CN211619805U - Column type cantilever crane for railway engineering vehicle - Google Patents

Abstract

The utility model relates to a column cantilever crane for railway engineering vehicle, including stand (7), crossbeam (8) and drive arrangement, crossbeam (8) are installed on stand (7) through rotation support (5) and fixed stay (6), and this crane passes through flange (1) to be fixed in the carriage of railway engineering vehicle, and the installation is simple, and the interface is few; the upright post (7) is of a hollow structure, the driving device is arranged inside the upright post (7), the space in a carriage can be saved, and the whole cantilever hoisting device is compact in structure, small in size and light in weight; the edge of the beam (8) is provided with a rack (10). The rack 10 serves as a drive guide for the boom-running mechanism, and is moved smoothly in the boom direction, and can be locked at each moving position.

Description

Column type cantilever crane for railway engineering vehicle

Technical Field

The utility model relates to a railway machinery technical field particularly, relates to a column cantilever crane for railway engineering car.

Background

In some special railway engineering vehicles, because of the requirement of operation function, working mechanisms and the like in the carriage need to be rotated out of the carriage, or goods and the like outside the carriage are rotated into the carriage, and the transportation process is required to be flexible, rapid and accurate to position due to the limitation of time and space of railway construction intervals.

For example, chinese patent application publication No. CN103708372A discloses a mobile cantilever crane, wherein one end of a beam is mounted on the top of a column, and the other end is a cantilever. The electric hoist is hung below the cantilever close to the upright post. The lower part of the beam is fixedly connected with a walking beam formed by channel steel with opposite notches, and two sides of the portal frame of the pulley trolley are provided with walking wheels which are embedded in the notches of the walking beam in a clamping way. The pulley is located between the frame side plates. The top surface of the beam is fixedly provided with the double-rope-outlet electric winch, and the two traveling steel wire ropes respectively bypass the small fixed pulleys at the two ends of the traveling beam and are fixedly connected to the pulley trolley to pull the pulley trolley to move along the traveling beam. The hoisting steel wire rope of the electric hoist is fixed on the pulley trolley after passing around the pulley of the pulley trolley and then passing around the movable pulley of the lifting hook. The top end of the upright post is inserted into a sleeve fixedly connected with one end of the beam, and a driving gear fixed on a motor at the tail part of the beam is combined with a large gear hoots on the upright post to drive the cantilever to rotate. The base of the pillar can be provided with a fixed supporting leg of the steering wheel and is fixed on an automobile chassis or a cross flat car through an interface. However, the hoisting device has a complex structure and occupies a large space, and cannot meet the requirement of the occasions with limited space of the railway engineering vehicle.

For example, chinese utility model patent publication No. CN 201626780U discloses a fixed column type cantilever lifting device, which comprises a column, a base, a lifting arm support, and an electric hoist, wherein the base of the column is connected to the base, and the column is composed of a pillar at the lower section and a pivot at the upper section; the hoisting arm support is composed of a rotating cylinder, a main beam, an auxiliary beam, a main beam pull rod and an auxiliary beam pull rod, wherein the rotating cylinder is vertically arranged, one ends of the main beam and the auxiliary beam are respectively hinged on the rotating cylinder and are horizontally arranged, the main beam pull rod and the auxiliary beam pull rod are obliquely arranged, two ends of the main beam pull rod and the auxiliary beam pull rod are respectively hinged with the upper end of the rotating cylinder and the other ends of the main beam and the auxiliary beam, and the electric hoist is arranged on the main beam; the rotating cylinder is sleeved on the pivot, and a thrust bearing and a radial bearing which are arranged between the rotating cylinder and the pivot are arranged at the tops of the rotating cylinder and the pivot; the rotary device is composed of a power device, a small outer gear ring, a large inner gear ring, a connecting disc, a roller seat body and at least three rollers. However, the hoisting device is mostly used for open spaces such as well sites, and meanwhile, the hoisting weight of the crane is large, so that the crane is not suitable for light working mechanisms and goods of railway engineering trains.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect of the application of the existing hoisting technology on an engineering train, the utility model provides a column type cantilever crane for a railway engineering vehicle, which can conveniently complete the transfer of working mechanisms, goods and the like inside and outside a carriage; the device can also be expanded and applied to other fields requiring simple installation, small occupied space, accurate positioning in the transfer process and convenient operation; the automatic transfer device can improve the automation and the mechanization degree, one operator can finish the transfer of a heavier working mechanism and goods, the labor intensity of workers is effectively reduced, the working efficiency is improved, and the installation space is saved for the railway engineering truck to the maximum extent.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model relates to a column cantilever crane for a railway engineering vehicle, which comprises a column, a beam and a driving device, wherein the beam is arranged on the column through a rotary support and a fixed support, and the crane is fixed in a carriage of the railway engineering vehicle through a flange, so that the installation is simple and the interfaces are few; the upright post is of a hollow structure, the driving device is arranged inside the upright post, the space in a carriage can be saved, and the whole cantilever hoisting device is compact in structure, small in size and light in weight; the edge of the beam is provided with a rack. The rack is used as a driving guide along the cantilever walking mechanism, moves stably and can be locked at each moving position.

Preferably, the drive means comprises a rotary servo motor and a rotary gearbox. The servo motor provides power for the rotary gearbox, the driving gear is installed on the rotary gearbox, and the driving gear is meshed with the rack on the cantilever to move.

In any of the above solutions, it is preferable that the rotary support is connected to the rotary transmission case by a shaft key.

In any of the above embodiments, the rotary servo motor is preferably provided with an absolute value encoder, which can be programmed to control the rotation of the cantilever.

In any of the above aspects, preferably, the cross member is provided with a mechanism for moving along the cantilever.

In any of the above schemes, preferably, the along-cantilever moving mechanism includes a box, a roller, a transmission gear, a translation gearbox and a servo motor, and an absolute value encoder is arranged in the servo motor. The servo motor in the cantilever moving mechanism works to drive the translational reduction box to work, and the translational reduction box is meshed with a rack on the cantilever through a gear to realize the movement of the walking mechanism along the cantilever; an absolute value encoder is arranged in the servo motor, program setting can be carried out when the servo motor moves, and then the electric hoist is accurately controlled to run along the cantilever.

In any of the above solutions, it is preferable that the roller is located on an H-shaped channel of the cross beam, and the roller moves in the H-shaped channel to reduce resistance, and provide support guidance and have better rigidity.

In any of the above aspects, it is preferable that the electric block is detachably suspended along a lower side of the boom movement mechanism. The electric hoist is hung below the cantilever moving mechanism and moves along the cantilever moving mechanism, the electric hoist can lift and descend the lifting hook, an absolute value encoder is used for recording the lifting and descending, and the lifting or descending height can be used for program control and position information reading.

The utility model discloses a column cantilever crane for railway engineering car has following advantage:

1. the crane is installed in a carriage of a railway engineering vehicle through an installation flange, so that the installation is simple, and the number of interfaces is small;

2. the rotary driving device is arranged in the upright post, so that the installation space in the carriage can be saved, and the whole cantilever hoisting device has a compact structure, small volume and light weight;

3. the structure is simple, the main parts are the upright column and the cantilever beam, and the electric hoist can be disassembled and is convenient to install;

4. the cantilever is driven by the rack along the cantilever direction, the movement is stable, and the locking can be carried out at each moving position;

5. the rotating direction, the moving direction and the lifting direction are provided with absolute value encoders, programs can be set, the control device is particularly suitable for control under the condition that the space in a carriage and the railway line clearance are limited, and position setting can be carried out according to actual application working conditions, so that control and accurate positioning in the transfer process are realized.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a column jib crane for a railway work vehicle according to the present invention;

fig. 2 is a side view of the preferred embodiment of the column jib crane for railway mobile machinery vehicle shown in fig. 1 according to the invention;

fig. 3 is a schematic structural view of the mechanism for moving along the jib in the preferred embodiment shown in fig. 1 of a column jib crane for railway work vehicles according to the present invention;

fig. 4 is a state view of the preferred embodiment of the column jib crane for railway vehicles according to the present invention, shown in fig. 1, mounted on the top of a car.

Detailed Description

The following description will further describe a concrete embodiment of a column type cantilever crane for a railway engineering truck according to the present invention with reference to the attached drawings.

Referring to fig. 1 and 2, the column cantilever crane for the railway engineering truck of the present invention comprises a column 7, a beam 8 and a driving device, wherein the beam 8 is mounted on the column 7 through a rotary support 5 and a fixed support 6, and the crane is fixed in a carriage of the railway engineering truck through a flange 1, so that the installation is simple and the number of interfaces is small; the upright post 7 is of a hollow structure, the driving device is arranged inside the upright post 7, the space in a carriage can be saved, and the whole cantilever hoisting device is compact in structure, small in size and light in weight; the edge of the cross beam 8 is provided with a rack 10. The rack 10 serves as a drive guide along the boom running gear, moves smoothly, and can be locked at each moving position.

In the present embodiment, the drive means comprise a rotary servomotor 2 and a rotary gearbox 3. The servo motor 2 provides power for the rotary gearbox 3, the driving gear is installed on the rotary gearbox 3, and the driving gear is meshed with the rack on the cantilever to move.

In the present embodiment, the rotary support 5 is connected to the rotary transmission case 3 by a shaft key.

In this embodiment, the rotary servo motor 2 is provided with an absolute value encoder, which can be programmed to control the rotation of the cantilever.

As shown in fig. 3, the structure of the mechanism moving along the cantilever according to the preferred embodiment of the invention shown in fig. 1 is shown for a column cantilever crane of a railway working vehicle.

In this embodiment, the cross beam 8 is provided with a cantilever-moving mechanism 11.

In this embodiment, the along-cantilever moving mechanism 11 includes a box 11-1, a roller 11-2, a transmission gear 11-3, a translation gearbox 11-4, and a servo motor, and an absolute value encoder is disposed in the servo motor. The servo motor in the cantilever moving mechanism 11 works to drive the translational reduction box to work, and the translational reduction box is meshed with a rack on the cantilever through a gear to realize the movement of the walking along the cantilever moving mechanism 11 along the cantilever; an absolute value encoder is arranged in the servo motor, program setting can be carried out when the servo motor moves, and then the electric hoist is accurately controlled to run along the cantilever.

In the embodiment, the roller 11-2 is located on an H-shaped channel of the beam 8, and the roller 11-2 moves in the H-shaped channel to reduce resistance.

In this embodiment, the electric block 12 is detachably suspended along the lower side of the boom movement mechanism 11. The electric hoist 12 is hung below the cantilever moving mechanism 11 and moves along the cantilever moving mechanism 11, the electric hoist 12 can realize the lifting and descending of the lifting hook, the lifting and descending are recorded by an absolute value encoder, and the lifting or descending height can be subjected to program control and position information reading.

The crane of the utility model can be arranged on the top of the carriage of the vehicle body through the flange (as shown in figure 4), thereby saving space.

It will be understood by those skilled in the art that a column jib crane for a railway truck according to the present invention comprises any combination of the parts described in this specification. These combinations are not described in detail herein for the sake of brevity and clarity, but the scope of the invention, which is defined by any combination of parts of the present description, will become apparent after a review of the present description.

Claims (8)

1. The utility model provides a column cantilever crane for railway engineering car, includes stand (7), crossbeam (8) and drive arrangement, and crossbeam (8) are installed on stand (7) through rotation support (5) and fixed stay (6), its characterized in that: the crane is fixed in a carriage of a railway engineering vehicle through a flange (1); the upright post (7) is of a hollow structure, and the driving device is arranged inside the upright post (7); the edge of the beam (8) is provided with a rack (10).

2. A column jib crane for railroad engineering vehicles as claimed in claim 1, wherein: the driving device comprises a rotary servo motor (2) and a rotary gearbox (3).

3. A column jib crane for railroad engineering vehicles as claimed in claim 1, wherein: the rotary support (5) is connected with the rotary gearbox (3) through a shaft key.

4. A column jib crane for railroad engineering vehicles as claimed in claim 2, wherein: an absolute value encoder is arranged on the rotary servo motor (2).

5. A column jib crane for railroad engineering vehicles as claimed in claim 1, wherein: the beam (8) is provided with a cantilever moving mechanism (11).

6. A column jib crane for railroad engineering vehicles as claimed in claim 5, wherein: the cantilever moving mechanism (11) comprises a box body (11-1), a roller (11-2), a transmission gear (11-3), a translation gearbox (11-4) and a servo motor, wherein an absolute value encoder is arranged in the servo motor.

7. A column jib crane for railroad engineering vehicles as claimed in claim 6, wherein: the rollers (11-2) are positioned on the H-shaped channel steel of the cross beam (8).

8. A column jib crane for a railway working vehicle according to claim 5 or 6 wherein: an electric hoist (12) is detachably suspended along the lower part of the cantilever moving mechanism (11).

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