CN218725873U

CN218725873U - Bituminous mixture test piece make-up machine

Info

Publication number: CN218725873U
Application number: CN202223025011.4U
Authority: CN
Inventors: 刘福明; 何庆德; 杨志平; 孙红燕; 吴多
Original assignee: Nanchang Institute of Technology
Current assignee: Nanchang Institute of Technology
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-24
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses an asphalt mixture test piece forming machine, which comprises a base and a test mold, wherein the upper end of the base is provided with a fixed groove, the upper end of the base is fixedly connected with a U-shaped frame, the upper end of the U-shaped frame is fixedly connected with a hydraulic cylinder, the movable end of the hydraulic cylinder penetrates through the inner top part of the U-shaped frame and is fixedly connected with a pressure head, the base is provided with a fixed mechanism for fixing the test mold, the fixing mechanism comprises two sliding chutes symmetrically arranged at the upper end of the base, the inner walls of the two sliding chutes are symmetrically and slidably connected with two sliding blocks, the upper ends of the two sliding blocks are symmetrically and fixedly connected with two fixing rods, two the lateral wall fixedly connected with two risers of dead lever mutual approaching, two the lateral wall that the riser is close to each other has seted up two recesses. The utility model discloses a driving motor rotates, drives two splint and is close to each other and presss from both sides tight fixed with examination mould, and what adopt all is mechanical structure, and easy operation is convenient, and the dismantlement and the installation of examination mould are all very convenient.

Description

Bituminous mixture test piece make-up machine

Technical Field

The utility model relates to an asphalt mixture test piece processing equipment technical field especially relates to an asphalt mixture test piece make-up machine.

Background

The asphalt mixture is a mixture formed by mixing mineral aggregate and asphalt binder, and some polymers and wood cellulose are added, the asphalt mixture is usually used for paving roads, but the stability of the asphalt mixture needs to be tested before paving, and test pieces of the asphalt mixture need to be matched during testing, so that an asphalt mixture test piece forming machine is needed to process asphalt mixture test pieces.

In the use process of the existing asphalt mixture test piece forming machine, a Marshall compaction method is usually adopted, firstly, asphalt mixture is poured into a test mold, then a pressure head at a standard height falls down and is compacted for a certain number of times, so that partial mixture is rearranged, and the asphalt mixture is compacted.

Based on this, we propose an asphalt mixture test piece forming machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an asphalt mixture test piece forming machine.

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

the utility model provides an asphalt mixture test piece make-up machine, includes base and examination mould, the fixed slot has been seted up to the base upper end, base upper end fixedly connected with U type frame, U type frame upper end fixedly connected with hydraulic cylinder, the hydraulic cylinder expansion end runs through top and fixedly connected with pressure head in the U type frame, install on the base and carry out the fixed establishment who fixes to examination mould, fixed establishment includes that the symmetry is seted up two spouts, two in the base upper end spout inner wall symmetry sliding connection has two sliders, two slider upper end symmetry fixedly connected with two dead levers, two lateral wall fixedly connected with two risers that the dead lever is close to each other, two the lateral wall that the riser is close to each other has seted up two recesses, two the recess inner wall sliding connection has two splint.

Preferably, two install actuating mechanism in the spout, actuating mechanism is including rotating the two-way lead screw of connection at two spout inner walls, two-way lead screw lateral wall and two slider threaded connection, base lateral wall fixedly connected with motor, the motor output run through the base lateral wall and with two-way lead screw fixed connection.

Preferably, two the equal fixedly connected with a plurality of springs of recess inner wall, it is a plurality of the spring other end all with splint lateral wall fixed connection.

Preferably, a plurality of rolling grooves are formed in the bottom of each sliding groove, and a plurality of rolling balls are rotatably connected to the inner walls of the rolling grooves.

Preferably, a plurality of air outlet holes are formed in the upper end of the pressure head.

Preferably, the base lower extreme symmetry fixedly connected with support column, just the support column lower extreme all passes through expansion screw and ground fixed connection.

The utility model discloses following beneficial effect has:

1. through setting up fixed establishment and actuating mechanism, rotate through driving motor, drive two splint and be close to each other and press from both sides the tight fixed with examination mould clamp, all that adopts is mechanical structure, easy operation is convenient, and the dismantlement and the installation of examination mould are all very convenient.

2. Through setting up the spring, press from both sides the fastening regularly when two splint are close to each other to trying the mould, a plurality of springs can the atress compression, provide the buffering, avoid trying the surperficial atress suddenly of mould for try the mould damage.

Drawings

Fig. 1 is a schematic structural view of an asphalt mixture test piece forming machine provided by the utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view of B in fig. 1.

In the figure: the device comprises a base 1, a test die 2, a fixing groove 3, a 4U-shaped frame, a hydraulic oil cylinder 5, a pressure head 6, a sliding groove 7, a sliding block 8, a fixing rod 9, a vertical plate 10, a groove 11, a clamping plate 12, a bidirectional screw 13, a motor 14, a spring 15, a rolling groove 16, a ball 17 and an air outlet 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, an asphalt mixture test piece forming machine, including base 1 and examination mould 2, examination mould 2 is concave shape, base 1 lower extreme symmetry fixedly connected with support column, and the support column lower extreme all passes through inflation screw and ground fixed connection, fixed slot 3 has been seted up to base 1 upper end, base 1 upper end fixedly connected with U type frame 4, U type frame 4 upper end fixedly connected with hydraulic cylinder 5, hydraulic cylinder 5 expansion end runs through top and fixedly connected with pressure head 6 in the U type frame 4, install the fixed establishment that fixes examination mould 2 on the base 1, fixed establishment includes that the symmetry sets up two spouts 7 in base 1 upper end, two spout 7 inner wall symmetry sliding connection have two sliders 8, two slider 8 upper end symmetry fixedly connected with dead lever 9, two dead lever 9 are the L shape, two lateral wall fixedly connected with risers 10 that two dead levers 9 are close to each other, two recesses 11 have been seted up to the lateral wall that two risers 10 are close to each other, two recesses 11 inner wall sliding connection have two splint 12, it needs to explain, two splint 12 lateral walls have seted up anti-skid, can increase the frictional force between splint 12 and examination mould 2, promote the fixed effect.

Install actuating mechanism in two spouts 7, actuating mechanism is including rotating the two-way lead screw 13 of connecting at two spouts 7 inner walls, two-way lead screw 13 lateral wall and two slider 8 threaded connection, base 1 lateral wall fixedly connected with motor 14, motor 14 output run through base 1 lateral wall and with two-way lead screw 13 fixed connection, it needs to explain that, two slider 8 lateral walls all offset with spout 7 inner walls for two sliders 8 can not produce the rotation.

Two 11 equal fixedly connected with a plurality of springs 15 of inner wall of recess, a plurality of springs 15 other ends all with splint 12 lateral wall fixed connection, when two splint 12 are close to each other and press from both sides the fastening timing to trying mould 2, a plurality of springs 15 can the atress compression, provide the buffering, avoid trying mould 2 surperficial atress suddenly for try mould 2 and damage.

A plurality of rolling grooves 16 have all been seted up to the bottom in two spout 7, and a plurality of rolling grooves 16 inner wall rotates and is connected with a plurality of balls 17, and when two sliders 8 slided at two spout 7 inner walls respectively, a plurality of balls 17 can rotate, changes the sliding friction between slider 8 and the spout 7 inner wall into rolling friction, reduces frictional force, and the slider 8 of being more convenient for slides at spout 7 inner wall.

The upper end of the pressure head 6 is provided with a plurality of air outlets 18, and when the pressure head 6 tamps the asphalt mixture, the air outlets 18 can balance the pressure change in the pressure head 6.

In the using process, firstly, the test mold 2 is placed in the fixed groove 3, then the driving motor 14 rotates to drive the bidirectional screw 13 to rotate, further the two sliding blocks 8 are driven to slide on the inner walls of the two sliding grooves 7 respectively in a way of being close to each other, the two fixing rods 9 are driven to be close to each other, further the two vertical plates 10 are driven to be close to each other, the two clamping plates 12 are driven to be close to each other, the test mold 2 is clamped and fixed, when the two sliding blocks 8 slide on the inner walls of the two sliding grooves 7 respectively, the plurality of balls 17 can rotate, sliding friction between the sliding blocks 8 and the inner walls of the sliding grooves 7 is converted into rolling friction, the friction force is reduced, and the sliding blocks 8 can slide on the inner walls of the sliding grooves 7 more conveniently;

and then pouring the asphalt mixture into the test mold 2, driving the hydraulic oil cylinder 5 to stretch continuously, driving the pressure head 6 to move up and down continuously, and beating and tamping the asphalt mixture in the test mold 2 so as to slowly form the asphalt mixture test piece.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an asphalt mixture test piece make-up machine, includes base (1) and examination mould (2), its characterized in that, fixed slot (3) have been seted up to base (1) upper end, base (1) upper end fixedly connected with U type frame (4), U type frame (4) upper end fixedly connected with hydraulic cylinder (5), hydraulic cylinder (5) expansion end runs through U type frame (4) inside top and fixedly connected with pressure head (6), install on base (1) and carry out the fixed establishment fixed to examination mould (2), fixed establishment sets up two spout (7) in base (1) upper end including the symmetry, two spout (7) inner wall symmetry sliding connection has two sliders (8), two slider (8) upper end symmetry fixedly connected with two dead levers (9), two lateral wall fixedly connected with two risers (10) that dead lever (9) are close to each other, two lateral wall that riser (10) are close to each other has seted up two recess (11), two recess (11) inner wall sliding connection has two splint (12).

2. The asphalt mixture test piece forming machine according to claim 1, characterized in that driving mechanisms are installed in the two chutes (7), each driving mechanism comprises a bidirectional screw (13) rotatably connected to the inner walls of the two chutes (7), the side walls of the bidirectional screw (13) are in threaded connection with the two sliders (8), the side wall of the base (1) is fixedly connected with a motor (14), and the output end of the motor (14) penetrates through the side wall of the base (1) and is fixedly connected with the bidirectional screw (13).

3. The asphalt mixture test piece forming machine according to claim 1, wherein a plurality of springs (15) are fixedly connected to the inner walls of the two grooves (11), and the other ends of the springs (15) are fixedly connected with the side wall of the clamping plate (12).

4. The asphalt mixture test piece forming machine according to claim 2, wherein a plurality of rolling grooves (16) are formed in the bottom of each of the two sliding grooves (7), and a plurality of balls (17) are rotatably connected to the inner walls of the plurality of rolling grooves (16).

5. The asphalt mixture test piece forming machine according to claim 1, wherein a plurality of air outlets (18) are formed at the upper end of the pressure head (6).

6. The asphalt mixture test piece forming machine according to claim 1, wherein the lower end of the base (1) is symmetrically and fixedly connected with supporting columns, and the lower ends of the supporting columns are fixedly connected with the ground through expansion screws.