JPH0518726U - Pull rod joint device for tube expander - Google Patents
Pull rod joint device for tube expanderInfo
- Publication number
- JPH0518726U JPH0518726U JP6448691U JP6448691U JPH0518726U JP H0518726 U JPH0518726 U JP H0518726U JP 6448691 U JP6448691 U JP 6448691U JP 6448691 U JP6448691 U JP 6448691U JP H0518726 U JPH0518726 U JP H0518726U
- Authority
- JP
- Japan
- Prior art keywords
- joint
- pull rod
- cut
- long groove
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Joints With Pressure Members (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
(57)【要約】
【目的】 継手効率を高く維持したまま、着脱が簡便で
かつ占有スペースをできるだけ小さくすることのできる
拡管機のプルロッド継手装置を得ること。
【構成】 継手装置は、スリーブ(31)の内周に雌ね
じ(32)を切り、該スリーブ(31)の軸方向にそっ
てそのほぼ中央部まで円周方向に所定の等間隔で前記雌
ねじ(32)に長溝(33)を設け、該長溝(33)の
中央部終了箇所に円周溝(34)を設けた継手(30)
と、一端の外周に雄ねじ(11)を切り、円周方向に所
定の等間隔で該雄ねじ(11)に長溝(12)を設け、
端面に所定形状のライナ(13)を取り付けたプルロッ
ド(10)と、一端の外周に雄ねじ(21)を切ったピ
ストンロッド(20)とからなる。前記プルロッド(1
0)の一端が前記継手(30)の雌ねじ(32)、円周
溝(34)および長溝(33)に係合でき、前記、ピス
トンロッド(20)の一端が前記継手(30)の雌ねじ
(32)に係合できるようにした構成になっている。
(57) [Abstract] [Purpose] To obtain a pull rod joint device for a pipe expander that can be easily attached and detached and occupies as little space as possible while maintaining high joint efficiency. In the coupling device, a female screw (32) is cut on the inner periphery of a sleeve (31), and the female screw (32) is circumferentially formed at a predetermined equal interval along the axial direction of the sleeve (31) to a substantially central portion thereof. A joint (30) in which a long groove (33) is provided in 32) and a circumferential groove (34) is provided at the end portion of the central portion of the long groove (33).
And a male screw (11) is cut on the outer periphery of one end, and long grooves (12) are provided in the male screw (11) at predetermined equal intervals in the circumferential direction,
It is composed of a pull rod (10) having a liner (13) of a predetermined shape attached to its end surface, and a piston rod (20) having an external thread (21) cut on the outer circumference at one end. The pull rod (1
0) is engageable with the female thread (32), the circumferential groove (34) and the long groove (33) of the fitting (30), and the one end of the piston rod (20) is the female thread () of the fitting (30). 32) so that it can be engaged.
Description
【0001】[0001]
本考案は、大型金属加工機械等の継手装置、特に拡管機のプルロッド継手装置 に関するものである。 The present invention relates to a joint device for large-scale metal working machines, and more particularly to a pull rod joint device for a pipe expanding machine.
【0002】[0002]
大型金属加工機械等に用いる継手、例えば、大径管製造のためのUOEプロセ スにおけるメカニカル拡管機のプルロッドとピストンロッドとを連結する継手が ある。 There are joints used for large-scale metal working machines and the like, for example, joints that connect a pull rod and a piston rod of a mechanical pipe expander in a UOE process for manufacturing large diameter pipes.
【0003】 その拡管機の一例を図9に示す。プルロッド1はピストンロッド2に継手3に よって連結され、拡管セグメント4を拡縮する。製管対象のパイプサイズがある 範囲を超えたとき、プルロッド1に付属する部品とともにプルロッドを交換しな ければならない。An example of the tube expander is shown in FIG. The pull rod 1 is connected to the piston rod 2 by a joint 3 and expands and contracts the expansion segment 4. When the pipe size to be piped exceeds a certain range, the pull rod and the parts attached to the pull rod 1 must be replaced.
【0004】 この場合、継手の構造は、図10の(A)に示すように、大きな引張り力に耐 えるためにねじ継手3aになっている。しかし、交換作業を簡便かつ能率化する ために、図10の(B)に示すように、半割りねじ継手3b、またはピン継手3 c 等が用いられることもある。In this case, the structure of the joint is a screw joint 3a in order to withstand a large tensile force, as shown in FIG. However, in order to simplify and streamline the replacement work, as shown in FIG. 10B, a half threaded joint 3b, a pin joint 3c, or the like may be used.
【0005】 半割りねじ継手3bは、ねじピッチ合わせ作業およびボルトの締結・弛緩に手 間がかかる。ピン継手3c は大きなスペースを要し、設備費がかかる。The half-threaded screw joint 3b requires time and effort for screw pitch adjustment work and bolt fastening and loosening. The pin joint 3c requires a large space and requires equipment costs.
【0006】 そこで、これらの継手を改良するために、1対の相補形状の凹凸連結金具(実 開昭52−156741号公報)が提案されている。また、嵌込み回動式の継手 (特開昭63−252625号公報)が提案されている。Therefore, in order to improve these joints, a pair of complementary concave-convex connecting metal fittings (Japanese Utility Model Publication No. 52-156741) has been proposed. Further, a fitting rotation type joint (Japanese Patent Laid-Open No. 63-252625) has been proposed.
【0007】 しかし、これらの継手も、比較的大きいスペースを要し、設備費が高くなる。However, these joints also require a relatively large space and increase the equipment cost.
【0008】[0008]
継手効率を高く維持したまま、着脱た簡便でかつ占有スペースをできるだけ小 さくすることのできる拡管機のプルロッド継手装置を得ることにある。 An object of the present invention is to obtain a pull rod joint device for a pipe expander which can be easily attached / detached and occupies as little space as possible while maintaining high joint efficiency.
【0009】[0009]
本考案の拡管機のプルロッド継手装置は、スリーブの内周に雌ねじを切り、該 スリーブの軸方向にそってそのほぼ中央部まで円周方向に所定の等間隔で前記雌 ねじに長溝を設け、該長溝の中央部終了箇所に円周溝を設けた継手と、一端の外 周に雄ねじを切り、円周方向に所定の等間隔で該雄ねじに長溝を設け、端面に所 定形状のライナを取り付けたプルロッドと、一端の外周に雄ねじを切ったピスト ンロッドとからなり、前記プルロッドの一端が前記継手の雌ねじ、円周溝および 長溝に係合でき、前記ピストンロッドの一端が前記継手の雌ねじに係合できるよ うにした手段によって、上記課題を解決している。 The pull rod joint device for a pipe expander of the present invention is such that an internal thread is formed on the inner circumference of the sleeve, and long grooves are provided in the internal thread along the axial direction of the sleeve at substantially equal intervals in the circumferential direction at predetermined intervals. A joint provided with a circumferential groove at the end of the central portion of the long groove, and a male screw is cut on the outer circumference of one end. It consists of a attached pull rod and a piston rod with an external thread on the outer periphery of one end, one end of the pull rod can engage with the female thread, the circumferential groove and the long groove of the joint, and one end of the piston rod with the female thread of the joint. The above-mentioned problems are solved by means of enabling the engagement.
【0010】[0010]
継手とピストンロッドとは通常のねじ係合によって、継手の長手方向(軸方向 )中央部まで結合される。一方、プルロッドはライナの突起の案内によって軸端 の雄ねじ部と長溝とが継手の長溝とねじ部とにまず軸方向にゆるく嵌合する。そ のまま継手を軸端上を滑らせて所定位置で停止する。次いで、軸または継手を所 定方向に所定の角度だけ相対回転させると、両者のねじ部が互いに螺合する。こ のとき、ライナの突起が継手中央部の円周溝に嵌合し、プルロッドと継手との抜 落ちをも防止する。 The joint and the piston rod are connected to the central portion in the longitudinal direction (axial direction) of the joint by ordinary screw engagement. On the other hand, in the pull rod, the male screw portion and the long groove at the shaft end are first loosely fitted in the long groove and the screw portion of the joint in the axial direction by the guide of the projection of the liner. As it is, slide the joint on the shaft end and stop it in place. Then, when the shaft or the joint is relatively rotated in the predetermined direction by a predetermined angle, the screw parts of both are screwed together. At this time, the projection of the liner fits into the circumferential groove at the center of the joint, preventing the pull rod and the joint from falling off.
【0011】[0011]
図1から図8までを参照して、本考案の拡管機のプルロッド継手装置の実施例 について説明する。 An embodiment of a pull rod joint device for a pipe expander according to the present invention will be described with reference to FIGS. 1 to 8.
【0012】 図1は本考案にもとづく継手装置の分解斜視図である。本考案の継手装置は、 継手30、プルロッド10、ピストンロッド20からできている。FIG. 1 is an exploded perspective view of a joint device according to the present invention. The joint device of the present invention comprises a joint 30, a pull rod 10 and a piston rod 20.
【0013】 継手30は、図2、3に示すように、スリーブ31の内周に雌ねじ32を切り 、スリーブ31の軸方向にそってそのほぼ中央部まで円周方向に所定の等間隔で 雌ねじ32に長溝33を設け、長溝33の中央部終了箇所に円周溝34を設けた 構造になっている。As shown in FIGS. 2 and 3, the joint 30 is formed by cutting an internal thread 32 on the inner circumference of the sleeve 31 and by circumferentially dividing the internal thread 32 along the axial direction of the sleeve 31 to a substantially central portion thereof at a predetermined equal interval. 32, a long groove 33 is provided, and a circumferential groove 34 is provided at the end portion of the central portion of the long groove 33.
【0014】 プルロッド10は、図1、4に示すように一端の外周に雄ねじ11を切り、円 周方向に所定の等間隔で雄ねじ11に長溝12を設け、端面に所定形状のライナ 13を取り付けた構造になっている。As shown in FIGS. 1 and 4, the pull rod 10 has a male screw 11 cut on the outer periphery at one end, long grooves 12 are provided in the male screw 11 at predetermined equal intervals in the circumferential direction, and a liner 13 having a predetermined shape is attached to the end face. It has a different structure.
【0015】 ライナ13の形状は、図5に示すように、プルロッド10の長溝11に一致す る凹部131と、プルロッド10の雄ねじ11よりもいくぶん高い突起132と を有している。As shown in FIG. 5, the shape of the liner 13 has a recess 131 that matches the long groove 11 of the pull rod 10 and a protrusion 132 that is somewhat higher than the male screw 11 of the pull rod 10.
【0016】 ピストンロッド20は、図1に示すように、一端の外周に雄ねじ21を切った 構造になっている。As shown in FIG. 1, the piston rod 20 has a structure in which a male screw 21 is cut on the outer circumference at one end.
【0017】 図2、3に示す継手30を用いて、メカニカル拡管機のプルロッド10をピス トンロッド20に連結する場合について、図6から図8までを参照して説明する 。A case in which the pull rod 10 of the mechanical expander is connected to the piston rod 20 using the joint 30 shown in FIGS. 2 and 3 will be described with reference to FIGS. 6 to 8.
【0018】 まず、図1に示すように、継手30の右側半分の雌ねじ部分32(図2)をピ ストンロッド20の雄ねじ21に螺合させる。次いで、プルトンロッド10の雄 ねじ11と長溝12とを継手30の左側半分の長溝33と雌ねじ32(図2)に 合わせて、プルロッド10を継手30内に挿入する。このとき、ライナ13の凹 部131と突起132とが両者の挿入時の案内として働くとともに両者のねじ1 1、32の損傷を防止する。First, as shown in FIG. 1, the female screw portion 32 (FIG. 2) of the right half of the joint 30 is screwed onto the male screw 21 of the piston rod 20. Next, the male screw 11 and the long groove 12 of the pluton rod 10 are aligned with the long groove 33 and the female screw 32 (FIG. 2) of the left half of the joint 30, and the pull rod 10 is inserted into the joint 30. At this time, the concave portion 131 and the protrusion 132 of the liner 13 serve as a guide when inserting the both and prevent the screws 11 and 32 of the both from being damaged.
【0019】 挿入時の状態を図7(A)に示す。すなわち、継手30の雌ねじ32がプルロ ッド10の長溝12に嵌合し、また、継手30の長溝33がプルロッド10の雄 ねじ11に嵌合する。The state at the time of insertion is shown in FIG. That is, the female thread 32 of the joint 30 fits into the long groove 12 of the pull rod 10, and the long groove 33 of the joint 30 fits into the male thread 11 of the pull rod 10.
【0020】 次に、プルロッド10をねじ係合方向に所定角度だけ回転させる。例えば、右 方向に約45度回転させる。このときの装着結合状態を図7の(B)に示す。Next, the pull rod 10 is rotated by a predetermined angle in the screw engagement direction. For example, rotate it about 45 degrees to the right. The state of attachment and connection at this time is shown in FIG.
【0021】 図6に示すように、継手30に穴35を設け、そこに棒5を挿入して継手30 を所望の角度だけ回動させることもできる。このとき穴35と、プルロッド10 に設けたねじ穴14とを一致させて、そこにねじ切りピン(図8)をねじ込むこ とによって、継手30はプルロッド10に固定されて、回転が防止される。As shown in FIG. 6, it is also possible to provide a hole 35 in the joint 30 and insert the rod 5 therein to rotate the joint 30 by a desired angle. At this time, the hole 30 and the screw hole 14 formed in the pull rod 10 are aligned with each other, and a threaded pin (FIG. 8) is screwed into the hole 35, whereby the joint 30 is fixed to the pull rod 10 and rotation is prevented.
【0022】 図8に示すように、プルロッド10の長溝12と、継手30の長溝33とに、 それぞれねじ穴14および穴35を設けることが好ましい。As shown in FIG. 8, it is preferable that the long groove 12 of the pull rod 10 and the long groove 33 of the joint 30 be provided with screw holes 14 and holes 35, respectively.
【0023】[0023]
本考案の継手装置は、基本的にはねじ継手結合であるから、大きい引張荷重に 耐える。しかも、長溝を設けるだけであるから、占有空間は従来のねじ継手と相 違しない。長溝を利用することにより、継手の着脱作業は著しく改善される。さ らに、プルロッドの先端に設けたライナにより、ねじの損傷防止、挿入の迅速簡 便化を図ることができる。 Since the joint device of the present invention is basically a screw joint connection, it can withstand a large tensile load. Moreover, since the long groove is only provided, the occupied space is not different from the conventional threaded joint. By using the long groove, the attaching and detaching work of the joint is significantly improved. Moreover, the liner provided at the tip of the pull rod can prevent damage to the screw and facilitate quick insertion.
【図1】本考案の継手装置の分解斜視図である。FIG. 1 is an exploded perspective view of a joint device of the present invention.
【図2】本考案の継手装置の継手の縦断面図ある。FIG. 2 is a vertical sectional view of a joint of the joint device of the present invention.
【図3】図2の横断面図であって、(A)および(B)
図は図2のIIIA−IIIAおよびIIIB−III
Bからみた横断面図である。3 is a cross-sectional view of FIG. 2, (A) and (B).
The figure shows IIIA-IIIA and IIIB-III in FIG.
It is the cross-sectional view seen from B.
【図4】本考案の継手装置を構成するプルロッドの先端
部の平面図である。FIG. 4 is a plan view of the tip portion of the pull rod that constitutes the joint device of the present invention.
【図5】図4のV−V線からみた正面図である。5 is a front view seen from the line VV in FIG. 4. FIG.
