Coupling sleeve with electric contacts for oil-air mixture

FIELD: machine building.

SUBSTANCE: oil-air coupling sleeve has electric elements so that coupling sleeve together with oil-air mixture transfer can also conduct electric current through electric connectors.

EFFECT: simplifying automated connection or disconnection during replacement of rolls in a group of rolling mills respectively.

17 cl, 4 dwg

 

The scope of the invention

The invention relates to couplings for oil-air mixture in the system of oil-air lubrication and its application, the coupling additionally includes electrical contacts, so that the coupling along with the transfer of the oil-air mixture may also conduct electric current through the electrical connectors. In particular, such coupling may be used in the slab design rolling stands.

The level of technology

Still from the prior art known only to couplings for oil-air lubrication or oil-air mixture, which allow the transfer of the oil-air mixture.

In particular, in the field of rolling technology, for example, the bearings of the rolls are increasingly operated with oil-air lubrication instead of oil lubrication. This is primarily due to the need smaller quantities of oil, while oil-air lubrication not required lateral pipeline. In the case of oil lubrication by measuring the temperature in a discharge pipe of the oil can be controlled by the condition of the bearings and their lubrication. Of course, in the case of oil-air lubrication temperature control of the discharge line is no longer possible, because there is no su is here, therefore, the temperature sensors should be embedded directly into the cushions of the rolls, which, however, requires its own wire for transmitting power or signals. If the bearings of the rolls are embedded temperature sensors or vibration, then before replacing the rolls they must first be disconnected manually after replacing rolls again manually connected by means of plugs. Not to mention the associated additional work, it may happen that re-connecting plugs will fail and because of that, perhaps, there will be severe damage to the bearings of the rolls, which can be avoided by controlling the vibration and/or temperature of the bearings of the rolls. Attach oil-air coupling still occurs through the coupling, in plate structures stand. However, if plate design provides another coupling for electrical wiring, it also makes the connection and disconnection when performed regularly replacing rolls. Besides hampered automatic connection and disconnection.

Utility model DE Germany 85 32 752 U describes a connecting device for pipe working fluid with oil-air lubrication of rolling stands. However, this connecting device is not what you use couplings for lubricant simultaneously transmit electrical currents. Moreover, this document provides only a visual inspection of the rolls.

Therefore, there is a technical problem consisting in the elimination of the aforementioned disadvantages.

Description of the invention

The aforementioned task is solved by the following invention, which includes the following:

coupling for oil-air lubrication, and coupling includes a first coupling half with the first housing and the first hose connection, and a second coupling half with the second housing and the second hose connection, with both coupling halves can be connected to each other, so that the oil-air mixture that flows through the first hose connection, flows through the connected coupling the second hose connection, which differs in that it further has a first electrical connector in the first coupling and the second electrical connector in the second half-coupling which, when the connection of the first and second coupling halves are also connected, so electric current can flow through the United electrical connectors.

Electric current, for example, from a temperature sensor or other sensor can thus also be transmitted through the oil-air coupling. Only need one connection sleeve, which is also the alternative can the be used in the automatic replacement of the rolls.

In the preferred embodiment, each electrical connector is located concentrically inside the housing of the respective coupling halves.

In another preferred embodiment, inside one of the coupling halves have movable in the direction of the connection element, which is connected with a corresponding electrical connector, and a movable element in the case of a disconnected couplings seals the housing of the coupling in the direction of the connection, so that the oil-air mixture cannot flow from the coupling halves.

In another preferred embodiment, the electrical connectors are located in the direction of the connection so that the electrical connector during connection of the two coupling halves are joined in the first place and only after that is movable and connected with the corresponding electrical connector element opens the passage for the oil-air mixture.

In another preferred embodiment, the electrical connectors when connecting condensed, while the movable element only then opens the passage for the oil-air mixture.

This preferred variant implementation has the advantage that the electrical connectors are protected from oil-air mixture and cannot come into contact with it.

In another preferred variationbetween the second coupling half has a second movable element, which in the case of a disconnected couplings seals the housing of the second coupling in the connection direction, so that the oil-air mixture cannot flow from the coupling halves.

In another preferred embodiment, the housing of the first coupling when connecting the first and second parts of the coupling moves the second movable element of the second coupling in the direction of the connection, so that opens the passage for the oil-air mixture.

In another preferred embodiment, connected coupler can rotate around its longitudinal axis.

