Device for pressing bearings on wheel pair

 

(57) Abstract:

The invention relates to a mechanical Assembly production. On the basis of the installed two tables that have zapressovki, each of which is made in the form of a hydraulic cylinder with a spring-loaded center of the restraint system bearing device and moving it in the form of a rod of the hydraulic cylinder. The cylinders of zapressovkoj are directed towards one another. Between the tables is the site of installation of the pair of wheels in the form of a rail managed pedal stops. Between the rails installed telescopic hydraulic cylinders lift wheel pair. The cylinder of each zapressovka also made telescopic with extra stock, on one end of which is equipped with a restraint system bearing, and the other fixed stop to limit the movement of the rod. Each telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod. The result is a simplification of the design of the facility, reducing its size, improving Assembly performance, as well as the accuracy and quality of collected products. 1 C.p. f-crystals, 5 Il.

A device for mounting bearings on a pair of wheels of railway carriages, containing mounted on the stand base with the pressing mechanism in the form of a cylinder placed on the end of his shaft pressing element, the node setup wheel axis located between the racks and the cooling unit inner rings (SU 1140926 And 23.02.1985, B 23 P 11/02).

The disadvantages of the known devices is the complexity of the design due to the presence of bulky feed system coolant to the bearing ring, and the low productivity of the Assembly and the inconvenience of operation due to contamination of the workplace and collect node with excess oil for cooling.

Closest to the invention is a device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the remote control device control zapressovka the device and moving it in the form of a rod of the hydraulic cylinder, while the cylinders of zapressovkoj are directed towards one another (US 3916499, 04.11.1975, B 23 P 19/02).

The disadvantage is the impossibility of providing a separate supply of rod-pinola each cylinder at different speeds and pressing forces, as well as alignment of product surfaces, resulting in reduced performance of the Assembly.

Technical problem which the claimed invention is directed, is to simplify the design of the facility, reducing its size, improving Assembly performance, as well as the accuracy and quality of collected products in alternate rolling bearings on a pair of wheels.

The problem is solved due to the fact that in the known device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the control device controls operation of zapressovkoj, each of which is made in the form of a hydraulic cylinder with a spring-loaded center device withheld is Evsikov are directed towards one another, according to the invention the hydraulic cylinder of each zapressovka made telescopic with additional rod, one end of which is mounted restraint system bearing, and the other fixed stop to limit the movement of the rod, the node setup wheelset made in the form of rail managed pedal stops, the lift cylinders of the pair of wheels made telescopic and located between the said rails, and pedestals fixed in the vertical plane.

Each telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod.

In Fig.1 shows a General view of the installation for pressing bearings on wheel pairs:

in Fig.2 - the same, top view;

in Fig.3 - section a-a in Fig.1;

in Fig.4 - cut cylinder of zapressovka;

in Fig.5 - section cylinder lift.

Installation for mounting bearings on a pair of wheels comprises a base 1 with two symmetrically arranged on the sides of tables 2 and installed zapressovkoj 3, each of which is made in the form of a hydraulic cylinder 4 with the spring loaded center stake 7 cylinders 4 are directed towards one another. Between the tables is the site of installation of the pair of wheels 8. In addition, the unit is equipped with lift 9 of the pair of wheels 8, are made in the form of two hydraulic cylinders 10 and 11 remote control device to control the work of zapressovkoj 3. Tables 2 fixed in the vertical plane, the node setup wheel, a pair of 8 made in the form of the rail 12 with the lugs 13 controlled by the pedal 14. The hydraulic cylinder 4 zapreshaushee made telescopic with additional rod 15, one end of which is mounted a holding device bearing 6, and the other fixed stop 16, limiting the movement of the rod 15. The cylinders 10 lift 9 is located between the rail 12 and is made telescopic.

The area of the piston 17 of the outer rod 18 of the cylinder 10 lift 9 two and a half times the area of the piston 19 of the inner plunger 20.

The plant is equipped with the hydraulic power unit 21, which is located behind the left Cabinet 2 and includes a tank with a pumping unit, the control and regulation and distribution equipment, devices for filtering and cooling oil. Station 21 is connected with the hydraulic cylinders 4, 10 zapressovkoj 3 and 9 lifts pipelines (not shown). The us is by infrared 23 for installation of the bearing 6, the Cabinet 24.

Device for pressing bearings on wheel pair is as follows.

Before pressing, make adjustment valve (not shown) on the pressure corresponding requirements to the force of compression injected type bearings 6, since there is a direct relationship between pressure and force fitting. This involves moving one of zapressovkoj 3 mode "pressing" and a pressure gauge 22 on zapressovke 3 is controlled by the preset pressure at the time when the compression. After the setting of the valve is performed an additional check on the relevant readings of the manometer 22 second zapressovka 3.

Before beginning work, all devices must be in the original position, namely, the rods 7 and 15 of the hydraulic cylinders 4 zapressovkoj drawn 3, and table 23 withdrawn; the cylinders 10 lift 9 is omitted; the lugs 13 of the wheels, the pedal 14 is omitted.

Further work is performed in the following order. Extends table 23 mounted on it bearing 6. Approaching the bearing 6 on the secondary shaft 15 of the hydraulic cylinder 4 is fully inserted in the stem 8 of the device move. Table 23 is rolled up pair of wheels 8, set on the line of the Elevator 9 and the pedal 14 is fixed lugs 13 in this position. The cylinders 10 lift 9 raise wheel pair 8 to a height of centers 5. The cylinders 10 lift 9 are mounted external to the rod 18 and the inner plunger 20. External rod 18 is designed for lifting the pair of wheels 8, the inner plunger 20 to its posting (discharge) after lifting. The rise happens to force together the outer shaft 18 and the inner plunger 20. Due to the differential areas of the piston 17 of the rod 18 and piston 19 of the plunger 20 when the emphasis of the external rod 18 on the wheel pair 8 is valid only force the inner plunger 20, unloading 5 and additional rods 15.

Additional rods 15 of both of the cylinders 4 zapressovkoj 3 make your move to the stop 16, and a pair of wheels 8 is installed in the centers 5. Spring centers 5 tend to raise the wheel pair 8 on the line of centers 5 and the plunger 20 helps them, and removed from the centers of the 5 major part of the radial load, reducing the deflection of additional shocks 15.

Included stroke device movements of the bearing 6, that is, the rod 7 of the hydraulic cylinder 4 one of zapressovkoj 3 and the corresponding axlebox bearing 6 zapressovyvajutsja is on the way. Then the rod 7 is given in position before pressing includes the stroke of the second piston rod 7 other zapressovka 3 and zapressovyvajutsja on the axis of the pair of wheels 8, the bearing 6 on the opposite side. Next is given the rod 7 to the original position, and the rod 15 together with the centers 5. Lift 9 omits wheel pair 8 on the rails 12, the pedal 14 is lowered, the stop 13, and a pair of wheels 8 out of installation. Further operations are repeated.

1. Device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the control device controls operation of zapressovkoj, each of which is made in the form of a hydraulic cylinder with a spring-loaded center of the restraint system bearing device and moving it in the form of a rod of the hydraulic cylinder, and the cylinders of zapressovkoj are directed towards one another, characterized in that the hydraulic cylinder of each zapressovka made telescopic with extra stock, on one end of which is mounted the device UD made in the form of rail managed pedal stops the lift cylinders of the pair of wheels made telescopic and located between the said rails, and pedestals fixed in the vertical plane.

2. Installation under item 1, characterized in that each of the telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod.

 

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