CN215041837U

CN215041837U - Brake wheel

Info

Publication number: CN215041837U
Application number: CN202121447719.1U
Authority: CN
Inventors: 聂立川; 李淼; 蒋辉军
Original assignee: Shijiazhuang Tieke Electric Co ltd
Current assignee: Shijiazhuang Tieke Electric Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-07
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a brake wheel, which comprises a wheel body, a fixed shaft, a snap ring, a movable ring and a driving structure, wherein one end of the fixed shaft is rotatably connected with the center of the wheel body, and the other end extends out of the wheel body; the clamping ring is coaxially fixed on the wheel body, and the inner hole of the clamping ring is a conical hole with the small end facing outwards; the movable ring is sleeved on the fixed shaft in an axially movable manner, a clamping head in a conical shape is arranged at one end of the movable ring facing the clamping ring, and the movable ring moves towards the wheel body to enable the clamping head to be clamped with the clamping ring; the driving structure is used for driving the movable ring to move close to or away from the wheel body. The brake wheel is characterized in that a clamping ring is fixed on the wheel body, a conical sleeving structure is arranged between the clamping ring and the movable ring, the movable ring is driven to move axially to extrude the clamping ring, the brake for rotating the wheel body can be realized, the operation is simple, the brake is stable and reliable, and the wheel surface cannot be damaged.

Description

Brake wheel

Technical Field

The utility model relates to a wheel field especially relates to a brake wheel.

Background

In the construction of an electrified railway contact network, a small rail car is required to transport equipment materials and construction waste materials back and forth, or a ladder car is used for maintaining lines and the like. In order to ensure the stability of the parking of the car body in the construction of an electrified railway contact network, the car body needs to be braked and controlled. The existing brake wheel carries out friction braking on the wheel surface through a braking structure, the friction force is very large, the abrasion of the wheel surface is serious, the wheel surface can only be integrally replaced during replacement, and resources are seriously wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a braked wheel that can effectively carry out brake control to the wheel body is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a brake wheel, comprising:

a wheel body;

one end of the fixed shaft is rotatably connected with the center of the wheel body, and the other end of the fixed shaft extends out of the wheel body;

the clamping ring is coaxially fixed on the wheel body, and an inner hole of the clamping ring is a conical hole with the small end facing outwards;

the movable ring is sleeved on the fixed shaft in an axially movable manner, one end of the movable ring, facing the clamping ring, is provided with a clamping head in a conical shape, and the movable ring moves towards the wheel body to enable the clamping head to be clamped with the clamping ring; and

and the driving structure is used for driving the movable ring to move close to or away from the wheel body.

A further technical solution consists in that,

the outer wall of the movable ring is provided with a section of annular groove which is inwards recessed in the radial direction, two ends of the annular groove in the axial direction are provided with convex extrusion surfaces, and the annular groove is provided with a strip-shaped sliding hole in the axial direction;

the driving structure includes:

the rotating shaft is perpendicular to the fixed shaft, is rotatably connected to the fixed shaft and penetrates through the sliding hole in the movable ring;

the eccentric wheel is fixed on the rotating shaft and is positioned in the annular groove of the movable ring, and the eccentric wheel rotates to extrude the extrusion surfaces on two sides respectively, so that the movable ring is driven to move close to or far away from the wheel body.

The further technical proposal is that the rotating shaft is bent to form a handle part after extending out of the sliding hole.

The technical scheme is that the handle part is provided with an anti-slip sleeve.

A further technical solution is that the wheel body comprises:

the wheel ring is made of rubber or plastic materials; and

the wheel support is made of metal materials and fixed in the wheel ring, and the wheel support is rotatably connected with the fixed shaft.

The wheel support is characterized in that a circle of connecting part protruding inwards is arranged on the inner ring surface of the axial middle part of the wheel ring, a circle of accommodating groove sinking inwards is arranged on the outer ring surface of the wheel support, and the connecting part is arranged in the accommodating groove and fixed through a connecting piece.

The further technical scheme is that the connecting piece is a plurality of bolts which are circumferentially and uniformly distributed.

The further technical proposal is that at least one axial end of the wheel body is provided with a flanging which is outward in the radial direction and is used for clamping with the track.

The further technical scheme is that the fixed shaft is connected with the center of the wheel body through a bearing.

