CN214200878U - Pavement material compaction instrument - Google Patents

Abstract

The utility model belongs to the field of test instruments and discloses a pavement material compaction instrument, which comprises a bracket and a weighing device; the top end of the bracket is circumferentially and sequentially provided with a material weighing and discharging unit, an inserting and tamping unit, a compacting unit and a material conveying unit, and the bottom end of the bracket is provided with a rotating unit; the rotating unit comprises a rotating shaft, four rotating force arms are arranged on the side surface of the rotating shaft, mounting holes are formed in each rotating force arm, bases are arranged in the mounting holes in a clearance fit mode, and test tubes are arranged on the bases; each test cylinder is respectively positioned below the material weighing and discharging unit, the inserting and tamping unit, the compacting unit and the material conveying unit; the weighing device is positioned below the base connected with the test tube below the material conveying unit. Four test tubes are driven by the rotating unit to complete material conveying, material loading, inserting tamping, tamping and other operations under the material weighing and placing unit, the inserting tamping unit, the material conveying unit and the material conveying unit in sequence, so that the manual input is reduced, the working strength of testers is greatly reduced, and the automation degree and efficiency of the tamping test are greatly improved.

Description

Pavement material compaction instrument

Technical Field

The utility model belongs to the test instrument field relates to a road surface material hits real appearance.

Background

In the indoor test of highway engineering, the best water content and the maximum compactness of the material are determined by adopting a compaction tester, and the accuracy of the indoor compaction test result can influence the design, construction and detection of a road base layer and a roadbed to a great extent. The conventional compaction device commonly used at present has the following problems: the procedures of mixing, feeding, inserting and tamping, weighing and the like of the test are finished manually, the physical consumption of testers is large, manual operation can slow down the progress of the test, and the working efficiency is low; meanwhile, in the weighing process, the reading is inaccurate, and the sample may be scattered in the process of feeding materials into the test cylinder by using a tool, so that the quality loss is caused, and the final test result is influenced; in addition, in the process of the layered compaction test, a tester can perform the next feeding operation only after the last added test material compaction is finished, the delay time is long in the midway, and the continuity of the test cannot be well guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art, the shortcoming of current inefficiency of hitting real appearance provides a road surface material hits real appearance.

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

a pavement material compaction instrument comprises a bracket and a weighing device;

the top end of the bracket is circumferentially and sequentially provided with a material weighing and discharging unit, an inserting and tamping unit, a compacting unit and a material conveying unit, and the bottom end of the bracket is provided with a rotating unit;

the rotating unit comprises a rotating shaft, four rotating force arms are arranged on the side surface of the rotating shaft, mounting holes are formed in each rotating force arm, bases are arranged in the mounting holes in a clearance fit mode, and test tubes are arranged on the bases; each test cylinder is respectively positioned below the material weighing and discharging unit, the inserting and tamping unit, the compacting unit and the material conveying unit; the weighing device is positioned below the base connected with the test tube below the material conveying unit.

The utility model discloses further improvement lies in:

the material weighing and discharging unit comprises a charging bin and a weighing and discharging bin; the side wall of the charging bin is connected with the bracket, and the outlet of the charging bin is connected with the inlet of the weighing and discharging bin through a discharging valve; a cross rotating shaft is rotatably arranged in the weighing and discharging bin, and the end surface of the cross rotating shaft is tightly attached to the inner wall of the weighing and discharging bin; a first limiting block, a second limiting block and a control button are arranged on the inner wall of the weighing and discharging bin, a mass sensor is arranged on the first limiting block, the first limiting block and the second limiting block are respectively positioned below two ends of a horizontal shaft of the cross-shaped rotating shaft, and when the mass sensor reaches a preset numerical value, the first limiting block retracts; otherwise, the first limiting block is popped up; the control button is positioned on one side of the vertical shaft of the cross rotating shaft, which is close to the second limiting block, and when the control button is pressed down, the first limiting block is popped up; the discharge hole of the weighing and discharging bin is positioned above the test tube below the weighing and discharging unit.

