RU2775339C1 - Drum wheel flange lubricator - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: device relates to railway transport, in particular to on-board wheel flange lubricators adapted for installation on rail vehicles that lubricate the rubbing surfaces of the wheel-rail friction pair. The drum wheel flange lubricator contains a housing and a drive mechanism. The lubricating rods are placed inside the drum located inside the housing, and the drive mechanism is equipped with a pusher, while the drum is equipped with a ratchet wheel, and the ratchet wheel thrust is fixed inside the housing.

EFFECT: as a result, the performance characteristics of the wheel flange lubricator are increased and the costs of its maintenance are reduced.

13 cl, 4 dwg

Description

The device relates to railway transport, in particular to on-board comb lubricators adapted for installation on rail vehicles, lubricating the friction surfaces of a wheel-rail friction pair.

The prior art liquid and rod onboard comb lubricators.

One of the most common representatives of the liquid system is the AGS-8 comb lubricator and its modifications. The liquid comb lubricator delivers lubricating fluid through nozzles pumped from a tank into which lubricating fluid is pumped.

Significant disadvantages of such a system include: the complexity of regulating the spray system; low reliability of the system when operating in conditions of increased environmental pollution with dust and sand, which leads to increased wear of the wheel and rail.

One of the most common representatives of the rod lubrication system is the GRS-2 rod comb lubricator. A solid lubricating rod is placed in the housing and is continuously supplied by means of a preloaded spring.

The significant disadvantages of such a system include a large consumption of lubricant, as a result, a low power reserve, which makes such comb lubricators ineffective when installed on rail vehicles carrying out trunk work.

Known comb lubricator, taken as a prototype (patent for the invention of the Russian Federation RU 2670338, application dated March 16, 2017), made in the form of a housing filled with lubricating rods directed towards the lubricated friction surface, while part of the housing is made with the placement of a drive mechanism in it.

The disadvantage of this device is the continuous supply of lubricating rods to the lubrication surface, which increases the consumption of lubricating rods.

The technical objective of the invention is to create a device devoid of the disadvantages of analogues, which would allow to increase the maintenance interval of the comb lubricator, while improving its performance.

The technical result of the invention is to increase the performance of the comb lubricator and reduce the cost of its maintenance.

To achieve the stated technical result, a drum comb lubricator is proposed, which contains a housing and a drive mechanism, while the lubricating rods are placed inside the drum located inside the housing, and the drive mechanism is equipped with a pusher, while the drum is equipped with a ratchet wheel, and a ratchet wheel rod is fixed inside the housing.

The technical essence of the invention is illustrated by the following figures.

On FIG. 1 shows a general view of the drum comb lubricator.

On FIG. 2 shows the drum mechanism of the comb lubricator.

On FIG. 3 shows a general view of the rod pusher.

On FIG. 4 shows a general view of the ratchet wheel.

The drum comb lubricator basically consists of the following components and parts, shown in Fig. one:

- drum for lubricating rods 1 - designed to accommodate lubricating rods in it, the drum is placed inside the housing 2;

- housing 2 - the main functional parts are placed in the housing, the housing can be made both open and closed;

- drum stopper 3 - the drum stopper is mounted on the body 2, designed to fix the drum in the specified positions during operation of the device, the drum stopper is equipped with a return device, compression springs or flat bending springs can be used as a return device;

- drive device 4 - the drive device is designed to act on the lubricating rods to move them into the friction zone, as a drive device, a pneumatic cylinder connected to the pneumatic system of the rail transport can be used, an electric drive device connected to the electrical system of the rail transport can also be used;

- ratchet wheel rod 5 - is placed inside the housing, interacts with the pusher 6 and the ratchet wheel 11 to fix the drum 1 in the specified positions, the rod is spring-loaded on the housing by the return device 17 to return to its original position;

- pusher 6 - ensures the transmission of the force of the drive device 4 to drive the lubricating rods into the friction zone, rotation of the drum 1 is ensured due to the switching profile 14 through the interaction of the thrust 5 and the ratchet wheel of the drum 11;

- elastic obturator 7 - provides stable fixation of the lubricating rods inside the drum 1, prevents spontaneous loss of the rods from the drum.

