CN210323031U - Asphalt mixture detection equipment - Google Patents

Abstract

The utility model provides an asphalt mixture detection device, which comprises a base, a liftable support plate is arranged on the base, a liftable pressure sensor is arranged above the support plate, a pressure head is arranged between the support plate and the pressure sensor, and the pressure The head is provided with a positioning hole, the support plate includes a first support plate and a second support plate, the first support plate is rotatably fitted above the second support plate, the first support plate is provided with a positioning piece, one end of the positioning piece can be connected with the positioning hole The second support plate is provided with a buffer groove, the other end of the positioning member is set in the buffer groove, the buffer groove is provided with a positioning groove, and one end of the positioning member located in the buffer groove is provided with a positioning column, and the positioning column is engaged with the buffer groove. The positioning groove also includes a reset mechanism. The reset mechanism is used to drive the first pallet to reset. When the indenter is impacted instantaneously, the offset will drive the positioning column to shift. At this time, the positioning column is separated from the positioning groove, and the positioning member moves along the buffer groove. Move a distance to avoid damage to the indenter or the positioning piece due to deflection.

Description

Asphalt mixture detection equipment

Technical Field

The utility model relates to a pitch test field, concretely relates to bituminous mixture check out test set.

Background

Before asphalt is paved, various performances of asphalt are required to be tested, wherein Marshall stability is an important parameter of the asphalt, but when an existing Marshall tester is used for testing, in order to align a pressure sensor with a pressure head, a positioning mechanism is usually arranged to position the pressure head, but sometimes the pressure head rises too fast, the pressure head is easy to deflect after colliding with the pressure sensor, and at the moment, the pressure head and a positioning piece generate torsional force, so that the pressure head or the positioning piece are easy to damage, and the problems are needed to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide asphalt mixture detection equipment which can reduce the acting force between a pressure head and a positioning piece when the pressure head deflects.

In order to solve the technical problem, the invention provides the following scheme: an asphalt mixture detection device comprises a base, a lifting supporting plate is arranged on the base, a lifting pressure sensor is arranged above the supporting plate, a pressure head is arranged between the supporting plate and the pressure sensor, a test piece is placed in the middle of the pressure head, a positioning hole is arranged on the pressure head,

the layer board includes first layer board and second layer board, first layer board normal running fit in second layer board top, be provided with the setting element on the first layer board, setting element one end salient in first layer board and can with the locating hole block, be provided with the dashpot on the second layer board, the other end of setting element set up in the dashpot, be provided with the constant head tank on the dashpot, the setting element is located one end in the dashpot is provided with the reference column, the reference column block in the constant head tank, still include canceling release mechanical system, canceling release mechanical system is used for ordering about first layer board resets.

Further, the method comprises the following steps: the pressure head includes pressure head and lower pressure head, go up the pressure head with be provided with between the pressure head down and be used for placing the cavity of test piece, be provided with on the pressure head down and pass the traveller and the displacement sensor of last pressure head, the locating hole sets up on the pressure head down.

Further, the method comprises the following steps: the reset mechanism is a torsion spring, the first supporting plate is connected with the second supporting plate through a rotating shaft, and the torsion spring is arranged on the rotating shaft of the first supporting plate.

Further, the method comprises the following steps: and a damping mechanism is arranged in the buffer groove and connected with the positioning piece.

Further, the method comprises the following steps: the damping mechanism is elastic rubber.

The invention has the beneficial effects that: when the pressure head receives impact in the twinkling of an eye, take place the skew and drive the reference column skew, the reference column breaks away from the constant head tank this moment, and the setting element removes one section distance along the dashpot to can not produce great torsion and friction between messenger's pressure head and the setting element, avoid pressure head or setting element to take place to damage because of deflecting.

Drawings

FIG. 1 is an overall schematic view of a device;

FIG. 2 is a side semi-sectional view of the pallet;

FIG. 3 is a top perspective view of the pallet;

the reference numbers are as follows: the device comprises a base 1, a sensor 2, an upper pressure head 31, a lower pressure head 32, a supporting plate 4, a first supporting plate 41, a second supporting plate 42, a positioning piece 5, a buffer groove 6, a positioning groove 71, a positioning column 72 and a damping mechanism 8.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

As shown in fig. 1 to 3, this application includes base 1, install lift actuating mechanism in the base 1, like elevator motor or cylinder, wherein lift actuating mechanism is connected with layer board 4 for drive layer board 4 goes up and down in base 1 top, layer board 4 top is provided with liftable pressure sensor 2, and is concrete, and the crossbeam is installed through the guide post in base 1 top, installs on the crossbeam and pushes down the mechanism and is connected with pressure sensor 2, layer board 4 with the pressure head has been placed between the pressure sensor 2, the pressure head middle part is used for placing the test piece, the locating hole has been seted up on the pressure head.

