CN208219371U - Continuous pavement eight takes turns smoothness measuring equipment - Google Patents
Continuous pavement eight takes turns smoothness measuring equipment Download PDFInfo
- Publication number
- CN208219371U CN208219371U CN201820519893.4U CN201820519893U CN208219371U CN 208219371 U CN208219371 U CN 208219371U CN 201820519893 U CN201820519893 U CN 201820519893U CN 208219371 U CN208219371 U CN 208219371U
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- Prior art keywords
- displacement
- test wheel
- screw rod
- vehicle frame
- measuring equipment
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- A Measuring Device Byusing Mechanical Method (AREA)
- Road Repair (AREA)
Abstract
The utility model discloses a kind of continuous pavements eight to take turns smoothness measuring equipment, its key points of the technical solution are that: including vehicle frame, the two sides of vehicle frame are equipped with preceding bridge and rear axle, four wheels are separately installed with below preceding bridge and rear axle, the probe being equipped with close to the vehicle frame of rear axle, the lower section of probe is equipped with the test wheel for detecting surface evenness, the two sides of test wheel are equipped with support frame, vehicle frame close to probe is equipped with motor, the output shaft of motor is in be arranged straight down and be connected with screw rod, screw rod runs through and is threadedly connected to the one end of support frame far from test wheel, vehicle frame is equipped with limitation support frame along the position-limit mechanism of screw rod circular motion；This eight wheels smoothness measuring equipment accelerates the speed of test wheel lifting by way of screw rod transmission, improves working efficiency；And by displacement switch device, so that the time that test wheel reaches ground can be precisely controlled in time during screw rod band dynamic test wheel moves to ground, be conducive to the precision for improving test wheel road pavement flatness detection.
Description
Technical field
The utility model relates to road surface fields of measurement, in particular to a kind of continuous pavement eight takes turns smoothness measuring equipment.
Background technique
Eight wheel smoothness measuring equipments are primarily used for the detecting instrument of surface evenness, existing eight wheel smoothness measuring equipment such as Fig. 1 institute
Show, including vehicle frame 1, the two sides of vehicle frame 1 are equipped with preceding bridge 11 and rear axle 12, and the lower section of preceding bridge 11 and rear axle 12 is separately installed with eight
Wheel 13, close to the probe 14 that is equipped with of vehicle frame 1 of rear axle 12,14 lower section of popping one's head in is connected with for detecting surface evenness
The two sides of test wheel 2, test wheel 2 are equipped with support frame 3, offer several threaded holes on support frame 3 along the vertical direction, on vehicle frame 1
It is provided with the mounting rack 15 of fixing support rack 3 straight down, is equipped with along the vertical direction several on mounting rack 15, support frame 3 passes through
The threaded connection of bolt and threaded hole is fixed on mounting rack 15, and then test wheel 2 is fixed on vehicle frame 1.
Eight above-mentioned wheel smoothness measuring equipments during use, need to test wheel 2 and are moved on road surface, make test wheel 2
Lateral wall be in contact with road surface, after needing one by one to unscrew bolt at this time, then support frame 3 moved down, until examination
After testing wheel 2 and ground face contact, then bolt is tightened one by one and is fixed, after test, and needed one one, bolt
It is a unscrew after, then support frame 3 moved up, until after test wheel 2 is detached from ground, then bolt tightened to progress one by one
Fixed, in the detection process, the lifting process of test wheel 2 is more troublesome for entire eight wheels smoothness measuring equipment.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of continuous pavement eight take turns it is smooth
Instrument is spent, there is test wheel to go up and down convenient advantage.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of continuous pavement eight
Smoothness measuring equipment, including vehicle frame are taken turns, the two sides of the vehicle frame are equipped with preceding bridge and rear axle, are separately installed with four below preceding bridge and rear axle
A wheel, the probe being equipped with close to the vehicle frame of rear axle, the lower section of probe are equipped with the test wheel for detecting surface evenness, institute
The two sides for stating test wheel are equipped with support frame, are equipped with motor close to the vehicle frame of the probe, the output shaft of the motor is in vertical
Down-set and be connected with screw rod, the screw rod runs through and is threadedly connected to the one end of support frame far from test wheel, the vehicle frame
It is equipped with the position-limit mechanism that limitation support frame as described above moves in a circle along screw rod.
