Installation for assembly cold press-fitting the hub of railway wheelsets

 

(57) Abstract:

The invention relates to mechanical engineering and can be used when installing the axis of the pair of wheels of a railroad car bushing or bearing rings. The housing mounted locking mechanism napressovyvanie parts, drive her move and two brackets that are attached two pairs of hooks for hanging a pair of wheels with locking mechanism and actuator. The case represents the first and second vertical movable rack and the first and second vertical stationary rack, pairwise interconnected lateral longitudinal bars and lateral ties with the formation of a common spatial frame. The first and second stationary and movable vertical posts secured respectively to the first, second, third and fourth pins. The drive movement is a first hydraulic cylinder mounted in the first and second pins can be rotated from a drive in the form of the second cylinder. On the last fixed piston rod, cooperating with a toothed wheel mounted on the first axle. On the rod of the first hydraulic cylinder has a thrust collar with a spherical surface mating with the mounted retractable stop with the drive its longitudinal movement in the form of a wedge pusher. On the rod of the first hydraulic cylinder has a retractable spring-loaded glass. The result is improved efficiency of work on the manufacture or repair of railway wheelsets. 3 C.p. f-crystals, 8 ill.

The invention relates to the field of engineering, and more particularly to accessories for ease of Assembly of metal nodes, for example, for mounting on the axle of the pair of wheels of a railroad car bushing or bearing rings.

There are various designs of installations is press-various bushings and rings on the axis.

Known, for example, setting to build hot press-fitting of the labyrinth ring and the inner ring cylindrical bearing axle of a railway wheelset (see kN. A. A. Amelina the Device and repair of wagon axle box roller bearings), Transport, 1975, page 239...253), comprising a housing, a locking mechanism napressovyvanie parts, drive it and move the heater or induction type, or made in the form of an oil bath.

Using such plants produce separate press the right rings on the axle of the wheelset with a mandatory cooling the resulting Assembly.

The natural is carried out by specially equipped premises ("hot " shops") for such environmentally unfriendly production, which greatly increases the cost of production and the conditions of work of the staff is far from comfortable.

The closest solution to the claimed technical essence and the achieved result from its use is the design of the known installation for assembling cold press-on site train wheel pair on and.with. USSR N 1344568, 15.10.1987, B 23 P 19/02, comprising a housing, a locking mechanism napressovyvanie parts, made in the form of a retractable spring-loaded Cup, the actuator is moved in a first cylinder and two brackets.

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 task, which is aimed by the invention, is to increase the efficiency of works for the manufacture or repair of railway wheelsets.

This task is solved with a technical result from the use of the claimed invention to improve productivity in the manufacture or R is and the parts and components manufactured or repaired wheel pair.

This result is achieved in that known device for Assembly cold press-on site train wheel pair, comprising a housing, a locking mechanism napressovyvanie parts, made in the form of a retractable spring-loaded Cup, the actuator is moved in a first cylinder and two bracket is further provided with mounted coaxially to the first hydraulic cylinder retractable focus with a drive of its longitudinal movement and fixed to the brackets with two pairs of hooks for hanging a pair of wheels coaxially with the first cylinder and a sliding stop, equipped with actuators move. Thus the case is made in the form of first and second vertical moving of the goalposts and the first and second vertical stationary racks, pairwise interconnected outside the two upper and two lower lateral longitudinal stripes, and the inside - two upper and two lower transverse tie-rods, pivotally connected with the upright supports and the longitudinal strips with education together with them a single spatial frame, and first and second fixed vertical posts, and the first and second movable upright support provided attached to them according to the second pins of the stationary uprights can be rotated and provided with a drive rotation, made in the form mounted on the first fixed vertical post of the second hydraulic cylinder mounted on the piston rod and the gear mounted on the first axle, the rod of the first hydraulic cylinder is made with a thrust collar having a spherical surface, and is provided with a compensating washer with a spherical surface mating with said spherical surface of collar, retractable stop is mounted on the third and fourth pins of the movable uprights, and drive its longitudinal movement is made in the form of a wedge pusher, kinematically connected to the third hydraulic cylinder mounted on the first movable vertical rack, retractable spring-loaded Cup is installed on the rod of the first hydraulic cylinder, the brackets are located on the two upper cross braces, and drive each pair of grips made in the form of a hydraulic cylinder, a rod which is kinematically connected through a lever system with captures this couple.

