阅读说明：本技术 一种有限作业空间内管道输送装置 (Pipeline conveying device in limited operation space ) 是由 米莲 李香薇 张远征 闫洞宾 董亚茹 郭超 高美丽 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种有限作业空间内管道输送装置,包括竖直安装于底座上的机架,于所述机架上沿其竖向间隔活动连接有两输送辊,各所述输送辊的外周面为内凹的圆弧面,于输送辊的轴向两端活动连接有可改变所述圆弧面曲率的曲率调节机构,于两输送辊之间设有弹性收紧机构,且两输送辊中至少其一经驱动机构驱动而滚动,以构成对卡置于两输送辊之间并与两输送辊的圆弧面相适配的管道的输送。本发明具有节省人力、物力且无需整条待更换管线所在的路面破除,并在操作过程中避免扬尘的特点。本发明适用于地沟内有限作业空间敷设的管道的更换。(The invention discloses a pipeline conveying device in a limited operation space, which comprises a rack vertically arranged on a base, wherein two conveying rollers are movably connected to the rack at intervals along the vertical direction of the rack, the peripheral surface of each conveying roller is an inwards concave arc surface, curvature adjusting mechanisms capable of changing the curvature of the arc surface are movably connected to two axial ends of each conveying roller, an elastic tightening mechanism is arranged between the two conveying rollers, and at least one of the two conveying rollers is driven by a driving mechanism to roll so as to form the conveying of a pipeline clamped between the two conveying rollers and matched with the arc surfaces of the two conveying rollers. The invention has the characteristics of saving manpower and material resources, avoiding breaking the whole road surface where the pipeline to be replaced is positioned, and avoiding raising dust in the operation process. The invention is suitable for replacing the pipeline laid in the limited operation space in the trench.)

1. A pipeline conveying device in a limited operation space is characterized in that: the conveying device comprises a frame vertically installed on a base, wherein two conveying rollers are movably connected to the frame at intervals along the vertical direction of the frame, the outer peripheral surface of each conveying roller is an inwards concave arc surface, curvature adjusting mechanisms capable of changing the curvature of the arc surface are movably connected to two axial ends of each conveying roller, an elastic tightening mechanism is arranged between the two conveying rollers, at least one of the two conveying rollers is driven by a driving mechanism to roll, and therefore conveying of a pipeline which is clamped between the two conveying rollers and matched with the arc surfaces of the two conveying rollers is achieved.

2. A pipeline transport apparatus in a confined space as set forth in claim 1, wherein: the conveying roller comprises a sleeve body which is sleeved outside the rotating shaft and the middle of the sleeve body is fixedly connected with the rotating shaft, the sleeve body is overlapped with the axis of the rotating shaft, two ends of the rotating shaft are respectively and rotatably connected with connecting blocks, and each connecting block is respectively and movably connected with the rack.

3. A pipeline transport apparatus in a confined space as set forth in claim 2, wherein: the end parts of two ends of the axis of the sleeve body are respectively composed of a plurality of elastic variable-curvature arc-shaped blades, and the outer surface of the curvature adjusting mechanism is abutted against the inner surfaces of the corresponding variable-curvature arc-shaped blades.

4. A pipeline transport apparatus in a confined space as claimed in claim 3, wherein: the variable-curvature arc-shaped blades positioned on the same side are connected into a whole through an elastic binding mechanism arranged on the sleeve body.

5. A pipeline transport apparatus in a confined space as set forth in claim 4 wherein: the elastic binding mechanism comprises an installation block formed on the inner wall of the variable-curvature arc blade, the installation block on the variable-curvature arc blade on the same side forms an annular structure, the annular structure is superposed with the axis of the sleeve body, a plurality of annular clamping grooves are formed in the inner wall of the annular structure along the axial direction of the sleeve body, annular springs are respectively assembled in the annular clamping grooves, and the central lines of the annular springs are superposed with the axis of the sleeve body.

6. A pipeline transport apparatus in a confined space as claimed in claim 3, wherein: each curvature adjusting mechanism comprises an adjusting platform in threaded connection with the rotating shaft, the circumferential surface of each adjusting platform is attached to the inner surface of the variable-curvature arc-shaped blade on the corresponding side, and the curvature of the circumferential surface of each adjusting platform is gradually increased inwards along the axial direction of the sleeve body.

7. A pipeline transport apparatus in a confined space as set forth in claim 2, wherein: the elastic tightening mechanism comprises a hard spring arranged between connecting blocks at the same sides of the two rotating shafts, adjusting components are connected to two ends of the hard spring respectively, and one end, far away from the hard spring, of each adjusting component is fixed to the corresponding connecting block.

8. A pipeline transport apparatus in a confined space as claimed in claim 7, wherein: the adjusting assembly comprises a connecting seat arranged on the connecting block, an adjusting rod vertically extending to the hard spring is rotatably connected to the connecting seat through a bearing assembled in the connecting seat, and one end, far away from the connecting seat, of the adjusting rod is in threaded connection with a threaded sleeve fixed at the end of the hard spring.

9. A pipeline transport apparatus in a confined space as set forth in claim 2, wherein: and a plurality of strip-shaped holes are vertically arranged at the position corresponding to the connecting block on the rack, each strip-shaped hole vertically extends, and the connecting block is connected with the rack in a sliding manner through fixing pins penetrating through the connecting block and the corresponding strip-shaped holes.

10. A pipeline transport apparatus in a confined space as set forth in claim 1, wherein: and a rubber layer is bonded on the peripheral surface of the rubber pad of the conveying roller.

Technical Field

The invention belongs to the technical field of replacement of pipelines laid in trenches, and particularly relates to a pipeline conveying device in a limited operation space.

Background

When a steam pipeline laid in a trench is replaced by a high-temperature water pipeline, the traditional method comprises the following steps: pavement demolition → earthwork excavation → trench cover plate lifting → demolition of the original steam heat preservation pipe and bracket → laying of sand cushion layer → laying of buried heat preservation pipe → back filling of sand, soil → laying of trench cover plate → pavement restoration. The traditional operation method has more defects, not only needs a great amount of manpower and material resource consumption to simultaneously operate, but also is not beneficial to the optimal allocation of resources; and the road surface that whole pipeline place all need break away, carries out the earthwork operation by a large scale, influences road traffic, causes the raise dust polluted environment.

Disclosure of Invention

The pipeline conveying device in the limited working space provided by the invention can save manpower and material resources, does not need to break the whole pavement where the pipeline to be replaced is located, and avoids dust raising in the operation process.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a pipeline conveying device in a limited operation space comprises a rack vertically installed on a base, wherein two conveying rollers are movably connected to the rack at intervals along the vertical direction of the rack, the peripheral surface of each conveying roller is an inwards concave arc surface, curvature adjusting mechanisms capable of changing the curvature of the arc surface are movably connected to two axial ends of each conveying roller, an elastic tightening mechanism is arranged between the two conveying rollers, and at least one of the two conveying rollers is driven by a driving mechanism to roll so as to form conveying of a pipeline clamped between the two conveying rollers and matched with the arc surfaces of the two conveying rollers.

Furthermore, the conveying roller comprises a sleeve body which is sleeved outside the rotating shaft and the middle of the sleeve body is fixedly connected with the rotating shaft, the sleeve body is superposed with the axis of the rotating shaft, two ends of the rotating shaft are respectively and rotatably connected with connecting blocks, and each connecting block is respectively and movably connected with the rack.

Furthermore, the two ends of the axis of the sleeve body are respectively composed of a plurality of elastic variable-curvature arc-shaped blades, and the outer surface of the curvature adjusting mechanism is abutted against the inner surfaces of the corresponding variable-curvature arc-shaped blades.

Furthermore, the variable-curvature arc-shaped blades positioned on the same side are connected into a whole through an elastic binding mechanism arranged on the sleeve body.

Furthermore, the elastic binding mechanism comprises an installation block formed on the inner wall of the variable-curvature arc blade, the installation block positioned on the variable-curvature arc blade on the same side forms an annular structure, the annular structure is superposed with the axis of the sleeve body, a plurality of annular clamping grooves are formed in the inner wall of the annular structure along the axial direction of the sleeve body, annular springs are respectively assembled in the annular clamping grooves, and the central lines of the annular springs are superposed with the axis of the sleeve body.

Furthermore, each curvature adjustment mechanism include with pivot threaded connection's regulation platform, the internal surface laminating of the variable curvature arc blade of the circumferential surface of regulation platform and corresponding side, and the inside crescent along the axial of the cover body of the camber surface of regulation platform.

Furthermore, the elastic tightening mechanism comprises a hard spring arranged between the connecting blocks at the same side of the two rotating shafts, the two ends of the hard spring are respectively connected with an adjusting component, and one end of the adjusting component, which is far away from the hard spring, is fixed with the corresponding connecting block.

