CN212748585U

CN212748585U - Bituminous paving rut testing machine of atmospheric pressure constant voltage

Info

Publication number: CN212748585U
Application number: CN202021130550.2U
Authority: CN
Inventors: 于中民; 张军锋
Original assignee: Cangzhou Hanton Science Test Instruments Co ltd
Current assignee: Xianxian Xingyu Test Instrument Technology Development Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-03-19
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to the technical field of rut test devices, in particular to an air pressure constant pressure asphalt pavement rut test machine, which comprises a test mold bearing plate, a counter-force frame, two rubber wheel supports, two linear sliders, linear guide rails and I-shaped steel rails, wherein the bottom of the I-shaped steel rails is provided with the linear guide rails, the linear sliders are arranged on the linear guide rails, the lower surfaces of the linear sliders are fixedly connected with a small sliding plate, an optical axis penetrates through the small sliding plate, the lower end of the optical axis is fixedly connected with the rubber wheel supports, the lower part of each rubber wheel is provided with the test mold bearing plate, the upper surface of the small sliding plate is fixedly connected with an air cylinder, the extending end of the air cylinder is provided with an air cylinder rod, the top of the optical axis is fixedly connected with a loading beam, and the rut test mold is clamped by using a test mold fixing baffle and a test mold movable baffle, and automatic ascending and descending of the rubber wheel can be realized.

Description

Bituminous paving rut testing machine of atmospheric pressure constant voltage

Technical Field

The utility model relates to a rut test device technical field, more specifically say, are bituminous paving rut testing machine of atmospheric pressure constant voltage.

Background

The asphalt pavement rut testing machine is a special device for testing the rut resistance of asphalt pavement in a laboratory environment. According to different test requirements, a user needs to adjust the pressure of the test wheel from 0.7MPa to 1.4 MPa. In current product, through adding the balancing weight and realizing on experimental round when experimental round adjustment of holding down force. The counter weight of about 75kg corresponding to 0.7MPa, it is a physical activity to carry and install the counter weight, and the actual operation is very difficult.

The rubber wheel pressure of the existing rut testing machine is inconvenient to adjust and difficult to meet the experimental requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an asphalt pavement rut testing machine of atmospheric pressure constant voltage to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an air pressure constant-pressure asphalt pavement rut testing machine comprises a test mold bearing plate, a counter-force frame, two rubber wheel supports, linear sliders, linear guide rails and I-shaped steel rails, wherein the end parts of the I-shaped steel rails are fixedly connected with the counter-force frame through screws, the linear guide rails are mounted at the bottoms of the I-shaped steel rails, the linear sliders are mounted on the linear guide rails, the lower surfaces of the linear sliders are fixedly connected with a sliding trolley plate, an optical shaft penetrates through the sliding trolley plate, the lower ends of the optical shafts are fixedly connected with the rubber wheel supports, the lower ends of the rubber wheel supports are rotatably connected with rubber wheels, the test mold bearing plate is arranged below the rubber wheels, the upper surface of the sliding trolley plate is fixedly connected with an air cylinder, an air cylinder rod is mounted at the extending end of the air cylinder, a loading cross beam is fixedly connected at the top of the optical shaft, the lower surface of the sliding trolley board is provided with a rotating shaft, a horizontal dragging pull rod is sleeved on the rotating shaft, and the horizontal dragging pull rod is rotatably connected with the rotating shaft.

Further: the linear sliding block is connected with the linear guide rail in a sliding mode.

Further: the number of the optical axes is two, and the optical axes are arranged symmetrically left and right.

Further: the optical axis is sleeved with a linear ball bearing, the lower end of the linear ball bearing is fixedly connected with the sliding trolley plate, and the optical axis is connected with the sliding trolley plate in a sliding mode through the linear ball bearing.

Further: the upper surface of examination mould loading board fixedly connected with examination mould fixed stop, the upper surface detachably of examination mould loading board installs examination mould adjustable fender, still installs examination mould handle jackscrew on the examination mould loading board, the tip and the examination mould adjustable fender butt of examination mould handle jackscrew.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: the embodiment of the utility model provides an in, utilize examination mould fixed stop, examination mould adjustable fender presss from both sides tight rut examination mould, make rut examination mould remain stable, the clamping is fast, utilize the driving piece to drive the level and pull the pull rod and be reciprocating motion, make the rubber wheel roll back and forth on the rut examination mould, it is experimental to carry out the rut, this device can be according to actual demand, control the rubber wheel and act on the pressure of rut examination mould, can also realize that the automation of rubber wheel rises and descends, convenience of customers changes rut examination mould, easy operation is convenient, the inconvenient problem of rubber wheel pressure adjustment of current rut testing machine has been solved.

