RU61033U1 - STAND FOR TESTING AND REPAIR OF ABSORBING CARGO CARS - Google Patents

Abstract

Area of use. The utility model relates to the technological equipment of the railway transport enterprises, namely, to the test benches used in the depot and overhaul of freight cars in car depots and at car repair plants.

The essence of the utility model.

To accurately measure the length and stroke of the spring-friction absorbing device, a nozzle for the piston rod of the hydraulic cylinder with at least three plates welded to it located in one plane perpendicular to the axis of the piston rod of the hydraulic cylinder and a plate mounted on the pressure cone of the absorbing device are used. , with at least three touch sensors fixed on it, the ends of which are located in a plane parallel to the plane of the plate. The sensitive elements of the sensors are located in a horizontal plane and are interconnected by the control panel and the controller according to scheme I. The nozzle of the piston rod of the hydraulic cylinder, interacting with the plate, sets the pressure cone of the absorbing device so that the plane of the pressure cone is parallel to the plane of the base of the absorbing device. In this case, the touch sensors give the controller a signal about the horizontalness of the pressure cone and about the position of the zero point of reference of the apparatus and its length. This makes it possible to accurately measure the length of the absorbing apparatus and its stroke. The stand hydraulic station is equipped with two pumps of different capacities and two electric motors. Two pumps provide for the operation of the stand in two modes: during repair and during testing in cyclic mode

loads. When the stand is in repair mode (for disassembling and assembling absorbing devices), an NSh-10-3-L pump with a nominal outlet pressure of 16.2 MPa, a maximum outlet pressure of 21 MPa and a capacity of at least 21 l / min is used. The maximum compression force is 160 tc. When the stand is in test mode, cyclic loading is performed, which involves checking the operability of the absorbing apparatus. The loading force is from 0 to 60 tc, the cycle time is 6 seconds. Up to 10-12 loading cycles are carried out to determine the efficiency of the absorbing apparatus. A type 3102.56-04 pump with a nominal outlet pressure of 20 MPa and a nominal capacity of 79.8 l / min is used. An electric motor of type 4A112M4U3 with a power of 5.5 kW and a rotational speed of 2500 rpm ensures the operation of a pump of the NSh-10-3-L type, and an electric motor of a type 4A200M6U3 with a power of 22 kW and a rotational speed of 1000 rpm provides a pump of type 3102.56-04. The maximum compression force created at the inventive stand 160 tc, which allows testing elastomeric absorbing devices of freight cars. In addition to the program for assembling, disassembling and repairing absorbing devices, the controller is equipped with a program for testing in cyclic loading mode with automatic creation of a load diagram. A stand for testing and repair of absorbing devices of freight cars of the Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW types is bolted to the stand tilter. The stand has a hole in which one of the interchangeable stops is inserted to fix the coupling bolt when the nut is loosened. To test devices of the Sh-6-TO-4 and Sh-6-TO-4U type, the stand is dismantled.

Description

The utility model relates to the technological equipment of the railway transport enterprises, namely, to the test benches used in the depot and overhaul of freight cars in car depots and at car repair plants.

The stand for testing and repair of absorbing devices of freight cars, hereinafter referred to as the stand, is intended:

1) for testing spring-friction absorbing devices of the type Ш-1-ТМ, Ш-2 В, Ш-2-Т, Ш-6-ТО-4, ПМК-110 and elastomeric absorbing devices like АПЭ-95-УВЗ, АПЭ -120-I, 73ZW, namely for:

- determining the length of the devices in the assembled state;

- determination of the initial resistance during compression of the apparatus;

- determining the stroke of the apparatus for a given force;

- tests of spring-friction absorbing devices by the cyclic loading method;

- Comparison of the determined characteristics of the absorbing devices with those regulated by the Instructions for repair and maintenance of the coupler of the rolling stock of the railways of the Russian Federation CV-VNIIZHT-494 of September 16, 1997 with amendments and additions to the Order of the Ministry of Railways of the Russian Federation A-737u of August 16, 2002;

- automatically obtain the load diagram of the absorbing apparatus;

- registration of ongoing tests of devices;

2) for disassembling, assembling and charging said apparatuses in a car depot and at a car repair plant;

3) to check their functional performance before placing on the wagon.

