CN217845835U

CN217845835U - Transmission mechanism of full-automatic asphalt low-temperature extensibility tester

Info

Publication number: CN217845835U
Application number: CN202221370903.5U
Authority: CN
Inventors: 韩霞; 焦俊文; 张强; 郭宇宁; 李珍娟; 刘剑钊; 韩凤
Original assignee: Shanxi Zhongding Construction Engineering Quality Inspection Co ltd
Current assignee: Shanxi Zhongding Construction Engineering Quality Inspection Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-11-18
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a drive mechanism of full-automatic pitch low temperature extensibility tester, include the square magnetism hood that separates with tester organism bolt installation, the square separates and installs the screw rod on the magnetism hood, the lower extreme of screw rod extends to the screw thread intracavity of square activity post and rather than threaded connection, square activity post slides and sets up the intracavity is led to the square of square magnetism hood, the lower extreme of square activity post is fixed with magnetic part just magnetic part is in with pegging graft square pole magnetism in the intracavity is led to the square, the lower extreme of square pole is fixed with the pressure head down. A drive mechanism of full-automatic pitch low temperature extensibility tester, the lower pressure member that becomes square pole and lower pressure head group utilizes magnetic part and square activity post together fixed, can conveniently change the lower pressure member, its square separates the magnetic shield cover simultaneously and can completely cut off the magnetic field of magnetic part, avoids its magnetism to adsorb other articles on it, is equipped with the magnetism isolating plate on the lower pressure member, improves the magnetic screen effect.

Description

Transmission mechanism of full-automatic asphalt low-temperature extensibility tester

Technical Field

The utility model relates to an experimental technical field of pitch elongation, in particular to transmission of full-automatic pitch low temperature elongation tester.

Background

Ductility is an important index in the performance test of asphalt. The ductility of the asphalt is the property that the asphalt is not damaged because of deformation under the action of external force, and the shape of the asphalt after deformation can be kept unchanged after the external force is removed, so that the ductility of the asphalt is reflected, and the ductility of the asphalt is generally detected by using an asphalt ductility tester.

The transmission mechanism of the asphalt ductility tester generally comprises a motor, a screw, a movable column which is in threaded connection with the screw and moves up and down linearly, and a pressing piece arranged at the lower end of the movable column, wherein the pressing piece comprises an installation column and a pressing head fixed on the installation column.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a full-automatic pitch low temperature extensibility tester's drive mechanism can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a transmission mechanism of a full-automatic asphalt low-temperature extensibility tester comprises a square magnetism isolating cover mounted with a tester body bolt, a mounting disc is mounted on the square magnetism isolating cover, a screw rod is rotatably mounted on the mounting disc, the upper end of the screw rod is meshed with an output shaft of a driving motor through a gear, the lower end of the screw rod extends into a threaded cavity of a square movable column and is in threaded connection with the threaded cavity, the square movable column is slidably arranged in a square through cavity of the square magnetism isolating cover, a magnetic part is fixed at the lower end of the square movable column and is magnetically fixed with a rod inserted in the square through cavity, and a lower pressing head is fixed at the lower end of the square rod.

Preferably, the magnetic part is an electromagnet, and the electromagnet is electrically connected with a transformer installed on the tester.

Preferably, the magnetic member is provided as a permanent magnet.

Preferably, the permanent magnet is configured as a neodymium iron boron magnet.

Preferably, two ends of the square movable column are symmetrically provided with sliding blocks, and the two groups of sliding blocks are respectively arranged in sliding chutes arranged in the inner cavity of the square magnetic shield in a sliding manner.

Preferably, the lower end of the square through cavity is connected with a frustum-shaped guide cavity.

Preferably, the square rod is separated by the magnetism isolating plate, two separated parts of the square rod are both arranged on the magnetism isolating plate, and the lower end of the square magnetism isolating cover is positioned in the inner cavity of the magnetism isolating plate.

Compared with the prior art, the invention has the following beneficial effects:

1. the lower pressing piece consisting of the square rod and the lower pressing head is fixed together by the magnetic piece and the square movable column, so that the lower pressing piece can be conveniently replaced, and meanwhile, the square magnetic shield can isolate the magnetic field of the magnetic piece to avoid other objects being magnetically adsorbed on the square magnetic shield.

2. The lower pressing piece is provided with a magnetic isolation plate, and the magnetic isolation plate and the square magnetic isolation cover form a sealed magnetic isolation body, so that the magnetism of the magnetic piece can be completely isolated, and the magnetic shielding effect is improved.

Drawings

FIG. 1 is an overall structure diagram of a transmission mechanism of the full-automatic asphalt low-temperature ductility tester of the utility model;

FIG. 2 is a partial sectional view of the transmission mechanism of the full-automatic asphalt low-temperature ductility tester of the present invention;

fig. 3 is the utility model relates to a driving mechanism's of full-automatic pitch low temperature extensibility tester pushes down a block structure chart.

