CN111982506A - High-speed testing arrangement in gear monodentate tensile strength - Google Patents
High-speed testing arrangement in gear monodentate tensile strength Download PDFInfo
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- CN111982506A CN111982506A CN202010913589.XA CN202010913589A CN111982506A CN 111982506 A CN111982506 A CN 111982506A CN 202010913589 A CN202010913589 A CN 202010913589A CN 111982506 A CN111982506 A CN 111982506A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a device for testing the tensile strength of a single gear at a medium and high speed, which comprises an upper fixed block, a pre-sliding mechanism, a testing mechanism and a lower fixed block, wherein the testing mechanism is arranged between the upper fixed block and the lower fixed block, the pre-sliding mechanism is arranged between the testing mechanism and the upper fixed block or between the testing mechanism and the lower fixed block, the pre-sliding mechanism can enable the upper fixed block and the pre-sliding mechanism or between the lower fixed block and the pre-sliding mechanism to generate relative motion along the axis of a testing machine, and the maximum displacement of the relative motion enables the testing mechanism to achieve the tensile speed of high-speed tensile testing. The testing mechanism and the upper and lower fixed blocks can generate relative displacement through the pre-sliding mechanism, and when the high-speed tensile test is carried out, the stress end of the testing mechanism can be accelerated firstly through the relative displacement so as to meet the tensile speed, so that the problem that the tooth of the gear to be tested is broken due to overlarge displacement before the tensile speed is not reached by the original mechanism is solved.
Description
Technical Field
The invention relates to the technical field of gear testing, in particular to a device for testing the tensile strength of a single gear at a medium and high speed.
Background
The gear is widely applied as a mechanical transmission part, and mainly utilizes teeth on a wheel rim to transmit motion and power, so that the requirements of different fields on the tensile strength of single teeth of the gear are different, and therefore, the tensile strength of the single teeth is an important parameter of the gear and needs to be tested to ensure the performance of the gear. In the actual working state of the gear, the linear speed at the reference circle reaches more than 0.1m/s, and the single gear of the gear needs to be subjected to medium-high speed tensile test. In the middle and high speed test, the tensile speed of the testing machine is more than 0.1m/s, before reaching the corresponding tensile speed, the test pull head needs to have an acceleration process, and the existing test device, such as the test device disclosed in the utility model patent with publication numbers CN209961597 and CN209656444, the test pull head is fixedly connected, in the acceleration process of reaching the required tensile speed, because the displacement is too large, the tooth of the gear or the test tooth on the pull head can be directly broken, the acceleration requirement can not be met, and the test pull head can only be applicable to the low speed test, but can not be applicable to the high speed test.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a device for testing the tensile strength of a single gear at a medium and high speed.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high-speed testing arrangement in gear monodentate tensile strength, includes fixed block, slide mechanism, accredited testing organization and lower fixed block in advance, go up the fixed block and set up with fixed block down relatively, be used for the centre gripping respectively on the upper and lower chuck of testing machine, accredited testing organization sets up at last fixed block under and between the fixed block, just slide mechanism sets up between accredited testing organization and last fixed block or lower fixed block in advance, slide mechanism can make in advance between fixed block and the slide mechanism in advance or down the fixed block and produce the relative motion along the testing machine axis between the slide mechanism in advance, and the maximum displacement volume of relative motion makes accredited testing organization reach high-speed tensile test's tensile speed. The pre-sliding mechanism is additionally arranged between the testing mechanism and the upper fixing block or the lower fixing block, so that relative displacement can be generated between the testing mechanism and the upper and lower fixing blocks, and when high-speed tensile test is carried out, the stress end of the testing mechanism can be accelerated firstly through the relative displacement so as to meet the tensile speed, thereby solving the problem that the tooth of the gear to be tested is broken due to overlarge displacement before the original mechanism does not reach the tensile speed. The position of the pre-sliding mechanism can be arranged above the testing mechanism or below the testing mechanism, and the specific situation of the testing machine and the testing requirements are comprehensively considered.
Furthermore, in order to reduce measurement errors, the testing mechanism comprises a pull plate, a pull head and a gear profiling tool, one end of the pull head is connected with the pull plate, the other end of the pull head extends outwards, detection teeth for testing are arranged on the inner side of the extending end, and an installation groove for installing a gear to be tested is formed in one side of the gear profiling tool, which is opposite to the detection teeth; the central angle corresponding to the opening of the mounting groove is less than 180 degrees, so that the rapid disassembly and assembly are convenient to realize. The single-tooth contact point of the detection tooth of the pull head and the gear to be detected is positioned on the central axis of the testing machine, so that eccentric load is avoided; the gear profiling tool is manufactured, the consistency of the single tooth position of the gear to be measured is guaranteed, and the repeated positioning precision is improved.
Further, in order to guarantee that the motion is parallel with the axis of atress direction and testing machine, accredited testing organization still includes the guide bar, guide bar one end is connected with the arm-tie, and fixed block and or lower fixed block are connected on the other end, and have one end to be swing joint between guide bar and arm-tie and last fixed block or the lower fixed block, and the other end is fixed connection.
Furthermore, the pre-sliding mechanism comprises a pre-sliding pull rod and a stop block, one end of the pre-sliding pull rod is connected with the upper fixed block or the lower fixed block, the other end of the pre-sliding pull rod is connected with the pull plate, at least one end of the pre-sliding pull rod is movably connected with the upper fixed block or the lower fixed block and the pre-sliding pull rod is movably connected with the pull plate, and the stop block is arranged at the end part of the pre-sliding pull rod at the movable connecting end and used for limiting the movement of the upper fixed block and/or the relative displacement between the lower fixed block and the. The fixed position of the stop block on the pre-sliding pull rod can be adjusted along the axial line of the pre-sliding pull rod, so that the pre-sliding device is suitable for testing at different stretching speeds, and the distance of accelerating pre-sliding is long when the speed is higher.
The pull plate comprises a lower connecting portion of the pre-sliding mechanism and a pull head fixing portion, the pull head fixing portion is arranged below the lower connecting portion of the pre-sliding mechanism and is composed of two clamping plates which are parallel to each other, pin holes transversely penetrating through the clamping plates are formed in the clamping plates, and pull rod mounting holes matched with the number and the positions of the pre-sliding pull rods are formed in the lower connecting portion of the pre-sliding mechanism.
Specifically, the pull head comprises a fixing portion and a detection portion, a pin hole which transversely penetrates through the fixing portion is formed in the fixing portion, the detection portion is integrally connected to one side of the fixing portion and extends downwards to form an inverted L-shaped structure, and the detection teeth are arranged on the inner side face of the detection portion.
The gear profiling tool comprises a fixing portion and a gear installing portion, a transverse through pin hole is formed in the fixing portion, the gear installing portion is integrally connected to one side of the fixing portion and extends upwards to form an L-shaped structure, and an installing groove used for installing a gear to be tested is formed in the gear installing portion.
When the pre-sliding mechanism is arranged between the testing mechanism and the upper fixing block, the structures of the upper fixing block and the lower fixing block are as follows:
the device comprises an upper fixing block, a lower fixing block and a lower fixing block, wherein the upper fixing block comprises an upper clamping portion of a testing machine and an upper connecting portion of a pre-sliding mechanism, the upper clamping portion of the testing machine is integrally connected to the upper connecting portion of the pre-sliding mechanism to form an inverted T-shaped block structure, and an upper connecting portion of the pre-sliding mechanism is provided with a pull rod mounting hole matched with the number and the position of pre-sliding pull rods.
The fixed block includes clamping part, profile modeling frock fixed part under the testing machine down to and be used for the connecting portion that clamping part and profile modeling frock fixed part linked together under the testing machine, the clamping part sets up the below at connecting portion under the testing machine, profile modeling frock fixed part sets up in the top of connecting portion, and comprises two splint that are parallel to each other, be equipped with the pinhole that transversely runs through splint on the splint.
Preferably, the upper fixing block, the pre-sliding mechanism, the testing mechanism and the lower fixing block are all made of Unimax die steel, and the hardness is greater than HRC 52.
The invention has the beneficial effects that:
(1) a pre-sliding mechanism is added to reserve an acceleration distance, and a single-tooth tensile strength test of a medium-high speed gear can be performed;
(2) manufacturing a gear profiling tool to ensure the consistency of the single tooth positions of the gear to be tested, wherein the gear profiling tool can be detached and replaced, and is suitable for testing the tensile strength of various gears;
(3) the pull head and the single-tooth contact point of the gear to be tested are designed on the axial line of the testing machine, so that the eccentric load is avoided;
(4) a guide rod is arranged between the pulling plate and the fixed block, so that the guide positioning is more accurate;
(5) the upper and lower fixed blocks at the mounting position are designed into T-shaped blocks, so that the matching performance with different models of test machines is better;
(6) a plurality of groups of guide rods are arranged between the fixed plate and the pulling plate, so that the guide precision during high-speed pulling is ensured;
(7) the square stop block is selected as the stop block, so that the contact area is larger, and the force and speed are more stable.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic perspective view of a testing device according to the present invention.
FIG. 2 is a schematic side view of the testing device of the present invention.
Fig. 3 is a schematic structural view of an upper fixing block.
Fig. 4 is a structural schematic view of the lower fixing block.
Fig. 5 is a schematic structural view of the pulling plate.
Fig. 6 is a schematic view of the structure of the slider.
Fig. 7 is a schematic structural view of a gear copying tool.
In the figure: 1-upper fixed block, 1 a-upper clamping part of tester, 1 b-upper connecting part of pre-sliding mechanism, 1 c-pull rod mounting hole, 2-screw, 3-stop block, 4-pre-sliding pull rod, 5-pull plate, 5 a-lower connecting part of pre-sliding mechanism, 5 b-pull head fixing part, 5 c-pull rod mounting hole, 5 d-guide hole, 5 e-pin hole, 6-positioning pin, 7-pull head, 7 a-fixing part, 7 b-detecting part, 7 c-detecting tooth, 7 d-pin hole, 8-gear profiling tool, 8 a-fixing part, 8 b-gear mounting part, 8 c-mounting groove, 8 d-opening, 8 e-pin hole, 9-gear to be detected, 10-guide rod, 11-positioning pin, 12-lower fixing block, 12 a-lower clamping part of the testing machine, 12 b-connecting part, 12 c-copying tool fixing part, 12 d-pin hole and 12 e-fixing hole.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
In the present invention, the pre-sliding mechanism is specifically described by taking an example of being disposed between the upper fixed block 1 and the testing mechanism, but the position of the pre-sliding mechanism is not limited to the above-described one connection manner.
As shown in fig. 1 and 2, the device for testing the tensile strength of the single gear at a medium and high speed of the invention comprises an upper fixed block 1, a pre-sliding mechanism, a testing mechanism and a lower fixed block 12, wherein the upper fixed block 1 and the lower fixed block 12 are oppositely arranged and are respectively used for clamping on an upper chuck and a lower chuck of a testing machine, in the embodiment, the testing mechanism is arranged above the lower fixed block 12, the upper part of the testing mechanism is connected with the upper fixed block 1 through the pre-sliding mechanism, the pre-sliding mechanism can enable the upper fixed block 1 and the pre-sliding mechanism or the lower fixed block 12 and the pre-sliding mechanism to generate relative motion along the axis of the testing machine, and the maximum displacement of the relative motion enables the testing mechanism to reach the tensile speed of.
As shown in fig. 3, the upper fixing block 1 includes an upper clamping portion 1a of the testing machine and an upper connecting portion 1b of the pre-sliding mechanism, the upper clamping portion 1a of the testing machine is integrally connected above the upper connecting portion 1b of the pre-sliding mechanism, the two form an inverted T-shaped block structure, and the upper connecting portion 1b of the pre-sliding mechanism is provided with pull rod mounting holes 1c matched with the number and positions of the pre-sliding pull rods 4.
As shown in fig. 4, the lower fixing block 12 includes a testing machine lower clamping portion 12a, a copying tool fixing portion 12c, and a connecting portion 12b for connecting the testing machine lower clamping portion 12a and the copying tool fixing portion 12c together, forming a T-shaped structure; the lower clamping part 12a of the testing machine is arranged below the connecting part 12b, the copying tool fixing part 12c is arranged above the connecting part 12b and is composed of two parallel clamping plates, and pin holes 12d transversely penetrating through the clamping plates are formed in the clamping plates; the connecting portion 12b is further provided with fixing holes 12e matching with the number and positions of the guide rods 10.
As shown in fig. 1 and fig. 2, in the embodiment, the upper and lower connecting ends of the pre-sliding mechanism are movably connected, and specifically include a pre-sliding pull rod 4 and a stopper 3, the pre-sliding pull rod 4 is a long cylinder, the stopper 3 is of a square structure, the upper end of the pre-sliding pull rod 4 passes through a pull rod mounting hole 1c and is connected with an upper fixed block 1, the stopper 3 is arranged at the end of the pre-sliding pull rod, and the stopper 3 is fixed on the pre-sliding pull rod 4 through a screw 2; the lower end passes through a pull rod mounting hole 5c on the pull plate 5, the end part is provided with a stop block 3, and the stop block 3 is fixed at the lower end of a pre-sliding pull rod 4 through a screw 2.
The testing mechanism comprises a pull plate 5, a pull head 7, a gear profiling tool 8 and a guide rod 10, the upper end of the pull head 7 is connected with the pull plate 5, the lower end of the pull head 7 extends downwards, a detection tooth 7c for testing is arranged on the inner side of the extending end, and an installation groove 8c for installing a gear 9 to be tested is arranged on one side of the gear profiling tool 8 opposite to the detection tooth 7 c; the single-tooth contact point of the detection tooth 7c of the pull head 7 and the gear 9 to be detected is positioned on the central axis of the testing machine, so that unbalance loading is avoided; and a gear profiling tool 8 is manufactured, so that the consistency of the single-tooth position of the gear 9 to be measured is ensured, and the repeated positioning precision is improved. In this embodiment, four guide rods 10 are provided and are respectively disposed at four corners of the testing device, the upper end of each guide rod 10 penetrates through the guide hole 5d to be movably connected with the pulling plate 5, and the lower end of each guide rod is fixed in the fixing hole 12e of the lower fixing block 12.
As shown in fig. 5, the pulling plate 5 includes a lower connecting portion 5a of the pre-sliding mechanism and a pulling head fixing portion 5b, the pulling head fixing portion 5b is disposed below the lower connecting portion 5a of the pre-sliding mechanism and is composed of two parallel clamping plates, pin holes 5e transversely penetrating through the clamping plates are disposed on the clamping plates, and 2 pulling rod mounting holes 5c matched with the pre-sliding pulling rod 4 and four guiding holes 5d matched with the guiding rods 10 are disposed on the lower connecting portion 5a of the pre-sliding mechanism.
As shown in FIG. 6, the slider 7 comprises a fixing part 7a and a detecting part 7b, a pin hole 7d transversely penetrating is arranged on the fixing part 7a, the detecting part 7b is integrally connected with one side of the fixing part 7a and extends downwards to form an inverted L-shaped structure, and a detecting tooth 7c is arranged on the inner side surface of the detecting part 7b, when the slider is installed, the fixing part 7a of the slider 7 is clamped between two clamping plates of the pulling plate 5, the pin hole 7d on the slider 7 is aligned with the pin hole 5e on the pulling plate 5, and then a positioning pin 6 is inserted into the pin holes 5e and 7d to fix the slider 7 and the pulling plate 5.
As shown in fig. 7, the gear profiling tool 8 includes a fixing portion 8a and a gear mounting portion 8b, a pin hole 8e passing through in the transverse direction is formed in the fixing portion 8a, the gear mounting portion 8b is integrally connected to one side of the fixing portion 8a and extends upwards to form an L-shaped structure, and a mounting groove 8c for mounting the gear 9 to be tested is formed in the gear mounting portion 8 b; the central angle corresponding to the opening 8d of the mounting groove 8c is smaller than 180 degrees, so that the quick assembly and disassembly are convenient to realize. During installation, the fixing part 8a of the gear profiling tool 8 is clamped between two clamping plates of the lower fixing block 12, pin holes 8e in the gear profiling tool 8 are aligned with pin holes 12d in the lower fixing block 12, and then the positioning pins 11 are inserted into the pin holes 8e and 12d to fix the gear profiling tool 8 and the lower fixing block 12.
The working principle is as follows:
in the embodiment, the material of the gear 9 to be tested is determined according to actual test parts, and the rest of the upper fixing block 1, the pre-sliding mechanism, the testing mechanism, the lower fixing block 12 and other mechanisms are all made of Unimax die steel (the hardness is greater than HRC 52), so that the rigidity is ensured.
The lower fixing block 12 is connected with the gear 9 to be tested through a positioning pin 11; the pull plate 5 is connected with the pull head 7 through a positioning pin 6. Four guide rods 10 penetrate through the lower fixing block 12 and the pulling plate 5, and assembly accuracy is guaranteed. After the pre-sliding pull rod 4 penetrates through the pull plate 5 and the upper fixing block 1, the stop block 3 is installed and locked by the screw 2, and the assembling precision is guaranteed. And respectively clamping the upper fixing block 1 and the lower fixing block 12 on an upper chuck and a lower chuck of the testing machine. After the preparation is finished, starting the testing machine, and carrying out medium-high speed tensile test at a tensile speed of 0.1-10 m/s until the single tooth of the gear 9 to be tested is obviously yielded or broken.
The testing device is suitable for medium and high speed tensile testing with the tensile speed of more than 0.1m/s, mainly solves the problem of acceleration distance in medium and high speed testing and the defects of poor test repeatability and larger random error in the prior art, and provides a standardized platform for medium and high speed testing of the single tooth tensile strength of the gear. When repeated tests are carried out, the repeatability of the tests can be ensured only by installing the gear 9 to be tested in the matched gear profiling tool 8, most of the working procedures of tool adjustment, positioning and the like are saved, and the test efficiency is improved. In the actual meshing working condition of the gear, the gear is meshed in a medium-high speed state generally, so that the test provided by the invention is closer to the actual working condition.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a high-speed testing arrangement in gear monodentate tensile strength which characterized in that: including last fixed block, slide mechanism, accredited testing organization and lower fixed block in advance, go up the fixed block and set up with the fixed block is relative down, be used for the centre gripping respectively on the upper and lower chuck of testing machine, accredited testing organization sets up at last fixed block under and between the fixed block, just slide mechanism sets up between accredited testing organization and last fixed block or lower fixed block in advance, slide mechanism can make in advance between fixed block and the slide mechanism in advance or down the fixed block and slide mechanism in advance between produce the relative motion along the testing machine axis, and the maximum displacement volume of relative motion makes accredited testing organization reach the tensile speed of high-speed tensile test.
2. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 1, is characterized in that: the testing mechanism comprises a pull plate, a pull head and a gear profiling tool, wherein one end of the pull head is connected with the pull plate, the other end of the pull head extends outwards, detection teeth for testing are arranged on the inner side of the extending end, and an installation groove for installing a gear to be tested is formed in one side of the gear profiling tool, which is opposite to the detection teeth; and the single-tooth contact point of the detection tooth of the pull head and the gear to be detected is positioned on the central axis of the testing machine.
3. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 2, is characterized in that: the testing mechanism further comprises a guide rod, one end of the guide rod is connected with the pulling plate, the fixed block is connected with the lower fixed block at the other end of the guide rod, one end of the guide rod is movably connected with the pulling plate, the upper fixed block is connected with the lower fixed block, and the other end of the guide rod is fixedly connected with the pulling plate.
4. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 2, is characterized in that: the pre-sliding mechanism comprises a pre-sliding pull rod and a stop block, one end of the pre-sliding pull rod is connected with the upper fixed block or the lower fixed block, the other end of the pre-sliding pull rod is connected with the pull plate, at least one end of the pre-sliding pull rod is movably connected with the upper fixed block or the lower fixed block and the pre-sliding pull rod is movably connected with the pull plate, and the stop block is arranged at the end part of the pre-sliding pull rod at the movable connecting end and used for limiting the movement of the upper fixed block and/or the relative displacement between the lower fixed block and.
5. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 2, is characterized in that: the pull plate comprises a lower connecting part of the pre-sliding mechanism and a pull head fixing part, the pull head fixing part is arranged below the lower connecting part of the pre-sliding mechanism and is composed of two clamping plates which are parallel to each other, pin holes transversely penetrating through the clamping plates are formed in the clamping plates, and pull rod mounting holes matched with the number and the positions of the pre-sliding pull rods are formed in the lower connecting part of the pre-sliding mechanism.
6. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 2, is characterized in that: the pull head comprises a fixing portion and a detection portion, a pin hole which transversely penetrates through the fixing portion is formed in the fixing portion, the detection portion is integrally connected to one side of the fixing portion and extends downwards to form an inverted L-shaped structure, and the detection teeth are arranged on the inner side face of the detection portion.
7. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 2, is characterized in that: the gear profiling tool comprises a fixing portion and a gear installing portion, a pin hole which transversely penetrates through the fixing portion is formed in the fixing portion, the gear installing portion is integrally connected to one side of the fixing portion and extends upwards to form an L-shaped structure, and an installing groove used for installing a gear to be tested is formed in the gear installing portion.
8. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 1, is characterized in that: go up the fixed block and include clamping part on the testing machine and connecting portion on the sliding mechanism in advance, clamping part integrated connection forms the T-shaped block structure of inversion above the connecting portion on the sliding mechanism in advance on the testing machine, be equipped with on the connecting portion on the pull rod that matches with sliding pull rod quantity and position in advance on the sliding mechanism in advance mounting hole.
9. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 1, is characterized in that: the fixed block includes clamping part, profile modeling frock fixed part under the testing machine to and be used for the connecting portion that links together clamping part and profile modeling frock fixed part under the testing machine, the clamping part sets up the below at connecting portion under the testing machine, profile modeling frock fixed part sets up in the top of connecting portion, and comprises two splint that are parallel to each other, be equipped with the pinhole that transversely runs through splint on the splint.
10. The device for testing the tensile strength of the single gear tooth at the medium and high speed according to claim 1, is characterized in that: the upper fixing block, the pre-sliding mechanism, the testing mechanism and the lower fixing block are all made of Unimax die steel, and the hardness is higher than HRC 52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913589.XA CN111982506A (en) | 2020-09-03 | 2020-09-03 | High-speed testing arrangement in gear monodentate tensile strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913589.XA CN111982506A (en) | 2020-09-03 | 2020-09-03 | High-speed testing arrangement in gear monodentate tensile strength |
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| Publication Number | Publication Date |
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| CN111982506A true CN111982506A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010913589.XA Pending CN111982506A (en) | 2020-09-03 | 2020-09-03 | High-speed testing arrangement in gear monodentate tensile strength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884393A (en) * | 2021-08-25 | 2022-01-04 | 浙江华远汽车科技股份有限公司 | Gear single-tooth static failure strength test tool |
-
2020
- 2020-09-03 CN CN202010913589.XA patent/CN111982506A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884393A (en) * | 2021-08-25 | 2022-01-04 | 浙江华远汽车科技股份有限公司 | Gear single-tooth static failure strength test tool |
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