CN212503885U - Overhead working truck for contact net - Google Patents

Abstract

The utility model discloses a contact net high altitude construction car, including power flatcar and high altitude construction platform, high altitude construction platform includes bent arm and hanging flower basket, and bent arm includes base, revolving stage, basic arm, two sections arm, telescopic cylinder subassembly, telescopic arm and leveling mechanism, and base fixed mounting is on power flatcar and the revolving stage is installed 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 arm, and the other end expert of two sections arm articulates the one end of telescopic arm, and telescopic arm keeps away from the one end of telescopic arm installs leveling mechanism, installs the hanging flower basket on the leveling mechanism for let the hanging flower basket keep the level always; the telescopic cylinder assemblies are provided with two groups, and each group of telescopic cylinder assemblies 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

Overhead working truck for contact net

Technical Field

The utility model belongs to the technical field of the cantilever installation, more specifically relates to a contact net high altitude construction car.

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 contact net high altitude construction car, 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 demand of installation adjustment technology such as cantilever installation, 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 one aspect of the present invention, there is provided a overhead working truck for overhead contact systems, comprising a power platform truck and an overhead working platform, wherein,

the aerial work platform comprises a crank arm and a hanging basket, 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, the base is fixedly mounted on the power flat car, the rotary table is mounted on the base, one end of the basic arm is mounted 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 mounted at one end, far away from the telescopic arm, of the telescopic arm, and the hanging basket is mounted 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 surface of a flat car for loading of the high-altitude operation car.

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 aerial work platform further comprises a slewing mechanism connected with one end of the leveling mechanism, which is far away from the telescopic arm, so as to drive 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 structural diagram of the present invention;

FIG. 2 is a schematic view of a high-altitude work platform according to the present invention;

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

fig. 4 is a schematic view of the power flat car of the present invention after being connected to the wrist-arm assembly flat car.

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 4, the aerial lift truck comprises a power flat car 11 (powered flat car) and an aerial lift platform 12, the power flat car 11 is provided with an engine, preferably an electrically controlled diesel engine, for driving wheels on a frame of the power flat car to rotate, the aerial lift platform 12 comprises a crank arm 121 and a gondola 122, the power flat car 11 is provided with a fence at a position corresponding to the crank arm 121, the crank arm 121 comprises a base 1211, a turntable 1212, a basic arm 1213, a second-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 11, 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, which is far away from the turntable 1212, is hinged to one end of the second-section arm 1214 through a first hinge shaft, the other end of the second 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, which is far away from the telescopic arm 1216, is provided with the leveling mechanism 1217, the leveling mechanism 1217 is provided with the basket 122 for keeping the basket 122 horizontal all the time, the basket 122 is provided with an inclination angle sensor, which is matched with the leveling mechanism 1217 to realize automatic leveling of the basket 122, and as for the technology of keeping parts on the crank arm 121 horizontal, many technologies exist in the prior art, and mainly perform logic calculation and control rotation of each shaft through a controller to level, and details are not repeated herein; 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 an 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 aerial work platform 12 is designed with two operating states ("position 1" and "position 3") and an intermediate state ("position 2") such that when the work consist is traveling, the aerial work platform 12 is returned or in a safe position (defined as "position 0"):

(1) grabbing the wrist from the ground or from the powered flat car 11 (locking basket 122 moving function-power-assisted mechanical arm 2 unlocking, starting position when grabbing operation is started is defined as 'position 1'), see the position of fig. 4;

(2) the power-assisted mechanical arm 2 grabs the wrist arm and then bears and fixes the wrist arm to the aerial work platform 12, and the middle process of the high-altitude transportation of the wrist arm and the movement to the target position is started (before the movement is started, the moving function of the power-assisted mechanical arm 2 operation-unlocking hanging basket 122 is locked, and the moving process is defined as the state of No. 2 position).

(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 12 can be controlled remotely (switchable wireless and wired) in the gondola 122, and the hydraulic control valves on the work car consist are electro proportional valves and have manual emergency control functions. An emergency stop switch is arranged on the remote controller and is used for the aerial work platform 12 to stop action emergently. An emergency button is provided for deactivating the electrical system to retrieve the basket 122 in an emergency.

Further, a cantilever assembling rack 3 is placed on the overhead working truck 1 and used for assembling the cantilever on a construction site.

Further, the aerial lift platform 1 further comprises a wrist arm assembling flat car 13 connected with the power flat car 11, 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 wires, a part of the hanging basket 122 is arranged outside the wires in a staggered way, so that an operator can stand (the wires are 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 on one side of the central line of the vehicle on the power flat vehicle 11, 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 12.

Further, the aerial work platform 12 further includes a swing mechanism 123 connected to an end of the leveling mechanism 1217 remote from the telescopic arm 1216, so as to drive the hanging basket 122 to rotate around a vertical axis, and the hanging basket 122 may also rotate, thereby facilitating the installation and adjustment of the wrist on the hanging basket 122 by a worker.

According to another aspect of the present invention, there is provided a method of operating a power-assisted arm operating train mounted on a cantilever of a catenary, the method comprising the steps of:

1) the high-altitude operation vehicle 1 runs to the position of the upright post, and the assembly of the wrist arm is completed on a wrist arm assembly rack 3 arranged on the high-altitude operation vehicle 1;

2) the rotatable template 33 of the cantilever assembly rack 3 drives the cantilever to rotate 90 degrees, so that the cantilever is kept vertical, the crank arm 121 drives the hanging basket 122 to move, and then the cantilever is clamped by the power-assisted mechanical arm 2;

3) the crank arm 121 drives the hanging basket 122, the assisting mechanical arm 2 and the wrist arm to move to the front of the upright post, and the wrist arm is fixed on the upright post through the assistance of the assisting mechanical arm 2.

The utility model discloses a to the planar arrangement of each auxiliary device on the power flatcar 11 and the comprehensive research and the optimal design of crank arm 121 structural style, combine load and operation personnel area requirement, confirm the structural style of crank 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 11, as required by the size of the basket 122 and the overall planar layout of the parked position, such that the center of the basket 122 is offset from the centerline of the powered flat car 11.

(4) The basket 122 has the main technical parameters

The clearance after stopping operation and returning conforms to the GB146.1 standard gauge railway rolling stock clearance and the passenger special line railway rolling stock clearance.

The utility model discloses can adopt the self-contained formula operation car, crank arm 121 and hanging flower basket 122 above the configuration, also can utilize existing operation vehicle repacking. The modified vehicle does not change the technical requirements of the hydraulic system and the electrical system of the original vehicle, the performance configuration of hydraulic transmission and mechanical transmission, the weight of the whole vehicle is not more than the total weight of the original operating vehicle when configured, and the main technical parameters of the vehicle are not changed at all, including but not limited to the track gauge, the wheel diameter, the shaft array type, the shaft distance, the shaft number and the shaft weight, the maximum continuous running speed, the engine type, the rated power of the engine, the transmission mode, the braking mode, the emergency braking distance and the like.

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. A overhead working truck with contact net is characterized in that the overhead working truck comprises a power flat truck and an overhead working platform, wherein,

the aerial work platform comprises a crank arm and a hanging basket, 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, the base is fixedly mounted on the power flat car, the rotary table is mounted on the base, one end of the basic arm is mounted 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 mounted at one end, far away from the telescopic arm, of the telescopic arm, and the hanging basket is mounted 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 overhead working truck with overhead contact systems of claim 1, wherein the basket is an L-shaped basket.

3. The overhead working truck with overhead contact system of claim 1, wherein the crank arm can drive the bottom surface of the hanging basket to move to contact with the ground or contact with the surface of a platform truck for loading of the overhead working truck.

4. The overhead working truck with overhead contact system of claim 1, wherein the leveling mechanism comprises a servo motor which drives the hanging basket to rotate around a horizontal shaft, so that the hanging basket is kept horizontal at all times.

5. The overhead working platform of claim 1, further comprising a slewing mechanism coupled to an end of the leveling mechanism remote from the telescopic boom for driving the gondola to rotate about a vertical axis.

6. The overhead working truck with overhead contact systems of claim 1, wherein the telescopic cylinder is a servo cylinder.

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