CN114001064A

CN114001064A - Bogie deflection detection cylinder

Info

Publication number: CN114001064A
Application number: CN202011510509.2A
Authority: CN
Inventors: 冯思远; 王古月
Original assignee: Individual
Current assignee: Beijing Dingrui Tongda Rail Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-02-01
Anticipated expiration: 2040-12-18
Also published as: CN114001064B

Abstract

The invention relates to the technical field of railway rolling stock coupling, in particular to a bogie deflection detection cylinder, which comprises a bogie deflection detection cylinder, wherein the bogie deflection detection cylinder is arranged on a side beam of a bogie and is positioned between two limiting plates below a car body, two pistons are arranged in the bogie deflection detection cylinder, the bogie deflection detection cylinder is divided into a front chamber, a middle chamber and a rear chamber by the two pistons, piston rods are respectively arranged on the two pistons, the two piston rods of the bogie deflection detection cylinder can be contacted with the limiting plates on the side after extending out, the middle chamber is connected with an air inlet pipe, and a three-way electromagnetic valve with one end communicated with the outside is arranged on the air inlet pipe; the front cavity and the rear cavity are connected with oil pipes, and the two oil pipes are respectively connected with the rear cavities of the two positioning piston cylinders, so that hydraulic oil can push piston rods of the positioning piston cylinders arranged on two sides of the coupler at the end of the car body to press the coupler after entering the rear cavities, and the adjustment of the position of the coupler is realized.

Description

Bogie deflection detection cylinder

Technical Field

The invention relates to the technical field of railway locomotive vehicle coupling, in particular to a deflection detection cylinder of a bogie.

Background

The coupler refers to hooks at two ends of a train or a locomotive and has the functions of connection, traction, buffering and separation. At present, the connection mode of the railway train is to connect two adjacent trains through a coupler. When the two vehicles are connected, a shunting driver usually sends a connecting signal, and pushes a front vehicle to be in butt joint with a rear vehicle.

However, in order to adapt to the curve and straight change of the line, the coupler is specially arranged to be capable of deflecting left and right relative to the car body, namely the coupler can move around the fixed shaft. When two vehicles are connected with each other, the longitudinal central lines of the two coupling hook bodies are ensured to be close to and correctly coupled above the same straight line, and if the front and rear vehicle hooks are not properly positioned, the two vehicle hooks cannot be coupled. At the moment, the coupled vehicle is required to stay at a position which is about 1m away from the coupled vehicle, then one coupler body is manually pushed to the vicinity of the other coupler body, the longitudinal central lines of the two coupler bodies are close, and after the two pairs of coupler tongues can smoothly extend into the wrist cavities of the other coupler tongues, a shunting driver is instructed to push the coupled vehicle and the coupled vehicle to be coupled.

However, in the coupling process, firstly, the safety is low, and casualties are easily caused if the carriage slides, so that great personal safety hazards are brought to shunting personnel; secondly, the efficiency is low, because whether the relative positions of the two car couplers can be directly linked cannot be directly confirmed in advance, the vehicle to be linked needs to approach the linked vehicle, and after the shunting locomotive is stopped, a shunting worker arrives at a linking place, checks the site, adjusts the positions of the car couplers and informs a shunting driver of linking operation; and thirdly, the coupler is easy to be damaged by collision, and if a shunting worker cannot timely find that the position of the coupler is improper, the two coupled vehicles can form a fist hook due to the dislocation of the coupler, so that the coupler cannot be coupled correctly.

The automatic adjustment of the coupler needs to be realized if the above technical problems need to be solved, however, the automatic adjustment of the coupler needs to be realized by firstly detecting the deflection of the bogie and the vehicle, and then outputting different driving forces according to the detection result to realize the adjustment of the coupler position.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a truck deflection detection cylinder capable of providing different driving forces according to the detection results of the deflection of a truck and a vehicle.

