CN218787972U - Three-point bending fatigue testing device for axle of rail transit vehicle - Google Patents
Three-point bending fatigue testing device for axle of rail transit vehicle Download PDFInfo
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- CN218787972U CN218787972U CN202222693440.2U CN202222693440U CN218787972U CN 218787972 U CN218787972 U CN 218787972U CN 202222693440 U CN202222693440 U CN 202222693440U CN 218787972 U CN218787972 U CN 218787972U
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- axletree
- axle
- point bending
- bending fatigue
- support
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Abstract
The utility model belongs to the technical field of the axletree test, concretely relates to rail transit vehicle axletree three point bending fatigue test device, including the mount pad be provided with the support on the mount pad the upper surface of support is provided with two axletree bases that are used for supporting the axletree side by side the left and right sides symmetry of support is provided with the actuating cylinder the force sensor is connected to the upper end of actuating cylinder, force sensor's upper end articulates there is the connecting rod, two the upper end of connecting rod is articulated with the both ends of clamp plate respectively, the middle part and the axletree of clamp plate contact for exert pressure to the axletree, the utility model discloses a two axletree bases support the axletree, exert sinusoidal load through the actuating cylinder that sets up in the left and right sides to the middle part of axletree to the three point bending fatigue test of axletree has been realized.
Description
Technical Field
The utility model belongs to the technical field of the axletree test, concretely relates to rail transit vehicle axletree three point bending fatigue test device.
Background
Along with the development of the technology, the rail transit vehicle becomes the first choice vehicle for people to go out, in order to realize connection between two places more conveniently and rapidly, the rail transit vehicle always pursues high speed and heavy load, and along with the promotion of speed grade and axle load, for the axletree that the vehicle atress concentrates on, the operational environment becomes severer. The axle is one of the most important core components of the rail transit vehicle, and the working stability of the axle is directly related to the running safety of the vehicle; therefore, before being put into use, the axle needs to be tested, and the static fatigue test of the axle is an important item;
at present, no device for carrying out three-point bending fatigue test on the axles of rail transit vehicles, particularly motor train units, is available in China.
SUMMERY OF THE UTILITY MODEL
The utility model provides a track transportation vehicles axletree three point bending fatigue test device to above-mentioned problem.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a track transportation vehicles axletree three-point bending fatigue test device, includes the mount pad be provided with the support on the mount pad the upper surface of support is provided with two axletree bases that are used for supporting the axletree side by side the left and right sides symmetry of support is provided with actuating cylinder force sensor is connected to actuating cylinder's upper end, force sensor's upper end articulates there is the connecting rod, two force sensor's upper end is articulated with the both ends of clamp plate respectively, the middle part and the axletree of clamp plate contact for exert pressure to the axletree.
Furthermore, the upper surface of the mounting seat is provided with support frames which correspond to the actuating cylinders one to one, and the support frames are used for supporting and protecting the actuating cylinders.
And furthermore, the upper end of the force sensor is fixedly connected with a connecting block, the lower end of the connecting rod is hinged with the connecting block, guide columns are arranged on the front side and the rear side of the actuating cylinder, and the guide columns are arranged between the support frame and the connecting block.
Furthermore, a sliding groove is formed in the upper surface of the support, and the axle base is arranged in the sliding groove in a sliding mode.
Furthermore, the upper surface of the axle base is connected with a supporting block, and the middle part of the supporting block is provided with a bearing groove for placing an axle so as to more conveniently support the axle.
Furthermore, a groove for pressing the axle is arranged in the middle of the pressure plate, so that the contact surface of the pressure plate and the axle is matched with the appearance of the axle.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model supports the axle through two axle bases, and applies sinusoidal load to the middle part of the axle through the actuating cylinders arranged on the left and right sides, thereby realizing three-point bending fatigue test of the axle;
the utility model ensures that the actuating cylinder can not bend under large load by arranging the guide post, and ensures that the acting force output by the actuating cylinder is always kept on a vertical straight line, thereby meeting the requirement of large load output of the utility model;
the utility model discloses force transducer's upper end is articulated with the clamp plate, when having avoided the deviation to appear in the actuating cylinder pressure of both sides, and the phenomenon that the card was pause appears in being connected of force transducer and clamp plate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, a mounting seat-1, a bracket-2, an axle-3, an axle base-4, an actuating cylinder-5, a force sensor-6, a connecting rod-7, a pressure plate-8, a supporting frame-9, a connecting block-10, a guide post-11, a sliding chute-12, a supporting block-13, a bearing groove-14 and a groove-15.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is further explained by the following embodiments.
As shown in fig. 1, the three-point bending fatigue testing device for the axle of the rail transit vehicle comprises a mounting seat 1, wherein a support 2 is arranged on the mounting seat 1, sliding grooves 12 are formed in the upper surface of the support 2, an axle base 4 is slidably arranged in the sliding grooves 12, supporting blocks 13 are connected to the upper surface of the axle base 4, bearing grooves 14 for placing the axle 3 are formed in the middle of the supporting blocks 13, actuating cylinders 5 are symmetrically arranged on the left side and the right side of the support 2, supporting frames 9 which correspond to the actuating cylinders 5 one by one are arranged on the upper surface of the mounting seat 1, the supporting frames 9 are used for supporting and protecting the actuating cylinders 5, force sensors 6 are connected to the upper ends of the actuating cylinders 5, connecting blocks 10 are fixedly connected to the upper ends of the force sensors 6, the lower ends of the connecting rods 7 are hinged to the connecting blocks 10, guide columns 11 are arranged on the front side and the rear side of the actuating cylinders 5, the guide columns 11 are installed between the supporting frames 9 and the connecting blocks 10, the upper ends of the two connecting rods 7 are respectively hinged to two ends of the pressing plates 8, the middle of the pressing plates 8 are used for applying pressure to the axle 3, and grooves 15 for pressing the middle of the axle 3.
The essential features and advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (6)
1. The utility model provides a track transportation vehicles axletree three point bending fatigue test device which characterized in that: including mount pad (1) be provided with support (2) on mount pad (1) the upper surface of support (2) is provided with two axletree bases (4) that are used for supporting axletree (3) side by side the left and right sides symmetry of support (2) is provided with actuating cylinder (5) force sensor (6) are connected to the upper end of actuating cylinder (5), the upper end of force sensor (6) articulates there is connecting rod (7), two the upper end of connecting rod (7) is articulated with the both ends of clamp plate (8) respectively, the middle part and the axletree (3) of clamp plate (8) contact for exert pressure to axletree (3).
2. The rail transit vehicle axle three-point bending fatigue testing device of claim 1, wherein: the upper surface of the mounting seat (1) is provided with support frames (9) which correspond to the actuating cylinders (5) one by one, and the support frames (9) are used for supporting and protecting the actuating cylinders (5).
3. The rail transit vehicle axle three-point bending fatigue testing device of claim 2, wherein: the upper end fixedly connected with connecting block (10) of force sensor (6), the lower extreme and the connecting block (10) of connecting rod (7) are articulated actuating cylinder (5) all are provided with guide post (11) in both sides around, guide post (11) are installed between support frame (9) and connecting block (10).
4. The rail transit vehicle axle three-point bending fatigue testing device of claim 1, wherein: the upper surface of the bracket (2) is provided with a sliding groove (12), and the axle base (4) is arranged in the sliding groove (12) in a sliding manner.
5. The rail transit vehicle axle three-point bending fatigue testing device of claim 1, wherein: the upper surface of the axle base (4) is connected with a supporting block (13), and the middle part of the supporting block (13) is provided with a bearing groove (14) for placing the axle (3).
6. The rail transit vehicle axle three-point bending fatigue testing device of claim 1, wherein: and a groove (15) for applying pressure to the axle (3) is arranged in the middle of the pressure plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222693440.2U CN218787972U (en) | 2022-10-12 | 2022-10-12 | Three-point bending fatigue testing device for axle of rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222693440.2U CN218787972U (en) | 2022-10-12 | 2022-10-12 | Three-point bending fatigue testing device for axle of rail transit vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218787972U true CN218787972U (en) | 2023-04-04 |
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ID=86504549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222693440.2U Active CN218787972U (en) | 2022-10-12 | 2022-10-12 | Three-point bending fatigue testing device for axle of rail transit vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218787972U (en) |
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2022
- 2022-10-12 CN CN202222693440.2U patent/CN218787972U/en active Active
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