CN112362507A - Novel roadbed modulus automatic testing device - Google Patents
Novel roadbed modulus automatic testing device Download PDFInfo
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- CN112362507A CN112362507A CN202011262306.6A CN202011262306A CN112362507A CN 112362507 A CN112362507 A CN 112362507A CN 202011262306 A CN202011262306 A CN 202011262306A CN 112362507 A CN112362507 A CN 112362507A
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
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- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
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Abstract
The invention provides a novel roadbed modulus automatic testing device which comprises a collision device, wherein the collision device comprises an installation frame, a lifting mechanism is arranged on the installation frame, a collision ball is arranged on the lifting mechanism, a moving mechanism arranged on the installation frame is arranged below the lifting mechanism, and the lifting mechanism drives the collision ball to move to a test point under the action of the moving mechanism. The novel automatic roadbed modulus testing device has the advantages that the automatic roadbed modulus testing can be completed, the structure of the automatic roadbed modulus testing device in the prior art is optimized, and the novel automatic roadbed modulus testing device is firm in structure, good in durability, long in service life, low in manufacturing cost, convenient to use and more practical.
Description
Technical Field
The invention belongs to the technical field of roadbed modulus testing, and particularly relates to a novel roadbed modulus automatic testing device.
Background
Roadbed modulus detection is an important process of road construction quality detection, and a method for testing soil roadbed modulus by a ball falling instrument is recorded in a highway roadbed pavement field test rule. Specifically, each measuring area at least comprises seven measuring points, wherein six measuring points are uniformly arranged at intervals on a circle with the other measuring point as the center of circle, and the ball falling instrument is sequentially placed in each measuring point area for measurement. The operation of moving the falling ball instrument for multiple times is inconvenient in the using process, meanwhile, the accuracy of the falling ball height of each measuring point is difficult to guarantee after the falling ball instrument is manually moved for multiple times, the testing efficiency is low, and the potential safety hazard of smashing the feet of an operator is caused by manual multiple operations. In order to solve the problems of complex operation and low automation degree of the conventional roadbed modulus testing device, the invention patent with application number of 2020105709927 discloses an roadbed modulus automatic testing device and a roadbed modulus automatic testing method. When the device is used, the stay wire connected with the steel ball bypasses the lead wire wheel, passes through the lead wire mechanism and then is wound on the reel, and then the test can be carried out. In addition, the automatic roadbed modulus testing device needs an electromagnetic clutch to work in a matching mode, and is high in cost and high in energy consumption.
Disclosure of Invention
The invention aims to provide a novel automatic roadbed modulus testing device, which is used for solving the problems of short service life, high cost and high energy consumption of the conventional automatic roadbed modulus testing device in the prior art. In order to achieve the purpose, the invention provides a novel roadbed modulus automatic testing device which comprises a collision device and a signal acquisition device, wherein the collision device comprises a mounting frame, a lifting mechanism is arranged on the mounting frame, a collision ball is arranged on the lifting mechanism, a moving mechanism arranged on the mounting frame is arranged below the lifting mechanism, and the lifting mechanism drives the collision ball to move to a test point under the action of the moving mechanism;
the lifting mechanism comprises a tray and a support fixed on the tray, the tray is slidably mounted on the moving mechanism, a driving chain wheel and a driven chain wheel are mounted on the support and vertically arranged, the driving chain wheel and the driven chain wheel are connected through a chain transmission matched with the driving chain wheel and the driven chain wheel, two sides of a chain are respectively fixed with a lifting pin shaft which is oppositely arranged, and one end of a lifting pin shaft is connected with a lifting rod fixedly connected with a collision ball in a hanging mode.
Furthermore, one end of the lifting rod, which is far away from the collision ball, is fixedly connected with a fixed rod, two ends of the fixed rod are respectively fixed with a hanging pin shaft, and an arc-shaped hanging groove is formed in the hanging surface of the hanging pin shaft and the lifting pin shaft.
Furthermore, a buffer block is fixed on the tray corresponding to the fixing rod.
