CN207717551U - A kind of trailer-type hammer-falling deflectometer - Google Patents
A kind of trailer-type hammer-falling deflectometer Download PDFInfo
- Publication number
- CN207717551U CN207717551U CN201721660948.5U CN201721660948U CN207717551U CN 207717551 U CN207717551 U CN 207717551U CN 201721660948 U CN201721660948 U CN 201721660948U CN 207717551 U CN207717551 U CN 207717551U
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- China
- Prior art keywords
- loading disc
- carrying vehicle
- trailer
- fixture block
- connecting rod
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Abstract
The utility model discloses a kind of trailer-type hammer-falling deflectometers, including carrying vehicle, carrier is provided on carrying vehicle, detection part is provided on carrier, the detection part includes detection unit, plummer, the component that drops hammer being arranged on plummer, the loading disc for being connected with plummer and being abutted with ground, and the force piece that driving plummer moves up and down, the cleaning plant for clearing up sundries below loading disc is additionally provided on the carrying vehicle, the cleaning plant includes the L-type connecting rod being connected with carrying vehicle, and it is connected with connecting rod and is set to the cleaning brush below loading disc, it is arranged on the carrying vehicle and is rotated for drive connection bar to drive cleaning brush to leave the drive component below loading disc when loading disc declines；With the sandstone before loading disc is abutted with ground on cleaning ground, the advantages of to improve accuracy of detection.
Description
Technical field
The utility model is related to detection device field, more particularly to a kind of trailer-type hammer-falling deflectometer.
Background technology
Drop hammer deflection meter (FWD) is current more advanced road surface Bearing Capacity Evaluation equipment.Its basic principle is as follows：
It is discharged after weight is promoted to certain altitude, tension weight churning generates rushing for certain time after being located at the weighted platform on road surface
Load is hit, road surface generates deformation under the effect of this load, impact load and the displacement of pavement deformation measured, at the later stage
Reason, to evaluate road surface bearing capacity.
As the utility model patent of Patent No. CN200620068519.4 illustrates a kind of hammer-falling deflectometer, including it is equipped with
Vehicle power supply and detection part, detection part include：Hydraulic power part is by dropping hammer of connecting with hydraulic power part of oil cylinder
System, data acquisition controller and microsystem, load generator therein by weight, weighted platform, realize weight promotion with
The Che Zhi mechanisms and loading plate of release form, measure impact force acceleration transducer be separately positioned on it is known in the system of dropping hammer
On the weight of quality and the weighted platform of known quality, measure flexure acceleration transducer be arranged in the system of dropping hammer load it is flat
Platform lower central axial location, above-mentioned acceleration transducer are separately connected the input terminal of data acquisition controller, data acquisition control
The output end of device processed connects hydraulic power part, the PORT COM connected with computer system of data acquisition controller；
After moveable bearing structure to test point, hydraulic power part controls system of dropping hammer and places ground first, then will
The weight for system of dropping hammer discharges after promoting certain altitude, generates the impact load of certain time, and ground is made to generate deformation, leads to
The acceleration transducer crossed on the weighted platform of the acceleration transducer and known quality that are fixed on known quality weight is accurate
Impact force is obtained, the acceleration transducer signals on the sensor stand that is connected with weighted platform to data acquisition controller are passed through
Deflection value is obtained, measurement data is sent to radio receiving transmitting module by the radio receiving transmitting module in data acquisition controller
Microsystem, microsystem, which to measurement data handle, accurately obtains the size and deflection value of impact process impact force.
But since there are many sandstones on road, when loading disc declines, sandstone can interfere loading disc directly to be connect with ground
It touches, and when by tension weight churning loading disc, powerful impact force can crush sandstone, and loading disc is opposite with initial height meeting
Reduce, sensor can height that is sandstone is broken and declining also be detected as the sinking on ground so that measurement result is inaccurate, right
It causes a deviation in Pavement Evaluation.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of trailer-type hammer-falling deflectometer,
With the sandstone before loading disc is abutted with ground on cleaning ground, the advantages of to improve accuracy of detection.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of trailer-type hammer-falling deflectometer, including carrying vehicle are provided with carrier on carrying vehicle, inspection are provided on carrier
Component is surveyed, the detection part includes detection unit, plummer, the component that drops hammer being arranged on plummer, is connected with plummer
And the force piece that the loading disc that is abutted with ground and driving plummer move up and down, it is additionally provided on the carrying vehicle and is used for
Clear up loading disc below sundries cleaning plant, the cleaning plant include the L-type connecting rod being connected with carrying vehicle and with company
Extension bar is connected and is set to the cleaning brush below loading disc, is arranged on the carrying vehicle when loading disc declines for being drivingly connected
Bar is rotated to drive cleaning brush to leave the drive component below loading disc.
Using the above scheme, cleaning brush follows carrying vehicle to advance, and is contacted with ground always, cleans the sand below loading disc
Stone when loading disc declines, drives cleaning brush to leave below loading disc so that loading disc can be direct with ground by drive component
Contact avoids the problem that causing loading disc initial measurement locations to decline since sandstone is smashed by powerful impact force so that inspection
It is more accurate to survey the flexure numerical value that unit detects.
Preferably, the driving component includes the mounting shell being arranged in carrying car bottom, be provided in the mounting shell with
Connecting rod connected drive shaft is connected with worm gear in the drive shaft, is connected with when loading disc declines and is used on the force piece
Drive worm screw rotation driving part.
Using the above scheme, when driving loading disc to decline by force piece, worm screw rotation is driven, drives worm gear rotation, together
When drive shaft turns so that connecting rod rotate, drive cleaning brush leave loading disc lower section enable loading disc directly with ground
Face abuts, and by the position-limiting action between worm gear and worm screw, and limitation cleaning brush rotates when carrying vehicle being followed to advance.
Preferably, the driving part includes the driving gear being arranged on worm screw, is connected with and stretches on the force piece
The rack engaged with driving gear in mounting shell.
Using the above scheme, when force piece declines, band carry-over bar moves, and sliding tooth wheel is driven to rotate, and drives worm screw rotation,
Simultaneously drive shaft turns so that connecting rod rotate, drive cleaning brush leave loading disc lower section enable loading disc directly with
Ground abuts, and by the position-limiting action between worm gear and worm screw, and limitation cleaning brush rotates when carrying vehicle being followed to advance.
Preferably, the diameter of the worm gear is more than the diameter of driving gear.
Using the above scheme, driving gear is arranged on worm screw, worm and wheel engagement, therefore worm gear and driving gear
Linear velocity is equal, and since the diameter of worm gear is more than the diameter of driving gear, the angular speed of worm gear is less than the angular speed of driving gear,
The velocity of rotation for slowing down worm gear, before avoiding force piece drive load disk from being abutted with ground, connecting rod is rotated by 360 ° so that cleaning brush
It comes back to below loading disc so that loading disc is pressed on cleaning brush.
Preferably, it is provided with the inserting groove coordinated with connecting rod on the cleaning brush, first is provided in the inserting groove
Fixture block offers the guide surface towards inserting groove opening direction on the first fixture block, is provided with and inserting groove phase in the cleaning brush
Logical sliding slot, in the sliding slot setting be provided with the first elastic component of the first fixture block elastic force, be provided in the connecting rod and the
The bayonet of one fixture block cooperation.
Using the above scheme, connecting rod is inserted into inserting groove, squeezes the guide surface on the first fixture block so that the first fixture block
It squeezes the first elastic component to move along sliding slot direction, is multiple by the first elastic component with fixture block when bayonet passes through the first fixture block
Position so that the first fixture block engages with bayonet, and cleaning brush and connecting rod are fixed, the installation of brush and connecting rod convenient for cleaning, convenient
Staff operates, and improves work efficiency to a certain extent.
Preferably, the straight slot communicated with sliding slot is provided in the cleaning brush, the end of first fixture block, which is connected with, wears
Cross straight slot and for driving the sliding of its sliding slot direction to be detached from the traction rope of bayonet.
Using the above scheme, cleaning brush is abutted with ground always when carrying vehicle is advanced, it is easy to be damaged, be needed often more
It changes, traction the first fixture block of wire saws is pulled to be slided along sliding slot direction so that the first fixture block is detached from bayonet, by cleaning brush and company
Extension bar is detached from, and staff is facilitated to dismantle, and is saved the working time, is improved work efficiency to a certain extent.
Preferably, the other end of the traction rope is connected with the second fixture block for closing straight slot.
Using the above scheme, by the way that traction rope is connected with the second fixture block, staff is facilitated to pull traction rope, and the
Two fixture blocks close straight slot, and not only can enter straight slot to avoid extraneous dust blocks straight slot, but also can be exposed to avoid traction rope
The possibility being torn outside.
Preferably, setting is provided with the second elastic component that connecting rod is detached from inserting groove elastic force in the inserting groove.
Using the above scheme, traction the first fixture block of wire saws is pulled to be slided along sliding slot direction so that the first fixture block and card
When mouth is detached from, cleaning brush is disconnected bar by the elastic force that the second elastic component provides, and staff is facilitated to operate, and further increases
Working efficiency.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：Cleaning brush follows carrying vehicle to advance, and
It is contacted with ground always, cleans the sandstone below loading disc, when loading disc declines, driven cleaning brush to leave by drive component and add
Below load plate so that loading disc can be in direct contact with ground, avoid causing to add since sandstone is smashed by powerful impact force
The problem of load plate initial measurement locations decline so that the flexure numerical value that detection unit detects is more accurate.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram of embodiment detection part；
Fig. 3 is the structural schematic diagram in embodiment mounting shell；
Fig. 4 is the sectional view of embodiment cleaning brush.
Reference numeral：1, carrying vehicle；2, detection part；3, drop hammer component；31, master cylinder；32, weight；33, tug machine processed
Structure；4, the first acceleration transducer；5, plummer；6, force piece；7, loading disc；8, drive component；81, first rotating shaft；82, snail
Wheel；83, worm screw；84, gear is driven；85, rack；9, the second acceleration transducer；10, sensor stand；11, third acceleration
Sensor；12, mounting shell；13, cleaning plant；131, connecting rod；1311, bayonet；132, cleaning brush；14, inserting groove；15,
Two elastic components；16, the first fixture block；17, sliding slot；18, the first elastic component；19, straight slot；20, traction rope；21, the second fixture block；22、
Carrier；23, connecting plate.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Shown in referring to Figures 1 and 2, a kind of trailer-type hammer-falling deflectometer, including carrying vehicle 1 is provided with carrying on carrying vehicle 1
Frame 22, detection part 2 is provided on carrier 22, and detection part 2 includes hydraulic power unit, detection unit, plummer 5, sets
It sets on the component 3 that drops hammer on plummer 5, the loading disc 7 for being connected with plummer 5 and being abutted with ground and driving plummer 5
The force piece 6 of lower movement, and setting is provided with the vehicle power supply of all parts electric power on carrying vehicle 1.
With reference to shown in Fig. 2, the component 3 that drops hammer includes master cylinder 31, the weight 32 being set on 31 cylinder body of master cylinder, Yi Jiyu
The piston rod of master cylinder 31 is connected and realizes the Che Zhi mechanisms 33 of the promotion and release of weight 32, master cylinder 31 and Che Zhi mechanisms
33 connect with hydraulic power unit, and the first acceleration transducer 4 for measuring impact force, the first acceleration are provided on weight 32
Sensor 4 is connected with detection unit.
Force piece 6 is auxiliary oil cylinder, and auxiliary oil cylinder is connected with hydraulic power unit, and the piston rod of auxiliary oil cylinder and plummer 5
It is slidably connected.
The second acceleration transducer 9 is provided in loading disc 7, loading disc 7 is provided with sensor branch in center axis
Frame 10 is provided with third acceleration transducer 11 on sensor stand 10, and third acceleration transducer 11 is connected with detection unit.
Referring to Fig.1 with the cleaning plant for clearing up 7 lower section sundries of loading disc shown in Fig. 4, is additionally provided on carrying vehicle 1
13, cleaning plant 13 includes the L-type connecting rod 131 being connected with carrying vehicle 1 and is connected with connecting rod 131 and is set to load
The cleaning brush 132 of the lower section of disk 7 is provided with the inserting groove for being provided on cleaning brush 132 and coordinating with connecting rod 131 on cleaning brush 132
14, the interior setting of inserting groove 14 is provided with the second elastic component 15 that connecting rod 131 is detached from inserting groove 14, and the second elastic component 15 is along grafting
The length direction of slot 14 is arranged；
It is provided with the first fixture block 16 in inserting groove 14, drawing towards 14 opening direction of inserting groove is offered on the first fixture block 16
Guide face is provided with the sliding slot 17 communicated with inserting groove 14 in cleaning brush 132, in sliding slot 17 setting be provided with 16 elastic force of the first fixture block
The first elastic component 18, the first elastic component 18 is arranged along the length direction of sliding slot 17, is provided with and the first fixture block in connecting rod 131
The bayonet 1311 of 16 cooperations.
The straight slot 19 communicated with sliding slot 17 is provided in cleaning brush 132, the end of the first fixture block 16 is connected with across straight slot
19 and for drive its along 17 direction of sliding slot slide to be detached from the traction rope 20 of bayonet 1311, the other end of traction rope 20 is connected with
The second fixture block 21 for closing straight slot 19.
With reference to be arranged shown in Fig. 2 and Fig. 3, on carrying vehicle 1 when loading disc 7 declines for the rotation of drive connection bar 131 with
Cleaning brush 132 is driven to leave the drive component 8 of 7 lower section of loading disc, drive component 8 includes the installation being arranged in 1 bottom of carrying vehicle
Shell 12, the drive shaft being connected with connecting rod 131 is provided in mounting shell 12, and drive shaft is arranged along the length direction of mounting shell 12
It crosses, worm gear 82 is connected in drive shaft, be connected on force piece 6 when loading disc 7 declines for driving worm screw 83 to rotate driving portion
Part；
Driving part includes the driving gear 84 being arranged on worm screw 83, and force piece 6 is connected with by connecting plate 23 and is stretched into
The rack 85 engaged with driving gear 84 in mounting shell 12, rack 85 are arranged along the length direction of mounting shell 12, what one referred to carried
It is that the diameter of worm gear 82 is more than the diameter of driving gear 84.
Use process：
It before being detected, first checks whether cleaning brush 132 damages, if damage, traction rope 20 is pulled by the second fixture block 21
It draws the first fixture block 16 to move along 17 direction of sliding slot so that 16 fixture block of the first fixture block is detached from bayonet 1311, passes through the second bullet
Property the elastic force given of part 15 so that cleaning brush 132 is detached from connecting rod 131, the cleaning brush 132 then more renewed, by connecting rod
131 be inserted into inserting grooves 14 in, squeeze the first fixture block 16 on guide surface so that the first fixture block 16 squeeze the first elastic component 18 along
17 direction of sliding slot moves, and when bayonet 1311 is by the first fixture block 16, the first fixture block 16 is resetted by the first elastic component 18 so that
First fixture block 16 engages with bayonet 1311, and cleaning brush 132 and connecting rod 131 are fixed；
Cleaning brush 132 follows carrying vehicle 1 to advance, and is contacted with ground always, cleans the sandstone of 7 lower section of loading disc, passes through
When force piece 6 drives loading disc 7 to decline, worm screw 83 is driven to rotate, drive worm gear 82 to rotate, while drive shaft turns so that even
Extension bar 131 rotates, and drives the lower section that cleaning brush 132 leaves loading disc 7 that loading disc 7 is directly abutted with ground, and
By the position-limiting action between worm gear 82 and worm screw 83, limitation cleaning brush 132 rotates when carrying vehicle 1 being followed to advance.
Che Zhi mechanisms 33 by being fixed on 31 upper piston rod of master cylinder promote weight 32, until certain altitude, Che Zhi mechanisms
33 discharge weight 32 under the action of hydraulic power unit impacts plummer 5, is fixed on the loading disc 7 of 5 lower section of plummer and will rush
It hits power and is oriented to ground, during the whereabouts moment of weight 32 terminates to the impact of weight 32, detection unit is picked up the first acceleration and passed
The signal of 11 sensor transmissions value detection unit of sensor 4, the second acceleration transducer 9 and third acceleration, to data into
Row processing, obtains the size and deflection value of impact process impact force.
Claims (8)
1. a kind of trailer-type hammer-falling deflectometer, including carrying vehicle (1), carrier (22), carrier are provided on carrying vehicle (1)
(22) detection part (2) is provided on, the detection part (2) includes detection unit, plummer (5), is arranged in plummer (5)
On the component that drops hammer (3), be connected with plummer (5) and the loading disc (7) that is abutted with ground and drive plummer (5) up and down
The force piece (6) of movement, characterized in that be additionally provided on the carrying vehicle (1) for clearing up the clear of loading disc (7) lower section sundries
Device (13) is managed, the cleaning plant (13) includes the L-type connecting rod (131) and and connecting rod being connected with carrying vehicle (1)
(131) it is connected and the cleaning brush (132) that is set to below loading disc (7), setting is when under loading disc (7) on the carrying vehicle (1)
It is rotated for drive connection bar (131) to drive cleaning brush (132) to leave the drive component (8) below loading disc (7) when drop.
2. a kind of trailer-type hammer-falling deflectometer according to claim 1, characterized in that the driving component (8) includes setting
The mounting shell (12) in carrying vehicle (1) bottom is set, the driving being connected with connecting rod (131) is provided in the mounting shell (12)
Axis is connected with worm gear (82) in the drive shaft, is connected on the force piece (6) when loading disc (7) declines for driving snail
Bar (83) rotation driving part.
3. a kind of trailer-type hammer-falling deflectometer according to claim 2, characterized in that the driving part includes that setting exists
Driving gear (84) on worm screw (83), be connected on the force piece (6) stretch into mounting shell (12) with driving gear (84)
The rack (85) of engagement.
4. a kind of trailer-type hammer-falling deflectometer according to claim 3, characterized in that the diameter of the worm gear (82) is more than
Drive the diameter of gear (84).
5. a kind of trailer-type hammer-falling deflectometer according to claim 1, characterized in that be arranged on the cleaning brush (132)
There is the inserting groove (14) with connecting rod (131) cooperation, the first fixture block (16), the first fixture block are provided in the inserting groove (14)
(16) it offers the guide surface towards inserting groove (14) opening direction on, is provided in the cleaning brush (132) and inserting groove
(14) sliding slot (17) communicated, the interior setting of the sliding slot (17) are provided with first elastic component (18) of the first fixture block (16) elastic force,
The bayonet (1311) coordinated with the first fixture block (16) is provided on the connecting rod (131).
6. a kind of trailer-type hammer-falling deflectometer according to claim 5, characterized in that setting in the cleaning brush (132)
There are the straight slot (19) communicated with sliding slot (17), the end of first fixture block (16) to be connected with across straight slot (19) and for driving
It slides to be detached from the traction rope (20) of bayonet (1311) in its sliding slot (17) direction.
7. a kind of trailer-type hammer-falling deflectometer according to claim 6, characterized in that the other end of the traction rope (20)
It is connected with the second fixture block (21) for closing straight slot (19).
8. a kind of trailer-type hammer-falling deflectometer according to claim 7, characterized in that be provided in the inserting groove (14)
The second elastic component (15) that connecting rod (131) is detached from inserting groove (14) elastic force is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660948.5U CN207717551U (en) | 2017-12-04 | 2017-12-04 | A kind of trailer-type hammer-falling deflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660948.5U CN207717551U (en) | 2017-12-04 | 2017-12-04 | A kind of trailer-type hammer-falling deflectometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207717551U true CN207717551U (en) | 2018-08-10 |
Family
ID=63059421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721660948.5U Expired - Fee Related CN207717551U (en) | 2017-12-04 | 2017-12-04 | A kind of trailer-type hammer-falling deflectometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207717551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672425A (en) * | 2019-11-14 | 2020-01-10 | 苏州科联建设工程质量检测有限公司 | Bridge bearing capacity detection device and detection method |
-
2017
- 2017-12-04 CN CN201721660948.5U patent/CN207717551U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672425A (en) * | 2019-11-14 | 2020-01-10 | 苏州科联建设工程质量检测有限公司 | Bridge bearing capacity detection device and detection method |
| CN110672425B (en) * | 2019-11-14 | 2022-04-05 | 苏州科联建设工程质量检测有限公司 | Bridge bearing capacity detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20201204 |