This feature simplifies the process of connection or disconnection, as there is no optimal preferred radial direction in relation to the mechanics of the connection.

In another preferred embodiment, between the electrical connectors and the inner wall of the housings of the coupling has a passage for the oil-air mixture.

In another preferred embodiment, at least one electrical connector can move in the longitudinal direction.

In another preferred embodiment, at least one of the electrical connectors stretched in the direction of connection of the spring, which is retained by a wall, held almost perpendicular to the inner wall of the cor the USA.

In another preferred embodiment, the baffle has at least one hole for oil-air mixture.

In another preferred embodiment, electrical connectors, at least one of the coupling halves in the direction of the connections are made shorter than the section of the coupling, so that the housings of the coupling halves are connected to each other before connect the electrical connectors.

This preferred system of electrical connectors has the advantage that the electrical contacts with a small deviation of the process connection on the direction of the connection can not be bent, broken or otherwise damaged.

In another preferred embodiment, the first electrical connector is made within the first half-coupling in the form of a plug, and the second electrical connector made in the second half-coupling in the form of a nest.

In another preferred embodiment, the electric wires are led out almost parallel to the hose connections from the rear of the coupling.

This preferred characteristic contributes to the fact that the connection and disconnection of the coupling is even more simplified, as for electrical cables must place only in the direction of the connection.

In another preferred variant is NTE electrical wires are led through a section through the cable screw connection or filled in the buildings.

Additionally, the invention includes a method of synchronous control of lubrication and lubricant transfer funds roll in a group of rolling stands, with the trunnions of the rolls mounted in the bearing, which is located in the cushion, the method characterized in that the cushion provided by a recess (hole) and in this recess is located a vibration sensor and/or temperature, which by means of a cable connected with the proposed invention a coupling, so that, accordingly, connection, transfer, and disconnect the oil-air mixture and transmission of electric currents are conducted through the coupling.

This method allows also running couplings simultaneously to transmit electric currents or signals and lubricants. Due to the location of sensors in pillows control the bearings of the rolls is now always possible, when the coupling is in the United state. Connection and disconnection of all cables can be carried out in the same process manually or, in particular, automatically.

Brief description of figures

Below we briefly describe the figures of embodiments, it is shown:

Fig. 1 is a drawing in section of the roll group of rolling stands, cushion showing the location of the embedded sensor,

Fig. 2 - drawing in the treatment connected clutch in the first embodiment in accordance with the invention,

Fig. 3 is a drawing in cross section of broken clutch according to another exemplary embodiment in accordance with the invention,

Fig. 4 is a drawing in cross section connected to the coupling shown in Fig. 3.

Detailed description of examples of implementation

In General, it is necessary first to specify that the expression "first" and "second" in the following description are only used for clarity and other possible wording or sequence names are thereby not excluded.

In Fig. 1 shows a cross-section of the roll 100 group of rolling stands. The roll 100 has a neck roll 400, which can rotate in the bearing of the roller in a stationary cushion 200. The figure schematically shows only half of the roll. In the cushion 200 has a recess 300 (drilled cavity), which may be hosted by a sensor (not shown). The electrical connector of such a sensor can then be connected with a coupling, for example, in the slab design rolling stands. Roller 100 may represent, for example, a work roll, a support roll or intermediate roll. Accordingly, in the airbag 200 is provided with notches 300 for sensors, in particular sensors oscillations (vibrations) or temperature. In these recesses 300 are inserted sensors that connect to automatically or manually connect coupling for oil-air is Oh lubrication, or other lubricant, or for the supply system, which is equipped with electrical connectors. The notch 300 for these sensors runs preferably parallel to the axis of the roll, but can also be at an angle to the axis of the roll. Built into this recess the sensor may preferably via a cable to connect to a coupling in accordance with the invention, so that it is possible to simultaneously transfer lubricants and transmission of electric currents from the sensor. It is also possible that the coupling was built directly into the cushion 200, so that was not required by any other loose cable between the coupler and the sensor. The arrangement may be equivalent to the location of the sensor.