Further, the moving mechanism comprises a longitudinal moving assembly and a transverse moving assembly, wherein the longitudinal moving assembly comprises two longitudinal guide rods arranged in parallel and a longitudinal screw rod arranged in the middle of the longitudinal guide rods, the two longitudinal guide rods are respectively fixed on a fixing frame, the two longitudinal guide rods are respectively in sliding connection with a first sliding block fixed on the bottom surface of the tray, the longitudinal screw rod is rotatably arranged on the fixing frame, the longitudinal screw rod and a first screw sleeve fixed on the bottom surface of the tray form a screw rod pair, and the fixing frame is in sliding connection with the transverse moving assembly.
Furthermore, the two longitudinal guide rods are fixed on the fixed frame through longitudinal guide rails correspondingly arranged at the bottoms of the longitudinal guide rods, and the longitudinal guide rails and the first sliding block form a sliding pair.
Furthermore, the transverse moving assembly comprises two transverse guide rods arranged in parallel and two transverse screws located between the two transverse guide rods, the two transverse guide rods and the two transverse screws are respectively located at two ends of the fixing frame, the two transverse screws are respectively in threaded fit connection with second threaded sleeves fixed at two ends of the bottom surface of the fixing frame, and the two transverse guide rods are respectively in sliding connection with second sliding blocks fixed at two ends of the bottom surface of the fixing frame.
Among the above-mentioned technical scheme, novel automatic testing of road bed modulus device still includes the trailer pole, trailer pole one end articulates on the mounting bracket, and the trailer hook is installed to the other end.
Compared with the prior art, the invention has the following technical effects:
1. according to the invention, the collision ball is hung on the lifting mechanism through the lifting rod, so that the collision ball is convenient to connect with the lifting mechanism, the complex and fussy threading step in the prior art is avoided, and the roadbed modulus is convenient to measure;
2. the invention realizes the adjustment of the coordinates of the collision ball through the moving mechanism, compared with a lead mechanism in the prior art, the invention has the advantages of simple structure, convenient manufacture and easy control besides completing the conversion of coordinate points in the experiment, and compared with the lead mechanism in the prior art, the invention has strong durability and long service life, thereby saving the use cost;
3. according to the invention, the collision ball is lifted and dropped through the lifting mechanism, the lifting mechanism comprises the motor, the driving chain wheel, the driven chain wheel and the chain, the structure is firm, the work is stable, the electromagnetic clutch in the prior art is omitted, and the cost is saved;
to sum up, the novel automatic roadbed modulus testing device can complete automatic roadbed modulus testing, optimizes the structure of the automatic roadbed modulus testing device in the prior art, and is firm in structure, good in durability, long in service life, low in manufacturing cost, convenient to use and more practical.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the figure:
fig. 1 is a schematic perspective view of a novel roadbed modulus automatic testing device according to a preferred embodiment of the invention;
FIG. 2 is a schematic enlarged view of A in FIG. 1;
fig. 3 is a schematic perspective view of another view of the novel roadbed modulus automatic testing device in fig. 1.
The reference numbers in the figures denote the following meanings: 100. a mounting frame 110, an upper frame 120, a lower frame 130 and a vertical beam; 200. a front wheel; 300. A rear wheel; 400. a collision ball; 500. the device comprises a moving mechanism 510, a longitudinal moving component 511, a longitudinal guide rod 512, a longitudinal four-cylinder 513, a bearing seat 514, a fixing frame 515, a longitudinal guide rail 520, a transverse moving component 521, a transverse guide rod 522, a transverse lead screw 523 and a motor; 600. the lifting mechanism comprises a lifting mechanism 610, a tray 620, a driving sprocket 630, a chain 640, a driven sprocket 650, a support 660, a hanging pin shaft, a fixing rod 670, a fixing rod 680, a lifting rod 690, a main motor 601, a lifting pin shaft 602 and a buffer block; 001. a tow bar; 700. a tow hook 800, a first slide block; 900. and a second slider.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The novel roadbed modulus automatic testing device according to a preferred embodiment of the invention is described in detail below with reference to fig. 1, 2 and 3, and comprises a collision device and a signal acquisition device, wherein the collision device comprises an installation frame 100, a lifting mechanism 600 is arranged on the installation frame 100, a collision ball 400 is arranged on the lifting mechanism 600, a moving mechanism 500 arranged on the installation frame 100 is arranged below the lifting mechanism 600, and under the action of the moving mechanism 500, the lifting mechanism 600 drives the collision ball 400 to move to a test point. The mounting frame 100 of this embodiment is a frame structure, the upper frame 110 is formed by welding the front and rear upper cross beams and the left and right upper longitudinal beams, the lower frame 120 is formed by welding the front and rear lower cross beams and the left and right lower longitudinal beams, and the upper frame 110 and the lower frame 120 are connected by the vertical beam 130 vertically arranged to form the mounting frame 100 of the rectangular frame structure. In order to facilitate moving the automatic roadbed modulus testing device, four traveling wheels are mounted at the bottom of the mounting frame 100, wherein the front wheels 200 are universal wheels with a braking function, and the rear wheels 300 are directional wheels.
The lifting mechanism of this embodiment adopts the following structure, the lifting mechanism 600 includes a tray 610 and a bracket 650 fixed on the tray 610, the tray 610 is slidably mounted on the moving mechanism 500, a driving sprocket 620 and a driven sprocket 640 which are vertically arranged are mounted on the bracket 650, the driving sprocket 620 and the driven sprocket 640 are in transmission connection through a chain 630 which is matched with the driving sprocket 620 and the driven sprocket 640, a rotating shaft of the driving sprocket 620 is connected with an output shaft of a main motor 690, lifting pins 601 which are oppositely arranged are respectively fixed on two sides of the chain 630, and a lifting rod 680 which is fixedly connected with the collision ball 400 at one end is hung on the lifting pin 601. In the preferred embodiment, the drive sprocket 620 and the driven sprocket 640 are 12 "sprockets, the chain 630 is a 20A chain, and the lift pin 601 is attached to the link plate of the same link. The lifting rod 680 is a rigid structural member, the cross section of the lifting rod 680 is rectangular, and the lifting rod 680 is a rigid lifting rod with a rectangular cross section, so that the collision ball 400 is prevented from rotating after falling, and the lifting pin 601 cannot lift the collision ball 400, thereby ensuring that the test device can work smoothly, and improving the reliability and stability of the test device. In order to prevent the collision ball 400 from dragging the ground during the movement of the lifting mechanism 600 driven by the moving mechanism 500, the collision ball 400 is kept at a certain distance from the tested road surface by the rotation of the main motor 690, and the main motor 690 brakes at this time to prevent the collision ball 400 from falling, so that the main motor 690 of the preferred embodiment employs a stepping motor having a braking function, such as a braking motor.
The lifting rod 680 of this embodiment is hung on the lifting pin 601 through the following structure, specifically: a fixing rod 670 is fixedly connected to one end of the lifting rod 680 far away from the collision ball 400, a hanging pin 660 is respectively fixed to two ends of the fixing rod 670, an arc-shaped hanging groove (not shown) is formed in a hanging surface of the hanging pin 660 and the lifting pin 601, and the length of the hanging pin 660 extending out of the lifting pin 601 is smaller than the radius of the driving sprocket 620 and the driven sprocket 640, so that the hanging pin 660 is separated from the lifting pin 601 along with the rotation of the chain 630, the collision ball 400 falls down, and free falling motion is achieved.
Since the lifting rod 680 of the present embodiment is a rigid structure, generally, after the collision ball 400 falls, the fixing rod 670 will not contact the top surface of the tray 610, in order to prevent the falling displacement of the collision ball 400 when falling is greater than the length of the fixing rod 670, so that the fixing rod 670 contacts the tray 610, as a preferred embodiment of the present invention, a buffer block 602 is fixed on the top surface of the tray 610 corresponding to the top end of the fixing rod 670, the buffer block 602 has elasticity, and the buffer block 602 is designed to buffer the acceleration force of the falling of the fixing rod 670, so as to prevent the fixing rod 670 from directly colliding with the tray 610, thereby preventing the fixing rod 670 from damaging the tray 610 and the moving assembly 500, and further improving the durability of the testing apparatus of the present invention.
The moving mechanism 500 of the present embodiment includes a longitudinal moving assembly 510 and a transverse moving assembly 520, wherein the longitudinal moving assembly 510 includes two longitudinal guide rods 511 disposed in parallel and a longitudinal screw rod 512 disposed between the two longitudinal guide rods 511, the two longitudinal guide rods 511 are respectively fixed on a fixing frame 514, the two longitudinal guide rods 512 are respectively slidably connected with a first slider 800 fixed on the bottom surface of the tray 610, the longitudinal screw rod 512 is rotatably mounted on the fixing frame 514, and the longitudinal screw rod 512 and a first screw sleeve (not shown) fixed on the bottom surface of the tray 610 form a screw pair, the longitudinal screw rod 512 is rotatably mounted on the fixing frame 514 through a bearing, the bearing is mounted on a bearing seat 513 fixed on the fixing frame 514, and the fixing frame 514 is slidably connected with the transverse moving assembly 520.
As shown in fig. 2, the two longitudinal guide rods 511 are fixed on the fixing frame 514 through the longitudinal guide rails 515 correspondingly arranged at the respective bottoms, the longitudinal guide rails 514 and the first sliding block form a sliding pair, and the longitudinal guide rods 511 and the longitudinal guide rails 515 are connected in a sliding manner to form a double guide, so that the stability of the longitudinal movement of the lifting mechanism 600 is ensured, and the accuracy of the displacement is ensured.
The transverse moving assembly 520 includes two parallel transverse guide rods 521 and two transverse screws 522 located between the two transverse guide rods 521, the two transverse guide rods 521 and the two transverse screws 522 are respectively located at two ends of the fixing frame 514, the two transverse screws 521 are respectively in threaded fit connection with second threaded sleeves fixed at two ends of the bottom surface of the fixing frame 514, and the two transverse guide rods 521 are respectively in sliding connection with second sliding blocks 900 fixed at two ends of the bottom surface of the fixing frame 514. Specifically, the two lateral guide rods 521 are fixed at the upper end of the mounting block 100 and are respectively located on the front cross beam and the rear cross beam of the upper frame 110 of the mounting block 100, and the two lateral lead screws 522 are rotatably mounted on the left and right longitudinal beams of the upper frame 110 through bearings in the mounting bearing seats. The transverse moving assembly provided by the invention consists of the transverse guide rod and the lead screw, and is simple in structure, convenient to manufacture and convenient to control.
In this embodiment, the longitudinal screw 512 and one end of each of the two transverse screws 522 are provided with a driving member for driving them to rotate, the driving member may be a handle or a motor, in this embodiment, a stepping motor is preferred, and as shown in fig. 1, one end of one of the two transverse screws 522 is connected to an output shaft of the motor 523.
Similarly, the cross guide rails are arranged below the two cross guide rods 521, and the cross guide rails and the second slider 900, and the cross guide rods 521 and the second slider 900 form sliding pairs to form double guidance, so that the displacement accuracy is ensured.
In order to facilitate the movement of the novel roadbed modulus automatic testing device, the front end of the mounting frame is provided with a trailer rod 001, one end of the trailer rod 001 is hinged on the lower frame 120 of the mounting frame 100, and the other end of the trailer rod 001 is provided with a trailer hook 700.
When the novel roadbed modulus automatic testing device is used for roadbed modulus testing, the testing device is moved to a testing position through the trailer rod 001, the lifting mechanism 600 is driven to move to a coordinate point through the moving mechanism 500 for testing, the main motor 690 is started before the moving mechanism 500 is started, the main motor 690 is stopped to enable the main motor 690 to drive the collision ball 400 to be away from a test road surface for a certain height, the collision ball 400 is stopped to keep the height through the main motor 690, the moving mechanism 500 is started again, the moving mechanism 500 is closed after the coordinate point is reached, the main motor 690 is started again, the chain 630 rotates along with the rotation of the chain, the hanging pin 660 is separated from the lifting pin 601 to enable the collision ball 400 to fall down, free-falling body motion is realized, the lifting pin 601 is contacted with the hanging pin 660 again along with the rotation of the main motor 690, the main motor 690 is stopped after the collision ball is brought to a certain height, the moving mechanism 500 is started, thus, each coordinate point is tested separately.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A novel roadbed modulus automatic testing device comprises a collision device, wherein the collision device comprises a mounting frame, and the novel roadbed modulus automatic testing device is characterized in that a lifting mechanism is arranged on the mounting frame, a collision ball is arranged on the lifting mechanism, a moving mechanism arranged on the mounting frame is arranged below the lifting mechanism, and the lifting mechanism drives the collision ball to move to a testing point under the action of the moving mechanism;
the lifting mechanism comprises a tray and a support fixed on the tray, the tray is slidably mounted on the moving mechanism, a driving chain wheel and a driven chain wheel are mounted on the support and vertically arranged, the driving chain wheel and the driven chain wheel are connected through a chain transmission matched with the driving chain wheel and the driven chain wheel, two sides of a chain are respectively fixed with a lifting pin shaft which is oppositely arranged, and one end of a lifting pin shaft is connected with a lifting rod fixedly connected with a collision ball in a hanging mode.
