CN209495927U - It is a kind of to be axially stretched and rotating bending test machine - Google Patents
It is a kind of to be axially stretched and rotating bending test machine Download PDFInfo
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- CN209495927U CN209495927U CN201920042254.8U CN201920042254U CN209495927U CN 209495927 U CN209495927 U CN 209495927U CN 201920042254 U CN201920042254 U CN 201920042254U CN 209495927 U CN209495927 U CN 209495927U
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000005452 bending Methods 0.000 title claims abstract description 42
- 238000002474 experimental method Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009977 dual effect Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
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Abstract
The utility model discloses a kind of axial tension and rotating bending test machine, including driving mechanism, drawing mechanism and bending mechanism, driving mechanism includes the driving spindle of driving motor and the arbor to connect driving motor and experiment exemplar；Load main shaft that drawing mechanism includes first end to be connected with experiment exemplar, with load main shaft second end and be connected to pass through the stretching device for loading main shaft stretching experiment exemplar and the tension sensor to measure pulling force size；Bending mechanism is located at the middle part of load main shaft, including radially pushing the thrust device of load main shaft and between thrust device and load main shaft, the thrust pickup to measure thrust size.Axial tension and rotating bending test machine can apply simultaneously the dual load of axial force and shearing force, and fatigue properties of the measurement experiment exemplar under the effect of dual load to experiment exemplar, keep measurement result more accurate.
Description
Technical field
The utility model relates to technical field of experiment equipment, in particular to a kind of axial tension and rotating bending test machine.
Background technique
In machinery industry, many components bear the dual load of axial force and shearing force simultaneously during operating
Lotus.
The prior art in the experimentation of test Parts characteristic, usually respectively test components in axial force and
The experiment of fatigue properties under shearing force, i.e. rotoflector and axial fatigue test respective complete independently, cause to detect in this way
Result data and components between the service life under actual condition have biggish difference so that experiment can not accurately test
The service life of components.
Therefore, how to improve the accuracy of Parts characteristic test is those skilled in the art's technology urgently to be solved
Problem.
Utility model content
The purpose of the utility model is to provide a kind of axial tension and rotating bending test machines, being capable of test experiments exemplar
Service life under the dual load of axial force and shearing force improves the accuracy of fatigue properties test.
To achieve the above object, the utility model provides a kind of be axially stretched and rotating bending test machine, comprising:
Driving mechanism, the driving mechanism include driving motor and the arbor to connect the driving motor and experiment sample
The driving spindle of part；
Drawing mechanism, load main shaft that the drawing mechanism includes first end to be connected with the experiment exemplar add with described
Main shaft second end is carried to be connected to stretch the stretching device of the experiment exemplar through the load main shaft and to measure pulling force
The tension sensor of size；
Bending mechanism, the bending mechanism are located at the middle part of the load main shaft, including the load is radially pushed to lead
The thrust device of axis and the thrust sensing between the thrust device and the load main shaft, to measure thrust size
Device.
Preferably, the stretching device include the eccentric shaft of the vertical load main shaft and drive the eccentric shaft turns,
To apply the loading motor of pulling force, the second end of one end of the tension sensor and the load main shaft to the experiment exemplar
It is connected, the other end is connected with the eccentric shaft by transmission mechanism.
Preferably, thrust combination bearing is equipped between the second end and the tension sensor of the load main shaft.
Preferably, the loading motor is variable-frequency motor.
Preferably, the bending mechanism includes the fixing seat of the vertical load main shaft, and the fixing seat, which has, is located at institute
The load bracket of load main shaft side is stated, the load bracket has the threaded hole of the vertical load main shaft, the thrust dress
It is set to the lead screw being threadedly engaged with the threaded hole, the load main shaft periphery is equipped with bearing block, and the thrust pickup is located at
Between the bearing block and the end of the lead screw.
Preferably, the lead screw is equipped with rotation hand wheel far from one end of the bearing block.
Preferably, the fixing seat lower part is additionally provided with the guide rail of the vertical load main shaft, and the lower part of the bearing block is set
There is the sliding slot to cooperate with the guide rail.