In Fig. 2 shows one example implementation of a connector Assembly in accordance with the invention. Coupling includes a first coupling half 1 and a second coupling half 1`, which respectively include the connectors 2, 2` for oil-air mixture. Inside the coupling the corresponding coupling half 1, 1` is located coaxially, and yet in the connection direction, the electrical connector 3, 3`. The connector in this example made in the form of the connector 3 and the socket 3. These electrical connectors 3, 3` connected respectively movable element 4, 4`, which, first is this, serves to seal disconnected couplings. This movable element 4, 4` has practically adapted to the inside of the housing of the coupling outer shape. The movable element 4, 4` provided with, in addition, channels or, respectively, holes or passages for the oil-air mixture. In particular, the corresponding movable element 4, 4` and the corresponding electrical connector 3, 3` are strained or, respectively, are biased by spring 6, 6`, which is located in the direction of the coaxial connection. Spring 6, 6` thus rests respectively on the partition wall 7, 7`, which runs perpendicular to the body of the respective coupling halves 1, 1`. In the partition 7, 7` has one or more holes or passages 8, 8` in the direction of the connection, so that through them may be oil-air mixture. The seal 5 is used to seal the two housing halves in the United state. Seal 5, 5` is used to seal the space between the respective movable element 4, 4` and the housing of the respective coupling halves 1, 1` in the disconnected state. Seal 5`` is used to seal electrical connectors 3, 3` in the United state. Electrical wires or cables from the corresponding electrical connector 3, 3` in the axial direction the AI in the direction of the corresponding connector for the oil-air mixture 2, 2` and then perpendicular to the direction of the connection is removed from the housings of the coupling through the cable screw connections 9, 9`, which can seal the case. Alternatively, you can fill the cables in the buildings. In addition, you can display the appropriate cable from the chassis through the hole, which is located almost parallel to the direction of connection or, at least, includes a component of the same direction. Cables are generally flexible or movable, so they can move when connecting or disconnecting from the electrical connector 3, 3`. In order to avoid possible leakage of electric currents may use a non-conductive medium or oil.

In the disconnected state, the movable elements 4, 4` are pressed or drawn by the springs 6, 6` to the holes of the halves of the body. Thanks to the seals 5, 5`, the coupling halves 1, 1` are sealed, so that the oil can't get out of the coupling. Electrical connectors 3, 3`are shifting back in the direction of the connection, so they do not protrude from the casing coupling halves 1, 1`.

Now, when the coupling is connected, first encountered the appropriate section of the coupling halves 1, 1` so that they are sealed by the seal 5`. Only after that connect electrically the connectors 3, 3`, while the oil-air mixture is still not flowing through the coupling, as it prevents the corresponding movable element 4, 4` and the seals 5, 5`. Between the electrical connectors and movable elements can be, in particular, also provides seal to protect the electrical connectors from the environment or oil. When the electrical connectors 3, 3` are connected and the buildings of the coupling halves 1, 1` continue to move with each other in the connection direction, the corresponding movable element 4, 4` is moved in the direction of the respective walls 8, 8`, overcoming the force of the respective springs 6, 6`, so that between the corresponding rolling element 4, 4` and the corresponding housing half is formed a passage or, respectively, the transmission hole for oil-air mixture. In particular, the shape of the corresponding openings slightly narrowed, so that after moving the movable element in the direction of the corresponding partition between the movable element and the inner walls of the respective housing halves is formed throughput hole for oil-air mixture. An alternative can be provided by a cavity or recess in the direction of connection in the corresponding movable element facing the side wall element is, for greater flow. In case of a disconnection, the above-mentioned processes are carried out in reverse order.

In Fig. 3 shows another embodiment of the coupling in accordance with the invention. Coupling consists of two coupling halves 11, 11`, at the ends of each coupling halves 11, 11` are the connectors 12, 12`, which can be connected properly pipes or hoses. Within each of the coupling halves 11, 11` is coaxially located electrical connector 13, 13`, and accordingly the movable element 14, 14`. Element 14 is connected with the electric connector 13. When this connector 13 may be rigidly connected to the element 14 or movably connected with it. The electrical connector 13 in this example is made in the form of a socket or electrical coupling. The electrical connector 13` is a plug. But the plug and socket can be located that are being swapped. The seal 15 seals in the disconnected state of the coupling the coupling half 11. Between the body of the coupling halves 11 and the movable element 14 oil in this case cannot be removed from the coupling. Seal 15` and 15`` condense in the event of disconnection of the coupling 11`. Between the movable element 14` and an electric connector 13` oil out of the coupling can not.