A known bench for testing and repair of absorbing devices of passenger cars (patent RU 48628 U1 G 01 13/00, 61 G 9/00 publ. 10/27/2005, Bull. No. 30), containing a press, which is a welded frame made of sheet steel with two vertical supports, connected by beams at the top and bottom, a movable power element made in the form of a hydraulic cylinder for compressing an absorbing device, a tilter for accommodating an absorbing device, hydraulic cylinder travel and load sensors, a hydraulic station, a control panel and a controller working according to the program laid in it IU. However, it has the following disadvantages:

1. There is no possibility of accurate measurement of the length and stroke of the spring-friction absorbing device with a non-horizontal arrangement of the upper surface of the pressure cone.

2. There is no possibility of testing by cyclic loading.

3. The maximum compression force created at this stand is not enough for testing elastomeric absorbing devices of freight cars.

4. There is no possibility of automatically obtaining the load diagram of the absorbing apparatus.

5. The tilter is not adapted to accommodate absorbing devices of the type Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW due to the design features of these devices.

The purpose of the utility model is to ensure the quality of repair of absorbing vehicles of freight cars, due to the possibility of accurate automated diagnostics of their technical condition, improving the safety of train traffic.

This goal is achieved by applying the following significant distinctive technical solutions:

1. For accurate measurement of the length and stroke of the spring-friction absorbing apparatus used, a nozzle for the piston rod of the hydraulic cylinder,

with at least three plates welded to it, located in one plane perpendicular to the axis of the piston rod of the hydraulic cylinder, and a plate mounted on the pressure cone of the absorbing apparatus, with at least three touch sensors fixed on it, the ends of which are located in a plane parallel to plate plane. The sensitive elements of the sensors are located in a horizontal plane and are interconnected by the control panel and the controller according to scheme I. The nozzle of the piston rod of the hydraulic cylinder, interacting with the plate, sets the pressure cone of the absorbing device so that the plane of the pressure cone is parallel to the plane of the base of the absorbing device. In this case, the touch sensors give the controller a signal about the horizontalness of the pressure cone and about the position of the zero point of reference of the apparatus and its length. This makes it possible to accurately measure the length of the absorbing apparatus and its stroke.

2. The stand hydraulic station is equipped with two pumps of different capacities and two electric motors. Two pumps provide for the operation of the stand in two modes: during repair and during tests in cyclic loading mode. When the stand is in repair mode (for disassembling and assembling absorbing devices), an NSh-10-3-L pump with a nominal outlet pressure of 16.2 MPa, a maximum outlet pressure of 21 MPa and a capacity of at least 21 l / min is used. The maximum compression force is 160 tc. When the stand is in test mode, cyclic loading is performed, which involves checking the operability of the absorbing apparatus. The loading force is from 0 to 60 tc, the cycle time is 6 seconds. Up to 10-12 loading cycles are carried out to determine the efficiency of the absorbing apparatus. A type 3102.56-04 pump with a nominal outlet pressure of 20 MPa and a nominal capacity of 79.8 l / min is used. An electric motor of type 4A112M4U3 with a power of 5.5 kW and a rotational speed of 2500 rpm ensures the operation of a pump of type NSh-10-3-L, and an electric motor of type 4A200M6U3

with a power of 22 kW and a rotational speed of 1000 rpm ensures the operation of the pump type 3102.56-04.

3. The maximum compression force created at the inventive stand 160 those that allows you to test the elastomeric absorbing devices of freight cars.

4. In addition to the program for assembling, disassembling and repairing absorbing devices, the controller is equipped with a program for testing in cyclic loading mode with automatic creation of a load diagram.

5. A stand for testing and repair of absorbing devices of freight cars of the Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW type is bolted to the stand tilter; The stand has a hole in which one of the interchangeable stops is inserted to fix the coupling bolt when the nut is loosened. To test devices of the Sh-6-TO-4 and Sh-6-TO-4U type, the stand is dismantled.