Through the above technical solutions, when needing to test surface evenness, it, can be by opening when being moved to test wheel on road surface
Dynamic motor, the output shaft rotation of motor drive screw rod rotation, and screw rod drives support frame to do and moves straight down, so that on support frame
Test wheel be moved to behind the position of ground touching, then the preceding bridge portion of vehicle frame is drawn by manpower or motor vehicle, to survey
Try the flatness on road surface；After test, starting motor inverts output shaft, transports straight up so that screw rod drives support frame to do
It is dynamic, so that test wheel is mutually separated with road surface；It is above-mentioned it is this use motor driven screw rod, with band dynamic test wheel straight up or to
The mode of lower movement is conducive to the convenience for improving test wheel lifting process, and then can accelerate road pavement compared to being bolted
The speed of testing flatness improves working efficiency.
Preferably, the position-limit mechanism includes protective cover, and the protective cover is located at the lower section of the motor, the protective cover
It is sheathed on support frame as described above, and the inner sidewall of protective cover is tightly attached on the lateral wall of support frame as described above.
Through the above technical solutions, protective cover is placed on support frame, when using smoothness measuring equipment to be carried out to support frame
Limit guarantees support frame in the movement of vertical direction；When not using smoothness measuring equipment, protective cover can also play screw rod certain
Protective effect, reduction dust enter the junction of screw rod and support frame after the contact with screw rod, so that screw rod rotation
In the process, the vertical shift of support frame is more smoothly quick.
Preferably, sliding slot is offered on the vehicle frame of the screw rod two sides, the protective cover is equipped with and the sliding slot
The sliding block for sliding connection is equipped with fixed mechanism, can pass through when the protective cover slides at screw rod between the sliding block and sliding slot
Fixed mechanism is fixed.
Through the above technical solutions, when using smoothness measuring equipment, by the sliding of sliding block and sliding slot in order to by protective cover
It is moved to and fits with support frame, and be fixed using fixed mechanism, to reduce the movement of protective cover；When experiment wheel and ground
After being in contact, protective cover can be slid away from screw rod direction by releasing fixed mechanism, to reduce to test wheel detection process
It influences.
Preferably, the solid mechanism includes the limited block being set on the slider side wall and through the sliding slot
Cell wall and the limit hole being engaged by clamping with the limited block.
It, can be by the clamping of limited block and limit hole by protective cover through the above technical solutions, when using smoothness measuring equipment
It is fixed on support frame, to reduce the movement of protective cover.
Preferably, open up fluted on the side wall of the sliding block, limited block sliding is connected in the groove, described
The bottom of limited block is fixedly connected with spring, and the spring is fixedly connected on the slot bottom of groove, and institute far from one end of limited block
It states spring and forces in the cell wall that the limited block makes limited block protrude from groove.
Through the above technical solutions, move protective cover towards test wheel direction when needing the height of Adjustment Tests wheel, it is sliding
When the side wall of block is in contact with limited block, squeezing limited block makes spring contraction, and limited block is moved to the slot bottom of groove, until groove
Notch it is opposite with the notch of limit hole after, spring reduction and forces in limited block and moves into limit hole, to realize clamping,
And then protective cover can be fixed；When starting test, squeezing limited block makes spring contraction, and limited block is transported to the slot bottom of groove
It is dynamic, after limited block and limit hole disengaging, away from the mobile protective cover in test wheel direction, and then protective cover can be moved up from support frame
It opens, to reduce the influence to test wheel detection process.
