CN204370263U - A kind of grooved rail hydraulic rail bender - Google Patents

Abstract

The utility model relates to a grooved rail hydraulic rail bender, which comprises a power device, a hydraulic system, a rail bender support and a hook head, the power device is connected with the motor of the hydraulic system through a cable, and the hydraulic cylinder of the hydraulic system is fixed on the In the middle of the rail bender support, the hook head is detachably installed on both sides of the rail bender support. The power unit is a gasoline generator or a diesel generator. The hydraulic system consists of a motor, a hydraulic oil tank, a gear pump and a hydraulic cylinder. Compared with the prior art, the beneficial effects of the utility model are: 1) the grooved steel rail can be quickly bent, and the curved rail operation with a small arc radius can be realized; 2) the curved rail has good quality, the rail deforms evenly, and is not easy to twist ;3) The equipment is easy to operate, which can reduce the labor intensity of workers and improve work efficiency; 4) The hook head can be selected according to the type of rail, the distance of the curved rail can be adjusted, and can be used for other rail bending or straightening operations; 5) It is especially suitable for Field track laying, self-contained power device, no external power supply required.

Description

Hydraulic rail bender for grooved rail

technical field

The utility model relates to a rail bending device, in particular to a grooved rail hydraulic rail bending device.

Background technique

The grooved rail is known as the "king of rails". Compared with ordinary rails, there is an asymmetrical groove on the rail head of this rail. Since the grooved rail can avoid the disadvantages of traditional rails affecting the passage of other vehicles, it is suitable for Rail transit with mixed roads has the characteristics of low operating noise, strong driving stability, low vehicle operating cost, and realization of green and low-carbon transportation. It represents the future development direction of urban rail transit and has a good market prospect. An important part of the track line is the curved rail. Improving the quality of the curved rail is the key to ensuring the safety of the track line. It can reduce the abnormal wear of the rail, prolong the service life of the rail, and ensure the safe, stable and uninterrupted operation of the train.

In recent years, trams using grooved rails have developed rapidly in my country. Due to the special shape of the track interface, the direction of the curve is not smooth during the bending process, which will deteriorate the internal connection between the wheel and the rail, increase the driving resistance, and make the train Swaying occurs, and the wear of the rails increases, which directly affects driving safety.

The rail bender is a special tool for straightening (or bending) the rail in the horizontal direction when laying and maintaining the railway. It can bend the straight rail as required, and can also straighten the curved rail. The currently used hydraulic rail benders are only suitable for use in places with power supply. Manual screw-type rail benders are usually used in field work environments, but the obvious disadvantages of manual screw-type rail benders are laborious and low efficiency. Only the cooperation of multiple people can complete the action of curved rail or straight rail, which is suitable for rails with few bending points and large bending radius. And use this equipment to bend the grooved rail, the arc of the curved rail is not round and smooth, and there are many hard bends in the rail, which is not suitable for the needs of modern production.

Contents of the invention

The utility model provides a grooved rail hydraulic rail bender, which can quickly bend the grooved steel rail and has good quality of the curved rail; the device is easy to operate, can reduce the labor intensity of workers and improve work efficiency, and is especially suitable for field track laying , self-powered device does not require external power supply.

In order to achieve the above object, the utility model adopts the following technical solutions to realize:

A hydraulic rail bender for grooved rails, including a power unit, a hydraulic system, a rail bender support and a hook head, the power unit is connected to the motor of the hydraulic system through a cable, and the hydraulic cylinder of the hydraulic system is fixed on the rail bender support In the middle of the seat, the hook head is detachably installed on both sides of the rail bender support.

The power unit is a gasoline generator or a diesel generator.

The hydraulic system is composed of a motor, a hydraulic oil tank, a gear pump and a hydraulic cylinder. The motor and the gear pump are fixedly connected. The gear pump is installed in the hydraulic oil tank. The hydraulic oil tank is connected to the hydraulic cylinder through a pipeline. Set the operating control lever.

