JPS58200831A - Manufacture of damper for preventing twisting vibration - Google Patents

Abstract

PURPOSE:To reduce the number of processes and decreases a manufacturing cost, by a method wherein, a pair of innertia mass segments and a mounting piece located between said two segments are coupled together in one body through vulcanizing and adherent process on a rubber product, with which the gap therebetween is filled in the case of a viscous rubber damper. CONSTITUTION:The damper stated in the title has a pair of inertia mass segments 1A and 1B located on both sides of a mounting plate 4 in a manner that the plate is positioned being held between the segments. Notches 20A and 20B are provided in edge parts positioned on the peripheries of the segments 1A and 1B, and facing each other so that a C type ring 21 can engage with the notches. The two segments 1A and 1B are coupled together by a coupling cylinder 22 fitted around the outer periphery thereof. In this constitution, with partition members 28 and retainers 29 located along inner peripheries of the segments 1A and 1B and between both surfaces facing each other, respectively, an assembly of the segments 1A and 1B and a mounting body A is placed between molds 26 and 27. Annular continuous recesses 30 formed along the inner periphery side of the segments 1A and 1B are filled with rubber fabrics 5a and 5b, respectively, and the absove-mentioned components of the assembly are simultaneously integrated in one body through vulcanizing and adherent process on said rubber fabrics.

Description

Detailed Description of the Invention The present invention provides a damper for damping torsional vibrations applied to rotating shafts such as internal combustion crankshafts, camshafts, or drive shafts to prevent accidents such as breakage of the rotating shafts. This is part 5, which concerns how to do so.

In recent years, what is called a viscous rubber damper has come into use as the above-mentioned damper. An example of the conventional product will be explained with reference to FIG. In FIG. 1, a generally annular piece 1 is arranged in a pair of annular divided pieces 1A, 1 arranged in the axial direction.
It goes up to B and is combined. Each of these divided pieces 1A, 1B
is a small space facing surface 2A, 2B that is inwardly facing the phase n in a direction parallel to the axial direction with a small distance and continuous in the circumferential direction, and an I at a position inside the small space facing inwardly 2A, 2B.
The two divided pieces 1A, 1 are shaped so as to have large-space opposing surfaces 3A, 3B which face each other at a distance larger than the above-mentioned distance and are continuous in the circumferential direction.
A recessed portion facing radially inward is formed between the portions B. In the recess between these divided pieces 1A and 1B, that is, between the respective opposing surfaces, the outer circumferential end portion is the small-spaced opposing surface 2A,
A substantially disk-shaped mounting plate 4 is inserted between each of the divided pieces 1A and 1B with a gap between them.
Annular rubber bodies 5A, 5B are arranged between the large-spaced opposing surfaces 3A, 3B and each of the front and back surfaces of the mounting plate 4, respectively.
It is arranged coaxially with rubber body 5A.
, 5B, the large-spaced opposing surfaces 3A, 3B, and each surface of the mounting plate 4 are bonded together. Mo, the front two car split pieces IA,
1B is connected and fixed at its outer periphery by means of fixing means such as caulking 6, and the opposing small round positives 2A, 2
A viscous fluid 7 such as silicone oil is filled in the dark gaps between B and the front and back surfaces of mounting &4.

In the above-mentioned viscous rubber damper, if the mounting plate 4 is fixed to the rotating shaft 8 such as a crankshaft, the shear resistance of the viscous fluid 7 and the rubber bodies 5A, 5 can be reduced.
The initial torsional vibration is absorbed by the elasticity of B, and the secondary vibration due to the resonance of the rubber is absorbed by the shear resistance of the viscous fluid 7, which provides a much better torsional vibration damping characteristic compared to ordinary rubber dampers. C is known to show
There is.

