CN214703196U

CN214703196U - Penetration tester

Info

Publication number: CN214703196U
Application number: CN202120378659.6U
Authority: CN
Inventors: 丁纪壮; 杨康; 王如; 吕晓东; 王菁; 和鑫
Original assignee: Xi'an Municipal Construction Engineering Quality Inspection Co ltd
Current assignee: Xi'an Municipal Construction Engineering Quality Inspection Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-11-12
Anticipated expiration: 2031-02-19

Abstract

The utility model relates to a needle penetration tester relates to pitch check out test set's field, and it includes base, support, runner assembly, constant temperature bathtub and test assembly, and support and base are connected, runner assembly includes motor and carousel, the motor is located inside the base, the output shaft of motor extends to outside the base, the carousel is located on the base, the carousel with the coaxial fixed connection of output shaft of motor, constant temperature bathtub place in on the carousel, test assembly with leg joint, test assembly is located directly over the constant temperature bathtub. In the test process, when test points of the test component on the asphalt need to be changed to obtain a plurality of groups of test data, the motor is started to drive the constant temperature bathtub to rotate. This application has the effect of being convenient for adjust the position of constant temperature bathtub.

Description

Penetration tester

Technical Field

The application relates to the field of asphalt detection equipment, in particular to a penetration tester.

Background

The asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, is in a liquid state, has a black surface, and is soluble in carbon disulfide. Asphalt is a waterproof, moistureproof and anticorrosive organic cementing material, and is mainly used in the industries of coatings, plastics, rubber and the like, pavement and the like. The main performance indexes of asphalt include asphalt ductility, penetration and softening point, wherein the penetration of asphalt is an index representing the degree and consistency of softness and hardness of asphalt and the capability of resisting shear failure and reflecting the relative viscosity of asphalt under a certain condition. The asphalt testing process is as follows: the standard penetration depth into a sample of asphalt measured as the penetration depth in 1/10 mm was measured at 25 c and 5 seconds under a 100 gram load.

At present, the related art, such as application document with application number 201620899492.7, discloses an asphalt penetration tester, which comprises a base, wherein a horizontal adjusting screw is arranged below the base, and a constant temperature bathtub is arranged above the base; the lifting support is connected with the base, and a fine adjustment hand wheel and a reflector are arranged on the lifting support; the measuring bar is located the side of lifting support, the needle connecting rod is located the measuring bar below, the test needle can be dismantled with the needle connecting rod and be connected, test needle one end is equipped with sawtooth portion, be connected through the retaining member between needle connecting rod and the test needle, retaining member end connection has the briquetting, the one end of briquetting is the sawtooth, the sawtooth cooperatees with the sawtooth portion, the retaining member still is equipped with screw thread portion and dwang, the lateral wall of needle connecting rod is equipped with the screw hole, the screw thread portion and the screw hole of retaining member cooperate. During the use, the test needle is connected more firmly with the needle connecting rod, has improved the rate of accuracy of test, can prevent moreover that the test needle from dropping along vertical direction when dismantling, avoids damaging test needle and instrument.

In view of the above-mentioned related art, in the testing process, it is usually necessary to perform multiple tests on asphalt to obtain an average value, so as to reduce the test error, and during the multiple tests, it is necessary to adjust the position of the thermostatic bathtub, so as to avoid the situation that the test needle penetrates the same point of asphalt multiple times, so that the test data is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the position to the constant temperature bathtub to adjust, the application provides a penetration tester.

The application provides a penetration tester adopts following technical scheme:

the utility model provides a penetration tester, includes base and support, and support and base are connected, still includes rotating assembly, constant temperature bathtub and test assembly, rotating assembly includes motor and carousel, the motor is located inside the base, the output shaft of motor extends to outside the base, the carousel is located on the base, the carousel with the coaxial fixed connection of output shaft of motor, the constant temperature bathtub place in on the carousel, test assembly with leg joint, test assembly is located directly over the constant temperature bathtub.

Through adopting above-mentioned technical scheme, to pitch test process, when needing the position of adjustment constant temperature bathtub, the starter motor, the output shaft of motor drives the carousel and rotates, drives the constant temperature bathtub when the carousel rotates and rotates, can change the pricking point of pitch in test assembly and the constant temperature bathtub to be convenient for carry out a lot of tests to pitch, rotate through motor drive constant temperature bathtub, be convenient for quick, steady position to constant temperature bathtub adjusts.

Optionally, the test assembly includes a needle connecting rod and a test needle, the needle connecting rod with the support sliding connection, test needle one end with the connection can be dismantled to the needle connecting rod.

