CN100582458C - Speed transmission device - Google Patents
Speed transmission device Download PDFInfo
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- CN100582458C CN100582458C CN200410069640A CN200410069640A CN100582458C CN 100582458 C CN100582458 C CN 100582458C CN 200410069640 A CN200410069640 A CN 200410069640A CN 200410069640 A CN200410069640 A CN 200410069640A CN 100582458 C CN100582458 C CN 100582458C
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- bar
- speed regulator
- spring
- governor
- governor arm
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- 230000005540 biological transmission Effects 0.000 title 1
- 239000000446 fuel Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 abstract description 25
- 239000007924 injection Substances 0.000 abstract description 25
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000011068 loading method Methods 0.000 description 19
- 238000005452 bending Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A simple structure which is easy to be processed is formed by reducing parts number while the cost is reduced. The governor device has a governor lever 15 composed of a first lever 16 interlocked with a governor weight 11 to adjust the injection quantity of a fuel injection pump, and a second lever 17 regulating the rotation of the first lever 16 within a prescribed range and connected to a rotating speed setting lever 20. The bearing part 16a of the first lever 16 is supported rotatable freely on the governor lever shaft 18. The bearing part 17a of the second lever 17 is disposed at the two sides of the bearing part 16a of the first lever 16. At least one bearing part 17a of the second lever 17 is fixed on the governor lever shaft 18.
Description
Technical field
The application relates to the speed regulator that is used for internal-combustion engines such as diesel engine.
Background technique
In the past, the technology that centrifugal governor is set in diesel engine was known.The structure that centrifugal governor adopts is: by being arranged on crankshaft gear on the bent axle, rotating via drive speed adjustor axles such as gears, be embedded with the speed regulator equilibrium block outside on this governor shaft, by slide mass this speed regulator equilibrium block is linked to each other with governor arm, make the controller bar that is used for fuel adjusting in this governor arm and the fuel-injection pump be connected (for example, referring to patent documentation 1).
In this structure, if pilot engine, then make it to set the rotation of rotating speed, afterwards, if be higher than the setting rotating speed, then open speed regulator equilibrium block and slide mass slip by centrifugal force, and governor arm is rotated, make the controller bar to reducing side shifting, reduce the fuel injection amount of fuel-injection pump, opposite, if the centrifugal force that reduces rotating speed so that be applied on the speed regulator equilibrium block reduces, then make its closure, thereby the controlling rod that makes fuel-injection pump is to the increment side shifting, to increase the fuel injection amount of fuel-injection pump by the spring that loads in opposite direction.
[patent documentation 1] spy opens the 2003-27966 communique
Summary of the invention
In speed regulator in the past, governor arm is by first bar that links to each other with described controller bar, limits second bar that this first bar rotates by limitation part with predetermined range, contact the 3rd bar formation with increment that can fuel metering with limiter.But, owing to adopted the structure that constitutes governor arm by three bars, therefore, exist number of components many, the unfavorable condition that cost height and machining period increase.In addition, in speed regulator, reduce in the slowly run fuel injection amount of the fuel-injection pump in the district, under the situation that the automatic control characteristic of fuel injection quantity is provided, because the complex structure of angleich device, therefore, exist number of components more, the unfavorable condition that cost is very high.
Problem to be solved by this invention as mentioned above, below, the means that solve described problem are illustrated.
Promptly, in technological scheme 1, in speed regulator of the present invention, by constituting governor arm with first bar of the emitted dose of fuel metering jet pump and the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar with speed regulator equilibrium block interlock, in this speed regulator: the bearing portion with described first bar is bearing on the governor arm axle free to rotately, the bearing portion of described second bar is set in the bearing portion both sides of described first bar, at least one the bearing portion in described second bar is fixed on the described governor arm axle.
In technological scheme 2, the axis hole that is arranged in the bearing portion of described second bar constitutes polygon or semilune, this bearing portion is coupled on the governor arm axle and with fastening piece fixes.
