Rotary asphalt mixture Marshall compaction test apparatus

Abstract

The utility model discloses a rotary asphalt mixture Marshall compaction test apparatus which comprises a machine body, the hammering part is mounted on the machine body; the rotary supporting part is mounted on the machine body and is positioned below the hammering part; a plurality of containing grooves for containing cylinder barrels are evenly formed in the rotary supporting component in the circumferential direction of the rotary supporting component at intervals. A plurality of Marshall test pieces can be formed at a time, the use is convenient, the test piece forming speed is high, and the test piece forming efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to road material experimental equipment technical field relates to a rotary type asphalt mixture marshall compaction instrument. BACKGROUND

[0002] Marshall electric compaction instrument is the forming instrument of cylindrical test piece for standard marshall experiment, indirect conca experiment, large marshall test, and is used for physical mechanics property test of asphalt mixture in laboratory, generally divides into manual and automatic two kinds, and the automatic compaction instrument is more used at present.

[0003] Looking around current asphalt mixture marshall test piece forming technology, all are the equipment of fixed hammer angle, and its forming process includes three steps, first, put enough asphalt mixture in marshall test mould, second, put marshall test piece test mould and asphalt mixture into the clamping groove of marshall compaction instrument, finally, put down the hammer and carry out compaction forming.

[0004] This technology is the asphalt mixture marshall forming technology specified in current specification in our country, but this technology has big defect, first, the forming efficiency is low, can only form one marshall test piece each time, second, marshall test piece test mould needs to be replaced each time when compaction.

[0005] In order to solve the above problems, the utility model provides a rotary type asphalt mixture marshall compaction instrument. CONTENT OF UTILITY MODEL

[0006] In order to solve the problems in the background art, the utility model provides a rotary type asphalt mixture marshall compaction instrument.

[0007] In order to realize the above purpose, the utility model adopts the technical scheme as follows: a rotary type asphalt mixture marshall compaction instrument, including machine body,

[0008] Hammer part, the hammer part is installed on the machine body,

[0009] Rotary support part, the rotary support part is installed on the machine body and is located below the hammer part setting, the rotary support part is uniformly distributed and is spaced apart and is provided with multiple accommodation grooves of accommodation cylinder along its circumferential direction,

[0010] The driving component drives the hammer component and the rotating support component to move synchronously; when the driving component drives the rotating support component to rotate and any cylinder moves to the position directly below the hammer component, the hammer component falls and hammers the asphalt mixture in the cylinder; when the driving component drives the hammer component to rise and leave the cylinder, the driving component synchronously drives the rotating support component to rotate, and the adjacent next cylinder moves to the position directly below the hammer component, and the hammer component falls again and hammers the asphalt mixture in the cylinder; and the process is repeated.

[0011] Further, the hammer component comprises a hammer, a connecting rod, a cover plate and two slide rods which are symmetrically installed on the machine body in the longitudinal direction;

[0012] The hammer is installed at the bottom of the connecting rod, the cover plate is installed at the top of the connecting rod, and the cover plate is sleeved on the two slide rods through a shaft sleeve.

[0013] Further, the rotating support component comprises a mounting shell, a rotating disc, a support bearing, a limiting disc and a fastening rod;

[0014] A plurality of accommodating grooves are uniformly arranged on the upper end surface of the rotating disc along the axis thereof; the support bearing is coaxially installed at the bottom of the rotating disc and is installed on the mounting shell;

[0015] The limiting disc is provided with limiting holes which are adapted to and correspond to the accommodating grooves one by one;

[0016] The limiting disc is fixedly connected with the rotating disc through the fastening rod.

[0017] Further, the driving component comprises a first driving mechanism for driving the hammer component, a second driving mechanism for driving the rotating support component and a driving motor.