Furthermore, the adjusting assembly comprises a connecting seat arranged on the connecting block, an adjusting rod vertically extending to the hard spring is rotatably connected to the connecting seat through a bearing assembled in the connecting seat, and one end, far away from the connecting seat, of the adjusting rod is in threaded connection with a threaded sleeve fixed at the end part of the hard spring.

Furthermore, a plurality of strip-shaped holes are vertically formed in the position, corresponding to the connecting block, of the rack, the strip-shaped holes vertically extend, and the connecting block is connected with the rack in a sliding mode through fixing pins penetrating through the connecting block and the corresponding strip-shaped holes.

Furthermore, a rubber layer is bonded on the outer peripheral surface of the rubber pad of the conveying roller.

Due to the adoption of the structure, compared with the prior art, the invention has the technical progress that: because the peripheral surfaces of the two conveying rollers are concave arc surfaces, the pipeline to be replaced is positioned between the two conveying rollers, and the arc surfaces of the two conveying rollers are attached to the corresponding outer surfaces of the pipeline, because of the arrangement of the curvature adjusting mechanism, the curvature change of the arc surfaces of the conveying rollers is realized by adjusting the curvature adjusting mechanism, so as to realize the adaptation of the arc surfaces to the pipelines with different pipe diameters, and when the pipeline is arranged between the two conveying rollers, the two conveying rollers play a role in clamping the pipeline, one of the conveying rollers is driven to rotate by the driving mechanism, so as to realize the conveying of the pipeline by the two conveying rollers, or the two conveying rollers are driven to rotate along opposite directions by the driving mechanism, so as to convey the pipeline, and because hard objects and sundries are often bonded on the pipeline, because the conveying rollers and the machine body are in a movable connection mode, when the pipeline part with the hard objects, so that the pipeline passes through the elastic tightening mechanism, and the elastic tightening mechanism pulls the two conveying rollers in the conveying process of the pipeline without impurities, so that the two conveying rollers clamp the pipeline to avoid the pipeline from slipping in the conveying process; therefore, when the pipeline is replaced, the pipeline can be led out or led into the ground from one end of the pipeline gradually only by destroying the road surface at one end of the pipeline and placing the pipeline in the excavated foundation pit, so that manpower and material resources are reduced, road traffic is not influenced, and dust pollution to the environment is caused.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of an embodiment of the present invention with the drive mechanism removed;

FIG. 2 is a schematic view of a conveying roller, a curvature adjusting mechanism and a rotating shaft according to an embodiment of the present invention;

FIG. 3 is a partial axial structural cross-sectional view of the conveyor roller and curvature adjustment mechanism of FIG. 2;

FIG. 4 is a schematic view of the connection between the feeding roller and the annular spring according to the embodiment of the present invention;

FIG. 5 is a schematic view of a partial structure of a conveyor roller and a ring spring according to an embodiment of the present invention;

FIG. 6 is a schematic view of a partial structure of an elastic tightening mechanism according to an embodiment of the present invention;

fig. 7 is an enlarged view of a portion a in fig. 6.