By the way, in order to make the above-mentioned damper V, the rubber bodies 5A and 5B are attached to each side of the mounting plate 4 and each divided piece 1A,
It is necessary to adhere to the large-spaced opposing surfaces 3A and 3EW of 1B. In this case, the adhesive part needs to have a strong contact force 413 to withstand large repeated loads, so generally, an isocyanate-rubber mixed adhesive is used to vulcanize the rubber bodies 5A and 5B. It is common to vulcanize and bond at the same time. Conventionally, in the process of vulcanizing and bonding the rubber bodies 5A and 5B, the following two-stage T-culm was employed. That is, first, the mounting plate 4 is positioned horizontally as shown in FIG. Vulcanized rubber fabrics 5a, 5b are placed, and an adhesive 1 is placed between the rubber fabrics 5a, 5b and the surface of the mounting machine 4.
1 is interposed between the press base 12 on the lower side and the press ram 13 on the L side, and pressurized and heated to form the rubber dough 5a.

The adhesive 11 is vulcanized at the same time as bb is vulcanized. In Figure 2 (A), 14 is an extra rubber retainer. The leprosy after the first vulcanization adhesion is thus completed is shown in FIG. 2(B). Next, as shown in FIG. 2(C), 3B is brought into contact with the large@pair l1nJ surface 3 of the divided pieces 1A and 1B via the adhesive 14 on the surfaces of the rubber bodies 5A and 5B, and in this state, the press base is attached. ! ll! 12 and the press ram 13 to vulcanize the adhesive 14 by applying pressure and heating,
Rubber bodies 5A and 5B are adhered to divided pieces 1A and 1B. In Fig. 2(C), 15.16 are divided pieces IA and IB.
There is a mold for holding the relative position of the mounting plate 4 and the mounting plate 4.

As described above, when building the jaws of a conventional damper, vulcanization was performed twice to connect the rubber body 5 and 5B, which required a large number of man-hours and resulted in high work costs. Furthermore, if we compare the first vulcanization bonding IIR and the second vulcanization bonding, we can see that during the first vulcanization bonding, the rubber fabrics 5a, 5b and the mounting plate 4 are directly attached to the mold 9.10. In contrast, during the second vulcanization adhesion, the rubber body 5A
, 5B directly mold 15.16, press ram 13, gutter 1
2, the heat received by the vulcanized adhesive part is reduced, and the first vulcanization causes the rubber body 5 to
Since A and 5B themselves have already been vulcanized to some extent, the second
Rubber bodies 5A, 5B and divided piece IA by vulcanization adhesion for the second time,
The bonding strength with 1B is determined by the first vulcanization adhesive installation &
4 and the rubber bodies 5A and 5B are inferior in bonding strength.

This invention has been made in view of the above circumstances, and it is possible to perform vulcanization bonding between the rubber body and the mounting plate and vulcanization bonding between the rubber body and the inertial mass body segments at the same time, thereby reducing work costs. It is an object of the present invention to provide a method of manufacturing a damper in which the bonding strength of both bonded parts is the same.

In other words, the damper manufacturing method of this invention has a pair of inertia properties 1
The body division pieces are connected by fitting a short cylindrical connecting cylinder on the outer circumferential side thereof, and before the connecting cylinder is fitted, the body division pieces are connected to the opposing surfaces of the inertial integral valve division pieces at a small distance. Make sure that the gap between the plate and the plate surface is open at the outer periphery -1\,
When adhering a pair of rubber bodies to the large-spaced inner surfaces of the integrally divided pieces and the mounting plate, one inertial one-piece divided piece and the mounting plate, and the other inertial one-piece divided piece. are arranged coaxially in that order, and a partition member made of an elastic material is arranged along the stepped surface of the wall between the small-spaced opposing surface of each of the inertial mass body division pieces, and the size of the inertial mass body division piece is adjusted. A continuous annular recess surrounded by the spaced inner surface, the root surface of the mounting machine opposing this, and the partition member is filled with rubber dough, and the image-sensitive mass body valve particles are heated and processed from both sides of the recess. ,
After vulcanizing and adhering the rubber fabric to the large 1Ill positive inner surface of the inertial mass body segment and the plate surface of the mounting plate in a wj-to-wj direction, the partition member is attached to the small-spaced opposing surfaces of each inertial mass integrated valve particle. It is characterized by being pulled outward from the WaII between it and the mounting plate.

The method of the present invention will be explained in more detail below with reference to FIG. 3 and subsequent figures.

FIG. 3 shows the overall structure of a damper to be manufactured by the h method of the present invention. In FIG. 3, the g! Regarding the element (, the same symbol is used, and the explanation thereof can be omitted.

In Figure 3, the resentment property of the pair of C1 is i1!11A1
B is made to have a substantially symmetrical shape with the mounting plate 4 as the center. That is, in the 11th example, the outer peripheral end of the inertial integral valve segment 1A of -h is the axis Ii! 15-direction ＼ extended to the outer peripheral end side of the mounting plate 4 and other indignant ant body fragments 1B
The damper shown in Fig. 3 has a shape that surrounds the outer periphery of the t! ! : The Iit body divided pieces 1A and 1B are shaped so as not to surround the outer periphery of the mounting plate 4 on the @ side. Step-shaped notches 2OA and 20B are continuously formed in the corners of the outer peripheral end surfaces of the image quality v4I body division pieces 1A and 1B on the sides close to each other, and these notches 2OA and 2
A notched annular C-shaped ring 21 surrounding the outer peripheral end of the mounting plate at intervals is fitted into 0B. Further break-in: The outer peripheral surfaces of the 1-leg I-body division pieces 1A and 1B and the outside F of the C-shaped ring 21! A connecting cylinder 22F having a short cylindrical shape is fitted on the fourth surface. Both ends of this connection 8122 in the axial direction are bent along the corners of the inertial mass body division pieces 1A and 1B, thereby connecting the image quality mass body division parts 1A and IB. The bent portion of the connecting tube 22 and the discreet female body division piece IA.

An O-ring 23 is inserted between the corners of 1B.

In addition, the small spaced opposing surfaces 2A of the carnal mass body division pieces 1A and 1B
, 2B and the stepped surface 24A between the large-space pair inner surfaces 3A and 3B.
, 24B are the opposing surfaces 2A, 2B in the example of FIG.
However, in the example shown in FIG. 3, it is an inclined surface that continues smoothly from each opposing surface 2A, 2B; 3, A, 3B. Furthermore, in 8I3 causes, 25&! As will be described later, this is an escape route for the rubber fabric.

Next ←: The method for manufacturing the damper shown in FIG. 3 will be explained with reference to FIGS. 4 to 7.

First, as shown in Figures 1 and 4, a pair of inertial mass body segments 1A and 1B, which have been previously processed into a predetermined shape, and the mounting plate 4 are placed in a predetermined position between the lower mold 26 and the upper mold 27. . The lower mold 26, the inertial Wii body division piece, the mounting plate 4, the emotional social body division piece 1A, and the upper mold 27 are stacked in that order from the bottom. 1 Here, each inertia il 1 body division piece 1Δ, 1B has small-space opposing surfaces 2A, 2B and large-space opposing surfaces 3A.

There is a partition S5 shrine 28 on the step surfaces 24A and 24B between 3B and 3B.
will be set up. This partition member 28 is made of an elastic material such as rubber or synthetic resin, and is made in advance so that its cross section forms a smooth slope along 24B toward the stepped surface 24, as shown in detail in FIG. It is made to have a notched ring shape as a whole, and a drawer handle part 2B8 is integrally formed at one end thereof. This drawer handle part 28A passes through the dark gap between the small spaced opposing surfaces 2A and 2B of the inertial mass body division pieces 1A and 1B and the mounting & cow.
Extended to the outside. Inertial mass body division - piece 1A
, 1B and the mounting plate 4, a pair of substantially semicircular presser plates 29 are provided as a whole in a portion other than the portion occupied by the drawer handle portion 28A. fFIll is formed to form a ring. The second presser plate 29 is for preventing the partition part $1128 from coming out outside, and its inner peripheral edge is in contact with the outer peripheral edge of the cutout member 28, and the outer peripheral side edge is inertial mass. They are arranged so as to extend outward from the outer peripheral ends of the body division pieces 1A, 1B. Such a planar arrangement of the partition member 28 and the presser plate 29! The relationship is shown in FIG.