It preferably, further include testing stand cabinet, the fixing seat is fixed on the upper surface of the testing stand cabinet, the examination
The upper surface for testing platform cabinet is additionally provided with support base to support the driving mechanism.
Axial tension and rotating bending test machine provided by the utility model, including driving mechanism, drawing mechanism and curved
Bent mechanism, driving mechanism include driving spindle and driving motor, and one end of driving spindle is connected with the side of experiment exemplar, another
End is connected with the arbor of driving motor, and experiment exemplar is rotated under the drive of driving motor.Drawing mechanism includes load master
Axis, the first end for loading main shaft are connected with the other side of experiment exemplar, and second end is connected with stretching device and tension sensor, stretches
Device can stretch experiment exemplar by load main shaft, and tension sensor being capable of the drawing born of test experiments exemplar
Power.Bending mechanism is located at the middle part of load main shaft comprising thrust device and thrust pickup, thrust device, which radially pushes, to be added
Main shaft is carried, to make to test exemplar by Moment, thrust pickup is located between thrust device and load main shaft, can survey
Measure thrust size.
Axial tension and rotating bending test machine can apply simultaneously the dual load of axial force and shearing force to experiment exemplar
Lotus, and fatigue properties of the measurement experiment exemplar under the effect of dual load, keep measurement result more accurate.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of axial tension and rotating bending test machine provided by the utility model；
Fig. 2 is the cross-sectional view of Section A-A in Fig. 1.
Wherein, the appended drawing reference in Fig. 1 and Fig. 2 are as follows:
Driving motor 1, driving spindle 2, experiment exemplar 3, load main shaft 4, self-aligning bearing 5, thrust combination bearing 6, pulling force
Sensor 7, transmission mechanism 8, eccentric shaft 9, loading motor 10, guide rail 11, bearing block 12, thrust pickup 13, lead screw 14, handwheel
15。
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically
The utility model is described in further detail for embodiment.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the structure of axial tension and rotating bending test machine provided by the utility model
Schematic diagram；Fig. 2 is the cross-sectional view of Section A-A in Fig. 1.
Axial tension and rotating bending test machine provided by the utility model, as shown in Figure 1, including driving mechanism, drawing
Stretch mechanism and bending mechanism.Driving mechanism is able to drive experiment exemplar 3 and rotates, and drawing mechanism applies axial direction to experiment exemplar 3
Active force, bending mechanism to experiment exemplar 3 apply moment of flexure effect, axial tension and rotating bending test machine can accurately survey
Amount experiment exemplar 3 is stretching and the fatigue properties under moment of flexure collective effect.
Specifically, driving mechanism includes driving motor 1 and driving spindle 2, the two is coaxial with experiment exemplar 3 and along level
Direction setting, 2 one end of driving spindle are connected with the arbor of driving motor 1, and the other end is connected with the side of experiment exemplar 3.Driving
Motor 1 rotates, and experiment exemplar 3 can be driven to rotate together by driving spindle 2, so that test experiments exemplar 3 is in rotation process
In fatigue properties, keep test result more accurate.
In addition, axial tension and rotating bending test machine further include testing stand cabinet, driving mechanism, drawing mechanism and curved
Bent mechanism is all set in the upper surface of testing stand cabinet, and the upper surface of testing stand cabinet is additionally provided with support base, and support base is for branch
Driving motor 1 and driving spindle 2 are supportted, driving spindle 2 is avoided to apply Moment to experiment exemplar 3 because of the effect of gravity.Support
Seat includes two pieces of support plates being axially distributed along driving spindle 2, and two support plates are equipped with the perforative via hole of through-thickness, is driven
It is connected between dynamic main shaft 2 and via hole by bearing, while the end face of driving motor 1 and the support plate far from experiment exemplar 3 pass through spiral shell
It tethers and connects.To avoid two support plates from generating vibration during use, the top of the two is fixedly connected by connecting plate.
Drawing mechanism includes load main shaft 4 and stretching device, and the first end for loading main shaft 4 is connected with experiment exemplar 3, and second
End is connected with stretching device, and stretching device can stretch experiment exemplar 3 especially by structures such as fluid cylinder, levers.Stretch dress
It sets and loads and be additionally provided with tension sensor 7 between main shaft 4, passing through tension sensor 7 can measure the pulling force acted on experiment exemplar 3
Size.
Bending mechanism is located at the middle part of load main shaft 4, and radially pushes load main shaft 4 by thrust device, makes its production
Raw bending, and then the effect to the experiment application moment of flexure of exemplar 3.Thrust device can be specially the structures such as fluid cylinder, lead screw 14, thrust dress
Set and load the thrust pickup 13 being additionally provided between main shaft 4 for measuring thrust size.
In the present embodiment, axial tension and rotating bending test machine pass through drawing mechanism and bending mechanism to experiment sample respectively
Part 3 applies the effect stretched with moment of flexure, while driving experiment exemplar 3 to rotate by driving mechanism, and test experiments exemplar 3 is rotating
While by the fatigue properties under dual load, so that experimental status is more nearly the practical working situation of experiment exemplar 3, in turn
Improve the accuracy of fatigue properties test.
Optionally, stretching device includes loading motor 10, transmission mechanism 8 and eccentric shaft 9, and loading motor 10 is fixed on examination
It tests in platform cabinet, eccentric shaft 9 is connected with the arbor of loading motor 10, and the two is arranged along the vertical direction, in other words, eccentric shaft 9
With the axis of the axis Vertical loading main shaft 4 of loading motor 10.Eccentric shaft 9 is connected with load main shaft 4 by transmission mechanism 8, is passed
Motivation structure 8 includes first connecting rod and second connecting rod, and the two passes through the articulated shaft being arranged along the vertical direction and carries out hinged, first connecting rod
End sleeve be set to the periphery of eccentric shaft 9, the end of second connecting rod is connect with main shaft 4 is loaded by bearing.10 turns of loading motor
Dynamic that eccentric shaft 9 is driven to rotate, eccentric shaft 9 can apply the reciprocating force of horizontal direction to first connecting rod during rotating, this is reciprocal
Power is transferred to experiment exemplar 3 by second connecting rod and load main shaft 4, to make to test the effect that exemplar 3 is stretched power.
Optionally, tension sensor 7 is located between second connecting rod and load main shaft 4, and first end is connected with second connecting rod,
Second end is connected with the end of load main shaft 4, to play the role of test pulling force between the two.In addition, the of load main shaft 4
Thrust combination bearing 6 is equipped between two ends and tension sensor 7, thrust combination bearing 6 is able to bear biggish responsive to axial force, keeps away
The bearing exempted to connect second connecting rod and loaded between main shaft 4 is damaged under the action of axial force.
In addition, loading motor 10 is variable-frequency motor, pass through axial force suffered by the adjustable experiment exemplar 3 of variable-frequency motor
Frequency, and then fatigue properties of the test experiments exemplar 3 under various operating conditions improve axial tension and rotating bending test machine
Survey range.
In the present embodiment, stretching device applies the axis of reciprocating by loading motor 10 and eccentric shaft 9 to experiment exemplar 3
Xiang Li, the actual condition of simulated experiment exemplar 3 keep experimental result more accurate.In addition, loading motor 10 uses variable-frequency electric
Machine expands the load frequency range of fatigue properties test.
Optionally, bending mechanism includes fixing seat and lead screw 14, and fixing seat is including positioned at load 4 side of main shaft and in parallel
The axial load bracket of main shaft 4 is loaded, the lower end for loading bracket is fixedly connected with the upper surface of testing stand cabinet.As shown in Fig. 2,
Load bracket is arranged along the vertical direction, and middle part has the threaded hole of Vertical loading main shaft 4, and lead screw 14 and threaded hole pass through screw thread
Cooperation, load 4 periphery of main shaft are equipped with bearing block 12, are equipped with self-aligning bearing 5 between bearing block 12 and load main shaft 4.The end of lead screw 14
Portion offsets with bearing block 12, can apply radial thrust to bearing block 12 by rotational lead screw 14, and then makes to load the generation of main shaft 4
The purpose for applying Moment to experiment exemplar 3 is realized in bending.Thrust pickup 13 is located at the end of bearing block 12 and lead screw 14
Between, for measuring the size of thrust, it is clear that the thrust device in the present embodiment is lead screw 14.
In addition, for convenient for experimenter's rotational lead screw 14, lead screw 14 is equipped with rotation hand wheel 15 far from one end of bearing block 12.
The periphery of lead screw 14 is additionally provided with positioning locknut, when the thrust between lead screw 14 and load main shaft 4 reaches preset value, rotational positioning lock
Mother can position lead screw 14, and avoiding lead screw 14 that axial movement occurs changes the numerical value of thrust.
Optionally, fixing seat further includes upper surface and the vertical guide rail of Vertical loading main shaft 4 for being fixed on testing stand cabinet
11, the lower part of bearing block 12 is equipped with the sliding slot to cooperate with guide rail 11.Lead screw 14 pushes bearing block 12, guide rail in the horizontal direction
11 and sliding slot can limit load main shaft 4 moving direction, avoid load main shaft 4 generate deflection, cause thrust measurement result not
Accurately.
In the present embodiment, bending mechanism pushes load main shaft 4 by lead screw 14 and load support assorted in the horizontal direction,
It loads main shaft 4 and generates the displacement of horizontal direction along guide rail 11, to realize the purpose for applying moment of flexure to experiment exemplar 3.It is loading
During moment of flexure, the moving range of load main shaft 4 has obtained effectively limiting, it is avoided to generate deflection, ensure that measurement knot
The accuracy of fruit.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Axial tension provided by the utility model and rotating bending test machine are described in detail above.Herein
Specific case is applied to be expounded the principles of the present invention and embodiment, the explanation of above example is only intended to
Help understands the method and its core concept of the utility model.It should be pointed out that coming for those skilled in the art
It says, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these change
Into in the protection scope for also falling into the utility model claims with modification.
Claims (8)
1. a kind of axial tension and rotating bending test machine characterized by comprising
Driving mechanism, the driving mechanism include driving motor (1) and the arbor to connect the driving motor (1) and experiment
The driving spindle (2) of exemplar (3)；
Drawing mechanism, load main shaft (4) that the drawing mechanism includes first end to be connected with experiment exemplar (3), with it is described
Main shaft (4) second end is loaded to be connected to stretch the stretching device and use of experiment exemplar (3) through load main shaft (4)
To measure the tension sensor (7) of pulling force size；
Bending mechanism, the bending mechanism are located at the middle part of load main shaft (4), including radially push the load main shaft
(4) thrust device and the thrust biography between the thrust device and load main shaft (4), to measure thrust size
Sensor (13).
2. axial tension according to claim 1 and rotating bending test machine, which is characterized in that the stretching device includes
The eccentric shaft (9) of vertical load main shaft (4) and the drive eccentric shaft (9) rotate, to apply to the experiment exemplar (3)
The loading motor (10) of pulling force, one end of the tension sensor (7) is connected with the second end of load main shaft (4), another
End is connected with the eccentric shaft (9) by transmission mechanism (8).
3. axial tension according to claim 2 and rotating bending test machine, which is characterized in that the load main shaft (4)
Second end and the tension sensor (7) between be equipped with thrust combination bearing (6).
4. axial tension according to claim 3 and rotating bending test machine, which is characterized in that the loading motor (10)
For variable-frequency motor.
5. axial tension according to any one of claims 1 to 4 and rotating bending test machine, which is characterized in that described
Bending mechanism includes the fixing seat of vertical load main shaft (4), and the fixing seat, which has, is located at load main shaft (4) side
Load bracket, the load bracket has a threaded hole of vertical load main shaft (4), and the thrust device is and the spiral shell
The lead screw (14) that pit is threadedly engaged, the load main shaft (4) periphery are equipped with bearing block (12), thrust pickup (13) position
Between the bearing block (12) and the end of the lead screw (14).
6. axial tension according to claim 5 and rotating bending test machine, which is characterized in that the lead screw (14) is separate
One end of the bearing block (12) is equipped with rotation hand wheel (15).
7. axial tension according to claim 6 and rotating bending test machine, which is characterized in that the fixing seat lower part is also
Guide rail (11) equipped with vertical load main shaft (4), the lower part of the bearing block (12) be equipped with to the guide rail (11)
The sliding slot of cooperation.
8. axial tension according to claim 7 and rotating bending test machine, which is characterized in that further include testing stand case
Body, the fixing seat are fixed on the upper surface of the testing stand cabinet, and the upper surface of the testing stand cabinet is additionally provided with to prop up
Support the support base of the driving mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042254.8U CN209495927U (en) | 2019-01-10 | 2019-01-10 | It is a kind of to be axially stretched and rotating bending test machine |
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| CN201920042254.8U CN209495927U (en) | 2019-01-10 | 2019-01-10 | It is a kind of to be axially stretched and rotating bending test machine |
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| CN209495927U true CN209495927U (en) | 2019-10-15 |
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| CN111307639A (en) * | 2020-03-20 | 2020-06-19 | 济南恒瑞金试验机有限公司 | Floating oil seal running-in abrasion leakage performance testing machine |
| CN111398055A (en) * | 2020-01-13 | 2020-07-10 | 山东永聚医药科技有限公司 | Rub curved type of moulding inspection machine equipment |
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| CN111896398A (en) * | 2020-07-14 | 2020-11-06 | 江苏方天电力技术有限公司 | Fatigue performance assessment test loading device and test method for special welding structure |
| CN112814657A (en) * | 2021-02-25 | 2021-05-18 | 中国科学院地质与地球物理研究所 | Supporting device and test equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398055A (en) * | 2020-01-13 | 2020-07-10 | 山东永聚医药科技有限公司 | Rub curved type of moulding inspection machine equipment |
| CN111307639B (en) * | 2020-03-20 | 2022-06-10 | 济南恒瑞金试验机有限公司 | Floating oil seal running-in abrasion leakage performance testing machine |
| CN111307639A (en) * | 2020-03-20 | 2020-06-19 | 济南恒瑞金试验机有限公司 | Floating oil seal running-in abrasion leakage performance testing machine |
| CN111811800A (en) * | 2020-06-30 | 2020-10-23 | 东风马勒热系统有限公司 | Durable testing arrangement of silicone oil fan flange axle bending moment |
| CN111896398A (en) * | 2020-07-14 | 2020-11-06 | 江苏方天电力技术有限公司 | Fatigue performance assessment test loading device and test method for special welding structure |
| CN112814657A (en) * | 2021-02-25 | 2021-05-18 | 中国科学院地质与地球物理研究所 | Supporting device and test equipment |
| CN112814657B (en) * | 2021-02-25 | 2021-12-24 | 中国科学院地质与地球物理研究所 | Supporting device and test equipment |
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| CN114354410B (en) * | 2021-12-03 | 2024-04-02 | 株洲时代新材料科技股份有限公司 | Metal elastic steel sheet fatigue test equipment and test method |
| CN117182815A (en) * | 2023-10-31 | 2023-12-08 | 万向钱潮股份公司 | Axial force test equipment and test method for constant-speed driving shaft of long-handle inner star wheel |
| CN117182815B (en) * | 2023-10-31 | 2024-03-05 | 万向钱潮股份公司 | Axial force test equipment and test method for constant-speed driving shaft of long-handle inner star wheel |
| CN118243512A (en) * | 2024-05-29 | 2024-06-25 | 常州市昌隆电机股份有限公司 | Intensity detection device of motor shaft casting |
| CN118243512B (en) * | 2024-05-29 | 2024-08-27 | 常州市昌隆电机股份有限公司 | Intensity detection device of motor shaft casting |
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Granted publication date: 20191015 |