[0018] Further, the first driving mechanism comprises a support frame, a driving wheel and a driven wheel which are rotatably installed on the support frame, a transmission chain which is wound on the driving wheel and the driven wheel, clamping plates which are arranged at intervals on the transmission chain, and a clamping plate which is installed on the cover plate.

[0019] The driving wheel and the driven wheel are installed on the support frame in the longitudinal direction.

[0020] Further, the second driving mechanism comprises a ring gear which is coaxially fixed on the rotating disc, an intermittent gear which is rotatably installed in the mounting shell and is engaged with the ring gear, and a rotating shaft which is coaxially installed on the intermittent gear.

[0021] Further, the driving motor is matched with the rotating shaft and the driving wheel through a gear box and drives the rotating shaft and the driving wheel to rotate.

[0022] Compared with the prior art, the utility model have following beneficial effect: the utility model discloses under the mutual cooperation of hammering part, rotary support part, drive part, drive part drives the synchronous action of hammering part and rotary support part, when drive part drives rotary support part to rotate, and any cylinder moves to the just below hammering part, hammering part falls and hammers the asphalt mixture in this cylinder, when drive part drives hammering part to rise and separates the cylinder, drive part synchronously drives rotary support part to rotate, and adjacent next cylinder moves to the just below hammering part, hammering part falls again and hammers the asphalt mixture in this cylinder, reciprocating work like this, can form multiple marshall test pieces one time, convenient to use, test piece forms fast, test piece forms high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of the utility model;

[0024] Figure 2 It is the structure schematic diagram (remove part machine body) of the utility model;

[0025] Figure 3 It is the structure schematic diagram of rotary support part and second drive mechanism in the utility model;

[0026] Figure 4 It is the structure schematic diagram of hammering part and first drive mechanism in the utility model;

[0027] Figure 5 It is the front view of hammering part and first drive mechanism in the utility model.

[0028] In the drawing: 1, machine body;2, hammering part;21, hammer;22, connecting rod;23, cover plate;24, slide rod;3, rotary support part;31, installation shell;32, slewing disc;33, support bearing;34, limit disc;4, drive part;41, first drive mechanism;411, support frame;412, conveying chain;413, clamping plate;414, buckle plate;42, second drive mechanism;421, ring gear;422, intermittent gear;423, rotating shaft;43, drive motor;5, cylinder. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] As Figures 1-5The utility model discloses a technical scheme as follows: a rotary asphalt mixture Marshall compaction instrument, including machine body 1, hammering part 2, rotating support part 3 and drive part 4, wherein hammering part 2 is installed above the position of machine body 1, rotating support part 3 is installed below the position of machine body 1 and is located below hammering part 2 setting;Rotating support part 3 is provided with a plurality of containing grooves of containing cylinder 5 along its circumferential direction even distribution interval;Drive part 4 drives hammering part 2 and rotating support part 3 synchronous action.

[0031] When using the device to hit the asphalt mixture, drive part 4 drives rotating support part 3 to rotate, until when a certain cylinder 5 moves to the just below hammering part 2, drive part 4 does not produce force to hammering part 2 at this time, hammering part 2 falls into the cylinder 5 under the action of its own gravity and hits the asphalt mixture in the cylinder 5;When hammering part 2 falls into the cylinder 5 and no longer acts, drive part 4 drives hammering part 2 to rise and gradually separate from the cylinder 5 at this time, when hammering part 2 completely separates from the cylinder 5, drive part 4 drives rotating support part 3 to rotate, and the adjacent next cylinder 5 moves to the just below hammering part 2, hammering part 2 is at the highest point at this time, and separates from the restriction of drive part 4, hammering part 2 falls into the cylinder 5 under the action of its own gravity and hits the asphalt mixture in the cylinder 5;The process is repeated above, until the asphalt mixture in each cylinder 5 reaches the test standard.