Labeling components: 1-a rack, 2-a base, 3-a connecting block, 4-a rotating shaft, 5-a sleeve body, 501-a variable curvature arc blade, 6-a curvature adjusting mechanism, 601-an operating sleeve, 602-an adjusting table, 603-an annular clamping groove, 7-an elastic tightening mechanism, 701-a connecting seat, 7011-a limiting sleeve, 702-an adjusting rod, 7021-a flange, 703-a threaded sleeve, 704-a hard spring, 705-a fixed block, 8-a strip-shaped hole, 9-a fixed pin, 10-an annular spring, 11-a bearing, 12-a fastening bolt and 13-a driving motor.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The invention discloses a pipeline conveying device in a limited operation space, which comprises a base 2, a rack 1 and two conveying rollers, wherein the rack 1 is vertically arranged on the base 2, the two conveying rollers are movably arranged on the rack 1 at intervals along the vertical direction, the peripheral surface of each conveying roller is an inwards concave arc surface, two axial ends of each conveying roller are respectively and movably connected with a curvature adjusting mechanism 6 capable of changing the curvature of the arc surface, an elastic tightening mechanism 7 is arranged between the two conveying rollers, and at least one of the two conveying rollers is driven by a driving mechanism to roll. The driving mechanism adopts a driving motor 13 arranged on the frame 1, an output shaft of the driving motor 13 is in transmission connection with one of the two conveying rollers, and the conveying roller in transmission connection with the driving motor 13 is fixedly connected with the frame 1; or the driving mechanism adopts two driving motors 13, the output shafts of the two driving motors 13 are respectively in transmission connection with the two conveying rollers, and the two driving motors 13 are ensured to synchronously rotate along opposite directions, and each driving motor 13 is respectively in sliding connection with the frame 1, or the driving motors 13 are in a free state, namely are not connected with the frame 1, the sliding connection mode of the driving motors 13 and the frame 1, and the transmission connection mode of the driving motors 13 and the output shafts are conventional setting modes, which are not shown in the figure, and can be easily imagined by a person skilled in the art according to the present invention, and are not described herein. The driving motor 13 shown in fig. 1 of the present invention adopts one, the output shaft of the driving motor 13 is coaxially connected with the rotating shaft 4 of the conveying roller located at the lower part, the bottom of the driving motor 13 is padded with a support to support the driving motor 13, or the driving motor 13 is fixed with the base 2, in this case, only the conveying roller located at the upper part can be displaced along the height direction of the frame 1, and the conveying roller located at the lower part and the frame 1 have no relative displacement in the height direction. The working principle and the advantages of the invention are as follows: because the outer peripheral surfaces of the two conveying rollers are concave arc surfaces, the pipeline to be replaced is positioned between the two conveying rollers, and the arc surfaces of the two conveying rollers are attached to the corresponding outer surfaces of the pipeline, because of the arrangement of the curvature adjusting mechanism 6, the curvature change of the arc surfaces of the conveying rollers is realized by adjusting the curvature adjusting mechanism 6, so as to realize the adaptation of the arc surfaces to the pipelines with different pipe diameters, and when the pipeline is arranged between the two conveying rollers, the two conveying rollers play a role in clamping the pipeline, one of the conveying rollers is driven to rotate by the driving mechanism, so as to realize the conveying of the pipeline by the two conveying rollers, or the two conveying rollers are driven to rotate along opposite directions simultaneously by the driving mechanism, so as to convey the pipeline, and because hard objects and sundries are often bonded on the pipeline, because the conveying rollers and the machine body are in a movable connection mode, the elastic tightening mechanism 7 is elastically deformed so as to enable the part of the pipeline to pass through, and the elastic tightening mechanism 7 plays a role of pulling the two conveying rollers in the conveying process of the pipeline without impurities so as to enable the two conveying rollers to clamp the pipeline tightly, so that the pipeline is prevented from slipping in the conveying process; therefore, when the pipeline is replaced, the pipeline can be led out or led into the ground from one end of the pipeline gradually only by destroying the road surface at one end of the pipeline and placing the pipeline in the excavated foundation pit, so that manpower and material resources are reduced, road traffic is not influenced, and dust pollution to the environment is caused.

As a preferred embodiment of the present invention, as shown in fig. 2, the conveying roller includes a sleeve body 5 sleeved outside a rotating shaft 4, the middle part of the sleeve body 5 is fixedly connected with the rotating shaft 4, the axis of the sleeve body 5 coincides with the axis of the rotating shaft 4, two ends of the rotating shaft 4 are respectively rotatably connected with a connecting block 3, and each connecting block 3 is respectively movably connected with a frame 1. The two ends of the axis of the sleeve 5 are respectively composed of a plurality of elastic variable-curvature arc-shaped blades 501, and the outer surface of the curvature adjusting mechanism 6 is abutted against the inner surface of the corresponding variable-curvature arc-shaped blade 501. Because the camber variable arc blade 501 is made for elastic material, through adjusting camber adjustment mechanism 6, when making camber variable arc blade 501 and pipeline surface butt, camber variable arc blade 501 takes place elastic deformation to adapt to the pipe diameter of this pipeline, camber adjustment mechanism 6's effect is supported this moment, makes camber variable arc blade 501 centre gripping between camber adjustment mechanism 6 and pipeline, and the cover body 5 is when rotating along with pivot 4 like this, the transport of the pipeline of being convenient for.

As a preferred embodiment of the present invention, as shown in fig. 3, each curvature adjusting mechanism 6 includes an adjusting table 602, and the adjusting table 602 has a hollow structure, so as to reduce the self weight of the adjusting table 602 and reduce the power consumption of the driving motor 13. An end of the adjusting table 602 close to the corresponding connecting block 3 is configured with an operating sleeve 601, the operating sleeve 601 is sleeved on the rotating shaft 4 and is in threaded connection with the rotating shaft 4, the circumferential surface of the adjusting table 602 is attached to the inner surface of the variable-curvature arc-shaped blade 501 on the corresponding side, and the curvature of the circumferential surface of the adjusting table 602 gradually increases inwards along the axial direction of the sleeve body 5. When the pipe diameter of the pipeline is smaller, the distance between the two conveying rollers is reduced by adjusting the height of the conveying roller positioned at the upper part, then the operating sleeve 601 is rotated to be screwed into the sleeve body 5, and the variable-curvature arc-shaped blade 501 clamped between the adjusting platform 602 and the pipeline is enlarged, so that the pipeline is fully clamped between the two conveying rollers; when the pipe diameter of the pipeline is larger, the operation is opposite. Thus, when the two conveying rollers rotate, the pipeline is guided into and out of the ground sufficiently without slipping. In order to further avoid the slipping between the conveying rollers and the pipeline, a rubber layer is adhered to the outer peripheral surface of the rubber pad of the conveying rollers, and the friction force between the two conveying rollers and the pipeline is improved.

