CN110487506A - The peeling refitting of automobile balance is set - Google Patents
The peeling refitting of automobile balance is set Download PDFInfo
- Publication number
- CN110487506A CN110487506A CN201910809821.2A CN201910809821A CN110487506A CN 110487506 A CN110487506 A CN 110487506A CN 201910809821 A CN201910809821 A CN 201910809821A CN 110487506 A CN110487506 A CN 110487506A
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- China
- Prior art keywords
- balance
- frame
- refitting
- peeling
- lower frame
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
- G01G23/012—Testing or calibrating of weighing apparatus with load cells comprising in-build calibration weights
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to the device fields that tare weight is offset by zeroing, it is set more particularly to a kind of peeling refitting of automobile balance, including frame on balance and balance lower frame, it is equipped between frame and balance lower frame on the balance and removes tare weight lever mechanism, load cell and lock piece, it is described that remove tare weight lever mechanism include support, balanced lever and counterweight, the support is fixed in the upper surface of balance lower frame and holder top is equipped with the fulcrum connecting with balanced lever, the bottom of frame is connected with the connecting column connecting with balanced lever power arm on the balance, sliding sleeve is slidably connected on the resistance arm, the counterweight is fixedly connected on the bottom of sliding sleeve.It is tested using this programme for automobile wind direction, vehicle weight when can offset test on vertical direction, to achieve the effect that improve measurement sensitivity and save sensor to select cost.
Description
Technical field
The present invention relates to the device fields that tare weight is offset by zeroing, and in particular to a kind of peeling refitting of automobile balance is set.
Background technique
The aerodynamic performance of vehicle mainly consider that vehicle is subject in the process of moving longitudinally, laterally and Vertical Square
Upward power and torque, if these power and the abnormal load of torque are on the car body, oil consumption when will cause high vehicle speeds
Increase and driving safety and stability reduce, so that there are hidden danger for traffic safety.
It is measured for the aerodynamic performance to vehicle, commonly uses six component balance, system to vehicle at X, Y, Z tri-
Torque on tri- directions of power and Mx, My, Mz in direction measures, i.e., to longitudinal direction of car, laterally and vertically on by
Power state is assessed, and then assesses the aerodynamic performance of vehicle, is had to vehicle economy, riding stability and safety
Important reference significance.
But in six square phase test, surveyed due to being mixed with the gravity of vehicle in Z-direction, that is, vertical direction, such as in experiment
In examination, the power for planning the direction Mz of measurement is 500N, but vehicle weight in vertical direction is 50000N, due to the weight of car body
Gap great disparity between power and the power to be surveyed, so that the measurement sensitivity of sensor reduces, the result that measures is inaccurate, if
Accurate data are measured to have to using more accurate sensor, and sensors with auxiliary electrode involves great expense, so that cost increases
Add.
Summary of the invention
The invention is intended to provide a kind of peeling refitting of automobile balance to set, with overcome in traditional approach measurement sensitivity it is lower,
Using measurement sensor higher cost the problem of.
To achieve the above object, the invention provides the following technical scheme:
The peeling refitting of automobile balance is set, including frame and balance lower frame on balance, on the balance under frame and balance
It is equipped between frame and removes tare weight lever mechanism, load cell and lock piece, it is described that tare weight lever mechanism is gone to include support, balance
Lever and counterweight, the support is fixed in the upper surface of balance lower frame and holder top is equipped with the branch connecting with balanced lever
Balanced lever is divided into power arm and resistance arm by point, fulcrum, and the bottom of frame is connected with and balanced lever power on the balance
The connecting column of arm connection, slidably connects sliding sleeve on the resistance arm, the counterweight is fixedly connected on the bottom of sliding sleeve, institute
Balanced lever is stated equipped with the traction piece for drawing to counterweight.
The principle of the present invention and the utility model has the advantages that
(1) by going tare weight lever mechanism to offset the vehicle weight on vertical direction, so as to vertical direction
When power measures, since the self weight of vehicle is cancelled, so that load cell is only needed to be measured on vertical direction
Power measure, so that the requirement to the load cell sensitivity for measurement is reduced, to reduce equipment
Use cost.
(2) simultaneously, in contrast to traditional measurement method, since sensor is needed to the vehicle on vertical direction itself
Gravity and the power for needing to measure in the vertical direction are detected.And between the power that the gravity and needs of vehicle measure difference compared with
Greatly, the power usually tested is only the 1% of vehicle weight, so that the sensitivity decrease of measurement, so that the data of measurement are wrong
Difference.And this programme by the self gravity of vehicle offset after, load cell is only needed to the power for needing to measure on vertical direction,
To improve sensitivity when measurement.
Compared to traditional approach, after this programme is by going tare weight lever mechanism to offset light weight on vertical direction, make
It obtains load cell on the one hand not needing to measure to gravity, has saved the cost for choosing sensor；On the other hand due to
The gravity of vertical direction is cancelled, so that the sensitivity of measurement is higher.
Further, the resistance arm of the balanced lever is longer than power arm.
The utility model has the advantages that the quality that can reach reduction counterweight is imitated by lever formula it is found that passing through the length for extending resistance arm
Fruit, for using the big counterweight of quality, the cost of this programme is lower.
Further, plane fluid bearing is provided between frame on the top of the connecting column and balance.
Tare weight lever mechanism parasitic capacity and frictional force as caused by mechanically deform when in use is removed the utility model has the advantages that reducing,
Its influence to the power to be measured on vertical direction is reduced, and then improves the sensitivity of measurement.
Further, rotating hydraulic bearing is provided on the junction of the balanced lever power arm and connecting column.
Tare weight lever mechanism parasitic capacity and frictional force as caused by mechanically deform when in use is removed the utility model has the advantages that reducing,
Its influence to the power to be measured on vertical direction is reduced, and then improves the sensitivity of measurement.
Further, the receiving for placing load cell is additionally provided on the balance between frame and balance lower frame
Chamber, the both ends of the load cell are connected on balance on frame and balance lower frame.
The utility model has the advantages that closing lock piece after the gravity of vehicle is cancelled, start experiment test, so that in vertical direction
Test force load cell directly can be passed to by frame on balance, to reduce loss of the power in transmittance process,
Improve the accuracy of test.
Further, the upper surface of frame is concordant with ground on the balance, and the balance lower frame is nuzzled ground in advance, and holds
Receive chamber side be equipped with protective shell, the protective shell inner wall be equipped with protective layer.
The utility model has the advantages that balance lower frame is nuzzled ground, makes frame on balance concordant with ground, saved space occupied.
Moisture-proof anticorrosive protection is carried out to the load cell in accommodating chamber by protective layer simultaneously, protects load cell not to reach
The effect being damaged extends the service life of equipment.
Further, described that tare weight lever mechanism is gone to be equipped with brake member.
The utility model has the advantages that, by starting brake member, carrying out locking limit after the balance of ready to balance lever both ends to counterweight, allowing weight
Code will not deviate again during testing and carrying out, and shorten the time of counterweight adjustment, while also ensure the stability of test,
The frequency that measurement is repeated several times is reduced, the efficiency of test is improved.
Further, the upper surface of the balance lower frame is equipped with buffer layer.
The utility model has the advantages that counterweight is contacted with balance lower frame when counterweight is not used, reduction counterweight is touched with balance lower frame
It hits, counterweight is protected, so that it is guaranteed that the sensitivity of measurement.
Further, described that tare weight lever mechanism is gone to be symmetrical arranged about the longitudinal axis of frame on balance.
The utility model has the advantages that sharing the gravity of vehicle, avoid the length of balanced lever too long, so that cost of manufacture increases；Simultaneously
Also share the weight for choosing counterweight, further ensure the reliability of device.
Further, the load cell is electrically connected with display instrument.
The utility model has the advantages that the data to measurement are shown, operator is facilitated to understand the case where testing.
Detailed description of the invention
Fig. 1 is longitudinal partial sectional view that the peeling refitting of one automobile balance of the present embodiment is set；
Fig. 2 is the axonometric drawing that tare weight lever mechanism is removed in Fig. 1；
Fig. 3 is the axonometric drawing that lever is connect with connecting column in Fig. 1；
Fig. 4 is the partial isometric of Fig. 1；
Fig. 5 is longitudinal partial sectional view that the peeling refitting of two automobile balance of this implementation is set.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: frame 1 on balance, connecting column 101, convex block 102, balance lower frame 2,
Remove tare weight lever mechanism 3, support 301, balanced lever 302, counterweight 303, sliding sleeve 304, bull stick 305, load cell 4, lock
Stop member 5, rotating hydraulic bearing 6, plane fluid bearing 7, brake member 8, inflator 9, piston plate 901, piston rod 902, air inlet list
To valve 903, outgassing nonreturn valve 904, contraction section 905, trunnion section 906, diffuser 907.
Embodiment one:
The peeling refitting of automobile balance is set, basic as shown in Figure 1, including frame 1 and balance lower frame 2 on balance, under balance
Frame 2 is embedded under earth's surface frozen soil line, pours wall-forming along frozen soil layer using concrete, frame 1 is concordant with ground on balance, day
The side of flat lower frame 2 is provided with several threaded holes, and threaded hole is threaded with fastening bolt, and balance lower frame 2 passes through tight
Fixing bolt is fixedly connected with concrete layer.
Accommodating chamber is additionally provided on balance between frame 1 and balance lower frame 2, the side of accommodating chamber is connected with protective shell, protects
The top of protective case is concordant with ground, and the bottom of protective shell is welded on the side of balance lower frame 2, and the inner wall of protective shell is equipped with perpendicular
Straight sliding slot, the side of frame 1 is connected with the sliding block connecting with sliding slot vertical sliding on balance, is coated on the inner sidewall of protective shell
Protective layer.
As shown in connection with fig. 4, load cell 4, model are placed in accommodating chamber are as follows: LH-Z50, specified range are 0~3t,
Specified range is 5000N in the present embodiment, and it is 2 using voltage that output sensitivity, which is 2.0 ± 0.2Mv/v, degree of protection IP65,
~10V, maximum working voltage 15V, the both ends on load cell 4 are fixed on balance under the lower surface and balance of frame 1
On the upper surface of frame 2, the output end of load cell 4 is electrically connected with RS485 interface, the input of RS485 interface and display
End is electrically connected, and display is HKC-T7000 in the present embodiment.Buffer layer, this reality are also bonded on the upper surface of balance lower frame 2
It applies protective layer in example and selects spongy layer.And lock piece 5 is provided on balance between frame 1 and balance lower frame 2, lock piece 5 is
Electronic strut, specific model are as follows: SKF-CAHB-10, voltage are 12~24V, and degree of protection IP66, environment temperature is -40
~85 DEG C, electronic strut is equipped with the locking controller being electrically connected with load cell 4.
Circular groove is additionally provided on balance on the lower surface of frame 1, plane fluid bearing 7 is fixedly connected in groove,
The inner ring of plane fluid bearing 7 is fixedly connected with vertical connecting column 101.As shown in connection with fig. 3, the bottom one of connecting column 101
The convex block 102 of rectangle is formed, the middle part of convex block 102 offers circular through-hole, and rotation liquid is also fixedly connected in through-hole
Last item holds 6
In conjunction with shown in Fig. 1 and Fig. 4, it is equipped between frame 1 and balance lower frame 2 on balance and goes tare weight lever mechanism 3, this reality
It applies in example, the longitudinal axis there are two the settings of tare weight lever mechanism 3, about frame 1 on balance is gone to be symmetrical arranged.As shown in connection with fig. 2,
Removing tare weight lever mechanism 3 includes support 301, balanced lever 302 and counterweight 303, and the quality of counterweight is chosen in the present embodiment
700kg~1000kg, is 800kg in the present embodiment, and support 301 is fixedly connected on the upper of balance lower frame 2 by fastening bolt
On surface, the upper surface of support 301 is provided with the fulcrum hinged with balanced lever 302.Fulcrum divides balanced lever 302 for resistance
Arm and power arm, the length of resistance arm are longer than the length of power arm, and the ratio between resistance arm and power arm are 4:1, specially power arm
Length be 2 meters, resistance arm be 8 meters.The end of power arm turns integrally formed with what 6 inner ring of rotating hydraulic bearing was rotatablely connected
Bar 305.
