CN212503884U - Special aerial working platform for mounting wrist arm - Google Patents

Abstract

The utility model discloses a special aerial working platform of cantilever installation, including cranking arm and hanging flower basket, cranking arm includes base, revolving stage, basic arm, two sections of arms, telescopic cylinder subassembly, telescopic arm and leveling mechanism, and base fixed mounting is on power flatcar and installs the revolving stage on this base, installs the one end of basic arm on the revolving stage, and the one end that basic arm kept away from the revolving stage articulates the one end of two sections of arms, the other end of two sections of arms leads to the articulated one end of telescopic arm, the one end that telescopic arm kept away from the telescopic arm is installed leveling mechanism, the last hanging flower basket of installing of leveling mechanism for let the hanging flower basket keep the level always; the telescopic cylinder assembly is provided with two groups, and for each group of telescopic cylinder assembly, the telescopic cylinder assembly respectively comprises a telescopic cylinder, a first connecting rod and a second connecting rod. The utility model discloses a basic arm, two section arms and the combination scheme of flexible arm and two telescopic cylinder subassemblies have realized that the hanging flower basket can move and low putting to the car down, and stable in structure is reliable moreover.

Description

Special aerial working platform for mounting wrist arm

Technical Field

The utility model belongs to the technical field of the cantilever installation, more specifically relates to a special aerial working platform of cantilever installation.

Background

At present, the main equipment for installing and maintaining the cantilever of the contact network by the domestic power supply department is a contact network maintenance vehicle, and a liftable or rotatable movable platform (or called a bucket or a hanging basket) of a standard operation vehicle (set) is roughly divided into two types, namely, the first type is the contact network maintenance vehicle with the hanging basket capable of vertically lifting, and the second type is an overhead working vehicle with the hanging basket capable of widely moving through a crank arm.

Hanging baskets are arranged on the two operation vehicles, and the contact net can be maintained. However, in practical application, because the rotation is inconvenient and the power assisting device is not provided, the height difference of about 2-3 m exists between the surface of the flat car or the ground and the standing surface of the hanging basket, and the like, and the safety of workers climbing and overhauling the work by the escalator and the scaffold is not guaranteed.

Functionally, the height of the hanging basket of the first type of overhead line maintenance vehicle is higher when the hanging basket is at the initial position, and the hanging basket only provides the position where a maintenance worker stands, and the hanging basket does not have the operation function of conveying a cantilever or other heavy objects to an overhead operation point from the ground or the surface of a platform truck of the operation vehicle group, and does not have a larger operation radius, so that the hanging basket cannot reach a lower operation surface or a higher position, the comprehensive maintenance efficiency is lower, the application range and the application range are limited, and especially, the hanging basket brings a large elbow brake for technical work such as additional lead installation, overhead line arm installation and the like which have larger workload or need to bear load to operate. The second type of overhead working truck has a large operating radius of overhead working, and the telescopic arm of the second type of overhead working truck has a long length and a large weight, so that the load of the rotating mechanism is large, the structure limits that the second type of overhead working truck cannot be lowered to a lower working surface, and the load carrying (in-place installation) of heavy objects such as wrists and arms on the ground or a flat car cannot be realized, so that the tasks such as arm support installation cannot be finished, and the function of lowering cannot be realized by simply increasing the number of sections of crank arms or sampling a plurality of sections of rotary folding arms. This makes the utilization ratio of operation car low, and workman's intensity of labour is big.

SUMMERY OF THE UTILITY MODEL

To the above defect or the improvement demand of prior art, the utility model provides a special aerial working platform of cantilever installation, it can hang down and put ground or flatbed car face and pick up the heavy object (like cantilever and instrument), conveniently meet and send the operation personnel to the appointed operation place of the great radius within range in high altitude can be solved the cantilever installation, the demand of installation adjustment processes such as additional wire or anchor down, improves the utilization ratio of whole operation car, alleviates intensity of labour and further ensures the operation safety.