In order to achieve the purpose, the invention provides the following technical scheme:

a bogie deflection detection cylinder is provided with two first pistons, the bogie deflection detection cylinder is divided into a front chamber, a middle chamber and a rear chamber through the two first pistons, piston rods are arranged on the two first pistons, one piston rod extends out of the bogie deflection detection cylinder through the rear chamber, the other piston rod extends out of the bogie deflection detection cylinder from the front chamber, and sealing rings are arranged between the two piston rods and the bogie deflection cylinder;

sealing devices are arranged on the two first pistons, so that pressure air or hydraulic oil in the middle chamber is prevented from leaking into the front chamber or the rear chamber;

the front cavity and the rear cavity are both provided with oil ports communicated with the outside;

preferably, the sealing device is a leather cup arranged on the two pistons I, so that pressure relief is effectively prevented.

Furthermore, the opposite surfaces of the two first pistons are provided with protrusions, and the diameters of the protrusions are smaller than the inner diameter of the bogie deflection detection cylinder, so that the phenomenon that air or oil cannot be filled into the middle cavity chamber after the two first pistons are tightly attached is effectively avoided.

Preferably, the projection is an annular projection having an outer diameter smaller than an inner diameter of the bogie deflection detecting cylinder.

Furthermore, two piston rods of the bogie deflection detection cylinder are respectively provided with a third piston, a sealing ring is arranged on a contact surface between the third piston and the inner wall of the bogie deflection detection cylinder, the front cavity is divided into a front cavity and an isolation cavity by the third piston, the rear cavity is divided into a rear cavity and an isolation cavity by the third piston, and two air outlets are arranged in the two isolation cavities; hydraulic oil or pressure air in the middle cavity is effectively prevented from entering the front cavity or the rear cavity by arranging the isolation cavity, and back pressure generated by movement of the third piston is eliminated by arranging the second air outlet.

Compared with the prior art, the invention has the beneficial effects that: 1. when the vehicle is in a curve, the two piston rods extend out to abut against the limiting plates, and when the vehicle body and the bogie are in the curve, the distances from the heads of the two piston rods to the limiting plates are different, so that the strokes of the two piston rods are different, the amount of hydraulic oil injected into the two positioning piston cylinders is different, the extending strokes of push rods in the positioning piston cylinders are different, and further the adjustment of the position of the car coupler is realized.

2. The hydraulic coupler is detected through the piston rod, the hydraulic oil in the front cavity and the hydraulic oil in the rear cavity are compressed through the third piston, and the oil pressing amount is different due to different extending strokes of the piston rod, so that different driving forces are provided for the position adjusting piston, and the position of the coupler is adjusted.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the truck deflection sensing cylinder of the present invention;

FIG. 3 is a schematic view of the internal structure of the positioning piston cylinder of the present invention;

FIG. 4 is a schematic view of the internal structure of the oil storage bin according to the present invention;

description of reference numerals: 1. a bogie deflection detection cylinder; 2. a piston rod; 3. a pin shaft; 4. a bolster; 5. a side beam; 6. a limiting plate; 7. an oil storage bin; 8. an oil pipe; 9. a limiting column; 10. a return spring; 11. an air inlet pipe; 12. a three-way electromagnetic valve; 13. an air storage cylinder; 14. positioning a piston cylinder; 15. a push rod; 16. a car coupler; 17. a piston I; 18. an isolation chamber; 19. a front chamber; 20. a rear chamber; 21. a middle chamber; 22. a leather cup; 23. a piston number three; 24. a second air outlet; 25. an oil port; 26. a boss portion; 27. a piston II; 28. a return spring; 29. a first air outlet; 30. a bolt; 31. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2: a bogie deflection detection cylinder 1 is internally provided with two first pistons 17, the bogie deflection detection cylinder 1 is divided into a front chamber 19, a middle chamber 21 and a rear chamber 20 through the two first pistons 17, piston rods 2 are respectively arranged on the two first pistons 17, one piston rod 2 extends out of the bogie deflection detection cylinder 1 through the rear chamber 20, the other piston rod 2 extends out of the bogie deflection detection cylinder 1 from the front chamber 19, and sealing rings are respectively arranged between the two piston rods 2 and the bogie deflection cylinder;

and sealing means are mounted on the two pistons 17 to prevent the pressurized air or hydraulic oil in the middle chamber 21 from leaking into the front chamber 19 or the rear chamber 20;

the front chamber 19 and the rear chamber 20 are both provided with oil ports 25 communicated with the outside;

preferably, the sealing device is a leather cup 22 arranged on the two pistons 17I, so that pressure relief is effectively prevented.

