CN205280385U - Bogie frame pressure test's vertical supplementary loading device - Google Patents
Bogie frame pressure test's vertical supplementary loading device Download PDFInfo
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- CN205280385U CN205280385U CN201520943498.5U CN201520943498U CN205280385U CN 205280385 U CN205280385 U CN 205280385U CN 201520943498 U CN201520943498 U CN 201520943498U CN 205280385 U CN205280385 U CN 205280385U
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Abstract
Bogie frame pressure test's vertical supplementary loading device belongs to railway vehicle bogie framework pressure test's supplementary loading device field, and it uses through having the cooperation of lever rocking arm and L type actuator connecting piece to vertical hydraulic actuator pressure load moment equivalence that will be originally less is shifted to the outside of original vertical loading test bench, leads to the unable loaded problem of hydraulic actuator because of the space is not enough in order to overcome. The spherical pair principle of the built -in joint bulb of connecting seat can be guaranteed to do all can on hydraulic actuator pressure direction still keeps the lower terminal surface with the vertical load of vertically orientation atress load point to the unit under test, precision that consequently can not the influence test test result. The use of lever rocking arm can show the configuration demand that reduces the specified drive of hydraulic actuator power to realize reducing the experimental degree of difficulty and saving actuator purchasing cost's effect. The device still has the simple structure practicality in addition, low cost, advantages such as facilitate promotion popularization.
Description
Technical field
The utility model belongs to the secondary load device field of bogies for railway vehicles framed intensity test, is specifically related to the vertical secondary load device of a kind of bogie frame strength trial.
Background technology
Owing to the bogie frame of rail vehicle is the core component of bearing body weight, transmitting tractive power and brake power, after its Design Theory completes, the bogie frame to primiparity is usually also needed to carry out loadintensity test. framed intensity test comprises test of static strength and Stromeyer test, test of static strength by framework is carried out static stress load test check whether framework can produce tension set under the compound action of theoretical maximum load, Stromeyer test be then continuous simulation train bear under normal running environment comprehensive by power environment, to verify the reasonableness of bogie frame mechanical structure, by obtaining the dynamic stress data of key part and check whether framework can produce fatigue cracking, identify undiscovered tired risk point in test of static strength further, and be Curve guide impeller offer reference frame.
As shown in Figure 1, strength trial adopts hydraulic pressure actuator 5 to load force driving element when point 7 does straight reciprocating motion as on unit under test by power usually, its top and bottom are connected with parts to be measured by being built-in with the Connection Block 6 of joint ball head respectively, or the iron bottom plate with testing table is connected, to play the effect of motivating force applying or deoscillator. In addition, Connection Block 6 is divided into multiple different type usually, to adapt to the different situations of coaxial rotation connection, stud connection or planar end docking respectively.
On the other hand, the actuator bracket loading test platform of bogies for railway vehicles framed intensity test is once assembling is fixing, its inner solid space is then determined constant, and all actuators in underproof framework and each orientation thereof all only has unique locus and the space attitude mutually mated. But, the train bogie carrying out strength trial is needed but to comprise multiple different model, and dimensional structure is bigger along the difference on vertically vertical, this often causes being applicable to the actuator bracket loading test platform of the framed intensity test of a kind of rain model, although space in the horizontal direction is abundant, without the need to adjustment, but it still cannot adapt to the Plumb load demand of the different model bogie of another money, causes whole Plumb load testing table all need to readjust height location and again assemble. Especially, when the novel low-floor bogie that vertical thickness is less or centroidal distance ground is lower occurs, even there will be Plumb load testing table cannot reduce further, and the shortest its length H of hydraulic pressure actuator 5 is still greater than on unit under test to be subject to power to load the difficult situation of the ultimate range D between point 7 and Plumb load testing table iron bottom plate 8, cause unless set up hole groove further in iron bottom plate corresponding position, otherwise cannot be just the situation that hydraulic pressure actuator 5 is mated and is loaded on unit under test.
