RU191642U1 - Attachment for earthmoving equipment designed to bend a rail link when laying a railway track - Google Patents

Abstract

The utility model relates to devices that provide positioning of stacked links of a railway track, namely, attachments to earthmoving equipment for mechanizing the process of placing links on the design axis of the track by creating a pulling force on the free part of the stacked link. The hinged device comprises a frame with a base for connecting to the mounting surface of earthmoving equipment, a power drive mounted on the base, and a stretch. The power drive is made in the form of a mechanical multiplier and contains a hydraulic cylinder, powered by the hydraulic system of earthmoving equipment, a beam movably connected to the frame, a carriage movably connected to the beam and connected to the frame by means of traction chains, making it possible to move along the beam to the left and the right side, with one end of the hydraulic cylinder connected to the beam and the other end to the frame. The extension is made in the form of a chain, one end of which is connected to the carriage, and a rail grip is fixed at the other end. The technical result of the claimed utility model is to increase the accuracy of the installation of the link of the railway track on the design axis when it is bent, reduce labor costs, as well as reduce the dimensions of the device. 5 cp f-ly, 15 ill., 1 ave.

Description

Technical field

The utility model relates to devices that provide positioning of stacked links of a railway track, namely, attachments to earthmoving equipment for mechanizing the process of placing links on the design axis of the track by creating a pulling force on the free part of the stacked link.

State of the art

The following technical solutions are known from the prior art.

A device for laying and bending the links of a railway track in curves in sections containing at least two tracks (RU 2569451, ЕВВ 29/02, publication date 09/10/2015), made in the form of a beam designed for connection to a laying crane and containing a metal frame with load gripping devices and blocks installed on it. The device is equipped with a corrective hydraulic cylinder with an extension cord and a gripper, as well as a pumping station. The capture is designed to fix it on the rail of the adjacent track. When using the device with a railway laying crane, lower the rear end of the link of the rail-sleeper lattice onto the ballast, placing the link in the plan behind the project chord, and join one rail thread with the first adjacent thread of the previously laid link. Then, using the corrective hydraulic cylinder mounted on the traverse, they fix it by gripping the adjacent track on the rail yarn and move the stacked link relative to the neighboring track.

The disadvantage of this device is the need to connect it to a laying crane, which makes it impossible to work on single-track sections of the track. Another disadvantage is the lack of the ability to stack links in small radius curves for one technological cycle of the device due to the limited and insufficient working stroke of the hydraulic cylinder rod.

The closest analogue in technical essence to the claimed object is an attachment to earthmoving equipment, namely, to a bulldozer, for moving rail links. The device comprises a power drive and a chain extension with the capture of the rail link. The power drive contains a hydraulic cylinder connected to the hydraulic system of earthmoving equipment, a carriage on which a lifting grip is mounted to hold the rail link, and a cantilever truss. The carriage is movably mounted on a monorail mounted on a cantilever truss across the axis of the bulldozer. A lifting hydraulic cylinder and a hydraulic cylinder for its articulated bending are attached to the farm. A hydraulic cylinder is pivotally attached to the carriage at one end, which is connected at the other end to one of the two squares pivotally mounted on the carriage. At the end of the cantilever truss, a monorail is pivotally suspended, to the ends of which are mounted hydraulic cylinders connected to the carriage (SU 391213, ЕВВ 33/06, publication date 07.25.1973).

The disadvantages of this attachment are the complexity and bulkiness of the design, as well as the inability to work on a small subgrade, for example, on embankments and excavations, since the movement of rail links, even at short distances, is carried out when moving the bulldozer, the lifting grip of which is perpendicular to the plane of the path . Moreover, the accuracy of the installation of the rail lash link on the design axis of the track is low, because determined by the accuracy of the bulldozer and the stroke of the hydraulic cylinders.

The technical problem of the claimed utility model is to overcome the technical disadvantages inherent in analogues, which leads to the need to expand the arsenal of attachments to earth moving equipment by creating a device that allows the free end of the rail link to be bent to small radii with increased maneuverability and productivity.

Disclosure of Entity

The technical result of the claimed utility model is to increase the accuracy of installation of the link of the railway track on the design axis when it is bent, including at small radii (less than 350 m), as well as reducing labor costs and reducing the dimensions of the device.

The technical result is achieved by creating an attachment to earthmoving equipment designed to bend a rail link when laying a railway track, containing a frame with a base for connecting to the installation (mating) surface of earthmoving equipment, a power drive mounted on the frame, and stretching with the capture of the rail link. The power drive is made in the form of a mechanical multiplier containing a carriage, a hydraulic cylinder, powered by the hydraulic system of earthmoving equipment, a beam mounted with the possibility of longitudinal movement along the frame, with sprockets mounted on the ends of the beam. The carriage is mounted for movement along the beam and is connected on two sides to the frame by means of traction chains enveloping the sprockets. The hydraulic cylinder is connected at one end to the frame and at the other with the beam to move the beam relative to the frame, which entails the movement of the carriage relative to the beam when controlling the flow rate of the hydraulic fluid of the earth moving machinery. The extension with one free end is connected to the carriage, and the gripper of the rail link is fixed on the other.

The presence of the base on the frame (which can be performed, for example, in the form of a bracket or flange) allows you to attach the attachment to any type of earthmoving equipment similar to attachments.

When using the claimed device as part of earthmoving equipment and moving such equipment along the projected axis of the track, the traction force coming from the extension acts on the displaced end of the rail link. Such an effort occurs when the power drive is linearly driven by moving the hydraulic cylinder rod, as a result of which the beam moves along the frame, while the position of the sprockets accordingly changes relative to the attachment points of the traction chain on the frame and carriage, the length of the traction chain relative to the outer and inner surfaces of the beam is redistributed , which in turn allows the carriage to move along the beam.

The presence of asterisks ensures a smooth transition of the chain from one side of the beam to the other when moving it.

Thus, the unit of stroke of the hydraulic cylinder is converted into two units of stroke of the carriage, which allows you to move the stretch over long distances with a smaller stroke of the hydraulic cylinder. This design of the multiplier allows you to bend the rail links to the required radii, including small ones (less than 350 m), with increased accuracy, and also provides a reduction in the dimensions of the device and a reduction in labor costs when bending the rail link.

The device can be used with any type of earthmoving equipment, for example, with a bulldozer or grader, if you have the means to connect to their hydraulic system as usual attachments.

In the particular case of the implementation of the utility model of the claimed device can be performed as follows.

The base of the frame can be made in the form of a bracket or flange.

The hydraulic cylinder may preferably be configured to horizontally move its rod.

The extension can be made chain, which additionally improves the reliability of connecting the device to the rail link, as well as the ability to adjust the distance from the carriage to the attachment point of the gripper to the rail link (it is possible to connect the carriage to any link of the extension chain) and, accordingly, adjust the angle of influence of the pulling force, attached to the rail link.

The extension can be pivotally connected to the carriage, for this the carriage can contain an eye.

A transport stop can be additionally fixed to the beam sprocket to ensure the beam is fixed relative to the drive frame.

The device may further comprise a transport stopper on the rail grip for fixing it relative to the rail.

Brief Description of the Drawings

The essence of the utility model is illustrated by drawings, which shows one of the options for implementing the utility model.

FIG. 1 - device for bending the links of the railway track, top view;

FIG. 2 - power drive device, straight view;

FIG. 3 is a top view of the power drive of the device;

FIG. 4 - section aa of the power drive of the device;

FIG. 5 - section BB of the power drive of the device;

FIG. 6 - chain extension;

FIG. 7 - connection diagram of the device to the hydraulic system of earth moving equipment;

FIG. 8 is a side view of a device mounted on a bulldozer;

FIG. 9 - a device mounted on a bulldozer, top view;

FIG. 10 is a side view of a device mounted on a motor grader;

FIG. 11 - device mounted on a grader, top view;

FIG. 12 is a diagram of the arrangement of earth moving equipment with a device for bending the links relative to the railway track;

FIG. 13 is a photo of a device mounted on a bulldozer;

FIG. 14 is a photo of a part of a power drive - a carriage connection with a beam and with a chain extension and a beam connection with a frame;

FIG. 15 is a photo of a device mounted on a bulldozer.

The positions in the drawings indicate:

1 - base;

2 - power drive;

3 - chain stretching;

4 - frame;

5 - beam;

6 - carriage;

7 - a traction chain;

8 - a hydraulic cylinder;

9 - an asterisk;

10 - transport stopper;

11 - guide carriage;

12 - guide beam;

13 - a tightening screw;

14 - chain chain extension;

15 - rail grab;

16 - stopper;

17 - block safety valves;

18 - an installation arm;

19 - hydraulic sleeve.

An attachment to earth moving equipment designed to bend a rail link when laying a railway track contains a base 1 (bracket), a power drive 2 installed on the base 1, a chain extension 3 and a frame 4 connected to the base 1.

The power drive 2 is made in the form of a mechanical multiplier and comprises an I-beam 5 mounted movably relative to the frame 4, a carriage 6 connected to the frame 4 by means of two traction chains 7, and a hydraulic cylinder 8, one end of which is connected to the frame 4, and the other to beam 5 (Figs. 1-4, 14). At the ends of the beam 5, sprockets 9 are installed, on one of which a transport stop 10 is installed to lock / unlock the power drive 2 (Fig. 3). The carriage 6 is mounted to move along the beam 5 to the left and right sides along the guide 11. The beam 5 is mounted to move along the frame 4 along the guide 12 (Fig. 4, 14). The tension of the traction chain 7 and the adjustment of the middle position of the carriage 6 is carried out by the tensioning screw 13 (Fig. 5). The chain extension 3 is made in the form of a chain 14, one end of which is connected to the carriage 6, and the rail grip 15 is fixed at the other end of it. A stopper 16 is fixed to the chain extension (Fig. 6). Connecting tubes extend from the attachment hydraulic cylinder connected to the safety valve block 17 located on the mounting bracket 18. The safety valve block 17, in turn, is connected to a hydraulic sleeve 19, designed to connect to the lines of the earthmoving equipment, providing power to the device (Fig. 7).

Utility Model Implementation

To bend the links of the railway track, an earth moving machine (earthmoving, construction equipment) is selected, the mass of which is at least 20 tons, for example, a bulldozer or motor grader (Figs. 8-11, 13-15). Before starting installation work on the installation of equipment, it is necessary to dismantle the attachments installed in the aft of the earthmoving equipment, such as a towing eye, a cultivator, etc. All parts of the attachment must be dismantled, which are bolted to the installation (mating) surface of the earthmoving transport technicians.

The carriage 6 is connected to the beam 4 by means of the guides 11, the beam, in turn, is connected to the base 1 by the guides 12. One end of the hydraulic cylinder 8 is connected to the bracket of the beam 5, and the other end is connected to the beam 1. Each traction chain 7, enveloping the sprocket 9 of one the end part is attached to the frame 4, and its second end part is connected to the carriage 6 by means of tension screws 13. The beam 5 is fixed relative to the frame 4 in the transport position by installing the transport stop 10. The carriage 6 contains left arm, which is carried out for fixing extensions 3 comprising in its composition circuit 14, a rail grip 15 and the stopper 16.

The device is installed on the aft of earthmoving equipment and fixed by means of connecting elements. The hydraulic drive of the power drive 1 is connected to the hydraulic system of the earthmoving equipment in a standard way - just like any attachments are connected. At the same time, the block of safety valves 17 of the hydraulic system is adjusted so as to provide a supply to the rod cavity of the hydraulic cylinder 16 MPa and 11 MPa to the piston, to ensure the same pulling and pushing force on the rod of the hydraulic cylinder 8.

Earth-moving machinery with equipment is placed along the axis of the laid path, providing a gap of 200-300 mm between the power drive carriage 6 and the end of the rail of the stacked link when the rail grip 15 is located to provide the necessary traction force (transverse or at an angle) (Fig. 12). The free end of the link should have up to 600 mm of free space under the sole of the sleepers. Set the capture 15 of the chain extension 3 to the rail farthest from the carriage 6 of the power drive 1 and fix it with a stopper 16.

By moving the carriage 6 along the beam 5 of the power drive 1, which is realized by smoothly moving the control handle of the distributor of the hydraulic drive of the attached equipment, set it in such a way that the size between the end of the far rail and the eye of the carriage 6 is 2.1-2.3 m. Install the chain link stretch marks 3 into the eye of the carriage 6 of the power drive 1 and fix it with a finger.

The operation of the device is as follows.

By smoothly moving the control handle of the distributor from the cab of the earthmoving machinery, the power actuator 1 starts its working stroke and sets the axis of the stacked link on the design axis of the track.

In the process, the device controls the speed of the rod of the hydraulic cylinder 8 and the direction of its movement by moving the handle of the distributor lever, which provides power to the lines of the mounted device. Due to the movement of the rod of the hydraulic cylinder 8, the beam 5 moves relative to the frame 4 of the drive 1. In this case, the traction chains 7, the ends of each of which are attached to the carriage 6 and the frame 4, respectively, are redistributed on the outer and inner sides of the beam 5, due to which the carriage is moved 6 along the beam 5. This movement causes the movement of the carriage 6 relative to the beam 5.

When moving the hydraulic cylinder 8 to the left, the beam 5 with asterisks 9 also moves to the left relative to the frame 4 and relative to the attachment points of the traction chain 7 (on the frame 4 and the carriage 6), while the traction chain 7 is redistributed along the external and internal surfaces of the beam 5, which ensures moving the carriage 6 to the left along the beam 5.

Also, when the hydraulic cylinder 8 is moved to the right, the beam 5 moves accordingly. Moreover, due to the redistribution of the traction chain 7 along the surface of the beam 5, the carriage 6 is moved to the right.

Thus, the chain extension 3 during operation of the device transfers the traction force of the carriage 6 of the power drive 1 to the rail of the stacked link, due to which it is bent to the desired radius.

After this, the tension of the chain extension 3 is relaxed, its grip 15 is removed from the end of the rail and the rail link is fixed on the sleepers.

In subsequent cycles, the chain extension 3 is not disconnected from the eye of the carriage 6, and the carriage 6 itself is set at a distance of 1.5-1.8 meters relative to the end of the far rail of the stacked link.

Example 1

Maximum pulling force on a chain stretch - 5000 kg,

The maximum stroke of the power drive carriage is 3000 mm,

The pressure in the hydraulic system of the power drive is not more than 16 MPa,

Dimensions in transport position - no more than 3200 mm.

The hinged removable device is made with the following dimensions:

- beam length with sprockets - 3250 mm,

- the length of the traction chain of the carriage - 2200 mm,

- carriage width - 800 mm,

- chain extension length - 3.5 m,

- the values of the radii on which the rail link was bent when exposed to transverse tractive effort - 200 m, 250 m, 300 m,

Thus, when using the claimed device provides an increase in the accuracy of installation of the link of the railway track on the design axis.

Claims (6)

1. An attachment to earthmoving equipment designed to bend a rail link when laying a railway track, comprising a frame with a base for attaching to the mounting surface of earthmoving equipment, a power drive mounted on the frame, and an extension with a grip of the rail link, moreover, power the drive is equipped with a carriage and a hydraulic cylinder, powered by the hydraulic system of earthmoving equipment, and a stretch with one end grip is connected to a carriage, different the fact that the power drive is made in the form of a mechanical multiplier containing a beam, at the ends of which sprockets are mounted, and the beam is connected to the frame with the possibility of longitudinal movement along it, the carriage is mounted to move along the beam and connected on both sides to the frame by means of traction chains, envelope sprockets - while the hydraulic cylinder is connected at one end to the frame and at the other end to the beam with the possibility of moving the beam relative to the frame, which entails the movement of the car heel relative to the beam when controlling flow of hydraulic oil earthmover equipment. 2. An attachment device according to claim 1, characterized in that it is equipped with means for connecting a bulldozer or motor grader to the hydraulic system. 3. The hinged device according to claim 1, characterized in that the extension is made chain. 4. The attachment according to claim 3, characterized in that the extension is pivotally connected to the carriage. 5. The hinged device according to claim 1, characterized in that a stop is fixed to the brace. 6. An attachment device according to claim 1, characterized in that it comprises a transport stopper mounted on an asterisk for fixing the beam relative to the frame.

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