When is alumafly 11, 11` for connection are shifted with each other, first touch two halves of the housing. When the coupling halves 11, 11` continue to move in the direction of the connection or, respectively, in the axial direction with each other, then in the following turn, are connected to electrical connectors 13, 13`. When the coupling halves 11, 11` continue to move further in the direction of connection with each other, the movable element 14 is moved relative to the housing of the coupling halves 11 against the direction of the connection between the movable element 14 and the housing coupling 11 is formed throughput hole or passage. The movable element 14 may be by means of a spring or other elastic means is stretched in the axial direction. This spring is preferably held or gripped by a partition 17. The partition 17 is almost perpendicular to the direction of connection, and may preferably have a few access holes for the oil-air mixture. The partition can be, in particular, the shape of a square or cylinder, as well as other forms, but some of the rolling element 14 can be carried out in the axial direction through the hole in the partition 17, and the partition 17 has a larger radial diameter than the portion of the rolling element 14, which can move with vosi hole in the partition 17. In addition, during the process of connection, once connected to the electrical contacts in the coupling half 11` movable element 14` is moved by the body of the coupling 11 by the movable part 18` in the direction of the connector 12`which offer the channel or, respectively, access hole for the oil-air mixture. The movable part 18` is, in particular, in order to transfer the force from the body of the coupling 11 to the rolling element 14`. The appropriate cable, which is connected with a corresponding electrical connector 13, 13`of Fig. 3 and 4 are not shown, practically laid, on the one hand, in the coupling half 11 in the direction of connection from the electrical connector 13 through the hole in the partition wall 17 through the hole 19 and on the other hand, in the coupling half 11` from the electrical connector 13` almost in the direction of the connection hole 19`. Holes 19, 19` are positioned so that the protruding cables requires little space in the radial direction. However, you can also display the openings 19, 19` almost in the direction of the connection, i.e. in the axial direction of the housings of the coupling halves 11, 11`. The cables may, for example, be filled in the holes 19, 19`to ensure that the density of the coupling. But the relevant cables can also be removed from the body in other ways, if this is desirable, in the example, also through the cable screw connection and/or to the side, as shown in Fig. 2.

In Fig. 4 shows a coupling according to the embodiment shown in Fig. 3, however, in the United state. This state get when doing the above. In addition, it is seen that the seal 15 protects the electrical contacts 13, 13` from the environment or, respectively, the oil before the oil can get out of the coupling halves. Seals 15, 15`` condense the body of the coupling on the outside and act before it opens throughput hole for oil-air mixture through the coupling halves 11, 11`. Moreover, it is seen that the portion of the rolling element 14 is moved through the hole of the partition 17. In this configuration, the oil-air mixture can flow through the connected coupling halves 11, 11`.

Described in the embodiments of the coupling can preferably be used in a group of rolling stands, but the application of the described oil-air couplings and other technical areas. The radial diameter of the described couplings, as a rule, is less than 100 mm, and preferably from 50 to 80 mm, For certain purposes, this diameter may also be provided a large. The material of the body of the coupling, represents before occhialino stainless steel, but you can also use any other material that can withstand the resulting pressure lubricants, and also has a little wear in the processes of connection and disconnection. You can also include coupling directly into the cushion, for example, in a corresponding recess.

Specification items

1, the First coupling

1` the Second coupling

2, the First connector for the oil-air mixture

2` the Second connector for the oil-air mixture

3, the First electrical connector

3` Second electrical connector

4, the First movable element

4` the Second movable element

5, 5`, 5` Seal

6, 6` Spring

7, 7` Walls

8, 8` Holes

9, 9` Cable threaded connection

11, the First coupling

11` the Second coupling

12 First connector for oil-air mixture

12` of the Second connector for the oil-air mixture

13 the First electrical connector

13` of the Second electrical connector

14 the First movable element

14` of the Second movable element

15, 15` Seal

15`, 15`` Seal

17 Partition

18` the Movable part

19, 19` holes

100 Roll

200 Pillow

300 Notch sensor

400 Per roll

1. Coupling for oil-air lubrication, which includes the first coupling half (1, 11) with the first housing and the first hose with the Union (2, 12)and a second coupling half (1', 11') with the second housing and the second hose connection (2', 12'), with both coupling halves(1, 11, 1', 11') made with the possibility of connection with each other so that the oil-air mixture which flows through the first hose connection (2, 12), passes through the connected coupling(1, 11, 1', 11') the second hose connection (2', 12'), characterized in, which further comprises a first electrical connector (3, 13) in the first coupling half (1, 11) and a second electrical connector (3', 13') of the second coupling half (1', 11')that, when connection of the first and second coupling halves(1, 11, 1', 11') also connected so that electric current can flow through the United electrical connectors(3, 13, 3', 13').

