Anti-sticking device for asphalt mixture automatic compactor

Abstract

The utility model is suitable for bituminous mixture processing technical field provides the anti -adhesion device of bituminous mixture automatic compaction instrument, including base, be provided with top shell on the base, the bottom of top shell is provided with movable rod, the compaction cylinder is placed on the base, the top of compaction cylinder is covered with top cover, the lower extreme of movable rod is provided with compaction hammer, the outside of top cover is provided with the top -tight component that can be tight in compaction cylinder on top cover, the bottom of compaction hammer is provided with bottom chamber, a plurality of ejection rods are arranged in bottom chamber, the lower extreme of a plurality of ejection rods is slid and penetrates the lower surface of compaction hammer, the upper end of a plurality of ejection rods is provided with synchronous board, the upper surface of synchronous board is provided with the pusher assembly that can control the up and down displacement of ejection rod, the utility model discloses through the process of up and down displacement on compaction hammer, automatically control the up and down displacement of ejection rod, thereby can eject the big piece bituminous mixture that adheres in the bottom of compaction hammer, avoided as far as possible the compaction hammer bottom adhered too much bituminous mixture influence the compaction effect.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixture processing technology, and more specifically, it relates to an anti-adhesion device for an automatic asphalt mixture compactor. Background Technology

[0002] The Marshall compactor is a specialized instrument for sample molding in the Marshall stability test of asphalt mixtures. Its structure and performance fully comply with the requirements of highway testing procedures. This instrument is characterized by its small size, convenient operation, and reliable performance. It is basically used by asphalt production enterprises to test asphalt mixtures.

[0003] However, existing compaction equipment has the following drawbacks: Existing compaction equipment uses a compaction hammer to continuously compact the asphalt mixture. However, during the compaction process, most existing compaction hammers have asphalt mixture debris adhering to the bottom surface of the hammer because the bottom surface of the hammer is in direct contact with the asphalt mixture. If too much asphalt mixture debris adheres to the bottom surface of the hammer, it can easily affect the compaction effect of the asphalt mixture. In addition, the bottom surface of the hammer needs to be cleaned manually during daily use, which increases the workload of the staff. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an anti-adhesion device for an automatic asphalt mixture compactor that automatically controls the up-and-down displacement of the ejector rod, thereby ejecting large pieces of asphalt mixture adhering to the bottom of the compaction hammer and minimizing the impact of excessive asphalt mixture adhering to the bottom of the compaction hammer on the compaction effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An anti-adhesion device for an automatic asphalt mixture compactor includes a base, a top shell on the base, a movable rod at the bottom of the top shell, a compaction cylinder on the base, a top sleeve covering the top of the compaction cylinder, a compaction hammer at the lower end of the movable rod, a clamping assembly on the outside of the top sleeve to press the top sleeve onto the compaction cylinder, a bottom cavity at the bottom of the compaction hammer, multiple ejector rods inside the bottom cavity, the lower ends of the multiple ejector rods slidingly penetrating through the lower surface of the hammer, a synchronization plate at the upper end of the multiple ejector rods, and a pushing assembly on the upper surface of the synchronization plate to control the up-and-down displacement of the ejector rods.

[0006] The present invention is further configured such that: the upper surface of the compaction cylinder is provided with a compaction groove for placing asphalt mixture, the top sleeve is hollow inside and has an opening at the bottom, the top of the top sleeve is provided with a connecting groove communicating with its interior, and the lower end of the movable rod passes through the connecting groove through the top sleeve and extends into the compaction groove.

[0007] The present invention is further configured such that: the clamping assembly includes two sleeve sliding plates, which are disposed on the left and right side surfaces of the top sleeve; the upper surface of the base is provided with two fixed sliding rods, which are respectively disposed on the left and right sides of the compaction cylinder; the two sleeve sliding plates are respectively slidably sleeved on the outer surfaces of the two fixed sliding rods; the upper end of the fixed sliding rod is provided with a limiting plate; and a first spring is movably sleeved on the outer surface of the fixed sliding rod between the limiting plate and the sleeve sliding plate.

[0008] The present invention is further configured such that: the pushing assembly includes a pushing rod, the lower end of the pushing rod is disposed on the upper surface of the synchronization plate, the top of the hammer is provided with a top cavity extending into the movable rod, and the upper end of the pushing rod slides through into the top cavity.

[0009] The present invention is further configured such that: a sleeve plate is sleeved on the outer surface of the push rod located in the top cavity, and a second spring is movably sleeved on the outer surface of the push rod between the lower surface of the sleeve plate and the bottom wall of the top cavity.

[0010] The present invention is further configured such that: a plurality of contact rods are provided in the top cavity, and the ends of the plurality of contact rods away from the push rod slide through the outer surface of the movable rod; a rotating plate is hinged between the end of the contact rod located in the top cavity and the outer surface of the push rod.

[0011] The present invention is further configured such that: a protrusion is provided on the inner wall of the connecting groove near the contact rod, and the end of the contact rod located outside the movable rod contacts the outer surface of the protrusion and slides.

[0012] The advantages of this utility model are: This invention automatically controls the up-and-down movement of the ejector rod during the up-and-down movement of the compaction hammer, thereby removing large pieces of asphalt mixture debris adhering to the bottom of the compaction hammer. This minimizes the impact of excessive asphalt mixture adhering to the bottom of the compaction hammer on the compaction effect. Furthermore, this compaction device eliminates the need for manual cleaning of the bottom of the compaction hammer during use, thus improving its efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-adhesion device of the automatic asphalt mixture compactor of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view plan of the internal structure of the compaction hammer of this utility model; Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0014] In the diagram: 1. Base; 2. Top shell; 3. Movable rod; 4. Compactor cylinder; 5. Top sleeve; 6. Tightening assembly; 61. Fixed slide rod; 62. Sleeve slide plate; 63. Limiting plate; 64. First spring; 7. Compacting hammer; 8. Compacting groove; 9. Bottom cavity; 10. Ejector rod; 11. Synchronizing plate; 12. Top cavity; 13. Push rod; 14. Sleeve plate; 15. Second spring; 16. Contact rod; 17. Rotating plate; 18. Protrusion; 19. Connecting groove. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Please see Figure 1-4 The present invention provides the following technical solution: Specifically, it refers to the anti-adhesion device of the automatic asphalt mixture compactor, including a base 1, a top shell 2 on the base 1, a movable rod 3 at the bottom of the top shell 2, the upper end of the movable rod 3 slidingly penetrating into the top shell 2 and connected to the chain drive assembly inside the top shell 2, a compaction cylinder 4 placed on the base 1, a top sleeve 5 covering the top of the compaction cylinder 4, the top sleeve 5 being hollow inside and having an opening at the bottom, a connecting groove 19 communicating with the interior of the top sleeve 5 being opened at the top of the top sleeve 5, a compaction groove 8 being opened on the upper surface of the compaction cylinder 4, the lower end of the movable rod 3 passing through the connecting groove 19 through the top sleeve 5 and extending into the compaction groove 8, a compaction hammer 7 being provided at the lower end of the movable rod 3, and a clamping assembly 6 being provided on the outside of the top sleeve 5 to press the top sleeve 5 tightly onto the compaction cylinder 4.

[0018] When in use, the asphalt mixture is placed into the compaction cylinder 4, and then the compaction cylinder 4 is placed on the base 1. The top sleeve 5 is covered on the compaction cylinder 4 under the tightening of the tightening component 6. At this time, the chain drive component in the top shell 2 operates, controlling the up and down displacement of the movable rod 3, so that the compaction hammer 7 can compact the asphalt mixture in the compaction groove 8.

[0019] The clamping assembly 6 includes two sliding plates 62, which are disposed on the left and right sides of the top sleeve 5. The upper surface of the base 1 is provided with two fixed sliding rods 61, which are respectively disposed on the left and right sides of the compaction cylinder 4. The two sliding plates 62 are slidably sleeved on the outer surfaces of the two fixed sliding rods 61. The upper end of the fixed sliding rod 61 is provided with a limiting plate 63, and a first spring 64 is movably sleeved on the outer surface of the fixed sliding rod 61 between the limiting plate 63 and the sliding plate 62.

[0020] When it is necessary to place the compaction cylinder 4 on the base 1, first push the top sleeve 5 upward. At this time, the mounting plate 62 will squeeze the first spring 64, so that the first spring 64 is stressed and contracts, thus the compaction cylinder 4 can be placed directly below the top sleeve 5. After the compaction cylinder 4 is placed, release the top sleeve 5. The top sleeve 5 will cover the compaction cylinder 4 under the push of the first spring 64.

[0021] The bottom of the hammer 7 has a bottom cavity 9, and multiple ejector rods 10 are provided in the bottom cavity 9. The lower ends of the multiple ejector rods 10 slide through the lower surface of the hammer 7. The upper ends of the multiple ejector rods 10 are provided with a synchronizing plate 11. The top of the hammer 7 has a top cavity 12 extending into the movable rod 3. The upper surface of the synchronizing plate 11 is provided with a push rod 13 whose upper end slides through into the top cavity 12. The outer surface of the push rod 13 located in the top cavity 12 is fitted with a sleeve plate 14. The lower surface of the sleeve plate 14 and the bottom wall of the top cavity 12 are provided with a second spring 15 that is movably fitted on the outer surface of the push rod 13.

[0022] When the second spring 15 is not compressed, the second spring 15 will exert a pushing force on the sleeve plate 14, so that the initial position of the sleeve plate 14 is away from the bottom cavity 9. At this time, the push rod 13 pulls the synchronous plate 11 to contact the top wall of the bottom cavity 9, and at the same time, the lower surface of the ejector rod 10 is flush with the lower surface of the hammer 7, thereby maintaining the flatness of the lower surface of the hammer 7.

[0023] Multiple contact rods 16 are provided in the top cavity 12. The end of the multiple contact rods 16 away from the push rod 13 slides through the outer surface of the movable rod 3. The end of the contact rod 16 located in the top cavity 12 is hinged to the outer surface of the push rod 13 with a rotating plate 17. A protrusion 18 is provided on the inner wall of the connecting groove 19 near the contact rod 16. The end of the contact rod 16 located outside the movable rod 3 contacts the outer surface of the protrusion 18 and slides.

[0024] When the movable rod 3 moves up and down, the contact rod 16 can contact the protrusion 18. At this time, the contact rod 16 is squeezed by the protrusion 18, causing the contact rod 16 to move to one side inside the top cavity 12. At the same time, the contact rod 16 will exert a pushing force on the rotating plate 17. Then, the rotating plate 17 will exert a downward pushing force on the pushing rod 13, causing the pushing rod 13 to push the synchronous plate 11 down. At this time, multiple ejector rods 10 are displaced from the lower surface of the compaction hammer 7, thereby ejecting the large pieces of asphalt mixture adhering to the bottom of the compaction hammer 7. This minimizes the impact of excessive asphalt mixture adhering to the bottom of the compaction hammer 7 on the compaction effect. In addition, the compaction device does not require manual cleaning of the bottom of the compaction hammer 7 during use, thus improving the efficiency of the compaction device.

[0025] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An anti-adhesion device for an automatic asphalt mixture compactor, comprising a base (1), a top shell (2) disposed on the base (1), a movable rod (3) disposed at the bottom of the top shell (2), a compaction cylinder (4) placed on the base (1), and a top sleeve (5) covering the top of the compaction cylinder (4), characterized in that: The lower end of the movable rod (3) is provided with a tamping hammer (7), and the outer side of the top sleeve (5) is provided with a pressing component (6) that can press the top sleeve (5) onto the tamping cylinder (4). The bottom of the tamping hammer (7) is provided with a bottom cavity (9), and multiple ejector rods (10) are provided in the bottom cavity (9). The lower ends of the multiple ejector rods (10) slide through the lower surface of the tamping hammer (7), and the upper ends of the multiple ejector rods (10) are provided with a synchronizing plate (11). The upper surface of the synchronizing plate (11) is provided with a pushing component that can control the up and down displacement of the ejector rods (10).

2. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 1, characterized in that: The upper surface of the compaction cylinder (4) is provided with a compaction groove (8) for placing asphalt mixture. The top sleeve (5) is hollow inside and has an opening at the bottom. The top of the top sleeve (5) is provided with a connecting groove (19) that communicates with its interior. The lower end of the movable rod (3) passes through the connecting groove (19) into the top sleeve (5) and extends into the compaction groove (8).

3. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 1, characterized in that: The clamping assembly (6) includes two sleeved sliding plates (62), which are disposed on the left and right sides of the top sleeve (5). The upper surface of the base (1) is provided with two fixed sliding rods (61), which are respectively disposed on the left and right sides of the compaction cylinder (4). The two sleeved sliding plates (62) are respectively slidably sleeved on the outer surfaces of the two fixed sliding rods (61). The upper end of the fixed sliding rod (61) is provided with a limiting plate (63), and a first spring (64) is movably sleeved on the outer surface of the fixed sliding rod (61) between the limiting plate (63) and the sleeved sliding plate (62).

4. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 2, characterized in that: The pushing assembly includes a pushing rod (13), the lower end of which is disposed on the upper surface of the synchronization plate (11). The top of the hammer (7) is provided with a top cavity (12) extending into the movable rod (3), and the upper end of the pushing rod (13) slides through into the top cavity (12).

5. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 4, characterized in that: The push rod (13) is fitted with a sleeve plate (14) on its outer surface inside the top cavity (12). A second spring (15) is provided between the lower surface of the sleeve plate (14) and the bottom wall of the top cavity (12) and is movably fitted on the outer surface of the push rod (13).

6. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 5, characterized in that: The top cavity (12) is provided with multiple contact rods (16). The end of the multiple contact rods (16) away from the push rod (13) slides through the outer surface of the movable rod (3). The end of the contact rod (16) located in the top cavity (12) is hinged to the outer surface of the push rod (13) with a rotating plate (17).

7. The anti-adhesion device of the automatic asphalt mixture compactor according to claim 6, characterized in that: The connecting groove (19) has a protrusion (18) on the inner wall near the contact rod (16). The end of the contact rod (16) located outside the movable rod (3) contacts the outer surface of the protrusion (18) and slides.

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