And a spiral stirrer is arranged in the charging bin.

The device also comprises an inserting and tamping device, a vibrating rotating rod and an inserting and tamping rod; the inserting and smashing device comprises a second lifting mechanism, the bottom of the second lifting mechanism is connected with a vibrating rotating rod, the vibrating rotating rod is connected with the inserting and smashing rod in a staggered mode, and the inserting and smashing rod is located above the test tube.

The utility model discloses a vibrating tamper, including vibrations rotary rod, first connecting block, second connecting block, two springs, the rotatory stick top of vibrations is connected to the one end that vibrations rotary rod and the stick of smashing are connected and is set up first connecting block and second connecting block, and the equal slip cap of first connecting block and second connecting block is established two springs on inserting the stick of smashing, the one end of a spring, and first connecting block is hugged closely to the other end, and another spring is located between first connecting block and the second connecting block.

The compaction unit comprises a compaction device and a compaction hammer; the compaction device comprises a first lifting mechanism, the free end of the first lifting mechanism is connected with a compaction hammer, and the compaction hammer is positioned above the test tube below the compaction unit.

The compaction unit further comprises a rotating base, and the rotating base is located below the base connected with the test tube below the compaction unit.

The material conveying unit comprises a lifting device, a material conveying bin and a turnover shaft; the lifting device comprises a third lifting mechanism, the free end of the third lifting mechanism is connected with the material conveying bin, and the turnover shaft is arranged at the top of the third lifting mechanism; when the material transporting bin is lifted to the turnover shaft through the third lifting mechanism, the turnover shaft turns over the material transporting bin, and a test material in the material transporting bin can be poured into the material loading bin.

The bottom of the material transporting bin is provided with a slope.

And a test tube baffle is arranged at the top of the test tube.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses pavement material hits real appearance, set gradually title material and blowing unit in support top week through the setting, insert and smash the unit, hit real unit and fortune material unit, the support bottom sets up the rotary unit, set up four examination section of thick bamboo on the rotary unit, rotation through the rotary unit, drive four examination section of thick bamboos in proper order title material and blowing unit, insert and smash the unit, hit and accomplish fortune material under real unit and the fortune material unit, feed, insert and smash and hit operation such as reality, reduce artifical input, the degree of automation has been improved, the working strength of testing personnel has been reduced by a wide margin, reduce the influence of human operation factor to the testing process, help improving the accuracy of testing process, make simultaneously hit real experiment can go on in succession, the degree of automation and the efficiency of hitting real experiment have been improved greatly. Meanwhile, a weighing device is arranged below the base connected with the test tube below the material conveying unit to finish the weighing operation,

furthermore, a discharge port is formed in the bottom of the charging bin, a discharge valve is arranged at the bottom of the charging bin, and materials entering the weighing and discharging bin can be controlled; weigh the storage bin and separate into four regions through the cross pivot, the upper right region title material stock, the lower right region blowing, through the effect of wherein different stoppers, can realize full-automatic title material blowing, saved the manpower greatly, improved efficiency.

Further, the spiral stirrer is arranged inside the charging bin, so that automatic stirring can be realized, the labor intensity of testing personnel is reduced, and the stirring uniformity is improved.

Further, insert the tamper and go up the cover and establish two springs, the rotatory stick top of vibrations is connected to the one end of a spring, and first connecting block is hugged closely to the other end, and another spring is located between first connecting block and the second connecting block, and two springs play the effect of borrowing power to unload at whole the in-process of inserting to smash for it reaches better effect to insert to smash.

Furthermore, hit real unit still includes rotating base, and rotating base is located and hits the below of the base that real unit below examination section of thick bamboo is connected, hits real in-process, drives examination section of thick bamboo through rotating base and rotates, brings better hitting real effect.