Furthermore, the opposite surfaces of the two first pistons 17 are provided with the protruding portions 26, and the diameter of each protruding portion 26 is smaller than the inner diameter of the bogie deflection detection cylinder 1, so that the problem that air cannot be filled or oil cannot be filled into the middle cavity 21 after the two first pistons 17 are tightly attached is effectively avoided.

Preferably, the projection 26 is an annular projection having an outer diameter smaller than an inner diameter of the truck deflection detecting cylinder 1.

Furthermore, a third piston 23 is mounted on each of the two piston rods 2 of the bogie deflection detection cylinder 1, a sealing ring is mounted on a contact surface between the third piston 23 and the inner wall of the bogie deflection detection cylinder 1, the front chamber 19 is divided into a front chamber 19 and an isolation chamber 18 by the third piston 23, the rear chamber 20 is divided into a rear chamber 20 and the isolation chamber 18 by the third piston 23, and a second air outlet 24 is arranged in each of the two isolation chambers 18; the provision of the separation chamber 18 effectively prevents hydraulic oil or pressurized air in the middle chamber 21 from entering the front chamber 19 or the rear chamber 20.

The operation and application of the present invention will be fully understood by those skilled in the art from the following detailed description of an automatic stepless adjusting device for a coupler position of a railway rolling stock.

See fig. 1 to 4; the automatic stepless adjusting device for the coupler position of the railway locomotive car coupler comprises two limiting plates 6 arranged below a car body through a pin shaft 3 and a bogie deflection detection cylinder 1 arranged below the car body and positioned between the two limiting plates 6, wherein the limiting plates 6 can rotate around the pin shaft 3, and two limiting columns 9 are arranged on a bogie, so that when two piston rods 2 respectively push one ends of the limiting plates 6 on the affiliated sides to rotate, the other ends of the limiting plates 6 can be in contact with the limiting columns 9; the two limiting plates 6 are respectively provided with a resetting device which can retract along with the piston rod 2;

the bogie deflection detection cylinder 1 is internally provided with two first pistons 17, the bogie deflection detection cylinder 1 is divided into a front chamber 19, a middle chamber 21 and a rear chamber 20 by the two first pistons 17, piston rods 2 are respectively arranged on the two first pistons 17, one piston rod 2 extends out of the bogie deflection detection cylinder 1 through the rear chamber 20, the other piston rod 2 extends out of the bogie deflection detection cylinder 1 from the front chamber 19, and sealing rings are respectively arranged between the two piston rods 2 and the bogie deflection detection cylinder 1;

and sealing means are mounted on the two pistons 17, preventing the air pressure in the middle chamber 21 from leaking into the front chamber 19 or the rear chamber 20;

after extending out, the two piston rods 2 of the bogie deflection detection cylinder 1 can be contacted with one end of the limiting plate 6 on the side of the bogie deflection detection cylinder;

the middle chamber 21 is connected with an air inlet pipe 11, the air inlet pipe 11 is connected with an air storage cylinder 13, and a three-way electromagnetic valve 12 with one end communicated with the outside is arranged on the air inlet pipe 11;

hydraulic oil is stored in the front cavity 19 and the rear cavity 20, and is connected with oil pipes 8 through oil ports 25, the two oil pipes 8 are respectively connected with rear cavities of two positioning piston cylinders 14, the two positioning piston cylinders 14 are installed on two sides of a coupler 16 at the end part of the car body, the positioning piston cylinders 14 are divided into a front cavity and a rear cavity through second pistons 27, push rods 15 are installed on the second pistons 27, the push rods 15 of the two positioning piston cylinders 14 extend out of the front cavities of the positioning piston cylinders 14 and can be contacted with the coupler 16 after extending out, return springs 28 are sleeved on the push rods 15, and first air outlets 29 are arranged in the rear cavities;

the oil port 25 at the end A2 is connected to the rear chamber of the positioning piston cylinder 14 at the end B1 through an oil pipe 8, and the oil port 25 at the end B2 is connected to the rear chamber of the positioning piston cylinder 14 at the end A1 through the oil pipe 8.

The sealing device is a leather cup 22 arranged on the first piston 17, so that pressure relief is effectively prevented.

The opposite surfaces of the two first pistons 17 are provided with the protruding portions 26, and the maximum diameter of the protruding portions 26 is smaller than the inner diameter of the bogie deflection detection cylinder 1, so that the phenomenon that air cannot be filled into the middle cavity 21 due to the fact that the two first pistons 17 are tightly attached is effectively avoided.

The two piston rods 2 of the bogie deflection detection cylinder 1 are respectively provided with a third piston 23, the third piston 23 divides a front chamber 19 into a front chamber 19 and an isolation chamber 18, the third piston 23 divides a rear chamber 20 into a rear chamber 20 and an isolation chamber 18, and two air outlets 24 are arranged in the two isolation chambers 18; the oil-gas mixing is effectively avoided by providing the isolation chamber 18.

All install oil storage bin 7 on two oil pipes 8, be provided with the oil supply mouth on the oil storage bin 7, bolt 30 passes lock nut 31 and gets into the oil supply mouth, with the oil supply mouth screw-thread fit, 7 outer walls in oil storage bin are hugged closely to lock nut 31 to install the sealing washer between

lock nut

31 and 7 outer walls in oil storage bin, prevent that hydraulic oil from mending the oil supply mouth and leak, when needing to mend oil, only need with bolt 30 twist out can, the surface in oil storage bin 7 is provided with the oil level table, be used for observing inside oil level. Preferably, the distance from one end of the limiting plate 6 far away from the limiting column 9 to the pin shaft 3 is greater than the distance from one end of the limiting plate 6 close to the limiting column 9 to the pin shaft 3.

The reset device is a reset spring 10 arranged between one ends of the two limit plates 6 far away from the limit columns 8 on the sides of the two limit plates;

resetting means still can be for including the spout that sets up on the 6 length direction of edge limiting plate, the spout can cooperate with the slip table of 2 heads of piston rod, and can prevent that the slip table from breaking away from the stop gear of spout, thereby make the slip table of 2 heads of piston rod can slide in the spout when promoting the stop plate 6 and remove, and then promotion limiting plate 6 that can be smooth rotates around round pin axle 3, simultaneously because stop gear's effect, effectually avoided piston rod 2 when returning back, piston rod 2 breaks away from with limiting plate 6, lead to unable bringing back initial position with limiting plate 6.

The limiting mechanism can adopt a matching mode of a T-shaped sliding groove and a T-shaped sliding table.

And balls are arranged on the T-shaped sliding groove or the T-shaped sliding table and along the traveling direction of the T-shaped sliding table, so that the sliding friction force of the T-shaped sliding groove or the T-shaped sliding table is reduced.

The following describes the specific operation process of the present invention in detail when the vehicle is turning left (with the coupler direction as the front end):

controlling the three-way electromagnetic valve 12 to be electrified to be in an electrified state, enabling pressure air in the air storage cylinder 13 to enter a middle cavity 21 of the bogie deflection detection cylinder 1 through the air inlet pipe 11, pushing the two first pistons 17 to move backwards to enable the two piston rods 2 to extend out to press one end of the limiting plate 6, enabling the limiting plate 6 to rotate around the pin shaft 3 to enable the other end of the limiting plate 6 to be in contact with the limiting column 9, so that the piston rods 2 cannot extend out continuously, and compressing hydraulic oil in the front cavity 19 while the piston rods 2 extend out to enable the push rods 15 of the positioning piston cylinders 14 at the A1 end and the B1 end to extend out;

because the vehicle turns left, the distance between the limit plate 6 and the limit column 9 at the end A2 is larger than the distance between the limit plate 6 and the limit column 9 at the end B2, the stroke of the piston rod 2 at the end A2 is larger than the stroke of the piston rod 2 at the end B2, so that the extension amount of the push rod 15 of the positioning piston cylinder 14 at the end B1 is larger than that of the push rod 15 of the positioning piston cylinder 14 at the end A1, the coupler 16 is deflected to the left, at the moment, the push rod 15 of the positioning piston cylinder 14 at the end B1 pushes the coupler 16, and the push rod 15 of the positioning piston cylinder 14 at the end A1 limits the coupler 16.

