CN209115241U - Piezo-electric crystal fuel injector tests chucking device - Google Patents
Piezo-electric crystal fuel injector tests chucking device Download PDFInfo
- Publication number
- CN209115241U CN209115241U CN201822100252.8U CN201822100252U CN209115241U CN 209115241 U CN209115241 U CN 209115241U CN 201822100252 U CN201822100252 U CN 201822100252U CN 209115241 U CN209115241 U CN 209115241U
- Authority
- CN
- China
- Prior art keywords
- spring
- fuel injector
- oil catcher
- honour
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
Piezo-electric crystal fuel injector tests chucking device, belongs to fuel injector experimental technique field, and the utility model is in order to solve the problems, such as that traditional chucking device is easily damaged fuel injector.The bottom end of guide spiro rod is connect with firm banking clearance fit, guide spiro rod can be moved up and down with relatively fixed pedestal, and the bottom end of guide spiro rod is equipped with screwed retaining ring, the upper surface of screwed retaining ring and firm banking against, spring lower seat is mounted on guide spiro rod, and spring lower seat lower end surface and firm banking against, the spring seat of honour is by being threadably mounted on guide spiro rod, spring lower seat is connected by spring with the spring seat of honour, oil catcher is mounted on the spring seat of honour, delivery connection is mounted on the side wall of oil catcher, and delivery connection and oil catcher connects with the internal cavities, pressing device is fixedly mounted on the fixed base, the output end of pressing device is by oil sprayer clamping on oil catcher.The piezo-electric crystal fuel injector test chucking device structure of the utility model is simple, and avoidable fuel injector is damaged.
Description
Technical field
The utility model relates to a kind of chucking devices, and in particular to piezo-electric crystal fuel injector tests chucking device, belongs to spray
Oily device experimental technique field.
Background technique
Currently, domestic and international various diesel engines use automatically controlled spray one after another as the upgrading of various countries' diesel engine emissions regulations is perfect
Oil tech is to meet exhaust emissions requirement.Piezo-electric crystal fuel injector is with its quick response speed, compact structure, good low
Noise performance is widely adopted on many advanced diesel oil passenger cars.
The piezo-electric crystal fuel injector that we can touch at present, is assemblied on imported engine, is all import.
Due to the particular/special requirement of its structure size, which needs to design specific chucking device in testing inspection, can just make to spray
From damage when oily device is loaded.
The chucking device used at present in market in repair service is all to withstand fuel injector by two opposite screws to consolidate it
It is fixed.The diesel oil that fuel injector sprays is fixed on the oil catcher on fuel injector with screw jackscrew by one and collects.This chucking device
It is easy that oil injector body and oil nozzle is made to be damaged.And oil collector sump tank is easy to be shaken and fall off during testing, high pressure bavin
Mist of oil easily injures experimenter, pollution environment.
Utility model content
The purpose of the utility model is to provide piezo-electric crystal fuel injectors to test chucking device, is held with solving traditional chucking device
The problem of fuel injector easy to damage.
It includes firm banking, screwed retaining ring, guide spiro rod, spring lower seat, bullet that piezo-electric crystal fuel injector, which tests chucking device,
Spring, the spring seat of honour, oil catcher, delivery connection and pressing device；
The bottom end of guide spiro rod is connect with firm banking clearance fit, and the bottom end of guide spiro rod is equipped with screwed retaining ring,
The upper surface of screwed retaining ring and firm banking against, spring lower seat is mounted on guide spiro rod, and the lower end surface of spring lower seat with
Firm banking is against by being threadably mounted on guide spiro rod, spring lower seat is connected by spring with the spring seat of honour at the spring seat of honour
It connects, oil catcher is mounted on the spring seat of honour, and delivery connection is mounted on the side wall of oil catcher, and inside delivery connection and oil catcher
Cavity connection, pressing device are fixedly mounted on the fixed base, and the output end of pressing device is by oil sprayer clamping on oil catcher.
Preferred: the top of oil catcher is provided with groove, the bottom of groove and the connects with the internal cavities of oil catcher, the side of groove
Wall is equipped with the first sealing rubber ring, and groove and internal cavities intersection are equipped with the second sealing rubber ring.
Preferred: the top at the spring seat of honour is equipped with protrusion, and the bottom face of oil catcher is provided with the mounting hole matched with protrusion,
Gasket is equipped between delivery connection and oil catcher between the spring seat of honour and the bottom face of oil catcher.
Preferred: pressing device includes top nut, pressing plate, lower nut, screw thread column and fixture nut, and screw thread column passes through
Fixture nut is fixedly mounted on the fixed base, and pressing plate is mounted on screw thread column by top nut and lower nut, and pressing plate can be
It rotates and moves up and down on screw thread column.
