CN104483070A - Valve block component for detecting leakage of oil duct hole of tractor gearbox casing and use method of valve block component - Google Patents
Valve block component for detecting leakage of oil duct hole of tractor gearbox casing and use method of valve block component Download PDFInfo
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- CN104483070A CN104483070A CN201410763124.5A CN201410763124A CN104483070A CN 104483070 A CN104483070 A CN 104483070A CN 201410763124 A CN201410763124 A CN 201410763124A CN 104483070 A CN104483070 A CN 104483070A
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Abstract
The invention discloses a valve block component for detecting leakage of an oil duct hole of a tractor gearbox casing and a use method of the valve block component, and belongs to the field of machine manufacturing. The valve block component comprises a combined valve block component, valve block control lines, junction boxes and main control lines, wherein one end of the combined valve block component is connected with a gearbox casing through a detection gas pipeline; the other end of the combined valve block component is connected with one end of each junction box through one valve block control line; the other end of each junction box is connected with a leakage detector through the main control lines. As a plurality of reversing valves are combined together, and each reversing valve is adopted to detect one row of holes, the detection on leakage of all oil duct holes in the tractor gearbox casing can be completed through once assembling and disassembling; different tractor gearbox casings can be detected, the valve block component is flexible to use and easy to assemble and disassemble and can be connected with different plugging components and leakage detectors.
Description
Technical field
The invention belongs to mechanical manufacturing field, particularly relate to a kind of for tractor gearbox body oil hole Leak Detection valve block assembly and using method.
Background technology
Wheel box is one of critical component of tractor, with back axle, pto, four-wheel drive, detent and miscellaneous part composition power train, its function is the large torque of the slow-speed of revolution that the high rotating speed low torque that diesel motor exports is converted to drive axle and power output shaft.Gear box of tractor develops into the dynamic power shift gear box of today from the manual shift mechanical gear box at initial stage, synchronizing sleeve manual transmission, and the shift quality of wheel box improves constantly, and constantly strengthens the adaptability of agricultural production operating mode complicated and changeable.Dynamic power shift gear box primarily of machine driven system, hydraulic control system and electronic control system three part composition, tractor dynamic power shift gear box is the mechanism utilizing fluid coupling or detent to realize tractor to shift gears under loads, dynamic power shift gear box body inside comprises multichannel oil hole structure, when hydraulic work system, the leakage rate of every road oil hole all can not exceed the leakage standard of drawing technical requirement, and oil hole leakage rate each other can not exceed the leakage standard of drawing technical requirement.
The pressure effect of power shifting tractor use hydraulic oil is moved clutch coupling and is carried out gear shift operation, gearbox body oil hole is the passage of gearshift hydraulic oil, it is the guarantee that tractor realizes power shifting, in order to ensure that hydraulic system can normally work, need to carry out Leak Detection before wheel box assembling, require the leakage rate of every road oil hole, oil hole leakage rate each other in allowed limits.
Known by Fig. 1, leak detecting device comprises detection air pipe 2, reversal valve 3, loading line 4, main control line 5, leakage tester 6 and air inlet pipeline 7.The principle of Leak Detection is: leakage tester 6 controls reversal valve 3 switch by main control line 5 is inflated to tested gearbox body 1 cavity, during inflated condition, the cavity of gearbox body 1 is by loading line 4 and leakage tester 6 UNICOM, reveal if existed, pressure diminishes, pressure transducer detected pressures change in leakage tester 6, judges that tested gearbox body 1 cavity reveals situation.
The structure of current leak detecting device is designs corresponding with the architectural feature of the specific component that will detect, belong to the special purpose device for a certain part amount of leakage to be measured of detection produced in enormous quantities, the corresponding a kind of product of every platform leak detecting device, the valve block assembly used also is the automatic plugging assembly being only applicable to a kind of product, and in Tractor Products, application exists following problem:
1, not general, cost is high: existing leak test valve block assembly according to detected each product structure design, handling inconvenience, can not be general between different product; And tractor gearbox body volume is large, complex structure, wide in variety, production lot is less, if each product equal configure dedicated valve block assembly, cost is too high;
2, the reversal valve of existing valve block assembly and operation circuit are independently arranged, and install, debugging inconvenience.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of combination valve block assembly that can be used in a leakage detector control and test many group oil hole leakage situation while being connected, multiple reversal valve is combined by the present invention, each reversal valve controls the detection in a hole, road, and once handling can complete the Leak Detection of whole oil hole on tractor gearbox body; The tractor gearbox body of different cultivars can be detected, use quick detachable flexibly, can connect from different blocking components and leakage detector.
