CN205858543U - A kind of new work engine high-pressure oil pump roller tappet - Google Patents
A kind of new work engine high-pressure oil pump roller tappet Download PDFInfo
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- CN205858543U CN205858543U CN201620744651.6U CN201620744651U CN205858543U CN 205858543 U CN205858543 U CN 205858543U CN 201620744651 U CN201620744651 U CN 201620744651U CN 205858543 U CN205858543 U CN 205858543U
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- Prior art keywords
- guide collar
- support
- roller tappet
- pressure oil
- oil pump
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Abstract
A kind of new work engine high-pressure oil pump roller tappet, for electromotor injection system, between the driving cam and the fuel feed pump plunger that are installed in cylinder sleeve of engine, described roller tappet includes support, described support two ends are provided with roller or low friction type face, roller is connected with support by bearing pin, drives cam and fuel feed pump plunger to offset with roller or low friction type face respectively；It is additionally provided with anti-inclination mechanism on described support, plays the effect of cross-brace, make roller tappet remain straight reciprocating motion in cylinder sleeve when working.The simple several sheet parts of use of the present utility model are made, can effectively control weight, reduce motion inertia force, reduce friction and wear, improve engine efficiency, offset structures slope, improve service life, and each assembly can select different forms according to different situations, improve economy and adaptability.
Description
Technical field
This utility model relates to engine apparatus technical field, particularly to a kind of new work engine high-pressure oil pump roller
Tappet.
Background technology
Roller tappet is the vitals of a kind of automobile engine using high-pressure oil pump system, be arranged on driving cam and
Between tappet, being that straight reciprocating motion promotes tappet to move simultaneously by the convert rotational motion of driving cam, primary structure includes
Shell, support, roller and bearing pin.
The shell of existing high-pressure oil pump roller tappet is cylindrical barrel housing, complicated cold forming be processed into,
Technological process is complicated, and machining cost is high, causes weight and cost to be difficult to reduce, also cannot optimize the service efficiency of material.
Shell and support are one-body molded for forging, outside the side force causing outside corner to drive cam to act on support can be transferred to
Shell, both can cause casing deformation, and also result in shell and shake in cylinder body, made cylinder body and shell produce damage.Support
Bottom is plane, and the spring tappet being in contact with it when support swings can be with support generation eccentric wear.It is used for limiting in shell side face
The guide pad of roller tappet axial rotation is the split-type structural being embedded on shell, produces linkage editor more complicated.
Utility model content
This utility model problem of the prior art to be solved, it is provided that a kind of new work engine high-pressure oil pump roller tappet,
Structure is simple with assembling, offsets rigging error, reduces and even avoids bearing eccentric wear, makes bearing touch more equalize, and reduces weight
Amount, reduces friction unnecessary between each part, improves reliability.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is as follows:
A kind of new work engine high-pressure oil pump roller tappet, for electromotor injection system, is installed on cylinder sleeve of engine
In driving cam and fuel feed pump plunger between, described roller tappet includes that support, described support two ends are provided with roller or low friction
Profile, roller is hinged with support by bearing pin, drives cam and fuel feed pump plunger to offset with roller or low friction type face respectively；Described
It is additionally provided with anti-inclination mechanism on support, plays the effect of cross-brace, make roller tappet remain straight line in cylinder sleeve when working
Move back and forth.The effect of roller tappet is that the straight reciprocating motion that the rotation driving cam is converted into fuel feed pump plunger is oil pump
Pressure is provided, plays minimizing friction simultaneously, eliminate the effect in gap.
Have a kind of preferred anti-inclination mechanism, for be positioned at support one end be made up of two sides flat board, two sides circular arc ring-type
Guide collar a and the support other end are to the outward extending protuberance in both sides or surrounding, and the plate part of guide collar a is by bearing pin and props up
Frame is hinged.Guide collar a and protuberance act on as cross-brace and ensure that tappet will not roll inside the cylinder sleeve of outside, make
Tappet during work is always maintained at straight reciprocating motion.Guide collar a of hinged installation can do certain turning along the axis of bearing pin
Dynamic, when operating, when producing transverse load between cam and roller or low friction type face, guide collar a can rotate therewith, makes
Support will not be allowed to, by bending load only by axial stress, the pure stress shape being in as architectural engineering framework
State, it is to avoid the deformed damaged of miscellaneous part stress on tappet, also reduces the abrasion of cylinder sleeve simultaneously.Therefore, support can be adopted
By the most less expensive material and simpler structure.Additionally, the parallel flat board extended can be provided with in guide collar a
For installing roller or playing the effect of support.
Preferably, wherein one or two in described guide collar a and described protuberance is provided with detent mechanism, acts on
Cylinder sleeve prevents the rotation of roller tappet circumferencial direction.
Preferably, described detent mechanism can be the locating piece being arranged on guide collar a or cam surface, as required may be used
To adjust the width of locating piece；The positioning block structure being arranged on guide collar a surface has various ways to be formed, as by weldering
It is connected on guide collar a surface to be formed, or is to be welded after a block length strip material bends together with guide collar a；Or from guide collar a
Directly it is stamped to form.
Preferably, the width of described protuberance can adjust according to demand, it is possible to broadening top realizes function, is ensureing
On the premise of intensity, can realize alleviating by offering the hole not limiting shape and quantity thereon the purpose of weight, especially make
The when of by wider size.
Also have a kind of preferred anti-inclination mechanism, be two circular guide collar b, lay respectively at the two ends up and down of support
And it is hinged with support by bearing pin.Two guide collar b act on as cross-brace and ensure that tappet will not inside the cylinder sleeve of outside
Roll, make tappet during work be always maintained at straight reciprocating motion.Guide collar b of two hinged installations can be along bearing pin
Axis does certain rotation, when operating, upper and lower guide collar when producing transverse load between cam and roller or low friction type face
B can rotate therewith, makes support will not be allowed to be in such as architectural engineering framework by bending load only by axial stress
The same uniaxial stressed state, it is to avoid the deformed damaged of miscellaneous part stress on tappet, also reduces the abrasion of cylinder sleeve simultaneously.
Therefore, support can use the most less expensive material and simpler structure.Prolong additionally, can be provided with in guide collar b
The parallel flat board stretched out is for installing roller or playing the effect of support.
Preferably, described guide collar b is provided with detent mechanism, acts on cylinder sleeve and prevents turning of roller tappet circumferencial direction
Dynamic, it is to avoid driving cam cannot accurately contact with roller or low friction type face and cause impacting, described detent mechanism can set
Put in one of them guide collar b, it is also possible to all arrange in two guide collar b.
Preferably, described detent mechanism is the locating piece e being positioned at guide collar b outer surface.Cylinder sleeve is provided with corresponding straight line
Groove, both have coordinated the effect preventing rotating.
Preferably, the one or both sides that described guide collar b contacts with bearing pin are set to plane, and described detent mechanism is plane
The elastic spring extended up or down and bend.Prevent from rotating it can also be used to side by the effect of elasticity of spring leaf Yu cylinder sleeve
Cylinder sleeve for plane.
Preferably, described detent mechanism is the groove being positioned at guide collar b outer surface.It is convex that cylinder sleeve is provided with corresponding straight line
Rising, both coordinate it to prevent the effect rotated.
Preferably, described guide collar b is set to opening form, and described detent mechanism is the leaf outwards bending extension from opening part
Sheet.Cylinder sleeve is provided with corresponding joint-cutting groove, and both coordinate it to prevent the effect rotated.
The height of the above several detent mechanism is the arbitrary dimension less than or equal to guide collar b height, when less than leading
When the height of circle b, may be provided on arbitrary height and position of guide collar b.Such as the locating piece e as detent mechanism, its height
Highly and the position in the middle of guide collar b can be arranged on less than guide collar b.
Another kind of preferred anti-inclination mechanism, is circular guide collar b and a plectane, lays respectively at support
Two ends, guide collar b is hinged with support by bearing pin, and plectane is fixed on support.Guide collar b and plectane act on as cross-brace
Will not roll with guarantee tappet inside the cylinder sleeve of outside, make tappet during work be always maintained at straight reciprocating motion.Its advantage
The transverse load produced when being work is only eliminated by the rotation of guide collar b, it is therefore prevented that can to support when having two guide collar b
The coupling of the power that can occur, makes tappet subjected to stress simpler, such that it is able to use material lighter, that intensity is relatively low.
Preferably, described guide collar b or plectane are provided with detent mechanism, act on cylinder sleeve and prevent roller tappet circumferencial direction
Rotation.Detent mechanism can be several detent mechanisms in anti-inclination mechanism described before.
Also have a kind of preferred anti-inclination mechanism, for being fixed on the elastic sheet in arc-shaped at the upper and lower two ends of support, do not have
There is the rotating guide collar structure of employing.The transverse load produced during work can be eliminated by the elastic deformation of thin plate, its
Advantage is without the hinge making guide collar rotate and bearing pin, and thin plate uses light material, alleviates whole to the full extent
The weight of individual mechanism.
Preferably, described elastic sheet is provided with detent mechanism, acts on cylinder sleeve and prevents turning of roller tappet circumferencial direction
Dynamic.Same, detent mechanism can be several detent mechanisms in anti-inclination mechanism described before.
Preferably, the length of described support can be adjusted as required, and its structure can be:
The riser composition that two pieces are parallel to each other, it is adaptable to support two ends all use the roller by hinge, anti-inclination
Mechanism can be two circular guide collar, and roller and guide collar share bearing pin, or anti-inclination mechanism is for being fixed on support
The elastic sheet in arc-shaped at two ends up and down；
Or, in "U" shaped structure, it is adaptable to the opening of support is provided with the roller by hinge and guide collar knot
Structure, it is low friction type face that the other end is provided with guide collar or Circular plate structure, plectane or frame bottom；
Or, in frame-shaped construction, without roller and guide collar structure, it is adaptable to anti-inclination mechanism is for being fixed on support upper and lower two
The elastic sheet in arc-shaped of end, the upper and lower two ends of support are low friction type face；
Or, in having up big and down small stair-stepping pair of "U" shaped structure, it is adaptable to the opening of support is provided with by pin
Roller that axle is hinged and guide collar structure, the other end is provided with guide collar structure, and frame bottom is low friction type face.
Preferably, the straight plate in both sides of described support can offer some slotted eyes, beneficially loss of weight；The straight plate in both sides of support
Between can also set up crossbeam, increase the ability of support opposing transverse load, strengthen its lateral stiffness, the quantity of crossbeam, shape
Can select as required with position.
Preferably, described bearing pin is a standard component, and be used for connecting support and guide collar and roller driven on top
The power of cam passes to support.Bearing pin can be the bearing pin of cuphead pilotage, flat-headed pin or other multi-forms, and it is arranged in guide collar
Mode can be to press, revolve riveting or other mounting means.
Additionally, the longitudinal direction of the above guide collar a and guide collar b highly can adjust as required, for relatively narrow structure
Advantage is can more flexible rotating with the impact of farthest reduction transverse load after there is transverse load.Meanwhile,
Less width makes tappet weight loss effect become apparent from, and the inertia of whole mechanism is less, and energy loss reduces therewith, mechanism anti-
Answer speed the most faster.
The beneficial effects of the utility model are: 1. use simple several sheet parts to make.Can effectively control
Weight, reduces motion inertia force, reduces friction and wear, improves engine efficiency.It is computed, relative to traditional high-pressure oil pump
Roller tappet, can alleviate the weight of at least 30%.
2. part form is simple, and overall structure is simple, and production procedure is simple, can effectively reduce production cost.
3. the locating ring of top roller part uses chain connection or soft elastic material, made by transverse load permissible
Rotate or compressed, the transverse load that cam brings can be effectively eliminated, improving service life.
The most each assembly can select different forms according to different situations, improves economy and adaptability.
Accompanying drawing explanation
Fig. 1 is operating diagram of the present utility model.
Fig. 2 is a kind of structural representation of this utility model embodiment one.
Fig. 3 is that this utility model executes the structural representation of guide collar a in example one.
Fig. 4 is that this utility model executes the first structural representation of shorter locating piece in example one.
Fig. 5 is the second structural representation that this utility model executes shorter locating piece in example one.
Fig. 6 is that this utility model executes the third structural representation of shorter locating piece in example one.
Fig. 7 be the protuberance of this utility model embodiment one medium-height trestle narrower time top view.
Fig. 8 be the protuberance of this utility model embodiment one medium-height trestle wider time top view.
Fig. 9 be the protuberance top of this utility model embodiment one medium-height trestle broadening time top view.
Figure 10 is the wider protuberance of this utility model embodiment one medium-height trestle top view when offering hole.
Figure 11 is this utility model embodiment one medium-height trestle structural representation without crossbeam.
Figure 12 is the structural representation that this utility model embodiment one medium-height trestle has crossbeam a.
Figure 13 is the structural representation that this utility model embodiment one medium-height trestle has crossbeam b.
Figure 14 is the another kind of structural representation of this utility model embodiment one.
Figure 15 is the structural representation of this utility model embodiment two.
Figure 16 is the structural representation of this utility model embodiment three.
Figure 17 is that this utility model executes the first structural representation of detent mechanism in example three.
Figure 18 is the second structural representation that this utility model executes detent mechanism in example three.
Figure 19 is that this utility model executes the third structural representation of detent mechanism in example three.
Figure 20 is the 4th kind of structural representation that this utility model executes detent mechanism in example three.
Figure 21 is the structural representation of this utility model embodiment four.
Figure 22 is the structural representation of this utility model embodiment five.
Figure 23 is the structural representation of this utility model embodiment six.
In figure: 1, support；1.1, riser；1.2, " U " font structure；1.2.1, " U " font structure a；1.2.2, slotted eye；
1.2.3, crossbeam a；1.2.4, crossbeam b；1.2.5, protruding b；1.2.6, hole；1.3, double " U " font structures；1.4, protuberance；
1.4.1, protuberance a；1.4.2, protuberance b；1.4.3, protuberance c；2, roller；3, low friction type face；4, bearing pin；5, drive convex
Wheel；6, fuel feed pump plunger；7, guide collar；7.1, guide collar a；7.1.1, locating piece a；7.1.2, locating piece b；7.1.3, locating piece c；
7.1.4, locating piece d；7.2, guide collar b；7.2.1, locating piece e；7.2.2, elastic spring；7.2.3, groove；7.2.4, blade；
7.3, guide collar c；7.3.1, locating piece f；8, plectane；9, elastic sheet；9.1, protruding a.
Detailed description of the invention
Below by detailed description of the invention and accompanying drawing, this utility model is further described.
As it is shown in figure 1, a kind of new work engine high-pressure oil pump roller tappet, for electromotor injection system, it is installed on
Between driving cam 5 and fuel feed pump plunger 6 in cylinder sleeve of engine, roller tappet include support 1, support 1 two ends be provided with roller 2 or
Low friction type face 3, roller 2 is hinged with support 1 by bearing pin 4, driving cam 5 and fuel feed pump plunger 6 respectively with roller 2 or low friction
Profile 3 offsets；It is additionally provided with anti-inclination mechanism on support 1, plays the effect of cross-brace, begin in cylinder sleeve when making roller tappet work
Keeping straight reciprocating motion eventually, the anti-inclination mechanism shown in Fig. 1 is two guide collar 7 structures.
Embodiment one of the present utility model is: as in figure 2 it is shown, support 1 is in "U" shaped structure 1.2, and anti-inclination mechanism is position
There is two sides flat board, guide collar a7.1 of two sides arc structure and be positioned at "U" shaped structure in "U" shaped structure 1.2 upper end
1.2 lower ends are outward extending protuberance 1.4 to both sides, and guide collar a7.1 and roller 2 are hinged with support 1 by bearing pin 4, " U " word
Shape structure 1.2 bottom surface is set to low friction type face 3, in addition for loss of weight, the straight plate in both sides of support 1 can offer some slotted eyes
1.2.2.Guide collar a7.1 or protuberance 1.4 are provided with detent mechanism.
