CN112833185A

CN112833185A - Tensile revolving body

Info

Publication number: CN112833185A
Application number: CN202110160312.9A
Authority: CN
Inventors: 葛岩; 倪坤; 苏伟
Original assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd; Jiangsu XCMG Construction Machinery Institute Co Ltd
Current assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd; Jiangsu XCMG Construction Machinery Institute Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-05-25
Anticipated expiration: 2041-02-05
Also published as: CN112833185B

Abstract

The invention discloses a tensile revolving body which comprises a revolving inner core, wherein a revolving outer sleeve component is rotatably sleeved on the periphery of the revolving inner core, the revolving inner core and the revolving outer sleeve component are respectively used for being connected with a pipeline, and the revolving inner core and the revolving outer sleeve component rotate relatively under the action of pipeline torsion. The invention has the advantages of realizing the function of the single-channel rotary joint, effectively eliminating the relative acting force between the pull pipelines and avoiding the integral verticality error of the working device caused by the pipeline torsion acting force.

Description

Tensile revolving body

Technical Field

The invention relates to the technical field of rotary bodies for engineering machinery, in particular to a tensile rotary body.

Background

The double-wheel slot milling machine is underground continuous wall construction equipment, the working device of the double-wheel slot milling machine needs to be arranged in a slurry environment for working, the construction depth is generally 0-150m at present, about 10 m of water column is 1bar, namely the slurry pressure outside a revolving body is 0-15 bar. Meanwhile, the mud and the crushed stone pumped by the mud pump are arranged in the mud pipeline, and the mud pressure in the mud pipeline is 0-35 bar.

The double-wheel slot milling machine is composed of a middle main hoisting point, wherein one side of the middle main hoisting point is provided with a power pipeline, the other side corresponding to the power pipeline is provided with a slurry pipeline, the power pipeline is mainly a hydraulic pipe bank composed of oil hydraulic pipelines, and the slurry pipeline is mainly formed by connecting a plurality of sections of slurry pipelines in series. The lengths of the pipelines on the two sides are 30m-200 m. The pipelines on the two sides need to be stressed consistently, so that the construction precision control of the double-wheel slot milling machine can be better ensured. Because the installation angle of the pipeline is different between the assembling state and the construction state of the double-wheel slot milling machine, the slurry pipeline has certain torsional acting force when entering the construction state after the installation is finished.

Because there is no revolution body between the pipelines, the hard connection between the pipelines is adopted. Resulting in that a certain torsion force exists in the pipeline and cannot be removed

Disclosure of Invention

The invention aims to provide a tensile revolving body which can realize the function of a single-passage revolving joint, effectively eliminate the relative acting force between tension pipelines and avoid the integral verticality error of a working device caused by the pipeline torsion acting force.

The invention adopts the following technical scheme for realizing the aim of the invention:

the invention provides a tensile revolving body which comprises a rotary inner core, wherein the periphery of the rotary inner core is rotatably sleeved with a rotary outer sleeve component, the rotary inner core and the rotary outer sleeve component are respectively used for being connected with a pipeline, and the rotary inner core and the rotary outer sleeve component rotate relatively under the action of pipeline torsion.

Further, a sealing assembly is arranged between the rotating inner core and the rotating outer sleeve assembly.

Furthermore, the rotating outer sleeve component comprises a rotating outer sleeve, a sealing bearing ring, a connecting outer ring and a front end sleeve which are sequentially connected.

Further, the seal assembly includes at least one first rotary seal disposed between the seal carrier ring and the rotary inner core, and at least one second rotary seal disposed between the front end sleeve and the rotary inner core.

Further, protective sleeves are respectively arranged between the seal bearing ring and the rotary inner core and between the front end sleeve and the rotary inner core, the protective sleeves are sleeved on the periphery of the rotary inner core, the first rotary seal is located between the protective sleeves and the seal bearing ring, and the second rotary seal is located between the protective sleeves and the front end sleeve.

Furthermore, a side face of the sealing bearing ring, which is contacted with the protective sleeve, and a side face of the front end sleeve, which is contacted with the protective sleeve, are respectively provided with a sealing detection groove, and the front end sleeve and the protective sleeve are respectively provided with a mud discharge channel which is communicated with the sealing detection groove.

Furthermore, a thrust bearing and a roller bearing are arranged between the rotating inner core and the seal bearing ring at intervals up and down.

Further, static seals are respectively arranged between the front end sleeve and the connecting outer ring and between the seal bearing ring and the rotating outer sleeve.

Further, the mud discharging channel is detachably connected with a mud discharging plug.

Further, one side that rotatory overcoat deviates from sealed carrier ring is provided with rotatory overcoat mounting flange, rotatory inner core is close to the one end of front end cover is provided with rotatory inner core mounting flange.

The invention has the following beneficial effects:

the function of a single-channel rotary joint can be realized, the relative acting force between the pull pipelines is effectively eliminated, and the integral verticality error of the working device caused by the pipeline torsion acting force is avoided.

Drawings

Fig. 1 is a schematic structural view of an appearance of a tensile rotary body according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a tensile rotary body according to an embodiment of the present invention.

Detailed Description

The invention is further described with reference to specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 and 2, the invention provides a tensile revolving body, which comprises a revolving outer sleeve connecting flange 1, a first revolving seal 2, a first static seal 3, a second revolving seal 4, a seal bearing ring 5, a connecting outer ring 6, a thrust bearing 7, a spacer sleeve 8, a roller bearing 9, a second static seal 10, a front end sleeve 11, a revolving inner core 12, a revolving inner core connecting flange 13 and a revolving outer sleeve 14.

The tensile revolving body is a single channel, a rotary outer sleeve component is formed by a rotary outer sleeve connecting flange 1, a rotary outer sleeve 14, a sealing bearing ring 5, a connecting outer ring 6 and a front end sleeve 11, the rotary outer sleeve component and a rotary inner core 12 are respectively connected with an upper pipeline and a lower pipeline, and the rotary outer sleeve component and the rotary inner core rotate relatively under the action of pipeline torsion.

Specifically, the rotary outer sleeve 14, the seal carrier ring 5, the connection outer ring 6, and the front end sleeve 11 are connected by long bolts.

In order to close the inside mud from entering the outside, while avoiding the outside mud from entering the inside, a sealing assembly is provided between the rotating inner core 12 and the rotating outer sleeve assembly: specifically, the seal assembly comprises three first rotary seals 2 arranged between a seal bearing ring 5 and a rotary inner core 12 and three second rotary seals 4 arranged between a front end sleeve 11 and the rotary inner core 12, wherein the first rotary seal 2 positioned at the lower part is used for preventing mud inside a tensile revolving body from reaching the position shown by a thrust bearing 7, a seal detection groove 15 is arranged between the two first rotary seals 2, the second rotary seal 4 positioned at the upper part is used for preventing external mud from entering the position shown by a roller bearing 9, and a seal detection groove 15 is arranged between the two second rotary seals 4.

In order to prevent the rotary seal 2 from directly wearing the rotary inner core 12, protective sleeves 18 are respectively arranged between the seal carrier ring 5 and the rotary inner core 12, and between the front end sleeve 11 and the rotary inner core 12.

The thrust bearing 7 and the shoulder matched with the thrust bearing are used for bearing the tensile force between the upper pipeline and the lower pipeline and preventing the components rotating relatively from being separated.

One side of the rotary outer sleeve 14 departing from the seal bearing ring 5 is welded with a rotary outer sleeve connecting flange 1, one end of the rotary inner core 12 close to the front end sleeve 11 is connected with a rotary inner core connecting flange 13 in a threaded mode, and the rotary outer sleeve assembly and the rotary inner core 12 are connected with an upper pipeline and a lower pipeline conveniently through the rotary outer sleeve connecting flange 1 and the rotary inner core connecting flange 13.

The roller bearing 9 and the thrust bearing 7 are mutually combined to support the rotating outer sleeve component, and are axially limited by the aid of snap rings on two sides and shoulders.

Set up in sealed bearing ring 5 and the sealed detection groove 15 on the front end cover 11, put mud end cap 16 and put mud passageway 17, sealed detection groove 15 with put mud passageway 17 and be linked together, put mud end cap 16 and put mud passageway 17 threaded connection, if inside has mud to flow out when putting mud end cap 16 and unscrewing, it has the damage to explain the rotary seal of corresponding position department, need change rotary seal.

A second static seal 10 is arranged between the front end sleeve 11 and the connecting outer ring 6, the second static seal 10 prevents external mud from entering from a gap between the front end sleeve 11 and the connecting outer ring 6, a first static seal 3 is arranged between the seal bearing ring 5 and the rotating outer sleeve 14, and the static seals are used for preventing the external mud from entering the rotating inner core 12 and the positions shown by the thrust bearing 7 and the roller bearing 9 along the gap between the rotating outer sleeve 14, the seal bearing ring 5, the connecting outer ring 6 and the front end sleeve 11.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a tensile solid of revolution which characterized in that, including rotatory inner core, the rotatable rotatory overcoat subassembly that has cup jointed in rotatory inner core's periphery, rotatory inner core with rotatory overcoat subassembly is used for being connected with a pipeline respectively, and under the pipeline torsional action force, rotatory inner core with rotatory overcoat subassembly takes place relative rotation.

2. A tensile rotor according to claim 1, wherein a seal member is provided between said rotating core and said rotating shell member.

3. The tension-resistant revolving body according to claim 2, wherein said revolving jacket assembly comprises a revolving jacket, a seal carrier ring, a connecting outer ring and a front end sleeve connected in sequence.

4. The tension rotor according to claim 3, wherein said seal assembly includes at least one first rotary seal disposed between said seal carrier ring and said rotary core, and at least one second rotary seal disposed between said front end sleeve and said rotary core.

5. The tension revolving body according to claim 4, wherein a protective sleeve is disposed between the seal bearing ring and the revolving inner core and between the front end sleeve and the revolving inner core, respectively, the protective sleeve is sleeved on the outer periphery of the revolving inner core, the first revolving seal is disposed between the protective sleeve and the seal bearing ring, and the second revolving seal is disposed between the protective sleeve and the front end sleeve.

6. The tensile rotary body according to claim 5, wherein a side surface of the seal carrier ring contacting the protective casing and a side surface of the front end sleeve contacting the protective casing are respectively provided with a seal detection groove, and the front end sleeve and the protective casing are respectively provided with a mud discharge passage communicating with the seal detection groove.

7. The tension-resistant revolving body according to claim 6, wherein a mud-discharging plug is detachably connected to the mud-discharging passage.

8. The tension-resistant revolving body according to claim 3, wherein a thrust bearing and a roller bearing are arranged between the revolving inner core and the seal bearing ring at intervals up and down.

9. The tension-resistant revolving body according to claim 3, wherein static seals are provided between the front end sleeve and the connecting outer ring and between the seal bearing ring and the revolving outer sleeve, respectively.

10. The tension revolving body of claim 3, wherein a revolving outer casing mounting flange is provided on a side of the revolving outer casing facing away from the seal bearing ring, and a revolving inner core mounting flange is provided on an end of the revolving inner core near the front end casing.