Through adopting above-mentioned technical scheme, during the experiment, the needle connecting rod slides towards the direction that is close to the constant temperature bathtub under fixed load, drives the test needle when the needle connecting rod slides and pierces the pitch, and during many times of experiments, be convenient for dismantle the test needle and wash to guarantee test data's accuracy.

Optionally, the support includes guide bar, connecting seat and driving piece, the guide bar with base fixed connection, the connecting seat with guide bar sliding connection, the driving piece is used for driving the connecting seat along the guide bar slides.

Through adopting above-mentioned technical scheme, according to how much of sample in the constant temperature bathtub, utilize the driving piece to drive the connecting seat and drive the guide bar and slide, drive the test assembly lift when the connecting seat slides for the needle point of test needle all the time with pitch surface contact, be convenient for adjust the position of test assembly according to how much of sample, improved the application scope of tester.

Optionally, the driving part includes a rack, a main gear and a pinion, the rack is fixedly connected to the guide rod, the main gear is rotatably connected to the connecting seat, the main gear is engaged with the rack, the pinion is rotatably connected to the connecting seat, the pinion is engaged with the rack, and a radius of the main gear is greater than a radius of the pinion.

Through adopting above-mentioned technical scheme, when adjusting the position of test subassembly, when rotating the master gear, the master gear rotates, because master gear and rack toothing, consequently the master gear can drive the connecting seat when rotating and go up and down to adjust the position of test subassembly, the radius of pinion is less than the radius of master gear, consequently rotates the pinion and can finely tune the position of test subassembly, above-mentioned device simple structure, convenient operation, be favorable to quick accurate position to the test subassembly to be adjusted.

Optionally, the main gear and the pinion are fixedly connected with a hand wheel.

By adopting the technical scheme, the hand wheel is rotated to drive the main gear or the pinion to rotate, so that the rotation angle of the main gear and the pinion can be accurately controlled conveniently.

Optionally, still include measuring component, measuring component includes displacement sensor, scale and display, displacement sensor with connecting seat fixed connection, scale and displacement sensor sliding connection, scale one end with the butt of needle connecting rod, displacement sensor's output and display electric connection, the display with displacement sensor fixed connection.

Through adopting above-mentioned technical scheme, when the test needle pierces to pitch, the scale removes along with the needle connecting rod, and displacement sensor converts the displacement volume of scale into the signal of telecommunication and conveys for the display, and the display can show the value of degree of penetration, and above-mentioned operation need not artifical reading, has effectively improved the experimental degree of accuracy of tester.

Optionally, the base is fixedly connected with an illuminating lamp.

By adopting the technical scheme, good lighting conditions are provided through the lighting lamp, so that the needle tip of the test needle is accurately contacted with the asphalt surface by an operator, and the test accuracy of the tester is improved.

Optionally, a magnifying glass is fixedly connected to the base.

By adopting the technical scheme, the magnifying glass magnifies the picture of the contact position of the needle point and the asphalt, so that the needle point of the test needle is accurately contacted with the surface of the asphalt, and the test accuracy of the tester is improved.

Optionally, an electromagnet is arranged on the connecting seat, the electromagnet is in contact with the needle connecting rod, and the electromagnet is electrically connected with the power supply.

Through adopting above-mentioned technical scheme, when beginning the experiment, cut off the power of electro-magnet, the magnetism of electro-magnet disappears, and the needle connecting rod slides along the connecting seat and can test pitch, does not need operating personnel manual control needle connecting rod to slide, has reduced the error of manual operation, is favorable to improving the experimental degree of accuracy.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the needle penetration tester is provided with the rotating assembly, and in the test process, the rotating assembly drives the constant temperature bathtub to rotate, so that the position of the constant temperature bathtub is convenient to adjust;

2. the penetration tester provided by the application is provided with the measuring assembly, and the penetration value obtained by the test is directly displayed through the measuring assembly, so that the error of manual reading is reduced, and the accuracy of the tester is effectively improved;

3. the application provides a pair of penetration tester is equipped with the electro-magnet, through the release of electro-magnet control to the needle connecting rod, has reduced the error of manual operation, is favorable to improving the experimental degree of accuracy.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a penetration tester according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a needle penetration tester base, drive assembly and a thermostated bath according to an embodiment of the application;

FIG. 3 is a schematic structural diagram of a driving member of a penetration tester according to an embodiment of the present application.

Reference numerals: 1. a base; 11. a cavity; 12. a gooseneck; 13. an illuminating lamp; 14. a magnifying glass; 2. a rotating assembly; 21. a motor; 22. a turntable; 3. a constant temperature bathtub; 4. a support; 41. a guide bar; 42. a connecting seat; 421. a guide hole; 422. mounting grooves; 423. a first through hole; 424. a second through hole; 425. a slide hole; 43. a drive member; 431. a rack; 432. a main gear; 4321. a main shaft; 433. a pinion gear; 4331. a counter shaft; 44. a hand wheel; 5. testing the component; 51. a needle link; 52. a test pin; 53. an electromagnet; 6. a measurement assembly; 61. a displacement sensor; 62. a scale; 63. a display.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a penetration tester. Referring to fig. 1 and 2, the penetration tester includes a base 1, a rotating assembly 2, a thermostatic bath 3, a stand 4, a test assembly 5, and a measurement assembly 6.

Referring to fig. 2, the rotating assembly 2 includes a motor 21 and a rotating disc 22, a cavity 11 is formed in the base 1, the motor 21 is located in the cavity 11, a casing of the motor 21 is fixedly connected with the inner wall of the cavity 11 through screws, an output shaft of the motor 21 penetrates through the top wall of the base 1 and extends out of the cavity 11, the axis of the output shaft of the motor 21 is vertically arranged, the rotating disc 22 is located above the base 1, the rotating disc 22 is fixedly connected with the output shaft of the motor 21 through a key in a coaxial mode, and the constant-temperature bathtub 3 is placed on the rotating disc 22.

Referring to fig. 1 and 3, the bracket 4 includes a guide rod 41, a connecting seat 42 and a driving member 43, the upper surfaces of the guide rod 41 and the base 1 are welded, the axis of the guide rod 41 is vertically arranged, a guide hole 421 is formed in the connecting seat 42, and the connecting seat 42 is slidably connected with the guide rod 41 through the guide hole 421.

Referring to fig. 1 and 3, the driving member 43 includes a rack 431, a main gear 432, and a sub-gear 433, the rack 431 is welded to the guide rod 41, and an axial direction of the rack 431 is parallel to an axial direction of the guide rod 41; the connecting seat 42 is provided with a mounting groove 422, the mounting groove 422 is communicated with the guide hole 421, the main gear 432 is positioned in the mounting groove 422 and is meshed with the rack 431, a first through hole 423 is formed in a side wall of the connecting seat 42 in a penetrating manner, the first through hole 423 is communicated with the mounting groove 422, the main gear 432 is coaxially welded with the main shaft 4321, the main shaft 4321 is rotatably connected into the first through hole 423, one end of the main shaft 4321 extends out of the first through hole 423, and one end of the main shaft 4321 extending out of the first through hole 423 is coaxially welded with the hand wheel 44; the pinion 433 is located in the mounting groove 422 and meshed with the rack 431, the radius of the pinion 433 is smaller than that of the main gear 432, a second through hole 424 is formed in a side wall, away from the first through hole 423, of the connecting seat 42 in a penetrating mode, the second through hole 424 is communicated with the mounting groove 422, a secondary shaft 4331 is coaxially welded to the pinion 433, the secondary shaft 4331 is rotatably connected into the second through hole 424, one end of the secondary shaft 4331 extends out of the second through hole 424, and a hand wheel 44 is welded to a barrel shaft at one end, extending out of the second through hole 424, of the secondary shaft 4331.

Referring to fig. 1, the test assembly 5 is located directly above the thermostatic bathtub 3, the test assembly 5 includes a needle connecting rod 51 and a test needle 52, a sliding hole 425 is formed in the connecting seat 42 in a penetrating manner, the needle connecting rod 51 is connected in the sliding hole 425 in a sliding manner, the sliding direction of the needle connecting rod 51 is vertically arranged, one end of the test needle 52 far away from the needle point is connected with the bottom of the needle connecting rod 51 in a threaded manner, and the axis of the test needle 52 is eccentrically arranged with the axis of the thermostatic bathtub 3.

Referring to fig. 1, measuring unit 6 includes displacement sensor 61, scale 62 and display 63, and displacement sensor 61 and connecting seat 42 adopt screw fixed connection, and scale 62 and displacement sensor 61's receiving terminal sliding connection, the vertical setting of the slip direction of scale 62, the top of scale 62 and the roof butt of needle connecting rod 51, display 63 and displacement sensor 61's output electric connection, and display 63 and displacement sensor 61 adopt screw fixed connection.

Referring to fig. 1, two gooseneck tubes 12 are welded on a base 1, one end of one gooseneck tube 12, which is far away from the base 1, is fixedly connected with a lighting lamp 13 through screws, and one end of the other gooseneck tube 12, which is far away from the base 1, is fixedly connected with a magnifying lens 14 through screws. The connecting seat 42 is fixedly connected with the electromagnet 53 by adopting a screw at the position of the sliding hole 425, one end of the electromagnet 53 extends into the sliding hole 425 to be abutted against the needle connecting rod 51, and the electromagnet 53 is electrically connected with a power supply.

The implementation principle of the penetration tester in the embodiment of the application is as follows: before testing, the asphalt is put into a constant temperature bathtub 3 and heated to a specified temperature; the height of the connection socket 42 is then adjusted by turning the hand wheel 44.

During adjustment, the hand wheel 44 is rotated, the hand wheel 44 drives the main gear 432 to rotate, so that the connecting seat 42 is driven to slide along the guide rod 41, then the hand wheel 44 is rotated to drive the auxiliary gear 433 to rotate, the connecting seat 42 is finely adjusted, the connecting seat 42 drives the needle connecting rod 51 to move when ascending and descending along the guide rod 41, the needle connecting rod 51 is moved, the position of the needle point of the test needle 52 is observed through the magnifier 14 in the moving process, and the needle point of the test needle 52 is just in contact with the surface of asphalt.

During the test, the power supply of the electromagnet 53 is cut off, the attraction of the electromagnet 53 to the needle connecting rod 51 disappears, the needle connecting rod 51 slides to drive the testing needle 52 to penetrate into the asphalt, the scale 62 moves along with the needle connecting rod 51 in the process that the testing needle 52 penetrates into the asphalt, the displacement sensor 61 converts the displacement of the scale 62 into an electric signal and transmits the electric signal to the display 63, and after the testing needle 52 penetrates for a set time, an operator records the number of the display 63.

After the test is finished once, the test needle 52 is detached and cleaned, then the test needle 52 is firmly connected with the needle connecting rod 51, the motor 21 is started, the motor 21 drives the turntable 22 to rotate, the thermostatic bathtub 3 is driven to rotate when the turntable 22 rotates, the motor 21 is closed after the thermostatic bathtub 3 rotates by a moving angle, the previous test operation is repeated, a plurality of needle penetration values of asphalt can be laterally obtained, and then the average value of a plurality of groups of needle penetration values is obtained, namely the needle penetration of the asphalt.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a penetration tester, includes base (1) and support (4), and support (4) and base (1) are connected, its characterized in that: still include runner assembly (2), constant temperature bathtub (3) and test assembly (5), runner assembly (2) includes motor (21) and carousel (22), motor (21) are located inside base (1), the output shaft of motor (21) extends to outside base (1), carousel (22) are located on base (1), carousel (22) with the coaxial fixed connection of output shaft of motor (21), constant temperature bathtub (3) place in on carousel (22), test assembly (5) with support (4) are connected, test assembly (5) are located directly over constant temperature bathtub (3).

2. A penetration tester as claimed in claim 1, wherein: the test assembly (5) comprises a needle connecting rod (51) and a test needle (52), the needle connecting rod (51) is connected with the support (4) in a sliding mode, and one end of the test needle (52) is detachably connected with the needle connecting rod (51).

3. A penetration tester as claimed in claim 2, wherein: support (4) include guide bar (41), connecting seat (42) and driving piece (43), guide bar (41) with base (1) fixed connection, connecting seat (42) with guide bar (41) sliding connection, driving piece (43) are used for driving connecting seat (42) are followed guide bar (41) slide.

4. A penetration tester as claimed in claim 3, wherein: the driving piece (43) comprises a rack (431), a main gear (432) and a secondary gear (433), the rack (431) is fixedly connected with the guide rod (41), the main gear (432) is rotatably connected with the connecting seat (42), the main gear (432) is meshed with the rack (431), the secondary gear (433) is rotatably connected with the connecting seat (42), the secondary gear (433) is meshed with the rack (431), and the radius of the main gear (432) is larger than that of the secondary gear (433).

5. The penetration tester of claim 4, wherein: the main gear (432) and the auxiliary gear (433) are fixedly connected with a hand wheel (44).

6. The penetration tester of claim 4, wherein: still include measurement element (6), measurement element (6) include displacement sensor (61), scale (62) and display (63), displacement sensor (61) with connecting seat (42) fixed connection, scale (62) and displacement sensor (61) sliding connection, scale (62) one end with needle connecting rod (51) butt, displacement sensor (61)'s output and display (63) electric connection, display (63) with displacement sensor (61) fixed connection.

7. A penetration tester as claimed in claim 1, wherein: the base (1) is fixedly connected with an illuminating lamp (13).

8. A penetration tester as claimed in claim 1, wherein: the base (1) is fixedly connected with a magnifier (14).

9. The penetration tester of claim 6, wherein: the connecting seat (42) is provided with an electromagnet (53), the electromagnet (53) is in contact with the needle connecting rod (51), and the electromagnet (53) is electrically connected with a power supply.