In order to achieve the above object, according to an aspect of the present invention, there is provided a special aerial work platform for mounting a cantilever, comprising a crank arm and a hanging basket, wherein:

the crank arm comprises a base, a rotary table, a basic arm, a two-section arm, a telescopic cylinder assembly, a telescopic arm and a leveling mechanism, wherein the base is fixedly installed on the power flat car, the rotary table is installed on the base, one end of the basic arm is installed on the rotary table and used for driving the basic arm to rotate around a vertical shaft, one end, far away from the rotary table, of the basic arm is hinged to one end of the two-section arm through a first hinge shaft, the other end of the two-section arm is hinged to one end of the telescopic arm through a second hinge shaft, the leveling mechanism is installed at one end, far away from the telescopic arm, of the telescopic arm, and the hanging basket is installed on the leveling mechanism and used for keeping the hanging basket horizontal all the time; the telescopic cylinder assemblies are arranged in two groups, each group of telescopic cylinder assemblies respectively comprises a telescopic cylinder, a first connecting rod and a second connecting rod, an output shaft of each telescopic cylinder is hinged with one end of the first connecting rod and one end of the second connecting rod through a third hinge shaft, the other end of the first connecting rod and the other end of the second connecting rod are respectively provided with a fourth hinge shaft and a fifth hinge shaft, one end of each telescopic cylinder, far away from the third hinge shaft, is provided with a sixth hinge shaft, and the first hinge shaft to the sixth hinge shafts are horizontally arranged and are parallel to each other;

for one group of the telescopic cylinder assemblies, a telescopic cylinder of each group of the telescopic cylinder assemblies is hinged with one end, close to the rotary table, of the basic arm through a sixth hinge shaft, a second connecting rod is hinged with one end, close to the basic arm, of the second-joint arm through a fifth hinge shaft, and a first connecting rod is hinged with one end, close to the second-joint arm, of the basic arm through a fourth hinge shaft;

for another group of telescopic cylinder assemblies, a telescopic cylinder of each telescopic cylinder assembly is hinged with one end, close to the basic arm, of the second joint arm through a sixth hinge shaft, a second connecting rod is hinged with one end, close to the second joint arm, of the telescopic arm through a fifth hinge shaft, and a first connecting rod is hinged with one end, close to the telescopic arm, of the second joint arm through a fourth hinge shaft.

Preferably, the basket is an L-shaped basket.

Preferably, the crank arm can drive the bottom surface of the hanging basket to move to be in contact with the ground or the upper surface of the flat car for carrying goods.

Preferably, the leveling mechanism comprises a servo motor which keeps the basket level at all times by driving the basket to rotate about a horizontal axis.

Preferably, the lifting device further comprises a slewing mechanism connected with one end of the leveling mechanism far away from the telescopic arm, and the slewing mechanism is used for driving the hanging basket to rotate around a vertical shaft.

Preferably, the telescopic cylinder is a servo cylinder.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1) the utility model discloses a to the comprehensive research and the optimal design of the crank arm structural style on the high altitude construction car, combine load and operation personnel area requirement, confirm the structural style of cranking arm, adopt basic arm, two section arms and the combination scheme of flexible arm and two telescopic cylinder subassemblies, realized that the hanging flower basket can move down to the car and hang down and put, stable in structure is reliable moreover.

2) The utility model discloses an operation radius of cranking arm is big and can bear weight greatly, and the operation radius of height stroke is bigger meaning application scope bigger, can more uses use, improves the mechanized utilization ratio of the operation car group of contact net engineering and user's work efficiency, has good application prospect.

3) The utility model discloses can realize in the past being difficult to some heavy burden operations competent, for example put up needs such as cantilever and hang down to put ground or flatbed car face and pick up the heavy object (like cantilever and instrument) to make things convenient for the operation personnel from top to bottom, this kind of heavy burden operation volume accounts for more than 30% of whole contact net mechanized operation content, has still set up the helping hand arm in the hanging flower basket moreover, can obviously improve workman intensity of labour, improves safe operation condition.

4) The utility model discloses an aerial working platform is general basically in various existing mainstream operation cars, and is compatible strong.