After the car coupler 16 is adjusted in place, the three-way electromagnetic valve 12 is controlled to be powered off, the middle cavity 21 of the bogie deflection detection cylinder 1 is communicated with the outside through the air inlet pipe 11, pressure air in the middle cavity 21 is exhausted into the atmosphere, the positioning piston cylinders 14 on two sides of the car coupler 16 retract under the action of spring force, hydraulic oil is respectively pressed back to the rear cavity 20 and the front cavity 19 of the bogie deflection detection cylinder 1, meanwhile, the two limiting plates 6 return to the initial positions through the action of the return spring 10 or the matching of the T-shaped sliding table and the T-shaped sliding groove, meanwhile, the two piston rods 2 of the bogie deflection detection cylinder 1 retract until the protruding parts 26 of the two pistons 17 are contacted, and at the moment, the whole device returns to the original position.

When the vehicle is in a straight line state, the coupler 16 is adjusted to be centered according to the principle.

When the vehicle is in a right-turning state, the coupler 16 is adjusted to be right-biased by applying the principle.

In the above description of the automatic stepless adjusting device for coupler position of railway locomotive car coupler, the middle chamber 21 is filled with pressurized air, but the invention is not limited thereto, and pressurized hydraulic oil may also be filled.

Based on the above description of an automatic stepless adjusting device for a coupler position of a railway rolling stock, a person skilled in the art can understand that the present invention functions in an automatic stepless adjusting device for a coupler position of a railway rolling stock, and certainly, the present invention is not exclusively applicable to an automatic stepless adjusting device for a coupler position of a railway rolling stock, and other mechanical devices can solve some technical problems through the present invention, and the present invention can also be applied.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A bogie deflection detection cylinder characterized by: the bogie deflection detection device is characterized in that two first pistons (17) are arranged in the bogie deflection detection cylinder (1), the bogie deflection detection cylinder (1) is divided into a front cavity (19), a middle cavity (21) and a rear cavity (20) through the two first pistons (17), piston rods (2) are mounted on the two first pistons (17), one piston rod (2) extends out of the bogie deflection detection cylinder (1) through the rear cavity (20), the other piston rod (2) extends out of the bogie deflection detection cylinder (1) from the front cavity (19), and sealing rings are mounted between the two piston rods (2) and the bogie deflection cylinder;

and sealing devices are arranged on the two first pistons (17) to prevent pressure air or hydraulic oil in the middle chamber (21) from leaking into the front chamber (19) or the rear chamber (20);

the front chamber (19) and the rear chamber (20) are both provided with oil ports (25) communicated with the outside.

2. A truck deflection sensing cylinder as defined in claim 1 wherein: the sealing device is a leather cup (22) arranged on two pistons (17).

3. A truck deflection sensing cylinder as defined in claim 1 wherein: and the opposite surfaces of the two first pistons (17) are respectively provided with a convex part (26), and the diameter of each convex part (26) is smaller than the inner diameter of the bogie deflection detection cylinder (1).

4. A truck deflection sensing cylinder according to claim 3, wherein: the protruding portion (26) is an annular protrusion, and the outer diameter of the annular protrusion is smaller than the inner diameter of the bogie deflection detection cylinder (1).

5. The truck deflection sensing cylinder according to any one of claims 1 to 4, wherein: all install No. three piston (23) on two piston rod (2) of bogie deflection detection jar (1), install the sealing washer on the contact surface of No. three piston (23) and bogie deflection detection jar (1) inner wall, No. three piston (23) divide into anterior cavity (19) and keep apart cavity (18) with anterior cavity (19), and No. three piston (23) divide into rear portion cavity (20) and keep apart cavity (18) with rear portion cavity (20), and two be provided with No. two exhaust outlet (24) in keeping apart cavity (18).