JPS59180104A - Swaying motor - Google Patents

Abstract

PURPOSE:To prevent leakage of fluid from each pressure chamber of the captioned motor relatively rotating the first and the second members by providing seal members between the motor and a part of its contact with a cylindrical hole around the first and the second partition members, a part of its contact with the axis of the second member and also parts of its contact with the first and the second flanges. CONSTITUTION:The captioned motor is composed of the first and the second members 22, 23, the first partition member 35 together with seal members 41, 43 fitted around it, the second partition member 36 together with seal members 42, 44 fitted around it, the first and the second pressure chambers 48, 49, bearings 54, 55 and end covers 56, 57. Since these seal members 41, 42, 43, 44 completely seal round the first and the second partition members 35, 36, leakage of the fluid pressure from the first and the second pressure chambers 48, 49 to the exterior can be prevented and further, seal members 41, 42, 44 can be prevented from catching action during relative rotation of the first and the second members 22, 23.

Description

[Detailed description of the invention]

C Field of Application of the Invention] The present invention supplies fluid pressure from the outside to a pressure chamber f'' formed between the first and second members, and The oscillating motor that rotates this f/=
6 [Prior Art] A conventional swing motor is shown in FIGS. 1 and 2. The t1 motor shown in the figure of Kone et al. The second members 1, 2, the first . Second partition member 78, Chiku 1゜Second pressure chamber 12.13, Bearings 1.8, 19, End cover 2
We are preparing a 0.21 mag. A cylindrical hole 3 is formed inside the member 1 of the housing and the housing 1, which is passed through in the axial direction. The two second members, the four shafts and the first.
Second 7 lunge 5.6? The second flange 5.
6 is a shaft 4 (formed integrally therewith and fitted into the cylindrical hole 4) 1 at a set interval. Since fc≠1, a hollow cylindrical space is formed inside the cylindrical hole 3 for the shaft 4, the 1st degree, the 1st degree, the 2nd 7th flange 5.6, and 1 degree. Said 1st. Second partition member 7
．． 8 is 1 cocoon 4 and 1st degree 2nd in 3 to said circle IM
The 7 langes 5.6 and ζ are arranged in the enclosed space, and the first partition part (off is located here; the groove 9 and the first member 1 are connected to each other). It is fixed in position so that it can be moved in the circumferential direction with the full valve fitted to the fixing member 10, and furthermore, it is connected via the second 8-piece connecting pin 11. .I bar 2 flange 5゜6

[Ko-f, 4=
+ This is a small knot. The pressure chamber 12.13 of the -gl,...@2, the pressure inside the space 18 and the pressure 1. The partitions are formed from the partition members 7 and 8i of the brush 2, and
1st. Fiber 2 (f Mechanics 12,131 is the 2nd L', !J
(As shown in the picture, No. 1. Wang Tong on the other side of the remaining 2; Raku) 4
, 15 from the outside to supply a separate fluid pressure to the a l bearing 1.8.19 (r':
i, 1st. The second 7 flange 5.6 is provided in the bearing chamber 16.17 formed between the cylindrical hole 3 and the shaft 4 in one rule. Both ends of the ladle 1 are fitted together and secured by bolts (not shown) I. In the conventional swing motor, the first and second fluid pressure passages 14. 15'i through the first and second pressure chambers 12.
Within 13 (<4f, so that the pressure of this person is different)
When body pressure is supplied 1-, the x-th, mz-th member 1.2 becomes the first.
; Relative rotation ζ in the direction in which the pressures in the pressure chambers 12 and 13 of the sleeve 2 are equalized. As a result, pressure chamber 1 of 1°@2
2.13 prone ≠ 2 changes. Also, Chiku 1. From the second pressure chamber 12.13, the cylindrical hole 3 and the chiku 1. When the fluid pressure leaks through the entire gap between the flanges 5 and 6 of the chiku 2, the fluid pressure leaks from the 1st degree to the second plunge 5.
It enters the bearing chamber 16, 17 provided outside of the first member 1j, and is then guided and recovered through the drain passage (not shown) provided in the first member 1j. The type of swing motor has a first pressure chamber 12, a second pressure chamber 12,
13 pressure to 1st. f): Since the flange 5.6T of 2 can be bent, the end cover 20° 2N is bent and no fluid pressure is applied. Therefore, the end cover 20, 21? Fixed installation is possible with POL) fM (possible
Accordingly, it is possible to reduce the thickness of the member 1 of the cover 1, and also to reduce the thickness of the end cover 20 and 21, thereby making the overall compact and lightweight. However, the opposite + iii, 1st. 2nd T right ventricle 12° 13 flow large pressure cap circular hole 3 and J, 2nd 7 → hole 5.6
There is a drawback that the bearing chambers 16, i, 7 pass through the gaps between the bearing chambers 16, i, 7, and the peripheral surface of the cylindrical hole 3 and the first. The gap between the outer surfaces of the partition members 7 and 8 of Chiku 2, 'i? and the peripheral surface of the shaft 4 and the first. Partition part of eraser 7.8 +i', +Tf:
1. Fill through the space of 4i. Pressure chamber of ゐX2] 2゜13
Of -? i's striking power'! Tokara and others - Special 1 wood pressure in 1 mocha room of J Te 7. ;Familiarity/b There is a drawback. [Object of the Invention] The object of the present invention is to provide each E! Fluid pressure C incision from E chamber? i
31°? It can be prevented and l-may be the first. The present invention provides a mechanism for controlling the relative rotational movement of the members of the shaft 2 without any hindrance to the relative rotational movement of the members. Due to body pressure, the swing motor ζ rotates the entire second member relative to each other. The seal part is fitted between the part that contacts the shaft of the member and the part that contacts the first and second 7 flange parts, and this structure completely achieves the above purpose. [Embodiments of the Invention] Hereinafter, specific embodiments of the present invention will be explained based on all the drawings. Figures 3 to 8 show one embodiment of the present invention. in,
1st. the second member 22.23, the first partition member 35 and the sealing member 41.43 attached around it;
The partition member 36 and the seal parts 42 and 44 attached around it, the first partition member 36 and Second pressure chamber 48, 49, bearing 54
．． 55 and end covers 56 and 57. Inside the first member 22 as a housing, as shown in FIG. 3, a cylindrical hole 24 is formed.
The axially intermediate portion of the cylindrical hole 24 is a small diameter portion 25 . The second member 23 is connected to the shaft 2 as shown in FIG.
5 deaths and 1st. It is configured with a second seven lunges 26 and 27ffi. Then, @25 is inserted into the center of the cylindrical hole 24, and the first. Second 7 Lunge 26. ．． 27
1 in the cylindrical hole 24! ! Iil! and is integrally attached to the shaft 25 at all set intervals. Na〉、
The first to die on axis 25. A cutout groove 25' for engaging a protrusion of a sealing member 42, which will be described later, is formed in the groove 11 near the inner end surface of the second flange 26,27. Said first flange 26i'l: As shown in FIG.
, a small diameter portion 28 formed with a small diameter and disposed on the inside 4
and a large diameter portion 30 which is formed in a shape to fit into the cylindrical hole 24 and is integrally provided on the outside of the small diameter portion 28, and the outer periphery of the small diameter portion 28 and the cylindrical hole 24
A circumferential gap is formed between them. As shown in FIG.
The cylindrical hole 24# is provided with a large diameter portion 3J which is formed in a J-shape and is disposed on the outside of the small diameter portion 29, and the large diameter portion 31 is connected to the small diameter portion 29I by the hole 32. Minute F4 is possible connected. In addition, the small diameter portion 2
A circumferential gap is formed between the outer periphery of the hole 9 and the cylindrical hole 24. Said 1st. Small diameter portion 28. of the second flange 26.27.
29 and the cylindrical hole 24, seal members 33 and 34 each having a beak-shaped cross section are inserted, as shown in FIG. Member 33
．． 34 is that web? It is mounted in contact with the end surface of the small diameter portion 24' of the cylindrical hole 24. Said 1st. Second B: The cutting members 35 and 368 are connected to the small diameter portion 247I of the cylindrical hole 24 and the first shaft 25 as shown in FIG. 3 and FIG. The first partition member 35 has a number as shown in FIG. child,
The part in contact with the small diameter portion 28 of the first 7 langes 26, @2
5 (contacting part) and the part ζ in contact with the small diameter part 29 of the second 7 flange 27, a groove 37 with an oblique shape when viewed from the front is formed, and a sixth groove 37 is formed at both ends of the groove 37. As shown in the figure, the arc-shaped locking groove 37'≠2 is formed,
In addition, a hole 5 is inserted into the portion in contact with the small diameter portion 24' of the cylindrical hole 24.
1 (as shown, hollow circular groove 3 when viewed from the plane force)
9d: 4 has been completed. Thus, the first partition member 35
A seal member 4] and a seal portion 43 of the handle are attached. The sealing member 41 is shown in FIGS. 3 and 6 (as shown in this figure).
1' is attached, the inverted U-shaped and band-like part is fitted into the groove 37, and the arc-shaped part 41' is fitted with the said connecting lever 7371. The small diameter portion 2 of the first 7 flange 26 of the partition member 35ζ
Between the part touching 8, the part touching IILIII35i and the small diameter part 29 of the 7 flange 27 of Sho 2?
It is sealed. , the sealing member 43 is formed into a hollow rectangular shape when viewed from above (as shown in FIG. The part 24'l is sealed between the contacting parts.In addition, as shown in FIG.
a groove 45 for position fixing formed in the partition member 35t;
It is fully fitted with a fixing member 47 provided on the member 22 of @1 and is fixed so as not to move in the circumferential direction. As shown in FIG. Over the contacting part, a groove 38 in the shape of an incline is formed by tilting the JE plane, and at both ends of the groove 38, an arcuate locking groove 38' is formed as shown in FIG. As shown in the seventh factor, a band-shaped groove 40 is formed in the portion of the hole 24 that is in contact with the small diameter portion 24', and a mossy rectangular locking groove 40' is provided at both ends of the groove 40. . A seal member 42 and another seal member 44 are attached to the second partition member 36. The seal member 4
2 is the above-mentioned inverted U-shaped I as shown in FIGS. 3 and 8.
A T and band-shaped tactile part i'L'fC, a protrusion 42a protruding from its bent corner, and an inverted U-shaped arcuate part provided at both ends of the band-shaped part. 42b, the inverted U-shaped and band-like portion is entirely fitted into the groove 38ζ, and the protrusion 42a is inserted into the shaft 251. The arc-shaped portion 42 is fitted into the notched groove 25' formed near the inner end surface of the second flange 26, 27.
b into the locking groove 38' (fitted and attached),
In the second partition member 36,
The small diameter portion 29ζ of the flange 27 is completely sealed. On the other hand, as shown in FIG. 7, the sealing member 44 is formed in a shape in which all of the square parts 44' are attached to both ends of a band-shaped part. A cylindrical hole 2 that is fitted into the locking groove 40' and attached to the second partition member 36;
The small diameter portion 241 of No. 4 seals between the contacting portions. Further, the second partition member 36 is integrally connected to the cash register 26.2 via a connecting bottle 46. Said 1st. The second pressure chambers 48, 49 are, as shown in FIG.
H5 1st, 2nd (7) 79 26th, 27th
'J) Small diameter portion 28. , 29 and 1. The inside of the convex cylindrical space surrounded by the first . Partition member 35.36 of filler 2
It is divided into sections and is built under eaves. Also, 1st. The second pressure chamber 48.49 contains the first pressure chamber 48.49. Second fluid pressure passage 50
．． External force and fluid pressure are supplied through 51. The bearings 54 and 55 are connected to the first and second bearings as shown in the third section. A groove is formed between the shaft 25 and the cylindrical hole 24 on the outside of the large diameter portion 30. 22.
The relative rotation of 23 is completely smooth. As shown in FIG. 3, the front We end rings 56 and 57 are fitted to both ends of the first part 22 as a housing, and are fixed with bolts (not shown). The swing motor of the above embodiment operates as follows. That is, 1st. second fluid; first fluid through pressure passage 50.51; Second pressure chamber 48.49 internal fluid pressure 71I;
supplied, and the first. When a difference in pressure occurs in the second Tf force chamber 48°49, the first. The 1st degree second partition member 35
．． 1 through 36. The second member 22,23 rotates relative to each other. As a result, 1. Volume of pressure chamber 48, 49 of well 2≠; changes. Then, around the first partition member 35, a part in contact with the small diameter part 28 of the first 7 flange 26, a part in contact with the shaft 25, and a part in contact with the small diameter part 291 of the second flange 27 (this is the 7E surface). A sealing member 41, which has an inverted U-shape and a band-like shape when viewed from above, is attached by being fitted into it, and a sealing member 43 is attached to the part where the small diameter portion 24'ζ of the cylindrical hole 24 comes in contact with the second partition. Around Bugetsu 36,
The part in contact with the small diameter portion 28 of the first 7 flange 26, the shaft 2
5I, and the small diameter portion 291 of the flange 27 at @2, which extends over the small diameter portion 291 of the flange 27, has an inverted U-shape when viewed from the front, and is fitted with the adjacent sealing member 42, and is attached to the small diameter portion of the cylindrical hole 24. The part t in contact with 24'
The moss seal member 44≠; is fitted and attached 11, and the first. Since the area around the partition part 35, 36 of @2 is completely sealed by these seal members 41, 42, 43, 44 & here, the first. Second pressure chamber 48.
It is possible to completely prevent leakage of fluid pressure from 49 to the outside. When the second member 22° 23 rotates relative to each other, it is possible to prevent the sealing member 41° 42.44 from getting caught. , 1if
11125ζ This integral ζ is provided in the small diameter part 29 with t', and the hole 7 ret 32f! Since the large-diameter portion 31 is coupled to the large-diameter portion 31 through the large-diameter portion 31 so that the large-diameter portion 31 can be separated, the second member 23 can be easily assembled or disassembled with respect to the first member 22. In addition, in the present invention, the specific structure of each part is not limited to the illustrated embodiment; it is sufficient that the structure can perform the function of the 19T period, and the number of pressure chambers may be 2 or ζ. It doesn't matter, as long as it's an even number. [Effects of the Invention] According to the present invention described above, the first pressure is increased by the fluid pressure supplied from the outside into the pressure chamber. A swing motor that rotates the second member relative to each other rotates the first part, the part in contact with the cylindrical hole IO in the circumference of the second partition member, the part in contact with the axis t of the second member, and the shaft. 1. Since the seal member is fitted and attached between the part that contacts the second flange,
It is possible to completely prevent leakage of fluid pressure from each pressure chamber to the outside, and therefore not only has the effect of completely improving performance, but also prevents problems such as the sealing member getting caught when the first and @2 members rotate relative to each other. There are effects that can be avoided if none of them exist.

[Brief explanation of the drawing]

Figures 1 and 2 show conventional rockers.
Figure 1 is a longitudinal cross-sectional view on JE, Figure 2 is a cross-sectional view along the +[-II line of Figure 1, and Figures 3 to 8 are all illustrations of an embodiment of the present invention, and the third part is a longitudinal cross-sectional view. The front view, figure 4, is the ■ of Chikuzo figure.
-■ line sectional view, Figure 5 is an enlarged plan view of the first partition member and the sealing member attached around it, Figure 6 is a side view of the same, and Figure 7 is the second partition member and its surroundings. FIG. 8 is a side view of an enlarged pressure surface of the attached seal member. 22.23...Frozen 1. Chiku 2 member, 24... Cylindrical hole formed in the first member, 24'... Small diameter portion of the cylindrical hole, 25... Axis of the second member, 26.27... fi<1 of the second member, t'-2) → change, 28.
29... Small diameter portion of the first and second flanges, 30.3
1... Same large diameter part, 32... Connecting the small diameter part and large diameter part of the second 7 langes - bolt, 35 * '36.
...@1. Second partition member, 37.39...first f
": Groove formed in the cutting member, 38.40... tL formed in the second partition member ;' (Groove, 41.43... First
The partition member is removed by r + i (i cut out seal member,
42.44...Around the second partition member (this installation f
Sealing member, 45° 47...Groove and fixing member for fixing the position of the first pressure-cutting member, 46...Connecting pin of the second partition member, 48.49...The first. a second pressure chamber;
50.51... 1st. second fluid pressure passage, 54.55.
・・Bearing, 56.57・−・End cutter (-0 difference 11 recess 7 − 2 fig. 2! 118

Claims (1)

[Scope of Claims] 1. A first member having an internal cylindrical hole; a first member inserted into the center of the cylindrical hole; and a shaft inserted into the center of the cylindrical hole; The first one attached to the.
a second member having a second seven flange, the shaft disposed within the cylindrical hole and the first member disposed within a hollow cylindrical space surrounded by the second seven flange l; A first partition member fixed in position to the member, a second partition member arranged in the same space and coupled to the member of Chiku 2, and the first partition member.
．． an even number of pressure chambers partitioned by a second partition member, and the first and second partitions are provided with an even number of pressure chambers partitioned by a second partition member, and the first and second partitions are controlled by fluid pressure supplied from the outside into the pressure chambers. In the second swing motor for relatively rotating the members, i11, the first. Circumference ρ of the second partition member
a portion in contact with the cylindrical hole, a portion in contact with the axis of the second member; A swing motor characterized in that a sealing member is fitted and attached between a portion in contact with a second flange. 2. The axis of the second member and the first member inside the cylindrical hole.
2. The swing motor according to claim 1, wherein the companion space surrounded by the second flange is formed to have a smaller diameter l than the outer diameter of both ends in the axial direction. 36 1st above. At least one flange of the second 7 flanges is formed integrally with the shaft and has a small diameter portion smaller than the cylindrical hole, and is formed to have an outer diameter that fits into the cylindrical hole, and is separated into the small diameter portion 11. Possible? The swing motor according to claim 1, characterized in that the swing motor comprises a large-diameter portion attached thereto. 4. Said 1. A sealing member provided around the second partition member includes a portion of the second partition member that is in contact with the axis of the second member and a portion of the first partition member that is in contact with the axis of the second member. 2. The swing motor according to claim 1, wherein the swing motor has a side U-shape and a belt-like shape when viewed from the front, extending over the second flange.