In order to realize goal of the invention of the present invention, the present invention by the following technical solutions:
A kind of tractor gearbox body oil hole Leak Detection valve block assembly, comprise combination valve block component, valve block control line, junction box and main control line, one end of described combination valve block component is connected with gearbox body by detecting air pipe, the other end of described combination valve block component is connected with one end of junction box by valve block control line, and the other end of described junction box is connected with leakage tester by main control line.
Described tractor gearbox body oil hole Leak Detection valve block assembly, described combination valve block component is set to rectangular structure, and described combination valve block component comprises spreader plate, several reversal valves, breather plug, plug, reversal valve mounting screw, body mounting screw, detect aperture inlet suction port, inlet suction port; Reversal valve is fixedly installed on the front of spreader plate, junction box is fixedly installed on the right side of spreader plate, detect aperture inlet suction port is fixedly installed on the left of spreader plate, inlet suction port is connected to left part on the upside of spreader plate, plug is connected to spreader plate lower left side, breather plug is arranged at the upper and lower both sides of right part of spreader plate, one end of main control line is connected with on the downside of junction box, the other end of main control line is connected with leakage tester by control line plug, one end of valve block control line is connected with on the upside of junction box, and the other end of valve block control line is connected with reversal valve.
Described tractor gearbox body oil hole Leak Detection valve block assembly, the other end of described valve block control line is connected with the reversal valve valve block control line interface of reversal valve.
Described tractor gearbox body oil hole Leak Detection valve block assembly, the corner of described spreader plate is respectively arranged with the gib screw connecting hole be connected with external stability, spreader plate inside is provided with air inlet pipeline, gas exhaust piping, air inlet pipeline and gas exhaust piping are through the length direction of whole spreader plate, and air inlet pipeline is parallel with gas exhaust piping, air inlet pipeline upper end is that air inlet connects aperture, described air inlet connects one end grafting of aperture and inlet suction port, the other end of inlet suction port is by connecting loading line and leakage tester UNICOM, the lower end of described air inlet pipeline is air inlet end aperture, one end grafting of described air inlet end aperture and plug, the two ends of gas exhaust piping are respectively vent ports, and described vent ports is used for arranging breather plug, described air inlet connects aperture, air inlet end aperture and vent ports and is coniform hole, be provided with detect aperture air inlet connecting hole on the left of described spreader plate Width, the aperture of described detect aperture air inlet connecting hole is bellmouth, one end grafting of described detect aperture air inlet connecting hole and detect aperture inlet suction port, the other end of detect aperture inlet suction port is connected with detection air pipe, described spreader plate front is provided with reversal valve air admission hole connecting hole, reversal valve working hole connecting hole, reversal valve vent port connecting hole in the width direction, described reversal valve air admission hole connecting hole, reversal valve working hole connecting hole, reversal valve vent port connecting hole are arranged point-blank, wherein reversal valve air admission hole connecting hole communicates with air inlet pipeline is vertical, reversal valve working hole connecting hole communicates with detect aperture air inlet connecting hole is vertical, and reversal valve vent port connecting hole communicates with gas exhaust piping is vertical, described spreader plate front is provided with two row's reversal valve holding screw connecting holes along its length, and described reversal valve holding screw connecting hole does not communicate with any hole.
Described tractor gearbox body oil hole Leak Detection valve block assembly, described reversal valve comprises reversal valve valve block control line interface, reversal valve air admission hole, reversal valve working hole, reversal valve vent port, reversal valve holding screw, hand push button and spool; Reversal valve valve block control line interface connection valve block control line, reversal valve air admission hole, reversal valve working hole, reversal valve vent port is provided with bottom reversal valve, when inflating to detect aperture, reversal valve air admission hole communicates with reversal valve air admission hole connecting hole, reversal valve working hole communicates with reversal valve working hole connecting hole, and reversal valve vent port is cut off by spool; During detect aperture exhaust, reversal valve vent port communicates with reversal valve vent port connecting hole, and reversal valve working hole communicates with reversal valve working hole connecting hole, and reversal valve air admission hole is cut off by spool; Bottom reversal valve, diagonal position is provided with reversal valve holding screw, is connected, is fixedly connected on spreader plate by reversal valve with reversal valve set screw hole.
Described tractor gearbox body oil hole Leak Detection valve block assembly, be arranged on leak-testing instrument frame on by reversal valve set screw hole and reversal valve clamp screw pit by combination valve block component by reversal valve mounting screw, combination valve block component is arranged on leak-testing instrument frame by gib screw connecting hole by described body mounting screw.
Described tractor gearbox body oil hole Leak Detection valve block assembly, described reversal valve is set to two position, three-way electromagnetic change valve.
Described tractor gearbox body oil hole Leak Detection valve block assembly, described junction box is set to rectangular structure, comprise shell, internal wiring plate, external terminal board, outer binding post, interconnector and internal layer binding post, the enclosure of junction box is provided with internal wiring plate and external terminal board, the side that internal wiring plate is relative with main control line is provided with internal layer binding post, the side that external terminal board is relative with valve block control line is provided with outer binding post, the quantity of internal layer binding post is identical with outer binding post quantity, and is connected one to one by interconnector; Main control line enters junction box inside, and control line core separately, is connected with the internal layer binding post be fixed on internal wiring plate; External cabling post and each bar valve block control line connect one to one, and valve block control line stretches out from junction box upper end, and the quantity of valve block control line is consistent with the quantity of reversal valve.
Described tractor gearbox body oil hole Leak Detection valve block assembly, described main control line is set to two, one end of described main control line is connected on the internal layer binding post in junction box by control line core, the other end of main control line is fixedly installed control line plug, described control line plug is the RS232 serial communication interface of standard, is connected with control module in leakage detector.
The using method of described tractor gearbox body oil hole Leak Detection valve block assembly, concrete steps are as follows:
One) assemble combination valve block component, by the reversal valve air admission hole on each reversal valve, reversal valve working hole, reversal valve vent port and often group reversal valve air admission hole connecting hole, the reversal valve working hole connecting hole on spreader plate, reversal valve vent port connecting hole is corresponding arranges; On spreader plate, reversal valve is fixedly installed by reversal valve set screw hole and reversal valve clamp screw pit reversal valve mounting screw;
One end of detect aperture inlet suction port is screwed in detect aperture air inlet connecting hole; One end of inlet suction port is screwed in air inlet and connects aperture; One end of plug is screwed in air inlet end aperture, prevents air inlet pipeline from leaking gas; In vent ports, breather plug is set;
Two) assemble junction box, main control line enters junction box inside, and control line core separately, is connected with the internal layer binding post be fixed on internal wiring plate; External cabling post and each bar valve block control line connect one to one, and valve block control line stretches out from junction box upper end;
Three) combination valve block component and junction box is connected, by junction box attachment screw hole screw, junction box is fixedly installed on combination valve block component, one end of valve block control line is connected with on the upside of junction box, the other end of valve block control line is connected with the reversal valve valve block control line interface of reversal valve;
Four) be connected with leakage tester by valve block assembly, one end of main control line is connected with on the downside of junction box, and the other end of main control line is connected with leakage tester by control line plug; By one end of loading line and inlet suction port grafting, the other end of loading line and leakage tester UNICOM;
Five) valve block assembly being connected with gearbox body, connecting detect aperture inlet suction port and blocking component and gearbox body by detecting air pipe;
Six) shutoff is carried out to tested gearbox body;
Seven) press on leakage tester and start test button, detect;
Eight) whether qualified recording detection data, leak test instrument automatic discrimination;
Nine) carry out the Leak Detection of next gearbox body, repeat above-mentioned steps six) ~ eight).
Owing to adopting above-described technical scheme, the present invention can reach following beneficial effect:
1, tractor gearbox body oil hole Leak Detection valve block assembly of the present invention, multiple reversal valve is combined, each reversal valve controls the detection in a hole, road, and once handling can complete the Leak Detection of whole oil hole on tractor gearbox body, efficient and convenient;
2, tractor gearbox body oil hole Leak Detection valve block assembly of the present invention, can connect from different blocking components and leakage detector, detects the tractor gearbox body of different cultivars; When connecting with same blocking component and leakage detector, if the plugging structure of detected tractor gearbox body is identical, also the tractor gearbox body of different cultivars can be detected, highly versatile, effectively reduce the cost using valve block assembly, thus reduce the cost of leak detection;
3, tractor gearbox body oil hole Leak Detection valve block assembly of the present invention, reversal valve and operation circuit are arranged respectively to integrative-structure, adopt common pipeline and blocking component and the quick grafting of leakage detector, use quick detachable flexibly, can connect from different blocking components and leakage detector, Installation and Debugging are convenient.
Accompanying drawing explanation
Fig. 1 is tractor gearbox body oil hole Leak Detection principle schematic;
Fig. 2 is principle of work schematic diagram of the present invention;
Fig. 3 is perspective view of the present invention;
Fig. 4 is the structural representation of spreader plate;
Fig. 5 is the structural representation of reversal valve;
Fig. 6 is reversal valve working state schematic representation during inflation;
Fig. 7 is reversal valve working state schematic representation during exhaust;
Fig. 8 is the structural representation of distributor plate;
In figure: 1, gearbox body; 1a, oil hole aperture; 2, air pipe is detected; 3, reversal valve; 3a, reversal valve valve block control line interface; 3b, reversal valve air admission hole; 3c, reversal valve working hole; 3d, reversal valve vent port; 3e, reversal valve set screw hole; 3f, hand push button; 3g, spool; 4, loading line; 5, main control line; 5a, control line plug; 5b, control line joint; 6, leakage tester; 7, air inlet pipeline; 8, valve block assembly; 9, combination valve block component; 10, valve block control line; 11, junction box; 11a, shell; 11b, internal wiring plate; 11c, external terminal board; 11d, outer binding post; 11e, interconnector; 11f, internal layer binding post; 12, spreader plate; 12a, gib screw connecting hole; 12b, detect aperture air inlet connecting hole; 12c, air inlet connect aperture; 12d, air inlet end aperture; 12e, reversal valve clamp screw pit; 12f, reversal valve air admission hole connecting hole; 12g, reversal valve working hole connecting hole; 12h, reversal valve vent port connecting hole; 12i, vent ports; 12j, junction box attachment screw hole; 12k, air inlet pipeline; 12l, gas exhaust piping; 13, breather plug; 14, plug; 15, reversal valve mounting screw; 16, body mounting screw; 17, detect aperture inlet suction port; 18, inlet suction port.
Embodiment
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples, discloses object of the present invention and is intended to protect all changes and improvements in the scope of the invention.
Known by Fig. 2, Fig. 3, a kind of tractor gearbox body oil hole Leak Detection valve block assembly 8, comprise combination valve block component 9, valve block control line 10, junction box 11 and main control line 5, one end of described combination valve block component 9 is connected with gearbox body 1 by detecting air pipe 2, the other end of described combination valve block component 9 is connected with one end of junction box 11 by valve block control line 10, and the other end of described junction box 11 is connected with leakage tester 6 by main control line 5.
Known by Fig. 3, described combination valve block component 9 is set to rectangular structure, for being separated by the air inlet pipeline leading to each detected oil hole, described combination valve block component 9 comprises spreader plate 12, several reversal valves 3, breather plug 13, plug 14, reversal valve mounting screw 15, body mounting screw 16, detect aperture inlet suction port 17, inlet suction port 18, reversal valve 3 is fixedly installed on the front of spreader plate 12, junction box 11 is fixedly installed on the right side of spreader plate 12, detect aperture inlet suction port 17 is fixedly installed on the left of spreader plate 12, inlet suction port 18 is connected to left part on the upside of spreader plate 12, plug 14 is connected to spreader plate 12 lower left side, breather plug 13 is arranged at the upper and lower both sides of right part of spreader plate 12, one end of main control line 5 is connected with on the downside of junction box 11, the other end of main control line 5 is connected with leakage tester 6 by control line plug 5a, to carry out electrical control to combination valve block component 9, one end of valve block control line 10 is connected with on the upside of junction box 11, the other end of valve block control line 10 is connected with reversal valve 3.
The other end of described valve block control line 10 is connected with the reversal valve valve block control line interface 3a of reversal valve 3.
Known by Fig. 4, the corner of described spreader plate 12 is respectively arranged with the gib screw connecting hole 12a be connected with external stability, spreader plate 12 inside is provided with air inlet pipeline 12k, gas exhaust piping 12l, air inlet pipeline 12k and gas exhaust piping 12l is through the length direction of whole spreader plate 12, and air inlet pipeline 12k is parallel with gas exhaust piping 12l, air inlet pipeline 12k upper end is that air inlet connects aperture 12c, described air inlet connects one end grafting of aperture 12c and inlet suction port 18, the other end of inlet suction port 18 is by connecting loading line 4 and leakage tester 6 UNICOM, the lower end of described air inlet pipeline 12k is air inlet end aperture 12d, one end grafting of described air inlet end aperture 12d and plug 14, prevent air inlet pipeline from leaking gas, the two ends of gas exhaust piping 12l are respectively vent ports 12i, and described vent ports 12i is used for arranging breather plug 13, are conducive to whole pipeline gas and discharge, and intercept external dust and enter line clogging pipeline, described air inlet connects aperture 12c, air inlet end aperture 12d and vent ports 12i and is coniform hole, be provided with detect aperture air inlet connecting hole 12b on the left of described spreader plate 12 Width, the aperture of described detect aperture air inlet connecting hole 12b is bellmouth, one end grafting of described detect aperture air inlet connecting hole 12b and detect aperture inlet suction port 17, the other end of detect aperture inlet suction port 17 is connected with detection air pipe 2, realizes inflating each detect aperture, described spreader plate 12 front is provided with reversal valve air admission hole connecting hole 12f, reversal valve working hole connecting hole 12g, reversal valve vent port connecting hole 12h in the width direction, described reversal valve air admission hole connecting hole 12f, reversal valve working hole connecting hole 12g, reversal valve vent port connecting hole 12h are arranged point-blank, wherein reversal valve air admission hole connecting hole 12f communicates with air inlet pipeline 12k is vertical, reversal valve working hole connecting hole 12g communicates with detect aperture air inlet connecting hole 12b is vertical, and reversal valve vent port connecting hole 12h communicates with gas exhaust piping 12l is vertical, described spreader plate 12 front is provided with two row's reversal valve holding screw connecting hole 12e along its length, and described reversal valve holding screw connecting hole 12e does not communicate with any hole.
From Fig. 5 composition graphs 6, Fig. 7, described reversal valve 3 comprises reversal valve valve block control line interface 3a, reversal valve air admission hole 3b, reversal valve working hole 3c, reversal valve vent port 3d, reversal valve holding screw 3e, hand push button 3f and spool 3g; Wherein reversal valve valve block control line interface 3a connection valve block control line 10, reversal valve air admission hole 3b, reversal valve working hole 3c, reversal valve vent port 3d is provided with bottom reversal valve 3, when inflating to detect aperture, reversal valve air admission hole 3b communicates with reversal valve air admission hole connecting hole 12f, reversal valve working hole 3c communicates with reversal valve working hole connecting hole 12g, and reversal valve vent port 3d is cut off by spool 3g; During detect aperture exhaust, reversal valve vent port 3d communicates with reversal valve vent port connecting hole 12h, and reversal valve working hole 3c communicates with reversal valve working hole connecting hole 12g, and reversal valve air admission hole 3b is cut off by spool 3g; Bottom reversal valve 3, diagonal position is provided with reversal valve holding screw 3e, is connected with reversal valve set screw hole 12e, is fixedly connected on by reversal valve 3 on spreader plate 12; Hand push button 3f is used for the break-make of Non-follow control reversal valve working hole 3c and reversal valve vent port 3d, and effect is same with reversal valve 3 energized phase.
Combination valve block component 9 is arranged on leak-testing instrument frame by reversal valve set screw hole 3e and reversal valve clamp screw pit 12e by described reversal valve mounting screw 15, and combination valve block component 9 is arranged on leak-testing instrument frame by gib screw connecting hole 12a by described body mounting screw 16.
It should be noted that, the connection signal that leakage tester 6 provides only passes to the reversal valve be connected with detected oil hole accordingly, and the reversal valve be connected with other holes does not receive connection signal, is not in on-state.
Reversal valve in embodiment, be German burkert Products, model is 0331, is two position, three-way electromagnetic change valve.
Known by Fig. 8, described junction box 11 is set to rectangular structure, comprise shell 11a, internal wiring plate 11b, external terminal board 11c, outer binding post 11d, interconnector 11e, internal layer binding post 11f, the shell 11a inside of junction box 11 is provided with internal wiring plate 11b and external terminal board 11c, the side that internal wiring plate 11b is relative with main control line 5 is provided with internal layer binding post 11f, the side that external terminal board 11c is relative with valve block control line 10 is provided with outer binding post 11d, internal layer binding post 11f is identical with outer binding post 11d quantity, and connected one to one by interconnector 11e, main control line 5 enters junction box inside, and control line core separately, is connected with the internal layer binding post 11f be fixed on internal wiring plate 11b, external cabling post 11d and each bar valve block control line 10 connect one to one, and valve block control line 10 stretches out from junction box 11 upper end, and the quantity of valve block control line 10 is consistent with the quantity of reversal valve, therefore the control signal that leakage tester is provided by main control line can pass to valve block control line 10 by the shunting action of junction box 11, and then pass to corresponding reversal valve 3, its effect is that the signal that leakage tester 6 sends is passed to corresponding reversal valve respectively, and different reversal valves 3 connects from different detect aperture, the signal of main control line 5 is divided into multiple valve block control line signal by described junction box 11, thus controls multiple reversal valve and carry out work.