In the figure: 1. a square magnetic shield; 2. mounting a disc; 3. a screw; 4. a drive motor; 5. a square movable column; 6. a square through cavity; 7. a magnetic member; 8. a square bar; 9. a lower pressure head; 10. a frustum-shaped guide cavity; 11. a slider; 12. and a magnetic isolation plate.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1-3, a transmission mechanism of a full-automatic asphalt low-temperature ductility tester comprises a square magnetic shield 1 mounted with bolts on a tester body, a mounting disc 2 is mounted on the square magnetic shield 1, a screw rod 3 is rotatably mounted on the mounting disc 2, the upper end of the screw rod 3 is engaged with an output shaft of a driving motor 4 through a gear, the lower end of the screw rod 3 extends into a threaded cavity of a square movable column 5 and is in threaded connection with the threaded cavity, the square movable column 5 is slidably arranged in a square through cavity 6 of the square magnetic shield 1, a magnetic member 7 is fixed at the lower end of the movable column 5, the magnetic member 7 is magnetically fixed with a square rod 8 inserted in the square through cavity 6, a lower pressure head 9 is fixed at the lower end of the square rod 8, and a lower pressure piece composed of the square rod 8 and the lower pressure head 9 is fixed with the square movable column 5 through the magnetic member 7, so that the lower pressure piece can be conveniently replaced, and the square magnetic shield 1 can isolate the magnetic field of the magnetic member 7 and avoid other objects from being adsorbed on the square magnetic shield.

The magnetic piece 7 is set as an electromagnet, the electromagnet is electrically connected with a transformer arranged on the tester, the electromagnet can control the existence of the magnetism by controlling the on-off of the current, the installation and the replacement of the lower piece and the square movable column 5 are convenient, and the magnitude of the voltage input into the electromagnet 7 can be controlled by the transformer so as to improve the strength of the magnetism.

The magnetic member 7 is provided as a permanent magnet.

The permanent magnet is set to be an Nd-Fe-B magnet which has strong magnetism and is beneficial to the stable fixation of the square movable column 5 and the lower pressing piece.

The two ends of the square movable column 5 are symmetrically provided with the sliding blocks 11, and the two groups of sliding blocks 11 are respectively arranged in the sliding grooves arranged in the inner cavity of the square magnetic shield 1 in a sliding way, so that the upper end of the square rod 8 can be prevented from moving out of the square through cavity 6, and the square rod 8 has a good limiting function.

The lower end of the square through cavity 6 is connected with a frustum-shaped guide cavity 10, so that the square rod 8 and the square magnetic shield 1 can be conveniently inserted and connected in a guiding way.

The square rod 8 is separated by the magnetic isolation plate 12, two separated parts of the square rod 8 are both arranged on the magnetic isolation plate 12, the lower end of the square magnetic isolation cover 1 is positioned in the inner cavity of the magnetic isolation plate 12, when the lower pressing piece presses asphalt downwards, the square magnetic isolation cover 1 always moves in the inner cavity of the magnetic isolation plate 12 and is not separated from the inner cavity, the magnetic isolation plate 12 and the square magnetic isolation cover 1 form a sealed magnetic isolation body, the magnetism of the magnetic piece 7 can be completely isolated, and the influence of the magnetism on other objects is avoided.

It should be noted that the utility model relates to a transmission of full-automatic pitch low temperature elongation tester, accessible driving motor 4 utilizes rotatory screw rod 3 to make square movable column 5 drive the pushing down piece and do the extrusion test operation to pitch, utilize magnetism piece 7 and square movable column 5 to fix the pushing down piece that square pole 8 and lower pressure head 9 are constituteed together, can conveniently change the pushing down piece, its square magnetic shield 1 can isolate the magnetic field of magnetism piece 7 simultaneously, avoid its magnetism to adsorb other article on it, be equipped with magnetic shield 12 on the pushing down piece, when the pushing down piece advances to carry out the pushing down motion to pitch, its square magnetic shield 1 removes all the time in magnetic shield 12's inner chamber and does not take place to break away from with it, its magnetic shield 12 and square magnetic shield 1 form a sealed magnetic shield, can completely isolate the magnetism of magnetism piece 7, avoid magnetism to produce the influence to other articles.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a drive mechanism of full-automatic pitch low temperature extensibility tester which characterized in that: the device comprises a square magnetic shield (1) which is mounted with a tester body through bolts, wherein a mounting disc (2) is mounted on the square magnetic shield (1), a screw rod (3) is rotatably mounted on the mounting disc (2), the upper end of the screw rod (3) is meshed with an output shaft of a driving motor (4) through a gear, the lower end of the screw rod (3) extends into a threaded cavity of a square movable column (5) and is in threaded connection with the threaded cavity, the square movable column (5) is slidably arranged in a square through cavity (6) of the square magnetic shield (1), a square magnetic piece (7) is fixed at the lower end of the movable column (5), the magnetic piece (7) is magnetically fixed with a square rod (8) which is inserted into the square through cavity (6), and a lower pressure head (9) is fixed at the lower end of the square rod (8).

2. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to claim 1, characterized in that: the magnetic part (7) is arranged to be an electromagnet, and the electromagnet is electrically connected with a transformer installed on the tester.

3. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to claim 1, characterized in that: the magnetic part (7) is set as a permanent magnet.

4. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to claim 3, characterized in that: the permanent magnet is set to be a neodymium iron boron magnet.

5. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to any one of claims 1 to 4, characterized in that: the two ends of the square movable column (5) are symmetrically provided with sliding blocks (11), and the two groups of sliding blocks (11) are respectively arranged in sliding grooves arranged in the inner cavity of the square magnetism isolating cover (1) in a sliding way.

6. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to any one of claims 1 to 4, characterized in that: the lower end of the square through cavity (6) is connected with a frustum-shaped guide cavity (10).

7. The transmission mechanism of the full-automatic asphalt low-temperature ductility tester according to any one of claims 1 to 4, characterized in that: the square rod (8) is separated by a magnetic separation plate (12), two separated parts of the square rod (8) are arranged on the magnetic separation plate (12), and the lower end of the square magnetic separation cover (1) is positioned in the inner cavity of the magnetic separation plate (12).