【図6】本考案の継手装置の装着作業例の横断面図であ
る。FIG. 6 is a cross-sectional view of a mounting operation example of the joint device of the present invention.
【図7】本考案の継手装置の装着結合前の横断面図
(A)および装着結合後の横断面図(B)である。FIG. 7 is a cross-sectional view of the joint device of the present invention before mounting and coupling (A) and a sectional view after mounting and coupling (B).
【図8】継手の回止め手段の一例の部分横断面図であ
る。FIG. 8 is a partial cross-sectional view of an example of a rotation stopping means of the joint.
【図9】従来の拡管機の縦断面図である。FIG. 9 is a vertical sectional view of a conventional tube expander.
【図10】従来の継手の斜視図である。FIG. 10 is a perspective view of a conventional joint.
10 プルロッド 20 ピストンロッド 30 継手 10 Pull rod 20 Piston rod 30 Joint
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 F16L 19/00 7123−3J 37/24 9137−3J ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location F16L 19/00 7123-3J 37/24 9137-3J
Claims (1)
ーブの軸方向にそってそのほぼ中央部まで円周方向に所
定の等間隔で前記雌ねじに長溝を設け、該長溝の中央部
終了箇所に円周溝を設けた継手と、一端の外周に雄ねじ
を切り、円周方向に所定の等間隔で該雄ねじに長溝を設
け、端面に所定形状のライナを取り付けたプルロッド
と、一端の外周に雄ねじを切ったピストンロッドとから
なり、前記プルロッドの一端が前記継手の雌ねじ、円周
溝および長溝に係合でき、前記ピストンロッドの一端が
前記継手の雌ねじに係合できるようにした拡管機のプル
ロッド継手装置。1. An internal thread is formed on the inner circumference of a sleeve, and long grooves are provided in the internal thread at predetermined equal intervals in the circumferential direction along the axial direction of the sleeve to a substantially central portion thereof. On the outer periphery of one end, a male rod is cut on the outer periphery of one end, and long grooves are formed on the male screw at regular intervals in the circumferential direction, and a liner of a predetermined shape is attached to the end face. A pipe expander comprising a piston rod with a male thread cut off, one end of the pull rod engageable with a female thread, a circumferential groove and a long groove of the joint, and one end of the piston rod engages with a female thread of the joint. Pull rod joint device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6448691U JPH0518726U (en) | 1991-08-14 | 1991-08-14 | Pull rod joint device for tube expander |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6448691U JPH0518726U (en) | 1991-08-14 | 1991-08-14 | Pull rod joint device for tube expander |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0518726U true JPH0518726U (en) | 1993-03-09 |
Family
ID=13259596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6448691U Pending JPH0518726U (en) | 1991-08-14 | 1991-08-14 | Pull rod joint device for tube expander |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0518726U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007239995A (en) * | 2006-03-04 | 2007-09-20 | Coperion Werner & Pfleiderer Gmbh & Co Kg | Worm shaft joint |
JP2011230091A (en) * | 2010-04-30 | 2011-11-17 | Hitachi Koki Co Ltd | Electric tool and agitation machine |
JP2019112837A (en) * | 2017-12-25 | 2019-07-11 | 日鉄建材株式会社 | Joint structure of tubular member, tubular member, and construction method of tubular member |
-
1991
- 1991-08-14 JP JP6448691U patent/JPH0518726U/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007239995A (en) * | 2006-03-04 | 2007-09-20 | Coperion Werner & Pfleiderer Gmbh & Co Kg | Worm shaft joint |
JP4714702B2 (en) * | 2006-03-04 | 2011-06-29 | コペリオン ゲーエムベーハー | Worm shaft coupling |
JP2011230091A (en) * | 2010-04-30 | 2011-11-17 | Hitachi Koki Co Ltd | Electric tool and agitation machine |
JP2019112837A (en) * | 2017-12-25 | 2019-07-11 | 日鉄建材株式会社 | Joint structure of tubular member, tubular member, and construction method of tubular member |
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