Also level slidably connects sliding sleeve 304 on resistance arm, and the top of sliding sleeve 304 is connected with for sliding sleeve
304 traction pieces drawn, traction piece is dragger, specific model are as follows: cw-m300/m500, power supply are in the present embodiment
Ac200V~ac220v, power are 400~450W.Counterweight 303 is fixedly connected on the bottom of sliding sleeve 304, and sliding sleeve 304 is separate
The side of connecting column 101 is coaxially connected with slider disc, and the brake member 8 for braking to counterweight 303 is connected in slider disc,
Brake member 8 is motor brake gear motor, concrete model are as follows: GONGJI-SVB18, voltage rating 220V, volume in the present embodiment
Determining power is 100W~370W.The brake controller being electrically connected with load cell 4, concrete model are provided on brake member 8 are as follows:
AMP-35W when fluctuation is not detected in load cell 4, that is, shows counterweight 303 by the weight of vehicle before opening lock body
Power is offset, and is transmitted on electric signal to the brake controller of brake member 8 by load cell 4, is made this moment by brake controller
It obtains brake member 8 to brake to counterweight 303, counterweight 303 is allowed no longer to slide on resistance arm.
Specific implementation process is as follows:
Before test, electric signal is sent to locking controller by load cell 4, is locked and is locked by locking controller
Stop member 5, allows on balance distance remains unchanged between frame 1 and balance lower frame 2.The automobile by pending test is pushed into balance again
On upper frame 1, since vehicle is pushed on balance after frame 1, the stress of power arm side increases, and is sent out by load cell 4
Electric signal controls the brake member 8 closed on counterweight 303 by brake controller to the brake controller on counterweight 303 out, allows weight
Code 303 slides on resistance arm, finally makes 302 both ends stress balance of balanced lever, to pass through counterweight 303 for automobile gravity
It offsets, achievees the purpose that vehicle weight will not be tested and have an impact.After the stress balance of lever both ends, load cell 4 is received
The fluctuation sensed is 0, passes out electric signal to the brake controller of brake member 8, to control by load cell 4 this moment
Brake member 8 processed brakes, and control counterweight 303 no longer slides, and then sends electricity to locking controller by load cell 4 again
Signal closes lock piece 5, so that frame 1 can carry out vertical sliding in stress on balance, so that dynamometry passes
For sensor 4 when measuring, the active force of vertical direction is only left power to be tested, so that the measurement of load cell 4 is sensitive
Degree greatly improves.Simultaneously because automobile gravity is cancelled, to make the selection range space of load cell 4 bigger, and then drop
The cost of low purchase load cell 4.
Meanwhile during measuring, tare weight is eliminated by plane fluid bearing 7 and rotating hydraulic bearing 6
Parasitic capacity and frictional force as caused by mechanically deform between lever part, to further improve the spirit of load cell 4
Sensitivity.
Embodiment two:
Embodiment two and embodiment one the difference is that: as shown in connection with fig. 5, also pass through fastening on balance lower frame 2
Bolt is connected with inflator 9, and vertical sliding is connected with piston plate 901 in inflator 9, and the top of piston plate 901 is welded with vertically
Piston rod 902, piston rod 902 vertically through inflator 9 top and on balance frame 1 bottom surface weld, piston rod 902
Cooperate with 9 vertical sliding of inflator.It is communicated with air inlet pipe on the left of 9 lower part of inflator, is provided with breather check valve in air inlet pipe
903, when the air pressure in air inlet pipe is greater than the air pressure in inflator 9, gas enters in inflator 9 from air inlet pipe, air inlet pipe
The other end be connected on the gas tank being placed in earth's surface；Inflator is communicated with escape pipe on the right side of 9 lower part, and escape pipe is equipped with
Outgassing nonreturn valve 904, when the air pressure in inflator 9 is greater than the air pressure in escape pipe, gas in inflator 9 is from inflator 9
It drains into escape pipe, the other end of escape pipe is communicated with air pump, and the outlet side of air pump is communicated with dust removing tube, and dust removing tube includes shrinking
Section 905, trunnion section 906 and diffuser 907, and diffuser 907 is connected to by trunnion section 906 with contraction section 905.Trunnion section 906
Dirt hole is provided on side wall.Diffuser 907 is connected to the vacuum cleaner being placed in earth's surface.