In addition, to enhance the technological capabilities of the installation of the first hydraulic cylinder must be provided with transitional glass wall which in longitudinal section, has a shape, set the coaxial vydejnou it outside and having two variants.

In the first embodiment to provide for joint apresski axle wheelset labyrinth ring with an inner ring of the bearing glass transition is made with a Central hole with a diameter greater than the outer diameter of the retractable spring-loaded Cup.

In the second embodiment, to provide separate apresski labyrinth ring without inner ring bearing glass transition is made with a Central hole of diameter equal to the outside diameter of the retractable spring-loaded Cup.

Introduction to the design of the installation of additional mechanisms, as well as special execution and careful placement of existing and additional mechanisms can significantly reduce costs and improve the performance of the manufacturing and repair of railway wheelsets.

The invention is illustrated by drawings, in which:

- Fig. 1 shows a General view in the context of the proposed facility showing the operating positions of the mechanisms installed in the original position;

- Fig. 2 shows a cross-section of the proposed installation by G-D to display the schema installation of retractable stops;

in Fig. 3 shows part of the General type proposed in which, preparatory operations dressing rings or housing axle boxes with rings on the glass cylinder;

- Fig. 4 shows a cross-section of the proposed facility along a-a to display the design capture for posting wheelset:

- Fig. 5 shows a cross-section of the proposed installation on b-B show the schematic setup of the first cylinder and the actuator rotation:

- Fig. 6 shows in section a portion of the first hydraulic cylinder to show the first option apresski labyrinth ring simultaneously with the press-fitting the inner ring of the bearing;

- Fig. 7 shows in section a portion of the first hydraulic cylinder to show the second variant of apresski labyrinth ring without apresski the inner bearing ring;

- Fig. 8 shows a view in plan of the inventive installation.

We offer installation for Assembly cold press-fitting the hub of railway wheelset includes a housing 1, a locking mechanism repressively details: labyrinth ring 2, the inner ring 3 of the bearing or axle box housing 4 made in the form of a retractable spring-loaded Cup 5, is secured in position with screw clamp 6 on the shaft 7 of the first (main) cylinder 8 - drive movement napressovyvanie parts 2, 3, or 4.

Case 1 Arno interconnected outside the two top 13, 14 and two lower lateral longitudinal strips 15, 16, and inside two top 17, 18 and two lower 19, 20 transverse tie-rods, pivotally fastened to supports 9, 10, 11, 12 and bars 13, 14, 15, 16 (which allows you to avoid in the process of installation of occurrence of a dangerous bending moments in places mates uprights and longitudinal strips and constituting together with them a single spatial frame.

The first hydraulic cylinder 8 mounted to rotate on the first 21 and second 22 pins, mounted respectively on the first 11 and second 12 fixed vertical posts, with the stem 7 of the first hydraulic cylinder 8 are thrust collar 23 having a compensating washer 24, coupled to a thrust collar 23 on the sphere (i.e., on the spherical surface 25 of the washer 24 and the spherical surface 26 of the thrust collar 23) to compensate the basic feature of this wheel pair and the first hydraulic cylinder 8, and the first hydraulic cylinder 8 provided with a drive rotation on the first 21 and second 22 Zapf, made in the form of the second hydraulic cylinder 27 mounted on the first fixed vertical post 11, attached to the piston 28 and the rod 29 and the toothed wheel 30 mounted on the first axle 21.

At first Jenny stop 33 with the drive of its longitudinal movement, made in the form of wedge pusher 34, kinematically connected to the third hydraulic cylinder 35 mounted on the lower transverse coupler 19, and the trunnion is installed on the racks in the spherical bearings 36, compensating errors of manufacturing and Assembly housing.

The top two longitudinal strips 13 and 14 (see Fig. 8) there are brackets 37 and 38, on which is mounted two pairs of hooks for hanging manufactured or repaired pair of wheels 41, each pair has two gripper 39 and 40 with a drive of their opening and closing, in the form of hydraulic cylinder 42, the piston rod 43 which is kinematically connected through a lever system 44 with the grippers 39 and 40.

To expand the technological capabilities of the installation of the first hydraulic cylinder 8 shall be fitted with a glass transition 45 (see Fig. 6 - I variant) or 46 (see Fig. 7 - II variant) with the wall, made in the section - shaped, mounted coaxially sliding podpruzhinennom Cup 5 with its outer side in place of the original installation napressovyvanie part(s) 2 and/or 3, 4, covering her (them) on the outside.

In the first embodiment, to provide for joint apresski on the axis 47 of the pair of wheels 41 Labirinto, exceeding the outer diameter of the sliding tumbler 5 of the first cylinder 8.

In the second embodiment, to provide separate apresski labyrinth ring 2 without inner ring 3 of the bearing in the transition glass 46 is made the Central hole d with diameter equal to the outside diameter of the retractable spring-loaded tumbler 5 of the first cylinder 8.

The operation of the installation is carried out using the remote control (not shown) on the basis of the evidence of the position sensors of various parts and mechanisms of the installation (for example, the sensor 48 shown in Fig. 1, controls the position of the swivel retractable stops 33 and allows to determine the moment of his contact with the axis 47 of the pair of wheels 41 of any length).

The unit is mounted in the chain of technological ways with rails 49 (see Fig. 8) and may be supplemented by lifting and turning device (not shown), enabling rotation of the pair of wheels for pressing the rings on both sides of the axis.

Installation of the housing 1 on the movable support 50 (see Fig. 1) and a fixed support 51 avoids the application of bending moments to the foundations when the application's main workload (efforts of zapressovany as follows.

stage 1. Original position.

In the initial position before working on the position "E" apresski (see Fig. 4) in the center of the zone of location of installation for cold apresski on rails 49, for example, the process flow path line is a pair of wheels 41.

At this time, the first hydraulic cylinder 8 is deployed on the first 21 and second 22 pivots outward position (see Fig. 3), providing easy access to service personnel for installation of parts, designed press on the axis 47 of the pair of wheels 41.

At the same time, the grippers 39 and 40 (see Fig. 4) deployed (raised) in position "W" in the open position, and the rotary sliding spring stop 33 (see Fig. 1) is pushed to the extreme left of its original position.

Step 2. The press-fitting.

Option 2.1. Joint press labyrinth ring together with the inner ring of the bearing and the axle box housing.

2.1.1. The preparatory operation.

Before apresski on retractable spring-loaded tumbler 5 of the first cylinder 8, which is at most flush to the inside of the first cylinder 8 (and fixed relative to the rod 7 of the hydraulic cylinder 8 through vixtoria, labyrinth ring 2 and put on them the axle box housing 4.

2.1.2. The main work operation.

After completion of the preparatory operation of the first hydraulic cylinder 8 through the drive rotation of the second cylinder 27, Reiki 29 and gear 30) on command from a remote control (not shown) rotates counterclockwise (see Fig. 1) around the first 21 and second 22 Zapf, setting the first hydraulic cylinder 8 in a horizontal position.

Then the grippers 39 and 40 by means of a hydraulic cylinder 42 and lever system 44 deploy downward, closing the grippers 39 and 40 around the axis 47 of the pair of wheels 41. After that, the same hydraulic cylinder 42 of the wheel pair 41 raise (hung) and fixed in position apresski almost coaxially with the first cylinder 8 and a sliding spring stop 33 (see Fig. 1).

After that the next command from the remote control (not shown) includes a third hydraulic cylinder 35 and by a wedge pusher 34 push spring stop 33 to its contact with the butt-end of the axis 47 of the pair of wheels 41. Signal using the sensor 48 is supplied to the control unit (not shown). Next, remove the retainer 6, and then under the action of the spring 52 sliding on redlagaemaya installation design allows you to achieve alignment within 0,3...0,5 mm for wheel pairs of known types diameters, the axes 41.

After enabling the first hydraulic cylinder 8, the piston rod 7 will begin to move, his thrust collar 23 through a compensating washer 24 (automatically compensating adjust to any misalignment of the real misalignment of the first hydraulic cylinder 8 and the axis 47 of the pair of wheels 41 using a spherical surface 26 of the thrust collar 23, the rod 7 and the response of the spherical surface 25 compensating washers 24) acting on the parts 2, 3 and 4, sliding them with a retractable spring-loaded Cup 5 and push on the axis 47 of the pair of wheels 41 until it stops.

After apresski all cylinders 8, 27, 35, 42 are switched to reverse and all mechanisms installed back in its original position, and a pair of wheels 41 is pressed to the axis 47 parts 2, 3 and 4 is lowered onto the rails 49, raspoliruyte from the grippers 39 and 40 and is sent to the next process position or to the warehouse.

Unit is ready for the next production cycle.

Version 2.2. Joint press labyrinth ring together with the inner rings of the bearing, but separately from the chassis pan.

2.2.1. The preparatory operation.

Before apresski on retractable spring Cup 5 Pnom relative to the shaft 7 of the first hydraulic cylinder 8 with the release 6) position alternately wear (completed) planned to press-details - labyrinth ring 2, the inner ring 3 of the bearing, a glass transition 45 (see Fig. 6). At this time, the axle box housing 4 is going to another technological position.

2.2.2. The main work operation.

Repeats the main work operation on p. 2.1.2.

Option 3. Separate the press-fitting of the labyrinth ring and the inner rings of the bearing without casing overlays.

2.3.1. The preparatory operation.

Before apresski on retractable spring-loaded tumbler 5 of the first cylinder 8, which is at most flush to the inside of the first cylinder 8 (and fixed relative to the shaft 7 of the first hydraulic cylinder 8 with the release 6) position put on intended for press-fitting item - labyrinth ring 2 and the glass transition 46 (see Fig. 7).

2.3.2. The main work operation.

Repeats the main work operation on p. 2.1.2.

After this installation is presented in its original position. On retractable spring-loaded tumbler 5 of the first cylinder 8 wear of the inner ring 3 of the bearing and again repeats the main work operation on p. 2.1.2.

The use of the invention allows to:

1. To ensure napra the wheel pairs, regardless of the actual size and type of specific parts of the pair of wheels (axles and wheels).

2. To ensure reliable control, fixation and timely adjustments if necessary working force apresski taking into account any changing real world conditions, depending on a variety of pre-unpredictable factors, including ambient temperature, storage conditions of the original parts, the characteristics of their materials, surface conditions, etc., etc.,) by continuously monitoring the working pressure in the main cylinder.

3. To provide a significant increase in the performance of repairs by eliminating the need to perform various additional preparatory operations (for example, by eliminating unproductive inter-operational movements of the parts in the processing cycle and reduce the time to perform the basic operations (for example, by combining operations apresski several parts of the labyrinth ring and the bearing ring and the housing pan). In addition, the installation of the proposed design can automatically adapt to unexpected changes in the technological cycle.

4. To ensure low cost of repairs due to being the Ala.

5. To improve the working conditions of the staff, to ensure the possibility of automating the process of apresski and to ensure environmental cleanliness in the workplace.

1. Installation for Assembly cold press-on site train wheel pair, comprising a housing, a locking mechanism napressovyvanie parts, made in the form of a retractable spring-loaded Cup, the actuator is moved in a first cylinder and two bracket, characterized in that it is provided mounted coaxially to the first hydraulic cylinder retractable focus with a drive of its longitudinal movement and fixed to the brackets with two pairs of hooks for hanging a pair of wheels coaxially with the first cylinder and a sliding stop, equipped with actuators move, the body is made in the form of first and second vertical moving of the goalposts and the first and second vertical stationary racks, pairwise interconnected outside the two upper and two lower lateral longitudinal stripes, and the inside - two upper and two lower transverse tie-rods, pivotally connected with the upright supports and the longitudinal strips with education together with them a single space frame, the first and vtorye on them, respectively, the first, the second, third and fourth pivots, and the first hydraulic cylinder is installed in the above-mentioned first and second pins fixed uprights can be rotated and provided with a drive rotation, made in the form mounted on the first fixed vertical post of the second hydraulic cylinder mounted on the piston rod and the gear mounted on the first axle, the rod of the first hydraulic cylinder is made with a thrust collar having a spherical surface, and is provided with a compensating washer with a spherical surface mating with said spherical surface of collar, retractable stop is mounted on the third and fourth pins of the movable uprights, and drive its longitudinal movement is made in the form of a wedge pusher, kinematically connected to the third hydraulic cylinder mounted on the first movable vertical rack, retractable spring-loaded Cup is installed on the rod of the first cylinder, the brackets are located on the two upper cross braces, and drive each pair of grips made in the form of a hydraulic cylinder, a rod which is kinematically connected through a lever system with captures this couple.

2. Installation under item 1, characterized in that ustanovlennym coaxial sliding podpruzhinennom glass from its outer side in place of the original installation napressovyvanie details covering her outside.

3. Installation under item 2, characterized in that during the joint press-axle wheelset labyrinth ring and the inner ring of the bearing glass transition is made with a Central hole with a diameter greater than the outer diameter of the retractable spring-loaded Cup.

4. Installation under item 2, wherein when the press-fitting on the axle of the wheelset labyrinth ring without inner ring bearing glass transition is made with a Central hole of diameter equal to the outside diameter of the retractable spring-loaded Cup.

 

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