2. Coupling according to claim 1, in which each electrical connector(3, 13, 3', 13') located concentrically inside the housing of the respective coupling(1, 11, 1', 11').

3. Coupling according to claim 1, in which the inside of one of the coupling halves(1, 11, 1', 11') there are movable in the direction of the connection element(4, 4', 14, 14'), which is connected with a corresponding electrical connector(3, 13, 3', 13'), while the movable element(4, 4', 14, 14') in the case of a disconnected state of the coupling seals the housing of the respective coupling(1, 11, 1', 11') in the connection direction, so oil-air mixture is not allowed is to flow from the coupling halves (1, 11, 1', 11').

4. Coupling according to claim 3, in which the electrical connectors(3, 13, 3', 13') located in the connection direction so that the electrical connectors(3, 13, 3', 13') when the connection of the two coupling halves(1, 11, 1', 11') connect in the first place, and only after that is movable and connected with the corresponding electrical connector(3, 13, 3', 13') item(4, 4', 14, 14') opens the passage for the oil-air of the mixture.

5. Coupling according to claim 4, in which the electrical connectors(3, 13, 3', 13') after the connection is sealed, and the movable element(4, 4', 14, 14') only then opens the passage for the oil-air mixture.

6. Coupling according to claim 3, in which the second coupling half (1', 11') has a second movable element (4', 14'), which in the case of a disconnected state of the coupling seals the housing of the second coupling half (1', 11') in the direction of the connection, so that the oil-air mixture cannot flow from the coupling halves.

7. Coupling according to claim 6, in which case the first coupling half (11) when connecting the first and second coupling halves (11, 11') moves the second movable element (14') of the second coupling half (11') in the direction of the connection, so that opens the passage for the oil-air mixture.

8. Coupling according to any one of claims 1 to 7, which in the United state is rotated around its longitudinal axis.

9. Coupling according to any one of claims 1 to 7, in which between the electrical connectors(3, 13, 3', 13') and the inner wall of casing coupling(1, 11, 1', 11') there is a passage for oil-air mixture.

10. Coupling according to any one of claims 1 to 7, in which at least one electrical connector(3, 13, 3', 13') made with the possibility of moving in the longitudinal direction.

11. Coupling according to any one of claims 1 to 7, in which at least one of the electrical connectors (3, 3', 13) stretched in the direction of connection of the spring (6, 6'), which is retained by a wall (7, 7', 17), held almost perpendicular to the inner wall of the housing.

12. Coupling according to claim 6, in which the partition wall (7, 7', 17) has at least one hole for oil-air mixture.

13. Coupling according to any one of claims 1 to 7, in which the electrical connectors(3, 13, 3', 13'), at least one coupling(1, 11, 1', 11') in the connection direction is made shorter than the body of the coupling(1, 11, 1', 11'), so the body of the coupling(1, 11, 1', 11') are connected to each other before connect the electrical connectors(3, 13, 3', 13').

14. Coupling according to any one of claims 1 to 7, in which the first electrical connector (3, 13) is made within the first half-coupling (1, 11) in the form of a plug, and a second electrical connector (3', 13') is made inside the second the second coupling half (1', 11') in the form of a nest.

15. Coupling according to any one of claims 1 to 7, in which the electric wires are led out almost parallel to the hose connections(2, 2', 12, 12') from the rear side of the coupling.

16. Coupling indicated in paragraph 15, in which the electric wires are led through the housing through the cable screw connection or filled in the shell.

17. Method of synchronous control of lubrication and lubricant transfer means rolls (100) in the group of rolling stands, with axle (400) rolls (100) is installed in the bearing, which is located in the cushion (200), characterized in that the cushion (200) is provided by a recess (300), and in this recess (300) has a vibration sensor and/or temperature, which via a cable connected to a coupling according to any one of claims 1 to 16, and accordingly, connection, transfer, and disconnect the oil-air mixture and passing electric currents through the coupling.



 

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EFFECT: enhanced reliability.

1 dwg

The invention relates to the production of pipes, in particular for the connection of pipes with the possibility of creating an electrically conductive connection between the pipe and conductor of the coaxial cable

Pipe // 2260736

FIELD: pipeline transport.