[0032] In the embodiment, hammering part 2 includes hammer 21, connecting rod 22, cover plate 23 and two slide rods 24 vertically symmetrically installed on machine body 1;Hammer 21 is installed at the bottom of connecting rod 22, cover plate 23 is installed at the top of connecting rod 22, and cover plate 23 is sleeved on two slide rods 24 through a shaft sleeve. When working, under the action of two slide rods 24, hammer 21 realizes longitudinal stable movement through connecting rod 22 and cover plate 23, improving the accuracy of falling into cylinder 5.

[0033] In the embodiment, rotating support part 3 includes installation shell 31, rotating disc 32, support bearing 33, limiting disc 34 and fastening rod. A plurality of containing grooves are evenly and interval provided on the upper end surface of rotating disc 32 along its axis, which are used for placing cylinder 5. Support bearing 33 is coaxially installed at the bottom of rotating disc 32 and is installed on installation shell 31 through a shaft rod seat. In order to ensure the stability of rotating disc 32, support bearing 33 adopts a bearing with a rim structure, and the rim abuts on rotating disc 32 after the bearing is installed in rotating disc 32, improving the carrying capacity of support bearing 33. Under the action of support bearing 33, a plurality of cylinders 5 placed on rotating disc 32 can be stably rotated one by one to the just below hammering part 2 and can be adapted with hammering part 2.

[0034] It should be noted that, in order to avoid the slight rotation of the rotating disc 32 when it is not driven by the driving part 4, which affects the accuracy of the cooperation between the hammer part 2 and the rotating disc 32, a self-locking mechanism can be arranged between the rotating disc 32 and the mounting shell 31, which does not affect the normal driving force of the driving part 4 on the rotating disc 32. The self-locking mechanism is a conventional technical means, and the embodiment will not be described in detail, as long as the above-mentioned purpose can be achieved.

[0035] In the embodiment, the limiting disc 34 is provided with limiting holes corresponding to the accommodating grooves; and the limiting disc 34 is fixedly connected with the rotating disc 32 through the fastening rod. Under the action of the limiting disc 34, the stability of the installation and work of the cylinder 5 can be further ensured, the inclination of the cylinder 5 is avoided, and the accuracy of the cooperation between the hammer part 2 and the cylinder 5 is ensured.

[0036] In the embodiment, the driving part 4 comprises a first driving mechanism 41 for driving the hammer part 2, a second driving mechanism 42 for driving the rotating support part 3, and a driving motor 43. The driving motor 43 cooperates with the first driving mechanism 41 and the second driving mechanism 42, so as to realize the synchronous driving of the hammer part 2 and the rotating support part 3.

[0037] In the embodiment, the first driving mechanism 41 comprises a support frame 411, a driving wheel and a driven wheel rotatably installed on the support frame 411, a transmission chain 412 wound on the driving wheel and the driven wheel, a clamping plate 413 installed on the transmission chain 412 at intervals, and a buckle plate 414 fixedly connected with the cover plate 23. The driving wheel and the driven wheel are both longitudinally installed on the support frame 411.

[0038] Under the action of the driving wheel, the transmission chain 412 drives the clamping plate 413 to rotate around the driving wheel and the driven wheel. In this process, the clamping plate 413 abuts against the buckle plate 414, the clamping plate 413 drives the buckle plate 414 to move upward, at this time, the buckle plate 414 drives the hammer part 2 to move upward, until the clamping plate 413 is separated from the buckle plate 414, the hammer part 2 moves to the highest position, at this time, the hammer part 2 hammers the asphalt mixture in the cylinder 5 by the action of its own gravity. When the clamping plate 413 abuts against the buckle plate 414 again, the clamping plate 413 drives the buckle plate 414 to move upward, at this time, the buckle plate 414 drives the hammer part 2 to move upward again, the hammer part 2 gradually separates from the cylinder 5 and moves to the highest position, and the process is repeated.