Furthermore, the bottom of the material conveying bin is provided with a slope, so that the space of the material conveying bin is increased, and the particle materials can be prevented from rolling down.

Furthermore, the top of the test tube is provided with a test tube baffle, so that the materials can be prevented from spilling out of the test tube in the compaction process, and the test precision is improved.

Drawings

FIG. 1 is a front view of the pavement material compaction apparatus of the present invention;

FIG. 2 is a side view of the pavement material compaction apparatus of the present invention;

FIG. 3 is a top view of the pavement material compaction apparatus of the present invention;

FIG. 4 is a schematic plane view of the rotation axis and the rotation arm of force of the present invention

Fig. 5 is a schematic structural view of the rotating shaft and the rotating force arm of the present invention;

FIG. 6 is an exploded view of the test tube assembly of the present invention;

FIG. 7 is a schematic structural view of a loading bin and a weighing and discharging bin of the present invention;

fig. 8 is a schematic structural view of the charging bin of the present invention;

fig. 9 is a top view of the loading bin of the present invention;

fig. 10 is a schematic structural view of the material conveying device of the present invention;

fig. 11 is a side view of the material transporting device of the present invention;

fig. 12 is a schematic structural view of the rotation arm of the present invention descending to the lowest point.

Wherein; 1-weighing and discharging unit; 2-a tamping unit; 3-compaction unit; 4-a material conveying unit; 5-a charging bin; 6-a spiral stirrer; 7-weighing a discharge bin; 8-a cross rotating shaft; 9-a second limiting block; 10-a control button; 11-a discharge hole; 12-a first stopper; 13-a discharge valve; 14-a tamping device; 15-vibrating the rotating rod; 16-a spring; 17-inserting a tamping rod; 18-compaction device; 19-compaction hammer; 20-a lifting device; 21-a material transporting bin; 22-a turning shaft; 23-test cylinder; 24-test cartridge baffle; 25-a rotation unit; 26-a rotating shaft; 27-rotating force arm; 28-a base; 29-rotating the base; 30-weighing device.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 to 9, the utility model provides a pavement material hits real appearance, including the support, the support top is placed title material and blowing unit 1, is inserted and smashes unit 2, is hit real unit 3 and fortune material unit 4 according to anticlockwise order, and the support bottom sets up rotary unit 25.

The material weighing and discharging unit 1 comprises a charging bin 5 and a weighing and discharging bin 7, the charging bin 5 is in an inverted prism shape, the top and the bottom of the charging bin are both rectangular, the charging bin 5 is positioned at the top of a support, a charging hole is formed in the top of the charging bin 5, a spiral stirrer 6 and a discharging valve 13 are arranged at the bottom of the charging bin 5, and the discharging valve 13 is arranged at a position close to the discharging hole of the spiral stirrer 6; the weighing and discharging bin 7 is positioned below the charging bin 5, the top of the weighing and discharging bin 7 is connected with a discharging valve 13, the discharging valve 13 is a material stop valve or a plug board valve, the weighing and discharging bin 7 is in a cylindrical shape, and the weighing and discharging bin 7 comprises a cross rotating shaft 8, a second limiting block 9, a control button 10, a discharging port 11, a mass sensor and a first limiting block 12; cross pivot 8 is placed and is being weighed in putting feed bin 7 and can rotate around the center pin of a cylinder section of thick bamboo, the section of thick bamboo wall of weighing and putting feed bin 7 is hugged closely to the edge of cross pivot 8, place mass sensor and first stopper 12 weighing the rightmost end of putting feed bin 7, mass sensor and first stopper 12 are placed at the downside that cross pivot 8 is in horizontal position, place second stopper 9 weighing the leftmost end of putting feed bin 7, second stopper 9 is placed and is in the downside of horizontal position at cross pivot 8, place control button 10 weighing the bottom of putting feed bin 7, control button 10 places and weighs the left half side of putting feed bin 7 and skew vertical axle ten degrees, it is equipped with discharge gate 11 to weigh and put feed bin 7 bottom.

