CN210391162U - Side buffer, side buffer system and railway vehicle - Google Patents

Abstract

The utility model discloses a side buffer, side buffer system and rail vehicle, wherein, this side buffer includes: the base assembly is arranged at one end of the vehicle body; the end cover assembly comprises an end cover and a first cylinder which are respectively and independently manufactured, the end cover is connected with the first cylinder, and the first cylinder is sleeved on the base assembly and forms an installation cavity with the base assembly in a surrounding manner; the first elastic element is arranged in the mounting cavity; and the limiting mechanism is connected with the end cover assembly and used for limiting the installation position of the end cover assembly relative to the base assembly, and two ends of the first elastic element are respectively contacted with the end cover and the base assembly. By adopting the structure, the end cover and the first cylinder are parts with relatively simple structures, and the conventional die is used during manufacturing, so that the design ensures that the manufacturing process does not need a special die, only needs the conventional die and has lower manufacturing cost than the special die, thereby reducing the manufacturing cost, simultaneously, the conventional die has no complex cavity, the molten steel flows smoothly and the casting quality is easy to ensure.

Description

Side buffer, side buffer system and railway vehicle

Technical Field

The utility model relates to a railway vehicle technical field, concretely relates to side buffer, side buffer system and railway vehicle.

Background

Railway freight as a clean and efficient transportation organization mode has great advantages in the aspect of freight circulation, and the demand of railway freight in China is increasing, so that the demand of railway vehicles is also increasing. Side bumpers are components on railway cars and are often provided on both lateral sides of the end of the car for transmitting and cushioning impact forces between the cars.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of a side buffer in the prior art, and fig. 2 is an exploded view of fig. 1.

As shown in fig. 1 and 2, the side buffer includes a pull rod 01, an end cover assembly 02, a spring 03, a base assembly 04 and a nut 05, wherein the end cover assembly 02 includes an end cover and a first cylinder mounted on the end cover, and the base assembly 04 includes a base and a second cylinder mounted on the base.

Therefore, how to provide a solution to overcome or alleviate the above drawbacks remains a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a side buffer, side buffer system and rail vehicle, wherein, this side buffer's end cover is constituteed and is adopted split type structure, need not special mould, and manufacturing cost is lower relatively, and the assurance is also changeed to the casting quality.

The utility model provides a side buffer, include: the base assembly is arranged at one end of the vehicle body; the end cover assembly comprises an end cover and a first barrel which are respectively and independently manufactured, the end cover is connected with the first barrel, and the first barrel is sleeved on the base assembly and forms an installation cavity with the base assembly in a surrounding mode; the first elastic element is arranged in the mounting cavity; and the limiting mechanism is connected with the end cover assembly and used for limiting the installation position of the end cover assembly relative to the base assembly, and two ends of the first elastic element are respectively contacted with the end cover and the base assembly.

Adopt this kind of structure, the end cover is constituteed to split type structure, including end cover and first barrel, wherein, end cover and first barrel are the part that the structure is simple relatively, use conventional mould during the manufacturing can, assemble the end cover and the first barrel that make after the completion again, obtain the end cover of required structure complicacy relatively and constitute, this kind of design, make need not use special mould in the manufacturing process, only need use conventional mould can, conventional mould cost is less than special mould again, therefore, manufacturing cost is reduced, and simultaneously, produce the end cover, no complicated die cavity in the conventional mould of first barrel, the flow of molten steel is more smooth and easy, it guarantees the casting quality to change.

Optionally, the limiting mechanism includes a pull rod and a locking member, the pull rod penetrates through the end cover and the end beam of the vehicle body, the head of the pull rod abuts against the end cover, and the locking member is connected with the tail of the pull rod and can abut against the end beam directly or indirectly.

Optionally, the locking member is a nut; the anti-dropping device is mounted on the pull rod and used for preventing the nut from dropping.

Optionally, a second elastic element is further included, the second elastic element being disposed between the end beam and the locking member; a gasket is arranged between the second elastic element and the end beam and/or between the second elastic element and the locking element.

Optionally, the end cover is provided with a through hole of the pull rod, the through hole comprises a first hole section and a second hole section along the direction close to the first cylinder, the second hole section is a tapered hole with a gradually reduced hole diameter along the direction close to the first cylinder, and the hole diameter of the first hole section is larger than or equal to the diameter of the large-diameter end of the second hole section; at least the peripheral wall of the head part close to the axial end part of the first cylinder body is a conical wall surface matched with the conical hole.

Optionally, the end cap plug is mounted on the first hole section and can abut against the head to press the head against the second hole section.

Optionally, the base assembly comprises a base and a second cylinder which are separately manufactured, the base is connected with the second cylinder, and the base assembly is connected with the vehicle body through the base.

Optionally, the end cover is provided with a first insertion groove, and the connecting end part of the first cylinder and the end cover is inserted into the first insertion groove and is fixed by welding; the base is provided with a second inserting groove, and the second barrel and the connecting end part of the base are inserted into the second inserting groove and are fixed through welding.

Optionally, the first barrel includes a first plug part and a first body part, the outer diameter of the first plug part is smaller than the first body part and is matched with the first plug groove, and the first body part is connected with the first plug part through a first tapered part; the second barrel comprises a second inserting part and a second body part, the outer diameter of the second inserting part is smaller than that of the second body part and is matched with the second inserting groove, and the second body part is connected with the second inserting part through a second conical part.

Optionally, the cylinder walls of the first cylinder and the second cylinder are provided with mounting holes; after the installation is finished, the first barrel body and the second barrel body which are sleeved with each other are provided with plugging pieces in the installation holes of the outer barrel bodies.

The utility model also provides a side buffer, include: the base assembly comprises a base and a second cylinder which are separately manufactured, the base is connected with the second cylinder, and the base assembly is connected with the vehicle body through the base; the end cover assembly and the base assembly enclose to form an installation cavity; the first elastic element is arranged in the mounting cavity; and the limiting mechanism is connected with the end cover assembly and used for limiting the installation position of the end cover assembly relative to the base assembly, and two ends of the first elastic element are respectively contacted with the end cover assembly and the base.

Adopt this kind of structure, the base is constituteed to split type structure, including base and second barrel, wherein, base and second barrel are the part that the structure is simple relatively, use conventional mould during the manufacturing can, assemble the base and the second barrel that make after the manufacturing is accomplished again, obtain the base constitution that required structure is complicated relatively, this kind of design, make need not use special mould in the manufacturing process, only need use conventional mould can, conventional mould cost is less than special mould again, therefore, manufacturing cost is reduced, and simultaneously, the production base, no complicated die cavity in the conventional mould of second barrel, the flow of molten steel is more smooth and easy, it guarantees casting quality to change.

The utility model provides a side buffer system, including two butt joint side buffers, at least one the side buffer be above arbitrary one the side buffer.

Since the side buffer has the above technical effects, the side buffering system including the side buffer also has similar technical effects, and therefore, the detailed description thereof is omitted here.

The utility model provides a railway vehicle, including a plurality of automobile bodies, adjacent two be provided with side buffer system between the automobile body, side buffer system is above arbitrary any side buffer system.

Since the car bodies of the railway car have the side bumper systems and the side bumpers, the technical effects similar to those of the side bumpers are also provided, and thus, the detailed description is omitted.

Drawings

FIG. 1 is a schematic diagram of a side buffer according to an embodiment of the prior art;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of an embodiment of a side buffer provided in the present invention;

FIG. 4 is a schematic structural view of the end cap assembly of FIG. 3;

FIG. 5 is an enlarged view of a portion of the connection between the end cap and the first barrel of FIG. 4;

FIG. 6 is a schematic structural view of the base of FIG. 3;

FIG. 7 is an enlarged view of a portion of the base and the second barrel joint of FIG. 6;

FIG. 8 is a front view of the end cap block of FIG. 3;

fig. 9 is a side view of the end cap block of fig. 3.

The reference numerals in fig. 1-2 are illustrated as follows:

01 pull rod, 02 end cover assembly, 03 spring, 04 base assembly and 05 nut.

The reference numerals in fig. 3-9 are illustrated as follows:

1, an end cover assembly, 11, 111 a first plug-in groove, 112 a first hole section, 113 a second hole section, 12 a first cylinder, 122 a first plug-in part, 123 a first conical part and 124 a first body part;

2, a base assembly, 21 a base, 211 a second plug-in groove, 22 a second cylinder, 222 a second plug-in part, 223 a second conical part and 224 a second body part;

3 a pull rod, 31 a first gasket, 32 a second elastic element, 33 a second gasket, 34 a locking piece and 35 a release-proof piece;

4 end cover block, 41 cover part, 42 contact part;

5 a first elastic element;

6, a vehicle body end beam;

7 a closure.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As used herein, the term "plurality" refers to an indefinite number of plural, usually more than two; and when the term "plurality" is used to indicate a number of elements, it does not necessarily indicate a quantitative relationship between such elements.

The terms "first", "second", and the like, as used herein are used for convenience only to describe two or more structures or components that are the same or similar in structure, and do not denote any particular limitation on the order.

Referring to fig. 3-9, fig. 3 is a schematic structural diagram of a side buffer according to an embodiment of the present invention; FIG. 4 is a schematic structural view of the end cap assembly of FIG. 3; FIG. 5 is an enlarged view of a portion of the connection between the end cap and the first barrel of FIG. 4; FIG. 6 is a schematic structural view of the base of FIG. 3; FIG. 7 is an enlarged view of a portion of the base and the second barrel joint of FIG. 6; FIG. 8 is a front view of the end cap block of FIG. 3; fig. 9 is a side view of the end cap block of fig. 3.

Example one

As shown in fig. 3, the present invention provides a side buffer, comprising: the base assembly 2 is arranged at one end of the vehicle body; the end cover assembly 1 comprises an end cover 11 and a first barrel 12 which are respectively and independently manufactured, wherein the end cover 11 is connected with the first barrel 12, and the first barrel 12 is sleeved on the base assembly 2 and forms an installation cavity with the base assembly 2 in a surrounding manner; a first elastic element 5 mounted in the mounting cavity; and the limiting mechanism is connected with the end cover assembly 1 and used for limiting the installation position of the end cover assembly 1 relative to the base assembly 2, and two ends of the first elastic element 5 are respectively contacted with the end cover 11 and the base assembly 2.

Adopt this kind of structure, end cover constitution 1 is split type structure, including end cover 11 and first barrel 12, wherein, end cover 11 and first barrel 12 are the part of structure simple relatively, use conventional mould during the manufacturing can, assemble end cover 11 and first barrel 12 that make after the completion of making again, obtain the end cover constitution 1 that required structure is complicated relatively, this kind of design, make need not use special mould in the manufacturing process, only need use conventional mould can, conventional mould cost is less than special mould again, therefore, manufacturing cost is reduced, and simultaneously, produce end cover 11, no complicated die cavity in the conventional mould of first barrel 12, the flow of molten steel is more smooth and easy, it guarantees casting quality more easily.

In practical work, the side buffer is arranged on one vehicle body, for two adjacent vehicle bodies, two side buffers which are butted with each other are required to be used as an integral side buffer system, at the moment, under the action of longitudinal force of a train, the end cover assembly 1 can move in a direction close to or far away from the base assembly 2, and the first elastic element 5 is arranged between the end cover assembly 1 and the base assembly 2 and used for relieving impact force between the adjacent vehicle bodies. Here, the embodiment of the present invention does not limit the specific kind of the first elastic element 5, and when implemented, a person skilled in the art can set the first elastic element according to actual needs; in the view of the drawings, the first elastic element 5 may be a spring, and may also be a common elastic body such as an elastic ball.

In a specific embodiment, as shown in fig. 3, the limiting mechanism may include a pull rod 3 and a locking member 34, the pull rod 3 passes through the end cover 11 and the vehicle body end beam 6, and abuts against the end cover 11 with a head portion of the pull rod 3, and the locking member 34 may be connected to a tail portion of the pull rod 3 and can abut against the vehicle body end beam 6 directly or indirectly. So set up, through the cooperation of locking piece 34 and automobile body end beam 6 and the cooperation of pull rod 3 head and end cover 11, can constitute 1, the base is constituteed 2 to the end cover that cup joints mutually and be connected to because the elastic support of first elastic element 5, end cover constitution 1 can keep certain interval with base constitution 2.

Moreover, because the end cover 11 is a wearing part, the end cover 11 and the pull rod 3 are designed to be separated, so that when the end cover 11 is seriously worn, the end cover 11 and the pull rod 3 can be easily separated, and a new end cover 11 can be replaced for use. In addition, in the scheme, the pull rod 3 is in plug fit with the end cover 11, so that the installation process is simpler.

Of course, the pull rod 3 and the end cover 11 can also be of an integrated structure, the pull rod 3 can be fixedly connected to the end cover 11 through welding and other modes, and at the moment, a fixedly connecting structure between the pull rod 3 and the end cover 11 in the following text can be omitted, so that the complexity of equipment can be reduced.

The locking element 34 can be embodied as a nut, in which case the rod section of the tie rod 3 passing through the body end beam 6 can also be provided with an external thread for cooperation with the nut. Of course, the locking member 34 may be a pin or other type of locking member, so long as it can ensure effective locking of the rear end of the tie rod 3 with the body end beam 6.

Taking the locking member 34 as an example of a nut, the nut may loosen due to constant vibration during operation of the railway car. In this regard, a release preventing member 35 may be further provided, and the release preventing member 35 may be mounted on the drawbar 3 and may be abutted against the nut to prevent the nut from being loosened by vibration of the vehicle body as much as possible.

In the solution of fig. 3, the anti-release element 35 can be a pin radially inserted into the pull rod 3, and a segment or head of the pin can be pressed against the nut to prevent the nut from being released from the pull rod 3 from the rear of the pull rod 3. Besides, the anti-slip element 35 may be a locknut, and the installation position thereof may be the same as the aforementioned pin; alternatively, the stopper 35 may be a stopper provided in the pull rod 3, and the stopper may also have a stopper effect.

Further, a second elastic element 32 can be arranged between the vehicle body end beam 6 and the locking piece 34, the second elastic element 32 can avoid the direct contact between the locking piece 34 and the vehicle body end beam 6, further the direct impact between the locking piece 34 and the vehicle body end beam 6 caused by the displacement of the pull rod 3 in the use process of the side buffer can be prevented, the vehicle body end beam 6 and the locking piece 34 can be protected, and the service lives of the vehicle body end beam 6 and the locking piece 34 can be prolonged. In fact, the reduction of the impact force to which the locking member 34 is subjected also has a positive effect on the prevention of the locking member 34 from coming off.

The second elastic member 32 may be a washer made of a flexible material such as rubber to cushion the force between the locking member 34 and the end beam 6, or the second elastic member 32 may be a spring directly, which can also perform a similar function.

A first washer 31 may be provided between the second resilient member 32 and the body end beam 6, and/or a second washer 33 may be provided between the second resilient member 32 and the locking member 34.

The first gasket 31 and the second gasket 33 are provided to protect the second elastic member 32, wherein the first gasket 31 is provided to prevent the second elastic member 32 from directly contacting the surface of the vehicle body end beam 6, and to contact the surface of the first gasket 31 which is more flat; the second gasket 33 is provided so that the second elastic member 32 does not directly contact the locking member 34, but the largest pressing contact area is achieved by contact with the second gasket 33, thereby reducing the possibility that the second elastic member 32 is damaged by excessive local pressure. Of course, the first gasket 31 and the second gasket 33 may not be provided, and thus the function of the second elastic element 32 is not affected.

As shown in fig. 4, the end cap 11 may be provided with a through hole of the pull rod 3, the through hole may be divided into a first hole section 112 and a second hole section 113 connected in sequence along the direction close to the first cylinder 12, the second hole section 113 is a tapered hole with a gradually decreasing hole diameter along the direction close to the first cylinder 12, and the hole diameter of the first hole section 112 is greater than or equal to the diameter of the large-diameter end of the second hole section 113; at least the peripheral wall of the head of the pull rod 3 close to the axial end of the first cylinder 12 is a tapered wall surface matched with the tapered hole.

So set up, the toper wall of 3 heads of pull rod can cooperate with the bell mouth on the end cover 11, can realize pull rod 3 with the centering that passes the hole and 3 heads of pull rod with the chucking that passes the hole, above-mentioned chucking is for restricting the pull rod 3 along the displacement on the direction that is close to first barrel 12.

It will be appreciated that the essence of the above solution is that the head of the drawbar 3 has a tapered wall surface which fits into the tapered hole in the end cap 11, and it is not required that the head of the drawbar 3 is entirely tapered, for example, the head of the drawbar 3 may be divided into two sections in the axial direction, wherein one section adjacent to the first cylinder 12 may be a tapered section to form a tapered wall surface which fits into the tapered hole, and the other section may be a cylinder of circular, square or other shape. Of course, the head of the pull rod 3 may also be designed to be conical in its entirety, in which case the structure of the head of the pull rod 3 can be seen in fig. 3.

In fact, the second hole section 113 may not be configured as a tapered hole, for example, the second hole section 113 may be a constant diameter hole, and the diameter of the second hole section 113 may be smaller than the first hole section 112 and match with the outer diameter of the rod portion of the pull rod 3, a step surface may be formed between the first hole section 112 and the second hole section 113, and the head of the pull rod 3 may be located in the first hole section 112 and may abut against the step surface, so that the connection between the pull rod 3 and the end cover 11 may also be achieved.

Or, the second hole section 113 may be a stepped hole, and in the direction close to the first cylinder 12, the second hole section 113 may be divided into a large-diameter hole portion and a small-diameter hole portion which are connected in sequence, the head portion of the pull rod 3 may be a head portion having a circular or square cross section, and the like, and the outer diameter of the rod portion of the pull rod 3 may be the same as the diameter of the small-diameter hole portion, and with this design, the head portion of the pull rod 3 may abut against the stepped surface between the large-diameter hole portion and the small-diameter hole portion.

When the pull rod 3 is fixed, an end cover plug 4 can be used, and the end cover plug 4 can be arranged in the through hole and is abutted against the head of the pull rod 3 so as to limit the position of the head of the pull rod 3. Specifically, as shown in fig. 3, the end cap plug 4 may be mounted to the first bore section 112 and extend into the second bore section 113 to abut the head of the drawbar 3.

With reference to fig. 8 and 9, in a direction close to the first cylinder 12, the end cap 4 may be divided into a cover portion 41 and an abutting portion 42, an outer edge of an end surface of the cover portion 41 away from the abutting portion 42 may be provided with a chamfered structure, a maximum diameter of the cover portion 41 is the same as a bore diameter of the first bore section 112 of the end cap 11, and when the end cap 4 is installed in the first bore section 112, the chamfered structure and a bore wall of the first bore section 112 may enclose a filling gap of solder so as to facilitate filling of the solder; the abutment 42 is intended to abut against the head of the drawbar 3.

The abutting portion 42 has a boss structure, and the cross-sectional shape thereof is not limited herein, and may be square, circular, triangular, or the like; the number of the abutting portions 42 is not limited, and may be one, a plurality of, or the like, as is specifically combined with the actual case.

After the end cover plug 4 is arranged, the end face of the cover part 41 of the end cover plug 4 and the end face of the end cover 11 in the direction far away from the first cylinder 12 can be flush, at the moment, the end cover plug 4 and the end cover 11 are connected in a welding mode, the welding flux is filled in the chamfer of the cover part 41 of the end cover plug 4, the design ensures the integrated structure of the end cover 11 and the end cover plug 4 after welding connection, the end face in the direction far away from the first cylinder 12 is still a flat end face, and the side buffer is convenient to adapt to the side buffer on the other side.

The design of the end cover plug 4 limits the displacement of the pull rod 3, and meanwhile, the end cover plug is not fixedly connected with the pull rod 3, so that the convenience of replacing the pull rod 3 is not influenced.

In addition, the end cover plug 4 may not be provided, and at this time, after the head of the pull rod 3 abuts against the end cover 11, the head and the end cover can be directly welded together, which is also an option in practical application.

As shown in fig. 4, the end cap 11 has a general structure in which the middle portion is thick and the edge portion is thin, and this design takes into consideration that the surface of the end cap 11 in the direction away from the first cylinder 12 first starts to be worn when the side buffer is normally operated, so that the design in which the middle portion is thick and the two sides are thin can increase the durability of the end cap 11. Due to the design of the end cover plug 4, when the end cover 11 is consumed due to friction, the end cover plug 4 is consumed instead of the head of the pull rod 3, so that the connection and matching of the pull rod 3 and the end cover 11 cannot be influenced, and the connection stability of the pull rod 3 is further ensured.

In addition, the design that the middle part of the end cover 11 is thick and the edge part is thin enables the two opposite side buffers to be in good butt joint fit through the inclined surfaces even if the two side buffers are not well centered when being matched with each other, and then the buffering effect is achieved.

As shown in fig. 3, the base assembly 2 may include a base 21 and a second cylinder 22, which are separately manufactured, the base 21 may be connected to the second cylinder 22, and the base assembly 2 may be connected to the vehicle body through the base 21.

This kind of design includes base 21 and second barrel 22, wherein base 21 and second barrel 22 are the simpler part of structure, use conventional mould during manufacturing can, assemble base 21 and second barrel 22 made after the completion of making, obtain required comparatively complicated base and constitute 2, this kind of design, it need not use special mould in making the process, only need use to above-mentioned simple part the conventional mould can, conventional mould cost is less than special mould again, therefore manufacturing cost is reduced, no complicated die cavity in the conventional mould simultaneously, the flow of molten steel is more smooth and easy, it guarantees casting quality to change.

In addition, the base assembly 2 may only include the second cylinder 22, the second cylinder 22 may be directly and fixedly connected to the vehicle body, and the fixed connection manner may be welding or bolt connection, and the design manner greatly simplifies the structure of the base assembly 2 and also simplifies the installation steps of the side bumper.

As shown in fig. 3-7, the end cap 11 is provided with a first insertion groove 111, and the connection end portion of the first cylinder 12 and the end cap 11 is inserted into the first insertion groove 111 and fixed by welding; the base 21 is provided with a second inserting groove 211, and the connecting end portion of the second cylinder 22 and the base 21 is inserted into the second inserting groove 211 and fixed by welding.

The first barrel 12 comprises a first plug part 122 and a first body part 124, the outer diameter of the first plug part 122 is smaller than that of the first body part 124, and the first plug part 122 is matched with the first plug groove 111, and the first body part 124 is connected with the first plug part 122 through a first conical part 123; the second cylinder 22 includes a second socket portion 222 and a second body portion 224, the second socket portion 222 has an outer diameter smaller than that of the second body portion 224 and is adapted to the second socket groove 211, and the second body portion 224 is connected to the second socket portion 222 through a second tapered portion 223.

The term "fit" refers to that the shape and size of the corresponding mating part are substantially the same as those of the corresponding slot, taking the first mating part 122 and the first mating slot 111 as an example, the length of the first mating part 122 may be the same as the depth of the first mating slot 111, and the outer diameter of the first mating part 122 may be the same as the inner diameter of the first mating slot 111, and the shapes of the two are not limited to circular fitting, but may also be other shapes such as square.

The first insertion-connection part 122 and the second insertion-connection part 222 may be provided with guiding parts, which may be specifically chamfered, so as to facilitate the insertion-connection of the first insertion-connection part 122 and the first insertion-connection groove 111 and the insertion-connection of the second insertion-connection part 222 and the second insertion-connection groove 211.

In an assembled state, the end surfaces of the first conical part 123 and the end cover 11 close to the cylinder 12, the second conical part 223 and the base 21 close to the cylinder 22 can form an annular gap for filling solder in a surrounding manner, so that the solder can be filled conveniently, and after filling, the outer surface of a welding seam and the outer surface of the corresponding cylinder can be basically flush; meanwhile, the welding seam at the joint of the cylinder body is changed from a straight welding seam into a diagonal welding seam, so that the welding connection is firmer.

In addition, other alternative configurations are possible, provided that the basic functional requirements are met, such as: the first taper portion 123 and the second taper portion 223 may not be provided, and only the first insertion-connection groove 111 and the second insertion-connection groove 211 are reserved to be respectively matched with the first insertion-connection portion 122 and the second insertion-connection portion 222, in this case, the outer diameter of the first body portion 124 should be larger than that of the first insertion-connection portion 122, and the outer diameter of the second body portion 224 should be larger than that of the second insertion-connection portion 222; only the first insertion groove 111 and the second insertion groove 211 may be provided, the first barrel 12 is directly matched with the first insertion groove 111, and the second barrel 22 is directly matched with the second insertion groove 211, at this time, the first barrel 12 only includes the first body portion 124, and the outer diameter of the first body portion 124 is the same as the aperture of the first insertion groove 111; the second cylinder 22 includes only the second body 224, and the outer diameter of the second body 224 is the same as the bore diameter of the second insertion groove 211.

When the side buffer is installed, the whole structure including the end cover assembly 1 and the pull rod 3 tends to move away from the base assembly 2 under the elastic force of the first elastic element 5, which causes inconvenience in installing and fixing the locking piece 34 on the pull rod 3.

To this end, in the embodiment of the present invention, as shown in fig. 3, a first mounting hole may be formed in the wall of the first cylinder 12, a second mounting hole may be formed in the wall of the second cylinder 22, when installing the side buffer, a force acting in opposite directions may be applied to the sleeved end cover assembly 1 and the base assembly 2 by a field worker directly or with the help of a special tool, so as to overcome the elastic force of the first elastic element 5, and make the first mounting hole and the second mounting hole aligned, then, a positioning component in the form of a shaft, a pin, etc. may be inserted into the aligned first mounting hole and the aligned second mounting hole, due to the limiting effect of the positioning component, the distance between the end cover assembly 1 and the base assembly 2 may not change, so as to install the aforementioned second elastic element 32, the locking piece 34, the anti-falling piece 35, etc.

After the locking member 34, the retaining member 35, and the like are mounted, the positioning member can be taken out, and then the second mounting hole in the second cylinder 22 located outside is sealed by the sealing member 7, wherein the sealing method may be a welding filling sealing method, a pin-welding filling sealing method, or a bolt sealing method, that is, the sealing member 7 may be a solder block, a pin + solder, a bolt, or the like.

The purpose of above-mentioned shutoff is to guarantee to constitute 1 and base by the end cover and constitute 2 and enclose the leakproofness of closing the installation cavity that forms, prevent that impurity such as outside rainwater or fluid from getting into above-mentioned installation cavity inside, influencing the normal work of inside first elastic element 5.

In the scheme of fig. 3, the socket joint matching mode is shown in which the first cylinder 12 is a smaller inner-layer cylinder and the second cylinder 22 is a larger outer-layer cylinder, the matching mode uses the smaller first cylinder 12 as a movable cylinder and uses the larger second cylinder 22 as a fixed cylinder connected with the vehicle body, and the structure is more reasonable.

Of course, under the precondition of meeting the strength and functional requirements, the first cylinder 12 may be an outer-layer cylinder and the second cylinder 22 may be an inner-layer cylinder in a sleeving and fitting manner.

Example two

In addition to the above structure, the present invention also provides a side buffer, comprising:

the base assembly 2 comprises a base 21 and a second cylinder 22 which are separately manufactured, the base 21 is connected with the second cylinder 22, and the base assembly 2 is connected with the vehicle body through the base 21;

the integrated end cover assembly 1 is enclosed with the base assembly 2 to form an installation cavity;

the first elastic element 5 is arranged in the mounting cavity;

and the limiting mechanism is connected with the end cover assembly 1 and used for limiting the installation position of the end cover assembly 1 relative to the base assembly 2, and two ends of the first elastic element 5 are respectively contacted with the end cover assembly 1 and the base 21.

The scheme is characterized in that the base assembly 2 is split, and the end cover assembly 1 is integrally formed. The advantage of the present solution is that the split-type base assembly 2 has the specific contents described in the first embodiment, and therefore, the detailed description is omitted here.

EXAMPLE III

The utility model also provides a side buffer system, including two butt joint side buffers, at least one above-mentioned side buffer does the utility model provides a side buffer.

The side buffer system provided in the first embodiment or the second embodiment is selected as the side buffer system, and since the side buffer has the technical effects as described above, the side buffer system including the side buffer also has similar technical effects, and thus the detailed description thereof is omitted.

Example four

The utility model also provides a railway vehicle, including a plurality of automobile bodies, be provided with above-mentioned side buffer system between the two adjacent automobile bodies.

The railway vehicle adopts the side bumper system provided in the third embodiment, and certainly has the side bumper provided in the first embodiment or the second embodiment, and therefore has similar technical effects to those of the side bumper, and therefore, no further description is given here.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (13)

1. A side buffer, comprising:

the base assembly (2) is arranged at one end of the vehicle body;

the end cover assembly (1) comprises an end cover (11) and a first cylinder body (12) which are separately manufactured, the end cover (11) is connected with the first cylinder body (12), the first cylinder body (12) is sleeved on the base assembly (2) and forms an installation cavity with the base assembly (2) in a surrounding mode;

a first elastic element (5) mounted in the mounting cavity;

and the limiting mechanism is connected with the end cover assembly (1) and used for limiting the installation position of the end cover assembly (1) relative to the base assembly (2), and two ends of the first elastic element (5) are respectively contacted with the end cover (11) and the base assembly (2).

2. A side buffer according to claim 1, wherein the limiting mechanism comprises a pull rod (3) and a locking member (34), the pull rod (3) passes through the end cover (11) and the end beam (6) of the vehicle body, the head part of the pull rod (3) is abutted against the end cover (11), and the locking member (34) is connected with the tail part of the pull rod (3) and can be abutted against the end beam (6) directly or indirectly.

3. A side buffer according to claim 2, characterised in that the locking member (34) is a nut;

the nut anti-falling device is characterized by further comprising an anti-falling part (35), wherein the anti-falling part (35) is installed on the pull rod (3) and used for preventing the nut from falling off.

4. A side buffer according to claim 2, further comprising a second resilient member (32), the second resilient member (32) being disposed between the end beam (6) and the locking member (34);

a gasket is arranged between the second resilient element (32) and the end beam (6) and/or between the second resilient element (32) and the locking member (34).

5. The side bumper according to claim 2, wherein the end cap (11) is provided with a through hole of the pull rod (3), the through hole comprises a first hole section (112) and a second hole section (113) along the direction close to the first cylinder (12), the second hole section (113) is a tapered hole with the hole diameter gradually reduced along the direction close to the first cylinder (12), and the hole diameter of the first hole section (112) is larger than or equal to the diameter of the large-diameter end of the second hole section (113);

at least the peripheral wall of the head part close to the axial end part of the first cylinder body (12) is a conical wall surface matched with the conical hole.

6. A side buffer according to claim 5, further comprising an end cap plug (4), said end cap plug (4) being mounted to said first bore section (112) and being capable of abutting said head to compress said head against said second bore section (113).

7. A side buffer according to any one of claims 1-6, wherein the base assembly (2) comprises a base (21) and a second cylinder (22) which are separately manufactured, the base (21) being connected to the second cylinder (22), and the base assembly (2) being connected to the vehicle body by the base (21).

8. The side buffer according to claim 7, wherein the end cap (11) is provided with a first insertion groove (111), and the connecting end of the first cylinder (12) and the end cap (11) is inserted into the first insertion groove (111) and fixed by welding;

the base (21) is provided with a second inserting groove (211), and the connecting end part of the second cylinder (22) and the base (21) is inserted into the second inserting groove (211) and fixed through welding.

9. The side bumper according to claim 8, wherein the first cylinder (12) includes a first insertion portion (122) and a first body portion (124), the first insertion portion (122) has a smaller outer diameter than the first body portion (124) and is adapted to the first insertion groove (111), and the first body portion (124) is connected to the first insertion portion (122) by a first tapered portion (123);

the second cylinder (22) comprises a second plug part (222) and a second body part (224), the outer diameter of the second plug part (222) is smaller than that of the second body part (224) and is matched with the second plug groove (211), and the second body part (224) is connected with the second plug part (222) through a second conical part (223).

10. The side bumper of claim 7, wherein the cylinder walls of the first cylinder (12) and the second cylinder (22) are provided with mounting holes;

after the installation is finished, the sealing piece (7) is arranged in the mounting hole of the outer-layer barrel body in the first barrel body (12) and the second barrel body (22) which are sleeved with each other.

11. A side buffer, comprising:

the base assembly (2), the base assembly (2) comprises a base (21) and a second cylinder (22) which are separately manufactured, the base (21) is connected with the second cylinder (22), and the base assembly (2) is connected with a vehicle body through the base (21);

the end cover assembly (1) is integrally formed, and the end cover assembly (1) and the base assembly (2) enclose to form an installation cavity;

a first elastic element (5) mounted in the mounting cavity;

and the limiting mechanism is connected with the end cover assembly (1) and used for limiting the installation position of the end cover assembly (1) relative to the base assembly (2), and two ends of the first elastic element (5) are respectively contacted with the end cover assembly (1) and the base (21).

12. A side buffering system comprising two side buffers in abutting relationship, wherein at least one of said side buffers is a side buffer as claimed in any one of claims 1 to 11.

13. A railway vehicle comprising a plurality of vehicle bodies with a side bumper system disposed between adjacent ones of said vehicle bodies, wherein said side bumper system is according to claim 12.

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