[0039] In the embodiment, the second driving mechanism 42 comprises an annular gear 421 coaxially fixed on the rotating disc 32, an intermittent gear 422 rotatably installed in the mounting shell 31 and engaged with the annular gear 421, and a rotating shaft 423 coaxially installed on the intermittent gear 422.

[0040] When the intermittent gear 422 rotates one round, the ring gear 421 drives the slewing ring 32 to rotate two adjacent cylinder 5 moving distances.

[0041] In this embodiment, the driving motor 43 is matched with the rotating shaft 423 and the driving wheel through the gear box, and drives the rotating shaft 423 and the driving wheel to rotate.

[0042] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rotary asphalt mix Marshall compactor characterized in that, It comprises: a machine body (1); a hammer component (2) mounted on the machine body (1); a rotating support component (3) mounted on the machine body (1) and arranged below the hammer component (2); the rotating support component (3) is uniformly and spacedly provided with a plurality of accommodating grooves for accommodating the cylinder (5) along the circumference thereof; a driving component (4) for driving the hammer component (2) and the rotating support component (3) to move synchronously; when the driving component (4) drives the rotating support component (3) to rotate and any cylinder (5) moves to the position directly below the hammer component (2), the hammer component (2) falls and hammers the asphalt mixture in the cylinder (5); when the driving component (4) drives the hammer component (2) to rise and move away from the cylinder (5), the driving component (4) synchronously drives the rotating support component (3) to rotate, and the next adjacent cylinder (5) moves to the position directly below the hammer component (2), so that the hammer component (2) falls again and hammers the asphalt mixture in the cylinder (5); and the above process is repeated.

2. The rotary asphalt mix Marshall compactor of claim 1, wherein: The hammer component (2) comprises a hammer (21), a connecting rod (22), a cover plate (23) and two slide rods (24) symmetrically mounted on the machine body (1) in the longitudinal direction; The hammer (21) is mounted at the bottom of the connecting rod (22), and the cover plate (23) is mounted at the top of the connecting rod (22); the cover plate (23) is sleeved on the two slide rods (24) through a shaft sleeve.

3. The rotary asphalt mix Marshall compactor of claim 2, wherein: The rotating support component (3) comprises a mounting shell (31), a rotary disc (32), a support bearing (33), a limiting disc (34) and a fastening rod; A plurality of accommodating grooves are uniformly and spacedly arranged on the upper end surface of the rotary disc (32) along the axis thereof; the support bearing (33) is coaxially mounted on the bottom of the rotary disc (32) and is mounted on the mounting shell (31); The limiting disc (34) is provided with limiting holes which are adapted to and correspond to the accommodating grooves one by one; The limiting disc (34) is fixedly connected with the rotary disc (32) through the fastening rod.

4. The rotary asphalt mix Marshall compactor of claim 3, wherein: The driving component (4) comprises a first driving mechanism (41) for driving the hammer component (2), a second driving mechanism (42) for driving the rotating support component (3) and a driving motor (43).

5. The rotary asphalt mix Marshall compactor of claim 4, wherein: The first driving mechanism (41) comprises a support frame (411), a driving wheel and a driven wheel rotatably mounted on the support frame (411), a transmission chain (412) wound on the driving wheel and the driven wheel, a clamping plate (413) spacedly arranged on the transmission chain (412), and a clamping plate (414) mounted on the cover plate (23); The driving wheel and the driven wheel are longitudinally mounted on the support frame (411).

6. The rotary asphalt mix Marshall compactor of claim 5, wherein: The second driving mechanism (42) comprises an annular gear (421) coaxially fixedly connected with the rotary disc (32), an intermittent gear (422) rotatably mounted in the mounting shell (31) and engaged with the annular gear (421), and a rotating shaft (423) coaxially mounted on the intermittent gear (422).

7. The rotary asphalt mix Marshall compactor of claim 6, wherein: The driving motor (43) is matched with the rotating shaft (423) and the driving wheel through a gear box, and drives the rotating shaft (423) and the driving wheel to rotate.

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