The essence of the utility model is illustrated by figures. Figure 1 presents the inventive stand for testing and repair of absorbing devices of freight cars; figure 2 - press stand; figure 3 shows the piston rod of the hydraulic cylinder of the press, with a nozzle with plates mounted on it, and a plate with touch sensors located on it, mounted on the pressure cone of the absorbing apparatus; figure 4 - the interaction of the piston rod of the hydraulic cylinder with a plate mounted on the pressure cone of the absorbing apparatus; figure 5 - stand press, located on its tilter absorbing apparatus; figure 6 - control panel stand; figure 7 - hydroelectric station; on Fig - block hydraulic equipment of the hydroelectric station.

The main components of the stand are: press, hydraulic station, control devices - control panel and controller, computer, printer. The printer can be installed directly next to the stand or connected to a computer located in the workshop master’s room or in the technical department.

The press (Fig. 1) contains a frame 7, a hydraulic cylinder 2, a tilter 5 for loading and installing under the piston rod the hydraulic cylinder of an absorbing apparatus, control devices, which include a control panel 3 and a controller 10. The frame 1 is welded from a steel sheet 16 mm thick (for increase in structural rigidity) and has two vertical supports - right and left, which are connected by beams at the top and bottom. In the middle part of the upper beam there is a hole in which the hydraulic cylinder 2 is placed. In addition, there are four holes on the upper beam for fastening the hydraulic cylinder with bolts.

The hydraulic cylinder 2 of the press is designed to create a vertical compressive force. The over-piston and under-piston cavities of the hydraulic cylinder have a fitting 11 for connecting the pipelines 12, 13, respectively, for supplying and discharging the working fluid. The piston rod 14 of the hydraulic cylinder contains a replaceable nozzle 16 (Fig.2, 3), with three plates 17 welded to it (Fig.3, 4) located in the same plane perpendicular to the axis of the piston rod of the hydraulic cylinder. The plates 17 are designed to enable touch sensors 19 located on the plate 18. The plate 18 is mounted on the pressure cone of the absorbing apparatus. The ends of the touch sensors 19 are located in a plane parallel to the plane of the plate 18 to determine the start of the piston 14 touching the rod 14 (Fig. 4) of the absorbing apparatus. The sensitive elements of the touch sensors are located in a horizontal plane and are interconnected, the control panel 3 and the controller 10, mounted on the frame 1, according to the scheme And (figure 2). The nozzle 16 of the piston rod of the hydraulic cylinder, interacting with the plate 18, allows you to set the pressure cone of the absorbing device 15 so that the plane of the pressure cone is parallel to the plane of the base of the absorbing device. Touch sensors 19 are necessary for transmitting to the controller a signal about the horizontalness of the pressure cone and the position of the zero reference point of the apparatus stroke and its length, which makes it possible to accurately measure the length of the absorbing apparatus and its stroke.

In addition, on the piston rod 14 (Fig. 1), a bracket 7 is attached that is connected to the stroke sensor 9. The stroke sensor 9 is a device for measuring, recording and visual control of the movement of the moving part of the absorbing apparatus. The travel sensor is made in the form of a rail, which moves together with the rod of the hydraulic cylinder 2 of the press and interacts with a gear (not shown in the drawings), on the shaft of which a disk with holes is fixed, on both sides of which is mounted on a fixed optocoupler pair of infrared AL 107 LEDs and PD256 photodiode . When the rack moves, the gear and the disk rotate, signals (pulses) are transmitted, which are transmitted to the controller 10, processed by its logical device, converted into results, and stored in its memory.

The tilter 5 and the tilting cylinder 8 are pivotally attached to the lower beam of the press frame 1. The tilter is designed to load the absorbing apparatus and place it under the piston rod of the press hydraulic cylinder. The turn of the tilter and lowering is carried out by the hydraulic cylinder of the tilter 8. The stand 6 is bolted to the tilter for testing and repair of absorbing devices of the Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW types. In the stand 6 there is a hole in which one of the interchangeable stops (not shown in the drawings) is inserted to fix the coupling bolt when unscrewing the nut. To test apparatuses of the Sh-6-TO-4 and Sh-6-TO-4U type, the stand 6 is dismantled. The tilter hydraulic cylinder 8 is designed to rotate and lower the tilter.

