CN213511696U

CN213511696U - Split type flexible inner tube of entry driving machine

Info

Publication number: CN213511696U
Application number: CN202022439515.5U
Authority: CN
Inventors: 张雄巍; 徐铮
Original assignee: Jiangyin Wenbin Machinery Manufacturing Co ltd
Current assignee: Jiangyin Wenbin Machinery Manufacturing Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-22
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a split type flexible inner tube of entry driving machine, including front end cover, middle sleeve, rear end cover and endotheca, all through the girth welding between front end cover and the middle sleeve, between middle sleeve and the rear end cover, the glide plane of flexible inner tube is formed jointly to the outer wall of middle sleeve and rear end cover after the welding, the glide plane is equipped with the wearing layer, the endotheca sets up in middle sleeve, the endotheca passes through the mode of girth welding and the welding of middle sleeve's inner tube wall. The utility model discloses a segmentation welding, the welding department all is equipped with the location step, has improved welding precision and welding strength greatly, and each segmentation adopts the material of different performance, has practiced thrift material cost under the operation requirement prerequisite that satisfies flexible inner tube.

Description

Split type flexible inner tube of entry driving machine

Technical Field

The utility model relates to a entry driving machine technical field, concretely relates to split type flexible inner tube of entry driving machine.

Background

The development machine is a comprehensive equipment which uses machinery to break rock, produce slag and support to implement continuous operation. The telescopic mechanism of the heading machine comprises a telescopic inner cylinder, a telescopic outer cylinder and a telescopic protection cylinder, wherein the telescopic inner cylinder and the telescopic outer cylinder are connected in a matched mode and can axially slide relative to each other, and the telescopic protection cylinder is sleeved outside the telescopic outer cylinder. The parts of the telescopic inner cylinder, which are matched with the telescopic outer cylinder, need to have very high finish and surface hardness to meet the requirement of telescopic in the telescopic outer cylinder, and the other non-critical parts of the telescopic inner cylinder do not have high requirements on the surface hardness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned not enough, provide a split type flexible inner tube of entry driving machine, adopt the segmentation welding, the welding department all is equipped with the location step, has improved welding precision and welding strength greatly, and each segmentation adopts the material of different performance, has practiced thrift material cost under the operation requirement prerequisite that satisfies flexible inner tube.

The purpose of the utility model is realized like this:

the utility model provides a split type flexible inner tube of entry driving machine, includes front end cover, intermediate sleeve, rear end cover and endotheca, all through the girth welding between front end cover and the intermediate sleeve, between intermediate sleeve and the rear end cover, the outer wall of intermediate sleeve and the outer wall of rear end cover form the glide plane of flexible inner tube jointly after the welding, the glide plane is equipped with the wearing layer, the endotheca sets up in the intermediate sleeve, the endotheca passes through the mode of girth welding and welds with the inner tube wall of intermediate sleeve.

Preferably, the middle sleeve is made of 27SiMn, the front end sleeve is made of ZG270-500, the inner sleeve is made of 45 steel, and the rear end sleeve is made of Q345A steel.

Preferably, the wear-resistant layer is a chromium alloy wear-resistant layer.

Preferably, the middle sleeve is correspondingly sleeved with a first positioning step, the rear end of the inner sleeve is in full contact with the step surface of the first positioning step, and the front end of the inner sleeve is welded with the inner cylinder wall of the middle sleeve in a circular seam welding mode.

Preferably, a second positioning step and a third positioning step are respectively arranged at two ends of the middle sleeve, a front end sleeve positioning part is arranged on the front end sleeve corresponding to the second positioning step, the right end of the front end sleeve positioning part extends into the middle sleeve and is contacted with the step surface of the second positioning step, and a front end sleeve inclined surface is arranged at the left end of the front end sleeve positioning part; the rear end sleeve is provided with a rear end sleeve positioning part corresponding to the third positioning step, the left end of the rear end sleeve positioning part extends into the middle sleeve and is in contact with the step surface of the third positioning step, and the right end of the rear end sleeve positioning part is provided with a rear end sleeve inclined surface.

Preferably, the two ends of the middle sleeve are provided with inclined grooves, a V-shape is formed between the inclined surface of the front end sleeve and the corresponding inclined port, and between the inclined surface of the rear end sleeve and the corresponding inclined port, and gaps are reserved between the bottom of the inclined surface of the front end sleeve and the bottom of the inclined port, and between the bottom of the inclined surface of the rear end sleeve and the bottom of the inclined port.

Preferably, the gap between the bottom of the inclined plane of the front end sleeve and the bottom of the inclined plane opening is a, and a is 5-8 mm; the gap between the bottom of the inclined plane of the rear end sleeve and the bottom of the inclined plane opening is also a, and a is 5-8 mm.

The utility model has the advantages that:

the utility model discloses a segmentation welding, the welding department all is equipped with the location step, has improved welding precision and welding strength greatly, and each segmentation adopts the material of different performance, has practiced thrift material cost under the operation requirement prerequisite that satisfies flexible inner tube.

Drawings

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

Fig. 2 is a schematic structural view of the front end cover.

Fig. 3 is a schematic structural view of the intermediate sleeve.

Fig. 4 is a schematic structural view of the rear end cover.

Wherein: a front end sleeve 1; the front end is sleeved with a positioning part 1.1; the front end is sleeved with an inclined plane 1.2; an intermediate sleeve 2; a first positioning step 2.1; a second positioning step 2.2; a third positioning step 2.3; a rear end sleeve 3; the rear end is sleeved with a positioning part 3.1; the rear end is sleeved with an inclined plane 3.2; an inner sleeve 4; and a wear resistant layer 5.

Detailed Description

Referring to fig. 1-4, the utility model relates to a split type flexible inner tube of entry driving machine, including front end cover 1, intermediate sleeve 2, rear end cover 3 and endotheca 4, all through the girth welding between front end cover 1 and the intermediate sleeve 2, between intermediate sleeve 2 and the rear end cover 3, the outer wall of intermediate sleeve 2 and the outer wall of rear end cover 3 form the glide plane of flexible inner tube jointly after the welding, the glide plane is equipped with wearing layer 5, endotheca 4 sets up in intermediate sleeve 2, endotheca 4 welds with the inner tube wall of intermediate sleeve 2 through the mode of girth welding.

The front end sleeve 1, the middle sleeve 2, the rear end sleeve 3 and the inner sleeve 4 are made of different materials, wherein the middle sleeve 2 is used as a key part of the whole telescopic inner cylinder and is required to have high finish degree and surface hardness, so that 27SiMn is selected, the material is good in welding performance, high in hardenability and high in strength and wear resistance, the rest parts are non-key parts and are only required to have good welding performance, the front end sleeve 1 is ZG270-500, the inner sleeve 4 is made of 45 steel, and the rear end sleeve 3 is made of Q345A steel.

The wear-resistant layer 5 is a chromium alloy wear-resistant layer, so that the wear resistance of the sliding surface is effectively improved, the use requirement of the telescopic inner cylinder is met, and the service life of the telescopic inner cylinder is prolonged.

The middle sleeve 2 is provided with a first positioning step 2.1 corresponding to the inner sleeve 4, the rear end of the inner sleeve 4 is fully contacted with the step surface of the first positioning step 2.1, and the front end of the inner sleeve 4 is welded with the inner cylinder wall of the middle sleeve 2 in a circular seam welding mode.

A second positioning step 2.2 and a third positioning step 2.3 are respectively arranged at two ends of the middle sleeve 2, a front end sleeve positioning part 1.1 is arranged on the front end sleeve 1 corresponding to the second positioning step 2.2, the right end of the front end sleeve positioning part 1.1 extends into the middle sleeve 2 and is contacted with the step surface of the second positioning step 2.2, and a front end sleeve inclined surface 1.2 is arranged at the left end of the front end sleeve positioning part 1.1; the rear end sleeve 3 is provided with a rear end sleeve positioning part 3.1 corresponding to the third positioning step 2.3, the left end of the rear end sleeve positioning part 3.1 extends into the middle sleeve 2 and contacts with the step surface of the third positioning step 2.3, and the right end of the rear end sleeve positioning part 3.1 is provided with a rear end sleeve inclined surface 3.2.

The two ends of the middle sleeve 2 are provided with inclined grooves, V-shaped openings are formed between the front end sleeve inclined surface 1.2 and the corresponding inclined port and between the rear end sleeve inclined surface 3.2 and the corresponding inclined port, the angle of the V-shaped opening is b, and the angle of the b is 40 degrees. Gaps are reserved between the bottom of the front end sleeve inclined plane 1.2 and the bottom of the slope opening and between the bottom of the rear end sleeve inclined plane 3.2 and the bottom of the slope opening.

The gap between the bottom of the inclined plane 1.2 of the front end sleeve and the bottom of the inclined plane opening is a, and a is 5-8 mm; the gap between the bottom of the inclined plane 3.2 of the rear end sleeve and the bottom of the inclined opening is also a, and a is 5-8 mm.

The welding method comprises the following steps:

the inner sleeve 3 is placed into the middle sleeve 2, the right end part of the inner sleeve 3 is abutted against the step surface of the middle sleeve 2, the left end part of the inner sleeve 3 is provided with a bevel, and the inner sleeve is fixed in the middle sleeve 2 in a ring welding mode; correspondingly extending the front end sleeve 1 and the rear end sleeve 3 into the middle sleeve 2, respectively forming V-shaped annular seams between the front end sleeve 1 and the middle sleeve 2 and between the middle sleeve 2 and the rear end sleeve 3, and fixing the annular seams through annular welding; and after welding, the craters are polished to keep the sliding surface parallel and level, and the alloy wear-resistant layer is welded on the sliding surface to enhance the wear resistance of the sliding surface.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a split type flexible inner tube of entry driving machine which characterized in that: including front end housing (1), middle sleeve (2), rear end housing (3) and endotheca (4), all through the girth welding between front end housing (1) and middle sleeve (2), between middle sleeve (2) and rear end housing (3), the slip plane of flexible inner tube is formed jointly to the outer wall of middle sleeve (2) and the outer wall of rear end housing (3) after the welding, the slip plane is equipped with wearing layer (5), endotheca (4) set up in middle sleeve (2), endotheca (4) are through the mode of girth welding and the inner tube wall welding of middle sleeve (2).

2. The split type telescopic inner cylinder of the heading machine according to claim 1, wherein: the middle sleeve (2) is made of 27SiMn, the front end sleeve (1) is made of ZG270-500, the inner sleeve (4) is made of 45 steel, and the rear end sleeve (3) is made of Q345A steel.

3. The split type telescopic inner cylinder of the heading machine according to claim 1, wherein: the wear-resistant layer (5) is a chromium alloy wear-resistant layer.

4. The split type telescopic inner cylinder of the heading machine according to claim 1, wherein: the middle sleeve (2) is provided with a first positioning step (2.1) corresponding to the inner sleeve (4), the rear end of the inner sleeve (4) is in full contact with the step surface of the first positioning step (2.1), and the front end of the inner sleeve (4) is welded with the inner cylinder wall of the middle sleeve (2) in a girth welding mode.

5. The split type telescopic inner cylinder of the heading machine according to claim 4, wherein: a second positioning step (2.2) and a third positioning step (2.3) are respectively arranged at two ends of the middle sleeve (2), a front end sleeve positioning part (1.1) is arranged on the front end sleeve (1) corresponding to the second positioning step (2.2), the right end of the front end sleeve positioning part (1.1) extends into the middle sleeve (2) and is contacted with the step surface of the second positioning step (2.2), and a front end sleeve inclined surface (1.2) is arranged at the left end of the front end sleeve positioning part (1.1); the rear end sleeve (3) is provided with a rear end sleeve positioning part (3.1) corresponding to the third positioning step (2.3), the left end of the rear end sleeve positioning part (3.1) extends into the middle sleeve (2) and is in contact with the step surface of the third positioning step (2.3), and the right end of the rear end sleeve positioning part (3.1) is provided with a rear end sleeve inclined surface (3.2).

6. The split type telescopic inner cylinder of the heading machine according to claim 5, wherein: the both ends of middle sleeve (2) are equipped with oblique groove, all form the V-arrangement between front end cover inclined plane (1.2) and the slope mouth that corresponds, between rear end cover inclined plane (3.2) and the slope mouth that corresponds, and all leave the clearance between front end cover inclined plane (1.2) bottom and the slope mouth bottom, between rear end cover inclined plane (3.2) bottom and the slope mouth bottom.

7. The split type telescopic inner cylinder of the heading machine according to claim 6, wherein: the gap between the bottom of the inclined plane (1.2) of the front end sleeve and the bottom of the inclined plane opening is a, and a is 5-8 mm; the gap between the bottom of the inclined plane (3.2) of the rear end sleeve and the bottom of the inclined plane opening is a, and a is 5-8 mm.