CN208476131U - Fuel injector protrusion height measuring device - Google Patents

Fuel injector protrusion height measuring device Download PDF

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Publication number
CN208476131U
CN208476131U CN201821025057.7U CN201821025057U CN208476131U CN 208476131 U CN208476131 U CN 208476131U CN 201821025057 U CN201821025057 U CN 201821025057U CN 208476131 U CN208476131 U CN 208476131U
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CN
China
Prior art keywords
fuel injector
pointer
protrusion height
adjusting rod
height measuring
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Active
Application number
CN201821025057.7U
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Chinese (zh)
Inventor
张德联
李晓东
何国伟
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Weichai Heavy Machinery Co Ltd
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Weichai Heavy Machinery Co Ltd
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Priority to CN201821025057.7U priority Critical patent/CN208476131U/en
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Abstract

The utility model discloses a kind of fuel injector protrusion height measuring devices, including mounting rack, mounting rack is fixedly installed at the upper part with bracket, pointer is hinged on bracket, the indication end that pointer is corresponded on mounting rack is fixed with graduated scale, pointer is equipped with reset spring in the opposite end of indication end, and the lower end of reset spring is connect with mounting rack;Mounting rack is equipped with perforating, and adjusting rod is coated in perforating, and the lower end of adjusting rod is equipped with the measurement plate for being placed on fuel injector to be measured, and the top of adjusting rod is equipped with bulb, and bulb protrudes into the ball-and-socket of pointer lower end surface setting.Fuel injector elevation carrection is transformed to the instruction of pointer on the scale by the principle of lever by the utility model, easy to operate, and measurement is accurate and reliable, high-efficient.The lever ratio of pointer is adjusted to adjust measurement accuracy in the utility model, and 1mm can be indicated with biggish radian, reads and is more convenient intuitively, easy to operate to can also be used in on-line checking since its structure is simple.

Description

Fuel injector protrusion height measuring device
Technical field
The utility model relates to a kind of fuel injector protrusion height measuring devices.
Background technique
Diesel injector protrusion height has large effect to the performance and discharge index of diesel engine, so in diesel engine Performance optimization in often carry out fuel injector protrusion height test, in order to accelerate research and development progress, sometimes use fuel injector protrusion height The test of fuel injector angle between spray orifices is substituted, this just needs to carry out fuel injector protrusion height measurement, while adjusting spray after product approval When oily device protrusion height, it is also desirable to fuel injector protrusion height measurement is carried out, in fuel injector protrusion height by processing the type guaranteed, In view of the importance of fuel injector protrusion height, detected, in order to avoid the overproof influence diesel engine performance of fuel injector protrusion height.
The method of existing fuel injector protrusion height measurement is measured using slide calliper rule or depth ruler, when measurement must with one it is hollow Object is placed on the extended position of fuel injector oil head, measures oil head and hollow body relative size, in the height of measurement hollow body Size calculates fuel injector oil head;The cylinder head for installing fuel injector is placed on platform by another method, with adjustment cushion block by gas Cylinder cap it is levelling come measuring table and cylinder head bottom surface gap measure fuel injector protrusion height;Another method adds on bracket Dial gauge measurement.The measurement of existing fuel injector protrusion height needs auxiliary tool to measure, and is obtained by calculation as a result, this Measurement process is complicated, low efficiency, and inaccuracy (because slide calliper rule or depth ruler measurement contact area are small);Add dial gauge on bracket Measurement, the bad determination of dial gauge zero point, dial indicator head protrusion height are grades, and percentage meter reading is difficult;Above measurement side Method can not achieve on-line checking.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of measurement fuel injector protrusion height and can to fuel injector into The fuel injector protrusion height measuring device of row on-line checking.
In order to solve the above technical problems, the utility model includes mounting rack, the mounting rack is fixedly installed at the upper part with bracket, described Pointer is hinged on bracket, the indication end that pointer is corresponded on the mounting rack is fixed with graduated scale, and the pointer is in indication end Opposite end is equipped with reset spring, and the lower end of the reset spring is connect with mounting rack;The mounting rack, which corresponds to pointer and offers, to be worn Apertured, is coated with adjusting rod in the perforating, the lower end of the adjusting rod be equipped with for being placed on fuel injector to be measured and Its lower surface is the measurement plate of plane, and the top of the adjusting rod is equipped with bulb, and the bulb protrudes into the setting of pointer lower end surface Ball-and-socket in.
The lower surface of the measurement plate is plane.
The rotating member is bulb, and bulb is corresponded on the pointer equipped with ball-and-socket.
The top of the adjusting rod is equipped with the bulb of adjustable protrusion height.
The upper section of the adjusting rod is equipped with external screw thread, and the bulb lower end is equipped with mounting rod, and the mounting rod lower end is equipped with Counterbore, the counterbore is interior to be equipped with the internal screw thread matched with adjusting rod external screw thread, and the upper section of the adjusting rod is bolted with adjustment spiral shell It is female.
Supporting plate is fixed on the mounting rack, the graduated scale is packed on supporting plate, and the graduated scale is equipped with groove.
Qualified area is labeled on the graduated scale.
Guide pipe is fixed in the perforating of the mounting rack, the adjusting rod is threaded through in guide pipe.
The ball-and-socket is arranged between pin shaft and reset spring.
The mounting rack includes mounting plate and the supporting leg for being packed in mounting plate bottom surface, the length and support of the adjusting rod The length of leg is adapted.
After adopting the above structure, fuel injector elevation carrection is transformed to pointer by the principle of lever and is carving by the utility model The instruction on ruler is spent, easy to operate, measurement is accurate and reliable, high-efficient.The lever ratio of pointer is adjusted to adjust in the utility model Measurement accuracy, 1mm can be indicated with biggish radian, read and are more convenient intuitively, easy to operate also to can be used since its structure is simple In on-line checking.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model:
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, fuel injector protrusion height measuring device includes mounting rack, mounting rack includes mounting plate 3 and is packed in The supporting leg 14 of 3 bottom surface of mounting plate, mounting plate 3 are fixedly installed at the upper part with the bracket 10 for stretching setting, and the top of bracket 10 is equipped with U-shaped Slot, bracket 10 are hinged with pointer 11 by pin shaft 9 at U-type groove, and the indication end that pointer 11 is corresponded on mounting plate 3 is fixed with scale Ruler 2, graduated scale 2 is arc-shaped, and pointer 11 is connected with connecting rod 15 in the opposite end of indication end, and the tilt angle of connecting rod, which is less than, to be referred to The tilt angle of needle 11 is also convenient for the instruction of pointer 11 convenient for the installation of other component.The end of connecting rod is equipped with reset spring 5, the lower end of reset spring 5 is connect with mounting plate 3.The corresponding pointer 11 of mounting plate 3 offers perforating, and tune is coated in perforating Pole 6, the lower end of adjusting rod 6 are equipped with for being placed on the measurement plate 12 that on fuel injector to be measured and its lower surface is plane, survey The outer peripheral surface of template 12 is arcwall face, can smoothly enter into the lower surface of measurement plate 12, adjusting rod 6 convenient for fuel injector when on-line checking Top rotating member 8 is installed, rotating member 8, which protrudes into the groove of 11 lower end surface of pointer setting, makes pointer with moving down on adjusting rod It moves and swings.Rotating member is bulb in the present embodiment, and groove is ball-and-socket shape, and bulb and ball-and-socket cooperate, and can prevent pointer or so from putting It is dynamic.Also cylindrical bar etc. can be selected in rotating member, and other both can guarantee the location consistency of pointer and adjusting rod, and can guarantee that pointer can The structure that relative adjustment bar is swung up and down.
The top of adjusting rod 6 is equipped with the bulb of adjustable protrusion height, and bulb protrudes into the ball of 11 lower end surface of pointer setting In nest.The center of ball-and-socket, pin shaft 9 and pointer 11 is located in a straight line, and bulb and ball-and-socket mating spherical surfaces guarantee adjusting rod 6 Upper and lower displacement and 11 pivot angle of pointer are in proportionate relationship.The upper section of adjusting rod 6 is equipped with external screw thread, and bulb lower end is equipped with mounting rod 13, 13 lower end of mounting rod is equipped with counterbore, is equipped with the internal screw thread matched with 6 external screw thread of adjusting rod, the upper section spiral shell of adjusting rod 6 in counterbore It is connected to adjusting nut 7.Structure height-adjustable in the prior art also can be selected in the connection structure of bulb and adjusting rod 6.
Ball-and-socket is arranged between pin shaft 9 and reset spring 5, i.e. ball-and-socket lower surface that connecting rod is arranged in.The length of adjusting rod 6 The length of degree and supporting leg 14 is adapted, convenient for returning to zero to the utility model.Supporting plate 1, graduated scale 2 are fixed on mounting rack It is packed on supporting plate 1, graduated scale 2 is equipped with groove.Qualified area is labeled on graduated scale 2, it can be by the position of corresponding groove It is indicated with brightly painted coating, when pointer 11 indicates in this region, mark protrusion height is qualified.In the perforating of mounting rack It is fixed with guide pipe 4, adjusting rod 6 is threaded through in guide pipe 4.The length of guide pipe 4 is greater than the thickness of mounting plate 3, thus effectively Adjusting rod 6 is oriented to.
Before use, return to zero first, which is placed on release adjusting nut 7 on platform, with 6 end spiral shell of adjusting rod Line and bulb internal screw thread adjust the combined altitudes of adjusting rod 6 and bulb, until the zero point of graduated scale 2 is directed toward in the indication end of pointer 11 Adjusting nut 7 is locked in position, which is placed on to the position of fuel injector cylinder head bottom surface fuel injector stretching, measurement plate after zeroing 12 lower surfaces are pressed on fuel injector, and the scale for being directed toward graduated scale 2 from pointer 11 can read the protrusion height of fuel injector.It is assembling When fuel injector, it can be adjusted according to the fuel injector protrusion height increase and decrease adjustment gasket measured until reaching design requirement;For When line detects, the utility model adjusted is placed in tooling moving up and down, allows the cylinder head bottom surface for installing fuel injector The device is passed sequentially through upward, observes pointer 11, it is no if pointer 11 refers to indicates qualified in the range of graduated scale 2 is coated with color Then for it is unqualified choose handled.
The utility model is easy to operate when measuring fuel injector protrusion height, and measurement is accurate and reliable, high-efficient;Due to measurement 12 base area of plate is big, solve slide calliper rule and the depth ruler measurement contact area it is small and measure inaccuracy;The utility model is adjustable The lever ratio of pointer 11 adjusts measurement accuracy, and 1mm can indicate with biggish radian, reads more convenient intuitive;The device is also It can be used for on-line checking.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model.Previous embodiment The utility model is described in detail, it for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.In every case practical new at this Within the scope of the inventive concept of type, any modification, equivalent substitution, improvement and etc. done are all contained in the protection of the utility model Within the scope of.

Claims (10)

1. a kind of fuel injector protrusion height measuring device, it is characterized in that including mounting rack, the mounting rack is fixedly installed at the upper part with bracket (10), it is hinged with pointer (11) on the bracket (10), the indication end that pointer (11) is corresponded on the mounting rack is fixed with scale Ruler (2), the pointer (11) are equipped with reset spring (5), the lower end of the reset spring (5) and installation in the opposite end of indication end Frame connection;The mounting rack corresponds to pointer (11) and offers perforating, and adjusting rod (6), the tune are coated in the perforating The lower end of pole (6) is equipped with for being placed on measurement plate (12) on fuel injector to be measured, and the top of the adjusting rod (6) is equipped with Rotating member (8), the rotating member (8), which is protruded into the groove that pointer (11) lower end surface is arranged, makes pointer moving up and down with adjusting rod And it swings.
2. fuel injector protrusion height measuring device according to claim 1, it is characterized in that the lower surface of the measurement plate is Plane.
3. fuel injector protrusion height measuring device according to claim 1, it is characterized in that the rotating member is bulb, it is described Bulb is corresponded on pointer equipped with ball-and-socket.
4. fuel injector protrusion height measuring device according to claim 2, it is characterized in that the top of the adjusting rod (6) is pacified Bulb equipped with adjustable protrusion height.
5. fuel injector protrusion height measuring device according to claim 4, it is characterized in that the upper section of the adjusting rod (6) is set There is external screw thread, the bulb lower end is equipped with mounting rod (13), and mounting rod (13) lower end is equipped with counterbore, is equipped in the counterbore The upper section of the internal screw thread matched with adjusting rod (6) external screw thread, the adjusting rod (6) is bolted with adjusting nut (7).
6. fuel injector protrusion height measuring device according to claim 1, it is characterized in that being fixed with branch on the mounting rack Plate (1), the graduated scale (2) are packed on supporting plate (1), and the graduated scale (2) is equipped with groove.
7. fuel injector protrusion height measuring device according to claim 6, it is characterized in that being labeled on the graduated scale (2) Qualified area.
8. fuel injector protrusion height measuring device according to claim 1, it is characterized in that in the perforating of the mounting rack It is fixed with guide pipe (4), the adjusting rod (6) is threaded through in guide pipe (4).
9. fuel injector protrusion height measuring device according to claim 3, it is characterized in that the ball-and-socket is arranged in pin shaft (9) Between reset spring (5).
10. fuel injector protrusion height measuring device according to any one of claim 1 to 9, it is characterized in that the installation Frame includes mounting plate (3) and the supporting leg (14) for being packed in mounting plate (3) bottom surface, the length and supporting leg of the adjusting rod (6) (14) length is adapted.
CN201821025057.7U 2018-06-30 2018-06-30 Fuel injector protrusion height measuring device Active CN208476131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821025057.7U CN208476131U (en) 2018-06-30 2018-06-30 Fuel injector protrusion height measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821025057.7U CN208476131U (en) 2018-06-30 2018-06-30 Fuel injector protrusion height measuring device

Publications (1)

Publication Number Publication Date
CN208476131U true CN208476131U (en) 2019-02-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821025057.7U Active CN208476131U (en) 2018-06-30 2018-06-30 Fuel injector protrusion height measuring device

Country Status (1)

Country Link
CN (1) CN208476131U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109883289A (en) * 2019-02-27 2019-06-14 常州正河源数控工具有限公司 A kind of cubing detecting knife handle outer cone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109883289A (en) * 2019-02-27 2019-06-14 常州正河源数控工具有限公司 A kind of cubing detecting knife handle outer cone

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