The control panel 3 and the controller 10 are attached to the frame 1 of the press (figure 5). The location of the buttons, switches, toggle switches and warning lights of the control panel is shown in Fig.6. The “POWER” switch 27 has two positions: “OFF” and “ON” and is designed to enable and disable the stand. The “POWER” control lamps 28, “MANUAL OPERATION MODE” 29 and “TURNER” 30 light up when the “POWER” switch 27 is turned to the “ON” position. The buttons “HYDRAULIC STATION-ON.” 31 and “OFF.” 32 are intended, respectively, for switching on and off

hydrostations 4. The “ASSEMBLY-TEST” switch 39 is designed to turn on one of the engines of the hydrostation, depending on the choice of the type of work (assembly-disassembly or testing). The “HORIZONTAL” button 33 is needed to set the tilter to the horizontal position, and the “VERTICAL” button 34 to the vertical position. Turning the rotary knob of the “KANTOVATOR-PRESS” 35 to the “PRESS” position puts the press into working position, and the “PRESS” 36 warning lamp lights up. The “PRESS-DOWN” 37 button is necessary to lower the piston rod 14, and the “PRESS-UP” button "38 - to raise it. Turning the “OPERATION MODE” switch 40 to the “AUTOMATIC” position puts the press into automatic operation mode. At the same time, the “AUTOMATIC OPERATION MODE” indicator lamp 41 lights up. Assembling, disassembling and testing the absorbing devices are carried out in the MIN position of the LOAD switch 42. The MAX position is used when checking the stand operation (for example, after repair).

The controller 10 (Fig. 5) is a microcomputer that receives and processes signals from motion sensors 9, touch 19 and load (not shown in the drawings), as well as from the control panel from the operator, which issues signals to the electrical system to control the test (diagnosis) process ) and displaying the test results on its display, followed by transferring them to a personal computer and printer (not shown in the drawings) with a printout of the load test diagram. The controller is equipped with programs for assembling, disassembling and repairing absorbing devices and for testing in cyclic loading mode with automatic creation of a load diagram.

I / O devices, a keyboard (4x4) and a display are mounted on the controller housing cover. Keyboard buttons marked with decimal digits are used to enter digital information (personnel number, device number, etc.). The buttons on the right column of the keyboard are used to enter commands marked on the controller body on the right

from these buttons. UP, DOWN, MIN buttons. LOAD, UNLOAD are designed to control valves in the self-diagnosis mode. On the liquid crystal display, information is displayed in two lines of 16 characters.

The controller program menu represents a set of questions that are offered two answers “YES” / “NO”. When choosing the answer “NO”, the next menu line opens (the next question). When choosing the answer “YES”, submenus with answer options open, or the cursor starts blinking in an empty line of the display, waiting for digital data to be entered.

On the end walls of the controller case there are: a PRINTER connector for connecting a printer, a PC connector for connecting a computer, a PSU connector for connecting a network adapter when there is no connection to the control panel, a REMOTE connector for connecting the controller to the control panel using a cable. Inside the case there is a printed circuit board on which microprocessors of the type ATMEGA 8535-16PI and ATMEGA 32 are installed. One microprocessor is used to process information from sensors installed on the stand, the second - controls the work of the stand programs. Microprocessors are mounted on a printed circuit board inside the controller enclosure. It also houses a permanent storage device that has a memory capacity of 64 KB and is intended for temporary storage of information received from microprocessors in the performance of tasks of automated control of a bench, as well as for storing test results of absorbing devices.

The connection of the stand is provided to the hydroelectric station 4 (Fig. 1), providing a nominal oil pressure in the hydraulic system of 20 MPa and a nominal capacity of at least 79.8 l / min. Hydro station 4 is located at a distance of not more than 5 meters from the press frame.