Preferably, the lateral wall of support frame as described above is equipped with the displacement switch device for being electrically connected to motor, and the displacement is opened
Device is closed for detecting the distance between test wheel and road surface, and motor is cut off, the displacement switch device includes position
Displacement sensor, displacement comparison circuit and switching circuit；
Institute's displacement sensors connection position move comparison circuit, institute's displacement sensors detection test wheel ground between away from
From generation displacement signal, and output displacement signal gives displacement comparison circuit；
Circuit connection switching circuit is compared in the displacement, is judged according to displacement signal and displacement low-limit signal, and defeated
Comparison signal out；
The switching circuit connects motor, carries out the cutting of route to motor according to comparison signal.
Through the above technical solutions, displacement low-limit signal is telecommunications caused by the distance of test wheel when being contacted with ground
Number, when smoothness measuring equipment start to work will test wheel towards ground motion when, the distance between test wheel and ground are gradually shortened, displacement
Sensor detection test, which takes turns the distance between ground and generates displacement signal, is input to displacement comparison circuit, is displaced comparison circuit
By displacement signal with displacement low-limit signal be compared, if displacement signal lower than displacement low-limit signal, i.e., test wheel with ground
Face is in contact, at this point, switching circuit control motor disconnects, in order to smoothness measuring equipment start-up operation；It is this to be opened by the way that displacement is arranged
Device is closed, so that can be precisely controlled test wheel in time during screw rod band dynamic test wheel moves to ground and reach ground
Time is conducive to the precision for improving test wheel road pavement flatness detection.
Preferably, the displacement comparison circuit includes comparator and reference circuit, and the reverse side of comparator is to receive
The in-phase end of displacement signal, comparator connects reference circuit, and reference circuit is to provide displacement low-limit signal.
Through the above technical solutions, displacement low-limit signal is arranged by reference circuit, enables and be displaced comparison circuit more
Add and accurately judge displacement signal value and timely input switching circuit, in order to the driving of faster switch-off motor.
In conclusion the utility model having the beneficial effect that in contrast to the prior art
1, in such a way that screw rod transmission is set, be conducive to the convenience for improving test wheel lifting process, and then can accelerate
The speed of road pavement testing flatness improves working efficiency；
2, by setting displacement switch device, so that during screw rod band dynamic test wheel moves to ground, it can be timely
It is precisely controlled the time that test wheel reaches ground, is conducive to the precision for improving test wheel road pavement flatness detection.
Detailed description of the invention
Fig. 1 is the overall structure figure of existing eight wheels smoothness measuring equipment, and the entirety of existing eight wheels smoothness measuring equipment is shown for emphasis
Structure；
Fig. 2 is the overall structure figure of embodiment, and the overall structure of embodiment is shown for emphasis；
Fig. 3 is the lower view of embodiment, and the Sliding Structures of protective cover are shown for emphasis；
Fig. 4 is the cross-sectional view of embodiment, and the connection structure of protective cover and vehicle frame is shown for emphasis；
Fig. 5 is the enlarged drawing in the portion A in Fig. 4, shows fixed mechanism for emphasis；
Fig. 6 is the circuit diagram of displacement switch device, and the circuit structure of displacement switch device is shown for emphasis.
Appended drawing reference: 1, vehicle frame；11, preceding bridge；12, rear axle；13, wheel；14, it pops one's head in；15, mounting rack；16, sliding slot；17,
Conducting wire；18, socket；2, test wheel；3, support frame；4, motor；41, screw rod；5, position-limit mechanism；51, protective cover；511, sliding block；
6, fixed mechanism；61, limited block；62, limit hole；7, groove；71, spring；8, displacement switch device；81, displacement sensor；
82, it is displaced comparison circuit；821, comparator；822, reference circuit；83, switching circuit.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to fig. 2, Fig. 3, a kind of wheel of continuous pavement eight smoothness measuring equipment, including vehicle frame 1, the two sides of vehicle frame 1 are equipped with preceding bridge
11 are separately installed with four wheels 13 with rear axle 12, the lower section of preceding bridge 11 and rear axle 12, are equipped with and use close to the vehicle frame 1 of rear axle 12
Probe 14 in acquisition surface evenness data and test wheel 2 for detecting surface evenness, test wheel 2 are located at probe
14 lower section, and the rotation direction for testing wheel 2 is identical as the rotation direction of wheel 13, is connected between test wheel 2 and probe 14
Conducting wire 17 is transferred at probe 14 with the surface evenness data that will test.