The utility model has the effect that compared with existing product
Using with fuel injector install the consistent pressing plate of shape, by fuel injector downwardly against；Fuel injector oil collector sump tank uses one
A cylinder device for having twice rubber sealing；Cylinder device lower part is supported upwards by the spring with enough elastic force, and passes through spy
Fixed structure will not fall off oil catcher；Using the flexible principle of spring, fuel injector is initially charged in oil collector sump tank, then
It is set in fuel injector installation fixing position and pushes down fuel injector with a pressing plate.There is sealing rubber ring in oil catcher, keeps installation reliable, operation letter
Single, reliable, good airproof performance, defencive function are strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of piezo-electric crystal fuel injector test chucking device.
In figure: 1- top nut, 2- pressing plate, 3- lower nut, 4- screw thread column, 5- fixture nut, 6- firm banking, 7- anticreep
Nut, 8- guide spiro rod, 9- spring lower seat, 10- spring, the 11- spring seat of honour, 12- oil catcher, 13- oil catcher, 14- first are close
Sealing rubber ring, the second sealing rubber ring of 15-.
Specific embodiment
The utility model preferred embodiment is elaborated below according to attached drawing.
As shown in Figure 1, piezo-electric crystal fuel injector test chucking device described in the utility model includes firm banking 6, prevents
De- nut 7, guide spiro rod 8, spring lower seat 9, spring 10, the spring seat of honour 11, oil catcher 12, delivery connection 13 and pressing device；
The bottom end of guide spiro rod 8 is connect with 6 clearance fit of firm banking, and the bottom end of guide spiro rod 8 is equipped with anticreep spiral shell
Mother 7, the upper surface of screwed retaining ring 7 and firm banking 6 are against spring lower seat 9 is mounted on guide spiro rod 8, and spring lower seat 9
Lower end surface and firm banking 6 are against by being threadably mounted on guide spiro rod 8, spring lower seat 9 passes through spring 10 at the spring seat of honour 11
It is connected with the spring seat of honour 11, oil catcher 12 is mounted on the spring seat of honour 11, and delivery connection 13 is mounted on the side wall of oil catcher 12
On, and delivery connection 13 and 12 connects with the internal cavities of oil catcher, pressing device are fixedly mounted on firm banking 6, pressing device
Output end by oil sprayer clamping on oil catcher 12.
Further, the top of oil catcher 12 is provided with groove, the bottom of groove and the connects with the internal cavities of oil catcher 12, groove
Side wall be equipped with the first sealing rubber ring 14, groove and internal cavities intersection are equipped with the second sealing rubber ring 15.
Further, the top at the spring seat of honour 11 is equipped with protrusion, the bottom face of oil catcher 12 is provided with the peace matched with protrusion
Hole is filled, is equipped with gasket between delivery connection 13 and oil catcher 12 between the spring seat of honour 11 and the bottom face of oil catcher 12.
Further, pressing device includes top nut 1, pressing plate 2, lower nut 3, screw thread column 4 and fixture nut 5, screw thread is vertical
Column 4 is fixedly mounted on firm banking 6 by fixture nut 5, and pressing plate 2 is mounted on screw thread column by top nut 1 and lower nut 3
On 4, pressing plate 2 can be rotated and be moved up and down on screw thread column 4.
Working principle:
Firstly, unscrewing top nut 1, pressing plate 2 is moved to the left to the position for not interfering fuel injector to be packed into oil-collecting body 12.It will
Piezo-electric crystal fuel injector be packed into oil-collecting body 12 in, downwards with force oil injector body make spring 10 be compressed to close to its maximum
Stroke；The position for adjusting lower nut 3, the installation fixing position of fuel injector can be put in and set and (both unclamp fuel injector by being located just at pressing plate
When under the action of spring 10, be in close contact with pressing plate 2 above fuel injector, lower section and oil-collecting body 12 are in close contact), at this time after
Continue downward adjusting nut 1 and 2, further compress fuel injector, last locking nut 1 guarantees being reliably connected for fuel injector.
When dismantling fuel injector, top nut 1 only need to be unclamped, extracts pressing plate 2 out to the left.
This embodiment is just an exemplary description of this patent, does not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (4)
1. piezo-electric crystal fuel injector tests chucking device, it is characterised in that: including firm banking (6), screwed retaining ring (7), guiding
Screw rod (8), spring lower seat (9), spring (10), the spring seat of honour (11), oil catcher (12), delivery connection (13) and pressing device；
The bottom end of the guide spiro rod (8) is connect with firm banking (6) clearance fit, and the bottom end of guide spiro rod (8) is equipped with
Screwed retaining ring (7), the upper surface and firm banking (6) of screwed retaining ring (7) are against spring lower seat (9) is mounted on guide spiro rod (8)
On, and the lower end surface of spring lower seat (9) and firm banking (6) are against the spring seat of honour (11) are by being threadably mounted at guide spiro rod
(8) on, spring lower seat (9) is connected by spring (10) with the spring seat of honour (11), and oil catcher (12) is mounted on the spring seat of honour
(11) on, delivery connection (13) is mounted on the side wall of oil catcher (12), and delivery connection (13) and oil catcher (12) are internal empty
Chamber connection, pressing device are fixedly mounted on firm banking (6), and the output end of pressing device is by oil sprayer clamping in oil catcher
(12) on.
2. piezo-electric crystal fuel injector according to claim 1 tests chucking device, it is characterised in that: the oil catcher (12)
Top be provided with groove, the bottom of groove and the connects with the internal cavities of oil catcher (12), the side wall of groove are equipped with the first sealing
Cushion rubber (14), groove and internal cavities intersection are equipped with the second sealing rubber ring (15).
3. piezo-electric crystal fuel injector according to claim 1 tests chucking device, it is characterised in that: the spring seat of honour
(11) top is equipped with protrusion, the bottom face of oil catcher (12) be provided with the mounting hole that matches of protrusion, the spring seat of honour (11) and
Gasket is equipped between delivery connection (13) and oil catcher (12) between the bottom face of oil catcher (12).
4. piezo-electric crystal fuel injector according to claim 1 tests chucking device, it is characterised in that: the pressing device packet
Top nut (1), pressing plate (2), lower nut (3), screw thread column (4) and fixture nut (5) are included, screw thread column (4) passes through fixed spiral shell
Female (5) are fixedly mounted on firm banking (6), and pressing plate (2) is mounted on screw thread column (4) by top nut (1) and lower nut (3)
On, pressing plate (2) can be rotated and be moved up and down on screw thread column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100252.8U CN209115241U (en) | 2018-12-13 | 2018-12-13 | Piezo-electric crystal fuel injector tests chucking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100252.8U CN209115241U (en) | 2018-12-13 | 2018-12-13 | Piezo-electric crystal fuel injector tests chucking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115241U true CN209115241U (en) | 2019-07-16 |
Family
ID=67208074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822100252.8U Active CN209115241U (en) | 2018-12-13 | 2018-12-13 | Piezo-electric crystal fuel injector tests chucking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115241U (en) |
-
2018
- 2018-12-13 CN CN201822100252.8U patent/CN209115241U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3831846A (en) | Fuel injector | |
| CN109356760A (en) | Piezo-electric crystal fuel injector tests chucking device | |
| CN209115241U (en) | Piezo-electric crystal fuel injector tests chucking device | |
| CN201225208Y (en) | Gas nozzle for automobile | |
| CN105351130A (en) | Pressurization no-leakage piezoelectric control type gas injection device | |
| CN113167147A (en) | Improved valve seat for improved lubricator pump unit and lubrication system of large low-speed two-stroke engine, and improved lubricator pump unit | |
| CN2893194Y (en) | Diesel engine fuel injection device | |
| CN213598104U (en) | High-pressure fluid injection device and internal combustion engine | |
| CN105756829B (en) | Combined mechanical oil spout is pressurized piezoelectricity jet hybrid fuel jet device | |
| CN204553037U (en) | A kind of constant volume bullet oil sprayer gondola and fixed mechanism thereof | |
| CN208441951U (en) | A kind of diesel engine pluralities of fuel fuel injector structure | |
| CN210317570U (en) | Valve rod matching part high-pressure common rail oil injector | |
| CN210396936U (en) | Oil sprayer for direct injection engine in cylinder | |
| CN205714521U (en) | Combined mechanical oil spout-supercharging piezoelectricity jet hybrid fuel jet device | |
| CN105756825A (en) | Combined electromagnetic fuel oil injection and pressurizing piezoelectric fuel gas injection mixed fuel injection device | |
| CN201103501Y (en) | Diesel hammer of pile driver with oil pump and ejection apparatus | |
| CN105756831B (en) | Combined mechanical oil spout piezoelectricity jet hybrid fuel jet device | |
| RU2514558C1 (en) | Plunger pump | |
| CN217233686U (en) | PT sprayer test device | |
| CN205714523U (en) | Combined mechanical oil spout-piezoelectricity jet hybrid fuel jet device | |
| CN104153840A (en) | Electronic control cylinder lubricating device | |
| CN205207029U (en) | Piezoelectric control of leakage formula fuel gas jetting device is not had in pressure boost | |
| CN2656654Y (en) | Internal pressure-regulating oil injection device for diesel locomotive | |
| CN220120328U (en) | Helium leakage detection device for automatic sealing | |
| CN216241023U (en) | Durable oil sprayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |