CN109931846A - Automobile hanging height testing instrument and automotive wheel damping torque detector - Google Patents
Automobile hanging height testing instrument and automotive wheel damping torque detector Download PDFInfo
- Publication number
- CN109931846A CN109931846A CN201910283150.0A CN201910283150A CN109931846A CN 109931846 A CN109931846 A CN 109931846A CN 201910283150 A CN201910283150 A CN 201910283150A CN 109931846 A CN109931846 A CN 109931846A
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- Prior art keywords
- axle sleeve
- connecting plate
- mandrel
- hole
- rear sight
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Abstract
The invention discloses a kind of automobile hanging height testing instruments, including attachment base component and vertical ruler component, attachment base component includes connecting plate, mandrel and axle sleeve, the ruler component that hangs down includes scale, rear sight base and vertical block assembly, the quantity at least two of axle sleeve, one end of axle sleeve is equipped with inner bolt hole, axle sleeve is screwed on tire bolt by inner bolt hole, the other end of axle sleeve is used for fixed connecting plate, the centre of rear sight base is equipped with through-hole, mandrel passes through through-hole and is fixed on connecting plate, one end of rear sight base connects scale, the other end connects the block assembly that hangs down, bearing is equipped between mandrel and rear sight base, it can be relatively rotated between rear sight base and connecting plate, block assembly hang down for keeping scale perpendicular to the ground, it is clearance fit between bearing and mandrel, hanging down ruler component can the opposite sliding on the axial direction of the mandrel with mandrel.The present invention is able to solve inconvenient for operation, not accurate enough the problem of measurement.The invention also discloses a kind of automotive wheel damping torque detectors.
Description
Technical field
The present invention relates to automobile technical fields, damp more particularly to a kind of automobile hanging height testing instrument and automotive wheel
Moment detector.
Background technique
With the rapid development of auto industry, automobile has become people and goes on a journey indispensable one of the vehicles.Vapour
Vehicle ownership increases year by year, and more and more people have private car, and automobile is popularized to the manufacture and design of auto parts and components
Bring development.
The suspension of automobile is the key part of vehicle, it not only carries vehicle sprung mass, it is necessary to meet operation stabilization
Property and riding comfort requirement, and fatigue resistance wants high.Antifatigue index is needed to test to examine, on vehicle
Being tested is exactly a kind of method of inspection.Suspension height is judged by the variation of the preceding bodywork height at the end of of measurement test
Variation, to determine the performance of pendulum spring fatigue resistance.
In the prior art, the detection of suspension height is mostly just completed using steel ruler, concrete operations are by steel ruler
One datum mark is directed at the center of core wheel, and keeps steel ruler perpendicular to the ground, finds out the calibration point on vehicle body, then records this two o'clock
Distance, but this method is inconvenient for operation, measures not accurate enough.In addition, the survey to automotive wheel damping torque in the prior art
When amount, complicated equipment is needed, there is also operate not convenient enough problem.
Summary of the invention
For this purpose, an object of the present invention is to provide a kind of automobile hanging height testing instrument, it is inconvenient for operation to solve,
Measure not accurate enough problem.
A kind of automobile hanging height testing instrument, including attachment base component and vertical ruler component, the attachment base component include connecting
Fishplate bar, mandrel and axle sleeve, the vertical ruler component includes scale, rear sight base and vertical block assembly, and the quantity of the axle sleeve is at least two
A, one end of the axle sleeve is equipped with inner bolt hole, the axle sleeve is screwed on tire bolt by the inner bolt hole, the axle sleeve
The other end for fixing the connecting plate, the centre of the rear sight base is equipped with through-hole, and the mandrel passes through the through-hole and solid
It is scheduled on the connecting plate, one end of the rear sight base connects the scale, and the other end connects the vertical block assembly, the mandrel
It is equipped with bearing between the rear sight base, can be relatively rotated between the rear sight base and the connecting plate, the vertical block assembly is used
It is clearance fit, the vertical ruler component and the core between the bearing and the mandrel in keeping the scale perpendicular to the ground
Axis can the opposite sliding on the axial direction of the mandrel.
The automobile hanging height testing instrument provided according to the present invention is when in use revolved one end of axle sleeve by inner bolt hole
Connect on the tire bolt of automobile to be measured, calibration point of the certain point as vehicle body chosen on vehicle body, guarantee this calibration point and
The line at mandrel center be perpendicular to the ground, then by adjusting the relative position between vertical ruler component and mandrel, make scale with
Body sticker leans on, and convenient for reading the measurement numerical value on scale, in the effect of block assembly gravity of hanging down, scale perpendicular to the ground, guarantees always
The center of mandrel is overlapped with the center of wheel, it is therefore possible for the detected that mandrel center to vehicle body on the distance of calibration point be exactly in wheel
The heart to vehicle body calibration point distance, in this way, the numerical value by calibration point before and after comparative test on scale, it is high to obtain suspension
The accurate data of variation is spent, it is easy to operate using the automobile hanging height testing instrument, it can quick, convenient, accurately complete outstanding
Hang the measurement of height.
In addition, above-mentioned automobile hanging height testing instrument according to the present invention, can also have the following additional technical features:
Further, the rear sight base is equipped with card slot far from one end of the vertical block assembly, and the scale is caught in the card
In slot.
Further, the side of the one end of the rear sight base far from the vertical block assembly is equipped with screw hole, passes through screw
The fixation hole on the screw hole and the scale is sequentially passed through, the scale is fixed in the card slot.
Optionally, the connecting plate is elongated, and the both ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, the axis
The quantity of set is two, and two axle sleeves are separately fixed in the axle sleeve connecting hole at both ends.
Further, the mandrel is fixed on the middle position of the connecting plate.
Optionally, the connecting plate is in Y-shaped, and three ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, institute
The quantity for stating axle sleeve is three, and three axle sleeves are separately fixed in three axle sleeve connecting holes.
Further, the vertical block assembly includes plumbing bar and vertical block, and one end of the plumbing bar is inserted into the connecting plate, and
It is fixed together with the connecting plate, the other end of the plumbing bar is fixedly connected with the vertical block.
It is another object of the present invention to propose a kind of automotive wheel damping torque detector, with solution, the device is complicated,
Problem inconvenient for operation.
A kind of automotive wheel damping torque detector, including attachment base component, Digital Electronic Torque Wrench and connection sleeve, it is described
Attachment base component includes connecting plate, mandrel and axle sleeve, and the quantity at least two of the axle sleeve, one end of the axle sleeve is equipped with interior
The axle sleeve is screwed on tire bolt by screw hole by the inner bolt hole, and the other end of the axle sleeve is for fixing the company
Fishplate bar, one end of the mandrel are fixed on the connecting plate, the other end of the mandrel by the connection sleeve with it is described
Digital Electronic Torque Wrench links together.
One end of axle sleeve is passed through interior spiral shell when in use by the automotive wheel damping torque detector provided according to the present invention
Hole is screwed on the tire bolt of automobile to be measured, and automobile is jacked up, and makes wheel hanging, is held the handle of Digital Electronic Torque Wrench, is made
Spanner drives vehicle wheel rotation, and wheel starts to rotate moment, and the numerical value that digital display screen is shown is exactly damping torque, the Automobile wheel dropping
Buddhist nun's moment detector structure is simple, operates more convenient.
In addition, above-mentioned automotive wheel damping torque detector according to the present invention, can also have following additional technology
Feature:
Optionally, the connecting plate is elongated, and the both ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, the axis
The quantity of set is two, and two axle sleeves are separately fixed in the axle sleeve connecting hole at both ends, and the mandrel is fixed on institute
State the middle position of connecting plate.
Optionally, the connecting plate is in Y-shaped, and three ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, institute
The quantity for stating axle sleeve is three, and three axle sleeves are separately fixed in three axle sleeve connecting holes.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the assembly structure diagram of the automobile hanging height testing instrument of one embodiment of the invention；
Fig. 2 is the configuration schematic diagram of the automobile hanging height testing instrument of one embodiment of the invention；
Fig. 3 is the connecting plate of strip and the structural schematic diagram of axle sleeve；
Fig. 4 is the connecting plate of Y-shaped and the structural schematic diagram of axle sleeve；
Fig. 5 is that automobile hanging height testing instrument (connecting plate is strip) is mounted on the structural schematic diagram on tire；
Fig. 6 is that automobile hanging height testing instrument (connecting plate is Y-shaped) is mounted on the structural schematic diagram on tire；
Fig. 7 is the assembly structure diagram of the automotive wheel damping torque detector of another embodiment of the present invention；
Fig. 8 is that automotive wheel damping torque detection (connecting plate is strip) is mounted on the structural schematic diagram on tire.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Several embodiments of the invention are given in attached drawing.But the present invention can be to be permitted
Mostly different form is realized, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes
It is more thorough and comprehensive to the disclosure.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement for illustrative purposes only, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.Term " and or " used herein include the arbitrary of one or more relevant listed items and
All combinations.
Please refer to Fig. 1 to Fig. 6, the automobile hanging height testing instrument that one embodiment of the invention provides, including attachment base component
With vertical ruler component, the attachment base component includes connecting plate 11, mandrel 12 and axle sleeve 13, the vertical ruler component include scale 21,
Rear sight base 22 and vertical block assembly 23 should be equipped with scale, the quantity at least two of the axle sleeve 13, the axle sleeve 13 on scale 21
One end be equipped with inner bolt hole, the axle sleeve 13 is screwed on the bolt of tire 100 by the inner bolt hole, the axle sleeve 13
The other end is equipped with through-hole 221 for fixing the connecting plate 11, the centre of the rear sight base 22, and the mandrel 12 passes through described logical
Hole 221 is simultaneously fixed on the connecting plate 11, is specifically fixed in the mandrel connecting hole 112 in connecting plate 11, the rear sight base
22 one end connects the scale 21, and the other end connects the vertical block assembly 23, between the mandrel 12 and the rear sight base 22
It equipped with bearing 24, therefore, can be relatively rotated between the rear sight base 22 and the connecting plate 11, the vertical block assembly 23 is for making
The scale 21 is perpendicular to the ground always, is clearance fit between the bearing 24 and the mandrel 12, and the vertical ruler component is (main
Want cuing scale 21) it opposite on the axial direction of the mandrel 12 can be slided with the mandrel 12, to guarantee scale 21 and vehicle body
It reclines.
When in use, one end of axle sleeve 13 is screwed on the bolt of tire 100 of automobile to be measured by inner bolt hole first,
It realizes the connection of attachment base component and tire 100, calibration point of the certain point as vehicle body is then chosen on vehicle body, guarantees this
Calibration point and the line at 12 center of mandrel are perpendicular to the ground, then by adjusting the opposite position between vertical ruler component and mandrel 12
It sets, leans on scale 21 with body sticker, convenient for reading the measurement numerical value on scale 21, in the effect of 23 gravity of block assembly of hanging down, scale
21 rotate around mandrel 12, so that scale 21 is always perpendicular to the ground, then guarantee that the center of mandrel 12 is overlapped with the center of wheel, because
This, the distance of calibration point is exactly distance of the wheel center to vehicle body calibration point on 12 center to vehicle body of mandrel measured, in this way, logical
Numerical value of the comparative test front and back calibration point on scale 21 is crossed, the accurate data of suspension height variation can be obtained, using the vapour
Vehicle suspension height detector, it is easy to operate, it can quick, convenient, accurately complete the measurement of suspension height.
Specifically, the rear sight base 22 is equipped with card slot 222 far from one end of the vertical block assembly 23, the scale 21 is caught in
In the card slot 222.In order to guarantee stability maintenance of the scale 21 in card slot 222, hang down in the rear sight base 22 far from described
The side of one end of block assembly 23 is equipped with screw hole 223, sequentially passes through the screw hole 223 and the scale by screw 30
The scale 21 is fixed in the card slot 222 by the fixation hole (not shown) on 21.
Specifically, the vertical block assembly 23 includes plumbing bar 231 and vertical block 232, the company is inserted into one end of the plumbing bar 231
It in fishplate bar 11, and is fixed together with the connecting plate 11, the other end of the plumbing bar 231 is fixedly connected with the vertical block 232.
As an alternative embodiment, please focus on refering to Fig. 3 and Fig. 5, the connecting plate 11 is elongated, the company
The both ends of fishplate bar 11 are respectively equipped with an axle sleeve connecting hole 111, and the quantity of the axle sleeve 13 is specially two, two axle sleeves 13
It is separately fixed in the axle sleeve connecting hole 111 at both ends.The mandrel 12 is specifically fixed on the interposition of the connecting plate 11
It sets.
In addition, as another optional embodiment, please focus on refering to Fig. 4 and Fig. 6, the connecting plate 11 is in Y-shaped,
Three ends of the connecting plate 11 are respectively equipped with an axle sleeve connecting hole 111, and the quantity of the axle sleeve 13 is three, described in three
Axle sleeve 13 is separately fixed in three axle sleeve connecting holes 111.
Since the tire bolt set-up mode of different automobile types, quantity are had nothing in common with each other, and pass through the specific of selection connecting plate 11
The automobile hanging height testing instrument can be used for different vehicles by the axle sleeve 13 of structure (strip or Y-shaped) and corresponding number
Type.
Please refer to Fig. 7 and Fig. 8, another embodiment of the present invention provides a kind of automotive wheel damping torque detector, including
Attachment base component, Digital Electronic Torque Wrench 40 and connection sleeve 50, the attachment base component includes connecting plate 11, mandrel 12 and axle sleeve
13, one end of the quantity at least two of the axle sleeve 13, the axle sleeve 13 is equipped with inner bolt hole, will be described by the inner bolt hole
Axle sleeve 13 is screwed on the bolt of tire 100, and the other end of the axle sleeve 13 is for fixing the connecting plate 11, the mandrel 12
One end be fixed on the connecting plate 11, be specifically fixed in the mandrel connecting hole 112 in connecting plate 11, the mandrel 12
The other end is linked together by the connection sleeve 50 with the Digital Electronic Torque Wrench 40.
Above-mentioned automotive wheel damping torque detector, when in use, by one end of axle sleeve 13 by inner bolt hole be screwed in
It surveys on the bolt of the tire 100 of automobile, realizes the connection of attachment base component and tire 100, then jack up automobile, keep wheel outstanding
Sky holds the handle of Digital Electronic Torque Wrench 40, and spanner is made to drive vehicle wheel rotation, and wheel starts to rotate moment, and digital display screen is shown
Numerical value be exactly damping torque, the automotive wheel damping torque detector structure is simple, operate it is more convenient.
As an alternative embodiment, please focus on refering to Fig. 3 and Fig. 8, the connecting plate 11 is elongated, the company
The both ends of fishplate bar 11 are respectively equipped with an axle sleeve connecting hole 111, and the quantity of the axle sleeve 13 is specially two, two axle sleeves 13
It is separately fixed in the axle sleeve connecting hole 111 at both ends.The mandrel 12 is specifically fixed on the interposition of the connecting plate 11
It sets.
As another optional embodiment, please focus on refering to Fig. 4, the connecting plate 11 is in Y-shaped, the connecting plate
11 three ends are respectively equipped with an axle sleeve connecting hole 111, and the quantity of the axle sleeve 13 is three, and three axle sleeves 13 are distinguished
It is fixed in three axle sleeve connecting holes 111.
Since the tire bolt set-up mode of different automobile types, quantity are had nothing in common with each other, and pass through the specific of selection connecting plate 11
The automotive wheel damping torque detector can be used for not by the axle sleeve 13 of structure (strip or Y-shaped) and corresponding number
Same vehicle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of automobile hanging height testing instrument, which is characterized in that including attachment base component and vertical ruler component, the attachment base is closed
Part includes connecting plate, mandrel and axle sleeve, and the vertical ruler component includes scale, rear sight base and vertical block assembly, the quantity of the axle sleeve
At least two, one end of the axle sleeve is equipped with inner bolt hole, and the axle sleeve is screwed on tire bolt by the inner bolt hole,
The other end of the axle sleeve is equipped with through-hole for fixing the connecting plate, the centre of the rear sight base, and the mandrel passes through described
Through-hole is simultaneously fixed on the connecting plate, and one end of the rear sight base connects the scale, and the other end connects the vertical block assembly,
It is equipped with bearing between the mandrel and the rear sight base, can be relatively rotated between the rear sight base and the connecting plate, it is described to hang down
Block assembly is clearance fit, the vertical ruler component between the bearing and the mandrel for keeping the scale perpendicular to the ground
It can the opposite sliding on the axial direction of the mandrel with the mandrel.
2. automobile hanging height testing instrument according to claim 1, which is characterized in that the rear sight base is far from the vertical block
One end of component is equipped with card slot, and the scale is caught in the card slot.
3. automobile hanging height testing instrument according to claim 2, which is characterized in that the rear sight base is far from the vertical block
The side of one end of component is equipped with screw hole, sequentially passes through the fixation hole on the screw hole and the scale by screw,
The scale to be fixed in the card slot.
4. automobile hanging height testing instrument according to claim 1, which is characterized in that the connecting plate is elongated, institute
The both ends for stating connecting plate are respectively equipped with an axle sleeve connecting hole, and the quantity of the axle sleeve is two, and two axle sleeves are fixed respectively
In the axle sleeve connecting hole at both ends.
5. automobile hanging height testing instrument according to claim 4, which is characterized in that the mandrel is fixed on the connection
The middle position of plate.
6. automobile hanging height testing instrument according to claim 1, which is characterized in that the connecting plate is in Y-shaped, described
Three ends of connecting plate are respectively equipped with an axle sleeve connecting hole, and the quantity of the axle sleeve is three, and three axle sleeves are solid respectively
It is scheduled in three axle sleeve connecting holes.
7. automobile hanging height testing instrument according to claim 1, which is characterized in that the vertical block assembly include plumbing bar and
Hang down block, and one end of the plumbing bar is inserted into the connecting plate, and is fixed together with the connecting plate, the other end of the plumbing bar
It is fixedly connected with the vertical block.
8. a kind of automotive wheel damping torque detector, which is characterized in that including attachment base component, Digital Electronic Torque Wrench and connection
Sleeve, the attachment base component include connecting plate, mandrel and axle sleeve, the quantity at least two of the axle sleeve, the axle sleeve
One end is equipped with inner bolt hole, the axle sleeve is screwed on tire bolt by the inner bolt hole, the other end of the axle sleeve is used for
The fixed connecting plate, one end of the mandrel are fixed on the connecting plate, and the other end of the mandrel passes through the connection
Sleeve links together with the Digital Electronic Torque Wrench.
9. automotive wheel damping torque detector according to claim 8, which is characterized in that the connecting plate is in strip
Shape, the both ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, and the quantity of the axle sleeve is two, two axle sleeve difference
It is fixed in the axle sleeve connecting hole at both ends, the mandrel is fixed on the middle position of the connecting plate.
10. automotive wheel damping torque detector according to claim 8, which is characterized in that the connecting plate is in Y word
Shape, three ends of the connecting plate are respectively equipped with an axle sleeve connecting hole, and the quantity of the axle sleeve is three, three axle sleeves
It is separately fixed in three axle sleeve connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283150.0A CN109931846A (en) | 2019-04-10 | 2019-04-10 | Automobile hanging height testing instrument and automotive wheel damping torque detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283150.0A CN109931846A (en) | 2019-04-10 | 2019-04-10 | Automobile hanging height testing instrument and automotive wheel damping torque detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931846A true CN109931846A (en) | 2019-06-25 |
Family
ID=66989715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910283150.0A Pending CN109931846A (en) | 2019-04-10 | 2019-04-10 | Automobile hanging height testing instrument and automotive wheel damping torque detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931846A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036162A (en) * | 1988-03-11 | 1989-10-11 | 爱德华韦勒股份有限公司 | Torque wrench |
| CN201637519U (en) * | 2009-11-09 | 2010-11-17 | 中国人民解放军总后勤部军事交通运输研究所 | Detection device for brake torque of trailer |
| JP3168249U (en) * | 2010-10-14 | 2011-06-02 | 台湾固而美工業股▲ふん▼有限公司 | Surveying instrument |
| CN203240991U (en) * | 2013-05-10 | 2013-10-16 | 奇瑞汽车股份有限公司 | Novel measurement tool of automobile body height |
| CN104048589A (en) * | 2014-06-30 | 2014-09-17 | 长城汽车股份有限公司 | Device for measuring vertical displacement of automotive suspension |
| CN108562390A (en) * | 2018-05-23 | 2018-09-21 | 兴机电器有限公司 | Circuit breaker chassis determines torque crank |
| CN109000842A (en) * | 2018-06-11 | 2018-12-14 | 浙江零跑科技有限公司 | A kind of portable based on PID control drags torque measuring device and method |
-
2019
- 2019-04-10 CN CN201910283150.0A patent/CN109931846A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036162A (en) * | 1988-03-11 | 1989-10-11 | 爱德华韦勒股份有限公司 | Torque wrench |
| CN201637519U (en) * | 2009-11-09 | 2010-11-17 | 中国人民解放军总后勤部军事交通运输研究所 | Detection device for brake torque of trailer |
| JP3168249U (en) * | 2010-10-14 | 2011-06-02 | 台湾固而美工業股▲ふん▼有限公司 | Surveying instrument |
| CN203240991U (en) * | 2013-05-10 | 2013-10-16 | 奇瑞汽车股份有限公司 | Novel measurement tool of automobile body height |
| CN104048589A (en) * | 2014-06-30 | 2014-09-17 | 长城汽车股份有限公司 | Device for measuring vertical displacement of automotive suspension |
| CN108562390A (en) * | 2018-05-23 | 2018-09-21 | 兴机电器有限公司 | Circuit breaker chassis determines torque crank |
| CN109000842A (en) * | 2018-06-11 | 2018-12-14 | 浙江零跑科技有限公司 | A kind of portable based on PID control drags torque measuring device and method |
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Application publication date: 20190625 |
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