Shown in Fig. 3-6, the detent mechanism in guide collar a7.1 is the locating piece being arranged at guide collar a7.1 surface, fixed
The length of position block can adjust as required, can be longer locating piece d7.1.4, it is also possible to for shorter locating piece, its shape
The mode become also has multiple, as a example by shorter locating piece: as shown in Figure 4, for the locating piece being welded in guide collar a7.1
a7.1.1；As it is shown in figure 5, be for the locating piece being welded after bending with a block length strip material together with guide collar a7.1
b7.1.2；As shown in Figure 6, for the locating piece c7.1.2 being stamped to form in guide collar a7.1.
In the present embodiment, the width of protuberance 1.4 can adjust according to demand: as it is shown in fig. 7, be narrower protuberance
a1.4.1；As shown in Figure 8, for wider protuberance b1.4.1；As it is shown in figure 9, be the broadening protuberance c1.4.1 in top.Such as figure
Shown in 10, on the protuberance b1.4.1 with wider structure, the structure that can offer hole 1.2.6 realizes alleviating the mesh of weight
's.
Additionally, in the present embodiment, according to the ability of support 1 transverse load, can choose whether that the both sides at support 1 are straight
Crossbeam is set up: in the occasion that load is relatively low, crossbeam can not be installed, as shown in figure 11 between plate；Support 1 is increased higher needs of load
The ability of opposing transverse load, strengthens the occasion of its lateral stiffness and can install crossbeam, the most respectively two kinds
The crossbeam of different structure, is the crossbeam a1.2.3 of monomer structure shown in Figure 12, is in the binode of support 1 both sides shown in Figure 13
The crossbeam b1.2.4 of structure, the position of two kinds of crossbeams is the most different, wherein, if the crossbeam b1.2.4 shown in Figure 13 prolongs to both sides
Stretch, detent mechanism can be equally set as anti-inclination mechanism on it.
Being the another kind of structure of the present embodiment as shown in figure 14, have longer support 1, guide collar a7.1 is provided with location
Block d7.1.4, it is fixed for adding on the basis of Fig. 2 and being provided with protruding b1.2.5 on the structure of crossbeam b1.2.4 and protuberance 1.4
Position mechanism.
Embodiment two of the present utility model is: as shown in figure 15, it is shorter that the difference with embodiment one is that support 1 uses
" U " font structure a1.2.1, it is detent mechanism that protuberance 1.4 is provided with protruding b1.2.5, because its structure is shorter, is therefore propping up
There is no on beam structure, and guide collar a7.1 not have detent mechanism on frame 1 yet.
Embodiment three of the present utility model is: as shown in figure 16, and support 1 uses in having up big and down small stair-stepping double
"U" shaped structure 1.3, it is hinged with support 1 by bearing pin 4 that upper end is provided with roller 2, and lower end is set to low friction type face 3, anti-inclination machine
Structure is two circular guide collar b7.2, lay respectively at support 1 two ends up and down and by bearing pin 4 hinged with support 1.
Wherein one or two in two guide collar b7.2 is provided with detent mechanism, acts on cylinder sleeve and prevents roller tappet
The rotation of circumferencial direction.Its specific embodiment has:
The embodiment one of detent mechanism: as shown in figure 17, detent mechanism is the locating piece being positioned at guide collar b7.2 outer surface
e7.2.1.Being provided with corresponding straight-line groove on cylinder sleeve, both have coordinated the effect preventing rotating.
The embodiment two of detent mechanism: as shown in figure 18, the one or both sides that guide collar b7.2 contacts with bearing pin 4 are set to
Plane, detent mechanism is the elastic spring 7.2.2 that plane extends up or down and bends.By elasticity of spring leaf 7.2.2 and cylinder
The effect of set prevents from rotating it can also be used to side is the cylinder sleeve of plane.
The embodiment three of detent mechanism: as shown in figure 19, detent mechanism is the groove being positioned at guide collar b7.2 outer surface
7.2.3.Cylinder sleeve is provided with corresponding rectilinear projection, and both coordinate it to prevent the effect rotated.
The embodiment four of detent mechanism: as shown in figure 20, guide collar b7.2 is set to opening form, described detent mechanism be from
Opening part outwards bends the blade 7.4 of extension.Cylinder sleeve is provided with corresponding joint-cutting groove, and both coordinate it to prevent the effect rotated.
Embodiment four of the present utility model is: as shown in figure 21, the difference with embodiment three is, the width of guide collar 7
Difference, uses longitudinally the narrowest guide collar c7.3, advantage be can be more flexible after there is transverse load rotation with
Farthest reduce the impact of transverse load.Meanwhile, less width makes tappet weight loss effect become apparent from, whole mechanism
Inertia is less, and energy loss reduces therewith, and the response speed of mechanism is the most faster.In two guide collar c7.3 one of them or
Two are provided with detent mechanism, act on cylinder sleeve and prevent the rotation of roller tappet circumferencial direction, and Figure 21 show locating piece f7.3.1,
Can also be other several detent mechanisms described in embodiment three.
Embodiment five of the present utility model is: as shown in figure 22, and support 1 is two pieces of risers being parallel to each other 1.1, anti-inclination
Mechanism is circular guide collar b7.2 and a plectane 8, lays respectively at the two ends of two pieces of riser 1.1 structures, upper end
Guide collar b7.2 and roller 2 are hinged with two pieces of risers 1.1 by bearing pin 4, and plectane 8 is fixed on two pieces of risers 1.1 and lower surface sets
For low friction type face 3, the detent mechanism in guide collar b7.2 is locating piece e7.2.1.Although additionally, do not show in figure, but circle
The detent mechanism of such as locating piece e7.2.1 can also be set on plate 8.Certainly, institute during detent mechanism can also use embodiment three
Other several structures stated.
Embodiment six of the present utility model is: as shown in figure 23, and support 1 is in "U" shaped structure 1.2, and anti-inclination mechanism is
Being fixed on the elastic sheet 9 in arc-shaped at support about 1 two ends, "U" shaped structure 1.2 upper end is provided with roller 2 by bearing pin 4
Hinged with support 1, lower surface is set to low friction type face 3, and it is detent mechanism that elastic sheet 9 is provided with protruding a9.1.
It will be apparent that slotted eye 1.2.2, hole 1.2.6 and the beam structure in embodiment one to be equally applicable to other several
Embodiment.
It particularly to be noted that, several structures of the support 1 mentioned in above-mentioned several embodiments, roller 2 and low friction
Several structures of the setting of profile 3, several structures of anti-inclination mechanism and detent mechanism can combine the most freely.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to
This, this utility model may be used on the product that is similar to, any those skilled in the art in field of the present utility model, institute
Change or the modification made all are contained among the scope of the claims of the present utility model.
Claims (12)
1. a new work engine high-pressure oil pump roller tappet, for electromotor injection system, is installed in cylinder sleeve of engine
Driving cam and fuel feed pump plunger between, it is characterised in that: described roller tappet includes that support, described support two ends are provided with roller
Or low friction type face, roller by bearing pin hinged with support, driving cam and fuel feed pump plunger respectively with roller or low friction type face
Offset；
It is additionally provided with anti-inclination mechanism on described support, plays the effect of cross-brace, when making roller tappet work in cylinder sleeve all the time
Keep straight reciprocating motion.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 1, it is characterised in that: described anti-side
The mechanism that inclines is to be positioned at ring-type guide collar a being made up of two sides flat board, two sides circular arc of support one end and the support other end to both sides
Or the outward extending protuberance of surrounding, the plate part of guide collar a is hinged with support by bearing pin.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 2, it is characterised in that: described guiding
Wherein one or two in circle a and described protuberance is provided with detent mechanism, acts on cylinder sleeve and prevents roller tappet circumference side
To rotation.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 3, it is characterised in that: described location
Mechanism is the locating piece being arranged on guide collar a or cam surface, adjusts the width of locating piece as required；It is arranged on guide collar
The positioning block structure on a surface has:
It is welded on the locating piece on guide collar a surface；
Or, it is the locating piece being welded after a block length strip material bends together with guide collar a；
Or, from guide collar a, it is stamped to form locating piece.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 2, it is characterised in that described protrusion
The structure in portion has:
Narrower protuberance a；
Or, wider protuberance b；
Or, the protuberance c that top is broadening；
Wherein, the structure of providing holes on protuberance.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 1, it is characterised in that: described anti-side
The mechanism that inclines is two circular guide collar b, lays respectively at the two ends up and down of support and hinged with support by bearing pin.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 6, it is characterised in that: described guiding
Circle b is provided with detent mechanism, acts on cylinder sleeve and prevents the rotation of roller tappet circumferencial direction；Described detent mechanism is disposed therein
In one guide collar b, or all arrange in two guide collar b.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 7, it is characterised in that described location
Mechanism is:
It is positioned at the locating piece e of guide collar b outer surface；
Or, the one or both sides that guide collar b contacts with bearing pin are set to plane and extend up or down from plane and bend
Elastic spring；
Or, it is positioned at the groove of guide collar b outer surface；
Or, guide collar b is set to opening form and outwards bends the blade of extension from opening part.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 1, it is characterised in that: described anti-side
The mechanism that inclines is circular guide collar b and a plectane, lays respectively at the two ends of support, guide collar b by bearing pin with
Frame is hinged, and plectane is fixed on support；Described guide collar b or plectane are provided with detent mechanism, act on cylinder sleeve and prevent roller tappet
The rotation of circumferencial direction.
A kind of new work engine high-pressure oil pump roller tappet the most according to claim 1, it is characterised in that: described anti-
Rolling mechanism is the elastic sheet in arc-shaped being fixed on the upper and lower two ends of support；Described elastic sheet is provided with detent mechanism,
Act on cylinder sleeve and prevent the rotation of roller tappet circumferencial direction.
11. according to a kind of new work engine high-pressure oil pump roller tappet described in any one of claim 1-10, and its feature exists
Structure in described support is:
The riser composition that two pieces are parallel to each other；
Or, in "U" shaped structure；
Or, in frame-shaped construction；
Or, in having up big and down small stair-stepping pair of "U" shaped structure.
12. a kind of new work engine high-pressure oil pump roller tappets according to claim 11, it is characterised in that: described
The length of frame is adjusted as required, and some slotted eyes offered by the straight plate in both sides of support, sets up crossbeam between the straight plate in both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744651.6U CN205858543U (en) | 2016-07-12 | 2016-07-12 | A kind of new work engine high-pressure oil pump roller tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744651.6U CN205858543U (en) | 2016-07-12 | 2016-07-12 | A kind of new work engine high-pressure oil pump roller tappet |
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| Publication Number | Publication Date |
|---|---|
| CN205858543U true CN205858543U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620744651.6U Withdrawn - After Issue CN205858543U (en) | 2016-07-12 | 2016-07-12 | A kind of new work engine high-pressure oil pump roller tappet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050504A (en) * | 2016-07-12 | 2016-10-26 | 杭州新坐标科技股份有限公司 | Novel high-pressure oil pump roller tappet for engine |
-
2016
- 2016-07-12 CN CN201620744651.6U patent/CN205858543U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050504A (en) * | 2016-07-12 | 2016-10-26 | 杭州新坐标科技股份有限公司 | Novel high-pressure oil pump roller tappet for engine |
| CN106050504B (en) * | 2016-07-12 | 2018-08-14 | 杭州新坐标科技股份有限公司 | A kind of engine high-pressure oil pump roller tappet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170104 Effective date of abandoning: 20180814 |