In technological scheme 3, in described speed regulator, by constituting governor arm with first bar of the emitted dose of fuel metering jet pump and the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar with speed regulator equilibrium block interlock, in this speed regulator: a side that constitutes described second bar with コ word shape, inserting a side of described first bar in this コ character segment rotates with restriction, simultaneously, an end of the コ character segment of described second bar can be contacted with the limiter in the outside that is disposed at described コ character segment.
In technological scheme 4, an end of the コ character segment of described second bar is extended to the middle part of a side of first bar.
As effect of the present invention, can realize following effect.
In technological scheme 1, in described speed regulator, by with speed regulator equilibrium block interlock first bar with the emitted dose of fuel metering jet pump, constitute governor arm with the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar, in this speed regulator: the bearing portion with described first bar is bearing on the governor arm axle free to rotately, the bearing portion of second bar is set in the both sides of the bearing portion of described first bar, at least one bearing portion in described second bar is fixed on the governor arm axle, therefore, be easy to assemble governor arm, and the fixed structure of first bar is also simple.In addition, can easily realize the location of governor arm on the governor arm axle.
In technological scheme 2, owing to the axis hole in the bearing portion that will be arranged on described second bar constitutes polygon or semilune, and this bearing portion is coupled on the governor shaft and with fastening piece fixes, so the fixed structure of first bar becomes simply, and assembling becomes easy.
In technological scheme 3, in described speed regulator, by with speed regulator equilibrium block interlock first bar with the emitted dose of fuel metering jet pump, constitute governor arm with the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar, in this speed regulator: a side that constitutes second bar with コ word shape, inserting a side of first bar in this コ character segment rotates with restriction, simultaneously, one end of the コ character segment of described second bar is contacted with limiter, therefore, can carry out the restriction of the limit rotation and the engine speed of first bar by second bar, can reduce the quantity of parts, thereby reduce cost.In addition, second bar can adopt the simple structure of コ word shape, only just can easily make by plate is carried out bending.
In technological scheme 4, because an end of the コ character segment of described second bar is extended to the middle part of a side of first bar, so can limit the rotation of first bar reliably by second bar.
Description of drawings
Fig. 1 is the sectional plan view of front elevation of the speed regulator of one embodiment of the invention;
Fig. 2 is its back elevation.
Fig. 3 is its planimetric map.
Fig. 4 is the sectional plan view of the front elevation of limiter.
Fig. 5 is the front elevation of other embodiment's speed regulator.
Fig. 6 is its back elevation.
The sectional plan view of the speed regulator when Fig. 7 is starting.
Fig. 8 is the sectional plan view of the speed regulator when running well.
Fig. 9 is near the enlarged view the pin among Fig. 4.
Figure 10 reduces near the enlarged view of pin of the state of fuel feed for expression.
Embodiment
Below, embodiments of the invention are described.
Fig. 1 is the sectional plan view of front elevation that relates to the speed regulator of one embodiment of the invention, Fig. 2 is the back elevation of this speed regulator, Fig. 3 is the planimetric map of this speed regulator, Fig. 4 is the sectional plan view of the front elevation of limiter, Fig. 5 is the front elevation of another embodiment's speed regulator, Fig. 6 is the back elevation of this speed regulator, the part sectioned view of speed regulator when Fig. 7 is starting, the part section planimetric map of speed regulator when Fig. 8 is normal operation, Fig. 9 is near the enlarged view the pin among Fig. 4, and Figure 10 reduces near the enlarged view of pin of the state of fuel feed for expression.
Utilize the structure of speed regulator among couple the present invention of Fig. 1～3 to describe.In addition, in the following description, for convenience, with the direction of arrow A among Fig. 3 as the place ahead.