Referring to fig. 1 again, the compaction unit 3 includes a compaction device 18, a compaction hammer 19 and a rotating base 29, the compaction device 18 includes a first lifting mechanism, the free end of the first lifting mechanism is connected with the compaction hammer 19, and the moving direction of the first lifting mechanism is vertical; the rotary base 29 is disk-shaped, and the rotary base 29 is connected with a power output part of a rotation driving mechanism.

Referring to fig. 2 again, insert and smash unit 2 including inserting smash device 14, vibrations rotating rod 15, spring 16 and insert the tamp 17, insert smash device 14 and include second elevating system, vibrations rotating rod 15 is connected to second elevating system bottom, vibrations rotating rod 15 with insert smash excellent 17 dislocation connection, be equipped with two sections springs 16 on inserting smash excellent 17, establish respectively between two junctions and between upper portion junction and the top of inserting smash excellent 17, spring 16 plays the effect of borrowing power unloading at whole inserting smash in-process for insert and smash and reach better effect.

The material transporting unit 4 comprises a lifting device 20, a material transporting bin 21 and a turnover shaft 22, the lifting device 20 comprises a third lifting mechanism, the lifting device 20 is connected with a power output part of a lifting driving mechanism, the lifting device 20 is connected with the material transporting bin 21, the turnover shaft 22 is arranged at the top of the lifting device 20, and when the lifting device 20 rises to the top, the lifting device can turn over to 90 degrees along with the turnover shaft 22 so as to pour the contained sample materials into the material loading bin 5.

The weighing device 30 is rectangular, and the weighing device 30 is connected with a data output end.

Referring to fig. 10 and 11, the material transporting bin 21 is prism-shaped, one side of the material transporting bin close to the lifting device 20 is open, the other three sides of the material transporting bin are provided with baffle plates, and the bottom of the material transporting bin 21 is provided with a certain gradient, so that the space of the material transporting bin 21 is increased, and the rolling of the granular materials can be prevented.

Referring to fig. 4 to 6 again, the rotating unit 25 includes a rotating shaft 26, a rotating arm 27, a base 28, a test tube 23 and a test tube baffle 24, four rotating arms 27 are 90 degrees each other, the rotating shaft 26 includes a fourth lifting mechanism, the rotating arm 27 can rotate around the rotating shaft 26, the outermost end of the rotating arm 27 is set to be in a hollow rivet shape, the base 28 can be placed on the hollow rivet shape, the base 28 is in a rivet shape, the upper part and the lower part are cylindrical, the radius of the upper part of the cylindrical column is larger than that of the lower part of the cylindrical column, the base 28 can be well attached to the outermost end of the rotating arm 27, certain gaps are left around the upper part and the lower part of the cylindrical column of the base 28 during attachment, the test tube 23 is stably installed on the base 28, the test tube baffle 24 is placed at the top of the test tube 23, and the leakage of the test material is prevented.

When the fourth lifting mechanism of the rotating unit 25 rises to the highest, the assembled base is separated from the ground and moves together with the base at the outermost end of the rotating arm 27; the fourth lifting mechanism when lowered to the lowest is equipped with a base 28 which is separated from the base at the outermost end of the arm 27, a rotating base 29 which contacts the ground and contacts the ground, and a weighing device 30. The rotating unit 25 can realize that four test cylinders simultaneously carry out different operations, reduces the influence of human operation factors on the test process, is beneficial to improving the accuracy of the test process, simultaneously enables the compaction test to be continuously carried out, greatly improves the automation degree and efficiency of the compaction test, and reduces the labor intensity of testers.

