CN220599914U - Fault detection device for direct injection fuel injector of diesel locomotive - Google Patents
Fault detection device for direct injection fuel injector of diesel locomotive Download PDFInfo
- Publication number
- CN220599914U CN220599914U CN202322422312.9U CN202322422312U CN220599914U CN 220599914 U CN220599914 U CN 220599914U CN 202322422312 U CN202322422312 U CN 202322422312U CN 220599914 U CN220599914 U CN 220599914U
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- fuel injector
- direct injection
- fault detection
- detection device
- detection
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- 239000000446 fuel Substances 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 51
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a fault detection device for a direct injection fuel injector of an internal combustion locomotive, and belongs to the technical field of fuel injector detection. The utility model provides a diesel locomotive directly spouts sprayer fault detection device, includes the base that is provided with the detection dish, still includes: the driving motor is arranged on the base, the output end of the driving motor is connected with the detection disc, and the detection disc is internally provided with a detection piece; the fuel pump is arranged on the outer side of the detection disc, and the oil outlet end of the fuel pump is connected with an oil conveying pipeline connected with the oil rail; the hydraulic oil cylinder is arranged on the outer side of the detection disc, a piston rod of the hydraulic oil cylinder is connected with a lower pressing plate, and the bottom of the lower pressing plate is elastically connected with a pressing seat; according to the utility model, the positioning mechanism is arranged, so that the device can be used for quickly installing and fixing the fuel rail and the fuel injector, the installation steps of workers are reduced, and the assembly time of the device to the fuel rail is shortened, thereby improving the fault detection efficiency of the direct injection fuel injector.
Description
Technical Field
The utility model relates to the technical field of oil sprayer detection, in particular to a fault detection device for a direct injection oil sprayer of an internal combustion locomotive.
Background
The parts of each assembly of the oil injection system are split parts and comprise parts such as a high-pressure oil pump assembly, a high-pressure oil pipe, an oil pressure fuel rail assembly, an oil injector assembly and the like. In the actual working process, if the oil injector fails, a proper amount of fuel oil cannot be injected into the combustion chamber correctly according to the control requirement, so that the engine shake failure is caused.
In the prior art, the fault diagnosis of the oil sprayer is mainly to observe the oil return quantity, the observation is realized through the pipe wall of a transparent material, and whether the oil sprayer of a certain cylinder of the engine has faults or not is judged rapidly and simply. In addition, based on the fault judgment principle of the detection, the method comprises the steps of adopting auxiliary tool equipment, wherein the auxiliary tool equipment comprises the step of limiting and fixing an oil sprayer part when the fault detection is carried out, firstly controlling a transmission motor to drive a screw rod to rotate, enabling a placing ring to limit two ends of an oil rail, and then enabling an arc-shaped clamping plate to clamp and fix the guide rail in the placing ring by manually rotating a threaded rod. The prior art is often involved in the overhauling and maintenance of automobiles, but for trains or diesel locomotives, the number of cylinders is large, and the number of cylinders is generally more than 12, so that a fault-free oil nozzle is required to be quickly removed in the detection process, and automatic equipment is required to be used.
Disclosure of Invention
The utility model aims to provide a fault detection device for a direct injection fuel injector of an internal combustion locomotive, which improves the detection effect and is convenient to operate.
The technical scheme is as follows: the utility model provides a diesel locomotive directly spouts sprayer fault detection device, includes the base that is provided with the detection dish, still includes:
the driving motor is arranged on the base, the output end of the driving motor is connected with the detection disc, and the detection disc is internally provided with a detection piece;
the fuel pump is arranged on the outer side of the detection disc, and the oil outlet end of the fuel pump is connected with an oil conveying pipeline connected with the oil rail; and
the hydraulic oil cylinder is arranged on the outer side of the detection disc, a piston rod of the hydraulic oil cylinder is connected with a lower pressing plate, the bottom of the lower pressing plate is elastically connected with a pressing seat, and a positioning mechanism is arranged on the pressing seat.
Preferably, the positioning mechanism comprises sliding grooves symmetrically formed in two sides of the pressing seat, sliding blocks slidingly connected in the sliding grooves, first elastic pieces arranged between the inner walls of the sliding grooves and the sliding blocks, and positioning rings fixedly arranged at the bottoms of the sliding blocks, one side of each positioning ring is fixedly provided with a fixed arc plate, the other side of each positioning ring is provided with a movable arc plate, and a second elastic piece is arranged between each movable arc plate and each positioning ring.
Preferably, the fixed arc plate and the movable arc plate comprise an arc plate body and guide plates obliquely arranged at the end parts of the arc plate body.
Preferably, the first elastic component and the second elastic component comprise a fixed sleeve, a first piston which is slidably connected in the fixed sleeve, a first elastic element which is arranged between the first piston and the inner wall of the fixed sleeve, and a movable rod which is fixedly arranged on one side of the first piston, which is away from the first elastic element, wherein an air hole is formed in the outer side of the fixed sleeve, and a positioning component for blocking the air hole is arranged in the outer side of the fixed sleeve.
Preferably, the pressing seat is provided with a first groove, a second elastic element is arranged between the inner wall of the first groove and the lower pressing plate, the pressing seat is provided with a second groove, an air bag is arranged in the second groove, and a pressing block which is movably propped against the air bag is arranged at the bottom of the lower pressing plate.
Preferably, the positioning assembly comprises a connecting seat fixedly arranged on the outer side of the fixed sleeve, a pneumatic cavity arranged in the connecting seat, a second piston slidably connected in the pneumatic cavity, a third elastic element arranged between the second piston and the inner wall of the pneumatic cavity, a movable rod arranged on one side of the second piston deviating from the third elastic element, and a plug block arranged at the end part of the movable rod and used for plugging the air hole, wherein an air guide pipe is arranged between the pneumatic cavity and the air bag.
Preferably, the upper side of the detecting piece is provided with oil sprayer placing grooves distributed at equal intervals, and the outer side of the detecting piece is also provided with oil spraying holes corresponding to the oil sprayer placing grooves one by one
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the fault detection device for the direct injection fuel injector of the diesel locomotive, the positioning mechanism is arranged, so that the device can be used for quickly installing and fixing the fuel rail and the fuel injector, the installation steps of workers are reduced, the assembly time of the device to the fuel rail is shortened, and the fault detection efficiency of the direct injection fuel injector is improved.
2. This diesel locomotive directly spouts sprayer fault detection device drives positioning mechanism centre gripping sprayer through hydraulic cylinder and moves down into the sprayer standing groove, and at this in-process locating component automatic work and restrict first elastic component and second elastic component, keeps positioning mechanism to the grip state of oil rail, avoids driving motor to drive when detecting the dish and rotates, oil rail and sprayer are not hard up, influences the judgement of staff to sprayer fault state.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic cross-sectional view of a first elastic member;
FIG. 4 is a schematic view of a positioning assembly;
FIG. 5 is a schematic view of a positioning ring;
FIG. 6 is a schematic diagram of a fuel rail assembly of a fuel injector.
In the figure: 1. a base; 2. a detection disc; 201. a side plate; 202. a support plate; 3. a driving motor; 4. a detecting member; 401. a fuel injector placement groove; 402. an oil injection hole; 5. a fuel pump; 501. an oil delivery pipeline; 6. a hydraulic cylinder; 7. a lower pressing plate; 701. briquetting; 8. pressing a base; 801. a chute; 802. a slide block; 803. a first elastic member; 804. a positioning ring; 8041. fixing the arc plate; 8042. a movable arc plate; 805. a second elastic member; 9. an arc-shaped plate body; 901. a guide plate; 10. a fixed sleeve; 1001. a first piston; 1002. a first elastic element; 1003. a movable rod; 1004. air holes; 11. a first groove; 111. a second elastic element; 12. a second groove; 121. an air bag; 1211. an air duct; 13. a connecting seat; 131. a pneumatic chamber; 132. a second piston; 133. a third elastic element; 134. a moving rod; 135. a chock; 14. fuel rail assembly of fuel injector.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1, 2 and 3, a fault detection device for a direct injection fuel injector of an internal combustion locomotive comprises a base 1 and a detection disc 2 arranged on the base 1, and further comprises:
the driving motor 3 is arranged on the base 1, the output end of the driving motor 3 is connected with the detection disc 2, and the detection disc 2 is internally provided with a detection piece 4;
the fuel pump 5 is arranged on the outer side wall of the detection disc 2 through a side plate 201, and the oil outlet end of the fuel pump 5 is connected with an oil delivery pipeline 501 connected with an oil rail; and
the hydraulic cylinder 6, the hydraulic cylinder 6 passes through extension board 202 to be set up at the lateral wall of detecting dish 2, and the piston rod of hydraulic cylinder 6 is connected with holding down plate 7, and the bottom elastic connection of holding down plate 7 has presses seat 8, is provided with positioning mechanism on pressing seat 8.
Further, the upper side of the detecting piece 4 is provided with oil sprayer placing grooves 401 distributed at equal intervals, and the outer side of the detecting piece 4 is also provided with oil spraying holes 402 corresponding to the oil sprayer placing grooves 401 one by one.
When the oil sprayer fault occurs to the vehicle, the detached fuel guide rail and the oil sprayer connected with the fuel guide rail are assembled above the detection tool, the fuel guide rail is arranged at the positioning mechanism of the lower side of the pressing seat 8, the two ends of the fuel guide rail are fixedly clamped, then the hydraulic cylinder 6 is controlled to work, the hydraulic cylinder 6 drives the lower pressing plate 7 to move downwards, the lower pressing plate 7 drives the pressing seat 8 and the initially fixed oil sprayer oil rail assembly to move downwards, the oil sprayer below the fuel guide rail is fully connected with the oil sprayer placing groove 401 above the detection part 4, then the driving motor 3 works to drive the detection disc 2 to rotate, a worker can monitor the oil spraying state of the oil spraying hole 402 on the outer side of the detection part 4, then the oil conveying pipeline 501 above the fuel pump 5 is connected with the fuel guide rail, and the fuel pump 5 works to input fuel pressure to the oil sprayer, so that the fault state of the oil sprayer is judged.
Referring to fig. 1, fig. 2, fig. 5 and fig. 6, as a preferred technical solution of the present embodiment, the positioning mechanism includes a chute 801 symmetrically opened at two sides of the pressing seat 8, a sliding block 802 slidably connected in the chute 801, a first elastic member 803 arranged between an inner wall of the chute 801 and the sliding block 802, and a positioning ring 804 fixedly arranged at the bottom of the sliding block 802, one side of the positioning ring 804 is fixedly provided with a fixed arc 8041, the other side of the positioning ring 804 is provided with a movable arc 8042, and a second elastic member 805 is arranged between the movable arc 8042 and the positioning ring 804; when the fuel rail is placed, the side positioning ring 804 drives the sliding block 802 to move in the sliding groove 801, the first elastic piece 803 is compressed, the distance between the two positioning rings 804 is increased, a worker can conveniently place the fuel rail between the two positioning rings 804, the end part of the fuel rail can act on the movable arc 8042 when entering the positioning rings 804, the movable arc 8042 is forced to press the second elastic piece 805, finally, the distance between the movable arc 8042 and the fixed arc 8041 is matched with the size of the fuel rail, the poking force of the positioning rings 804 is removed, the first elastic piece 803 resets and pushes the fuel injectors on the side of the fuel rail, the two reset positioning rings 804 are abutted against the fuel injectors on the two ends of the fuel rail, the pre-fixing of the fuel rail is completed, the operation is simple and fast, and the installation efficiency of the fuel rail is convenient to improve.
Referring to fig. 1, fig. 2 and fig. 5, as a preferred technical solution of this embodiment, the fixed arc 8041 and the movable arc 8042 have the same structure, and each include an arc body 9 and a guide plate 901 obliquely disposed at the end of the arc body 9, when in use, when the end of the fuel rail is inserted into the positioning ring 804, the fuel rail acts on the guide plate 901, and is guided by the guide plate 901, the fuel rail moves between the fixed arc 8041 and the movable arc 8042, and when acting on the guide plate 901, the guide plate 901 drives the arc body 9 to move, so that the arc body 9 extrudes the second elastic piece 805, and finally, the distance between the movable arc 8042 and the fixed arc 8041 is adapted to the size of the fuel rail, so that when the fuel rail is assembled, manual adjustment of a worker is not needed, the assembly time of the fuel rail can be reduced, and the fault detection efficiency of the direct injector is improved.
Referring to fig. 1, fig. 2, fig. 4 and fig. 5, as a preferred technical solution of the present embodiment, the first elastic member 803 and the second elastic member 805 have the same structure, and each include a fixed sleeve 10, a first piston 1001 slidably connected in the fixed sleeve 10, a first elastic member 1002 disposed between the first piston 1001 and an inner wall of the fixed sleeve 10, a movable rod 1003 fixedly disposed on a side of the first piston 1001 facing away from the first elastic member 1002, an air hole 1004 is provided on an outer side of the fixed sleeve 10, and a positioning component for blocking the air hole 1004 is provided on an outer side of the fixed sleeve 10, and when the first elastic member 803 and the second elastic member 805 are stressed during operation, the first elastic member 1002 in the inner portion thereof automatically deforms.
Further, the fixed sleeve 10 of the first elastic member 803 is fixedly connected to the inner wall of the chute 801, the movable rod 1003 of the first elastic member 803 is fixedly connected to the slider 802, the fixed sleeve 10 of the second elastic member 805 is fixedly connected to the positioning ring 804, and the movable rod 1003 of the second elastic member 805 is connected to the movable arc 8042.
Further, a first groove 11 is formed in the pressing seat 8, a second elastic element 111 is arranged between the inner wall of the first groove 11 and the lower pressing plate 7, meanwhile, a second groove 12 is formed in the pressing seat 8, an air bag 121 is arranged in the second groove 12, and a pressing block 701 which is movably abutted against the air bag 121 is arranged at the bottom of the lower pressing plate 7.
Further, the positioning assembly comprises a connecting seat 13 fixedly arranged on the outer side of the fixed sleeve 10 through a connecting plate, a pneumatic cavity 131 arranged in the connecting seat 13, a second piston 132 slidably connected in the pneumatic cavity 131, a third elastic element 133 arranged between the second piston 132 and the inner wall of the pneumatic cavity 131, a moving rod 134 arranged on one side of the second piston 132, which is far away from the third elastic element 133, and a plug block 135 arranged on the end part of the moving rod 134 and used for blocking the air hole 1004, an air duct 1211 is arranged between the pneumatic cavity 131 and the air bag 121, when the positioning assembly is used, after the positioning mechanism is pre-fixed on the fuel rail, the hydraulic cylinder 6 drives the lower pressure plate 7 to move downwards, the lower pressure plate 7 drives the pressure seat 8 and the fuel rail assembly of the fuel injector to move downwards, so that the fuel injector enters the fuel injector placing groove 401, after the fuel injector is abutted with the fuel injector placing groove 401, the hydraulic cylinder 6 continues to drive the lower pressure plate 7 to move downwards, the pressing seat 8 keeps the position motionless after the oil sprayer clamped at the bottom side of the pressing seat is abutted against the detecting element 4, the pressing block 701 on the lower pressing plate 7 presses the air bag 121 in the second groove 12, the air bag 121 is discharged to the positioning components at the first elastic element 803 and the second elastic element 805 through the air duct 1211, namely, the air in the air bag 121 enters the pneumatic cavity 131 through the air duct 1211, the second piston 132 in the pneumatic cavity 131 is forced to move and drives the moving rod 134 to move, the moving rod 134 drives the plug 135 to plug the air hole 1004 of the fixed sleeve 10, the fixed sleeve 10 and the first piston 1001 are in a closed state, the first piston 1001 is further effectively prevented from moving in the fixed sleeve 10, the length of the first elastic element 803 and the second elastic element 805 is limited, the clamping state of the positioning mechanism to the oil rail is kept, and the driving motor 3 is prevented from driving the detecting disc 2 to rotate, the oil rail and the oil sprayer are loosened, so that judgment of the fault state of the oil sprayer by workers is affected.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a diesel locomotive direct injection sprayer fault detection device, includes base (1) that are provided with detection dish (2), its characterized in that still includes:
the driving motor (3), the driving motor (3) is arranged on the base (1) and the output end of the driving motor is connected with the detection disc (2), and the detection disc (2) is internally provided with a detection piece (4);
the fuel pump (5), the fuel pump (5) is arranged at the outer side of the detection disc (2), and the oil outlet end of the fuel pump (5) is connected with an oil delivery pipeline (501) connected with an oil rail; and
the hydraulic oil cylinder (6), hydraulic oil cylinder (6) set up in the outside of detecting dish (2), the piston rod of hydraulic oil cylinder (6) is connected with holding down plate (7), the bottom elastic connection of holding down plate (7) has presses seat (8), be provided with positioning mechanism on pressing seat (8).
2. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 1, wherein the positioning mechanism comprises sliding grooves (801) symmetrically formed in two sides of the pressing seat (8), sliding blocks (802) slidably connected in the sliding grooves (801), first elastic pieces (803) arranged between the inner walls of the sliding grooves (801) and the sliding blocks (802), and positioning rings (804) fixedly arranged at the bottoms of the sliding blocks (802), one side of each positioning ring (804) is fixedly provided with a fixed arc plate (8041), the other side of each positioning ring (804) is provided with a movable arc plate (8042), and second elastic pieces (805) are arranged between the movable arc plates (8042) and the positioning rings (804).
3. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 2, wherein the fixed arc plate (8041) and the movable arc plate (8042) comprise an arc plate body (9) and a guide plate (901) obliquely arranged at the end part of the arc plate body (9).
4. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 2, wherein the first elastic piece (803) and the second elastic piece (805) comprise a fixed sleeve (10), a first piston (1001) slidingly connected in the fixed sleeve (10), a first elastic element (1002) arranged between the first piston (1001) and the inner wall of the fixed sleeve (10), and a movable rod (1003) fixedly arranged on one side, deviating from the first elastic element (1002), of the first piston (1001), an air hole (1004) is formed in the outer side of the fixed sleeve (10), and a positioning assembly for blocking the air hole (1004) is arranged in the outer side of the fixed sleeve (10).
5. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 4, wherein a first groove (11) is formed in the pressure seat (8), a second elastic element (111) is arranged between the inner wall of the first groove (11) and the lower pressure plate (7), a second groove (12) is formed in the pressure seat (8), an air bag (121) is arranged in the second groove (12), and a pressing block (701) which is movably propped against the air bag (121) is arranged at the bottom of the lower pressure plate (7).
6. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 5, wherein the positioning assembly comprises a connecting seat (13) fixedly arranged on the outer side of the fixed sleeve (10), a pneumatic cavity (131) formed in the connecting seat (13), a second piston (132) slidingly connected in the pneumatic cavity (131), a third elastic element (133) arranged between the second piston (132) and the inner wall of the pneumatic cavity (131), a movable rod (134) arranged on one side, deviating from the third elastic element (133), of the second piston (132), and a plug block (135) arranged at the end part of the movable rod (134) and used for blocking the air hole (1004), and an air duct (1211) is arranged between the pneumatic cavity (131) and the air bag (121).
7. The fault detection device for the direct injection fuel injector of the diesel locomotive according to claim 1, wherein fuel injector placement grooves (401) distributed at equal intervals are formed in the upper side of the detection piece (4), and fuel injection holes (402) corresponding to the fuel injector placement grooves (401) one by one are formed in the outer side of the detection piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322422312.9U CN220599914U (en) | 2023-09-07 | 2023-09-07 | Fault detection device for direct injection fuel injector of diesel locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322422312.9U CN220599914U (en) | 2023-09-07 | 2023-09-07 | Fault detection device for direct injection fuel injector of diesel locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220599914U true CN220599914U (en) | 2024-03-15 |
Family
ID=90166293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322422312.9U Active CN220599914U (en) | 2023-09-07 | 2023-09-07 | Fault detection device for direct injection fuel injector of diesel locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220599914U (en) |
-
2023
- 2023-09-07 CN CN202322422312.9U patent/CN220599914U/en active Active
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