JPS58160644A - Balancer device of engine - Google Patents

Abstract

PURPOSE:To simplify the structure of a lubricating oil path and to reduce the cost by forming a string of lubricating oil paths connected to a main gallery continuously on a balancer and an extension shaft mechanism for coupling a balancer driving gear and a balancer driven gear. CONSTITUTION:A balancer is detachably disposed on the longitudinal middle portion of a crankshaft 5. The turning force of the crankshaft 5 is transmitted through gears 7. 31, 33 to an extension shaft 32 and further through a gear 39 and a pair of gears 41 to a balancer shaft 40 to be rotated, thereby to operate the balancer. An oil path 75 in the balancer case 42 has the end portion on extension shaft case 35 side connected to a vertical oil path 78, the lower end of the oil path 78 being connected through an external pipe 79 to the lower end of a vertical oil path 80 in the extension shaft case 35. These oil paths form a string of oil paths connected to a main gallery 72.

Description

[Detailed Description of the Invention] It is an object of the present invention to provide a palancer device suitable for a multi-cylinder engine mounted on a Hikiko tractor, and to make it easy to remove and remove the palancer device during piston removal work, etc. The purpose is

A conventional example will be explained with reference to the drawings. Figure 1 is a partial longitudinal side view of the 4-hook engine mounted on the Tokuta.
．． 3.4 indicates the center of cylinders j11 to 4, respectively, and 0
-0 indicates the center of the crankshaft 5. A balancer drive gear 7 is attached to a part of the koji which has a constant 7-wheel drive gear 6 on the crankshaft 5 extending in the longitudinal direction of the vehicle body.
The output is transmitted to the driven gear 10tI1111 via the lower parande drive connection gear 9. Gear 10q Patunde shaft 11 bite El! It is determined. Extends to the vicinity of center 4 of axis 11u turtle 4 pneumothorax (flywheel 6 or eel also reaches pneumothorax)! Pj1%--2111 thickness r of capital and medium thickness is supported by bearing post 15.16.17.18 of paranna case 12) i4. The Pakunt Quait 2o is installed symmetrically with the center of the blood flowing in the direction of engine #N vibration, and the bearing boss 16, l 7111 axis I 171 is located below the turtle 2 air and below the 3 air air. Minute and bearing boss 1
7.1g It is formed at the shaft 11 portion of the arm.

In the ship 2 Tsumugi i, which is a partially notched bird of 1i1- - U arrow omitted - 11-m is a vertical center drawing with the crankshaft end o-o a, and the two Bakunde shafts 11 They are arranged symmetrically with the center thin B-1 in between. From the upper jaw side of the balun t case 12, the 75' sleeve 2o is centered horizontally outward (center @ll-mm and anti-λ1ili), and the flange ν2 (lport 21K
) The bottom 111g1iikK of the cylinder busic 22 is constant. Block 22 Hiro 7 Kun 9201IX Enjoy the protrusion s28 that protrudes outward from the fixed part, and the bottom 1i of the protrusion s23
Both upper ends of the iK oil μ pan 25 are fixed. Oi〃
On the upper part 27 of the pan ZStD, a 70-tone voice bracket 28 is fixed. Therefore, the upper part 27
It is necessary to increase the rigidity of the ball, but since the 7-kun 12G protrudes toward the hook, the upper part of the ring 27 becomes a noodle and its own rigidity is low), so @1- As shown, a rib 30 with a large ring W is provided at the upper end of the oil pan 25 to reinforce the on-vehicle 1i121.

The above is the structure of the conventional example, but this structure has the following problems. First, the two one-tunna shafts 11 are the engines. Since the case 12 is longer and larger, the length of the remaining body increases. Also, because the paranna shaft 11 is inserted into the bearings of the bearing bosses 15 to 58 during assembly, the outer diameter of the Quay 2G is small and the bearing inner diameter - D8 is small, so a comb is required.
Therefore, it is necessary to control the weight properly), which increases the length of the shaft 11 and passively makes it even larger. Furthermore, there are the following problems with piston removal work. In a tractor engine, remove the paper amount of oil pan 25 and remove the piston from below!
! If it can be removed, it will be difficult to work, but with the structure of -1-, the wire shaft 11 and case 12 are long, and the large rib 3o of -W is below the weight 20 and Ill and case 12.
Since it extends out to @, it is possible to remove only -11 and case 12 downwards. Therefore, @11 and case 12 get in the way and the connector tender bolt (not shown) and rod cap can be removed. It becomes impossible to remove J j+
, it becomes impossible to remove the piston. Therefore, noodles 11Q (
When performing a piston removal workshop on a tJ engine, it is necessary to remove the clutch and transmission and separate the entire engine, which is extremely expensive.