Practical novel content
Need frequent adjustment height to adapt to the vertical intensity test loading demand of the bogie frame of different model to solve the Plumb load testing table of existing bogie frame strength trial, and when and special, the minimum loading of Plumb load testing table is highly still greater than on the novel low-floor bogie of needs test Plumb load point to the ultimate range on ground, even if the length causing the shortest hydraulic pressure actuator is still greater than on unit under test by the situation of the ultimate range between power loading point and testing table iron floor, cause the technical problem that vertical intensity load test cannot carry out, the utility model provides the vertical secondary load device of a kind of bogie frame strength trial.
The technical scheme that the utility model technical solution problem is taked is as follows:
The vertical secondary load device of bogie frame strength trial, it comprises shaft seating, lever pivoted arm, L-type actuator web member and rotating shaft, and described shaft seating is vertically placed, and the iron bottom plate of its lower end and Plumb load testing table is connected; Lever pivoted arm horizontal positioned, it comprises before lever section and lever fulcrum after section, lever, and lever fulcrum is by the upper axis of rotating shaft and shaft seating even; Described L-type actuator web member comprises integrated vertical section and horizontal boom, the lower end of vertical section is fixed on the upper surface of section end before lever, and the horizontal boom of L-type actuator web member extends to form cantilever further laterally along the extending direction of section end before lever.
Before described lever, section is the long end of lever, and after lever, section is the short end of lever, and before lever, the length of section is more than or equal to the length of section after lever; After described lever, the end of section is provided with the first mount pad of vertical direction; The lower surface of horizontal boom front end is provided with the 2nd mount pad.
The beneficial effects of the utility model are: the vertical secondary load device of this bogie frame strength trial by will have lever pivoted arm and L-type actuator web member with the use of, thus by the equivalence of originally less vertical hydraulic pressure actuator pressure-loaded moment and be transferred to the outside of original Plumb load testing table, and then solve and cause the old technical problem that hydraulic pressure actuator cannot load with vertical intensity load test cannot carry out because of insufficient space. The secondary principle of the sphere of the joint ball head that Connection Block is built-in can guarantee that power hydraulic pressure actuator pressure direction still keeps vertically being loaded on unit under test with vertical direction and loaded on the lower surface of point by power, therefore can not affect the precision of experimental test result. The use of lever pivoted arm can significantly reduce the configuration needs to hydraulic pressure actuator nominal drive power, thus realizes reducing test difficulty and the effect saving actuator purchase cost. In addition the vertical secondary load device of this bogie frame strength trial also has simple and practical, easy to operate, with low cost, is convenient to promote the advantages such as universal.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing hydraulic pressure actuator and the Connection Block being built-in with joint ball head;
The stereographic map of the vertical secondary load device of Fig. 2 the utility model bogie frame strength trial;
Fig. 3 is the application schematic diagram of the vertical secondary load device of the utility model bogie frame strength trial.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figure 2 to Figure 3, the vertical secondary load device of bogie frame strength trial of the present utility model comprises shaft seating 1, lever pivoted arm 2, L-type actuator web member 3 and rotating shaft 4, shaft seating 1 is vertically placed, and the iron bottom plate 8 of its lower end and Plumb load testing table is connected. Lever pivoted arm 2 horizontal positioned, it comprises before lever section 2-2 and lever fulcrum 2-3, lever fulcrum 2-3 after section 2-1, lever by the upper axis of rotating shaft 4 and shaft seating 1 even. L-type actuator web member 3 comprises integrated vertical section 3-1 and horizontal boom 3-2, the lower end of vertical section 3-1 is fixed on the upper surface of section 2-1 end before lever, and the horizontal boom 3-2 of L-type actuator web member 3 extends to form cantilever further laterally along the extending direction of section 2-1 end before lever.