The drum comb lubricator consists of a housing 2 and a drive device 4. The lubricating rods are located inside the drum 1, placed inside the housing 2, and the drive device 4 is equipped with a pusher 6. The drum 2 is equipped with a ratchet wheel 11, and the ratchet wheel 5 is fixed inside the housing 2.

The following elements are provided in the drum (Fig. 2):

- locking grooves 8 - designed to fix the drum stopper 3 in the specified positions, each groove has a flat wall in the direction of movement of the drum for sliding and a straight wall in the opposite direction to prevent rotation, the number of locking grooves is twice the number of holes for lubricating rods 12;

- channel for the passage of the rotation profile 9 - designed for unobstructed movement of the pusher 6 along the holes 12, allow the rotation profile 14 to pass along the holes 12;

- channels for the passage of the grip 10 - designed for unhindered movement of the pusher 6 along the holes 12, allow the grips 13 to pass along the holes 12;

- ratchet wheel 11 - is placed on the drum 1, designed to rotate and fix the drum in the specified positions of work, the number of petals of the ratchet wheel is twice the number of holes for the rods 12;

- holes for greasing rods 12 - greasing rods are placed in the holes.

Locking grooves 8 are located around the circumference of the outer surface of the drum 1. Each groove 8 has a flat wall in the direction of movement of the drum to slide and a straight wall in the opposite direction to prevent rotation. In the drum 1 there are holes 12 for lubricating rods, holes 12 are provided with channels 9, 10. The channels are designed for unimpeded movement of the pusher 6 along the hole 12. The number of holes 12 is half the number of locking grooves 8 and half the number of petals of the ratchet wheel 11. The ratchet wheel 11 is located at the end of the drum 1. The elastic obturator 7 is fixed in the hole 12, the obturator 7 can also be fixed on the body 2.

On FIG. 3 shows the rod pusher 6. The push rod has grips 13 and a switching profile 2. The grips 13 are made of an elastic material, which makes it possible to grip the rod when it is advanced onto the wheel flange.

The switching profile 14 is made in the form of a U-shaped protrusion. Being in a hook with the ratchet wheel rod, the profile raises the rod 5 when it moves forward and backward.

On FIG. 4 shows the ratchet wheel link 5. The link has a retracted link leg 15 for hooking with the switching profile 14 of the rod pusher and a hook leg 16 for fixing on the ratchet wheel 11. The link arm 15 is made with a side outlet, which allows it to interact with the switching profile of the pusher 14. The paw of the hook 16 interacts with the profile of the ratchet wheel 11, fixing the movements of the drum 1 with a hook on the petals of the ratchet wheel 11. The rod is fixed in the body so that it can move up and down, rotate around the attachment axis. The rod is spring-loaded on the body by a return device 17 for setting it to its original position and hooking with the next petal of the ratchet wheel 11 with the paw of the hook 16.

The device works as follows.

Solid lubricating rods are placed in the drum 1, the rod is fed by means of a drive device 4. With the help of a driving device 4, the lubricating rod can only be dosed when necessary. The removal of the rod from the wheel flange is carried out using the rod pusher 6, which has grips 13. The supply of lubricating rods to the ridges is mainly carried out at a given frequency and when the rail vehicle enters a turn.

In the open part, the rubber seal 7 prevents the rod from falling out to the wheel flange. At the beginning of operation, the drive device 4 begins to move the pusher 6. The pusher 6 enters the hole of the drum 12 and, using the grips 13, fixes the lubricating rod and feeds it to the wheel flange, overcoming the resistance of the obturator 7.

When the rod ends, the pusher leaves the drum 1 and releases the remnants of the lubricating rod. The driving device 4 starts moving in the opposite direction.