In housing 2, the camshaft 3 of outstanding supporting fuel jet pump, fixed gear 4 on the protuberance of this camshaft 3.In addition, the governor shaft 5 that be arranged in parallel in the side of camshaft 3 is fixed with gear 6 midway, gear 4 engagements of this gear 6 and described camshaft 3 at this governor shaft 5.And, be provided with speed regulator 10 in a side of governor shaft 5.
In speed regulator 10, utilize the maintenance body 12 be fixed on the governor shaft 5 and can be bearing in slide mass 13 on the governor shaft 5 with being free to slide at its opposition side, keep a plurality of spherical speed regulator equilibrium blocks 11.And the top of slide mass 13 contacts with the contacting part 16b16b of the described governor arm 15 in back, and the slide mass 13 that moves through of the speed regulator equilibrium block 11 that is caused by centrifugal force is passed to governor arm 15.
Described governor arm 15 is made of first bar 16 and second bar 17.First bar 16 its vertically (about) middle part is provided with the 16a of bearing portion, and utilizes the 16a of this bearing portion free to rotately by the bottom of pivot suspension at governor arm axle 18.In a side of first bar 16, promptly at the side-prominent setting in the left side of the 16a of bearing portion (governor shaft 5) a pair of contacting part 16b16b up and down, the tip portion of described slide mass 13 contacts the tip portion of this contacting part 16b16b.On the other hand, tip portion with the connecting part 16c of forked formation at the opposite side of first bar 16, be that the right side (camshaft) side of the 16a of bearing portion is stretched out, the controller bar 19 that will be used to regulate to the fuel feed of fuel-injection pump is attached to this connecting part 16c.
Therefore, by foregoing speed regulator 10 and the fuel-injection pump of being connected, when the rotating speed of motor improves, the rotatory force that produces together is passed to governor shaft 5 by gear 4,6 etc. therewith, the rotating speed of governor shaft 5 raises, so that act on centrifugal force on speed regulator equilibrium block 11, this speed regulator equilibrium block 11 is to the outer side shifting of radial direction, thereby by these speed regulator equilibrium block 11 compressing slide masses 13 and it is forwards slided.And, slip by slide mass 13, contacting part 16b16b by this slide mass 13 compressings first bar 16, first bar 16 is that rotating fulcrum rotates along clockwise direction with governor arm axle 18 in Fig. 3, so that the controller bar 19 that combines with the connecting part 16c of this first bar 16 is mobile backward, thereby reduce the fuel injection amount of fuel-injection pump.
On the contrary, when the rotating speed of motor reduced, the centrifugal force that acts on the speed regulator equilibrium block 11 reduced, and speed regulator equilibrium block 11 is to the radial direction medial movement, and slide mass 13 is pushed and slided backward by first bar 16.At this moment, load by back 22 pairs first bars 16 of described spring, and in Fig. 3, be that rotating fulcrum is to counterclockwise rotating with governor arm axle 18, along with noted earlier opposite, thereby make the fuel injection amount increase of fuel-injection pump forwards to mobile controller bar 19.Therefore, the rotation of first bar 16 that can be by governor arm 15, the fuel injection amount of control fuel-injection pump makes the rotating speed of motor reach the rotating speed of setting.
Foregoing second bar 17 carries out bending to plate and forms, and so that predetermined distance is outstanding the tongue-shaped bearing 17a17a of portion is set abreast up and down in its governor shaft 5 sides, has axis hole so that by 18 supportings of governor arm axle on the described bearing 17a17a of portion.The 17a17a of metal (upper portion is with the mode of the 16a of bearing portion of described first bar 16 of clamping both sides down disposed thereon, and at least one among the described bearing 17a17a of portion is fixed on the governor arm axle 18, so that second bar 17 and governor arm axle 18 unitary rotation.Second bar 17 is not limited to fastening or welding of screw etc. with respect to the fixed structure of governor arm axle 18, in the present embodiment, the circle that the axis hole of the last side bearing 17a of portion matches for the profile with governor arm axle 18, the axis hole of the following side bearing 17a of portion forms with polygon or semilune.The lower end profile of governor arm axle 18 also forms the shape that matches with axis hole, and fixes by nut.Therefore, governor arm 15 has adopted the simple assembling form that makes first bar 16 and second bar 17 insert governor arm axle 18 and only be fixed by nut.The fixed structure of first bar 16 also is simple structure.In addition, be easy to realize the location of governor arm 15 on governor arm axle 18.