Specific implementation process is as follows:
Balance lower frame 2 drives piston rod 902 to move down, and the gas in inflator 9 is pressed into air pump by piston rod 902
In, by air pump to the gas of dust removing tube conveying high-pressure, gas enters from contraction section 905, and diffuser 907 is discharged, and in trunnion
Negative pressure is formed at section 906 to adsorb the dust in accommodating chamber by dirt hole under the action of negative pressure.
Embodiment three:
Embodiment three and embodiment two the difference is that: dust removing tube is provided with more piece, the diffusion in every section dust removing tube
Section 907 is connected to the contraction section 905 of adjacent section dedusting section.To improve to the dust collection rate in accommodating chamber.
Claims (10)
1. the peeling refitting of automobile balance is set, it is characterised in that: including frame on balance and balance lower frame, frame on the balance
It is equipped between balance lower frame and removes tare weight lever mechanism, load cell and lock piece, it is described to go the tare weight lever mechanism to include
Support, balanced lever and counterweight, the support is fixed in the upper surface of balance lower frame and holder top is equipped with and balanced lever
Balanced lever is divided into power arm and resistance arm by the fulcrum of connection, fulcrum, and the bottom of frame is connected with and balances on the balance
The connecting column of lever moving arm connection, slidably connects sliding sleeve on the resistance arm, the counterweight is fixedly connected on sliding sleeve
Bottom, the balanced lever is equipped with traction piece for drawing to counterweight.
2. automobile balance peeling refitting as described in claim 1 is set, it is characterised in that: the resistance arm of the balanced lever is longer than
Power arm.
3. automobile balance peeling refitting as claimed in claim 2 is set, it is characterised in that: on the top and balance of the connecting column
Plane fluid bearing is provided between frame.
4. automobile balance as claimed in claim 3 peeling refitting is set, it is characterised in that: the balanced lever power arm with connect
Rotating hydraulic bearing is provided on the junction of column.
5. automobile balance peeling refitting as claimed in claim 4 is set, it is characterised in that: frame and balance lower frame on the balance
The accommodating chamber for placing load cell is additionally provided between frame, the both ends of the load cell are connected to balance upper ledge
On frame and balance lower frame.
6. automobile balance as claimed in claim 5 peeling refitting is set, it is characterised in that: on the balance upper surface of frame with
Ground is concordant, and the balance lower frame is nuzzled ground in advance, and the side of accommodating chamber is equipped with protective shell, sets on the protective shell inner wall
Matcoveredn.
7. automobile balance peeling refitting as claimed in claim 6 is set, it is characterised in that: described that tare weight lever mechanism is gone to be equipped with
Brake member.
8. automobile balance peeling refitting as claimed in claim 7 is set, it is characterised in that: the upper surface of the balance lower frame is set
There is buffer layer.
9. automobile balance peeling refitting as claimed in claim 8 is set, it is characterised in that: described to go tare weight lever mechanism about day
The longitudinal axis of flat upper frame is symmetrical arranged.
10. automobile balance peeling refitting as claimed in claim 9 is set, it is characterised in that: the load cell is electrically connected with
Display instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809821.2A CN110487506B (en) | 2019-08-29 | 2019-08-29 | Automobile balance weight removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809821.2A CN110487506B (en) | 2019-08-29 | 2019-08-29 | Automobile balance weight removing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110487506A true CN110487506A (en) | 2019-11-22 |
| CN110487506B CN110487506B (en) | 2020-12-01 |
Family
ID=68555144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910809821.2A Active CN110487506B (en) | 2019-08-29 | 2019-08-29 | Automobile balance weight removing device |
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| Country | Link |
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| CN (1) | CN110487506B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112254867A (en) * | 2020-10-19 | 2021-01-22 | 厦门五福印务有限公司 | Wind pressure measuring device |
| CN112556543A (en) * | 2020-12-07 | 2021-03-26 | 西安航天动力测控技术研究所 | Device and method for measuring integrated clearance of missile empennage sleeve |
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