A hydraulic tank 20, two pumps 21 and 22, two electric motors 23 and 24, a hydraulic unit 25 and an electric cabinet 26 are installed on the frame of the hydraulic station (Fig. 7). The hydraulic tank 20 has an inspection cover with an oil indicator. Capacity

a hydraulic tank of 200 liters. The total amount of oil in the hydraulic system is 250 liters. The working fluid from the hydraulic tank 20 is supplied to the hydraulic unit 25 by a gear pump driven by an electric motor. An electric motor 23 (type 4A112M4U3 with a power of 5.5 kW and a rotational speed of 2500 rpm) and pump 21 (type NSh-10-3-L with a nominal outlet pressure of 16.2 MPa, a maximum outlet pressure of 21 MPa and a non-output less than 21 l / min) are designed to operate the stand in the repair mode (disassembly and assembly of absorbing devices), and the electric motor 24 (type 4A200M6U3 with a power of 22 kW and a speed of 1000 rpm) and pump 22 (type 3102.56-04 with a nominal pressure at the exit of 20 MPa and with a nominal productivity of 79.8 l / min) - for the work of the stand when absorbing tests x devices in cyclic loading mode. The electric motor 23 develops a force of up to 160 tc, and the electric motor 24 creates a load from 0 to 60 tc on the stand. Hydroallocators and safety valves are located on the panel of the hydraulic unit (Fig. 8). Hydroallocators with electromagnetic control direct the working fluid to the hydraulic cylinders of the press 2 and the tilter 8 (Fig. 1). Safety valves are required to adjust the pressure of the working fluid.

There are three load sensors on the stand. On the pressure pipe of the hydroelectric station 4 (between the pump and the hydraulic unit) one load sensor is installed (not shown in the figures). The second load sensor is located on the pipeline 12 (Fig. 1) connecting the hydraulic unit 25 with the piston cavity of the hydraulic cylinder. The third load sensor is installed on the pipe 13 connecting the hydraulic unit 25 with the piston cavity of the hydraulic cylinder. The load sensor is a device for measuring, recording and visual control of the load acting on the absorbing apparatus. The load sensor is a commercially available KRT-5 overpressure converter.

The hydroelectric station 4 is connected to the hydraulic cylinders of the press and tilter 2 and 8 by pipelines, respectively supply 72 and release 13 pressure

working fluid (figure 1). Oil sent through pipelines is passed through a filter (not shown in the figures). Oil pressure is shown by a manometer (not shown in the figures).

Stand for testing and repair of absorbing devices of freight cars works as follows. Before carrying out any actions (disassembly, assembly or testing) on the stand, the absorbing apparatus must first be cleaned of dirt and inspected for malfunctions.

Dismantling and assembly of absorbing devices at the stand. On the piston rod 14 of the hydraulic cylinder set nozzle 16 (figure 2). For assembling, disassembling and repairing absorbing devices of the Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW, APE-95-UVZ and APE-120-I types to the tilter 5 of the stand (Fig. 1) bolts attach the stand 6. In the stand 6 there is a hole into which one of the interchangeable stops (not shown in the figures) is inserted to fix the coupling bolt when loosening the nut. To test the absorbing apparatus of the type Sh-6-TO-4 and Sh-6-TO-4U, the stand is dismantled.

Then, on the control panel 3 (Fig.6) turn the switch "OPERATION MODE" 40 to the position "MANUAL". The ASSEMBLY-TEST switch 39 is put into the ASSEMBLY position, and then the POWER switch 27 is turned into the ON position. At the same time, the “POWER” control lamp 28 and “MANUAL OPERATION MODE” 29 light up. On the display of controller 10 (FIG. 5), the inscription: “CASUAL NUMBER” lights up. Then turn on the power station with the button "HYDRAULIC-ON." 31 of the control panel (Fig.6). In this case, the small engine 23 of the hydraulic power station and the pump 21 are turned on. Next, the “TURNER-PRESS” 35 switch is turned to the “PRESS” position. When this lights up the warning lamp "PRESS" 36. By pressing the button "PRESS-UP" 38 raises the piston rod 14 of the hydraulic cylinder.

Then turn the switch “TURNER-PRESS” 35 to the position “TURNER”. At the same time, the “TUNNER” control lamp 30 lights up. The tilter is in a horizontal position.

The absorbing apparatus 75 is placed on the tilter 5 with the bottom to the press (figure 5). Press the button “TURNER-VERTICAL” 34 on the control panel (Fig.6), and, the tilter 5, with the absorbing apparatus installed on it, takes a vertical position (Fig.2). The switch "TURNER-PRESS" 35 is rotated to the position "PRESS". When this lights up the warning lamp "PRESS" 36, and, the tilter with the absorber located on it is installed under the piston rod 14 of the hydraulic cylinder 2 of the press. Then press the “PRESS-DOWN” button 37, the absorption apparatus is compressed.

Dismantling, repair and assembly of the absorbing apparatus is carried out in accordance with the “Instructions for the repair and maintenance of the automatic coupler of the rolling stock of railways” CV-VNIIZHT-494 of September 16, 1997 with amendments and additions to the Order of the Ministry of Railways of the Russian Federation A-737 of August 16, 2002.

Then, the load is removed from the absorbing apparatus by pressing the "PRESS-UP" 38 button on the control panel 38 (Fig.6), while the piston rod 14 of the hydraulic cylinder 2 rises to its highest position (Fig.1). After that, the tilter is moved to a horizontal position. To do this, turn the switch “TURNER-PRESS” 35 (FIG. 6) to the position “TURNER” and press the button “TURNER-HORIZONTAL” 33. When the tilter 5 is horizontal, the switch “TURNER-PRESS” 35 is moved to the position “PRESS” ". Absorbing apparatus lifting mechanism is removed from the tilter.

Testing (diagnosis) of absorbing devices of freight cars at the stand.

On the piston rod 14 of the hydraulic cylinder, a nozzle 16 is installed (FIG. 2) with three plates 17 welded to it (FIGS. 3, 4).

For testing (diagnosing) absorbing devices of the Sh-1-TM, Sh-2 V, Sh-2-T, PMK-110, 73ZW, APE-95-UVZ and APE-120-I types to the Kantov-body 5 of the stand (FIG. .1) bolt fasten the stand 6. One of the interchangeable stops (not shown in the figures) is inserted into the hole of the stand 6 to fix the coupling bolt when loosening the nut. To test the absorbing apparatus of the type Sh-6-TO-4 and Sh-6-TO-4U, the stand is dismantled.

On the control panel (Fig.6) turn the switch "OPERATION MODE" 40 in the position "MANUAL". The ASSEMBLY-TEST switch 39 is moved to the TEST position. The “POWER” switch 27 is turned to the “ON” position and the hydrostation is turned on by pressing the “HYDRAULIC STATION - ON” button 31. At the same time, the hydrostation engine 24 and pump 22 are turned on (Fig. 7). The switch "TURNER-PRESS" 35 is transferred to the position "PRESS". When this lights up the warning lamp "PRESS" 36.

On the panel of the controller 10 (Fig. 5), press the POWER button (not shown in the figures), the controller turns on. In this case, the chains of all sensors are turned on, the program for calculating the load on the piston of the hydraulic cylinder 2 of the press is activated, the drain pressure value is entered into the memory of the controller 10 and displayed on its display, and the program sets the load sensor to zero. The program of the controller 10 (figure 2), intended for testing itself automatically selects the cyclic loading mode. Loading occurs with a force of 0 to 60 tc.

On the control panel (Fig.6) switch "TURNER-PRESS" 35 is transferred to the position "TURNER". Press the button "TURNER-HORIZONTAL", tilter 5 (figure 1) takes a horizontal position. The absorbing apparatus 15 is stacked with the bottom of the press on the tilter 5 (figure 5).

On the pressure cone of the absorbing apparatus, a plate 18 is installed with at least three touch sensors 19 fixed to it (FIGS. 3, 4).

To diagnose the Sh-1-T-M absorbing apparatus, it is laid on the tilter together with the thrust plate, and for the Sh-6-TO-4 apparatus to diagnose it, together with the thrust plate and traction clamp.

By pressing on the control panel (FIG. 6) the “TURNER-VERTICAL” button 34, the tilter 5 with the absorber located on it is installed in a vertical position under the press (FIG. 2). Then turn the switch “OPERATION MODE” 40 to the position “AUTOMATIC”. On the display of the controller 10 (Fig. 5), the prompt “START YES / NO” appears. Press the "YES" button. If there are no comments on the stand self-testing system, the display will show “TABLE NUMBER”, the operator should enter his personnel number and press the “YES” button on the controller keyboard 10. Next, the display will ask “APPARATUS NUMBER”, enter the number of the absorbing device and press the button "YES". The next controller request is: “TYPE OF MACHINE”. You must press the “SELECT” key, enter the type of device and press the “YES” button. A message appears on the controller’s display: “THE MACHINE IS TESTING”. In this case, the piston rod 14 of the press hydraulic cylinder (FIG. 1) rises and the stroke sensor 9 is zeroed.

