide wheel 24, the filtering mechanism 6 works, so that impurities in the waste lubricating oil are filtered to the output end of the filtering mechanism 6, and meanwhile, the waste lubricating oil can be uniformly spread to the output end of the filtering mechanism 6, so that the filtering rate effect is better.
When the waste lubricating oil is not added any more, the moving mechanism 10 is started, so that the filtering mechanism 6 is pulled out from the fourth through hole 26 and the fifth through hole 27, and the output end of the filtering mechanism 6 is positioned right below the spray head 7. At this time, the third sliding block 8 is slidably connected to the input end of the filtering mechanism 6, so as to rotate the input end of the filtering mechanism 6. Meanwhile, flushing liquid is added into the liquid inlet pipe 2, so that the flushing liquid can be sprayed to the output end of the filtering mechanism 6 through the spray head 7, waste lubricating oil impurities on the flushing liquid can be flushed down, and then the flushing liquid drops into the liquid collecting tank 12, so that the impurities on the output end of the filtering mechanism 6 are flushed clean and can be used next time.
At the same time, the lifting mechanism 4 is actuated to move the conductive metal rod 17 downward to be immersed in the filtered waste lubricating oil in the detection box 11, and to move the pressure sleeve 14 upward. At this time, when the conductive metal rods 17 are energized, the two conductive metal rods 17 form a loop, so that the conductivity of the filtered waste lubricating oil in the detection box 11 can be measured.
After the conductivity of the waste lubricating oil is measured, the conductive metal rod 17 is powered off, then the lifting mechanism 4 is started, so that the conductive metal rod 17 moves upwards to reset, at the moment, the waste lubricating oil on the conductive metal rod 17 can be wiped off by the annular sponge sleeve 16, and the conductivity of the waste lubricating oil detected by the conductive metal rod 17 is more accurate. Meanwhile, the pressing sleeve 14 moves downwards, and after the pressing sleeve 14 contacts the blocking sleeve 15, the waste lubricating oil on the annular sponge sleeve 16 is extruded out, so that the waste lubricating oil falls into the detection box 11 through the annular screen plate 18.
When the conductivity of the filtered used lubricating oil in the detection box 11 is measured, the water content of the used lubricating oil is obtained according to the formula S =2pS 1/3-p.
As shown in fig. 5, the lifting mechanism 4 includes a first slide rail 41, a first slide block 42, a first motor 43, a rack 44, a gear 45, a second connecting rod 46, a third connecting rod 47, a first U-shaped frame 49 and a second U-shaped frame 410; the two first sliding rails 41 are fixedly connected to one side of the bottom of the rack 1, and the rack 44 is slidably connected with the first sliding rails 41 through the first sliding blocks 42; a second connecting rod 46 is fixedly connected to the bottom end of the rack 44 on the side far away from the spray head 7, a first U-shaped frame 49 is fixedly connected to the bottom end of the second connecting rod 46, two end portions of the first U-shaped frame 49 are fixedly connected to the top of the conductive metal rod 17, and a first through hole 48 is formed in the vertical direction on the side, close to the spray head 7, of the top of the first U-shaped frame 49; a third connecting rod 47 is fixedly connected to the bottom end of the rack 44 close to one side of the spray head 7, the third connecting rod 47 penetrates through the first through hole 48 to be fixedly connected with a second U-shaped frame 410, and two end parts of the second U-shaped frame 410 are fixedly connected with the top of the pressing sleeve 14; a first motor 43 is fixedly connected to the bottom of the frame 1 between the two first slide rails 41, a gear 45 is fixedly connected to the output end of the first motor 43, and the gear 45 is engaged with the two racks 44.
When the conductive metal rod 17 needs to be immersed into the filtered waste lubricating oil in the detection box 11, the first motor 43 is started to drive the gear 45 to rotate anticlockwise, so that the first U-shaped frame 49 at the bottom of the rack 44 is driven to move downwards, the conductive metal rod 17 is immersed into the filtered waste lubricating oil in the detection box 11, and then the conductive metal rod is electrified, so that the conductivity of the waste lubricating oil can be measured. Meanwhile, the first motor 43 drives the gear 45 to rotate counterclockwise, and also drives the other rack 44 and the second U-shaped frame 410 at the bottom thereof to move upward, so as to drive the pressing sleeve 14 to move upward. After the conductivity of the waste lubricating oil is measured, the first motor 43 is started to drive the gear 45 to rotate clockwise, so that the rack 44 and the first U-shaped frame 49 at the bottom of the rack are driven to move upwards, the conductive metal rod 17 is driven to move upwards, the annular sponge sleeve 16 can wipe off the waste lubricating oil on the conductive metal rod 17, and the conductivity of the waste lubricating oil detected by the conductive metal rod 17 next time is more accurate. Meanwhile, the first motor 43 drives the gear 45 to rotate clockwise to drive the other rack 44 and the second U-shaped frame 410 at the bottom thereof to move downwards, so as to drive the pressing sleeve 14 to move downwards, and after the pressing sleeve 14 contacts with the blocking sleeve 15, the waste lubricating oil on the annular sponge sleeve 16 is extruded out, so that the waste lubricating oil falls into the detection box 11 through the annular screen plate 18.
As shown in fig. 6, 7 and 8, the filter mechanism 6 includes a wedge block 61, a first frame 62, a first bearing seat 63, a sleeve rod 64, a circular sleeve 65, a second frame 66 and a screen 67; the first frame body 62 penetrates through the fifth through hole 27 and the fourth through hole 26, the front wall and the rear wall in the first frame body 62 are hinged with a second frame body 66, a screen 67 is fixedly connected in the second frame body 66, and the second guide wheel 24 is positioned above the screen 67; a wedge block 61 is fixedly connected to one side of the first frame 62 close to the fourth through hole 26, and the wedge block 61 is matched with the first guide wheel 23; a circular sleeve 65 is fixedly connected to one side of the first frame 62 close to the fifth through hole 27, an annular sliding groove 68 is formed in the circular sleeve 65, and the third sliding block 8 is matched with the annular sliding groove 68; a first bearing seat 63 is fixedly connected to a side portion of the first frame 62 in the circular sleeve 65, a sleeve rod 64 extends into the circular sleeve 65 and is pivotally connected to the first bearing seat 63, and the sleeve rod 64 is fixedly connected to an output end of the moving mechanism 10.
When the used lubricant is supplied into the inspection chamber 11 through the feed pipe 5, the foreign matters in the used lubricant fall onto the mesh 67. At the same time, the moving mechanism 10 is started, so that the loop bar 64 is driven to move left and right, and the first frame body 62 and the wedge block 61 on the first frame body are driven to move left and right. At this moment, when wedge 61 and first guide pulley 23 contact, will make U-shaped pole 21 swing back and forth to drive second guide pulley 24 and reciprocate, thereby will drive screen cloth 67 swing back and forth, thereby just can make even the spreading of useless lubricating oil spill screen cloth 67 on, thereby be convenient for filter down its interior impurity, thereby make its filter effect better.
When the filtering of the waste lubricating oil is completed, the moving mechanism 10 is started to pull the screen 67 out of the detection box 11, and further pull the first frame 62 out of the fourth through hole 26 and the fifth through hole 27, so that the screen 67 is located right below the spray head 7. Meanwhile, the flushing liquid is added into the liquid inlet pipe 2, so that the flushing liquid can be sprayed onto the screen 67 through the spray head 7, the waste lubricating oil impurities on the flushing liquid can be flushed down, and then the flushing liquid drops into the liquid collecting tank 12, so that the impurities on the screen 67 can be flushed clean and used for the next time.
As shown in fig. 9, the moving mechanism 10 includes a mounting plate 1001, a second bearing housing 1002, a third bearing housing 1003, a second slide rail 1004, a second slider 1005, a nut 1006, a screw 1007, and a second motor 1008; the bottom end of the first connecting rod 3 is fixedly connected with an installation plate 1001, and the L-shaped rod 9 is fixedly connected with the side part of the installation plate 1001; a second bearing seat 1002, a second slide rail 1004, a third bearing seat 1003 and a second motor 1008 are fixedly connected to the bottom of the mounting plate 1001 in sequence, and the second bearing seat 1002 is close to the L-shaped rod 9; one end of the screw rod 1007 is pivoted with the second bearing seat 1002, and the other end of the screw rod 1007 is pivoted with the third bearing seat 1003, penetrates through the third bearing seat 1003 and is fixedly connected with the output end of the second motor 1008; the nut 1006 is in threaded connection with the screw rod 1007, and the bottom of the nut 1006 is fixedly connected with the sleeve rod 64; the second slider 1005 is slidably connected to the second slide rail 1004, and the second slider 1005 is fixedly connected to the top of the nut 1006.
When the screen 67 needs to be moved, the second motor 1008 is started to drive the screw rod 1007 to rotate, and at this time, under the action of the second slider 1005, the nut 1006 moves on the screw rod 1007, so as to drive the loop bar 64 to move left and right, and further drive the first frame 62 and the screen 67 thereon to move.
As shown in fig. 1, the device for detecting the water content of lubricating oil further comprises a liquid outlet pipe 28 and a valve 29, wherein the liquid outlet pipe 28 is installed at the lower part of one side of the liquid collecting box 12, which is far away from the detection box 11, and the valve 29 is installed on the liquid outlet pipe 28; when it is desired to remove waste liquid from the tank 12, valve 29 is opened so that waste liquid from the tank 12 flows out through outlet pipe 28, thereby facilitating removal of waste liquid from the tank 12.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.