CN211818848U - Rail vehicle door hinge - Google Patents

Abstract

The utility model provides a rail vehicle door hinge, which comprises a hinge seat, a hinge plate and a pin shaft, wherein the pin shaft is fixed in a pin shaft hole on the hinge seat; a sinking platform is arranged at one end of the hinge seat, and a first gasket consistent with the height, the cross-sectional shape and the size of the sinking platform is arranged on the sinking platform; the hinge plate is provided with a connecting sleeve, one end of the connecting sleeve is provided with a notch, a second gasket with the shape matched with the notch is arranged on the pin shaft at the notch, the hinge plate is fixed on the pin shaft through the connecting sleeve and rotates along with the pin shaft, and the contact surface of the first gasket and the second gasket is the rotating contact surface between the hinge plate and the hinge seat. The utility model provides a rail vehicle door hinge is convenient for maintain, has improved holistic life to the cost has been saved.

Description

Rail vehicle door hinge

Technical Field

The utility model relates to a rail transit vehicle technical field, more specifically relates to a rail transit vehicle door hinge technical field.

Background

The doors on the railway vehicle are generally in a hinged connection mode, and the doors are generally strong in structure in consideration of the safety of the railway vehicle, so that the general doors are heavy, even if the doors made of aluminum alloy materials are generally over 40Kg in weight, the locomotive of the railway vehicle is mostly in a steel structure in consideration of the fireproof requirement of the vehicle, and the weight of the installed doors is generally over 100 KG; the railway line of China is complex, various environmental conditions exist, the stress state of the hinge is always in a changeable state when a vehicle runs, and the hinge is a part which is easy to damage because the hinge is generally stressed greatly and belongs to heavy load and the number of opening and closing times is frequent; the whole vehicle door is inclined after the hinge is damaged, the stress of the lock system is changed, the lock system is damaged, the door is deformed and fails due to the action of abnormal force on the vehicle door framework structure, and the service life of the vehicle door is seriously influenced; however, the whole hinge is troublesome to replace and high in cost, and the rotating contact surface of the hinge is often damaged, so that the replacement of the whole hinge is certainly wasted due to the abrasion of the hinge at the positions.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a simple structure, durable, easy to maintain's rail vehicle door hinge.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a rail vehicle door hinge comprises a hinge seat, a hinge plate and a pin shaft, wherein the pin shaft is fixed in a pin shaft hole on the hinge seat; a sinking platform is arranged at one end of the hinge seat, and a first gasket consistent with the height, the cross-sectional shape and the size of the sinking platform is arranged on the sinking platform; the hinge plate is provided with a connecting sleeve, one end of the connecting sleeve is provided with a notch, a second gasket with the shape matched with the notch is arranged on the pin shaft at the notch, the hinge plate is fixed on the pin shaft through the connecting sleeve and rotates along with the pin shaft, and the contact surface of the first gasket and the second gasket is the rotating contact surface between the hinge plate and the hinge seat.

Furthermore, a sinking platform is arranged at the end part of the connecting sleeve; and a boss is arranged on the second gasket.

Further, the shaft pin is of a cylindrical T-shaped structure, and a round hole is arranged at the end part of the shaft pin.

Further, one end of the pin shaft is provided with a cotter pin and a flat washer.

Further, the whole hinge is of a symmetrical structure; the first gasket and the second gasket are arranged on the lower half portion of the hinge.

Furthermore, the hinge seat is provided with 2 waist holes.

Furthermore, 4 waist holes are arranged on the hinge plate.

Further, the first gasket and the second gasket are made of bearing steel.

Further, the hinge plate and the hinge seat are made of carbon steel or stainless steel.

The utility model has the advantages as follows:

(1) the utility model provides a rail vehicle door hinge carry out corresponding design to the structure for rotatory contact segment comprises the gasket of two convenient to detach changes, is guaranteeing under the gasket can fix firm circumstances, and the wearing and tearing volume that produces when the hinge rotates is undertaken by the gasket, only needs to change the gasket like this and can accomplish the maintenance to the hinge, has improved the life of hinge subassembly, and has practiced thrift the cost.

(2) The utility model provides a rotating contact surface part material of rail vehicle door hinge adopts the bearing steel, and major structure adopts carbon steel material, and the former improves the wear resistance of contact surface, has improved the life of hinge, and the latter cost is lower, nevertheless can guarantee the whole bearing capacity and the intensity of hinge.

Drawings

FIG. 1 is a schematic view of the present invention illustrating a door hinge structure of a rail vehicle;

FIG. 2 is a schematic view of the present invention illustrating a door hinge structure of a rail vehicle;

FIG. 3 is a cross-sectional view of the rail vehicle door hinge provided by the present invention;

FIG. 4 is a schematic view of a hinge plate construction;

FIG. 5 is a schematic view of the end of the connecting sleeve;

FIG. 6 is a schematic view of a hinge base structure;

FIG. 7 is a schematic structural view of a second gasket;

FIG. 8 is a schematic view of a gasket;

FIG. 9 is a schematic view of a pin structure.

Detailed Description

The present invention will be further explained with reference to the drawings and examples. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, the rail vehicle door hinge comprises a hinge base 1, a hinge plate 2 and a pin shaft 3.

The embodiment comprises two hinge bases 1, a shaft pin 3 penetrates through shaft pin holes in the two hinge bases and is fixed, the shaft pin 3 is of a cylindrical T-shaped structure, a round hole is formed in the bottom of the shaft pin, so that when the hinge base is fixed, one end of the shaft pin is directly clamped on the end face of the hinge base 1, the other end of the shaft pin is positioned and limited by a split pin 31 penetrating through the round hole, a flat gasket 32 is arranged for reinforcement, and lubricating grease is coated before the assembly of the shaft pin 3 for lubrication.

As shown in fig. 1 and 6, a sinking platform is arranged at the inner side end of the lower hinge base 1, a gasket a consistent with the height, the cross-sectional shape and the size of the sinking platform is arranged on the sinking platform, and the gasket a can be stably arranged under the action of the gravity of the gasket a and the limiting action of the sinking platform and the pin shaft 3; meanwhile, as shown in fig. 4 and 5, a connecting sleeve 21 is arranged on the hinge plate 2, a gap is arranged at one end of the connecting sleeve 21 close to the sinking platform, and a second gasket B with the shape matched with the gap is arranged on the pin shaft 3 at the gap; the end part of the connecting sleeve 21 is provided with a sinking platform; the second gasket B is provided with a boss, so that the second gasket B is fixed through the limit of the notch and the matching of the sinking platform and the boss; the hinge plate 2 is fixed on the pin shaft 3 through the connecting sleeve 21 and rotates along with the pin shaft 3, so that the contact surface of the first gasket A and the second gasket B is the rotating contact surface of the hinge plate 2 and the hinge seat 1 during rotation, and lubricating grease is coated on the contact surface during assembly.

The event the utility model provides a hinge in-service use, the rotating contact surface that easily takes place wearing and tearing comprises two light and handy gaskets, and the wearing and tearing volume that produces when the hinge rotates is undertaken by the gasket, even the gasket damages the normal performance who influences the hinge function like this, also only needs to change the gasket of wearing and tearing, need not to change whole hinge subassembly because of the rotating contact surface damage, and this has improved the life of whole hinge subassembly, has greatly saved the cost.

The hinge is integrally of a symmetrical structure, in the embodiment, only one first gasket A and one second gasket B are respectively arranged on the lower half portion of the hinge, which is not only in consideration of installation stability, but also in two rotating contact surfaces of the whole hinge, the lower contact surface is the one which is more greatly influenced by gravity, and the friction force generated during rotation is much larger and is easy to damage.

As shown in the figure, 2 waist holes are arranged on the hinge seat 1 and can be connected to a door frame in a bolt fastening mode, the waist holes have the function of properly adjusting the door, and the adjusting direction of the waist holes is the longitudinal direction of the door, namely the height direction of the door; as shown in the figure, 4 waist holes are arranged on the hinge plate 2 and are fastened and connected on the vehicle door framework through bolts, the waist holes have the function of properly adjusting the vehicle door, and the adjusting direction of the waist holes is the transverse direction of the vehicle door, namely the width direction of the vehicle door.

Example 2

The difference between this embodiment and embodiment 1 is that the material for manufacturing the first gasket a and the second gasket B in this embodiment is bearing steel, and the material for manufacturing the hinge plate 2 and the hinge base 1 is carbon steel or stainless steel, which is considered from both practical use and cost, and the hardness of the contact surface portion can be improved by using the bearing steel and performing appropriate heat treatment on the bearing steel, thereby improving the wear resistance; the hinge seat, the hinge plate 2 and the pin shaft 3 are main body structures of the hinge, the main body strength of the whole hinge is determined, carbon steel is adopted, the material cost is much lower than that of bearing steel, the toughness of the material is better than that of the bearing steel, and the two materials realize complementation.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A rail vehicle door hinge comprises a hinge seat, a hinge plate and a pin shaft, and is characterized in that the pin shaft is fixed in a pin shaft hole on the hinge seat; a sinking platform is arranged at one end of the hinge seat, and a first gasket consistent with the height, the cross-sectional shape and the size of the sinking platform is arranged on the sinking platform; the hinge plate is provided with a connecting sleeve, one end of the connecting sleeve is provided with a notch, a second gasket with the shape matched with the notch is arranged on the pin shaft at the notch, the hinge plate is fixed on the pin shaft through the connecting sleeve and rotates along with the pin shaft, and the contact surface of the first gasket and the second gasket is the rotating contact surface between the hinge plate and the hinge seat.

2. The rail vehicle door hinge according to claim 1, wherein the end of the connecting sleeve is provided with a sunken platform; and a boss is arranged on the second gasket.

3. The rail vehicle door hinge of claim 1, wherein the pin is a cylindrical T-shaped structure with a circular hole disposed at an end thereof.

4. The rail vehicle door hinge according to claim 3, wherein one end of the pin shaft is fitted with a cotter pin and a flat washer.

5. The rail vehicle door hinge of claim 1, wherein the hinge is generally a symmetrical structure; the first gasket and the second gasket are arranged on the lower half portion of the hinge.

6. The rail vehicle door hinge according to claim 1, wherein 2 waist holes are provided on the hinge base.

7. The rail vehicle door hinge according to claim 1, wherein the hinge plate is provided with 4 waist holes.

8. The rail vehicle door hinge of claim 1, wherein the first and second shims are fabricated from bearing steel.

9. The rail vehicle door hinge according to claim 1, wherein the hinge plate and the hinge base are made of carbon steel or stainless steel.

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