Referring to fig. 12, the rotating shaft 26 includes a fourth lifting mechanism, the fourth lifting mechanism can drive the rotating arm 27 to lift, when the rotating arm 27 falls to the lowest end of the rotating shaft 26, the bottom of the left end of the base 28 contacts with the ground, the bottom of the right end contacts with the rotating base 29, the base 28 is separated from the rotating arm 27, and the rotating arm will not act on the base 28 any more; when the rotating arm 27 rises to the uppermost end of the rotating shaft 26, the rotating arm 27 contacts with the base 28 and lifts up the four bases 28, the rotating arm 27 can rotate around the rotating shaft 26 after the base 28 is separated from the ground, and the fourth lifting mechanism can drive the rotating arm 27 to descend for circular operation when the specified purpose is achieved.

The utility model discloses a theory of operation:

during the test, the materials are put into the material conveying bin 21, the lifting device 20 is controlled to ascend, when the materials ascend to the top, the material conveying bin can overturn around the overturning shaft 22, when the lifting device 20 overturns to 90 degrees, the materials in the material conveying bin 21 fall under the action of gravity and just fall into the material loading bin 5, the spiral stirrer 6 is controlled to be opened, and the materials in the material loading bin 5 are stirred.

Four test tubes 23 are prepared and marked as a test tube A, a test tube B, a test tube C and a test tube D respectively, and the test tube A, the test tube B, the test tube C and the test tube D are firstly placed into the material conveying unit 4, the material weighing and placing unit 1, the inserting and smashing unit 2 and the base 28 of the compacting unit 3 respectively according to the anticlockwise sequence. At this time, the test tube A is positioned at the material conveying unit 4, the test tube A is placed on the weighing device 30, and the weight of the test tube A is recorded through data output. After the operation of the test cylinder A is finished, the rotating unit 25 is controlled to operate, the fourth lifting mechanism on the rotating shaft 26 is controlled to ascend, the base 28 is separated from the ground when the fourth lifting mechanism on the rotating shaft 26 ascends to the highest position, the rotating shaft 26 is controlled to rotate 90 degrees anticlockwise, the test cylinder A, the test cylinder B, the test cylinder C and the test cylinder D rotate 90 degrees anticlockwise respectively, the fourth lifting mechanism on the rotating shaft 26 is controlled to descend to the lowest point, and the base 28 is separated from the rotating force arm 27 and contacts with the ground. At the moment, the test cylinder A is positioned at the material weighing and discharging unit 1, the test cylinder A is arranged on the ground, the test cylinder B enters the material conveying unit 4, the test cylinder B is arranged on the weighing device 30, and the test cylinder B is weighed while the material weighing and discharging are carried out on the test cylinder A; the discharge valve 13 of the material weighing and discharging device on the upper portion of the control test cylinder A is opened, the material in the material charging bin 5 enters the upper right semicircle in the material weighing and discharging bin 7 after the material is opened, the mass sensor and the first limiting block 12 start to work, the discharge valve 13 is controlled to be closed after the set mass is reached, the material with constant mass is stored in the upper right semicircle in the material weighing and discharging bin 7, when the material is required to be added into the test cylinder, the mass sensor and the first limiting block 12 can be opened in a remote control mode, the cross-shaped rotating shaft 8 can rotate clockwise under the action of the gravity of the material after the material is opened, the material in the upper right semicircle in the material weighing and discharging bin 7 can enter the lower right semicircle and is discharged through the discharge port 11, and the material is added into the test cylinder A. When the downside baffle of cross pivot 8 passes through control button 10, control button 10 control quality sensor and first stopper 12 pop out, and the excessive rotation that probably takes place under the inertia effect of restriction cross pivot 8, second stopper 9 can realize the clockwise rotation of cross pivot 8, and restricts its anticlockwise rotation, prevents the reversal action that cross pivot 8 probably appears. After the test cylinder A and the test cylinder B are completely operated, the operation of the rotating unit 25 is repeated, the rotating shaft 26 is controlled to rotate 90 degrees counterclockwise, and at the moment, the test cylinder A, the test cylinder B, the test cylinder C and the test cylinder D respectively rotate 90 degrees counterclockwise.

