CN220028448U - Flaring device of pipe expander - Google Patents

Abstract

The utility model discloses a flaring device of a pipe expander, which comprises a flaring seat, a flaring head movably arranged on the flaring seat, and a flaring head driving mechanism for punching the flaring head, wherein the flaring head driving mechanism comprises a sliding seat arranged on the flaring seat, a rotating shaft driving motor arranged on the sliding seat, a driving shaft transversely arranged on the sliding seat and driven by the rotating shaft driving motor, at least one eccentric wheel is arranged on the driving shaft, a roller wheel is sleeved on the eccentric wheel, and a rotating bearing is arranged between the eccentric wheel and the roller wheel. The utility model can reduce the abrasion loss during the impact of the expansion head through the rotation of the roller when the roller is stressed, thereby prolonging the service life of the structure and reducing the cost of later maintenance, and can be widely applied to the flaring field of pipe expander.

Description

Flaring device of pipe expander

Technical Field

The utility model relates to the field of tube expander, in particular to a flaring device of a tube expander.

Background

In the tube expander, the existing flaring device and the tube expanding mechanism are combined together and independently combined with the tube expanding mechanism, and the independent flaring device is flexible and convenient to adjust and gradually increases in use. The flaring device comprises a flaring seat, a flaring head and a flaring head driving mechanism, wherein the flaring head is movably connected to the flaring seat, the flaring head driving mechanism comprises a stamping mechanism and a translation mechanism, the stamping mechanism comprises a stamping driving mechanism, a stamping main shaft, eccentric wheels and mounting seats, two ends of the stamping main shaft are supported by the mounting seats in a rolling manner, the eccentric wheels are mounted on the stamping main shaft, the stamping driving mechanism is connected with the stamping main shaft and drives the stamping main shaft to rotate, and the translation mechanism comprises a translation driving mechanism which is connected with the mounting seats and drives the mounting seats to translate on the flaring seat. The structure is simple in structure and convenient to adjust, but the installation mode of the stamping main shaft and the eccentric wheel on the stamping mechanism ensures that the eccentric wheel is in contact with the expansion head and knocked at the same position when the expansion head is knocked, so that the eccentric wheel is seriously worn and has short service life. Meanwhile, the structure adopts a structure that the eccentric wheels are in one-to-one correspondence with the flaring heads, so that the precision requirements on manufacturing and installation are high, and the manufacturing cost can be increased.

Disclosure of Invention

The utility model aims to provide a flaring device of a pipe expander, which solves the problem that eccentric wheels of a stamping mechanism on the existing flaring device are easy to wear.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a pipe expander flaring device, includes the flaring seat, the movable mounting expands the head on the flaring seat for hit the head actuating mechanism that expands of pressing, expand first actuating mechanism including setting up the slide at the flaring seat, install the pivot driving motor on the slide, transversely set up the drive shaft by pivot driving motor drive on the slide, install an eccentric wheel at least in the drive shaft, the cover is equipped with the gyro wheel on the eccentric wheel, be provided with rolling bearing between eccentric wheel and the gyro wheel.

In order to facilitate the disassembly and the replacement, the eccentric wheel is connected with the driving shaft through a pin key.

In order to improve the wear resistance, the roller is made of SUJ2JIS high-carbon chromium bearing steel.

Preferably, the rotary bearing is a needle bearing.

In order to ensure the reliability of the impact, a plurality of eccentric wheels are arranged, the eccentric wheels are arranged on the driving shaft in an end-to-end mode, and the lengths of the eccentric wheels are matched with the total width of the multiple rows of flaring heads on the flaring seat.

The utility model has the beneficial effects that: according to the utility model, through changing the structure of the existing eccentric wheel, the original fixed point contact is changed into contact with any point on the whole surface of the roller, so that the abrasion degree of the eccentric wheel can be greatly reduced, and the service life is prolonged. Meanwhile, the rollers are arranged end to end, so that the contact reliability with the expanding head can be improved, and the problem that the eccentric wheel cannot act on the expanding head due to the assembly error of the existing eccentric wheel structure is avoided. The eccentric wheel of the structure is connected with the driving shaft by adopting the pin key, so that the eccentric wheel is convenient to assemble, disassemble and maintain.

The utility model will be described in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a front view of the head expanding driving mechanism in the present utility model.

Fig. 3 is a schematic perspective view of a driving shaft and its mounting structure according to the present utility model.

Detailed Description

As shown in fig. 1 to 3, an embodiment of a flaring device of a pipe expander includes a flaring seat 1, a flaring head 2 movably mounted on the flaring seat 1, and a specific mounting structure of the flaring head 2 can be the same as a flaring head mounting structure in a flaring device disclosed in chinese patent application No. 2021209278821, and is an existing structure, and will not be described in detail herein. The present utility model addresses the deficiencies of this patent by improving the head drive mechanism 3 of the impact head 2.

The flaring driving mechanism 3 comprises a sliding seat 31 arranged on the flaring seat 1, and the sliding seat 31 can move back and forth on the flaring seat 1 under the driving of a traversing motor 37. The rotary shaft driving motor 32 is mounted on the sliding seat 31, the driving shaft 33 is rotatably mounted below the sliding seat 31, a driving gear (not shown in the figure) is disposed at an output end of the rotary shaft driving motor 32, a driven gear 38 matched with the driving gear is disposed at one end of the driving shaft 33, and the rotary shaft driving motor 32 rotates to drive the driving shaft 33 to rotate. The driving shaft 33 is transversely arranged relative to the flaring seat 1, at least one eccentric wheel 34 is arranged on the driving shaft 33, and the eccentric wheel 34 is in pin key connection with the driving shaft 33 for convenient disassembly and assembly. The eccentric wheel 34 is driven to rotate by the driving shaft 33, so that the lower flaring head 2 is pressed, and the flaring head 2 moves downwards to finish the flaring action of the pipe expander.

In order to avoid the eccentric wheel 34 directly acting on the expanding head 2 to cause fixed point abrasion of the eccentric wheel 34 and influence the service life, the eccentric wheel 34 is sleeved with a roller 35, a rotary bearing 36 is arranged between the eccentric wheel 34 and the roller 35, the rotary bearing 36 is a needle bearing, and meanwhile, the roller 35 is made of SUJ2JIS high-carbon chromium bearing steel, so that the strength is improved. Through this structure, when gyro wheel 35 and expand head 2 during the effect, can produce relative rotation, reduce the wearing and tearing volume, simultaneously, because gyro wheel 35 is not a point and expands head 2 contact, but the arbitrary point on the round of gyro wheel 35 all probably contacts with expanding head 2, consequently, the local wearing and tearing volume is little to can guarantee to expand the downstream distance of head 2, accomplish the flaring smoothly.

Considering the reliability of the machining, a plurality of eccentric wheels 34 can be arranged according to the number of columns of the expanding heads 2, a plurality of eccentric wheels 34 are arranged on the driving shaft 33 in an end-to-end mode, each eccentric wheel 34 is provided with a roller 35, and the length of each roller 35 is consistent with that of each eccentric wheel 34. The length of the eccentric wheels 34 is matched with the total width of the rows of flaring heads 2 on the flaring seat 1. Thus, the processing is convenient, and the missing beating condition can be effectively avoided; meanwhile, when one of the rollers 35 is worn, one of the rollers can be detached for replacement, so that maintenance cost is saved; it is also possible to adopt a structure in which a plurality of rollers 35 are sleeved on one eccentric wheel 34 so as to facilitate replacement.

The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.

Claims (5)

1. The utility model provides a pipe expander flaring device, includes flaring seat (1), movable mounting is at flaring seat (1) on expand head (2) for beat head (2) expand head actuating mechanism (3), its characterized in that: the expanding head driving mechanism (3) comprises a sliding seat (31) arranged on the expanding seat (1), a rotating shaft driving motor (32) arranged on the sliding seat (31), a driving shaft (33) transversely arranged on the sliding seat (31) and driven by the rotating shaft driving motor (32), at least one eccentric wheel (34) is arranged on the driving shaft (33), a roller (35) is sleeved on the eccentric wheel (34), and a rotating bearing (36) is arranged between the eccentric wheel (34) and the roller (35).

2. The tube expander flaring device of claim 1, wherein: the eccentric wheel (34) is in pin-key connection with the driving shaft (33).

3. The tube expander flaring device of claim 1, wherein: the roller (35) is made of SUJ2JIS high-carbon chromium bearing steel.

4. The tube expander flaring device of claim 1, wherein: the rotary bearing (36) is a needle bearing.

5. The tube expander flaring device of claim 1, wherein: the eccentric wheels (34) are arranged in a plurality, the eccentric wheels (34) are arranged on the driving shaft (33) in an end-to-end connection mode, and the lengths of the eccentric wheels (34) are matched with the total width of the multi-row expanding heads (2) on the expanding seat (1).