CN209231329U - Wheel track defect test mechanism - Google Patents
Wheel track defect test mechanism Download PDFInfo
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- CN209231329U CN209231329U CN201822108162.3U CN201822108162U CN209231329U CN 209231329 U CN209231329 U CN 209231329U CN 201822108162 U CN201822108162 U CN 201822108162U CN 209231329 U CN209231329 U CN 209231329U
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Abstract
The utility model relates to a kind of wheel track defect test mechanisms, including wheel mechanism, rail wheel mechanism, wheel mechanism includes electric pushrod, walking beam, the first spring and vehicle wheel component, electric pushrod is fixed on bearing beam, the both ends of bearing beam are equipped with column, and the lower section of the bearing beam is equipped with walking beam, and one end of walking beam and column are rotatablely connected, the other end of walking beam and the end of electric pushrod are fixed, and vehicle wheel component is connect by the first spring with walking beam；Rail wheel mechanism includes the track wheel assembly with vehicle wheel component CONTACT WITH FRICTION, one end of track wheel assembly is connect with driving motor, track wheel assembly is fixed in supporting beam, one end of supporting beam is flexibly connected with pillar, pillar is fixed on the base, and the other end lower part of supporting beam is equipped with the mobile supporting roller component being fixed on the base.The utility model structure is simple, area occupied is small, test result is accurate.
Description
Technical field
The utility model relates to wheel track defects simulation technical fields, more particularly to a kind of wheel track defect test mechanism.
Background technique
The defects of pit, crackle will appear due to its surface that rubs for a long time between railroad track and wheel, to guarantee railway
Normal operation, need staff periodically to overhaul.Current wheel track defect maintenance is usually staff periodically to rail
Road and wheel naked eyes are observed, and detection efficiency is low and the case where being easy to appear defect missing inspection.Therefore, pass through wheel track Defect Modes
Quasi- test, studies the feature of wheel track under typical defect, becomes one, safe railway operation field important topic.But at present not
There is effective wheel track defect test mechanism available.
Utility model content
The utility model provides that a kind of structure is simple, area occupied is small, test result accurate wheel track defect test mechanism,
Using wheel mechanism and rail wheel mechanism analog wheel operating status in orbit, by simulating various wheel track defects, to obtain
Take the feature of wheel track under various defects.
A kind of wheel track defect test of the utility model mechanism, including wheel mechanism, rail wheel mechanism, the wheel mechanism packet
Electric pushrod, walking beam, the first spring and vehicle wheel component are included, the electric pushrod is fixed on bearing beam, the bearing beam
Both ends are equipped with column, and the lower section of the bearing beam is equipped with walking beam, and one end of the walking beam and column are rotatablely connected, the work
The other end of dynamic beam and the end of electric pushrod are fixed, and the vehicle wheel component is connect by the first spring with walking beam；The rail
Dao Lun mechanism includes the track wheel assembly with vehicle wheel component CONTACT WITH FRICTION, and one end of the track wheel assembly and driving motor connect
It connects, the track wheel assembly is fixed in supporting beam, and one end of the supporting beam is flexibly connected with pillar, and the pillar is fixed on
On pedestal, the other end lower part of the supporting beam is equipped with the mobile supporting roller component being fixed on the base.
Preferably, the vehicle wheel component includes first bearing component, wheel and rotation shaft of wheel, the first bearing component
Setting is connected in wheel two sides and by rotation shaft of wheel, and one end of first spring is fixedly connected with first bearing component, separately
One end is fixedly connected with walking beam.
It is preferably in any of the above-described scheme, the connecting rod being obliquely installed is equipped between the bearing assembly and walking beam,
One end of the connecting rod is flexibly connected with walking beam, and the other end of the connecting rod is fixedly connected with bearing assembly.
It is preferably in any of the above-described scheme, the track wheel assembly includes second bearing component, rail wheel, track rotation
Axis, the second bearing component are arranged in rail wheel two sides and are connected by rail wheel shaft, and the driving motor passes through elasticity
Shaft coupling is connect with one end of rail wheel shaft.
It is preferably in any of the above-described scheme, the wheel and/or rail wheel are equipped at least one set with the wheel, rail
The symmetrical groove in the road wheel center of circle, is equipped with the insert being detachably fixed in the groove, in every group of symmetrical insert
Equipped with identical wheel track defect.