At the moment, the test cylinder A reaches the inserting and smashing unit 2, the test cylinder A is arranged on the ground, the test cylinder B is positioned at the material weighing and discharging unit 1, the test cylinder B is arranged on the ground, the test cylinder C enters the material conveying unit 4, the test cylinder C is arranged on the weighing device 30, the test cylinder B is weighed and discharged while the test cylinder A is inserted and smashed, and the test cylinder C is weighed; the first lifting mechanism of the inserting and tamping device 14 above the test tube A is controlled to descend, the vibrating and rotating rod 15 and the inserting and tamping rod 17 are controlled to carry out inserting and tamping and rotation when the specified position is reached, and the first lifting mechanism of the inserting and tamping device 14 is controlled to ascend after the inserting and tamping is fully carried out.

After the operation of the test cylinder A, the test cylinder B and the test cylinder C is finished, the operation of the rotating unit 25 is repeated, the rotating shaft 26 is controlled to rotate 90 degrees anticlockwise, and the test cylinder A, the test cylinder B, the test cylinder C and the test cylinder D respectively rotate 90 degrees anticlockwise. At the moment, the test cylinder A reaches the compacting unit 3, the test cylinder A is arranged on the rotating base 29, the test cylinder B reaches the inserting and smashing unit 2, the test cylinder B is arranged on the ground, the test cylinder C is arranged at the material weighing and discharging unit 1, the test cylinder C is arranged on the ground, the test cylinder D enters the material conveying unit 4, the test cylinder D is arranged on the weighing device 30, the test cylinder B is inserted and smashed while the test cylinder A is compacted, the test cylinder C is weighed and discharged, and the test cylinder D is weighed; controlling the second lifting mechanism of the compaction device 18 above the test cylinder A to descend, controlling the rotating base 29 to open when reaching a specified position, controlling the test cylinder 23 to start rotating, controlling the compaction device 18 to drive the compaction hammer 19 to compact the test cylinder A, controlling the rotating base 29 to rotate along with the compaction process, compacting once for a certain angle to ensure that the test material in the test cylinder is fully compacted, closing the compaction device 18 and the rotating base 29 after fully compacting, and controlling the second lifting mechanism of the compaction device 18 to ascend. After all the operations of the test cylinder A, the test cylinder B, the test cylinder C and the test cylinder D are finished, the operation of the rotating unit 25 is repeated, the rotating shaft 26 is controlled to rotate 90 degrees anticlockwise, the test cylinder A, the test cylinder B, the test cylinder C and the test cylinder D respectively rotate 90 degrees anticlockwise, and the whole compaction circulating system is a period.

In the stratified compaction test, the amount of the sample in each time can be set in advance, if the test is compacted in three layers, the sample added in each time is set to be one third of the volume of the test cylinder, the compaction process is circulated for three periods, the stratified compaction of the sample in the test cylinder is realized, after all the samples in the first test cylinder A are compacted, the weighing device 30 weighs the test cylinder A filled with the sample, and the compacted density of the sample in the test cylinder A can be output through calculation. After weighing, the test cylinder A is removed, a new test cylinder is replaced, and the other three test cylinders are weighed in sequence, so that the compaction test is continuously carried out, the four test cylinders can be operated simultaneously, and the continuous automation of the compaction test is realized.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (10)

1. A pavement material compaction apparatus is characterized by comprising a bracket and a weighing device (30);

the top end of the bracket is circumferentially and sequentially provided with a material weighing and discharging unit (1), an inserting and tamping unit (2), a compacting unit (3) and a material conveying unit (4), and the bottom end of the bracket is provided with a rotating unit (25);

the rotating unit (25) comprises a rotating shaft (26), four rotating force arms (27) are arranged on the side surface of the rotating shaft (26), mounting holes are formed in each rotating force arm (27), bases (28) are arranged in the mounting holes in a clearance fit mode, and test tubes (23) are arranged on the bases (28); each test cylinder (23) is respectively positioned below the material weighing and discharging unit (1), the inserting and smashing unit (2), the compacting unit (3) and the material conveying unit (4); the weighing device (30) is positioned below a base (28) connected with the test tube (23) below the material conveying unit (4).