Described main control line 5 is set to two, one end of described main control line 5 is connected on the internal layer binding post 11f in junction box by control line core, the other end of main control line 5 is fixedly installed control line plug 5a, described control line plug 5a is the RS232 serial communication interface of standard, for being connected with control module in leakage detector, for receiving the control signal that also transport leaks tester control module sends, this interface can be bought from market.
The using method of described tractor gearbox body oil hole Leak Detection valve block assembly, concrete steps are as follows:
One) according to Fig. 3, Fig. 4, assembling combination valve block component 9, by the reversal valve air admission hole 3b on each reversal valve 3, reversal valve working hole 3c, reversal valve vent port 3d and often group reversal valve air admission hole connecting hole 12f, the reversal valve working hole connecting hole 12g on spreader plate 12, reversal valve vent port connecting hole 12h is corresponding arranges; On spreader plate 12, reversal valve 3 is fixedly installed by reversal valve set screw hole 3e and reversal valve clamp screw pit 12e reversal valve mounting screw 15;
One end of detect aperture inlet suction port 17 is screwed in detect aperture air inlet connecting hole 12b; One end of inlet suction port 18 is screwed in air inlet and connects aperture 12c; One end of plug 14 is screwed in air inlet end aperture 12, prevents air inlet pipeline from leaking gas; Breather plug 13 is set in vent ports 12i, is conducive to whole pipeline gas and discharges, and intercept external dust and enter line clogging pipeline;
Two) according to Fig. 4, Fig. 8, assembling junction box 11, main control line 5 enters junction box inside, and control line core separately, is connected with the internal layer binding post 11f be fixed on internal wiring plate 11b; External cabling post 11d and each bar valve block control line 10 connect one to one, and valve block control line 10 stretches out from junction box 11 upper end;
Three) combination valve block component 9 and junction box 11 is connected, by junction box attachment screw hole 12j screw, junction box 11 is fixedly installed on combination valve block component 9, one end of valve block control line 10 is connected with on the upside of junction box 11, the other end of valve block control line 10 is connected with the reversal valve valve block control line interface 3a of reversal valve 3;
Four) be connected with leakage tester 6 by valve block assembly 8, one end of main control line 5 is connected with on the downside of junction box 11, and the other end of main control line 5 is connected with leakage tester 6 by control line plug 5a; By one end of loading line 4 and inlet suction port 18 grafting, the other end of loading line 4 and leakage tester 6 UNICOM;
Five) valve block assembly 8 is connected with gearbox body 1, connects detect aperture inlet suction port 17 and blocking component and gearbox body 1 by detecting air pipe 2, realizing inflating each detect aperture;
Six) shutoff is carried out to tested gearbox body 1;
Seven) press on leakage tester 6 and start test button, detect;
Eight) whether qualified recording detection data, leak test instrument automatic discrimination;
Nine) carry out the Leak Detection of next gearbox body 1, repeat above-mentioned steps six) ~ eight).
Tractor gearbox body oil hole Leak Detection valve block assembly of the present invention, combines multiple reversal valve, and once handling can complete the Leak Detection of whole oil hole on tractor gearbox body; By common pipeline and blocking component and the quick grafting of leakage detector, use quick detachable flexibly, can connect from different blocking components and leakage detector, detect the tractor gearbox body of different cultivars.
Part not in the detailed description of the invention is prior art.
Further illustrate: the embodiment selected in this paper embodiment in order to open object of the present invention, currently think to be suitable for, but it should be noted that the present invention is intended to comprise all changes belonging to the embodiment in this design and the scope of the invention and improvement.
Claims (10)
1. a tractor gearbox body oil hole Leak Detection valve block assembly, it is characterized in that: comprise combination valve block component (9), valve block control line (10), junction box (11) and main control line (5), one end of described combination valve block component (9) is connected with gearbox body (1) by detecting air pipe (2), the other end of described combination valve block component (9) is connected with one end of junction box (11) by valve block control line (10), and the other end of described junction box (11) is connected with leakage tester (6) by main control line (5).
2. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 1, it is characterized in that: described combination valve block component (9) is set to rectangular structure, described combination valve block component (9) comprises spreader plate (12), several reversal valves (3), breather plug (13), plug (14), reversal valve mounting screw (15), body mounting screw (16), detect aperture inlet suction port (17), inlet suction port (18), reversal valve (3) is fixedly installed on the front of spreader plate (12), junction box (11) is fixedly installed on spreader plate (12) right side, detect aperture inlet suction port (17) is fixedly installed on spreader plate (12) left side, inlet suction port (18) is connected to spreader plate (12) upside left part, plug (14) is connected to spreader plate (12) lower left side, breather plug (13) is arranged at the upper and lower both sides of right part of spreader plate (12), one end of main control line (5) is connected with junction box (11) downside, the other end of main control line (5) is connected with leakage tester (6) by control line plug (5a), one end of valve block control line (10) is connected with junction box (11) upside, the other end of valve block control line (10) is connected with reversal valve (3).
3. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 2, is characterized in that: the other end of described valve block control line (10) is connected with reversal valve valve block control line interface (3a) of reversal valve (3).
4. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 2, it is characterized in that: the corner of described spreader plate (12) is respectively arranged with the gib screw connecting hole (12a) be connected with external stability, spreader plate (12) inside is provided with air inlet pipeline (12k), gas exhaust piping (12l), air inlet pipeline (12k) and the length direction of gas exhaust piping (12l) through whole spreader plate (12), and air inlet pipeline (12k) is parallel with gas exhaust piping (12l), air inlet pipeline (12k) upper end is that air inlet connects aperture (12c), described air inlet connects one end grafting of aperture (12c) and inlet suction port (18), the other end of inlet suction port (18) is by connecting loading line (4) and leakage tester (6) UNICOM, the lower end of described air inlet pipeline (12k) is air inlet end aperture (12d), one end grafting of described air inlet end aperture (12d) and plug (14), the two ends of gas exhaust piping (12l) are respectively vent ports (12i), and described vent ports (12i) is for arranging breather plug (13), described air inlet connects aperture (12c), air inlet end aperture (12d) and vent ports (12i) and is coniform hole, detect aperture air inlet connecting hole (12b) is provided with on the left of described spreader plate (12) Width, the aperture of described detect aperture air inlet connecting hole (12b) is bellmouth, one end grafting of described detect aperture air inlet connecting hole (12b) and detect aperture inlet suction port (17), the other end of detect aperture inlet suction port (17) is connected with detection air pipe (2), described spreader plate (12) front is provided with reversal valve air admission hole connecting hole (12f) in the width direction, reversal valve working hole connecting hole (12g), reversal valve vent port connecting hole (12h), described reversal valve air admission hole connecting hole (12f), reversal valve working hole connecting hole (12g), reversal valve vent port connecting hole (12h) is arranged point-blank, wherein reversal valve air admission hole connecting hole (12f) communicates with air inlet pipeline (12k) is vertical, reversal valve working hole connecting hole (12g) communicates with detect aperture air inlet connecting hole (12b) is vertical, reversal valve vent port connecting hole (12h) communicates with gas exhaust piping (12l) is vertical, described spreader plate (12) front is provided with two row's reversal valve holding screws connecting hole (12e) along its length, and described reversal valve holding screw connecting hole (12e) does not communicate with any hole.
5. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 2, is characterized in that: described reversal valve (3) comprises reversal valve valve block control line interface (3a), reversal valve air admission hole (3b), reversal valve working hole (3c), reversal valve vent port (3d), reversal valve holding screw (3e), hand push button (3f) and spool (3g); Reversal valve valve block control line interface (3a) connection valve block control line (10), reversal valve (3) bottom is provided with reversal valve air admission hole (3b), reversal valve working hole (3c), reversal valve vent port (3d), when inflating to detect aperture, reversal valve air admission hole (3b) communicates with reversal valve air admission hole connecting hole (12f), reversal valve working hole (3c) communicates with reversal valve working hole connecting hole (12g), and reversal valve vent port (3d) is cut off by spool (3g); During detect aperture exhaust, reversal valve vent port (3d) communicates with reversal valve vent port connecting hole (12h), and reversal valve working hole (3c) communicates with reversal valve working hole connecting hole (12g), and reversal valve air admission hole (3b) is cut off by spool (3g); Reversal valve (3) bottom diagonal position is provided with reversal valve holding screw (3e), is connected, is fixedly connected on spreader plate (12) by reversal valve (3) with reversal valve set screw hole (12e).
