CN205953369U - Adhere to formula and embrace pole - Google Patents

Abstract

The utility model discloses an adhere to formula and embrace pole relates to transmission line construction professional equipment technical field for when solve railway or railway and lining up the line and carry out transmission line stringing construction, the hoist and mount problem of crossing structure support body. Adhere to formula and embrace pole includes: hollow armful of pole stand, the bottom of embracing the pole stand are equipped with to be used for making embraces pole stand and the fixed fixing device of crossing structure, and the top of embracing the pole stand is equipped with hoisting accessory, wherein, hoisting accessory has included the davit and has played a lifting rope, and the one end of playing the davit links to each other with the top of embracing the pole stand, unsettled the stretching out of the other end of playing the davit, be equipped with the fixed pulley in playing the davit, it is unsettled that the fixed pulley is passed to the one end of playing the lifting rope, and the other end that plays the lifting rope passes to be embraced a pole stand and hang down to ground. The utility model provides an adhere to formula and embrace pole is used for the hoist and mount of crossing structure support body.

Description

Attached holding pole

Technical Field

The utility model relates to a transmission line construction professional equipment technical field especially relates to an attached type pole of embracing.

Background

With the high-speed development of the ultra-high voltage transmission construction, the situation that the ultra-high voltage transmission line crosses important facilities, such as high-speed railways, expressways and the like, often occurs, and the frequency and difficulty of the ultra-high voltage transmission line crossing the important facilities are increased day by day.

At present, in the crossing construction process of a power transmission line, a crane is generally used for hoisting operation, and the crossing frame body is installed. However, when the construction site of the power transmission line is close to a railway or a railway through line, safety accidents are easy to happen if a crane is used for hoisting, and due to the existence of railway related facilities, the hoisted crossing frame body parts are difficult to be accurately positioned, and the construction difficulty is high. Therefore, it is urgently needed to provide a special device which can be close to a railway or a railway through line to carry out power transmission line stringing construction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pole is embraced to attached type for when solving and pressing close to railway or railway and link up the line and carry out transmission line stringing construction, the hoist and mount problem of crossing structure support body.

In order to achieve the above object, the present invention provides the following technical solutions:

an attachable clasping pole comprising: the device comprises a hollow holding pole upright post, wherein a fixing device for fixing the holding pole upright post and a crossing frame is arranged at the bottom of the holding pole upright post, and a hoisting device is arranged at the top of the holding pole upright post; wherein,

the lifting device comprises a lifting arm and a lifting rope, one end of the lifting arm is connected with the top of the holding pole upright post, and the other end of the lifting arm is suspended in the air and extends out;

a fixed pulley is arranged in the lifting arm, one end of the lifting rope passes through the fixed pulley to be suspended, and the other end of the lifting rope passes through the holding pole stand column to be hung to the ground.

According to the needs of real-time hoisting when the spanning frame body is built step by step, the attached holding rod provided by the utility model can be installed on the top side of the spanning frame built at the bottom layer at any time through the fixing device, thus effectively utilizing the overhead position of the top of the built spanning frame, and only needing a small operation surface, reducing the occupation of a hoisting field, therefore, the attached holding rod provided by the utility model can be suitable for the spanning construction site of any power transmission line, especially the construction site close to a railway or a railway through line; and the lifting rope passes through the suspended end of the fixed pulley, suspends the subsequent crossing frame body part needing to be installed, and the other end of the lifting rope passes through the pole column and hangs down to the ground, so that the operating personnel can control the lifting rope on the ground, and the lifting of the crossing frame body part is completed.

Compared with the hoisting operation by using a crane in the prior art, the attached holding pole provided by the utility model has simple structure, but can enhance the flexibility of hoisting the crossing frame body part by directly controlling the hoisting rope by the operating personnel, is easy to avoid obstacles and can reduce the occurrence of safety accidents; furthermore, the utility model provides an attached type armful of pole is along with adorning along with using, and can hug closely with the support body side of crossing structure through fixing device, when hoisting crossing structure support body part through the lifting rope like this, just can make the crossing structure support body part of hoist and mount accurate taking one's place, very big site operation who has made things convenient for the operation personnel.

Therefore, the utility model provides an attached form is embraced the pole, when pressing close to railway or railway and link up the overhead line construction that the line carries out transmission line, the hoist and mount of completion crossing structure support body that can be fine.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural view of an attached holding pole according to an embodiment of the present invention;

fig. 2 is a schematic top view of an attached holding pole according to an embodiment of the present invention.

