Device for cold pressing axle box of railway wheel pair

FIELD: mechanical engineering.

SUBSTANCE: device comprises the mechanism for locking pressed parts made of an extensible sleeve. The first power hydraulic cylinder is used for moving parts and can rotate between two vertical unmovable pillars. The pillars are pivotally connected in pair with movable vertical pillars through the top and bottom horizontal clamps. The extensible spring-loaded stop with the drive and the first hydraulic cylinder are axially aligned. The first power hydraulic cylinder receives the second power hydraulic cylinder whose rod is provided with first center and spring. One end of the spring co-operates with the piston, and other end of the spring co-operates with the face of the extensible sleeve. The extensible stop receives the second center with the stack of plate springs that is coaxial to the first center. The bottom clams are provided with a lifting-rotating device.

EFFECT: reduced labor consumption for making and simplified structure.

1 cl, 2 dwg

 

The invention relates to the field of engineering, in particular to equipment for ease of Assembly of metal nodes, for example for mounting on the axle of the wheelset (CP) railway carriage bushing or bearing rings.

There are various designs of installations is press-various bushings and rings on the axis. For example, a device for implementing the method of forming wheelset rolling stock (see A.S. USSR №1344568, IPC723 P 19/02, publ. 15.10.1987), comprising a housing, a locking mechanism napressovyvanie parts, made in the form of a retractable spring-loaded Cup, the actuator is moved in the form of a hydraulic cylinder, two brackets, a mechanism for centering the axis of the wheelset as mounted in the bearing sleeves of the centering rods with plungers at the ends.

With this setup, you can press cold nodes railway wheelsets. However, the use of such a facility because of its structural features leads to high costs in time and, consequently, to an increase in costs.

The closest solution to the claimed combination of essential features and the achieved technical result from the use of is installation design for Assembly cold press-on site train wheel pair on the patent of the Russian Federation No. 2155659, 61 C5/00, 23 P 19/027, publ. 09.10.2000.

According to this invention, the apparatus comprises a housing in the form of a spatial frame of vertical columns and horizontal beams, the locking mechanism napressovyvanie details in the form of a retractable spring loaded glass retainer, drive, move it in the form of a hydraulic cylinder, a sliding stop with the drive of its longitudinal movement, two pairs of gripping actuators for hanging a pair of wheels coaxially with the locking mechanism napressovyvanie details.

However, the known device does not provide the necessary alignment of the pair of wheels with locking mechanism napressovyvanie details.

The problem to which the invention is directed, is the establishment of cold apresski providing the desired alignment of the pair of wheels and mechanisms of fixation napressovyvanie details during apresski under the condition of reducing the complexity of the manufacturing process of this installation by simplifying the structure.

The problem is solved with a technical result from the installation of a cold apresski axle hub of railway wheelsets. In this setting enabled the locking mechanism parts designed press-axle railway wheelsets. The locking mechanism is made in the form of a sliding glass actuator displacement is possible repressively parts in the form of the first power cylinder, installed with the possibility of rotation between the two vertical stationary racks. Each of the stationary uprights are connected by upper and lower horizontal tie-rods hinged to the respective movable vertical stand with the formation of a common spatial frame. Between the vertical movable racks coaxially with the first cylinder has a retractable spring-loaded stop with the drive of its longitudinal movement. Inside the first power cylinder has a second power cylinder, the rod of which is fixed the first center, and a spring, one end of which communicates with the piston, and the other end with the end of the retractable Cup. Coaxially to the first center in retractable spring loaded Assembly has a second center, based on the package of Cup springs, and lower couplers installed tilt-unit (PPU), including a mechanism to support a pair of wheels, as well as mechanisms for lifting and turning.

To reduce the radial load on the power cylinders during operation of the installation in the support mechanism of the pair of wheels polyurethane foam has an unloading device in the form of packets Belleville springs, located on the prisms and compressed under the weight prescribed in these prisms wheelset with in the initial position a level below the level of the centers for installation.

The claimed invention is confirmed by the device in detail, illustrated by drawings, in which

- figure 1 shows a General view of the proposed facility showing the operating positions of the mechanisms in the initial position;

- figure 2 shows a section a-a of the proposed installation.

The proposed installation of cold apresski-axle railway wheelset includes a housing made in the form of a common spatial frame: two vertical stationary racks 1, two vertical movable racks 2, are pairwise connected by a hinge to the upper 3 and lower 4 ties. Between two vertical stationary racks 1 set the locking mechanism repressively parts, made in the form of retractable Cup 5, the actuator moving it in the form of the first power cylinder, inside of which is coaxial to the first set of the second power cylinder 7, the piston rod which is fixedly mounted the first center 8. On movable racks 2 has a retractable stop 9, which interacts with the spring 10. Inside retractable stop 9 coaxially to the first center 8 has a spring-loaded second center 11. On the lower tie-rods 4 are installed foam with unloading device.

The first power cylinder 6 mounted to rotate on the trunnions 12, secured to the uprights 1. Drive rotation of the first power hydrocerin the RA 6 on the pins 12 is a cylinder of rotation 13, mounted on the rack 1, the piston 14 which is installed rail 15, which interacts with a toothed wheel 16, mounted on the trunnion 12. The second power cylinder 7 unilateral action, reversal which occurs under the action of the spring 17, one end of which rests on the second piston of the power cylinder 7, and the other end on the end of the retractable Cup 5, which cooperates with a projecting part with an end face of the ring 18, pivoted on the rod 19 of the first power cylinder 6. Retractable spring-loaded stop 9 has a drive of its longitudinal movement, made in the form of wedge pusher 20, pivotally connected with the piston rod of the hydraulic cylinder 21, the body of which is connected pivotally with the stand 2. The second center 11 movably mounted in the tappet 9 and the spring-loaded package of Cup springs 22. The original position of the center 11 is fixed by a cover 23.