In addition, via governor arm axle 18 described second bar 17 is connected with speed setting bar 20.Speed setting bar 20 is fixed on by the top of the governor arm axle 18 of housing 2 supporting and outstanding along radial direction, sets the rotating speed of motors via being installed in spring 21 on its protuberance, and links to each other with the regulator handle (not shown) that motor is stopped.Therefore, by second bar 17 can limiting engine rotating speed.
In addition, make in second bar 17 upper bend with the 17a17a of bearing portion opposite side (right side), form second bar 17, and the part that front and back are oppositely arranged is as limitation part 17b17c thereby roughly be " コ " word shape with the side.Making about limitation part 17b17c biasing setting, so that the limitation part 17c that is arranged on the front side is positioned at more right side than the limitation part 17b of rear side.And, between limitation part 17b17c, along the left and right directions setting and insert described first bar 16, and it only can be rotated in the width range of the front and back of limitation part 17b17c, so that limit the rotation of first bar 16 by limitation part 17b17c.Especially, be configured in the limitation part 17c of front side, its front end extends to the middle part of first bar 16, can limit the rotation of first bar 16 reliably.Therefore, can carry out the restriction of engine speed and the limit rotation of first bar 16, thereby can reduce the quantity of parts and reduce cost by second bar 17.
In addition, under the state between the limitation part 17b17c that first bar 16 is inserted described second bar 17, be provided with the spring 22 that forms by dual torsion-coil spring (two torsion spring) between the limitation part 17b in limitation part 17b17c and first bar 16, by this spring 22, first bar 16 is loaded along the direction that increases fuel feed.The set-up mode of spring 22 is: its spire 22a22a is with the mode of clamping first bar 16 down both sides disposed thereon, thereby closely is arranged between first bar 16 and second bar 17.
The engagement portion is from the spiral part 22a22a of described spring 22, stretch out with both direction along tangent direction roughly.Extend to first bar, 16 sides as straight section 22c22c the engagement portion of one side, the tip portion of these straight sectioies 22c22c respectively along upper and lower to bending, and be fastened on the middle part of first bar.
Extend to the limitation part 17b side of second bar 17 as the straight section 22b that is seen as " コ " word shape from the side the engagement portion of opposite side, and hang over the integrally formed hook 17d of limitation part 17b on.The structure that hook 17d adopts is: parallelly with the part of limitation part 17b has otch and forms tongue-shaped part, and with " く " word sigmoid this tongue-shaped part shown in the plane, and its rear side (with first bar, 16 opposite sides) opening.Therefore, the straight section 22b that makes described spring 22 1 ends is outstanding laterally from the inboard of second bar 17, thereby can be hooked on simply on the hook 17d that is formed at the 17a of the bearing portion opposition side of second bar 17.Therefore, because the limitation part 17b17c with second bar 17 disposes mutually with staggering as previously described, so can be under the state that spring 22 is fastened on first bar 16 insert second bar 17 from the right side of Fig. 3, as long as a distolateral straight section 22b is fastened on the hook 17d, just can realize simple assembling.In addition, the part that can make spring 22 effect is as much as possible near first bar 16, thereby can reduce the loss of spring force.
In addition, make the top of the pin 27 of limiter 25 contact preceding (relative) side of described limitation part 17c with first bar 16.Limiter 25 limits the rotation of governor arm 15 according to the rotating speed of motor, and dismantled and assembled and be installed on the housing 2 with can carrying out the position adjustment.
As shown in Figure 4, described limiter 25 is by the main body 26 in the spiral insertion housing 2, can be contained in this main body 26 and the pin 27 that can contact with described second bar 17 with being free to slide, along the direction of stretching out from main body 26 to the spring 28 of these pin 27 loadings with receive and secure pin 27 and the formations such as plug 29 of an end of spring 28.
On described main body 26, wear the hole 26b of large diameter hole 26a and minor diameter, in this large diameter hole 26a, can hold pin 27 with being free to slide, simultaneously hold locking-type plug 29, utilize the end of described plug 29 sealing large diameter hole 26a in the mode relative with described pin 27 rear ends.Between described pin 27 and plug 29, be provided with and form the width L1 that sets the gap.In addition, the other end of large diameter hole 26a is communicated with small diameter bore 26b, makes the tip portion 27a of pin 27 run through small diameter bore 26b and described top is stretched out from main body 26, contact with the top of the limitation part 17c of described second bar 17.Form flange 27b at the central part of described pin 27, and by contacting, the stretching out of banking pin 27 with the stepped part 26c that is formed between described flange 27b, large diameter hole 26a and the small diameter bore 26b.And, in large diameter hole 26a, on the pin 27 between described flange 27b and plug 29 outside embedding spring 28, and the loading force pushing pin 27 by spring 28 so that its stretch out from main body.
Therefore, in described limiter 25, utilize the described width L1 that between pin 27 and plug 29, sets to determine the stroke of pin 27.Because width L1 is small value, therefore, determined in the past that the operation of stroke needed spended time, and operating difficulties.At this, as shown in Figure 4, utilize near main body 26 sides described flange 27b, in other words, on the bottom sides of large diameter hole 26a, have the structure of small diameter bore 26d, can carry out the travel settings operation of pin 27 at short notice simply.
Promptly, when the assembling of limiter 25, from small diameter bore 26d, the hard wire rods such as steel of diameter L1 are inserted in the main body 26, in main body 26, hold pin 27 and spring 28, described wire rod is arranged between the surface (left surface of Fig. 4) and stepped part 26c of the tip portion 27a side of flange 27b, and stride across under the state of tip portion 27a at two wire rods, by squeezing into plug 29 insertions or screw thread are fixed in the large diameter hole 26a, be under the state that plug 29 is not pressed into state, after plug 29 being held be fixed in the main body 26, when choosing wire rod, loading force compressing pin 27 by spring 28, thus can between the top of the rear end of pin 27 and plug 29, obtain to have the width L1 gap of (its width equates with gauge or diameter of wire).Therefore, can easily set the stroke of pin 27.In addition, when being installed in limiter 25 on the housing 2,, thereby make it simple in structure by the internal surface obstruction small diameter bore 26d of the mounting hole that is formed on the limiter 25 on the housing 2.
By described structure, when engine start, because the centrifugal force that acts on the speed regulator equilibrium block 11 is less, therefore, making a concerted effort of the loading force of the loading force of 22 pairs first bars 16 of spring and 21 pairs second bars 17 of spring greater than the extrusion pressure of the contacting part 16b16b of 13 pairs first bars 16 of slide mass, first bar 16 is under the state of the limitation part 17c of contact second bar 17, in Fig. 3, with governor arm axle 18 as rotating fulcrum to counterclockwise rotating, thereby form the state of pin 27 of the limitation part 17c contact limiter 25 of described second bar 17.That is, form first bar 16 and pass through the state of the loading force of spring 22, and form the state of controller bar 19 that make to the increment side shifting of fuel feed to the rotation of fuel increment side.Therefore, be easy to carry out the starting of motor.
Like this, when starting, fuel feed is set in rotation by the speed setting bar 20 that undertaken by regulator handle, set the rotation of speed setting bar 20 by described rotation, by spring 21, so that first bar 16 is rotated to the increment side, so that limit the rotation of this first bar 16 by limitation part 17b17c.
