CN209432657U - A kind of automatic bitumen needle forcemeter - Google Patents

A kind of automatic bitumen needle forcemeter Download PDF

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Publication number
CN209432657U
CN209432657U CN201822139285.3U CN201822139285U CN209432657U CN 209432657 U CN209432657 U CN 209432657U CN 201822139285 U CN201822139285 U CN 201822139285U CN 209432657 U CN209432657 U CN 209432657U
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CN
China
Prior art keywords
needle
vertical bar
bar bracket
connecting rod
operating platform
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Expired - Fee Related
Application number
CN201822139285.3U
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Chinese (zh)
Inventor
吴双全
付英杰
张栋梁
卢东
张宇
彭江
汪鹏飞
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Changan University
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Changan University
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Priority to CN201822139285.3U priority Critical patent/CN209432657U/en
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Publication of CN209432657U publication Critical patent/CN209432657U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of automatic bitumen needle forcemeter provided by the utility model, including workbench, transfer case, the first vertical bar bracket, the second vertical bar bracket, controller, overarm brace, carriage, electro-optical distance measurement module, needle connecting rod, standard needle, thermostatic water bath, temperature control device and operating platform, wherein, operating platform is connect with controller, carriage, electro-optical distance measurement module and temperature control device respectively, and electro-optical distance measurement module is for acquiring the deep degree that standard needle gos deep into asphalt test piece;Temperature control device is used to control the water temperature of thermostatic water bath;Solve instrument existing in the prior art be difficult to realize to move horizontally with moving in rotation, be precisely controlled needle point and specimen surface contact position, water bath with thermostatic control condition, caused by measurement result inaccuracy problem.

Description

A kind of automatic bitumen needle forcemeter
Technical field
The utility model belongs to technical field of asphalt detection, is related to a kind of automatic bitumen needle forcemeter.
Background technique
Bitumen needle forcemeter be measure needle penetration important instrument, needle penetration be asphalt quality detection main indicator it One.However traditional bitumen needle forcemeter can only realize longitudinal movement, its motion profile of considerable restraint, after testing a needle penetration Mobile sample mould is needed to carry out second, third secondary test, test process is cumbersome, takes a long time;Secondly, standard needle and pitch try Accurately controlling for sample surface touch position is the key factor for influencing test result accuracy, and traditional bitumen needle forcemeter is main By technical staff's subjective visual inspection, for being unfamiliar with the technical staff of test operation, it is difficult to accurately control needle point and specimen surface Position;Finally, the bath temperature of traditional experiment process, by heating water and cold water, temperature control is too rough.
Summary of the invention
The purpose of this utility model is to provide a kind of automatic bitumen needle forcemeters, solve above-mentioned technical problem.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of automatic bitumen needle forcemeter provided by the utility model, including workbench, transfer case, the first vertical bar bracket, Second vertical bar bracket, controller, overarm brace, carriage, electro-optical distance measurement module, needle connecting rod, standard needle, thermostatic water bath, temperature Control device and operating platform, wherein operating platform connects with controller, carriage, electro-optical distance measurement module and temperature control device respectively It connects, electro-optical distance measurement module is for acquiring the deep degree that standard needle gos deep into asphalt test piece;Temperature control device is for controlling thermostatic water bath Water temperature;First vertical bar bracket is arranged on workbench, and the free end of the first vertical bar bracket is connected with the second vertical bar bracket, and with second The telescopic connection of vertical bar bracket;The free end connecting cross beam bracket of second vertical bar bracket;Controller control connection transfer case, transfer There are two output shaft, one of output shaft is connect with the first vertical bar bracket for case setting, drives the first vertical bar holder pivots;It is another A output shaft is connect with the second vertical bar bracket, and the second vertical bar bracket is driven to move up and down along the axial direction of the first vertical bar bracket;
One end of carriage is mounted on overarm brace, and can be moved back and forth along overarm brace;The other end connects needle The free end of connecting rod, needle connecting rod connects standard needle;
Thermostatic water bath is installed on the workbench, and is placed in the lower section of standard needle;Temperature control device is mounted on the bottom of thermostatic water bath Portion.
Preferably, temperature control device includes heating system, water pump and temperature sensor, wherein heating system, water pump and temperature Sensor is arranged at the bottom of thermostatic water bath, and connect with operating platform;Temperature sensor is for acquiring thermostatic water bath Water temperature, and collected data are transferred to operating platform, operating platform is according to the information control heating system and water received The start and stop of pump.
Preferably, carriage includes sliding block, connecting rod and stepper motor, wherein and sliding block is mounted on overarm brace, and It can move back and forth along overarm brace;The lower end of sliding block connects connecting rod, and the free end of connecting rod connects stepper motor, stepping electricity The output axis connection needle connecting rod of machine.
Preferably, cantilever is provided between carriage and needle connecting rod, cantilever is cylindrical structure, and coaxial with needle connecting rod Arrangement.
Preferably, electro-optical distance measurement module includes infrared transmitter, displacement sensor and processor, wherein infrared transmitter It, will be data information transfer to processor for the distance between measurement standard needle and asphalt test piece surface;Processor will receive To data be transferred on operating platform, operating platform according to receive information control standard needle movement;Displacement sensor Number is read for acquiring needle penetration when standard needle gos deep into asphalt test piece, and collected data information transfer to operating platform According to.
Preferably, controller is C51 type single-chip microcontroller.
Compared with prior art, the beneficial effects of the utility model are:
The utility model discloses a kind of automatic bitumen needle forcemeter, by workbench upper vertical bar bracket and overarm brace, And high-precision oil pump, controller, sliding block and stepper motor on bracket, realization moves horizontally and moving in rotation;Simultaneously outstanding Electro-optical distance measurement module is installed on arm, infrared transmitter and displacement sensor are installed in electro-optical distance measurement module, cantilever lower end connects Needle connecting rod is connect, needle connecting rod lower end is equipped with the mode of standard needle, and realization is precisely controlled needle point and specimen surface contact position;Finally By being mounted with heating system, water pump and the thermostatic water bath of temperature sensor, realize that test temperature is precisely controlled, final solution is surveyed The problem of result inaccuracy is measured, test accuracy is improved, reduces error.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the arrangement schematic diagram of the utility model infrared transmitter and displacement sensor;
Wherein, 1, workbench 2, transfer case 3, the first vertical bar bracket 4, the second vertical bar bracket 5, controller 6, crossbeam Bracket 7, sliding block 8, connecting rod 9, stepper motor 10, cantilever 11, electro-optical distance measurement module 12, infrared transmitter 13, needle connect Bar 14, standard needle 15, displacement sensor 16, thermostatic water bath 17, heating system 18, water pump 19, temperature sensor 20, Operating platform.
Specific embodiment
With reference to the accompanying drawing, the utility model is further described.
As depicted in figs. 1 and 2, a kind of automatic bitumen needle forcemeter provided by the utility model, including workbench 1, transfer Case 2, the second vertical bar bracket 4, controller 5, overarm brace 6, sliding block 7, connecting rod 8, stepper motor 9, hangs first vertical bar bracket 3 Arm 10, infrared transmitter 12, needle connecting rod 13, standard needle 14, displacement sensor 15, thermostatic water bath 16, adds electro-optical distance measurement module 11 Hot systems 17, water pump 18, temperature sensor 19 and operating platform 20, wherein the first vertical bar bracket 3 is arranged on workbench 1, and first The free end of vertical bar bracket 3 and the second vertical bar bracket 4 connection, and with the telescopic connection of the second vertical bar bracket 4.Second vertical bar bracket 4 free end connecting cross beam bracket 6, controller 5 is mounted on overarm brace 6, the control connection transfer case 2 of controller 5, transfer case There are two output shaft, one of output shaft is connect with the first vertical bar bracket 3 for 2 settings, drives the rotation of the first vertical bar bracket 3;Separately One output shaft is connect with the second vertical bar bracket 4, drives the second vertical bar bracket 4 above and below the axial direction of the first vertical bar bracket 3 It is mobile.
Sliding block 7 is mounted on overarm brace 6, and can be moved back and forth along overarm brace 6.
The lower end of sliding block 7 connects connecting rod 8, and the free end of connecting rod 8 connects stepper motor 9, the output shaft of stepper motor 9 The lower end of connecting cantilever 10, the cantilever 10 connects needle connecting rod 13, and needle connecting rod 13 and cantilever 10 are coaxially arranged;Needle connecting rod 13 from By end connection standard needle 14.
9 attended operation platform 20 of stepper motor is realized the movement of sliding block 7 by operating platform 20, and then drives standard needle 14 movement.
Electro-optical distance measurement module 11 is fixed on cantilever 10, and electro-optical distance measurement module 11 is for acquiring measurement point and asphalt test piece table The distance in face, and in collected data information transfer to operating platform 20.
Electro-optical distance measurement module 11 includes three infrared transmitters 12, displacement sensors 15 and a processors, wherein infrared Transmitter 12, will be data information transfer to processor for measuring current location at a distance from asphalt test piece surface;Processor Receive three groups of data are averaged processing, binding fruit is input on operating platform 20 later, and then determine standard needle 15 with The distance between asphalt test piece surface.
Displacement sensor 15 is used to acquire standard needle 14 and gos deep into distance inside asphalt test piece, and collected data biography It is defeated on operating platform 20, and then obtain the needle penetration of pitch.
Asphalt test piece is placed in the inner cavity of thermostatic water bath 16, and thermostatic water bath 16 is fixed on workbench 1, and is placed in standard The lower section of needle 14.
The bottom of thermostatic water bath 16 is arranged in heating system 17;For being heated to thermostatic water bath 16.
The bottom of thermostatic water bath 16 is arranged in water pump 18, and water pump 18 into thermostatic water bath 16 for filling the water.
Temperature sensor 19 is also set up on thermostatic water bath 16, for acquiring the temperature of thermostatic water bath 16, and collected Information is transferred on operating platform 20, and operating platform 20 is according to the data information received and then controls heating system and water pump 18 Start and stop.
The utility model use process is as follows:
When carrying out asphalt penetration test, after preparing according to code requirement and conserve sample, sample-containing dish is put into constant temperature In sink 16.Heating system 17 is opened, test temperature is made to meet test requirements document.Referred to by operating platform 20 to the sending of controller 5 It enables, operating transfer case 2 by controller 5 rotates the first vertical bar bracket 3, selects a suitable position.
Controlling stepper motor 9 by operating platform 20 keeps sliding block 7 mobile, determines the track that standard needle 14 vertically moves.It is logical It crosses infrared transmitter 12 and emits infrared ray, electro-optical distance measurement module 11 handles signal, and is transmitted to operating platform 20, in operating platform 20 can be read distance of 14 needle point of standard needle apart from bitumen samples surface.
It is issued and is instructed to controller 5 by operating platform 20, operating transfer case 2 by controller 5 keeps overarm brace 6 downward It is mobile, reach the needle point of standard needle 14 accurately and the contact position on bitumen samples surface.
Then timing starts, and standard needle 14 starts to stop after 5s inside injection bitumen samples, will by displacement sensor 15 The depth of penetration of standard needle 14 is transmitted to operating platform 20, and needle penetration can be read by operating platform 20.Replacement standard needle 14 is chosen New position repeatedly measures and averages, and finally obtains Asphalt Penetration.
Controller 5 is C51 type single-chip microcontroller;Transfer case includes two groups of high-precision hydraulic oil pumps.

Claims (6)

1. a kind of automatic bitumen needle forcemeter, which is characterized in that including workbench (1), transfer case (2), the first vertical bar bracket (3), the second vertical bar bracket (4), controller (5), overarm brace (6), carriage, electro-optical distance measurement module (11), needle connecting rod (13), standard needle (14), thermostatic water bath (16), temperature control device and operating platform (20), wherein operating platform (20) respectively with control Device (5) processed, carriage, electro-optical distance measurement module (11) are connected with temperature control device, and electro-optical distance measurement module (11) is for acquiring standard Needle (14) gos deep into the deep degree of asphalt test piece;Temperature control device is used to control the water temperature of thermostatic water bath (16);First vertical bar bracket (3) Be arranged workbench (1) on, the free end of the first vertical bar bracket (3) and the second vertical bar bracket (4) connection, and with the second vertical bar bracket (4) telescopic connection;The free end connecting cross beam bracket (6) of second vertical bar bracket (4);Controller (5) control connection transfer case (2), there are two output shaft, one of output shaft is connect with the first vertical bar bracket (3) for transfer case (2) setting, drives first to erect Bar bracket (3) rotation;Another output shaft is connect with the second vertical bar bracket (4), drives the second vertical bar bracket (4) along the first vertical bar The axial direction of bracket (3) moves up and down;
One end of carriage is mounted on overarm brace (6), and can be moved back and forth along overarm brace (6);Other end connection The free end of needle connecting rod (13), needle connecting rod (13) connects standard needle (14);
Thermostatic water bath (16) is mounted on workbench (1), and is placed in the lower section of standard needle (14);Temperature control device is mounted on thermostatted water The bottom of slot (16).
2. a kind of automatic bitumen needle forcemeter according to claim 1, which is characterized in that temperature control device includes heating system (17), water pump (18) and temperature sensor (19), wherein heating system (17), water pump (18) and temperature sensor (19) are all provided with The bottom in thermostatic water bath (16) is set, and is connect with operating platform (20);Temperature sensor (19) is for acquiring thermostatic water bath (16) water temperature, and collected data are transferred to operating platform, operating platform (20) adds according to the information control received The start and stop of hot systems (17) and water pump (18).
3. a kind of automatic bitumen needle forcemeter according to claim 1, which is characterized in that carriage include sliding block (7), Connecting rod (8) and stepper motor (9), wherein sliding block (7) is mounted on overarm brace (6), and can be come along overarm brace (6) Return is dynamic;The lower end of sliding block (7) connects connecting rod (8), and the free end of connecting rod (8) connects stepper motor (9), stepper motor (9) output axis connection needle connecting rod (13).
4. a kind of automatic bitumen needle forcemeter according to claim 1, which is characterized in that carriage and needle connecting rod (13) Between be provided with cantilever (10), cantilever (10) is cylindrical structure, and coaxially arranged with needle connecting rod (13).
5. a kind of automatic bitumen needle forcemeter according to claim 1, which is characterized in that electro-optical distance measurement module (11) includes Infrared transmitter (12), displacement sensor (15) and processor, wherein infrared transmitter (12) for measurement standard needle (14) with The distance between asphalt test piece surface, will be data information transfer to processor;The data received are transferred to behaviour by processor Make on platform (20), operating platform controls the movement of standard needle (14) according to the information received;Displacement sensor (15) is used for Acquisition standard needle (14) gos deep into needle penetration when asphalt test piece, and collected data information transfer to operating platform is read number According to.
6. a kind of automatic bitumen needle forcemeter according to claim 1, which is characterized in that controller (5) is C51 type monolithic Machine.
CN201822139285.3U 2018-12-19 2018-12-19 A kind of automatic bitumen needle forcemeter Expired - Fee Related CN209432657U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822139285.3U CN209432657U (en) 2018-12-19 2018-12-19 A kind of automatic bitumen needle forcemeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822139285.3U CN209432657U (en) 2018-12-19 2018-12-19 A kind of automatic bitumen needle forcemeter

Publications (1)

Publication Number Publication Date
CN209432657U true CN209432657U (en) 2019-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112067505A (en) * 2020-09-23 2020-12-11 山东路达试验仪器有限公司 Automatic control method of asphalt penetration tester based on image recognition
CN112903532A (en) * 2021-03-13 2021-06-04 杭州市交通工程试验检测中心有限公司 Pitch penetration tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112067505A (en) * 2020-09-23 2020-12-11 山东路达试验仪器有限公司 Automatic control method of asphalt penetration tester based on image recognition
CN112903532A (en) * 2021-03-13 2021-06-04 杭州市交通工程试验检测中心有限公司 Pitch penetration tester

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190924

Termination date: 20201219

CF01 Termination of patent right due to non-payment of annual fee