Drawings

FIG. 1 is a front view of an embodiment 1 of an asphalt pavement rutting tester with constant air pressure;

FIG. 2 is a schematic structural diagram of an embodiment 1 of an asphalt pavement rut testing machine with constant air pressure;

FIG. 3 is a left side view of an embodiment 1 of an asphalt pavement rutting tester with constant air pressure;

FIG. 4 is a perspective view of example 1 of an asphalt pavement rut testing machine with constant air pressure.

The reference numerals in the schematic drawings illustrate: 1-testing a mould bearing plate; 2-rutting and testing the mold; 3-testing a mould handle jackscrew; 4-a counter-force frame; 5-a rubber wheel; 6-rubber wheel support; 7-sliding trolley board; 8-linear slide block; 9-a linear guide; 10-i-rail; 11-a cylinder; 12-optical axis; 13-a loading beam; 14-a tension centering assembly; 15-a cylinder rod; 16-horizontal drag pull rod; 17-linear ball bearings; 18-a screw; 19-testing a fixed baffle; 20-testing a movable baffle; 21-rotating shaft.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention, and the following embodiments are combined to further describe the present invention.

Example 1

Referring to fig. 1-4, in an embodiment of the present invention, an air pressure constant pressure bituminous pavement rut testing machine includes a test mold bearing plate 1, a counterforce frame 4, a rubber wheel support 6, a linear slider 8, a linear guide rail 9 and two i-shaped steel rails 10, where the two i-shaped steel rails 10 are parallel to each other, the end of the i-shaped steel rail 10 is fixedly connected to the counterforce frame 4 through a screw 18, the counterforce frame 4 is used to support the i-shaped steel rail 10, the bottom of the i-shaped steel rail 10 is provided with the linear guide rail 9, the linear slider 8 is installed on the linear guide rail 9, the linear slider 8 is slidably connected to the linear guide rail 9, the linear slider 8 can slide left and right along the linear guide rail 9, the lower surface of the linear slider 8 is fixedly connected to a small sliding plate 7, an optical axis 12 penetrates through the small sliding plate 7, the total two optical axes 12 are arranged symmetrically, the optical axis 12 is sleeved with a linear ball bearing 17, the lower end of the linear ball bearing 17 is fixedly connected with the sliding trolley board 7, the optical axis 12 is slidably connected with the sliding trolley board 7 through the linear ball bearing 17, the optical axis 12 can slide up and down, the lower end of the optical axis 12 is fixedly connected with a rubber wheel support 6, the lower end of the rubber wheel support 6 is rotatably connected with a rubber wheel 5, the rubber wheel 5 can rotate freely, when the optical axis 12 slides up and down, the rubber wheel support 6 can be driven to slide up and down, so as to adjust the height of the rubber wheel 5, a test mold bearing plate 1 is arranged below the rubber wheel 5, the test mold bearing plate 1 is used for placing a vehicle test mold 2, the upper surface of the test mold bearing plate 1 is fixedly connected with a test mold fixing baffle plate 19, the upper surface of the test mold bearing plate 1 is detachably provided with a test mold movable baffle plate 20, the test mold handle jackscrew 3 is further arranged on the test mold bearing plate 1, the end of, arrange rut examination mould 2 in examination mould fixed stop 19, between examination mould adjustable stop 20, examination mould handle jackscrew 3 screws, can make examination mould adjustable stop 20 and rut examination mould 2 closely laminate, utilize examination mould fixed stop 19, examination mould adjustable stop 20 presss from both sides tight rut examination mould 2, make rut examination mould 2 remain stable, be convenient for carry out the rut experiment, the last fixed surface of slip little sweep 7 is connected with cylinder 11, cylinder rod 15 is installed to the end that stretches out of cylinder 11, the top fixedly connected with loading crossbeam 13 of optical axis 12, the upper end of cylinder rod 15 is connected with loading crossbeam 13 through pulling force centering subassembly 14, control cylinder 11 work, it is flexible to drive cylinder rod 15, can drive optical axis 12 and slide from top to bottom, thereby drive rubber wheel 5 reciprocates, adjust the pressure of rubber wheel 5 to rut examination mould 2.

Example 2

On the basis of embodiment 1, the lower surface of the sliding trolley board 7 is provided with a rotating shaft 21, the rotating shaft 21 is sleeved with a horizontal dragging pull rod 16, the horizontal dragging pull rod 16 is rotatably connected with the rotating shaft 21, the end part of the horizontal dragging pull rod 16 is connected with a driving part, and the driving part can drive the horizontal dragging pull rod 16 to do reciprocating motion, so that the sliding trolley board 7 is driven to do reciprocating motion, the rubber wheel 5 rolls back and forth on the rutting test die 2, and the rutting test is performed.

With the combination of the embodiment 1 and the embodiment 2, the working principle of the present invention is: the rut test mold 2 is arranged between a test mold fixed baffle plate 19 and a test mold movable baffle plate 20, a test mold handle jackscrew 3 is screwed to enable the test mold movable baffle plate 20 to be tightly attached to the rut test mold 2, the rut test mold 2 is clamped by the test mold fixed baffle plate 19 and the test mold movable baffle plate 20 to keep stable, an air cylinder 11 is controlled to work to drive an air cylinder rod 15 to shorten and drive an optical axis 12 to slide up and down, so that a rubber wheel 5 is driven to move downwards, the connection part of the rubber wheel 5 and the rut test mold 2 is enabled to drive a horizontal dragging rod 16 to do reciprocating motion by a driving piece, so that a small sliding vehicle plate 7 is driven to do reciprocating motion, the rubber wheel 5 rolls back and forth on the rut test mold 2 to conduct rut test, the device can control the pressure of the rubber wheel 5 acting on the rut test mold 2 according to actual requirements, can also realize the automatic rising and falling of the rubber wheel, and is convenient for users to change the rut test mold 2, the operation is simple and convenient.

It needs to explain very much that, test die loading board 1, counter-force frame 4, rubber wheel support 6, linear slider 8, linear guide rail 9 and I-shaped rail 10 are prior art's application in this application, and linear slider, linear guide rail, cylinder, optical axis, pulling force centering subassembly, cylinder pole, horizontal dragging pull rod are the innovation point of this application, and it has effectively solved the inconvenient problem of current rut testing machine pressure adjustment.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An air pressure constant-pressure asphalt pavement rut testing machine comprises a test mold bearing plate (1), a counter-force frame (4), rubber wheel supports (6), linear sliding blocks (8), linear guide rails (9) and I-shaped steel rails (10), and is characterized in that the number of the I-shaped steel rails (10) is two, the end parts of the I-shaped steel rails (10) are fixedly connected with the counter-force frame (4) through screws (18), the linear guide rails (9) are installed at the bottoms of the I-shaped steel rails (10), the linear sliding blocks (8) are installed on the linear guide rails (9), sliding trolley plates (7) are fixedly connected to the lower surfaces of the linear sliding blocks (8), optical shafts (12) penetrate through the sliding trolley plates (7), the rubber wheel supports (6) are fixedly connected to the lower ends of the optical shafts (12), rubber wheels (5) are rotatably connected to the lower ends of the rubber wheel supports (6), the rubber wheel (5) are provided with the test mold, the upper surface fixed connection of slip dolly board (7) has cylinder (11), cylinder rod (15) are installed to the end that stretches out of cylinder (11), the top fixedly connected with loading crossbeam (13) of optical axis (12), the upper end of cylinder rod (15) is connected with loading crossbeam (13) through pulling force centering subassembly (14), the lower surface mounting of slip dolly board (7) has pivot (21), the cover is equipped with horizontal dragging pull rod (16) on pivot (21), horizontal dragging pull rod (16) rotate with pivot (21) and are connected.

2. The machine for testing rutting on asphalt pavement with constant air pressure according to claim 1, wherein the linear slider (8) is slidably connected to the linear guide (9).

3. The machine for testing rutting on asphalt pavement according to claim 1, wherein there are two of the optical axes (12) arranged symmetrically.

4. The asphalt pavement rutting tester with constant air pressure and pressure according to claim 1, wherein the optical axis (12) is sleeved with a linear ball bearing (17), the lower end of the linear ball bearing (17) is fixedly connected with the sliding trolley plate (7), and the optical axis (12) is slidably connected with the sliding trolley plate (7) through the linear ball bearing (17).

5. The air pressure constant pressure asphalt pavement rutting tester as claimed in any one of claims 1 to 4, wherein a test mold fixing baffle (19) is fixedly connected to the upper surface of the test mold bearing plate (1), a test mold moving baffle (20) is detachably mounted on the upper surface of the test mold bearing plate (1), a test mold handle jackscrew (3) is further mounted on the test mold bearing plate (1), and the end of the test mold handle jackscrew (3) abuts against the test mold moving baffle (20).