It is preferably in any of the above-described scheme, the rail wheel is equipped with the first displacement sensor, the mobile support roller group
Part is equipped with second displacement sensor.
Be preferably in any of the above-described scheme, the mobile supporting roller component include mobile support roller, supporting roller base, lead screw motor,
Screw rod and second spring, the mobile support roller are arranged on supporting roller base, and the lead screw motor is connect with screw rod, the supporting roller base and
Wire rod thread connection, the lower part of the support roller are fixed on supporting roller base, and the top of the support roller and supporting beam CONTACT WITH FRICTION are described
One end of second spring is fixedly connected with the supporting beam lower part close to the pillar, and the other end and pedestal of the second spring are solid
Fixed connection.
It is preferably in any of the above-described scheme, the top of the supporting beam is equipped with exciting device, the lower part of the supporting beam
Damper is equipped between the pillar and second spring.
It is preferably in any of the above-described scheme, the pillar is equipped with sliding slot, and one end of the supporting beam passes through connecting shaft
It is rotatablely connected with pillar and vertically movable along the chute.
It is preferably in any of the above-described scheme, the end of the electric pushrod is equipped with pressure sensor.
Compared with prior art, advantages and beneficial effects possessed by the utility model are as follows: the utility model driving motor
By driving track wheel assembly to drive vehicle wheel component to rotate, in the first spring, walking beam and electronic when vehicle wheel component rotates
It can teetertotter under the action of push rod, by changing position of the mobile supporting roller component in supporting beam to realize track wheel assembly
Stiffness tuning, realize simulating wheel operating status in orbit, guarantee the authenticity of dry run state.Wheel and/or
Rail wheel is equipped at least one set of groove symmetrical with wheel, the rail wheel center of circle respectively, is equipped in groove detachable solid
Fixed insert.Insert is symmetrical arranged, and prevents wheel or rail wheel from eccentric situation occur, wheel or rail wheel itself is caused to generate vibration
It is dynamic, influence the accuracy of test result.Insert is detachably secured in groove, and the edge of different wheel track defects is had by replacing
Block can be simulated there are the operating status of wheel track under various defects, easy to operate to obtain the feature of wheel track under various defects,
Test data is comprehensively true.The utility model overall structure is simple, equipment area occupied is small, can really simulate wheel track each
Operating status under kind defect.
The wheel track defect test mechanism of the utility model is described further with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model wheel track defect test mechanism；
Fig. 2 is the side sectional view of Fig. 1；
Wherein: 1, pedestal；2, column；3, bearing beam；4, electric pushrod；5, walking beam；6, the first spring；7, first bearing
Component；8, wheel；9, connecting rod；10, pillar；11, supporting beam；12, exciting device；13, rail wheel；14, mobile support roller；15,
Lead screw motor；16, screw rod；17, supporting roller base；18, the first displacement sensor；19, second displacement sensor；20, second spring；
21, damper；22, driving motor；23, yielding coupling；24, second bearing component；25, insert.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of wheel track defect test of the utility model mechanism, including wheel mechanism, rail wheel mechanism,
Wheel mechanism includes that electric pushrod, walking beam, the first spring and vehicle wheel component, electric pushrod are fixed on bearing beam, bearing beam
Both ends be equipped with column, the lower section of bearing beam is equipped with walking beam, and one end of walking beam and column are rotatablely connected, walking beam it is another
It holds and is fixed with the end of electric pushrod, vehicle wheel component is connect by the first spring with walking beam；Rail wheel mechanism includes and wheel
The track wheel assembly of component CONTACT WITH FRICTION, one end of track wheel assembly are connect with driving motor, and track wheel assembly is fixed on support
One end of Liang Shang, supporting beam are flexibly connected with pillar, and pillar is equipped with sliding slot, and one end of supporting beam is turned by connecting shaft and pillar
Dynamic connection and vertically movable along the chute, pillar is fixed on the base, and the other end lower part of supporting beam, which is equipped with, to be fixed on the base
Mobile supporting roller component.For driving motor by driving track wheel assembly to drive vehicle wheel component to rotate, vehicle wheel component rotates Shi
It can teetertotter under the action of one spring, walking beam and electric pushrod, by changing mobile supporting roller component in supporting beam
Position to realize the stiffness tuning of track wheel assembly, realize simulating wheel operating status in orbit, guarantee dry run
The authenticity of state.