2. The device for automatically testing the modulus of the roadbed according to claim 1, wherein a fixing rod is fixedly connected to one end of the lifting rod, which is far away from the collision ball, hanging pins are respectively fixed to two ends of the fixing rod, and arc-shaped hanging grooves are formed in hanging surfaces of the hanging pins and the lifting pins.
3. The novel automatic roadbed modulus testing device as claimed in claim 2, wherein a buffer block is fixed on the tray corresponding to the fixing rod.
4. The device for automatically testing the roadbed modulus as claimed in claim 1, wherein the moving mechanism comprises a longitudinal moving component and a transverse moving component, wherein the longitudinal moving component comprises two longitudinal guide rods arranged in parallel and a longitudinal screw rod arranged between the two longitudinal guide rods, the two longitudinal guide rods are respectively fixed on a fixing frame, the two longitudinal guide rods are respectively connected with a first sliding block fixed on the bottom surface of the tray in a sliding manner, the longitudinal screw rod is rotatably installed on the fixing frame, and forms a screw rod pair with a first screw sleeve fixed on the bottom surface of the tray, and the fixing frame is connected with the transverse moving component in a sliding manner.
5. The novel roadbed modulus automatic test device is characterized in that two longitudinal guide rods are fixed on the fixed frame through longitudinal guide rails correspondingly arranged at the bottoms of the longitudinal guide rods, and the longitudinal guide rails and the first sliding block form sliding pairs.
6. The device for automatically testing the modulus of the roadbed according to claim 4, wherein the transverse moving assembly comprises two transverse guide rods arranged in parallel and two transverse screws arranged between the two transverse guide rods, the two transverse guide rods and the two transverse screws are respectively arranged at two ends of the fixed frame, the two transverse screws are respectively in threaded fit connection with second threaded sleeves fixed at two ends of the bottom surface of the fixed frame, and the two transverse guide rods are respectively in sliding connection with second sliding blocks fixed at two ends of the bottom surface of the fixed frame.
7. The novel roadbed modulus automatic testing device is characterized by further comprising a trailer rod, wherein one end of the trailer rod is hinged to the mounting frame, and the other end of the trailer rod is provided with a trailer hook.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011262306.6A CN112362507A (en) | 2020-11-12 | 2020-11-12 | Novel roadbed modulus automatic testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011262306.6A CN112362507A (en) | 2020-11-12 | 2020-11-12 | Novel roadbed modulus automatic testing device |
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| CN112362507A true CN112362507A (en) | 2021-02-12 |
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| CN202011262306.6A Pending CN112362507A (en) | 2020-11-12 | 2020-11-12 | Novel roadbed modulus automatic testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373894A (en) * | 2021-07-07 | 2021-09-10 | 中信国安建工集团有限公司 | Soft soil roadbed engineering characteristic deformation remote comprehensive observation device and operation method |
| CN113481957A (en) * | 2021-06-07 | 2021-10-08 | 中铁十九局集团有限公司 | Drilling and digging machine for detecting roadbed compactness |
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2020
- 2020-11-12 CN CN202011262306.6A patent/CN112362507A/en active Pending
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| CN105544499A (en) * | 2015-12-29 | 2016-05-04 | 河南四海建材设备有限公司 | Small tamping machine |
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Application publication date: 20210212 |