Reference numerals:

1-a fixing device, 2-a holding pole upright post,

3-a rotating device, 4-a hoisting device,

41-lifting arm, 42-fixed pulley,

43-lifting rope, 5-spanning frame body part.

Detailed Description

For the convenience of understanding, the attached holding pole provided by the embodiment of the present invention will be described in detail below with reference to the attached drawings.

Referring to fig. 1 and fig. 2, an attached holding pole according to an embodiment of the present invention includes: the crossing structure comprises a hollow holding pole upright post 2, wherein the bottom of the holding pole upright post 2 is provided with a fixing device 1 for fixing the holding pole upright post 2 and a crossing frame, and the top of the holding pole upright post 2 is provided with a hoisting device 4; the hoisting device 4 comprises a hoisting arm 41 and a hoisting rope 43, wherein one end of the hoisting arm 41 is connected with the top of the derrick mast 2, and the other end of the hoisting arm 41 is suspended and extends out; a fixed pulley 42 is arranged in the lifting arm 41, one end of a lifting rope 43 passes through the fixed pulley 42 to be suspended, and the other end of the lifting rope 43 passes through the holding pole upright post 2 to be suspended to the ground.

During specific implementation, according to the needs of real-time hoist and mount when the crossing structure is built step by step, the embodiment of the utility model provides an inserted pole can install the top side at the bottom crossing structure of having built the completion at any time through fixing device 1, then passes the unsettled one end of fixed pulley 42 through lifting rope 43, suspends in midair the crossing structure support body part 5 of follow-up needs installation, and lifting rope 43's the other end passes and holds pole stand 2 and hang down to ground, and operating personnel controls lifting rope 43 on ground, accomplishes the hoist and mount to crossing structure support body part 5.

Can know through above-mentioned concrete implementation process, when adopting above-mentioned attached type to embrace the pole and carry out the hoist and mount of crossing structure support body part 5, embrace the pole along with the dress at the bottom through fixing device 1 and build the top side of the crossing structure of completion, can effectively utilize the overhead position in top of the crossing structure of having built the completion, and only need very little operation face, reduced the occuping in hoist and mount place, also consequently the embodiment of the utility model provides an attached type embraces the pole and can be applicable to the crossing construction site of any transmission line, especially presses close to the job site of railway or railway through line.

Moreover, the embodiment of the utility model provides an attached type pole is embraced although simple structure constitutes, nevertheless directly controls lifting rope 43 through the operating personnel, can strengthen the flexibility of 5 hoists of crossing structure support body part, easily avoids the obstacle, can reduce the emergence of incident.

Additionally, the embodiment of the utility model provides an attached type is embraced the pole and is followed up with adorning, and can hug closely with the support body side of crossing structure through fixing device 1, when hoisting crossing structure support body part 5 through lifting rope 43 like this, just can make the crossing structure support body part 5 of hoist and mount accurate taking one's place, very big site operation that has made things convenient for the operation personnel.

The fixing device 1 is used for fixing the holding pole upright post 2 and the crossing frame, and the specific structure of the fixing device can be various, such as a fixing frame which is fixedly connected with the holding pole upright post 2 and is provided with a fixing mounting hole, and the like. In this embodiment, in order to facilitate the operation of the operator, preferably, the fixing device 1 includes a first hoop 11 and a second hoop 12 connected to the bottom of the pole holding column 2, and the first hoop 11 and the second hoop 12 are arranged at intervals along the axial direction of the pole holding column 2, so as to enhance the supporting strength of the fixing device 1 on the pole holding column 2; and the first anchor ear 11 and the second anchor ear 12 are both provided with extending parts with fixed mounting holes, and the holding pole upright post 2 can be fixed on the crossing frame by combining fastening connecting pieces such as fastening bolts and the like, and is easy to detach.

The fixed pulley 42 may be disposed in the boom 41 in various configurations, for example, the fixed pulley 42 may be located at a suspended end of the boom 41, or at the middle of the boom 41, so long as the lifting rope 43 can lift the crossing frame body part 5. In order to have a larger hoisting space, in the embodiment, the fixed pulley 42 is located at the suspended end of the lifting arm 41, and the lifting rope 43 passing through the fixed pulley 42 can be ensured to hoist the crossing frame body part 5 with a larger volume through the suspended length of the lifting arm 41.

When the fixed pulley 42 is located at the suspended end of the lifting arm 41, optionally, another fixed pulley 42 is additionally arranged at the end, connected with the derrick mast upright 2, of the lifting arm 41, the axes of the two fixed pulleys 42 are located on the same horizontal plane, and when the lifting rope 43 passes through the two fixed pulleys 42 to lift the heavier crossing frame body part 5, the two fixed pulleys 42 can disperse and bear the gravity of the crossing frame body part 5, so that the stable lifting of the crossing frame body part 5 is realized.

It should be noted that the connection between the boom 41 and the derrick mast 2 may be a fixed connection, or may be a connection via the rotating device 3. When the lifting arm 41 is fixedly connected with the pole column 2, the lifting arm 41 can be fixed on the top of the pole column 2 by key connection, riveting, screw connection and the like.

When the lifting arm 41 is connected with the holding pole upright post 2 through the rotating device 3, the lifting arm 41 can rotate around the holding pole upright post 2 so as to realize the lifting of the crossing frame body part 5 in any direction; the structure of the rotating device 3 can be various, so as to realize the rotation of the lifting arm 41 around the holding pole upright 2.

The embodiment of the utility model provides an among the attached type holding pole, the structure of pole stand 2 is embraced in the cooperation, preferred a simple and practical's rotary device 3 structure, and rotary device 3 includes and plays the fixed hollow rotating shaft that links to each other of davit 41, and the bottom of hollow rotating shaft is passed through the bearing and is linked to each other with the top of holding pole stand 2.

Specifically, the fixing manner between the hollow rotating shaft and the lifting arm 41 may be welding, riveting, key connection, threaded connection, or the like, and for the convenience of maintenance and replacement of the hollow rotating shaft, a bolt connection is preferred, that is, a connecting part is arranged at the top of the hollow rotating shaft, so that the connecting part and the lifting arm 41 are fastened by a fastening bolt; the bottom of the hollow rotating shaft is connected with the top of the holding pole upright post 2 through a bearing, the bottom of the hollow rotating shaft can be in transition fit with an inner ring of the bearing, an outer ring of the bearing is fixedly connected with the inner surface of the holding pole upright post 2, or the bottom of the hollow rotating shaft is fixedly connected with the inner ring of the bearing, and the outer ring of the bearing is in transition fit with the inner surface of the holding pole upright post 2; the bearing can be rolling bearing.

In order to conveniently regulate and control the rotation angle of the lifting arm 41, the rotating device 3 is provided with a limiting part for limiting the rotation of the lifting arm 41 and a controller for controlling the action of the limiting part; when the lifting arm 41 is rotated to a suitable position, the stopper is operated under the control of the controller to restrict the lifting arm 41 from continuing to rotate.

Optionally, the limiting part comprises a first limiting disc and a second limiting disc which are arranged at intervals along the axial direction of the holding pole upright post 2, the first limiting disc is fixedly sleeved at the bottom of the hollow rotating shaft, the second limiting disc is fixedly sleeved at the top of the holding pole upright post, and a certain gap is formed between the lower disc surface of the first limiting disc and the upper disc surface of the second limiting disc, so that the first limiting disc and the second limiting disc can rotate relatively; the first limiting disc is provided with at least one bolt connected with the controller, and the bolt can move up and down along the axial direction of the first limiting disc under the control of the controller and extend out of or retract into the lower disc surface of the first limiting disc; the upper disc surface of the second limiting disc is provided with a plurality of limiting holes which can be matched with the bolts, the limiting holes are preferably arranged in an equal division manner, the number of the limiting holes is selected and set according to specific division requirements, and the shapes of the limiting holes are matched with the shapes of the bolts, so that the limiting holes can be correspondingly clamped with the bolts extending out of the first limiting disc, and the rotation of the hollow rotating shaft is limited; the shape of the limiting hole can be circular, square or rectangular, and the shape of the bolt can be circular, square or rectangular. It should be noted that the lower disc surface of the first limiting disc refers to a disc surface of the first limiting disc opposite to the second limiting disc.