Then the piston rod 14 of the hydraulic cylinder lowers, compresses the absorbing apparatus and maintains it in a compressed state for 6 s. After that, the piston rod 14 of the hydraulic cylinder 2 is unloaded, and, under the action of the spring of the absorbing apparatus rises smoothly. One loading cycle has passed. The piston load rises again to its maximum value, and the piston rod 14 lowers again, compresses the absorbing apparatus and maintains it in a compressed state for 6 s. After performing a predetermined number of loading cycles, the controller 10 provides a control signal for raising the piston and fixing it in the upper position. The repetition of loading cycles is carried out until the efficiency of the absorbing apparatus is ascertained (the apparatus is considered operable if at each loading

there is a stepwise compression of the apparatus, and after complete removal of the load, it returns to its original state).

Next is the automatic processing of the test results. On the display of the controller 10, a message appears about the serviceability or malfunction of the absorbing device: “EXPIRED” or “NOT EXPERT.” If the device is unsuitable, press the "YES" button on the controller keyboard. The display shows the message: B = (unit height in mm) and the message: NORMAL (or NOT NORMAL). Press the "YES" button again. The display shows the message: X = (machine travel in mm) and the message: NORMAL (or NOT NORMAL). Press the “YES” button again. The following message appears on the display: CN = (initial tightening force, tc) NORMAL (or NOT NORMAL). If the machine is suitable and the printer is connected, then the message “ON PRINTER” appears on the controller, press the “YES” button and the printer will print the test results and load diagram. All data stored in the controller is printed, starting from the last test.

Then, on the control panel (Fig.6), turn the switch “OPERATION MODE” 40 to the position “MANUAL”, and the switch “TURNER-PRESS” to the position “TURNER”. The “TURNER-HORIZONTAL” button 33 is pressed and the tilter with the absorbing apparatus installed on it returns to the horizontal position. Absorbing apparatus lifting mechanism is removed from the tilter.

After testing the absorbing devices Sh-1-TM and Sh-2V, you must first move the device from the base plate of the tilter until the stop comes out of the hole in the tilter.

By pressing the “HYDROSTATION-OFF.” 32 button on the control panel, the hydraulic station is turned off. Then turn the “POWER” switch 27 to the “OFF” position and the stand power is turned off.

Claims (1)

A stand for testing and repair of absorbing devices of freight cars, containing a press, which is a welded frame made of sheet steel with two vertical supports, connected by beams at the top and bottom, equipped with a press hydraulic cylinder, a tilter, a tilter hydraulic cylinder, travel and load sensors, a stand control panel and a controller , hydrostation, computer, printer, characterized in that it includes a nozzle for the piston rod of the hydraulic cylinder, with at least three plates welded to it, located in one plane a tee perpendicular to the axis of the piston rod of the hydraulic cylinder, a plate mounted on the pressure cone of the absorbing apparatus, with at least three touch sensors fixed to it, whose ends are located in a plane parallel to the plane of the plate and whose sensitive elements are located in a horizontal plane and connected between by itself, a control panel and a controller according to the I circuit, a pump with a capacity of at least 21 l / min and an electric motor with a power of 5.5 kW, ensuring the operation of the stand in repair mode, the pump is productive with a minimum of 79.8 l / min and an electric motor with a power of 22 kW, which ensure operation of the test bench in the cyclic loading test mode, and a controller located at the hydroelectric station equipped with programs for assembling, disassembling and repairing absorbing devices and for testing in the cyclic loading mode with automatic creation of a load diagram, having a permanent storage device with a memory capacity of 64 Kbytes, a stand for testing and repair of absorbing devices of the type Sh-1-TM, Sh-2 V, Sh-2T, PMK-110, 73ZW, bolted to the channel ovatelyu having a hole into which is inserted one of the interchangeable supports.