Drawings

FIG. 1 is a schematic view of the present invention with a power-assisted mechanical arm mounted thereon;

FIG. 2 is a schematic view of the present invention mounted on an aerial cage;

figure 3 is a schematic view of the basket in the present invention in a low position.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the special wrist-mounted aerial work platform 12 comprises a crank arm 121 and a basket 122, wherein the crank arm 121 comprises a base 1211, a turntable 1212, a basic arm 1213, a two-section arm 1214, a telescopic cylinder assembly 1215, a telescopic arm 1216 and a leveling mechanism 1217, the base 1211 is fixedly mounted on the power flat car and the turntable 1212 is mounted on the base 1211, one end of the basic arm 1213 is mounted on the turntable 1212 for driving the basic arm 1213 to rotate around a vertical shaft, one end of the basic arm 1213 away from the turntable 1212 is hinged to one end of the two-section arm 1214 through a first hinge shaft, the other end of the two-section arm 1214 is hinged to one end of the telescopic arm 1216 through a second hinge shaft 1218, one end of the telescopic arm 1216 away from the telescopic arm 1216 is mounted to the leveling mechanism 1217, and the basket 122 is mounted on the leveling mechanism 1217 for keeping the basket 122 horizontal, the hanging basket 122 is provided with an inclination angle sensor which is matched with a leveling mechanism 1217 to realize automatic leveling of the hanging basket 122, and the prior art about the technology of keeping parts on the crank arm 121 horizontal is numerous, and the leveling is mainly realized by performing logic calculation and controlling the rotation of each shaft through a controller, which is not described again; preferably, referring to fig. 3, the telescopic cylinder 1215 of the crank arm 121, especially two connecting rods, are arranged so that the crank arm 121 is structurally stable and heavy, and thus the bottom of the basket 122 can be driven to move to contact with the ground or the surface of the platform truck for loading of the aerial lift truck 1, so that the basket 122 can be lowered to facilitate the loading and unloading of the basket 122 by workers.

The telescopic cylinder assemblies 1215 are provided with two groups, each group of telescopic cylinder assemblies 1215 respectively comprises a telescopic cylinder 12151, a first connecting rod 12152 and a second connecting rod 12153, an output shaft of the telescopic cylinder 12151 is hinged with one end of the first connecting rod 12152 and one end of the second connecting rod 12153 through a third hinge shaft 12154, a fourth hinge shaft 12155 and a fifth hinge shaft 12156 are respectively installed at the other end of the first connecting rod 12152 and the other end of the second connecting rod 12153, a sixth hinge shaft 12157 is installed at one end of the telescopic cylinder 12151 far away from the third hinge shaft 12154, and the first hinge shaft 12157 to the sixth hinge shaft 12157 are horizontally arranged and are parallel to each other.

For one set of the telescopic cylinder assemblies 1215, the telescopic cylinder 12151 is hinged to one end of the base arm 1213 near the turntable 1212 via a sixth hinge shaft 12157, the second link 12153 is hinged to one end of the second-joint arm 1214 near the base arm 1213 via a fifth hinge shaft 12156, and the first link 12152 is hinged to one end of the base arm 1213 near the second-joint arm 1214 via a fourth hinge shaft 12155.

For another set of telescopic cylinder assemblies 1215, the telescopic cylinder 12151 is hinged to the end of the second arm 1214 near the base arm 1213 via a sixth hinge shaft 12157, the second link 12153 is hinged to the end of the telescopic arm 1216 near the second arm 1214 via a fifth hinge shaft 12156, and the first link 12152 is hinged to the end of the second arm 1214 near the telescopic arm 1216 via a fourth hinge shaft 12155.

The utility model discloses install and constitute high altitude construction car 1 on power flatcar 11, install helping hand arm 2 again in the hanging flower basket 122, can realize the semi-automatic installation of cantilever. Or the intelligent mechanical arm is arranged on the overhead working truck 1, the intelligent mechanical arm clamps the cantilever and then is matched with the visual identification module, so that the alignment of the holes of the single ear on the insulator of the cantilever and the holes of the double ears on the cantilever base on the stand column is realized, and then the worker on the hanging basket 122 can connect the single ear and the double ears through bolts.

The utility model discloses an aerial working platform design has two operating condition ("1 number position" and "3 number position") and an intermediate state ("2 number position"), and when the operation train unit walked, aerial working platform returned or was in safe position (defined as "0 number position"):

(1) grabbing a cantilever from the ground or from a power flat car (the locking basket 122 moving function-the power-assisted mechanical arm 2 is unlocked, and the initial position when grabbing operation is started is defined as 'No. 1');

(2) the power-assisted mechanical arm 2 grabs the wrist arm and then bears and is fixed to the aerial work platform, and the middle process of aerial transportation and target position movement of the wrist arm is started (before the movement is started, the power-assisted mechanical arm 2 is locked to operate and the basket 122 is unlocked to move, and the moving process is defined as a 'No. 2' state).