When the limiting piece with the structure is adopted, the controller can be an electromagnetic controller which specifically comprises a shell, an electromagnetic coil is arranged in the shell and fixedly connected with a spring seat, and a spring fixedly connected with the top end of the bolt is arranged on the spring seat; wherein, the outer wall of casing is fixed in the upper disc face of first spacing dish.

The electromagnetic coil and the spring seat can be fixedly connected in various ways, in this embodiment, the electromagnetic coil can be preferably set to be a cylindrical structure with an internal thread through hole, and the spring seat is correspondingly set to be a cylindrical structure with an external thread, so that the spring seat is installed on the electromagnetic coil through threaded connection. It should be added that the manufacturing material of the plug is iron or other alloy material that can be attracted by magnetic force.

In specific implementation, if the lifting arm 41 needs to rotate, the electromagnetic coil is powered on, the bolt is retracted into the lower disc surface of the first limiting disc under the action of the magnetic force generated by the electromagnetic coil on the attraction of the bolt, so that the hollow rotating shaft can rotate around the holding pole upright post 2, namely, the lifting arm 41 can rotate around the holding pole upright post 2; if the lifting arm 41 rotates to a proper operation angle, the electromagnetic coil is powered off, the magnetic force generated when the electromagnetic coil is powered on disappears, one end of the bolt extends out of the lower disc surface of the first limiting disc and is clamped into the limiting hole of the second limiting disc under the action of the gravity of the bolt, the other end of the bolt is still positioned in the first limiting disc, and the hollow rotating shaft can be limited to continue to rotate around the holding pole upright post 2 under the clamping action of the bolt, the first limiting disc and the second limiting disc, so that the rotation of the lifting arm 41 around the holding pole upright post 2 is limited; in order to facilitate the operation of operators, the on-off of the electromagnetic coil can be realized by remote control.

Of course, the specific structure of the limiting member and the controller is not limited to the above structure, and there may be various options to realize the rotation limiting of the lifting arm 41.

In order to ensure the stable hoisting of the lifting arm 41, the rotating device 3 is further provided with a support, and the support is fixedly connected with the lifting arm 41 so as to enhance the rigidity of the lifting arm 41; the support may be a support rod, a support frame or a support block, and the specific structure thereof is determined according to the spatial position selection between the rotating device 3 and the lifting arm 41.

It should be noted that the holding pole column 2 is a hollow cylindrical structure, and may be an integrated structure, for example, the holding pole column 2 is formed by a complete hollow cylindrical pipe, so as to ensure that the overall strength of the holding pole column 2 easily meets the use requirement; or embrace pole stand 2 and also can be segmentation structure, for example embrace pole stand 2 and constitute by a plurality of pole segmentation of embracing of fixed connection in proper order, through locking device fastening connection between two adjacent pole segmentation, every pole segmentation is hollow cylinder pipe, and locking device can select for use fixed clamp. Through the sectional fixing mode of the holding pole upright post 2, the holding pole upright posts 2 with different heights can be assembled in due time according to the operation requirements on site, so that the lifting height of the attached holding pole can be adjusted at any time, and the field operation with different construction requirements is facilitated.

The concrete parameters of the pole holding column 2, such as the section size, the wall thickness dimension, the length dimension and the like, are finally determined by the skilled in the art after the pole holding column 2 is subjected to model selection and strength check according to the weight, the hoisting length and the like of the required hoisting weight. In order to ensure sufficient stability of the pole post 2 in the attached pole and to allow the lifting arm 41 to lift smoothly, the slenderness ratio of the pole post 2 is generally defined as 120: 1. In addition, the holding pole column 2 can be made of steel, iron, metal alloy or the like, and in order to reduce the overall weight of the attached holding pole and facilitate the carrying and assembly of operators, the holding pole column 2 is preferably an aluminum alloy hollow cylindrical pipe.

In order to more clearly explain the shape selection and strength check of the mast 2 in the above embodiment, the shape selection of the mast 2 when the weight of the hoisted weight is 700kg and the hoisting length is 3m is allowed as an example, and the details are described below.

