CN214517180U

CN214517180U - Spinning head for pipe expander

Info

Publication number: CN214517180U
Application number: CN202120151243.0U
Authority: CN
Inventors: 姚相同
Original assignee: Jiangsu Jierun Pipe Science Co ltd
Current assignee: Jiangsu Jierun Pipe Science Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-10-29
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a spinning head for a pipe expander, which comprises an outer pipe body, an inner cone body and a roller matched with the expanded pipe body, wherein a movable claw for pushing the roller to expand along the radial direction is arranged between the outer pipe body and the inner cone body; the inner end of the connecting rod is fixed with a positioning seat for positioning the inner ends of the outer tube body and the inner cone body, the outer end of the connecting rod is provided with a positioning sleeve for positioning the outer ends of the outer tube body and the inner cone body, and a plurality of washers for adjusting the protruding height of the roller on the outer tube body are arranged on the connecting rod between the positioning sleeve and the positioning seat. The utility model discloses set for seat, position sleeve and packing ring, through the degree of depth that the outstanding outer body part of increase and decrease packing ring effective control roller to adapt to the expanded pipe body of different internal diameters, improve the use of device nimble.

Description

Spinning head for pipe expander

Technical Field

The utility model relates to a pipe expander, in particular to pipe expander is with spinning head.

Background

The existing underground drainage pipeline mainly comprises two types, one type is an all-steel pipeline, and the other type is a graphite pipeline with a thin steel cylinder as a lining. The first pipeline has good wall thickness and rigidity but high cost, and the second pipeline has low cost and long service life. In the process of producing the second pipeline, the lining steel cylinder needs to be expanded by the spinning head for the pipe expander, so that the lining steel cylinder can be tightly attached to the outer cylinder, and a good using effect is ensured. The size of the pipe expanding part used by the spinning head for the existing pipe expander is fixed, but the inner diameter of the pipe with the same size is deviated, and the pipe expander with the existing structure cannot adapt to the deviation. In addition, the existing spinning head for the pipe expander is inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art not enough, provide a reasonable in design, use more in a flexible way, transmission and easy dismounting's expander is with spinning head.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a spinning head for a pipe expander is characterized by comprising an outer pipe body, an inner cone body and a roller matched with the expanded pipe body, wherein two ends of the roller are provided with round corners, the roller is uniformly distributed along the circumferential direction of the outer pipe body, a movable claw for pushing the roller to expand along the radial direction is arranged between the outer pipe body and the inner cone body, the outer surface of the movable claw is provided with a roller mounting groove, the inner surface of the movable claw is provided with a conical surface matched with the inner cone body, the outer pipe body is provided with a hole for the roller to protrude out, and the inner cone body is provided with a connecting rod fixedly connected with a power device on the pipe expander in a penetrating manner;

the inner end of the connecting rod is fixed with a positioning seat for positioning the inner ends of the outer tube body and the inner cone body, the outer end of the connecting rod is provided with a positioning sleeve for positioning the outer ends of the outer tube body and the inner cone body, a plurality of gaskets for adjusting the protruding height of the rollers on the outer tube body are arranged on the connecting rod between the positioning sleeve and the positioning seat, and the gaskets are annular rings with notches.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme be equipped with the recess that sets up along outer tube body axis on the conical surface of movable claw, including be equipped with on the cone with recess complex lug, recess one end opening sets up.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, be equipped with the fixed establishment that prevents that the outer body of air machine gyration in-process from rocking on the connecting rod in the position sleeve outside.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, fixed establishment is including the compression spring of cover at the connecting rod, and compression spring one end is supported and is sheathe in the locating sleeve, and the compression spring other end is equipped with the baffle of cover on the connecting rod, is equipped with the baffle locating pin on the connecting rod.

The utility model discloses the technical problem that will solve can also realize through following technical scheme, the screw thread meets between inner cone and the connecting rod, and the screw thread meets between position sleeve and the connecting rod.

Compared with the prior art, the utility model discloses a set for seat, position sleeve and packing ring, through the outstanding outer body part's of increase and decrease packing ring effective control roller degree of depth to adapt to the expanded pipe body of the quilt of different internal diameters, improve the use of device nimble, through setting for position groove and locating piece, make things convenient for transmission and dismouting between inner cone and the connecting rod. The spinning head of the utility model has simple structure and convenient use.

Drawings

Fig. 1 is a structural diagram of a spinning head for a pipe expander according to the present invention;

fig. 2 is an internal structural view of fig. 1.

In the figure: 1-roller, 2-outer tube, 3-inner cone, 4-connecting rod, 5-positioning seat, 6-washer, 7-positioning sleeve, 8-compression spring, 9-baffle, 10-positioning pin, 11-opening hole, 12-movable claw, 13-roller mounting groove, 14-groove and 15-positioning block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a spinning head for a pipe expander comprises an outer pipe body 2, an inner cone body 3 and a roller 1 matched with the expanded pipe body, wherein two ends of the roller 1 are provided with round corners, the roller 1 is uniformly distributed along the circumferential direction of the outer pipe body 2, a movable claw 12 for pushing the roller 1 to expand along the radial direction is arranged between the outer pipe body 2 and the inner cone body 3, the outer surface of the movable claw 12 is provided with a roller mounting groove 13, the inner surface of the movable claw 12 is provided with a conical surface matched with the inner cone body 3, the outer pipe body 2 is provided with an opening 11 for the protrusion of the roller 1, and the inner cone body 3 is provided with a connecting rod 4 fixedly connected with a power device on the pipe expander in a penetrating manner;

connecting rod 4 the inner is fixed with and is used for fixing a position the inner positioning seat 5 of outer body 2 and interior cone 3, and 4 outer ends of connecting rod are equipped with the position sleeve 2 that is used for fixing a position outer body 2 and interior cone 3 outer end, can adopt threaded connection between position sleeve 2 and the connecting rod 1, are equipped with a plurality of washers 6 of adjusting roller 1 salient height on outer body 2 on connecting rod 2 between position sleeve 2 and the positioning seat 5, washer 6 can adopt the annular ring that has the breach, gets and puts the convenience.

The inner cone 3 is connected with the connecting rod 4 through threads, so that transmission and disassembly and assembly are facilitated.

Be equipped with on the conical surface of movable jaw 12 along the recess 14 that outer body axis set up, be equipped with on inner cone 3 with recess 14 complex lug 15, recess 14 one end opening sets up, and the open end sets up to the lug entry, makes things convenient for transmission and dismouting, and the length of recess 14 is greater than the length of lug 15, makes things convenient for inner cone 3 to follow axial displacement.

Be equipped with the fixed establishment that prevents that the outer body of empty quick-witted gyration in-process from rocking on connecting rod 4 in the position sleeve 7 outside, fixed establishment supports on position sleeve 7 including the compression spring 8 of cover at connecting rod 4, compression spring 8 one end, and the compression spring 8 other end is equipped with the baffle 9 of cover on connecting rod 4, is equipped with baffle locating pin 10 on connecting rod 4, supports the spinning head through fixed establishment in the empty quick-witted gyration in-process, can prevent effectively that the outer body from rocking, improve the stability of device.

In the course of the work, under the effect of pipe expander power unit, connecting rod 4 follows power unit and rotates, the transmission effect through the locating piece in the time of the pivoted drives movable claw 12 by inner cone 3 and rotates, through the transmission effect of roller 1, drive outer body 2 and rotate, rotate the in-process, roller 1 with by the internal wall friction of pipe expander and take place to rotate, after the pipe expander work is accomplished, the empty machine gyration, the gyration in-process is avoided outer body to take place to rock through fixed establishment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A spinning head for a pipe expander is characterized by comprising an outer pipe body, an inner cone body and rollers matched with the expanded pipe body, wherein the rollers are uniformly distributed along the circumferential direction of the outer pipe body;

the inner end of the connecting rod is fixed with a positioning seat for positioning the inner ends of the outer tube body and the inner cone body, the outer end of the connecting rod is provided with a positioning sleeve for positioning the outer ends of the outer tube body and the inner cone body, and a plurality of washers for adjusting the protruding height of the roller on the outer tube body are arranged on the connecting rod between the positioning sleeve and the positioning seat.

2. The spinning head for the tube expander according to claim 1, wherein a groove is formed on the tapered surface of the movable jaw along the axis of the outer tube body, a projection is formed on the inner cone to fit the groove, and one end of the groove is open.

3. The spinning head for the pipe expander according to claim 1, wherein a fixing mechanism for preventing the outer pipe body from shaking in the rotation process of the empty expander is arranged on the connecting rod outside the positioning sleeve.

4. The spinning head for the pipe expander according to claim 3, wherein the fixing mechanism comprises a compression spring sleeved on the connecting rod, one end of the compression spring abuts against the positioning sleeve, the other end of the compression spring is provided with a baffle sleeved on the connecting rod, and the connecting rod is provided with a baffle positioning pin.

5. The spinning head for a pipe expander according to claim 1, wherein the washer is an annular ring with a gap.

6. The expander screw driver according to claim 1, wherein the rollers are provided with rounded corners at both ends.

7. The spinning head for a pipe expander according to claim 1, wherein the inner cone is in threaded connection with the connecting rod, and the positioning sleeve is in threaded connection with the connecting rod.