Vehicle wheel component includes first bearing component, wheel and rotation shaft of wheel, the setting of first bearing component in wheel two sides and
It is connected by rotation shaft of wheel, one end of the first spring is fixedly connected with first bearing component, and the other end is fixedly connected with walking beam.
The connecting rod being obliquely installed is equipped between first bearing component and walking beam, one end of connecting rod is flexibly connected with walking beam, even
The other end of extension bar is fixedly connected with first bearing component.The setting of connecting rod prevents first bearing component from toppling.
Track wheel assembly includes second bearing component, rail wheel, rail wheel shaft, and second bearing component is arranged in rail wheel
It two sides and is connected by rail wheel shaft, driving motor is connect by yielding coupling with one end of rail wheel shaft.
Wheel and/or rail wheel are equipped at least one set of groove symmetrical with wheel, the rail wheel center of circle respectively, groove
The insert being detachably fixed inside is installed.Insert is symmetrical arranged, and prevents wheel or rail wheel from eccentric situation occur, cause wheel or
Rail wheel itself generates vibration, influences the accuracy of test result.Insert is detachably secured in groove, by replacement with not
With the insert of wheel track defect, can simulate there are the operating status of wheel track under various defects, to obtain wheel track under various defects
Feature, easy to operate, test data is comprehensively true.Specifically, being at this time wheel in track when there is no wheel track defect in insert
On normally travel state, when insert be equipped with wheel track defect when, at this time for simulation wheel track existing defects when operating status, lead to
Crossing insert of the replacement with different wheel track defects, there are wheel track operating statuses when various defects to realize simulation, and then obtain each
The state and feature that wheel track is run under kind defect.Wherein, every group of symmetrical insert is equipped with identical wheel track defect.
The wheel track defect that the present embodiment is tested is the defect for wheel, rail wheel upper surface, such as pit, abrasion, table
Facial cleft line etc..
Mobile supporting roller component includes mobile support roller, supporting roller base, lead screw motor, screw rod and second spring, mobile support roller setting
On supporting roller base, lead screw motor is connect with screw rod, and supporting roller base is connect with wire rod thread, and the lower part of support roller is fixed on supporting roller base,
The top of support roller and supporting beam CONTACT WITH FRICTION, one end of second spring are fixedly connected with the supporting beam lower part close to pillar, and second
The other end of spring is fixedly connected with pedestal.Lead screw motor drives screw rod rotation, and mobile support roller is by supporting roller base along screw rod transverse direction
Sliding realizes the change of the position in supporting beam, and then realizes the stiffness tuning to rail wheel, to simulate under different-stiffness
Wheel track operating status.Specifically, mobile support roller is remoter from the rail wheel center of circle, the rigidity of rail wheel is lower, and the deformation of supporting beam is got over
Greatly, when mobile support roller is located at rail wheel center location, at this point, rail wheel is pure rigidity state, there is no deformations for supporting beam.The
One end that support roller is relatively moved in supporting beam is arranged in two springs, plays support support beam action, guarantees the entirety of supporting beam
Balance.
Rail wheel is equipped with the first displacement sensor, and the first displacement sensor is vertically arranged, for incuding in simulation wheel track
The vertical displacement variation of rail wheel, the i.e. amplitude of rail wheel when operation.Mobile supporting roller component is equipped with second displacement sensor, the
Two displacement sensors are laterally arranged, and the lateral displacement for incuding mobile support roller changes.
The top of supporting beam is equipped with exciting device, is used for inputted vibration, the lower part of supporting beam is located at the pillar and second
It is equipped with damper between spring, plays the buffer function to supporting beam, the setting of exciting device and damper is with more true
Simulate the actual motion state of wheel track.
The end of electric pushrod is equipped with pressure sensor, the pressure for induction electric push rod.
In addition, in the present embodiment, it is equipped with groove at the periphery center of rail wheel, is equipped at the periphery center of wheel and groove
The flange of mating connection, can the operating status that is slid along track of true simulating wheel, guarantee test data true and accurate.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (10)
1. a kind of wheel track defect test mechanism, it is characterised in that: including wheel mechanism, rail wheel mechanism, the wheel mechanism packet
Electric pushrod, walking beam, the first spring and vehicle wheel component are included, the electric pushrod is fixed on bearing beam, the bearing beam
Both ends are equipped with column, and the lower section of the bearing beam is equipped with walking beam, and one end of the walking beam and column are rotatablely connected, the work
The other end of dynamic beam and the end of electric pushrod are fixed, and the vehicle wheel component is connect by the first spring with walking beam；The rail
Dao Lun mechanism includes the track wheel assembly with vehicle wheel component CONTACT WITH FRICTION, and one end of the track wheel assembly and driving motor connect
It connects, the track wheel assembly is fixed in supporting beam, and one end of the supporting beam is flexibly connected with pillar, and the pillar is fixed on
On pedestal, the other end lower part of the supporting beam is equipped with the mobile supporting roller component being fixed on the base.
2. wheel track defect test according to claim 1 mechanism, it is characterised in that: the vehicle wheel component includes first bearing
Component, wheel and rotation shaft of wheel, the first bearing component setting are connected in wheel two sides and by rotation shaft of wheel, and described first
One end of spring is fixedly connected with first bearing component, and the other end is fixedly connected with walking beam.
3. wheel track defect test according to claim 2 mechanism, it is characterised in that: between the bearing assembly and walking beam
Equipped with the connecting rod being obliquely installed, one end of the connecting rod is flexibly connected with walking beam, the other end and axis of the connecting rod
Bearing assembly is fixedly connected.
4. wheel track defect test according to claim 1 mechanism, it is characterised in that: the track wheel assembly includes the second axis
Bearing assembly, rail wheel, rail wheel shaft, the second bearing component are arranged in rail wheel two sides and are connected by rail wheel shaft
It connects, the driving motor is connect by yielding coupling with one end of rail wheel shaft.
5. wheel track defect test according to claim 2 or 4 mechanism, it is characterised in that: on the wheel and/or rail wheel
Equipped at least one set groove symmetrical with the wheel, the rail wheel center of circle, it is equipped in the groove and is detachably fixed
Insert.
6. wheel track defect test according to claim 1 mechanism, it is characterised in that: the rail wheel is equipped with the first displacement
Sensor, the mobile supporting roller component are equipped with second displacement sensor.
7. wheel track defect test according to claim 1 mechanism, it is characterised in that: the mobile supporting roller component includes movement
Support roller, supporting roller base, lead screw motor, screw rod and second spring, the mobile support roller are arranged on supporting roller base, the lead screw motor with
Screw rod connection, the supporting roller base are connect with wire rod thread, and the lower part of the support roller is fixed on supporting roller base, the top of the support roller
With supporting beam CONTACT WITH FRICTION, one end of the second spring is fixedly connected with close to the supporting beam lower part of the pillar, and described the
The other end of two springs is fixedly connected with pedestal.
8. wheel track defect test according to claim 7 mechanism, it is characterised in that: the top of the supporting beam is equipped with exciting
Device, the lower part of the supporting beam are equipped with damper between the pillar and second spring.
9. wheel track defect test according to claim 1 mechanism, it is characterised in that: the pillar is equipped with sliding slot, described
One end of supporting beam by connecting shaft and pillar rotation connection and it is vertically movable along the chute.
10. wheel track defect test according to claim 1 mechanism, it is characterised in that: the end of the electric pushrod is equipped with
Pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108162.3U CN209231329U (en) | 2018-12-14 | 2018-12-14 | Wheel track defect test mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108162.3U CN209231329U (en) | 2018-12-14 | 2018-12-14 | Wheel track defect test mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231329U true CN209231329U (en) | 2019-08-09 |
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ID=67507718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822108162.3U Active CN209231329U (en) | 2018-12-14 | 2018-12-14 | Wheel track defect test mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209231329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665125A (en) * | 2020-07-24 | 2020-09-15 | 天津城建大学 | Novel bending shear reciprocating load test device |
-
2018
- 2018-12-14 CN CN201822108162.3U patent/CN209231329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665125A (en) * | 2020-07-24 | 2020-09-15 | 天津城建大学 | Novel bending shear reciprocating load test device |
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