This J1 Akira is equipped with a passive in the ik1 section of the engine's kukunku shaft in the direction of the 1st direction in order to carry out the control of the Jokifu J4 warehouse.
It is k so that it is connected to kkIk, and the third...
According to the theory according to jI810, the following is true.

In 3-10-i, the number 1 is attached to each part corresponding to each part in 1 and 2-.In 3wJ, 1a to 5aij are the bearings of the crankshaft 5. So, each Qi - center 1
~4 to 7 tweewheel 6 inert #I*boat bearing 1
IIIA is affixed with the code l heat ~ 4 hatake respectively・Axis 5
! 'f! Between J51 Hatake and 7 Raihoi fi/6, the gear 33 on the extension shaft 32 is connected to the 41st part of the crankshaft 5 through the idle gear 31
They match. The extension shaft 32 extends parallel to the crankshaft center 0-0 below the shaft 111, and the bearing h1
The lower portions of M and 2M near both ends are supported by the bearing portion 36%87 of the extension shaft case 36, and the thick shaft portion 36.
The gear 33 and the other extension shaft gear 39 are added 1iii and 1 to the part of the thread protruding from the shaft 37, respectively. The gear 39 meshes with a fixed follower gear 41 at one end of the passive 40 of the lower blade. Axis 4o is about $! Crankshaft center 0-
It extends parallel to the gear 41 and is supported by the bearing 11148.44 of the fIA island or valance case 42. Parander A-45 is double shaft 5e female 4
The chest axis of 3.44 is affected by 4G11 minutesKjl, and the center of balance force is aligned with the center of the engine. weight 4
The outer pole of 5 is also larger than the inner &D of bearing 1s43.44,
Bearing s43.4 is the shaft 4o having this large diameter weight 4s.
411C - case 42 to allow both bearings 4
m, ii of the middle piece of 44 - make the mating yarn 46 into a lump and divide it
1.It has a similar structure. 47.4jlU4ya39.
This is a Nando to keep 41 constant.

movement akAa) y-g arrow abbreviation - As shown in the 4-thin line, a pair of parangs are attached to the axis 40, 4G41 en Vn's ikm central plane 1
5-g and symmetrical Kid, both shafts 4υ, 40 gears 41~. 41 are interlocked with each other. The pure major axis 32 is j
The right arm of k4IfJ41 is located above the shaft 4o, and is located 8 m away from the extension shaft 32 and slightly above the center -B-B of the shaft 49#i of the idle gear 31. The idle gear shaft 49 is branched to the extension shaft case 3b.

The outer IAJ number 7 kun v50 of the upper engagement portion of the upper end 5#i of the case is fixed to the lower aX of the cylinder block 22 by a multi-plate bolt 51).

The inner part of the case 42 is also fixed to the lower part of the lubricant hook 22 by a multi-plate bolt 52 attached from below. The total amount wAsl was applied to the lower part of the oil pan 25' by multiple companies of 53 companies, 54 is the trajectory of the propeller shaft 7), and the bottom of the connecting rod. In the case 42, the bearing portions 43, 44 (flying pins), and both shaft mounting portions 4
1llk57 connecting 3.44, S8, large koji 59 and the bottom that go inside from above and below! 1160 (ji36N), and the rib 61 etc. that connects the middle part of the upper end of @j57.58 -
Eh, it can be moved by the dowel hook 46, and the #Il female part of the base 42 is mutually secured by the heavy-steel portoro 2 attached to the rib 61 and the bolt (indicator) at the bottom of the case. Ru.

body, a joint 63 connecting both bearing parts 36.3K, and a rib 64. It honors Is. Joint 63#i, extension shaft 32
It is located below the rib 64 bearing axis 32Kjt and is located at the center @1I-B and the reflection axis, and the rib 65 & i bearing*s
i, a7. i - A rib 67 extending from the axis 32 to approximately the angle 8
, @Ji's tip 111glim is connected.

Seen from above as ksths-, approximately the same distance as the rib 64 from the center 11i11-B of the rib 4i1ij,
A sharp 7o is formed in the case 36 by the prongs 65, 67, 68 and the extension shaft 32. 70Hiro The area is large enough to allow the piston extraction work described later, and it is also m.
The center of the cylinder passes through the center of the cylinder.

Next, I will explain kII Nametsumugi Tsuzururo. Brass 4-7
The 1/Ii cylinder booklet 22 is equipped with a tomo tsumugi ayu, the upper end of which is connected to the main gear rally 72, and the upper end is connected to the l1liit oil #&73 in the tow drop case 42.

As shown in Figure 6, the stone 6, which is the cross section of the plow 3, is located in a part of the long axis case ← opposite to the side 11!7 of the oil passage 73 side s7. The inside thereof is connected to a horizontal oil passage 76 extending parallel to the passive shaft 40 . The Tsumugi M75 has an oil passage of 76.7'l perpendicular to it. &t1 connection 76.7
7 extends horizontally in the bearing part 43, 44 and is connected to both passive shafts 4oa) 4i - 43', 44'. The oil passage 75 is connected to the case 36 of the oil passage 78, and the lower end of the oil passage 78 is connected to the lower end of the oil passage 80 in the extension shaft case 35 via an external pipe 79, which will be described later. The pongee M80 extends below the bearing part 37 via the horizontal oil passage 81 in Figure 5, and the oil passage 81k connects to the bearing in the bearing part 37. One end 7 of 183 is connected to the pongee that opens, and the other end of the oil passage 83 is connected to the line bearing part 36.
It is connected to an overlapping oil passage 84 that connects to the inner bearing. Each of the oil passages in the Upper Age is formed by multiple holes, one for each blind one, and one for both vehicles.

As shown in Figure 7 of the cocoon, which is an enlarged section of the stone &- vIm cross section, one end of the pipe 79i1 is placed at the bottom of the paranoid couce 42, and fu! , Case sS, as in Liao 8 Pavilion, where the upward straight part of I@ is inserted into the lower part of the oil passage 80 via oil A/C β 0. -s#i idle gear s of the oil passage in
An oil passage 92 extending near the gear is formed to form an oil passage 3.
is connected to the gear island 1 via the oil passage 93 in the ysp gear shaft 94.
Connect the axis ftK of i. This is a 95-year-old 4th grade pot.

fI! Explain its purpose. One rotation power gear of crankshaft 5 at Hosobatake? , 81, 331 to the extension shaft 32], and is transmitted to both passive shafts 40 via the gear 39 and the pair of gears 41. In this way, since the shaft 40 acts as a thin plate, the force exerted by the balance weight 4& is obtained, and engine vibration is prevented. During this operation, oil that has flowed from the main gear rally 72 of the ladle 4- through the oil passage 71 to the oil passage 73 flows from the oil passage 75 of 4-', in'1llH11ti. Oil road? No @ in S
42. I; From t411yFLhji78, 80tC of oil flows into the long shaft cous 35 through pipe 7, and the tit
Sea oil passage ax, 8 layers, extension axis s through 14a%84
2. Immerse the bearings at both ends in hot water. Oil is also supplied to #Ia- oil passage 92, and is supplied to idle gear 3 via oil passage 93.
Axis 5 of 1! The oil is also returned.

When performing piston removal work, first m5si - β) 8
4, remove the mass from the oil μ pan snow sI, go through the opening 96 that forms the opening 96 at the bottom of the engine, remove the bolt 52 shown in Figure 4, and remove the passive shaft of the 3- Remove the passive case 42 downward along with 40 and 41. Next, pass through the space where the case 42 was installed and remove the 2* tz+ and 3* bolts (the bolt 96 of the connecting rod 95 and the cap 97 of 11). Remove the rod 9s and the piston.Remove the rod bolt 96 and cap 97 of the 141st cylinder (1) downward from the v70 of the extension shaft case 35 in Figure H5, miss the window 70, and remove the Extract the connecting rod 9s and piston in the same way. Do the same thing with the outer thread of the piston of the 4 keyan (4), or remove the #1 #i charm of the passive case 4g - the car is the case 42. It is also difficult to do the # of off-slope.After completing the fixing, attach the 9 piston to the cylinder, install the cap 97 and bolt 96, and fix the case 42 in its original position. ,l! % when removing the passive case 42 downwards! Is it necessary to remove all's pipe 7 from Ronrohata O, pie 271
1 is at the top of the vha so that it can easily be pulled downhill,
The pile removal vehicle is also BM. Also, the lifting platform to which the case 42 is attached should also be placed below the pie 179! You can simply connect the oil line 80iC1lll at Shikudasha.

According to the above-mentioned nine-threat, there is a passive drive gear in the crankshaft of a multi-engine engine as shown in Part 3, so for example, the applicant's English -14
Passive 1llI to Kukunku axis middle view S like 1790 amount
Compared to the case where an I gear is installed, the crank-5's 11)-movement is faster! It suppresses the transmission of noise to the first runner, effectively suppressing the noise caused by gear backlash.

Also, since the extension shaft 32 is connected to the passive shaft 40 via the driven gear 41,
Compared to the case where the extension shaft (shinkanshaft) is made into a cylindrical shaft and the internal spline part of the armpit hook shaft is made into a passive shaft KiiLM like in 7Ji No. 6, it is better to adopt a single gear structure as in the present invention. The strength can be increased.According to the book, the palanquin (shaft 41), IIF construction 4) 45, case 42 fathom)
was installed on a part of the longitudinal side of the engine's crankshaft, and an extension shaft (shaft 8, case 3h1, etc.) was placed at one end of the 7.41 engine *IjK1, so the metal body was constructed as shown below. It is possible to make the team members more compact. In other words, since the two passive shafts 40 are supported and #Ii%fh vibration force from the weight 45 is applied, it is necessary to make the dimensions and length relatively large, but the extension shaft case 35d one fj & jk3! ! , and since no power is applied, the dimensions and weight are small, and in the present invention, the relatively large passive case 42 is placed only in the engine, and the engine
Since the long shaft Gumus 3S of Hirokokage is placed in the part, a large passive case is used as in the conventional case to cover almost all of the engine.
l1jkJ of the metal body structure compared to the case where it can be arranged like
It will be difficult to achieve compactness.

Furthermore, in the *Invention K-, the passive was miniaturized as mentioned above and removably installed at the engine connecting part, so it was possible to easily remove the passive downward without disassembling the engine metal body, and the engine Piston removal work for medium NBS can be easily performed. Also, regarding the piston above the extension shaft 32, l [7
By providing 0 (Fig. 5), sampling work can be easily performed through the holes * and *7. Note that the extraction work can be performed by removing the case 35, or the case 35 can be removed.
Since it can be made smaller, it can be installed in a position where it will not interfere with the sampling process.

Also, even though an extension shaft mechanism is provided separately from the passive, the oil passages of both are connected via, for example, the pipe 79 in Fig. 7, and this series of oil passages! Main gear rally-72 in Figure 4
Since the oil passage for the parump and the oil passage for the extension shaft are connected to the
Compared to K-connected bridge abutments, it is possible to simplify the structure of the oil channel and reduce the number of masts.

In addition, in order to easily remove the balunde, the driven gear 41 may be placed below the extension shaft gear 39 as shown in FIG.
Alternatively, it is preferable to adopt the layouts shown in FIGS. 9 and 1110. In FIG. 9, the centers of both pakunde gears 41 and the centers of the extension shaft gears 33 and 39 are lined up on the same horizontal plane CC.

In No. 1011, the extension shaft gear 3 is directly connected to the parande drive gear 7, eliminating the idle gear, and the driven gear 41 is located directly below the extension shaft gear 39 as shown in the bridge abutment in Figure 114 and in Figure 11M. . In order to facilitate the removal of the passive, the center of the driven gear 41 is extended (from the center of the shaft gear 39) also generally downward (including at the same height and slightly above),
In other words, it is preferable to locate it near the bottom of the oil pan.

[Brief explanation of drawings]

No. 11m is a partial view of a longitudinal cross section of the conventional example, Kame 2 is a partially cut-out shoe in Fig. 1 - U arrow view, and No. 3 is a vertical cross section of the dormitory paste example of the present invention - 1 Fourth factor is the three causes of movement■-1*Visit Rakukaku, gig
is 183N's marma arrow view part 11, lI@llhiro m1l
l Ilg) l-111NIm Majority E, 71st tt
111111el-1 cross-sectional partial view, No. 811t [4th garden's Hibiki-Shiban stomach part 1, Figure 9, and 1110 are E diagrams of different 11 hooks. 5... crankshaft, 7.
-Palande drive gear, 32...extension shaft, 41...N
P runner driven gear, 42... Bakunde case, yi,
sl-・-oil passage (part) Patent applicant Yanmar Dial Co., Ltd. Figure 4 Figure 5 Figure 6 Figure 7 Figure 9 Figure 9

Claims (1)

[Claims] A paranna drive gear is provided at the end of the crankshaft of the polypneumothorax engine, a balancer is removably provided at the middle part of the crankshaft of the engine in the longitudinal direction, and the driven gear of the paranna and the balancer drive gear are connected by an extension shaft IIm. , an engine parallax device in which a series of lubricating oil passages connected to the main gear rally are continuously formed in the extension shaft machine and the parancer.