The technical scheme is that a flange plate is fixed at one end of the fixed shaft, which extends out of the wheel body.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the brake wheel is characterized in that a clamping ring is fixed on the wheel body, a conical sleeving structure is arranged between the clamping ring and the movable ring, the movable ring is driven to axially move to extrude the clamping ring, the brake of the wheel body rotation can be realized, the operation is simple, and the brake is stable and reliable. And the wheel surface can not be damaged and does not need to be replaced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of a headblock of the present disclosure;

FIG. 2 is a schematic structural view of a movable ring of the present disclosure;

fig. 3 is a schematic structural view of the brake wheel of the present disclosure with the wheel body hidden.

Detailed Description

The technical solutions in the embodiments of the present invention are 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 some, not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 3, the brake wheel can be used for a main body of a rail transportation cart, a ladder car, a road trolley and the like which needs to move. The brake wheel comprises a wheel body 1, a fixed shaft 2, a clamping ring 3, a movable ring 4 and a driving structure.

The wheel body 1 includes a rim 101 made of rubber or plastic material, and a wheel support 102 made of metal material, and the wheel support 102 may be regarded as a hub and fixed in the rim 101. At least one axial end of the wheel body 1 is provided with a flanging which is outward in the radial direction and is used for being clamped with the track, and the transverse limiting of the train body when the track moves is realized through the two flanging on the two wheel bodies 1. The walking surface of the wheel body 1 contacting with the rail is made of non-metal materials, so that on one hand, the interference of the main body on the rail signal can be avoided when the main body moves, and on the other hand, the friction force caused by the movement of the wheel body 1 by small stones and the like on the rail can be reduced. The fixing form of the wheel ring 101 and the wheel support 102 is that a circle of connecting parts protruding inwards are arranged on the inner ring surface of the axial middle part of the wheel ring 101, a circle of accommodating grooves sinking inwards are arranged on the outer ring surface of the wheel support 102, the connecting parts are arranged in the accommodating grooves and fixed through a connecting piece 103, and the connecting piece 103 can be a plurality of bolts distributed annularly and uniformly.

One end of the fixed shaft 2 is rotatably connected with the center of the wheel body 1 through a bearing, and the other end extends out of the wheel body 1 and is fixed with a flange plate 201, so that the brake wheel and the movable body can be directly connected and fixed.

The snap ring 3 is coaxially fixed on the wheel support 102 of the wheel body 1, and can be assembled on the wheel support 102 in an interference fit manner. The inner hole of the snap ring 3 is a taper hole with the small end facing outwards.

The fixed axle 2 is located to loose ring 4, cover that can axial displacement, loose ring 4 has dop 401 that is the cone towards the one end of snap ring 3, loose ring 4 moves towards wheel body 1 and can make

dop

401 and 3 joints of snap ring.

The outer wall of the movable ring 4 is provided with a section of annular groove 402 which is radially inwards recessed, two axial ends of the annular groove 402 are provided with convex extrusion surfaces, and the annular groove 402 is provided with a strip-shaped sliding hole 403 along the axial direction. The fixed shaft 2 is rotatably connected with a rotating shaft 5 which is perpendicular to the fixed shaft, the rotating shaft 5 and the fixed shaft 2 can rotate in a clearance fit mode, and the rotating shaft 5 penetrates through the fixed shaft 2 and is provided with a limiting part which limits the rotating shaft to be separated from the fixed shaft 2 on the end face. One end or two ends of the rotating shaft 5 penetrate through the sliding hole 403 on the movable ring 4, the rotating shaft 5 is bent after extending out of the sliding hole 403 to form a handle part, and the handle part is provided with an anti-slip sleeve 501. An eccentric wheel 6 is fixed on the fixed shaft 2, the eccentric wheel 6 is positioned in the annular groove 402 of the movable ring 4, and the eccentric wheel 6 rotates to respectively extrude the extrusion surfaces at two sides, so that the movable ring 4 is driven to move close to or far away from the wheel body 1. Through the arrangement of the ring groove 402 and the sliding hole 403 on the movable ring 4, and the rotating shaft 5 and the eccentric wheel 6, a driving structure for driving the movable ring 4 to move close to or away from the wheel body 1 is formed.

This braked wheel is when carrying out braking operation, and the staff is rotatory to be held the handle portion rotation of pivot 5 to make eccentric wheel 6 carry out eccentric rotation, extrude the extrusion face that is close to snap ring 3 one side on the movable ring 4 through eccentric wheel 6, make movable ring 4 be close to 3 axial displacement of snap ring, dop 401 gets into in the snap ring 3, and interference fit is realized in the two extrusion, because movable ring 4 can not rotate by the restriction of pivot 5, thereby has restricted the rotation of wheel body 1. And certain extrusion force is formed between the eccentric wheel 6 and the extrusion surface, and when no external force is introduced, the eccentric wheel 6 cannot rotate randomly, so that the stability and reliability of braking of the wheel body 1 are ensured.

When the braking of the wheel body 1 is needed, the rotating shaft 5 is rotated reversely, the eccentric wheel 6 extrudes the extrusion surface on the side, far away from the clamping ring 3, of the movable ring 4, so that the movable ring 4 is far away from the clamping ring 3 to move, the clamping head 401 is separated from the clamping ring 3, and the rotation limitation of the wheel body 1 is removed.

The braking wheel is characterized in that a clamping ring 3 is fixed on the wheel body 1, a conical sleeving structure is arranged between the clamping ring 3 and the movable ring 4, the movable ring 4 is driven to axially move to extrude the clamping ring 3, the braking of the rotation of the wheel body 1 can be realized, the operation is simple, and the braking is stable and reliable. And the wheel surface can not be damaged and does not need to be replaced.

The above is only the preferred embodiment of the present invention, and any person can make some simple modifications, deformations and equivalent replacements according to the present invention, all fall into the protection scope of the present invention.

Claims

1. A brake wheel, comprising:

a wheel body (1);

one end of the fixed shaft (2) is rotatably connected with the center of the wheel body (1), and the other end extends out of the wheel body (1);

the clamping ring (3) is coaxially fixed on the wheel body (1), and an inner hole of the clamping ring (3) is a conical hole with a small end facing outwards;

the movable ring (4) is sleeved on the fixed shaft (2) in an axially movable manner, one end, facing the clamping ring (3), of the movable ring (4) is provided with a clamping head (401) in a conical shape, and the movable ring (4) moves towards the wheel body (1) to enable the clamping head (401) to be clamped with the clamping ring (3); and

the driving structure is used for driving the movable ring (4) to move close to or far away from the wheel body (1).

2. The brake wheel of claim 1,

a section of annular groove (402) which is recessed inwards in the radial direction is formed in the outer wall of the movable ring (4), protruding extrusion surfaces are formed at two axial ends of the annular groove (402), and strip-shaped sliding holes (403) are formed in the annular groove (402) in the axial direction;

the driving structure includes:

the rotating shaft (5) is perpendicular to the fixed shaft (2), and the rotating shaft (5) is rotatably connected to the fixed shaft (2) and penetrates through a sliding hole (403) in the movable ring (4);

the eccentric wheel (6) is fixed on the rotating shaft (5) and is positioned in the annular groove (402) of the movable ring (4), the eccentric wheel (6) rotates to extrude the extrusion surfaces on two sides respectively, and the movable ring (4) is driven to move close to or far away from the wheel body (1).

3. The brake wheel according to claim 2, wherein the shaft (5) is bent to form a handle portion after extending out of the sliding hole (403).

4. A brake wheel according to claim 3, characterized in that the handle portion is provided with an anti-slip cover (501).

5. A brake wheel according to claim 1, characterized in that the wheel body (1) comprises:

the wheel ring (101) is made of rubber or plastic materials; and

the wheel support (102) is made of metal materials and fixed in the wheel ring (101), and the wheel support (102) is rotatably connected with the fixed shaft (2).

6. A brake wheel according to claim 5, characterized in that the inner annular surface of the axially central portion of the wheel rim (101) has a ring of inwardly projecting coupling portions, and the outer annular surface of the wheel support (102) has a ring of inwardly recessed receiving grooves, the coupling portions being received in the receiving grooves and being secured by the coupling members (103).

7. A brake wheel according to claim 6, characterized in that the connecting piece (103) is a plurality of bolts circumferentially equispaced.

8. A brake wheel according to claim 1, characterized in that at least at one axial end of the wheel body (1) there is a radially outward flange for snap-engagement with the track.

9. A braked wheel according to claim 1, characterised in that the stationary axle (2) is connected to the centre of the wheel body (1) by means of a bearing.

10. A brake wheel according to claim 1, characterized in that a flange (201) is fixed to the end of the stationary axle (2) that extends beyond the wheel body (1).