The supporting plate 4 comprises a first supporting plate 414 and a second supporting plate 424, the second supporting plate 424 is rotatably matched with the upper surface of the first supporting plate 414, a positioning member 5 is fixed on the first supporting plate 414, two ends of the positioning member 5 extend out of two side surfaces of the first supporting plate 414, wherein one end of the positioning member 5 protruding out of the upper side of the first supporting plate 414 can be clamped in the positioning hole card, a buffer groove 6 is arranged on the second supporting plate 424, the other end of the positioning member 5 extends into the buffer groove 6, a positioning groove 71 is arranged at the middle bottom of the buffer groove 6, a positioning column 72 is arranged at the end part of one end of the positioning member 5 positioned in the buffer groove 6, when the application works normally, the positioning column 72 is clamped in the positioning groove 71, in addition, the supporting plate further comprises a reset mechanism, specifically, the reset mechanism is a torsion spring arranged on the rotating shaft of the first supporting plate 414, the torsion spring is used to drive the first support plate 414 to reset.

Wherein, the pressure head includes pressure head 31 and lower pressure head 32, go up pressure head 31 with be provided with the arc wall down between the pressure head 32 respectively, two arc walls can enclose to be used for placing the cavity of test piece, be provided with on the pressure head 32 down and pass go up pressure head 31's traveller and displacement sensor 2, the locating hole is seted up in the bottom surface of pressure head 32 down.

Wherein, a damping mechanism 8 connected with the positioning piece 5 is also arranged in the buffer slot 6, and the damping mechanism 8 can be an elastic rubber block.

This application is when fixing a position the pressure head, with the pressure head block on reference column 72, when testing, layer board 4 drives the pressure head and rises, pressure sensor 2 descends, when pressure head and pressure sensor 2 relative motion speed are too fast, pressure sensor 2 strikes the pressure head easily and makes it take place the skew, the pressure head skew drives reference column 72 skew, reference column 72 breaks away from constant head tank 71 this moment, setting element 5 removes one section distance along dashpot 6, thereby can not produce great torsion and friction between messenger's pressure head and the setting element 5, avoid pressure head or setting element 5 to take place to damage because of deflecting, operating personnel takes place the skew back at the pressure head, the pressure head can descend, first layer board 414 resets under canceling release mechanical action.

Reference may be made to "T0709" in the present application for a marshall stability test method, wherein, because the damping mechanism 8 and the positioning column 72 are provided to fix and hold the positioning member 5, the pressure head will drive the positioning member 5 to shift only when strong and/or non-positive impact force is generated, and when testing, the pressure head slowly extrudes the test member, and the applied pressure is positive and relatively stable, so that the positioning member 5 will not shift when testing.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. An asphalt mixture detection device, comprising a base on which a liftable support plate is arranged, a liftable pressure sensor is arranged above the support plate, and a liftable pressure sensor is arranged between the support plate and the pressure sensor. There is an indenter, the middle of the indenter is used to place the test piece, and the indenter is provided with a positioning hole, The supporting plate includes a first supporting plate and a second supporting plate, the first supporting plate is rotatably fitted above the second supporting plate, a positioning member is provided on the first supporting plate, and one end of the positioning member protrudes The first support plate can be engaged with the positioning hole, the second support plate is provided with a buffer groove, the other end of the positioning member is set in the buffer groove, and the buffer groove is provided on the buffer groove. There is a positioning groove, one end of the positioning member located in the buffer groove is provided with a positioning column, the positioning column is engaged in the positioning groove, and a reset mechanism is also included, and the reset mechanism is used to drive the first The pallet is reset. 2. The asphalt mixture testing equipment according to claim 1, wherein the pressure head comprises an upper pressure head and a lower pressure head, and a space for placing the The cavity of the test piece, the lower pressure head is provided with a spool and a displacement sensor passing through the upper pressure head, and the positioning hole is arranged on the lower pressure head. 3. The asphalt mixture testing device according to claim 1, wherein the reset mechanism is a torsion spring, the first support plate is connected to the second support plate through a rotating shaft, and the torsion spring is arranged on the on the rotating shaft of the first pallet. 4 . The asphalt mixture testing equipment according to claim 1 , wherein a damping mechanism is provided in the buffer tank, which is connected to the positioning member. 5 . 5. The asphalt mixture testing device according to claim 4, wherein the damping mechanism is elastic rubber.

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