6. the tractor gearbox body oil hole Leak Detection valve block assembly according to claim 2 or 5, it is characterized in that: be arranged on leak-testing instrument frame on by reversal valve set screw hole (3e) and reversal valve clamp screw pit (12e) by combination valve block component (9) by reversal valve mounting screw (15), combination valve block component (9) is arranged on leak-testing instrument frame by gib screw connecting hole (12a) by described body mounting screw (16).
7. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 2, is characterized in that: described reversal valve (3) is set to two position, three-way electromagnetic change valve.
8. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 1, it is characterized in that: described junction box (11) is set to rectangular structure, comprise shell (11a), internal wiring plate (11b), external terminal board (11c), outer binding post (11d), interconnector (11e) and internal layer binding post (11f), shell (11a) inside of junction box (11) is provided with internal wiring plate (11b) and external terminal board (11c), the side that internal wiring plate (11b) is relative with main control line (5) is provided with internal layer binding post (11f), the side that external terminal board (11c) is relative with valve block control line (10) is provided with outer binding post (11d), the quantity of internal layer binding post (11f) is identical with outer binding post (11d) quantity, and connected one to one by interconnector (11e), main control line (5) enters junction box inside, and control line core separately, is connected with the internal layer binding post (11f) be fixed on internal wiring plate (11b), external cabling post (11d) and each bar valve block control line (10) connect one to one, and valve block control line (10) stretches out from junction box (11) upper end, and the quantity of valve block control line (10) is consistent with the quantity of reversal valve.
9. tractor gearbox body oil hole Leak Detection valve block assembly according to claim 1, it is characterized in that: described main control line (5) is set to two, one end of described main control line (5) is connected on the internal layer binding post (11f) in junction box by control line core, the other end of main control line (5) is fixedly installed control line plug (5a), the RS232 serial communication interface that described control line plug (5a) is standard, is connected with control module in leakage detector.
10. the using method of tractor gearbox body oil hole Leak Detection valve block assembly according to claim 1, is characterized in that: concrete steps are as follows:
One) assemble combination valve block component (9), by the reversal valve air admission hole (3b) on each reversal valve (3), reversal valve working hole (3c), reversal valve vent port (3d) and often group reversal valve air admission hole connecting hole (12f) on spreader plate (12), reversal valve working hole connecting hole (12g), reversal valve vent port connecting hole (12h) is corresponding arranges; On spreader plate (12), reversal valve (3) is fixedly installed by reversal valve set screw hole (3e) and reversal valve clamp screw pit (12e) reversal valve mounting screw (15);
One end of detect aperture inlet suction port (17) is screwed in detect aperture air inlet connecting hole (12b); One end of inlet suction port (18) is screwed in air inlet and connects aperture (12c); One end of plug (14) is screwed in air inlet end aperture (12), prevents air inlet pipeline from leaking gas; Breather plug (13) is set in vent ports (12i);
Two) assemble junction box (11), main control line (5) enters junction box inside, and control line core separately, is connected with the internal layer binding post (11f) be fixed on internal wiring plate (11b); External cabling post (11d) and each bar valve block control line (10) connect one to one, and valve block control line (10) stretches out from junction box (11) upper end;
Three) combination valve block component (9) and junction box (11) is connected, by junction box attachment screw hole (12j) screw, junction box (11) is fixedly installed on combination valve block component (9), one end of valve block control line (10) is connected with junction box (11) upside, the other end of valve block control line (10) is connected with reversal valve valve block control line interface (3a) of reversal valve (3);
Four) be connected with leakage tester (6) by valve block assembly (8), one end of main control line (5) is connected with junction box (11) downside, and the other end of main control line (5) is connected with leakage tester (6) by control line plug (5a); By one end of loading line (4) and inlet suction port (18) grafting, the other end of loading line (4) and leakage tester (6) UNICOM;
Five) valve block assembly (8) being connected with gearbox body (1), connecting detect aperture inlet suction port (17) and blocking component and gearbox body (1) by detecting air pipe (2);
Six) shutoff is carried out to tested gearbox body (1);
Seven) press on leakage tester (6) and start test button, detect;
Eight) whether qualified recording detection data, leak test instrument automatic discrimination;
Nine) carry out the Leak Detection of next gearbox body (1), repeat above-mentioned steps six) ~ eight).
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| CN201410763124.5A CN104483070B (en) | 2014-12-12 | 2014-12-12 | Tractor gearbox body oil hole leak detection valve block assembly and application method |
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| CN201410763124.5A CN104483070B (en) | 2014-12-12 | 2014-12-12 | Tractor gearbox body oil hole leak detection valve block assembly and application method |
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| CN104483070B (en) | 2017-10-13 |
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