(3) When the position is close to a wrist arm mounting hole position on the upright column (the distance from the upright column along the line is less than or equal to 0.5m, and the horizontal plane on which people stand is lower than the lower base height of the wrist arm within 0.2 m), the work station is in the '3-position', the hanging basket 122 stops moving (locking the hanging basket 122 moving function-unlocking mechanical hand operation), then the double ears of the wrist arm base pre-mounted on the upright column and the single ear of the wrist arm insulator on the booster mechanical arm 2 can be aligned by the manual traction booster mechanical arm 2 on the hanging basket 122, and the wrist arm is mounted by manual pin penetration and fixation.

(4) After the wrist is installed, the power-assisted mechanical arm 2 loosens the wrist and returns to the original position, and the hanging basket 122 returns to the '0' position or the '1' position to perform the next cycle.

The operation of the aerial work platform can be controlled by remote control (wireless and wired switching) in the hanging basket 122, and the hydraulic control valve on the work vehicle group is an electric proportional valve and has a manual emergency control function. An emergency stop switch is arranged on the remote controller and used for the aerial work platform to stop action emergently. An emergency button is provided for deactivating the electrical system to retrieve the basket 122 in an emergency.

Further, the aerial lift truck 1 further comprises a cantilever assembling trolley 13 connected with the power flat car 11, and a cantilever assembling rack 3 is placed on the cantilever assembling trolley 13 and used for assembling the cantilever on a construction site. Preferably, the wrist-arm assembly stand 3 includes a frame 31, and a rotary drive mechanism and a rotatable template 32, which are commonly mounted on the frame 31, and,

the rotary driving mechanism is installed on the frame 31, and is connected to the rotatable template 32 for driving the rotatable template 32 and the wrist arm on the rotatable template 32 to rotate together around the horizontal axis, and a receiving platform is arranged on the rotatable template 32 for receiving the wrist arm when the rotatable template 32 rotates, so as to prevent the wrist arm from falling off.

Further, the aerial lift platform 1 further comprises a wrist arm assembling flat car 13 connected with the power flat car, and the wrist arm assembling rack 3 is installed on the wrist arm assembling flat car 13. Preferably, the powered flatcar 11 and the cantilever-assembled flatcar 13 are both convertible vehicles.

Further, in order to satisfy the needs of users for installing wrists or other similar loads, the space of the hanging basket 122 needs to be large enough, the conditions that the number of people allowed to stand needs to be more than or equal to 3 or more than or equal to 2 for configuring and installing other mechanical devices at the same time need to be considered, the plane arrangement or the structural shape and the like of the hanging basket 122 need to be changed in combination with the requirements of the operation method of the users to make a design, the hanging basket 122 is an L-shaped hanging basket. The L-shaped arrangement mode has the advantages that: when the hanging basket 122 is positioned below the conducting wire, a part of the hanging basket 122 is arranged outside the conducting wire in a staggered way, so that an operator can stand (the conducting wire is prevented from being positioned in the middle to hinder standing or operation), and when the hanging basket 122 is recovered to a running or non-working vehicle recovery state, the hanging basket can be collected to one side of the central line of the vehicle on the power flat vehicle, and the occupied area is saved. The L-shaped arrangement of baskets 122 allows maximum use of space. The connection between the basket 122 and the crank arm 121 is made at a lower or rear position, i.e., the basket 122 is rotated to a lower or rear position. It can be seen that the use of the L-shaped cradle 122 provides the best space utilization, and importantly, it is possible to achieve low-weight operation and high-altitude operation, and the turning radius or the mode of the station is checked to meet the requirements of the user's habits and the standard construction method. Under the condition of no extra loading, the optimized arrangement mode of the L-shaped hanging baskets 122 can be adopted in combination with the user experience requirements in the specific practical process.

Further, the leveling mechanism 1217 includes a servo motor that keeps the basket 122 level at all times by driving the basket 122 to rotate about a horizontal axis. The servo motor has high control precision and response speed and can meet the requirements of the aerial work platform.