As a preferred embodiment of the present invention, as shown in fig. 3-5, the variable curvature arc blades 501 located on the same side are connected into a whole by an elastic binding mechanism installed on the sheath 5. The variable-curvature arc-shaped blade 501 on the same side is integrated, the phenomenon that the adjacent variable-curvature arc-shaped blade 501 which is not in contact with a pipeline is tilted in the rolling process of the part of the variable-curvature arc-shaped blade 501 on the same side, or the side wall is rolled up due to the fact that the adjacent variable-curvature arc-shaped blade 501 is pressed by the pipeline in the rolling process of the pipeline is avoided, the conveying of the pipeline is further influenced, and the maintenance of the follow-up variable-curvature arc-shaped blade 501 is troublesome. The specific structure of the elastic binding mechanism is as follows: the elastic binding mechanism comprises mounting blocks integrally formed on the inner wall of the variable-curvature arc-shaped blade 501, the mounting blocks on the variable-curvature arc-shaped blade 501 on the same side form an annular structure, the annular structure is overlapped with the axis of the sleeve body 5, a plurality of annular clamping grooves 603 are formed in the inner wall of the annular structure along the axial direction of the sleeve body 5, annular springs 10 are respectively assembled in each annular clamping groove 603, and the central lines of the annular springs 10 are overlapped with the axis of the sleeve body 5.

As a preferred embodiment of the present invention, as shown in fig. 1, 6 and 7, the elastic tightening mechanism 7 includes a hard spring 704 installed between the connecting blocks 3 on the same side of the two rotating shafts 4, two ends of the hard spring 704 are respectively connected with an adjusting component, and one end of the adjusting component away from the hard spring 704 is fixed to the corresponding connecting block 3. The specific structure of the adjusting component is as follows: adjusting part includes and installs connecting seat 701 on connecting block 3 through fastening bolt 12, be constructed with stop collar 7011 on connecting seat 701, be equipped with bearing 11 in stop collar 7011, it is connected with the regulation pole 702 that stretches to stereoplasm spring 704 along vertical to rotate through bearing 11 on connecting seat 701, the one end of adjusting pole 702 keeping away from connecting seat 701 and the thread bush 703 threaded connection who fixes at stereoplasm spring 704 tip, in order to prevent that regulation pole 702 from deviating from stop collar 7011, be formed with on adjusting pole 702 along its radial outside flange 7021 that extends, flange 7021 is located stop collar 7011 and contacts with the top inner wall of stop collar 7011. An operator rotates the adjusting rod 702 by one hand, the hard spring 704 is held by the other hand, and one end of the adjusting rod 702, which is far away from the connecting seat 701, is in threaded transmission with the threaded sleeve 703, so that the pre-tightening force of the hard spring 704 is adjusted, the clamping force of the two conveying rollers on the pipeline is further adjusted, and the pipeline part with impurities is effectively guided between the two conveying rollers while slipping between the pipeline and the conveying rollers is avoided. The hard spring 704 of the embodiment is divided into two parts, and the fixing block 705 is fixedly connected between the two parts, so that the defect that the hard spring 704 is too long and needs to be customized in advance is avoided, and when the hard spring 704 is damaged, subsequent purchase and replacement are facilitated.

As a preferred embodiment of the present invention, as shown in fig. 1, a plurality of strip-shaped holes 8 are vertically opened at positions on the frame 1 corresponding to the connecting blocks 3, each strip-shaped hole 8 extends vertically, and the connecting blocks 3 are slidably connected to the frame 1 by fixing pins 9 penetrating through the connecting blocks 3 and the corresponding strip-shaped holes 8. When the raised sundries appear on the pipeline, the conveying roller at the upper part is extended downwards by the top of the projection and is displaced along the strip-shaped hole 8 to facilitate the passing of the raised part of the pipeline.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.