The foam includes a housing 24, is installed on the rotary plate 25, the guides 26 which are moved in the vertical plane of the rolling pin 27 connected with the beam 28, the rise of which is carried out by means of a balloon pneumatic cylinder 29, is made in the form of a rubber balloon, blown by filing the inside of the cylinder of compressed air. Rotation in the horizontal plane of the plate 25 to 180° is carried out on the rotary cylinder 30, the body of which USTC is connected with the housing foam 24, and the rotary part with the plate 25. At the ends of the beams 28 adjustably mounted prism 31 with packages Belleville springs 32, the role of the discharge device when the operation force which is in a compressed state is equal to 0.8 times the weight KP 33 installed in the prisms 31 and having in the initial position a level below the level of the center line of the installation.

The unit is mounted in the chain of technological ways with the rails 34 and pass (not shown) in the center of the installation, where the fixed gearbox 33. Managing the installation and skip is performed with the remote system

Operation of the proposed facility cold press-axle railway wheelset is as follows.

In the initial position, before you begin to skip technological path in the installation center on the rails 34 is served KP 33. At this time, the first power cylinder 6 is deployed in the loading position, providing easy access to service personnel for installation and fixing of the sliding glass 5 repressively axlebox details of the node.

After completing the installation operation parts-axle-site by the operator in the automatic cycle of the control system is the rotation of the cylinder 6 on the pins 12 by means of a hydraulic cylinder 13, the slats 15 and the toothed wheel 16 in the original p is the position (horizontal). Then the foam with the help of a balloon pneumatic cylinder 29 raises KP 33 to its original position press. Prism 31 mounted on the beam 28, provide the combination of the axis KP 33 with the axis passing through the first 8 and second 11 installation center, in the initial position of the axis KP 33 is located below the axis of the centres within the possibility of an overlap (contact) conical surface centers 8 and 11 with the tapered surface of the center hole axis KP 33. Included with the cylinder 21 and the second power cylinder 7. The cylinder 21 through the wedge pusher 20 puts emphasis 9, compressing the spring 10. Set in the stop 9 center 11 enters the center hole axis KP 33. The second power cylinder 7 moves the associated center 8, compressing the spring 17. Center 8 enters the center hole KP 33, and then, moving on, centers KP 33, moving it towards the center 11, simultaneously lifting her. Moving KP up under the action centers 8 and 11 assists in unloading device placed in the foam, in the form of a package of plate springs 32, initially compressed by the weight of the gearbox. This package Belleville springs 22, which is spring-loaded second center 11, is designed to initially provide centering KP, and only then under the action of the power cylinder 7 is compressed. As a result, the center 11 plumage is asaeda inside the stop 9 and the end face axis KP 33 tightened to the end of the stop 9. The signal thus supplied to the control system (in the drawing, the sensors that can detect the position of the working bodies of the installation and KP, as well as the process of apresski not shown).

After that, turn the first power cylinder 6, the piston rod 19 which together with a hinge mounted on the ring 18 is moved forward. Together with him, moves the Cup 5 under the action of the spring 17 until, until the end of the Cup 5 will not run into the end of the axis KP 33 and will not stop, after which the piston rod 19, acting through the ring 18 on the details of the axlebox node (labyrinth ring, inner ring bearings), shifts them with a glass and zapressovyvat axle gearbox 33. After completion of the process apresski cylinder 6 is returned to its original position and the ring 18 after escaping from the axis KP returns the Cup 5 in the initial position, compressing the spring 17. Another team from the piston cavity of a cylinder 7 is reset pressure, then the piston rod of the hydraulic cylinder 7 together with 8 under the action of the spring 17 returns to its original position. Simultaneously, the hydraulic cylinder 21 moves the wedge 20 down, allowing the stop 9 to return under the action of the spring 10 to its original position together with the installed center 11, which under the force of the Belleville springs 22 is also returned to its original position.

KP release is given from the centers of 8 and 11 and lies in prism 31 of the beam 28 PUF, jamming own weight package Belleville springs 32 of the discharge device. After that, the operator first power cylinder 6 takes place in the loading area, and the foam under the action of the rotary cylinder 30 rotates KP 180° and the process of apresski parts axlebox node is repeated on the second end of the axis.

After apresski parts-axle-site at both ends of the axis of the foam down at the command of the operator KP 33 track 34 at the expense of the pneumatic cylinder 29.

The use of the proposed setup allows to improve the accuracy of centering of the KP, as well as to significantly reduce the complexity of the manufacturing installation by simplifying the proposed design.

1. The installation of cold apresski axle-site train wheel pair, containing the locking mechanism repressively parts, made in the form of a sliding sleeve from the drive motion repressively parts in the form of the first power cylinder mounted to rotate between two fixed vertical posts connected by pairs of upper and lower horizontal tie-rods articulated with movable vertical posts between which coaxially with the first cylinder has a retractable spring-loaded stop with the drive it was moved, characterized in that inside the first power g is drollinger a second power cylinder, on the rod which is fixed the first center, and the spring with the opportunity to interact one end with the piston and a second end with the end of the sliding glass, retractable spring loaded fence aligned with the first center has a second center, based on the package of Cup springs, and lower couplers installed tilt-up device that includes a mechanism to support a pair of wheels, as well as mechanisms for lifting and turning.

2. Installation according to claim 1, characterized in that the support mechanism of the pair of wheels tilt-up device includes an unloading device in the form of packets Belleville springs, located on the prisms and compressed under the weight prescribed in these prisms wheelset with in the initial position a level below the level of the center line of the installation.



 

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