The two sides of test wheel 2 are equipped with support frame 3, and support frame 3 is held on the two sides of test wheel 2, close to the vehicle frame 1 of probe 14
It is equipped with motor 4, the output shaft of motor 4 is in be arranged straight down, and the output shaft of motor 4 is connected with screw rod 41, and screw rod 41 passes through
The one end of support frame 3 far from test wheel 2 is worn and be threadedly connected to, is additionally provided on vehicle frame 1 and is done for limiting support frame 3 along screw rod 41
The position-limit mechanism 5 circumferentially rotated；Position-limit mechanism 5 includes protective cover 51, and protective cover 51 is located at the lower section of motor 4, and is sheathed on branch
On support 3, so that the inner sidewall of protective cover 51 is tightly attached on the lateral wall of support frame 3.
Referring to fig. 4, Fig. 5 is opened up along the length direction of vehicle frame 1 towards 12 direction of rear axle on the vehicle frame 1 of 41 two sides of screw rod
There is sliding slot 16, protective cover 51 is equipped with the sliding block 511 with the sliding connection of sliding slot 16, and sliding slot 16 is equipped with far from one end of test wheel 2
For the socket 18 that sliding block 511 enters, fixed mechanism 6 is equipped between sliding block 511 and sliding slot 16, fixed mechanism 6 is located at screw rod 41
Two sides, protective cover 51 by socket 18 be inserted into sliding slot 16 after, can be carried out by fixed mechanism 6 when sliding onto the two sides of screw rod 41
It is fixed.
Fixed mechanism 6 include the limited block 61 that is set on 511 side wall of sliding block and through 16 cell wall of sliding slot and with limit
The limit hole 62 that position block 61 is engaged by clamping；Fluted 7 are opened up on the side wall that sliding block 511 is contacted with limited block 61, limited block 61 is sliding
Shifting is connected in groove 7, and the bottom of limited block 61 is fixedly connected with spring 71, and the one end of spring 71 far from limited block 61 is fixed to be connected
It is connected to the slot bottom of groove 7, and spring 71 forces in the cell wall that limited block 61 makes limited block 61 protrude from groove 7, limited block 61 is remote
One end from spring 71 is arcwall face.
Referring to fig. 2, Fig. 6, the lateral wall of support frame 3 are equipped with the displacement switch device 8 for being electrically connected to motor 4, and displacement is opened
Device 8 is closed for detecting test wheel the distance between 2 and road surface, and carries out the cutting of route, displacement switch device 8 to motor 4
Including displacement sensor 81, displacement comparison circuit 82 and switching circuit 83.
The connection displacement comparison circuit 82 of displacement sensor 81, and generated by detection test wheel the distance between 2 and ground
Displacement signal, then displacement signal is transferred to displacement comparison circuit 82；It is displaced 82 connection switch circuit 83 of comparison circuit, according to position
Shifting signal and displacement low-limit signal are judged, and export comparison signal, and displacement low-limit signal is to test wheel 2 when being contacted with ground
Distance caused by electric signal；Switching circuit 83 connects motor 4, carries out the cutting of route to motor 4 according to comparison signal, with
Stop motor 4 in time to work.
Being displaced comparison circuit 82 includes resistance R1, comparator 821 and reference circuit 822, and the reverse side of comparator 821 passes through
Resistance R1 connection displacement sensor 81 connects reference circuit 822, benchmark to receive displacement signal, the in-phase end of comparator 821
Circuit 822 is to provide displacement low-limit signal；Reference circuit 822 includes that resistance R2 and potentiometer Rp1, voltage vcc are sequentially connected
Resistance R2 and potentiometer Rp1, potentiometer Rp1 are also grounded, and the tie point between resistance R2 and locator Rp1 provides low-limit signal
Vref1, by the size for adjusting the adjustable low-limit signal Vref1 of potentiometer Rp1.
Switching circuit 83 includes resistance R3, triode Q1 and relay K1, and relay K1 is normally closed relay, comparator
821 pass through the basis set of resistance R3 connecting triode Q1, coil one end of the collector connection relay K1 of triode Q1, triode
The emitter of Q1 is grounded, and the other end of the coil of relay K1 connects power supply, the normally-closed contact of relay K1 be connected to power supply and
Between motor 4.
The detection test wheel of displacement sensor 81 the distance between 2 and ground, in the displacement signal value detected lower than displacement
When lower signal, motor 4 can be controlled, to ensure that motor 4 can be automatically stopped work, guarantee test wheel 2 can be rigid
Good and ground touches.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the protection scope of the utility model is determined by the attached claims.
Claims (7)
1. a kind of continuous pavement eight takes turns smoothness measuring equipment, including vehicle frame (1), the two sides of the vehicle frame (1) be equipped with preceding bridge (11) with
Rear axle (12) is separately installed with four wheels (13) below preceding bridge (11) and rear axle (12), the vehicle frame (1) close to rear axle (12)
The probe (14) being equipped with, the lower section of probe (14) are equipped with the test wheel (2) for detecting surface evenness, the test wheel
(2) two sides are equipped with support frame (3), it is characterized in that: the vehicle frame (1) close to the probe (14) is equipped with motor (4), the electricity
The output shaft of machine (4) in being arranged straight down and being connected with screw rod (41), run through and be threadedly connected to support by the screw rod (41)
The one end of frame (3) far from test wheel (2), the vehicle frame (1) are equipped with limitation support frame as described above (3) and do circumference fortune along screw rod (41)
Dynamic position-limit mechanism (5).
2. continuous pavement eight according to claim 1 takes turns smoothness measuring equipment, it is characterized in that: the position-limit mechanism (5) includes
Protective cover (51), the protective cover (51) are located at the lower section of the motor (4), and the protective cover (51) is sheathed on support frame as described above
(3) on, and the inner sidewall of protective cover (51) is tightly attached on the lateral wall of support frame as described above (3).
3. continuous pavement eight according to claim 2 takes turns smoothness measuring equipment, it is characterized in that: being located at the screw rod (41) two sides
Vehicle frame (1) on offer sliding slot (16), the protective cover (51) be equipped with the sliding slot (16) sliding connection sliding block
(511), fixed mechanism (6) are equipped between the sliding block (511) and sliding slot (16), the protective cover (51) slides onto screw rod (41)
It can be fixed by fixed mechanism (6) when place.
4. continuous pavement eight according to claim 3 takes turns smoothness measuring equipment, it is characterized in that: the fixed mechanism (6) includes
The limited block (61) that is set on the sliding block (511) side wall and through the sliding slot (16) cell wall and with the limit
The limit hole (62) that block (61) is engaged by clamping.
5. continuous pavement eight according to claim 4 takes turns smoothness measuring equipment, it is characterized in that: the side wall of the sliding block (511)
On open up fluted (7), the limited block (61) sliding is connected in the groove (7), and the bottom of the limited block (61) is solid
Surely it is connected with spring (71), the spring (71) is fixedly connected on the slot bottom of groove (7), and institute far from the one end of limited block (61)
It states spring (71) and forces in the cell wall that the limited block (61) makes limited block (61) protrude from groove (7).
6. continuous pavement eight according to claim 1 takes turns smoothness measuring equipment, it is characterized in that: the outside of support frame as described above (3)
Wall is equipped with the displacement switch device (8) for being electrically connected to motor (4), and the displacement switch device (8) is for detecting test wheel (2)
The distance between road surface, and motor (4) is cut off, the displacement switch device (8) includes displacement sensor (81), position
Move comparison circuit (82) and switching circuit (83)；
Institute's displacement sensors (81) connection displacement comparison circuit (82), institute's displacement sensors (81) detection test wheel (2) with
The distance between ground generates displacement signal, and output displacement signal is to displacement comparison circuit (82)；
Displacement comparison circuit (82) the connection switch circuit (83), according to displacement signal and displacement upper limit signal judged,
And export comparison signal；
The switching circuit (83) connects motor (4), and according to comparison signal motor (4) are carried out with the cutting of route.
7. continuous pavement eight according to claim 6 takes turns smoothness measuring equipment, it is characterized in that: the displacement comparison circuit (82)
Including comparator (821) and reference circuit (822), the reverse side of comparator (821) displacement signal, comparator to receive
(821) in-phase end connects reference circuit (822), and reference circuit (822) is to provide displacement low-limit signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519893.4U CN208219371U (en) | 2018-04-12 | 2018-04-12 | Continuous pavement eight takes turns smoothness measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519893.4U CN208219371U (en) | 2018-04-12 | 2018-04-12 | Continuous pavement eight takes turns smoothness measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208219371U true CN208219371U (en) | 2018-12-11 |
Family
ID=64529006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820519893.4U Expired - Fee Related CN208219371U (en) | 2018-04-12 | 2018-04-12 | Continuous pavement eight takes turns smoothness measuring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208219371U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119013A (en) * | 2020-02-24 | 2020-05-08 | 郑州市交通规划勘察设计研究院 | Level detection device for roadbed and pavement |
| CN112161554A (en) * | 2020-09-15 | 2021-01-01 | 江苏中路工程技术研究院有限公司 | Pavement levelness detection device and application method thereof |
| CN112458849A (en) * | 2020-11-17 | 2021-03-09 | 尚福涛 | Road and bridge construction road surface levels detection device |
| CN112739116A (en) * | 2021-01-04 | 2021-04-30 | 中车青岛四方车辆研究所有限公司 | Anti-sagging device and control method thereof |
| WO2021098161A1 (en) * | 2019-11-20 | 2021-05-27 | 中铁四局集团第一工程有限公司 | Pavement flatness measurement method and system |
| CN115371528A (en) * | 2022-08-18 | 2022-11-22 | 东营智通工程检测有限公司 | Intelligent detection device and detection method for road surface flatness |
-
2018
- 2018-04-12 CN CN201820519893.4U patent/CN208219371U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098161A1 (en) * | 2019-11-20 | 2021-05-27 | 中铁四局集团第一工程有限公司 | Pavement flatness measurement method and system |
| CN111119013A (en) * | 2020-02-24 | 2020-05-08 | 郑州市交通规划勘察设计研究院 | Level detection device for roadbed and pavement |
| CN112161554A (en) * | 2020-09-15 | 2021-01-01 | 江苏中路工程技术研究院有限公司 | Pavement levelness detection device and application method thereof |
| CN112161554B (en) * | 2020-09-15 | 2022-04-15 | 江苏中路工程技术研究院有限公司 | Pavement levelness detection device and application method thereof |
| CN112458849A (en) * | 2020-11-17 | 2021-03-09 | 尚福涛 | Road and bridge construction road surface levels detection device |
| CN112739116A (en) * | 2021-01-04 | 2021-04-30 | 中车青岛四方车辆研究所有限公司 | Anti-sagging device and control method thereof |
| CN115371528A (en) * | 2022-08-18 | 2022-11-22 | 东营智通工程检测有限公司 | Intelligent detection device and detection method for road surface flatness |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |