CN203370873U - Roller replacing device of steel tube straightening machine - Google Patents

Abstract

The utility model provides a roller replacing device of a steel tube straightening machine, and relates to the steel tube straightening machine. The roller replacing device solves the problems that an existing roller replacing device is large in size, complex in structure and high in manufacturing cost. The roller replacing device comprises a balance weight, lifting bolts, shackles, link chains, a balance beam and a supporting frame. One end of the balance beam is connected with a lower straightening roller through the lifting bolts, the shackles and the link chains or placed on an upper straightening roller on the temporary supporting frame, the other end of the balance beam is linked with the balance weight through the lifting bolts, the shackles and the link chains, positions of the lifting bolts connecting the balance weight and the balance beam are adjustable, and the middle of the balance beam is provided with a lifting hole. The roller replacing device is used for roller replacement of the vertical inclined roll steel tube straightening machine, and has the advantages of being simple in structure, low in weight, low in cost and convenient to operate.

Description

A kind of changing rig of pipe straightener

Technical field

The utility model relates to pipe straightener, particularly a kind of changing rig of vertical cross roll pipe straightener.

Background technology

In the use procedure of vertical cross roll pipe straightener, smoothing roll can wear and tear, damage, and when needs are changed, straightener top roll and lower roll is removed with a kind of changing rig, after changing or keeping in repair, installs again.

The changing rig of prior art as shown in Figure 1, 2.When smoothing roll need to be changed, upper straightening roll 7 and lower smoothing roll 8 are installed and are linked together by gusset piece 9, bearing 10, driving shaft coupling 12 drive installations at drive unit 11 rotates at base 13 and the screw rod 15 on support 14, rotation by screw rod 15, and then drive is arranged on nut 16 rectilinear motions on nut seat 17, by pull bar 18, old roller is hauled out, or new roller is pushed.Due to existing changing rig support and the base volume large, Heavy Weight, processing bolt and nut difficulty is large, manufacturing cost is very high.Also need a set of drive unit as power, complex structure, troublesome poeration simultaneously.

Summary of the invention

The purpose of this utility model is exactly in order to overcome the shortcoming of prior art, and a kind of changing rig of pipe straightener is provided, and solves the existing large heaviness of changing rig body, complex structure, the problem that manufacturing cost is high.

Technical solutions of the utility model are for achieving the above object:

A kind of changing rig of pipe straightener, it is characterized in that: described changing rig is comprised of counterweight, lifting bolt, shackle, loop chain, equalizer bar and temporary support, one end of equalizer bar connects lower smoothing roll or is positioned over the upper straightening roll on temporary support by lifting bolt, shackle, loop chain, the other end of equalizer bar is connected on counterweight by lifting bolt, shackle, loop chain, the lifting bolt position that counterweight connects with equalizer bar is adjustable, and the equalizer bar middle part is provided with lifting eye.

The utility model compared with the prior art, owing to adopting an end connection can place the equalizer bar of the bracing frame of smoothing roll, other end connection counterweight, can lift by crane equalizer bar by driving, the smoothing roll of slinging, then handle the counterweight end by the workman, smoothing roll is shifted out or changes to.Thereby realized the replacing of straightener roll of straightener.

The utility model is for the roll change of vertical cross roll pipe straightener, has simple in structurely, lightweight, and cost is low, easy to operate advantage.

The accompanying drawing explanation

The structural representation that Fig. 1 is the prior art changing rig;

The A-A cutaway view that Fig. 2 is Fig. 1;

Fig. 3 is structure of the present utility model (upper straightening roll roll change) schematic diagram;

The left view that Fig. 4 is Fig. 3;

Fig. 5 is structure of the present utility model (lower smoothing roll roll change) schematic diagram;

The left view that Fig. 6 is Fig. 5;

The top view that Fig. 7 is Fig. 3 Fig. 5.

Below in conjunction with accompanying drawing, by preferred embodiment, the utility model is further described.

The specific embodiment

As shown in Fig. 3～7, a kind of changing rig of pipe straightener, by counterweight 1, lifting bolt 2, shackle 3, loop chain 4, equalizer bar 5 and temporary support 6, formed, one end of equalizer bar 5 connects lower smoothing roll 8 or is positioned over the upper straightening roll 7 on temporary support 6 by lifting bolt 2, shackle 3, loop chain 4, on upper straightening roll 7 or lower smoothing roll 8, the other end of equalizer bar 5 is connected on counterweight 1 by lifting bolt 2, shackle 3, loop chain 4, lifting bolt 2 positions that counterweight 1 connects with equalizer bar 5 are adjustable, and equalizer bar 5 middle parts are provided with lifting eye 5.1.

The utility model operation principle:

When replacing with smoothing roll, by adjusting the height of straightener upper straightening roll 7, upper straightening roll 7 is dropped on temporary support 6 and puts surely, unclamp connecting between upper straightening roll 7 and straightener main frame, equalizer bar 5 one ends are connected on upper straightening roll 7 by lifting bolt 2, shackle 3, loop chain 4, the other end of equalizer bar 5 is connected on counterweight 1, and trimming moment when lifting can be regulated by the adjustment position of lifting bolt 2 on equalizer bar 5 in counterweight 1 position, to adapt to the weight of smoothing roll.After the lifting position adjustments is good, connect the lifting eye 5.1 of equalizer bar 5 with travelling crane hook, lifting of travelling crane, upper straightening roll 7 is lifted, and the at this moment manipulation at the counterweight end by the workman, shift out upper straightening roll 7.By contrary operational sequence, upper straightening roll 7 can be changed to.

When changing lower smoothing roll, unclamp connecting between lower smoothing roll 8 and straightener main frame, equalizer bar 5 one ends are connected on lower smoothing roll 8 by lifting bolt 2, shackle 3, loop chain 4, the other end of equalizer bar 5 is connected on counterweight 1, trimming moment when lifting can be regulated by the adjustment position of lifting bolt 2 on equalizer bar 5 in counterweight 1 position, to adapt to the weight of smoothing roll.After the lifting position adjustments is good, connect the lifting eye 5.1 of equalizer bar 5 with travelling crane hook, lifting of travelling crane, lower smoothing roll 8 is lifted, and lower smoothing roll 8 is shifted out in the at this moment manipulation at the counterweight end by the workman.By contrary operational sequence, lower smoothing roll 8 can be changed to.

Claims (1)

1. the changing rig of a pipe straightener, it is characterized in that: described changing rig is by counterweight (1), lifting bolt (2), shackle (3), loop chain (4), equalizer bar (5) and temporary support (6) form, one end of equalizer bar (5) is by lifting bolt (2), shackle (3), loop chain (4) connects lower smoothing roll (8) or is positioned over the upper straightening roll (7) on temporary support (6), the other end of equalizer bar (5) is by lifting bolt (2), shackle (3), loop chain (4) is connected on counterweight (1), lifting bolt (2) position that counterweight (1) connects with equalizer bar (5) is adjustable, equalizer bar (5) middle part is provided with lifting eye (5.1).

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