CN-224208838-U - Wedge-shaped lifting mechanism for lower straightening roller seat of metal tube bar oblique roller straightener

CN224208838UCN 224208838 UCN224208838 UCN 224208838UCN-224208838-U

Abstract

The utility model belongs to the technical field of metallurgical pipe and bar straightening machine equipment, and mainly relates to a wedge-shaped lifting mechanism for a lower straightening roller seat of a metal pipe and bar oblique roller straightening machine. The lower straightening roll is provided with a roll seat for supporting the lower straightening roll, a base is fixed at the lower part of the roll seat, two symmetrical inclined planes are arranged on the bottom surface of the base, an inclined wedge I and an inclined wedge II are respectively arranged on the two inclined planes, the lower parts of the inclined wedge I and the inclined wedge II are in threaded connection with a front and back threaded screw rod, the inclined wedge I and the inclined wedge II are combined together and are located in a slideway of a lower machine frame, one end of the front and back threaded screw rod is matched with a transmission shaft to form a structure that the transmission shaft drives the front and back threaded screw rod to rotate, so that the inclined wedge I and the inclined wedge II drive the base and drive the roll seat and the lower straightening roll to lift. The utility model solves the problem of clamping resistance of the screw nut for adjusting the lifting of the lower roller seat of the straightening roller after the straightening machine is used for a long time.

Inventors

JIN ZEWEN
JIN LIANG
WANG CHANGHOU
WANG LEI
Wang yalong
MA YUNFENG
CHEN ZHANGKE
Chai Zongzhe

Assignees

洛阳海思德重工有限公司

Dates

Publication Date: 20260508
Application Date: 20250421

Claims (3)

1. A wedge-shaped lifting mechanism for a lower straightening roller seat of a metal pipe and bar inclined roller straightener is characterized in that a base is fixed at the lower part of the roller seat, inclined wedges I and II are respectively arranged on the bottom surface of the base and correspond to the two inclined surfaces, the lower parts of the inclined wedges I and II are connected with a positive and negative screw thread in a threaded manner, the inclined wedges I and II are combined together and located in a slide way of a lower rack, one end of the positive and negative screw thread screw rod is matched with a transmission shaft to form a structure that the transmission shaft drives the positive and negative screw thread screw rod to rotate so that the inclined wedges I and II move oppositely or back to each other, and the inclined wedges I and II drive the base and drive the roller seat and the lower straightening roller to lift.
2. The wedge lifting mechanism for a lower straightening roll seat of a metal tube and bar inclined roll straightener of claim 1, wherein the inclined wedge I and the inclined wedge II are respectively provided with a positive thread and a negative thread matched with a positive and a negative thread screw rod.
3. The wedge-shaped lifting mechanism for a lower straightening roll seat of a metal tube and bar straightening machine according to claim 1, wherein a sliding copper sleeve is arranged between the base and a lower frame of the straightening machine.

Description

Wedge-shaped lifting mechanism for lower straightening roller seat of metal tube bar oblique roller straightener Technical Field The utility model belongs to the technical field of metallurgical pipe and bar straightening machine equipment, and mainly relates to a wedge-shaped lifting mechanism for a lower straightening roller seat of a metal pipe and bar oblique roller straightening machine. Background As shown in figure 1, the roller seat 4 of the lower straightening roller 7 of the traditional pipe and rod material inclined roller straightener adopts the screw rod 2 to rotate so as to push the copper nut 3, so that the straightening roller seat 4 on the lower rack 5 of the straightener is lifted up and down, the rotation of the screw rod 2 is driven by a speed reducer fixed on the lower rack 5, after the equipment is used for a long time, the upper screw rod 2 and the nut 3 are easy to be blocked, thus seriously affecting the adjusting effect, especially on a large pipe and rod straightener, the blocking phenomenon is easy to occur due to the extremely large straightening force, in addition, the copper nut has limited bearing capacity and is not enough to bear the straightening force generated by a large pipe and rod. Disclosure of utility model In order to solve the problems, the utility model aims to provide a wedge-shaped lifting mechanism for a lower straightening roller seat of a metal tube bar oblique roller straightener, which is characterized in that two wedge-shaped blocks are arranged corresponding to a base through the arrangement of the base, and the two wedge-shaped blocks act to drive the base, the roller seat on the base and the lower straightening roller to act, so that the lower straightening roller is lifted, and the phenomenon of blocking in the prior art is avoided. The utility model adopts the following technical scheme to achieve the aim: The wedge-shaped lifting mechanism for the lower straightening roller seat of the metal pipe and bar inclined roller straightener comprises a roller seat, a base, inclined wedges I and II, a wedge lifting mechanism, a driving shaft, a front and back screw rod and a lower straightening roller, wherein the roller seat is used for supporting the lower straightening roller seat, the base is fixed at the lower part of the roller seat, the inclined wedges I and II are respectively arranged on the bottom surface of the base and correspond to the two inclined surfaces, the lower parts of the inclined wedges I and II are in threaded connection with the front and back screw rod, the inclined wedges I and II are combined together and are located in a slideway of the lower rack, one end of the front and back screw rod is matched with the driving shaft to form a structure that the driving shaft drives the front and back screw rod to rotate, so that the inclined wedges I and II move oppositely or back to drive the base and the roller seat and the lower straightening roller to lift. And the wedge I and the wedge II are respectively provided with a positive thread and a negative thread which are matched with the positive and negative thread screw rod. A sliding copper sleeve is arranged between the base and the lower frame of the straightener. According to the wedge-shaped lifting mechanism for the lower straightening roller seat of the metal tube bar oblique roller straightener, provided by the utility model, the two oblique wedges are pushed by the positive and negative threaded screw rod to move horizontally and axially, so that the structural design that the lower straightening roller seat of the straightening roller is lifted is realized, the straightening force born by the lower straightening roller seat of the straightening roller is transmitted to the lower frame machine through the two oblique wedges, and the problem of clamping resistance of a screw nut for adjusting the lifting on the lower straightening roller seat of the straightening roller after the straightening machine is used for a long time is solved. Drawings FIG. 1 is a schematic view of a roll seat of a lifting straightening roll adjusted by a screw nut of a conventional straightener. Fig. 2 is a schematic structural view of the present utility model. In the figure, 1, a speed reducer, 2, an adjusting screw rod, 3, an adjusting nut, 4, a roller seat, 5, a lower frame, 6, a locking cylinder, 7, a lower straightening roller, 8, a positive and negative screw rod, 9, a wedge I,10, a wedge II,11, a base, 12 and a transmission shaft. Detailed Description The utility model will now be described with reference to the accompanying drawings and specific embodiments: The wedge-shaped lifting mechanism for the lower straightening roller seat of the metal tube and bar inclined roller straightener is shown in fig. 1, a roller seat 4 for supporting the lower straightening roller seat is arranged corresponding to the lower straightening roller, a base 11 is fixed at the lower part of the roller seat 1, incli