With the partition member 28 and the presser plate 29 arranged at the predetermined positions as described in 1, the large-space opposing surfaces 3A, 3B of each inertial mass body segment 1A, 1B and the front disposed portion t12F, ,
b) Fill the annular continuous recess 30 formed by the plate surface of the mounting plate 14 with the rubber fabrics 5a and 5b. That is, as shown in FIG. 4, the upper mold 27 and the lower mold 26
The unvulcanized rubber fabrics 5a and 5b are charged in advance into the rubber fabric introductions 31 formed in the respective areas, and the upper ram 32 of the vulcanizing press machine is directed toward the vulcanizing press L-I press plate 33. By lowering it, the screws 1-33 press the rubber fabrics 5a and 5b in the rubber fabric retainer 31, and the upper mold 27
and a rubber fabric insertion path 3 formed in the lower mold 26 so as to be continuous from the rubber fabric retainer 31 to the recess 30.
5 through U [! ] The rubber fabrics 5a and 5b are filled into the section 30. In addition, the inertial mass body division h1A in this recess 30
, 1B's large spacing opposing surfaces 3A, 3B surface elevation mounting plate 4
A vulcanizable adhesive 36 such as a mixed adhesive of R Socia King and Toru Rubber is applied in advance to several surfaces of the rubber fabric before filling. Furthermore, the surplus of the rubber fabrics 5a, 5b filled in the recesses 30 escapes to the excess rubber retainer 37 via the rubber fabric escape path 25 formed in advance in the integrally divided pieces 1A, 1B.

After the recess 30 is filled with the rubber dough 5a, bb, the filling is continued between the upper ram 32 and the base 33, and the rubber dough 5a, 5b in the recess 30 is heated by the upper ram 32 and base 33. Rubber fabric 5a, 5
At the same time as the adhesive 36 is vulcanized, the rubber is vulcanized and bonded. After the comb bodies 5A, 5B are vulcanized and welded between the large-spaced opposing surfaces 3A, 3B of the inertial mass body division pieces 1A, 1B and the mounting plate 4 in this way, the upper ram 32 is raised and Remove the upper mold 27 and lower mold 26 (the state is shown in Fig. 7(A)).
.

Next, after pulling out the Ichinaka λ machine 29 to the outside, the partition member 2
Pull the drawer handle 28A of No. 8 outward l\. tIl
, 1J part [2B is made of an elastic material, so it is made of elastic material and passes through the gap between the facing surfaces 2A and 2B at small intervals and the plate surface of the mounting plate 4 to the outside. It can be pulled out. 5. In order to make this extraction easier, I am angry @'m Fix Body'I
j nllha1A, I B wo'rh 11nilIM'
It is desirable to extend 5B to the body 5 in 4 directions l\tension ζ, thereby enlarging the gap between the 11-spaced opposing surface 2A12B and several surfaces of the mounting plate 4. The state in which the holding plate 29 and the partition portion 4428 are pulled out in this manner is shown in FIG. 7(B).

Next, as shown in Fig. 7(C), the inertia 'IIi eel body part 0
Notch portion 2 OA on the inner side of the outer peripheral surface of the body valves 1A and 1B.

20 B (: After fitting the mold ring 21 and bringing both ends into contact with tt#1, the image-sensitive mass body division pieces IA and 1B are fitted so as to surround the outer circumferential surface of the C-shaped ring 21 and the outer circumferential surface of the C-shaped ring 21. The connecting cylinders 22 are brought together 1ill!, and the O-rings 23 are arranged in a predetermined image, and both edges 22A and 22B of the connecting cylinder 22 are bent inward.As a result, the ambivalent mass body divided pieces 1A and 1
B is connected and fixed, and has inertia with the mounting plate 4! f The gap between the small space between the body dividing pieces 1 and 1B and the facing surfaces 2A and 2B is closed, and then a silicone oil filling hole (not shown) formed in the inertial mass body dividing piece 1A or 1B is formed. Do it now! By filling the gap marked with silicone oil with silicone oil, the damper shown in Fig. 3 is completed.

In the above description, the partition member 28 connects the rubber bodies 5A and 5 to the stepped surfaces 24 of the inertial mass body division pieces 1A and 1B, and the rubber bodies 5A and 5 to 24B.
This is to prevent B from being vulcanized and bonded and from contacting each other. When filling and vulcanizing (curing 1f/heating) the rubber fabric without using the partition member 28, the rubber bodies 5A and 5B are adhered to the stepped surfaces 24A and 24B or at least are suppressed. As a result, the effective distance between the mounting plate 4 and the inertial integrated valve segments 1A, 1B and the rubber bodies 5A, 5B becomes extremely short, and the twisting caused by the rubber bodies 5A, 5B. The vibration reduction effect is no longer sufficient. Therefore, in this invention, it is necessary to interpose the partition member 28.

In the above example, C is used to empty the outer circumferential side of the gap between the inertial mass body segment pieces 1A and 1B facing each other at a small distance 2A and 2B.
The mold ring 21 and the connecting tube 22 that connects the two-way tableware division piece 1 to the two-piece plate are constructed separately, but in some cases, the two types are integrally formed as shown in Fig. 8. Even if it's a crow. In other words, the incision 1122 in FIG.
, 20B, a member 39 having a protrusion 1i38 is externally fitted to the inertial integral valve segments A and 1B, and the member 3
It is formed by welding both ends of 9.

As shown in FIG. 149, the Ti cutting member '28 may be constructed by spirally winding a wire rod 40 having an angular cross section and made of an elastic material such as metal or synthetic AM. In this case, as shown in FIG.
One end of the drawer 0 is pulled out to the outer circumferential side and becomes a drawer handle 28A. In addition, in this case, as shown in FIG.
4A and 24B may be the small 1IlFa facing surfaces 2A and 2B [objective angle surfaces, but of course they may also be sloped surfaces as in the case of FIG. 4. Although the presser plate 20 is not shown in FIG. 10, a presser plate 20 is normally provided. However, depending on the case (1
Cr:) is good because the press λ plate 20 is omitted.

In the above explanation, it was assumed that the rubber fabrics 5a and 5b were filled into the annular continuous recess 30 using a vulcanizing press machine, but
- Depending on the sound, predetermined rubber fabrics 5a and 5b are placed in the annular continuous recess 30 as shown in FIG.
From this state, pressure and heating may be applied to the L section ram 32 and the base 33. In this case, there is no need to provide a rubber dough container or a rubber dough inflow path in the molds 26 and 27.
Therefore, the mold cost becomes low. In this case as well, a vulcanized adhesive such as an isocyanate-rubber adhesive is interposed between the rubber fabrics 5a and 5b and the surface of the mounting plate 4 and the large shaving surfaces 3A and 3B. Of course, there is C.

In addition, in each of the above pieces, each inertial mass body segment 1A, 1B &: Rubber fabric escape path 25 is formed.
However, by forming a portion corresponding to a rubber fabric escape route in the partition member 28 and the presser foot 29, ? [It is also possible to omit the rubber fabric escape path 25 from the mass segment pieces 1A and 1B.

As is clear from the explanation below, the torsional vibration isolation IF of this invention
According to the damper manufacturing method, when manufacturing a viscous rubber tamper, C, 1IlvA connection between the rubber body and the mounting plate, and the inertia 'f! 7711/>, where the III body division pieces and the addition division pieces are made at the same time, the number of T is small), the damper manufacturing cost is significantly reduced compared to the conventional one,
In addition, there is no difference in the thermal effect between the two bonded parts, -11, and there is no difference in the effect of the vulcanization of the method itself, so the bonding strength of both the bonded parts is the same, and other great effects can be obtained8.

[Brief explanation of drawings]

Figure 1 shows an example of a conventional torsional vibration prevention tamper.
2(A) to 2(C) show an example of the conventional damper manufacturing method shown in FIG. Figure 1Ih-W441!!3 shows an example of a torsional and anti-motion damper manufactured by the manufacturing method, and W441!!3 shows the filling and sulfurization of the rubber fabric in manufacturing the damper shown in Figure 13 according to the method of the present invention. Fig. 5 is a perspective view showing an example of a partition member used in carrying out the method of the present invention, and Fig. 6- is a diagram showing the relationship between the 51st partition member and the presser plate. The 1st plan view of the arrangement 1fIll section, 71st (A) to (C) are the 4th worst vulcanization welding @ 1st culm completion situation 4r gradually decreasing in size. Fig. iR8 shows another example of the torsional vibration prevention damper manufactured by the method of the present invention. Vertical & 1thIts, Fig. 9 shows another example of the partition member used in carrying out the method of the present invention. Perspective view, Figure l@10 is small in Figure 9.
Figures 10 and 11 show the situation in which the method of the present invention is carried out using a partition member that is used in another example. FIG. 1A, 1B... Inertial rod segment, 2A, 2B...
・Small interval opposing surfaces, 3A, 3B... Omayo opposing surfaces, 4
...Mounting plate, 5a, 5b...Rubber fabric, 5A
. 5B...Rubber fabric, 7...Viscous fluid, 22...
・Connection tube, 24A, 24B...Step surface, 28...
- Partition member, 36...vulcanized adhesive. Applicant: Hideo Aoki, attorney: Takehisa Toyota (one idiot). Figure 1 Figure 2 II Figure 3 Figure 4 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] (1) A pair of inertial mass body segments having an annular shape as a whole and arranged coaxially in the axial direction are shelled, and the image quality 1il is
The iJi body division piece has a small-space opposing surface that faces phase n in a direction parallel to the axis @B direction with a small space and continues circumferentially, and a small-space opposing surface that has the above-mentioned space at a position radially inner than the small-space opposing surface. The inertial integrated valve particles are configured to have opposing surfaces facing each other at a distance larger than that and continuous in the circumferential direction. A substantially disk-shaped mounting plate is inserted between the inertial mass body divisions C, and an annular rubber body is inserted between the large-spaced inner surface of each inertial mass body division C and each of the front and back surfaces of the mounting plate. The pair of rubber bodies are arranged coaxially with the valve cutting piece, and the pair of rubber bodies are respectively attached to both sides of the large-spaced opposing surface and the plate surface of the mounting plate, and the image-forming mass body divided piece A generally short cylindrical connecting tube is fitted to the outer circumferential surface of the panel to connect them to each other. In the process of manufacturing a torsional vibration prevention damper filled with a viscous fluid, rubber bodies Mj are placed on the large-spaced opposing surfaces of each inertial integral valve segment and on each of the front and back surfaces of the mounting plate. In order to arrive, the -10,000 emotional property i-body division pieces and the number of attachments and the inertial mass body division pieces of other forces are arranged coaxially in that order, and llI'l&! A partition member made of an elastic material is arranged along the step surface between the small-spaced opposing surface and the large-spaced opposing surface of each inertial body segment, and the large-spaced opposing surface of the inertia 'R body segment The annular continuous recess surrounded by the plate surface of the mounting plate facing this and the above-mentioned 1] cutting member is filled with rubber fabric, and the imaged mass body segment is heated and pressurized from both sides to fill the rubber fabric with an inertial mass. After simultaneously vulcanizing and welding the large-spaced opposing surfaces of the body segment pieces and the plate surface of the mounting plate, the partition member is moved outside through the gap between the small-spaced opposing face of each inertial mass body segment and the mounting plate. A method of manufacturing a torsional vibration prevention damper characterized by being pulled out.