CN212310652U

CN212310652U - Energy-saving and environment-friendly expanding equipment for stainless steel pipes

Info

Publication number: CN212310652U
Application number: CN202020256440.4U
Authority: CN
Inventors: 胡平
Original assignee: Zhejiang Zhengye Special Steel Co ltd
Current assignee: Zhejiang Zhengye Special Steel Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2021-01-08
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses an energy-saving and environment-friendly diameter expanding device for stainless steel pipes, the diameter expanding mechanism of which comprises an end cap, a taper sleeve, an expanding sleeve and a lubricating disc, the rear end of a pull rod is provided with a thread section, the taper sleeve is screwed in the thread section, the front end of the taper sleeve is provided with a step, the rear end of the expanding sleeve is provided with a socket, the front end of the expanding sleeve is also provided with a wedge block in an array manner, the expanding sleeve is inserted on the pull rod, the rear end of the expanding sleeve is abutted against the taper sleeve, each wedge block is matched with a corresponding groove body on the pull rod, a leaf spring is arranged between the front end of the end cap and the expanding sleeve, the lubricating disc is arranged at the front end of the expanding sleeve, the inside of the lubricating disc is also provided with an annular lubricating oil storage cavity and an oil pump, the front end array of the lubricating disc is provided with a plurality of concave holes, a lubricating oil spray nozzle is fixed in each concave hole, the middle part of the outer side of the, the taper sleeve and the expansion sleeve in the expanding mechanism are more reliable in fixing mode.

Description

Energy-saving and environment-friendly expanding equipment for stainless steel pipes

Technical Field

The utility model relates to an energy-concerving and environment-protective type hole enlargement equipment that nonrust steel pipe was used.

Background

The diameter expanding equipment for the stainless steel tube in the prior art mainly has the following two defects: in the diameter expanding process, whether the lubricating oil is smeared in place cannot be observed, the lubricating oil is often processed by adopting an excessive smearing method, and the redundant lubricating oil is finally washed by a large amount of clear water, so that the environment is not protected; on the other hand, the diameter expanding mechanism of the diameter expanding equipment is not reasonable enough in structural design, faults are often generated, and frequent shutdown maintenance and rework lead to waste of a large amount of energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an energy-saving and environment-friendly expanding device for stainless steel pipes.

The technical scheme of the utility model is that: an energy-saving and environment-friendly diameter expanding device for stainless steel pipes comprises a pull rod driving mechanism, a steel pipe fixing mechanism and a steel pipe supporting mechanism, wherein the pull rod driving mechanism is connected with a pull rod, the pull rod is fixedly provided with the diameter expanding mechanism, the diameter expanding mechanism comprises an end cap, a taper sleeve, an expansion sleeve and a lubricating disc, the rear end of the pull rod is provided with a threaded section, the taper sleeve is screwed into the threaded section, the end cap is screwed on the rear end of the taper sleeve and covers part of the taper sleeve, the front end of the taper sleeve is provided with a two-section tapered part, the front end of the tapered part is provided with a step, the rear end of the expansion sleeve is provided with a socket corresponding to the shape of the tapered part, the front end of the expansion sleeve is arrayed with wedges, the front end of the pull rod is also provided with grooves corresponding to the wedges, the expansion sleeve is inserted on the pull rod and the rear end of the expansion sleeve is abutted to the taper sleeve, and each wedge, the front end of end cap reaches still all have many to the slot that corresponds on the rear end of cover that rises, be provided with the leaf spring between each pair of corresponding slot, the lubrication plate sets up in the front end of cover that rises, the lubrication plate is fixed mutually with pull rod and cover that rises respectively through a plurality of stock bolts, the inside of lubrication plate still is equipped with an annular lubricating oil storage chamber and an oil pump, the front end of lubrication plate is frustum form, the front end array of lubrication plate has a plurality of shrinkage pools, each be fixed with a lubricating oil shower nozzle in the shrinkage pool, each lubricating oil shower nozzle through connecting pipe, oil pump with the lubricating oil storage chamber is connected, lubrication plate outside middle part still has the round recess, the recess internal fixation has the sponge ring.

Furthermore, a gasket is arranged at the joint of the inner end of the end cap and the taper sleeve.

Furthermore, an elastic buffer cushion is arranged between the lubricating disc and the expansion sleeve.

Furthermore, the front end of the lubricating disc is also provided with an oil filling channel, and the oil filling channel is connected with the lubricating oil storage cavity.

Furthermore, a sealing plug is buckled at the opening of the oil injection channel.

The utility model has the advantages that: the utility model discloses can guarantee the loss and the waste of lubricated prerequisite decline lubricating oil, simultaneously, taper sleeve in the hole enlargement mechanism, the fixed mode of cover that rises are more reliable, are difficult for producing the displacement, in addition, have set up the leaf spring of stress relief between end cap and the cover that rises, avoid the expand tube in-process to produce the accident and shut down the maintenance, reduce the energy consumption.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a plan view of the lubricating disk of the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Referring to fig. 1 and 2, an energy-saving and environment-friendly diameter expanding device for stainless steel pipes comprises a pull rod driving mechanism, a steel pipe fixing mechanism and a steel pipe supporting mechanism, wherein the pull rod 1 driving mechanism is connected with a pull rod 1, and the diameter expanding mechanism is fixed on the pull rod 1;

the expanding mechanism comprises an end cap 2, a taper sleeve 3, an expansion sleeve 4 and a lubricating disc 5;

the rear end of the pull rod 1 is provided with a threaded section 6, the taper sleeve 3 is screwed into the threaded section 6, the end cap 2 is screwed at the rear end of the taper sleeve 3 and covers part of the taper sleeve 3, and a gasket is arranged at the joint of the inner end of the end cap 2 and the taper sleeve 3, so that the positioning reliability of the taper sleeve 3 is ensured, and the taper sleeve 3 cannot be displaced;

the front end of the taper sleeve 3 is provided with a two-section type taper part, the front end of the taper part is provided with a step 7, the rear end of the expansion sleeve 4 is provided with a socket corresponding to the shape of the taper part, the front end of the expansion sleeve 4 is provided with a wedge block 8 in an array mode, the front end of the pull rod 1 is also provided with a groove body corresponding to the wedge block 8, the expansion sleeve 4 is inserted into the pull rod 1, the rear end of the expansion sleeve 4 is abutted against the taper sleeve 3, and each wedge block 8 is matched with the corresponding groove body, so that the positioning reliability of the expansion sleeve 4 is ensured, and the expansion sleeve 4 cannot be displaced towards the direction of the taper sleeve 3 in the diameter expansion process;

the front end of the end cap 2 and the rear end of the expansion sleeve 4 are provided with a plurality of pairs of corresponding slots, and a plate spring 9 is arranged between each pair of corresponding slots, so that the structure mainly aims at eliminating the stress between the expansion sleeve 4 and the steel pipe after the expansion is finished and avoiding the damage to an expansion mechanism;

the lubricating disc 5 is arranged at the front end of the expansion sleeve 4, the lubricating disc 5 is respectively fixed with the pull rod 1 and the expansion sleeve 4 through a plurality of long rod bolts, and an elastic buffer cushion 10 is further arranged between the lubricating disc 5 and the expansion sleeve 4, so that the lubricating disc 5 is prevented from being damaged due to the fact that the expansion sleeve 4 directly impacts the lubricating disc 5; an annular lubricating oil storage cavity 11 and an oil pump 12 are further arranged inside the lubricating disc 5, the front end of the lubricating disc 5 is in a frustum shape, a plurality of concave holes 13 are arrayed at the front end of the lubricating disc 5, a lubricating oil spray head 14 is fixed in each concave hole 13, each lubricating oil spray head 14 is connected with the lubricating oil storage cavity 11 through a connecting pipe and the oil pump 12, a circle of groove is further formed in the middle of the outer side of the lubricating disc 5, a sponge ring 15 is fixed in each groove, an oil filling channel 16 is further arranged at the front end of the lubricating disc 5, the oil filling channel 16 is connected with the lubricating oil storage cavity 11, and a sealing plug 17 is further buckled at an opening of the oil filling channel 16; the above structure plays a role: in the diameter expanding process, lubricating oil is sprayed to the inner wall of the stainless steel pipe through gaps among the lubricating oil spray nozzles 14 of the lubricating disc 5, the sponge rings 15 protrude out of the periphery of the lubricating disc 5, the lubricating oil is uniformly coated, redundant lubricating oil is absorbed, and meanwhile, redundant lubricating oil is temporarily stored and coated on the inner wall of the subsequent stainless steel pipe, so that the loss and waste of the lubricating oil are reduced on the premise of ensuring the lubrication.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an energy-concerving and environment-protective type diameter-expanding equipment that nonrust steel pipe was used, includes pull rod actuating mechanism, steel pipe fixed establishment and steel pipe supporting mechanism, pull rod actuating mechanism is connected with the pull rod, be fixed with the diameter-expanding mechanism on the pull rod, its characterized in that: the diameter expanding mechanism comprises an end cap, a taper sleeve, an expansion sleeve and a lubricating disc, wherein the rear end of the pull rod is provided with a threaded section, the taper sleeve is screwed in the threaded section, the end cap is screwed on the rear end of the taper sleeve and covers part of the taper sleeve, the front end of the taper sleeve is provided with a two-section type tapered part, the front end of the tapered part is provided with a step, the rear end of the expansion sleeve is provided with a socket corresponding to the shape of the tapered part, the front end of the expansion sleeve is provided with a wedge block in an array manner, the front end of the pull rod is also provided with a groove body corresponding to the wedge block, the expansion sleeve is inserted on the pull rod, the rear end of the expansion sleeve is abutted against the taper sleeve, each wedge block is matched with the corresponding groove body, the front end of the end cap and the rear end of the expansion sleeve are also provided with a plurality of pairs of corresponding slots, a leaf spring is arranged between each pair of corresponding slots, the lubricating disc is arranged at the front end of the expansion sleeve, and the lubricating, the inside of lubricating disc still is equipped with an annular lubricating oil and stores chamber and an oil pump, the front end of lubricating disc is the frustum form, the front end array of lubricating disc has a plurality of shrinkage pools, each the shrinkage pool internal fixation has a lubricating oil shower nozzle, each the lubricating oil shower nozzle pass through connecting pipe, oil pump with the lubricating oil stores the chamber and is connected, lubricating disc outside middle part still has the round recess, the recess internal fixation has the sponge ring.

2. The energy-saving and environment-friendly diameter expanding device for the stainless steel pipe according to claim 1, characterized in that: and a gasket is also arranged at the joint of the inner end of the end cap and the taper sleeve.

3. The energy-saving and environment-friendly diameter expanding device for the stainless steel pipe according to claim 1, characterized in that: an elastic buffer cushion is arranged between the lubricating disc and the expansion sleeve.

4. The energy-saving and environment-friendly diameter expanding device for the stainless steel pipe according to claim 1, characterized in that: the front end of the lubricating disc is also provided with an oil filling channel, and the oil filling channel is connected with the lubricating oil storage cavity.

5. The energy-saving and environment-friendly diameter expanding device for the stainless steel pipe according to claim 4, characterized in that: and a sealing plug is buckled at the opening of the oil injection channel.