SUBSTANCE: pipe comprises fiberglass layer with electroconducting binder. The electroconducting binder is applied only on the outer side of the reinforced fiberglass layer.

EFFECT: enhanced reliability.

1 dwg

FIELD: machine building.

SUBSTANCE: invention is related to system of mechanical and electric connection between ends of two substantially coaxial shafts, to equipment of electrolytic cell for electrolytic production of aluminium and to device for piercing and measurement. In system of mechanical and electric connection between ends of two substantially coaxial shafts every end of shaft comprises annular groove next to axial end extension. Mentioned ends are connected inside coupling, comprising the first annular collar, shape of which complements shape of annular groove of the first shaft, the second annular collar, shape of which complements shape of annular groove of the second shaft, cavity intended for installation of mentioned ends of shafts, and axial height of which exceeds sum of axial heights of axial end extensions and in which axial end extensions of both shafts remain in permanent mechanical and electric contact, due to availability of elastic electroconducting facility. Equipment of electrolytic cell for electrolytic production of aluminium comprises mentioned system of mechanical and electric connection between ends of two substantially coaxial shafts. Device for piercing and measurement is intended to measure temperature and level of electrolyte in electrolytic cell bath after piercing of bath hardened surface crust for production of aluminium by means of fire electrolysis of alumina dissolved in mentioned electrolyte. It comprises mentioned system of mechanical and electric connection between ends of two substantially coaxial shafts. At that master shaft is stem of breakdown pneumatic power cylinder, and slave shaft is stem-extender, on which part is installed that is intended for submersion in electrolyte.

EFFECT: provision of wear resistance, reliability of electric contact.

13 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: oil-air coupling sleeve has electric elements so that coupling sleeve together with oil-air mixture transfer can also conduct electric current through electric connectors.

EFFECT: simplifying automated connection or disconnection during replacement of rolls in a group of rolling mills respectively.

17 cl, 4 dwg

Tube // 2521700

FIELD: chemistry.

SUBSTANCE: tube contains composite fibre material with antistatic binder. To improve durability, the tube is made of material which is not easily combustible with antistatic binder in form of a composition with the following components, pts.wt: epoxy resin ED-20 or epoxy novolac DEN 431 90…95; curing agent isomethyltetrahydrophthalic anhydride (Iso-MTHPA) 85…95; accelerating agent Alcofen 0.5…3.0; fire retardant aluminium hydroxide APYRAL 33 280…320; electroconductive paste EP-25 5…30; graphite GE-1 or GE-3 5…50.

EFFECT: high durability.

1 dwg

FIELD: machine building.

SUBSTANCE: invention relates to a connection element between two hydraulic lines, both of which can be, for example, part of a fuel feed system. Device includes a connector for connection of first electroconductive element of hydraulic line, electroconductive at least from inside, to second element of hydraulic line, and also includes an electroconductive intermediate element, which is inserted with its first end, at least partially, in first element of hydraulic line connected to second element of hydraulic line by means of detachable fastener, and is connected via an electrically conductive method with conducting elements, which are connected to a predetermined electric potential.

EFFECT: invention prevents occurrence of electrostatic charges and provides simple installation and dismantling of device.

11 cl, 3 dwg

FIELD: pipe.

SUBSTANCE: group of inventions relates to connectors of pipelines. Electrically conductive hose cutting clip has at least one end tab that is shaped to provide a cutting edge for penetration of inner layer(s) of a multiple layer fluid conveyance hose when it is clipped onto a pipeline connector. Hose is installed on pipeline connector by forcing it onto connector. Cutting action by cutting clip provides for a relatively low resistance electrical connection between an electrically conductive layer of hose and pipeline connector. This can be used to provide a signal path from a sensing element on or in hose to a system electronic component.

EFFECT: invention improves connection reliability of pipelines.

7 cl, 8 dwg

FIELD: tribometry.

SUBSTANCE: device has the platform which is provided with an article and set on rollers, drive for reciprocating, unit for loading articles, and pickups for recording forces and displacements .

EFFECT: enhanced accuracy of testing.

1 cl, 3 dwg

FIELD: measuring engineering.

SUBSTANCE: instrument has platform pivotally connected with the base, box without bottom filled with plastic material, tie-rod device, bearing member which can be adjusted in height with spacers and guides mounted on the plate. The layer of material comprises particles. The box is connected with the platform through a damping link provided with arresting carrier.

EFFECT: enhanced accuracy of measurements.

2 dwg

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