In addition, state by the fuel feed increase, follow the increase of engine speed, the centrifugal force that acts on the speed regulator equilibrium block 11 increases, when reaching the setting rotating speed, the loading force that first bar 16 overcomes spring 22 rotates to reducing side, and is maintained at the extrusion pressure of described slide mass 13 and the position of the loading force balance of described spring 21, thus motor realization normal operation.
When running well, when increasing etc. former because of load thereby the rotating speed of motor is reduced greatly, at first, by rotating speed reduce speed regulator equilibrium block 11 is moved, slide mass 13 also moves, so that first bar 16 increases the side rotation to fuel, thereby form the limitation part 17c and limiter 25 state of contact of second bar 17.At this moment, under the situation that load increases and then rotating speed reduces, limitation part 17c forwards promotes limiter 25.Therefore, described pin 27 overcomes the loading force of spring 28 and slides, and first bar 16 and second bar 17 forwards rotate width L1.Rotation by described first bar 16, controller bar 19 is further to the increment side shifting, so that the delivery volume of fuel is than generally many, in the limit that does not produce black smoke, improve rotating speed, viscosity under the low speed state when high load etc. increases, and keeps rotating speed under the flame-out situation and is promoted to the setting rotating speed not producing.
As mentioned above, speed regulator 10 has adopted governor arm 15 and limiter 25, under the lower state of rotating speed when engine start etc., with just often compare, increase so that be easy to starting to the fuel feed of fuel-injection pump, follow the increase of rotating speed, reduce fuel injection amount with established amount, to arrive normal fuel feed, if because of load waits rotating speed is reduced, then the mobile increase fuel supply by speed regulator equilibrium block 11 is to increase to the rotating speed of setting, under the situation that load further increases, the pin 27 of limiter is slided, and then increase fuel so that rotating speed is risen.
In addition, the air suction efficiency of diesel engine and mechanical efficiency have the characteristic that the rising because of rotating speed reduces, and under the certain situation of fuel injection amount, can produce black smoke because of excessive fuel when high speed.Therefore, Fig. 5～structure shown in Figure 8 has the automatic control characteristic of fuel injection quantity, so that in speed regulator 10, from the direction continuous control fuel injection amount characteristic of low speed to the high speed zone along the emitted dose minimizing.
That is, between first bar 16 and second bar 17 spring 23 is set, this spring is as the elastic member with two spring performances.This spring 23 is formed by nest spring (two torsion spring), and its spiral part 23a23a is positioned at its ground, both sides configuration up and down in the mode of clamping first bar 16, is configured in compactly between first bar 16 and second bar 17.
The engagement portion is along both direction, and the spiral part 23a23a from described spring 23 stretches out in tangent direction roughly.Extend to first bar, 16 sides as straight section 23c23c the engagement portion of one side, the tip portion of these straight sectioies 23c23c respectively along upper and lower to bending, and insert from both sides up and down and to be arranged on the patchhole 16d16d of first bar, 16 middle parts.Therefore, a side of spring is fastened on first bar 16.
In addition, extend to the limitation part 17b side of second bar 17 as the straight section 23b23b of " コ " word shape the engagement portion of opposite side, and the middle part of described straight section 23b23b is with " く " the word sigmoid shown in the plane and form curved part 23d.The inboard of the convex side contact limitation part 17b of curved part 22d, and tip portion is fastened on the pin 35.
Therefore, the structure that present embodiment adopts is: the part of the straight section 23b by flexural spring 23 is provided with two different loading sections of spring performance, so that can form elastic member compactly on a spring 23.These loading sections are carried out different loadings set, the loading section with first spring performance is made of described spiral part 23a23a and straight section 23c, straight section 23b, thereby can increase fuel feed when starting.On the other hand, the loading section with second spring performance is made of described curved section 23d, thus the minimizing of the fuel feed in the territory that slowly runs in can realizing.
As Fig. 9 and shown in Figure 10, described pin 35 is configured in the opposite side of the 17a of bearing portion with the limitation part 17b of second bar 17, passes the patchhole that is opened on this limitation part 17b slidably, and prevents that by the fastening piece 36 that is made of E ring etc. it from deviating from.The base portion 35 of described pin 35 is with the planar formation of hemisphere, and is arranged on the side of first bar 16, so as can be formed on first bar 16 midway the contacting part 16e of side dock.
Periphery at the middle part up and down of described pin 35 forms necking part 35b, the length that makes necking part 35b than the thickness of slab of limitation part 17 long so that their poor L2 as the stroke of pin 35.Therefore, utilize the thickness of the step position of necking part 35b or secure component 36 can adjustment stroke, this necking part 35b have formed and has sold 35 sliding stroke configuration part.
In addition, on described pin 35, form the diametric slit 35c that extends to base portion 35a side from its top, the top of described curved part 23d (straight section 23b) make the width of this slit 35c bigger, so that can be inserted among this slit 35c in slit with moving freely than the diameter of the straight section 23b of described spring 23.And, under the state that in advance top of described curved part 22d is inserted among the described slit 35c, to sell 35 necking part 35b inserts in the limitation part 17b from the inboard of second bar 17, and make secure component 36 be fixed in the tip side of the pin 35 that stretches out in second bar, 17 outsides, thereby pin 35 is fastened on the limitation part 17b, and the opposite side of spring 22 is fastened on this pin 35.Because pin 35 is configured in the opposite side with the 17a of bearing portion of limitation part 17b, so can easily carry out this with the installation of spring 22 on pin 35.
Like this, by making spring 23 between second bar 17 and first bar 16, thereby first characteristic by this spring 23, promote first bar 16, so that it does anticlockwise rotation with governor shaft 18 as rotating fulcrum in Fig. 7, by second characteristic of described spring 23, to the 16 thruster untie-sells 35 of first bar.
Be installed in elastic member between first bar 16 and second bar 17 and be not limited to the described spring 23 that forms by torsion-coil spring, also can adopt spring with two different loading sections of spring performance, for example, can be with the spring of an elastic member between first bar 16 and second bar 17 as the curved part that does not have described spring 23, and another elastic member is as pressure spring, thereby is made of two parts.
By with upper type, speed regulator 10 has adopted governor arm 15 and limiter 25, under the state that rotating speed is lower when engine start etc., identical with the embodiment of front, the loading section of first characteristic by having spring 22 is supplied with than the fuel feed of just often Duoing to petrolift, when running well, if rotating speed speed improves, then the loading section with second characteristic by spring 22 reduces the fuel feed to petrolift.Promptly, when running well, the loading force of curved part 22d by spring 22 makes pin 35 stretch out to first bar, 16 sides from limitation part 17b, reaches balance to contact with contacting part 16e, but reducing etc. former because of load thereby rotating speed when increasing, in that second bar 17 is remained under the state of desired location, by the extrusion pressure of described slide mass 13, first bar 16 overcomes the loading force of the curved part 23d of spring 22, rotate width L2 to reducing side, so that the controller bar is to reducing side shifting.
Therefore, under the bigger situation of load, can improve viscosity, under the situation that rotating speed rises, can not reduce air suction efficiency and mechanical efficiency, and can prevent the generation of black smoke.In addition, can form speed regulator with the simple structure of compactness, thereby can reduce cost with the automatic control characteristic of fuel injection quantity.
Industrial applicibility
Because speed regulator of the present invention has adopted reducing number of components with when reducing cost Therefore simple structure and be easy to processing, has industrial applicibility.
Claims (4)
1. speed regulator, wherein, by constituting governor arm with first bar of the emitted dose of fuel metering jet pump and the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar with speed regulator equilibrium block interlock, it is characterized in that: the bearing portion with described first bar is bearing on the governor arm axle free to rotately, the bearing portion of described second bar is set in the bearing portion both sides of described first bar, at least one the bearing portion in described second bar is fixed on the described governor arm axle.
2. speed regulator as claimed in claim 1 is characterized in that, the axis hole that is arranged in the bearing portion of described second bar constitutes polygon or semilune, is coupled to this bearing portion on the governor arm axle and utilizes fastening piece to fix.
3. speed regulator, wherein, by constituting governor arm with first bar of the emitted dose of fuel metering jet pump and the rotation that limits described first bar with predetermined range and second bar that links to each other with the speed setting bar with speed regulator equilibrium block interlock, it is characterized in that: a side that constitutes described second bar with コ word shape, inserting a side of described first bar in this コ character segment rotates with restriction, simultaneously, an end of the コ character segment of described second bar can be contacted with the limiter in the outside that is disposed at described コ character segment.
4. speed regulator as claimed in claim 3 is characterized in that, an end of the コ character segment of described second bar is extended to the middle part of a side of first bar.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003294770A JP4303536B2 (en) | 2003-08-19 | 2003-08-19 | Governor equipment |
| JP294770/2003 | 2003-08-19 | ||
| JP294771/2003 | 2003-08-19 | ||
| JP2003294771A JP4197631B2 (en) | 2003-08-19 | 2003-08-19 | Governor equipment |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100926213A Division CN100422524C (en) | 2003-08-19 | 2004-07-15 | Governor device |
| CN 200410092622 Division CN1721673B (en) | 2003-08-19 | 2004-07-15 | Governor device |
| CNB2004100926209A Division CN100441841C (en) | 2003-08-19 | 2004-07-15 | Governor device |
| CN2009102619848A Division CN101761396B (en) | 2003-08-19 | 2004-07-15 | Governor device |
| CNB2006100597817A Division CN100429388C (en) | 2003-08-19 | 2004-07-15 | Governor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1584309A CN1584309A (en) | 2005-02-23 |
| CN100582458C true CN100582458C (en) | 2010-01-20 |
Family
ID=34621840
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102619848A Expired - Fee Related CN101761396B (en) | 2003-08-19 | 2004-07-15 | Governor device |
| CN200410069640A Expired - Fee Related CN100582458C (en) | 2003-08-19 | 2004-07-15 | Speed transmission device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102619848A Expired - Fee Related CN101761396B (en) | 2003-08-19 | 2004-07-15 | Governor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101761396B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5753728B2 (en) * | 2011-04-28 | 2015-07-22 | ヤンマー株式会社 | Engine governor equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067303A (en) * | 1974-12-19 | 1978-01-10 | Diesel Kiki Co., Ltd. | Fuel injection pump governor |
| GB2180371A (en) * | 1985-06-25 | 1987-03-25 | Diesel Kiki Co | Fuel injection system for internal combustion engines |
| US4913115A (en) * | 1988-06-01 | 1990-04-03 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines, especially diesel engines |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2852874B2 (en) * | 1994-11-04 | 1999-02-03 | 株式会社小松製作所 | Fuel injection device for internal combustion engine |
| CN2324295Y (en) * | 1997-02-26 | 1999-06-16 | 江苏江淮动力机厂 | Control speed regulating mechanism for throttle of diesel engine |
-
2004
- 2004-07-15 CN CN2009102619848A patent/CN101761396B/en not_active Expired - Fee Related
- 2004-07-15 CN CN200410069640A patent/CN100582458C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067303A (en) * | 1974-12-19 | 1978-01-10 | Diesel Kiki Co., Ltd. | Fuel injection pump governor |
| GB2180371A (en) * | 1985-06-25 | 1987-03-25 | Diesel Kiki Co | Fuel injection system for internal combustion engines |
| US4913115A (en) * | 1988-06-01 | 1990-04-03 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines, especially diesel engines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101761396B (en) | 2012-01-11 |
| CN101761396A (en) | 2010-06-30 |
| CN1584309A (en) | 2005-02-23 |
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