Before lever, section 2-1 is the long end of lever, after lever, section 2-2 is the short end of lever, before lever, the length of section 2-2 after the length >=lever of section 2-1, can change the arm of force of lever construction by adjusting the length ratio both it, thus reduces the configuration needs to hydraulic pressure actuator 5 nominal drive power. After lever, the end of section 2-2 is provided with the first mount pad 2-2-1 of vertical direction, and it is for being connected with by loading point 7 by power on face type Connection Block 6 and unit under test. The lower surface of horizontal boom 3-2 front end be provided with the 2nd mount pad 3-2-1 its for being connected with by the upper end of another face type Connection Block 6 with hydraulic pressure actuator 5.
During the vertical secondary load device of embody rule bogie frame of the present utility model strength trial, it is connected by the first mount pad 2-2-1 of section 2-2 end after lever by a face type Connection Block 6 and unit under test load point 7 by power, again the 2nd mount pad 3-2-1 of horizontal boom 3-2 front end is connected by the upper end of another face type Connection Block 6 with hydraulic pressure actuator 5, again the lower end of hydraulic pressure actuator 5 and Plumb load testing table iron bottom plate 8 are connected, can realize along the vertical secondary load device transmission of bogie frame strength trial of the present utility model and being loaded on unit under test and loading on the lower surface of point 7 by power by the lateral pressure of hydraulic pressure actuator 5, thus the lateral pressure indirectly completing hydraulic pressure actuator 5 loads. under the sphere side effect of the built-in joint ball head of Connection Block 6, the stress direction of lower surface loading point 7 on the upper end of hydraulic pressure actuator 5 and unit under test by power, all still along vertical back transfer, therefore can not affect the precision of experimental test result because producing should itemizing of other direction.
Claims (2)
1. the vertical secondary load device of bogie frame strength trial, it is characterized in that: this device comprises shaft seating (1), lever pivoted arm (2), L-type actuator web member (3) and rotating shaft (4), described shaft seating (1) is vertically placed, and the iron bottom plate (8) of its lower end and Plumb load testing table is connected; Lever pivoted arm (2) horizontal positioned, it comprises before lever section (2-2) and lever fulcrum (2-3) after section (2-1), lever, and lever fulcrum (2-3) is by the upper axis of rotating shaft (4) and shaft seating (1) even; Described L-type actuator web member (3) comprises integrated vertical section (3-1) and horizontal boom (3-2), the lower end of vertical section (3-1) is fixed on the upper surface of section (2-1) end before lever, and the horizontal boom (3-2) of L-type actuator web member (3) extends to form cantilever further laterally along the extending direction of section (2-1) end before lever.
2. the vertical secondary load device of bogie frame strength trial as claimed in claim 1, it is characterized in that: before described lever, section (2-1) is the long end of lever, after lever, section (2-2) is the short end of lever, and before lever, the length of section (2-1) is more than or equal to the length of section (2-2) after lever; After described lever, the end of section (2-2) is provided with first mount pad (2-2-1) of vertical direction; The lower surface of horizontal boom (3-2) front end is provided with the 2nd mount pad (3-2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943498.5U CN205280385U (en) | 2015-11-24 | 2015-11-24 | Bogie frame pressure test's vertical supplementary loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943498.5U CN205280385U (en) | 2015-11-24 | 2015-11-24 | Bogie frame pressure test's vertical supplementary loading device |
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| Publication Number | Publication Date |
|---|---|
| CN205280385U true CN205280385U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943498.5U Expired - Fee Related CN205280385U (en) | 2015-11-24 | 2015-11-24 | Bogie frame pressure test's vertical supplementary loading device |
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| CN (1) | CN205280385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352749A (en) * | 2015-11-24 | 2016-02-24 | 长春轨道客车股份有限公司 | Vertical auxiliary loading device for bogie frame strength test |
-
2015
- 2015-11-24 CN CN201520943498.5U patent/CN205280385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352749A (en) * | 2015-11-24 | 2016-02-24 | 长春轨道客车股份有限公司 | Vertical auxiliary loading device for bogie frame strength test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |