CN219492904U - Elastic piece and vibration damping assembly for wheel set detection - Google Patents

Abstract

The utility model belongs to the technical field of wheel set detection equipment, and discloses an elastic piece and a vibration damping assembly for wheel set detection. The elastic piece comprises an elastic deformation part, the elastic deformation part comprises a leading-in surface section which is obliquely arranged along the movement direction, and the elastic deformation part also comprises a leading-out surface section which is parallel to the movement direction and is connected with the leading-in surface section. The utility model can reduce the instantaneous impact of the wheel pair detection device and absorb the oscillation, thereby improving the detection precision of the detection device.

Description

Elastic piece and vibration damping assembly for wheel set detection

Technical Field

The utility model belongs to the technical field of wheel set detection equipment, and particularly relates to an elastic piece and a vibration damping assembly for wheel set detection.

Background

In the process of running the train at a high speed, wheels and steel rails are worn unevenly, so that the wheels are out of round; in addition, due to reasons such as emergency braking, poor braking relief, overlarge wheel diameter difference of the same wheel set and the like, the wheels slide on the rail surface, so that the tread is damaged in one or a plurality of planes; in the casting process of the wheel, the problems of materials and the like can cause the damage such as local stripping and falling of the tread.

It is known that the quality of the wheels of the train affects the running safety of the train, and the degradation of the quality of the wheels will increase wear, which not only affects the use safety of the track facilities, but also causes driving accidents such as axle breakage.

In order to ensure the running safety of the train, tread damage detection is mainly realized through an online wheel set fault dynamic detection device at present. The existing online wheel set fault dynamic detection device is mainly a contact type detection method, and can adapt to lower running speed (below 15 km/h), however, if the running speed of the vertical lathe is increased, the effectiveness of detection data is affected due to the increase of impact oscillation between the wheels of the train and the detection device, so that the quality of the wheels is detected inaccurately and potential safety hazards are buried.

Disclosure of Invention

In view of the above, the present utility model discloses an elastic member capable of reducing the instantaneous impact of a wheel on a detecting device and absorbing the vibration, thereby improving the detecting accuracy of the detecting device. The utility model also discloses a vibration damping assembly with the elastic piece.

The specific technical scheme of the utility model is as follows:

an elastic member includes an elastically deformable portion including a lead-in surface section disposed obliquely along a movement.

The elastic deformation part can deform when contacting the wheel pair, so that the vibration damping requirement is met; the guiding surface section inclines relative to the movement of the train, so that the downward component force and the forward component force of the elastic piece can be given, the synchronism of dynamic detection is maintained, the wheel set can stably drive through the elastic piece at the existing speed, and the bouncing or vibration is avoided.

Preferably, the elastic deformation part further comprises a leading-out surface section which is parallel to the movement direction and is connected with the leading-in surface section.

The guiding-out surface section can reduce the possibility of vibration in the detection process and can realize elastic deformation support of the elastic piece.

Preferably, the elastic coefficient of the elastic deformation portion increases in the moving direction.

The elastic coefficient of the leading-out surface section is increased along the movement, so that the elastic deformation part can realize gradual vibration absorption along the movement, thereby better achieving the purpose of vibration damping.

Preferably, the thickness of the lead-out surface section increases gradually along the movement.

When the leading-out surface section is made of the same material, the elastic coefficients of different positions of the leading-out surface section can be changed by changing the thickness of the leading-out surface section.

Preferably, the guiding surface section is provided with a deformation limiting part for limiting the deformation amount of the elastic piece.

The deformation limiting part can prevent the elastic piece from excessively deforming to cause that the front wheel passes through and influence the contact between the rear wheel and the elastic piece.

Preferably, the deformation limiting part includes:

at least one hook member connected to the lead-in face segment; and/or

At least one hole-shaped member, the hole-shaped member being connected to the lead-in surface section.

The hook-shaped member and the hole-shaped member are capable of restricting a deformation path of the elastic deformation portion, and deforming the elastic deformation portion on a predetermined path.

Preferably, the method further comprises:

and the mounting part is connected with the elastic deformation part.

The mounting part can realize the integral specific mounting of the elastic piece, so that the wheel can realize non-roundness detection after vibration damping through the elastic piece.

Preferably, the mounting part has a plug guide structure.

The plug guiding structure can give the installation part the ability of location installation to the installation is realized more swiftly.

Preferably, the mounting point is located in the direction of extension of the outlet face section.

Since the mounting portion is located in the extension direction of the outlet face section, the mounting portion is also arranged parallel to the movement direction, thereby further achieving a quick mounting.

Preferably, the mounting portion has a step, and the insertion guide structure extends from the step to an end of the mounting portion away from the elastic deformation portion.

The step can position the installation extreme position of the installation part, thereby better realizing the installation.

Preferably, the method further comprises:

and the hammering part is connected with the mounting part and is used for beating the mounting elastic piece.

In the process of installing the elastic piece through the installation part, the installation part can be more stably connected through striking the hammering part.

Preferably, the hammering portion extends along the mounting portion toward the direction of the elastic deformation portion;

the hammer intersects the insertion surface section at an extension line of the movement direction on a plane projection surface perpendicular to the insertion surface section.

The installation department is located the one side that the elastic component kept away from leading-in face section to rationally utilize elastic component own structure to set up the installation department, thereby reduce elastic component own volume.

A vibration damping assembly for wheel set detection comprises an elastic piece as described above.

When the vibration damping component is provided with the elastic piece, all beneficial effects of the elastic piece can be obtained, so that vibration damping before detection is realized when the wheel set is detected, and more accurate detection data can be obtained.

Compared with the prior art, the front elastic piece provided by the utility model can avoid larger impact oscillation generated when the wheel is contacted with the detection device, so that data detection is performed after the vibration is buffered, and potential safety hazards caused by inaccurate detection data are avoided; the utility model can provide proper supporting force for the elastic deformation part of the elastic piece so as to provide stable deformation supporting capability for the elastic piece on the basis of meeting the deformation requirement; in addition, the utility model can conveniently and rapidly realize installation.

Drawings

FIG. 1 is a front view of an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an embodiment of the present utility model;

FIG. 3 is a schematic view of a hook member according to an embodiment of the utility model;

FIG. 4 is a schematic view of a stop lever according to an embodiment of the present utility model;

FIG. 5 is a schematic illustration of a lead-out face segment in an embodiment of the utility model;

FIG. 6 is another schematic view of a lead-out face segment in an embodiment of the utility model;

FIG. 7 is a schematic illustration of a lead-out face segment in accordance with an embodiment of the present utility model;

FIG. 8 is another schematic view of a mounting portion according to an embodiment of the present utility model;

fig. 9 is a schematic view of a mounting portion according to an embodiment of the present utility model.

In the figure: 1-an elastic deformation portion; 2-an introduction face section; 3-guiding out the surface section; 4-hook members; a 5-hole shaped member; 6-limiting rod pieces; 7-a mounting part; 8-a limit groove; 9-a first step; 10-hammer.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.

As shown in fig. 1 to 2, an elastic member includes an elastic deformation portion 1, and the elastic deformation portion 1 includes a lead-in surface section 2 which is inclined along a movement.

The elastic element is arranged in a detection device, which typically has a detection surface in contact with the wheel, so that it is understood that the lead-in surface section 2 is arranged obliquely to the detection surface. That is, the wheel contacts the lead-in surface section 2, deforms the elastically deforming portion 1, and then moves to the detection surface.

For better use of the present embodiment, the elastically deformable portion 1 further comprises a lead-out surface section 3 oriented parallel to the movement and engaged with the lead-in surface section 2.

In this embodiment, the outgoing surface section 3 is in the same plane as the detection surface. When the wheel passes through the leading-in surface section 2, the wheel is transited to the detection surface through the leading-out surface section 3, so that the wheel is prevented from jumping when transiting between the leading-in surface section 2 and the detection surface.

For better use of the present embodiment, the elastic coefficient of the elastic deformation portion 1 increases in the moving direction.

The specific structure of the elastic deformation part 1 needs to meet the deformation requirement and the deformation support requirement simultaneously. Therefore, in the present embodiment, the elastic deformation portion 1 may be processed to a structure in which the thickness increases in the movement direction by materials of different elastic coefficients to satisfy the above-described requirements, or based on the same material.

For the embodiment in which the elastic modulus is changed by the thickness, the whole of the elastic deformation portion 1 may be increased in the moving direction, or the front section thickness may be kept constant, the rear section may have a thickness larger than that of the front section and kept constant, or the front section thickness may be kept constant, and the rear section thickness may be increased.

In this embodiment, the elastic deformation portion 1 includes a lead-in surface section 2 and a lead-out surface section 3. The lead-out surface section 3 can provide supporting force for deformation, so that the lead-in surface section 2 can meet the vibration damping requirement with enough gradient.

In some embodiments, the lead-in surface section 2 is of a ramp configuration, i.e. the angle of the lead-in surface section 2 relative to the direction of movement is constant, while in some embodiments, the lead-in surface section 2 is of a curved configuration, i.e. the angle of any one of the lead-in surface sections 2 relative to the direction of movement is different.

At the end of the lead-out surface section 3 near the lead-in surface section 2, the elastic coefficient thereof is relatively low, and at the end of the lead-out surface section 3 remote from the lead-in surface section 2, the elastic coefficient is relatively high, and vibration reduction is thereby achieved gradually in a gradual or gradual manner when passing through the wheel.

In some embodiments, the leading-out surface section 3 realizes the change of the elastic coefficient through material selection, in such embodiments, materials with various different elastic coefficients are needed to be spliced or welded to complete the manufacture of the elastic deformation part 1, the manufacturing process is complex, and the connection strength is not high; in some embodiments, the process is relatively complex to implement by manufacturing from the same material at different densities.

As shown in fig. 5 to 7, in some embodiments, for simplicity of process and convenience of manufacture, the lead-out surface sections 3 are made of the same material, and the thickness of the lead-out surface sections 3 is different in a direction along the movement direction so as to form a bevel or a curved surface or a serrated surface.

In this embodiment, spring steel is used as the material of the elastically deforming part 1.

In particular, in the present embodiment, the thickness of the lead-out surface section 3 gradually increases along the movement.

Namely, an inclined plane or a curved surface is formed on the inner side of the leading-out surface section 3, so that the processing difficulty is lower, and the leading-out surface section 3 can be ensured to have the elastic deformation supporting capability required by design.

For better use of the present embodiment, the introducing surface section 2 is provided with a deformation limiting portion for limiting the deformation amount of the elastic deformation portion 1.

The deformation limiting part can be arranged at the end part of the leading-in surface section 2 or between the two ends of the leading-in surface section 2. In this embodiment, the deformation limiting portion is disposed at an end of the lead-in surface section 2 away from the lead-out surface section 3.

However, in some embodiments, the deformation limiter may not be provided. It is known that the lead-in surface section 2 is arranged obliquely to the movement, that is to say, a certain angle is formed between the lead-in surface section 2 and the detection surface, which angle can be a range angle, so that in the embodiment without a deformation limiting part, the longer length of the lead-in surface section 2 needs to be prolonged on the basis of ensuring the design angle range, so that the lead-in surface section 2 is prevented from exceeding the initial position when the deformation is recovered, and the front wheel is prevented from passing through and then the rear wheel is prevented from rigidly striking the end part of the lead-in surface section 2.

In some embodiments, as shown in FIG. 3, the deformation limiter comprises a hook-shaped element 4, the hook-shaped element 4 being connected to the lead-in section 2. The thickness of the hook elements 4 is adapted to the width of the lead-in section 2. In other embodiments, the hook members 4 may be thinner in thickness, in which case a plurality of hook members 4 may be positioned side-by-side to meet the spacing requirements.

In some embodiments, as shown in fig. 1, the deformation limiter comprises a hole-shaped member 5, wherein the hole-shaped member 5 is connected to the lead-in surface section 2. The thickness of the hole-shaped element 5 is adapted to the width of the insertion surface section 2. In other embodiments, the thickness of the hole-shaped member 5 is relatively thin, and in this case, a plurality of hole-shaped members 5 may be arranged side by side to meet the limit requirement. It is understood that the hole of the hole-shaped member 5 may be circular, square, polygonal, kidney-shaped, oval, or the like.

It should be noted that the detection device has a rod member that cooperates with the deformation limiting portion. Taking the hole-shaped member 5 with one waist-shaped hole in the elastic deformation portion 1 as an example, when assembling, the rod needs to be extended into the waist-shaped hole, and it is known that the waist-shaped hole has a long diameter, and thus the length of the long diameter is the maximum deformation amount of the elastic member.

The two end points of the long diameter are respectively an upper end point and a lower end point. Under some conditions of use, the elastic deformation part 1 is in an initial state firstly, the rod piece contacts with the lower endpoint, a gap can be formed between the rod piece and the lower endpoint, when the wheel contacts with the leading-in surface section 2, the elastic deformation part 1 deforms, in the process of continuous displacement of the wheel, the position of the rod piece is gradually changed to the position of the upper endpoint at the lower endpoint, namely, the elastic deformation part 1 continuously deforms or has a trend or action of recovering to the initial state, in the process of recovering to the initial state of the elastic deformation part 1, the elastic deformation part 1 is unloaded and sprung up, at the moment, the rod piece contacts with the lower endpoint, and the lower endpoint limits the elastic deformation part 1 to continuously move towards one side of the detection surface far away from the elastic limiting part, so that the elastic limiting part is prevented from being upturned relative to the initial state and rigidly colliding with the rear wheel. It is understood that the upper end point can limit the continuous deformation of the elastic deformation portion 1. Therefore, on the premise of eliminating potential safety hazards, the service life of the detection device is guaranteed, and the accuracy of the detection precision and the stability of the detection process are also guaranteed.

It is appreciated that in some embodiments, as shown in fig. 4, when the deformation limiter comprises a limit lever 6, the detection device may be provided with a hole-shaped member or a hook-shaped member that cooperates with the limit lever 6.

As shown in fig. 1, for better use of the present embodiment, the present embodiment further includes a mounting portion 7, and the mounting portion 7 is connected to the elastically deforming portion 1.

In this embodiment, the upper surface of the mounting portion 7 is joined to the lead-out surface section 3 and is located on the same plane, and generally, the upper surfaces of the lead-in surface section 2, the lead-out surface section 3, and the mounting portion 7 form a smooth surface of the elastic member.

In some embodiments, the mounting portion 7 is directly connected to the lead-in face section 2. However, since the mounting portion 7 should have sufficient rigidity, in a preferred embodiment, the wheels should pass through the lead-in section 2, the lead-out section 3, and the mounting portion 7 in that order in motion.

For better use of the present embodiment, the mounting portion 7 has a plug guide structure.

In this embodiment, the mounting portion 7 has a limit groove 8 extending in the longitudinal direction thereof.

In this embodiment, the detecting device has a mounting position matched with the mounting portion 7, and the mounting portion 7 can be plugged into the mounting position, so that the assembly of the elastic member and the detecting device can be realized. On this basis, since the mounting portion 7 has the limit groove 8, the mounting position also has the limit convex strip which is matched with the limit groove 8.

It is known that, in general, the size of the mounting position and the size of the mounting portion 7 should be matched, that is, after the mounting position and the mounting portion are matched, a gap between the mounting position and the mounting portion can be eliminated, so that vibration generated when the wheel passes through can be reduced. On this basis, in some embodiments, the limit groove 8 and the limit protruding strip may not be designed, where the mounting position is set as a through hole or a counter bore, and the mounting portion 7 may be directly inserted into the through hole or the counter bore, and in such embodiments, the upper surface of the mounting portion 7 is generally lower than the guiding-out surface section 3, so as to ensure smoothness when the vehicle passes through.

In this embodiment, when the installation department 7 has spacing groove 8, and detection device has spacing sand grip, except satisfying the installation condition, can also increase the frictional force between the two to on satisfying the basis of convenient installation, provide installation stability, further reduce vibration.

It will be appreciated that one of the mounting portion 7 and the detecting device is provided with a limit groove 8, and the other is provided with a limit protrusion matched with the limit groove 8, so that the above requirement can be met, and therefore, in some embodiments, the mounting portion 7 has a limit protrusion extending along a length direction thereof.

In some embodiments, pins or bolts or other fasteners may be used to limit the position of the mounting portion 7 and the detection device after assembly is successful.

For a better use of the present embodiment, the mounting 7 is located in the extension direction of the outlet surface section 3.

In this embodiment, the installation part 7 and the outgoing surface section 3 are located on the same straight line, and it is understood that, in order to ensure the passing stability of the train, the upper surface of the installation part and the outgoing surface section 3 are located on the same plane. It will be appreciated that in some embodiments, as shown in fig. 9, the mounting portion 7 and the lead-out surface section 3 may be disposed at an angle, and it should be noted that in such embodiments, the lead-out surface section 3 and the detection surface mounting portion 7 should be smoothly transitioned so that the wheels can pass smoothly and without jolts, and the stability requirements of the train passing the mounting portion 7 are satisfied.

For better use of the present embodiment, the mounting portion 7 has a step, and the insertion and extraction guide structure extends from the step to an end of the mounting portion 7 away from the elastic deformation portion 1.

Let above-mentioned step be first step 9, detection device is equipped with the second step of cooperation with first step 9, the second step is located above-mentioned mounted position department. Thus, during installation, when the first step 9 abuts against the second step, the installation is indicated in place. In some embodiments, the second step may be an end face of the detection device.

For better use of the present embodiment, a hammer 10 is further included, said hammer 10 being connected to the mounting 7 for striking the mounting elastic member.

Specifically, the hammering portion 10 extends along the mounting portion 7 toward the direction of the elastic deformation portion 1; on a plane projection perpendicular to the insertion surface section, the hammer 10 intersects the insertion surface section 2 in a movement-oriented extension.

In this embodiment, the thickness of the guiding-out surface section 3 gradually increases along the movement, and in this embodiment, the guiding-out surface section 3 is curved on the side far away from the detection surface, so the inner side of the elastic deformation portion 1 has an empty position, and on this basis, the hammering portion 10 is disposed at the empty position, so as to reduce the overall volume of the elastic member.

In the process of mounting the elastic member to the detecting device, the hammering part 10 is hit by a tool, so that the elastic member can be knocked into the mounting position, and when the first step 9 and the second step are abutted, the mounting is completed.

In other embodiments, as shown in fig. 8, the hammering portion 10 is disposed on the side of the elastic member, and in general, the elastic member should be disposed on both sides of the elastic member, and in this embodiment, the mounting process is to strike the mounting portions 7 on both sides of the elastic member in a staggered manner, so as to balance the acting force of the elastic member when being mounted into the detecting device, thereby meeting the mounting requirement.

Based on the above embodiment, this embodiment also discloses a damping assembly for wheel set detection. It is known that the vibration damping assembly is a part of the detection device, and the vibration damping assembly can reduce vibration between the wheel and the detection device so as to improve accuracy of detection data.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims (12)

1. An elastic member, comprising an elastically deformable portion including a lead-in surface section disposed obliquely along a movement;

the elastic deformation part also comprises an export surface section which is parallel to the movement direction and is connected with the import surface section.

2. An elastic member according to claim 1, wherein the elastic modulus of said elastically deformable portion increases in the direction of movement.

3. An elastic member according to claim 2, wherein the thickness of the lead-out surface section increases gradually in the direction of movement.

4. An elastic member according to claim 1, wherein the lead-in surface section is provided with a deformation restricting portion for restricting the deformation amount of the elastic deformation portion.

5. An elastic member according to claim 4, wherein said deformation restricting portion comprises:

at least one hook member connected to the lead-in face segment; and/or

At least one hole-shaped member, the hole-shaped member being connected to the lead-in surface section.

6. An elastic member according to any one of claims 1 to 5, further comprising:

and the mounting part is connected with the elastic deformation part.

7. An elastic member according to claim 6, wherein said mounting portion has a plug guide structure.

8. An elastic member according to claim 7, wherein said mounting portion is located in the direction of extension of the lead-out face section.

9. An elastic member according to claim 8, wherein the mounting portion has a step, and the insertion and extraction guide structure extends from the step to an end of the mounting portion remote from the elastically deformable portion.

10. An elastic member according to claim 8 or 9, further comprising:

and the hammering part is connected with the mounting part and is used for beating the mounting elastic piece.

11. An elastic member according to claim 10, wherein said hammering portion extends along the mounting portion in the direction of the elastic deformation portion;

the hammer intersects the insertion surface section at an extension line of the movement direction on a plane projection surface perpendicular to the insertion surface section.

12. A vibration damping assembly for wheel set detection comprising an elastic member according to any one of claims 1 to 11.