When the hoisting length is 3 meters, the length of the pole holding upright post 2 is 5 meters, wherein the support length of the pole holding upright post 2 is predicted to be 0.9 meter (the support length refers to the length occupied by the fixing device 1 on the pole holding upright post 2), and the calculated length of the pole holding upright post 2 is predicted to be 4.1 meters;

when a hollow pipe with the specification of phi 120 multiplied by 6mm is selected as the holding pole upright post 2, the outer diameter D of the holding pole upright post 2 is 120mm, the inner diameter D is 108mm, and the weight of each meter of the holding pole upright post 2 is 6.013 kg;

at this time, the turning radius of the pole holding upright post 2 can be calculated and determined according to the related technical parameters of the pole holding upright post 2:and determining the slenderness ratio of the holding pole upright post 2:

then, according to a strength check formula well known by a person skilled in the art, respectively calculating and determining the section inertia moment I, the section resistance moment W and the yield strength sigma of the holding pole upright post 2;

if the yield strength sigma determined by calculation is less than or equal to the allowable yield strength [ sigma ] of the holding pole upright post 2, the specification of the selected hollow pipe is proved to meet the use requirement, namely the hollow pipe with the specification can be used as the holding pole upright post 2;

if the determined yield strength sigma is larger than the allowable yield strength [ sigma ] of the holding pole upright post 2, the specification of the selected hollow pipe is proved to be not in accordance with the use requirement, the specification of the hollow pipe needs to be selected again, and then the strength checking calculation is carried out again until the specification of the selected hollow pipe is confirmed to be capable of meeting the use requirement.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An attachable pole, comprising: the device comprises a hollow holding pole upright post, wherein a fixing device used for fixing the holding pole upright post and a crossing frame is arranged at the bottom of the holding pole upright post, and a lifting device is arranged at the top of the holding pole upright post; wherein,

the lifting device comprises a lifting arm and a lifting rope, one end of the lifting arm is connected with the top of the holding pole upright post, and the other end of the lifting arm is suspended in the air and extends out;

the lifting arm is internally provided with a fixed pulley, one end of the lifting rope penetrates through the fixed pulley to be suspended, and the other end of the lifting rope penetrates through the pole holding upright post to be hung on the ground.

2. The attachable pole of claim 1, further comprising a rotation device for rotating said lifting arm about said pole post, said lifting arm and said pole post being connected by said rotation device.

3. The attached pole of claim 2, wherein the rotating means comprises a hollow shaft fixedly connected to the boom, the bottom of the hollow shaft being connected to the top of the pole post via a bearing.

4. The attachable clasping pole of claim 3,

the rotating device is provided with a limiting part for limiting the rotation of the lifting arm and a controller for controlling the action of the limiting part.

5. The attachable clasping pole of claim 4,

the limiting part comprises a first limiting disc and a second limiting disc which are arranged at intervals along the axial direction of the pole holding upright post, the first limiting disc and the second limiting disc can rotate relatively, the first limiting disc is fixedly sleeved at the bottom of the hollow rotating shaft, and the second limiting disc is fixedly sleeved at the top of the pole holding upright post; wherein,

the first limiting disc is provided with at least one bolt connected with the controller, and the controller controls the bolt to extend out of or retract into the first limiting disc along the axial direction of the first limiting disc;

the second limiting disc and the disc surface opposite to the first limiting disc are provided with a plurality of limiting holes matched with the bolts.

6. The attached holding pole according to claim 5, wherein the controller is an electromagnetic controller, the electromagnetic controller comprises a housing, an electromagnetic coil is arranged in the housing, the electromagnetic coil is fixedly connected with a spring seat, and a spring fixedly connected with the top end of the bolt is arranged on the spring seat; the outer wall of the shell is fixed on the upper disc surface of the first limiting disc, and the lower disc surface of the first limiting disc is opposite to the disc surface of the second limiting disc provided with a plurality of limiting holes.

7. An attachable derrick according to any of claims 2 to 6, characterised in that the swivel is provided with a support, which is fixedly connected to the boom.

8. The attachable clasping pole of claim 7,

the fixing device comprises a first hoop and a second hoop which are connected with the bottom of the pole holding upright post, and the first hoop and the second hoop are arranged at intervals along the axial direction of the pole holding upright post;

the first hoop and the second hoop are provided with extending portions, and the extending portions are provided with fixing mounting holes used for fixing the pole holding upright post on the crossing frame.

9. The attachable clasping pole of claim 1, wherein the clasping pole upright has a slenderness ratio of 120: 1; the pole holding upright post is an aluminum alloy pole holding upright post.

10. The attached pole of claim 1, wherein the pole upright is a plurality of pole segments fixedly connected in sequence, and two adjacent pole segments are fastened and connected by a locking device.