The hook head is fixed on the support of the rail bender through a pin shaft, and a cushion block is arranged between the hook head and the bent grooved rail.

Several pin shaft holes are arranged symmetrically on both sides of the rail bender support, and running wheels are arranged at the bottom of the rail bender support.

Compared with the prior art, the beneficial effects of the utility model are:

1) It can quickly bend the grooved steel rail, and can realize the bending operation with a small arc radius;

2) The quality of the curved rail is good, the deformation of the rail is uniform, and it is not easy to twist;

3) The equipment is easy to operate, which can reduce the labor intensity of workers and improve work efficiency;

4) The hook head can be selected according to the type of rail, the distance of the curved rail can be adjusted, and it can be used for other rail bending or straightening operations;

5) It is especially suitable for field track laying, with its own power device and no external power supply required.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a sectional view along A-A of Fig. 1 .

In the figure: 1. Groove rail 2. Hook head 3. Pin shaft 4. Rail bender support 5. Power unit 6. Hydraulic cylinder 7. Motor 8. Operation control lever 9. Hydraulic oil tank 10. Block. 11. Pin hole 12. Pressure gauge 13. Traveling wheel 14. Backing plate

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:

See Fig. 1-Fig. 2, it is the structure schematic diagram of the present utility model, a kind of trough rail hydraulic bender of the present utility model, comprises power device 5, hydraulic system, rail bender support 4 and hook head 2, described power The device 5 is connected with the motor 7 of the hydraulic system by cables, the hydraulic cylinder 6 of the hydraulic system is fixed on the middle part of the rail bender support 4, and the hook head 2 is detachably installed on both sides of the rail bender support 4.

The power unit 5 is a gasoline generator or a diesel generator.

Described hydraulic system is made up of motor 7, hydraulic oil tank 9, gear pump and hydraulic cylinder 6, and motor 7 and gear pump are fixedly connected, and gear pump is installed in hydraulic oil tank 9, and hydraulic oil tank 9 communicates with hydraulic cylinder 6 through pipeline, and on pipeline A pressure gauge 12 is established, and an operation control lever 8 is established on the hydraulic oil tank 9 .

Described gib head 2 is fixed on the rail bender support 4 by bearing pin 3, and spacer 10 is provided between gib head 2 and the bent groove profile rail 1.

Several pin holes 11 are arranged symmetrically on both sides of the rail bender support 4 , and running wheels 13 are arranged at the bottom of the track bender support 4 .

The working principle of a hydraulic rail bender for grooved rails of the utility model is as follows: the power supply is provided by the power device 5 (gasoline or diesel generator), the motor 7 drives the gear pump to supply oil to the hydraulic system, and two hook heads 2 are used to hook The rail 1 is connected with the rail bender support 4 by the pin shaft 3. When the pump oil is loaded, the piston rod of the hydraulic cylinder 6 pushes the rail 1 in the middle to make it elastically deform until plastically deformed to achieve the purpose of straightening or bending.

The following examples are carried out on the premise of the technical solution of the utility model, and detailed implementation and specific operation process are provided, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

【Example 1】

The power unit 5 of this embodiment adopts a gasoline generator SC700T (rated power: 6500W; rated speed: 3000rpm); the motor 7 is a three-phase asynchronous motor Y112M-6; rated power: 2.2kW;

Rated pressure of the hydraulic system: 60MPa Flow rate: 60L/min; rated curved rail (straight rail) force: 105T; working stroke: 100mm; hydraulic oil adopts 46# anti-wear hydraulic oil; hydraulic oil tank 9 volume 40L;

The rail bender support 4 and the hook head 2 are welded by 25mm thick steel plates with high tensile strength.

The weight of the whole machine is 150kg.

There is an overflow valve in the hydraulic system, and the overflow valve opens when the system rated pressure is ±3MPa. When the rail bender is at the rated straight rail force, keep the pressure for 3 minutes, and the oil pressure drop is less than 3mpa.

The method of using the grooved rail hydraulic rail bender described in this embodiment is as follows:

Before work, check whether each part is in good condition, whether the connection is tight, whether the hydraulic oil tank 9 is short of oil, and the generator 5 is filled with gasoline. Start the gasoline generator 5 and the motor 7, observe whether the operation is normal, pull the operation control lever 8, and confirm that the piston rod of the hydraulic cylinder 6 is stretched out or reset smoothly under the condition of no load.

Pad the grooved rail 1 with the backing plate 14 and place it flat, adjust the height of the rail bender support 4, and ensure that the ejection position of the piston rod of the hydraulic cylinder 6 is flush with the horizontal centerline of the grooved rail 1.

Hook the hook head 2 to the grooved rail 1 on both sides of the position where the piston rod of the hydraulic cylinder 6 is pushed out, the bottom surface of the hook head 2 is close to the upper surface of the rail 1, and the hook head 2 is fixed on the rail bender support 4 with the pin shaft 3 Corresponding pin hole 11, and plug the pad 10 between the hook head 2 on the other side of the hydraulic cylinder 6 piston rod ejection position and the rail waist, after the piston rod withstands the middle position of the rail waist, the rail bender supports Seat 4 is locked on rail 1. Pull the operation control lever 8, slowly load, and the piston rod of the hydraulic cylinder 6 stretches out to deform the steel rail 1. After one pressure application is completed, promote the rail bender support 4 to slide on the rail 1, pressurize once with the hydraulic cylinder 6 piston rods at intervals of 200mm. At the same time, use the curved template to stick to the inner side of the track until the curved arc of the track meets the design requirements.

After the work is finished, pull out bearing pin 3, take off cushion block 10, unload hook head 2. Check each part for permanent deformation and other abnormal phenomena, clean the oil circuit with cleaning agent or pure industrial alcohol, and save it for next use.

When the utility model is used, the suitable hook head 2 can be selected according to the type of rail 1, and the fixed distance of the hook head 2 can be selected according to the bending radius. The pressure gauge 12 can display the system pressure, effectively preventing excessive deformation. The application of the utility model can reduce the labor intensity of workers, and the labor efficiency is more than 3 times higher than that of the lead screw rail bender. It can also improve the site construction conditions of the track, and is more suitable for field operation environments such as mines, ports, forest farms, and transportation. At the same time, it can solve the horizontal and vertical curved or straight rail operations of light and heavy rails.

Claims (5)

1. A grooved rail hydraulic rail bender is characterized in that it comprises a power unit, a hydraulic system, a rail bender support and a gib, the power unit is connected with the motor of the hydraulic system by a cable, and the hydraulic cylinder of the hydraulic system It is fixed in the middle of the rail bender support, and the hook head is detachably installed on both sides of the rail bender support. 2 . A grooved rail hydraulic rail bender according to claim 1 , wherein the power device is a gasoline generator or a diesel generator. 3. A grooved rail hydraulic rail bender according to claim 1, wherein the hydraulic system is composed of a motor, a hydraulic oil tank, a gear pump and a hydraulic cylinder, the motor and the gear pump are fixedly connected, and the gear pump is installed In the hydraulic oil tank, the hydraulic oil tank is connected to the hydraulic cylinder through a pipeline, a pressure gauge is arranged on the pipeline, and an operation control lever is arranged on the hydraulic oil tank. 4. A grooved rail hydraulic rail bender according to claim 1, characterized in that, the hook head is fixed on the support of the rail bender through a pin, and there is a gap between the hook head and the bent grooved rail. There are spacers. 5 . A grooved rail hydraulic rail bender according to claim 1 , characterized in that several pin holes are arranged symmetrically on both sides of the rail bender support, and running wheels are arranged at the bottom of the rail bender support. 6 .