CN2116900U

CN2116900U - Roadbed and pavement strength detector

Info

Publication number: CN2116900U
Application number: CN 92212586
Authority: CN
Inventors: 陈润余; 郑昌信; 陈子久
Original assignee: CHANGSHA BUILDING MACH
Current assignee: CHANGSHA BUILDING MACH
Priority date: 1992-04-08
Filing date: 1992-04-08
Publication date: 1992-09-23

Abstract

Roadbed and pavement strength detector relates to the detector, is used for the highway roadbed, the continuous detection of road surface strength, the utility model discloses lean on other vehicle as traction power, its wheel and the inter-ground adhesive force through the epaxial little band pulley of axletree with wheel rigid connection, drive the cam, cam drive impact hammer pole makes impact hammer periodic impact roadbed or road surface, the real-time collection impact signal of the sensor in the impact hammer carries out data processing, then prints out each measurement station roadbed, road surface strength numerical value and relative measurement station position, realizes the continuous dynamic detection to highway roadbed, road surface strength. The utility model discloses it is all very favourable to newly-repaiied highway subgrade intensity acceptance and have had highway road surface intensity periodic detection and technical data file.

Description

Roadbed and pavement intensity testing instrument

The subgrade and pavement intensity detector relates to detector, is used for highway subgrade, the continuous detecting of pavement strength.

Existing impact type subgrade and pavement intensity detector all is hands, though it can detect roadbed, pavement strength, efficient is low, and it all is heavy manual labors that operation is moved, and this can not satisfy newly construct a road subgrade strength and the large scale test requirement of detection regularly of existing highway pavement intensity.

The purpose of this utility model provides a kind of highway base pavement strength detector.It is to adopt the ram hammer method to print the digital test machine of roadbed, pavement strength and relevant position thereof by the continuous Jian Ce And of Lian.

The utility model is achieved in that

Small pulley (13), wheel (10) and axletree (9) rigid attachment.Big belt wheel (6) all is sleeved on the axle (15) of bearing seat (16) with cam (5).One end of driving-belt (7) is enclosed within on the small pulley (13), and the other end is enclosed within on the big belt wheel (6).Hammer stem (4) is hinged on the bearing (8), and hammer stem (4) is fixedly connected with ram hammer (11), and sensor (12) is fixed in the ram hammer (11).Slotted line (3) connects with data processing printing equipment (2) by passing through hammer stem (4) endoporus in the ram hammer (11).Bearing seat (16), bearing (8) are fixedly connected on vehicle frame (17).

Accompanying drawing one is a structural drawing of the present utility model.

Existing accompanying drawings is as follows:

When the utility model placed on the ground, ram hammer (11) promptly placed on the ground.Because hitch frame (1) is connected with the tractor in the place ahead, so, when walking, wheel (10) is except being used as walking function, because wheel (10) is a rigid attachment with axletree (9), thereby the adhesion between wheel (10) and the ground can be converted to the driving force to the small pulley (13) on the axletree (9).The driving-belt (7) that connects small pulley (13) and big belt wheel (6) arrives big belt wheel (6) in order to the transmission of power with small pulley (13).Be contained in cam (5) on the same axle with big belt wheel (6), in order to drive hoisting of ram hammer (11) by hammer stem (4) and to fall, sensor (12) is in order to detect ram hammer (11) to the ground impact signal, and And prints demonstration by be sent to data processing printing equipment (2) by slotted line (3).

The course of work of the present utility model is when detector places on the ground, tractor is by hitch frame (1) traction walking, adhesion between wheel (10) and the ground drives the small pulley (13) on the axletree (9), small pulley (13) drives big belt wheel (6) by driving-belt (7), the cam (5) that big belt wheel (6) drives on the same axle rotates, cam (5) drives hammer stem (4), ram hammer (11) is lifted, when hammer stem (4) was driven into maximum radius position on the cam (5) by cam (5) after, ground was impacted in ram hammer (11) free-falling.At this moment, sensor (12) in the ram hammer (11) is with the impact signal that collects, be transported to data processing printing equipment (2) by slotted line (3), data processing printing equipment (2) prints corresponding roadbed immediately, pavement strength value and corresponding point position thereof, finish one-shot measurement, measurement like this can be carried out consecutive periods and carry out.

The detection regularly of highway pavement intensity is checked and accepted and had to the subgrade strength that newly constructs a road to the utility model and technical data is filed all very favourable.

Claims

1, highway subgrade pavement strength detector comprises hitch frame [1], wheel [10] bearing [8], and bearing seat [16], driving-belt [7], cam [5], ram hammer [11] is characterized in that:

1. small pulley [13], wheel [10] and axletree [9] rigid attachment;

2. big belt wheel [6] and cam [5] all are sleeved on the axle [15] of bearing seat [16];

3. an end of driving-belt [7] is enclosed within on the small pulley [13], and the other end is enclosed within on the big belt wheel [6];

4. hammer stem [4] is hinged on the bearing [8], and hammer stem [4] is fixedly connected with ram hammer [11], and sensor [12] is fixed in the ram hammer [11];

5. slotted line [3] is passed with data processing printing equipment [2] by process hammer stem [4] endoporus in the ram hammer [11] and connects.