Further, the aerial work platform further comprises a swing mechanism 123 connected with one end of the leveling mechanism 1217, which is far away from the telescopic arm 1216, so as to drive the hanging basket 122 to rotate around a vertical shaft, and then the hanging basket 122 can also rotate, thereby facilitating the installation and adjustment of the wrist on the hanging basket 122 by workers.

The utility model discloses a to comprehensive research and the optimal design of cranking arm 121 structural style, combine load and operation personnel area requirement, confirm the structural style of cranking arm 121 and hanging flower basket 122 as follows:

(1) the crank arm 121: the combination of the basic arm 1213, the second-section arm 1214 and the telescopic arm 1216 is adopted to realize that the hanging basket 122 can move downwards to be lowered.

(2) The hanging basket 122 on the crank arm 121 is provided with leveling and rotating functions, so that the safety of operators is ensured, and the working efficiency is improved. The connection mode of the basket 122 and the crank arm 121 needs to consider the requirement of the rotation function, and can be changed to be at the bottom of the basket 122.

(3) The base 1211 is mounted on the centerline of the powered flat car, so that the center of the basket 122 is offset from the centerline of the powered flat car, as required by the overall plan of the basket 122 size and the parked position.

(4) The main technical parameters of the basket 122 are as follows:

it will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. The utility model provides a special aerial working platform of cantilever installation which characterized in that, includes bent arm and hanging flower basket, wherein:

the crank arm comprises a base, a rotary table, a basic arm, a two-section arm, a telescopic cylinder assembly, a telescopic arm and a leveling mechanism, wherein the base is fixedly installed on the power flat car, the rotary table is installed on the base, one end of the basic arm is installed on the rotary table and used for driving the basic arm to rotate around a vertical shaft, one end, far away from the rotary table, of the basic arm is hinged to one end of the two-section arm through a first hinge shaft, the other end of the two-section arm is hinged to one end of the telescopic arm through a second hinge shaft, the leveling mechanism is installed at one end, far away from the telescopic arm, of the telescopic arm, and the hanging basket is installed on the leveling mechanism and used for keeping the hanging basket horizontal all the time; the telescopic cylinder assemblies are arranged in two groups, each group of telescopic cylinder assemblies respectively comprises a telescopic cylinder, a first connecting rod and a second connecting rod, an output shaft of each telescopic cylinder is hinged with one end of the first connecting rod and one end of the second connecting rod through a third hinge shaft, the other end of the first connecting rod and the other end of the second connecting rod are respectively provided with a fourth hinge shaft and a fifth hinge shaft, one end of each telescopic cylinder, far away from the third hinge shaft, is provided with a sixth hinge shaft, and the first hinge shaft to the sixth hinge shafts are horizontally arranged and are parallel to each other;

for one group of the telescopic cylinder assemblies, a telescopic cylinder of each group of the telescopic cylinder assemblies is hinged with one end, close to the rotary table, of the basic arm through a sixth hinge shaft, a second connecting rod is hinged with one end, close to the basic arm, of the second-joint arm through a fifth hinge shaft, and a first connecting rod is hinged with one end, close to the second-joint arm, of the basic arm through a fourth hinge shaft;

for another group of telescopic cylinder assemblies, a telescopic cylinder of each telescopic cylinder assembly is hinged with one end, close to the basic arm, of the second joint arm through a sixth hinge shaft, a second connecting rod is hinged with one end, close to the second joint arm, of the telescopic arm through a fifth hinge shaft, and a first connecting rod is hinged with one end, close to the telescopic arm, of the second joint arm through a fourth hinge shaft.

2. The special aerial work platform for wrist-arm installation according to claim 1, wherein the basket is an L-shaped basket.

3. The special aerial work platform for wrist-arm installation of claim 1, wherein the crank arm can drive the bottom surface of the hanging basket to move to contact with the ground or the upper surface of the flat car for carrying goods.

4. The special aerial work platform for wrist-arm installation according to claim 1, wherein the leveling mechanism comprises a servo motor which drives the basket to rotate around a horizontal shaft, so that the basket is kept horizontal at all times.

5. The special aerial work platform for wrist-arm installation according to claim 1, further comprising a swing mechanism connected to an end of the leveling mechanism remote from the telescopic arm for driving the basket to rotate about a vertical axis.

6. The special aerial work platform for wrist-arm installation according to claim 1, wherein the telescopic cylinder is a servo cylinder.

Images