The operation of the device is described by the following steps:

1. Working stroke

The drive device 4 together with the pusher 6 overcome the resistance of the obturator 7 and feed the lubricating rod to the wheel flange.

2. Greasing rod has run out.

The drive device 4 starts to pull the pusher 6 out of the hole 12 in the drum 1.

3. The first rotation of the drum.

The drive device 4 continues to move back together with the pusher 6. The switching profile 14 of the pusher 6 engages with the thrust paw 5 and pulls it up. With the help of the paw of the hook of the ratchet wheel 16, the drum 1 rotates. In this case, the stopper of the drum 3 enters the next locking groove 8 of the drum 1.

4. Fixation in an intermediate position.

The drive device 4 continues to move back together with the pusher 6 and releases the thrust paw 5 and, due to the profile of the ratchet wheel 11 and the return device 17, moves to the next hook. The stopper 3 due to the straight wall does not allow the drum 1 to rotate in the opposite direction.

5. The second rotation of the drum.

The drive device 4 together with the pusher 6 starts to move forward. Paw thrust 15 of the ratchet wheel 11 engages with the profile of the pusher 14 and pulls it up. With the help of the paw of the hook 16 of the ratchet wheel 11, the drum 1 rotates. In this case, the stopper of the drum 3 enters the next locking groove 8 of the drum 1.

6. Fixation in working position.

The drive device 4, together with the pusher 6, continues to move forward and releases the thrust paw 5 and, due to the profile of the ratchet wheel 11, moves to the next hook. The stopper 3 due to the straight wall of the locking groove 8 does not allow the drum 1 to rotate in the opposite direction. The pusher grips 6 enter the channels of the drum 12 and fix the lubricating rod.

7. Working stroke.

The drive device 4 together with the pusher 6 overcome the resistance of the obturator 7 and feed the lubricating rod to the wheel flange.

Due to the fact that the lubricating rod is fixed by the grips of the pusher 13, if necessary, using the drive device 4, the lubricating rod can be removed from the wheel flange, thereby ensuring control of the supply of the lubricating rod.

Claims (13)

1. A drum comb lubricator containing a housing and a drive mechanism, characterized in that the lubricating rods are placed inside the drum located inside the housing, and the drive device is equipped with a pusher, while the drum is equipped with a ratchet wheel, and the ratchet wheel rod is fixed inside the housing. 2. Drum comb lubricator according to claim 1, characterized in that the drive mechanism is configured to dose the lubricating rod. 3. Drum comb lubricator according to claim 1, characterized in that the drum is additionally provided with locking grooves located around the circumference. 4. Drum comb lubricator according to claim 1, characterized in that a drum stopper is fixed in the housing, adapted to fix the drum in intermediate positions using locking grooves. 5. Drum comb lubricator according to claim 1, characterized in that the drum is equipped with elastic obturators adapted to fix the lubricating rods. 6. Drum comb lubricator according to claim 1, characterized in that the pusher is made with a switching profile and elastic grips. 7. Drum comb lubricator according to claim 1, characterized in that the ratchet wheel link is made with a retracted link arm adapted for hooking with a pusher switching profile, and a hook leg adapted for hooking with the ratchet wheel petals. 8. Drum comb lubricator according to claim 1, characterized in that the ratchet wheel rod is equipped with a return device. 9. Drum comb lubricator according to claim 1, characterized in that the number of petals of the ratchet wheel of the drum is twice the number of holes for the lubricating rods. 10. Drum comb lubricator according to claim 1, characterized in that the holes for the lubricating rods are made with channels for the passage of elastic grippers and the pusher switching profile. 11. Drum comb lubricator according to claim 3, characterized in that the number of locking grooves in the drum is twice the number of holes for the lubricating rods. 12. Drum comb lubricator according to claim 3, characterized in that the locking grooves have a flat wall in the direction of rotation of the drum and a straight wall in the opposite direction. 13. Drum comb lubricator according to claim 4, characterized in that the drum stopper is equipped with a return device.

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