2. The pavement material compaction apparatus according to claim 1, wherein the weighing and discharging unit (1) comprises a charging bin (5) and a weighing and discharging bin (7);

the side wall of the charging bin (5) is connected with the bracket, and the outlet of the charging bin (5) is connected with the inlet of the weighing and discharging bin (7) through a discharging valve (13); a cross rotating shaft (8) is rotatably arranged in the weighing and discharging bin (7), and the end surface of the cross rotating shaft (8) is tightly attached to the inner wall of the weighing and discharging bin (7); a first limiting block (12), a second limiting block (9) and a control button (10) are arranged on the inner wall of the weighing and discharging bin (7), a mass sensor is arranged on the first limiting block (12), the first limiting block (12) and the second limiting block (9) are respectively positioned below two ends of a horizontal shaft of the cross rotating shaft (8), and when the mass sensor reaches a preset numerical value, the first limiting block (12) retracts; otherwise, the first limiting block (12) is popped up; the control button (10) is positioned on one side of the vertical shaft of the cross rotating shaft (8) close to the second limiting block (9), and when the control button (10) is pressed down, the first limiting block (12) pops up; a discharge hole (11) of the weighing and discharging bin (7) is positioned above the test tube (23) below the weighing and discharging unit (1).

3. The pavement material compaction apparatus according to claim 2, wherein a screw mixer (6) is disposed inside the hopper (5).

4. The pavement material ramming apparatus according to claim 1, further comprising an tamping device (14), a vibrating rotating rod (15), and a tamping rod (17);

the inserting and smashing device (14) comprises a second lifting mechanism, the bottom of the second lifting mechanism is connected with a vibrating rotating rod (15), the vibrating rotating rod (15) is connected with an inserting and smashing rod (17) in a staggered mode, and the inserting and smashing rod (17) is located above a test tube (23).

5. The pavement material compaction apparatus according to claim 4, wherein the vibrating and rotating rod (15) is provided with a first connecting block and a second connecting block at one end connected with the tamping rod (17), the first connecting block and the second connecting block are slidably sleeved on the tamping rod (17), the tamping rod (17) is sleeved with two springs (16), one end of one spring (16) is connected with the top end of the vibrating and rotating rod (15), the other end of the spring is tightly attached to the first connecting block, and the other spring (16) is located between the first connecting block and the second connecting block.

6. The pavement material compaction apparatus according to claim 1, wherein the compaction unit (3) comprises a compaction device (18) and a compaction hammer (19);

the compaction device (18) comprises a first lifting mechanism, the free end of the first lifting mechanism is connected with a compaction hammer (19), and the compaction hammer (19) is positioned above a test tube (23) below the compaction unit (3).

7. The pavement material compaction apparatus according to claim 6, wherein the compaction unit (3) further comprises a rotating base (29), and the rotating base (29) is located below a base (28) connected with the test tube (23) below the compaction unit (3).

8. The pavement material compaction apparatus according to claim 1, wherein the material conveying unit (4) comprises a lifting device (20), a material conveying bin (21) and a turnover shaft (22);

the lifting device (20) comprises a third lifting mechanism, the free end of the third lifting mechanism is connected with the material conveying bin (21), and the turnover shaft (22) is arranged at the top of the third lifting mechanism; when the material conveying bin (21) is lifted to the turnover shaft (22) by the third lifting mechanism, the turnover shaft (22) turns over the material conveying bin (21), and the sample in the material conveying bin (21) can be poured into the material loading bin (5).

9. The pavement material compaction apparatus according to claim 8, wherein the bottom of the material transportation bin (21) is sloped.

10. The pavement material compaction apparatus according to claim 1, wherein a test tube baffle (24) is arranged on the top of the test tube (23).

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