marshall compactor

Abstract

This utility model discloses a Marshall electric compactor, relating to the field of asphalt mixture testing. It includes an electric compactor body comprising a soundproof enclosure and a support base. A clamping assembly for pressing a test mold is disposed between the soundproof enclosure and the support base. The clamping assembly includes two guide rods symmetrically distributed between the soundproof enclosure and the support base. Nuts are threadedly connected to the outer walls of the middle sections of both guide rods. A lower pressure ring connects the two nuts. Springs are sleeved on the upper ends of both guide rods. This utility model, by providing two sets of soundproofing components, can seal the area around the soundproof enclosure and the support base to form a relatively sealed space, thereby reducing noise pollution. Furthermore, when the two partitions move closer together or separate, they can cause the nuts to move up and down on the guide rods via threaded movement, thereby causing the lower pressure ring to press and limit the test mold.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixture testing, specifically a Marshall electric compactor. Background Technology

[0002] The Marshall electric compactor generates significant noise during operation, primarily from motor operation, chain drive, hammer compaction, and friction of mechanical parts. High-frequency noise is produced during compaction, reaching up to 100 decibels without noise reduction measures, far exceeding the human comfort threshold (below 85 decibels). Long-term exposure may lead to operator fatigue and hearing damage. Existing soundproofing structures add a soundproof outer shell to the chain drive and hammer compaction; however, this requires a slot at the bottom of the shell for hammer movement or installation / removal, resulting in a large gap that hinders effective noise isolation and reduction. Utility Model Content

[0003] The purpose of this invention is to provide a Marshall electric compaction apparatus in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a Marshall electric compactor, comprising an electric compactor body, the electric compactor body including a silent shell and a support base, a clamping assembly for clamping a test mold is provided between the silent shell and the support base, the clamping assembly including two guide rods, the two guide rods being symmetrically distributed between the silent shell and the support base, each of the two guide rods having a nut threadedly connected to its outer wall, a lower pressure ring connecting the two nuts, a spring sleeved on the upper end of each of the two guide rods, the spring being located between the bottom of the silent shell and the top of the nut, and a handle fixedly connected to the outer wall of the nut; The soundproof enclosure and the support base also include two sets of sound insulation components. The sound insulation components include a partition plate that is slidably connected to one end between the soundproof enclosure and the support base. A fixing block is fixedly connected to the upper end of the inner wall of the partition plate. A connecting rod is provided between the fixing block and the handle. The two ends of the connecting rod are respectively hinged to the fixing block and the handle.

[0005] As a further improvement of this utility model: the partition is in the shape of a U-shape, the top of the support base is provided with a slide rail for sliding connection of the partition, and the top of the partition is attached to the bottom of the silent shell.

[0006] As a further improvement of this utility model, the partition is made of transparent plastic or soundproof glass.

[0007] As a further improvement of this utility model: when the lower pressure ring presses against the test mold, the two partitions are in a contact-type closed state, so that a relatively closed space is formed between the silent shell and the support base.

[0008] As a further improvement of this utility model, the sound insulation component also includes two limiting strips, which are symmetrically distributed on both sides of the partition, and the distance between the two limiting strips is adapted to the width of the partition.

[0009] As a further improvement of this utility model: a vibration isolation component is provided between the test mold and the support base, and the vibration isolation component is located between the two slide rails.

[0010] As a further improvement of this utility model, the vibration isolation component is a rubber pad.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting two sets of sound insulation components, can be used to seal the perimeter between the silent shell and the support base to form a relatively sealed space, thereby reducing noise hazards and preventing materials from splashing due to impact; in addition, when the two partitions move closer to each other or separate, they can drive the nut to move up and down on the guide rod, thereby pressing and limiting the lower pressure ring against the test mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the trial mold of this utility model; Figure 3 This utility model Figure 2 A magnified structural diagram of region A; Figure 4 This is a schematic diagram of the sound insulation component of this utility model.

[0013] In the diagram: 1. Electric compactor body; 101. Silent housing; 102. Support base; 1021. Slide rail; 2. Compactor assembly; 201. Guide rod; 202. Nut; 203. Spring; 204. Lower pressure ring; 205. Handle; 3. Test mold; 4. Sound insulation assembly; 401. Partition plate; 402. Fixing block; 403. Connecting rod; 5. Vibration isolation component. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 In this embodiment of the utility model, the Marshall electric compactor includes an electric compactor body 1, which includes a silent housing 101 and a support base 102. A clamping assembly 2 for clamping the test mold 3 is provided between the silent housing 101 and the support base 102. The clamping assembly 2 includes two guide rods 201, which are symmetrically distributed between the silent housing 101 and the support base 102. Nuts 202 are threadedly connected to the outer wall of the middle part of the two guide rods 201. A lower pressure ring 204 is connected between the two nuts 202. Springs 203 are sleeved on the upper end of the two guide rods 201. The springs 203 are located between the bottom of the silent housing 101 and the top of the nuts 202. A handle 205 is fixedly connected to the outer wall of the nuts 202.

[0016] The soundproof enclosure 101 and the support base 102 also include two sets of soundproofing components 4. The soundproofing components 4 include a partition 401 that is slidably connected to one end between the soundproof enclosure 101 and the support base 102. A fixing block 402 is fixedly connected to the upper end of the inner wall of the partition 401. A connecting rod 403 is provided between the fixing block 402 and the handle 205. The two ends of the connecting rod 403 are respectively hinged to the fixing block 402 and the handle 205.

[0017] The partition 401 has a U-shaped structure. The top of the support base 102 is provided with a slide rail 1021 for sliding connection of the partition 401. The top of the partition 401 is attached to the bottom of the soundproof cover 101. The partition 401 is made of transparent plastic or soundproof glass. When the pressure ring 204 presses the test mold 3, the two partitions 401 are in a contact-type closed state, so that a relatively closed space is formed between the soundproof cover 101 and the support base 102.

[0018] In this embodiment: by setting two sets of sound insulation components 4, it can be used to seal the perimeter between the soundproof cover 101 and the support base 102 to form a relatively sealed space, thereby reducing noise hazards; in addition, when the two partitions 401 move closer to each other or separate, they can drive the nut 202 to move on the guide rod 201, thereby causing the handle 205 to press and limit the mold 3.

[0019] Specifically, the sound insulation component 4 in this solution is provided in two sets. Before the asphalt mixture needs to be compacted, the test mold 3 needs to be placed directly under the hammer head, and the test mold 3 needs to be pressed down and fixed by the clamping component 2. The difference between this solution and the existing test mold clamping component is that the partitions 401 in the two sets of sound insulation components 4 need to be pushed to move closer to each other, and then the handle 205 is pushed under the action of the connecting rod 403 to drive the nut 202 to rotate (the two ends of the pressure ring 204 are respectively rotatably connected to the two nuts 202). The nut 202 rotating in the thread can move down along the guide rod 201 at the same time, and drive the pressure ring 204 connected to it to move down, thereby completing the pressing and fixing of the test mold 3. At the same time, the two partitions 401 will also abut and close together, thereby sealing the four sides between the soundproof shell 101 and the support base 102 to form a relatively closed space and reduce noise.

[0020] It should be noted that the upper part of the electric compaction device body 1 in this solution is a hammer body that can be automatically controlled to fall, which is the same as the structure and control method of the existing technology center; the clamping component 2 in this solution is the same as the test mold clamping component in the existing technology, both of which use a threaded pair to clamp the test mold onto the support platform, which will not be described in detail here.

[0021] In addition, the initial hinge angle between the connecting rod 403 and the handle 205 in this solution needs to be less than 180 degrees, so that when the partition 401 is pushed to move, the connecting rod 403 and the handle 205 will not rotate in opposite directions.

[0022] Please refer to this carefully. Figures 1-4 The sound insulation component 4 also includes two limiting strips 404, which are symmetrically distributed on both sides of the partition 401, and the spacing between the two limiting strips 404 is adapted to the width of the partition 401.

[0023] In this embodiment, by providing two limiting strips 404 at the bottom of the silent housing 101, the top of the partition 401 can be guided to adjust the smoothness of the partition 401's movement between the silent housing 101 and the support base 102.

[0024] Please refer to this carefully. Figures 1-4 A vibration isolation component 5 is provided between the test mold 3 and the support base 102. The vibration isolation component 5 is located between the two slide rails 1021. The vibration isolation component 5 is a rubber pad.

[0025] In this embodiment: by setting the vibration isolation component 5, the vibration transmission noise between the support base 102 and the mold 3 can be reduced. The vibration isolation component 5 and the support base 102 can be fixed together by screws or glue.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A Marshall electric compactor, comprising an electric compactor body (1), said electric compactor body (1) comprising a soundproof housing (101) and a support base (102), characterized in that, A clamping assembly (2) for clamping the test mold (3) is provided between the silent housing (101) and the support base (102). The clamping assembly (2) includes two guide rods (201). The two guide rods (201) are symmetrically distributed between the silent housing (101) and the support base (102). Nuts (202) are threadedly connected to the outer wall of the middle part of the two guide rods (201). A lower pressure ring (204) is connected between the two nuts (202). A spring (203) is sleeved on the upper end of the two guide rods (201). The spring (203) is located between the bottom of the silent housing (101) and the top of the nut (202). A handle (205) is fixedly connected to the outer wall of the nut (202). The soundproof enclosure (101) and the support base (102) are further provided with two sets of soundproofing components (4). The soundproofing components (4) include a partition (401) that is slidably connected to one end between the soundproof enclosure (101) and the support base (102). A fixing block (402) is fixedly connected to the upper end of the inner wall of the partition (401). A connecting rod (403) is provided between the fixing block (402) and the handle (205). The two ends of the connecting rod (403) are respectively hinged to the fixing block (402) and the handle (205).

2. The Marshall electric compactor according to claim 1, characterized in that, The partition (401) has a U-shaped structure. The top of the support base (102) is provided with a slide rail (1021) for sliding connection of the partition (401). The top of the partition (401) is attached to the bottom of the silent shell (101).

3. The Marshall electric compactor according to claim 2, characterized in that, The partition (401) is made of transparent plastic or soundproof glass.

4. The Marshall electric compactor according to claim 3, characterized in that, When the lower pressure ring (204) presses against the test mold (3), the two partitions (401) are in a contact-type closed state, so that a relatively closed space is formed between the silent shell (101) and the support base (102).

5. The Marshall electric compactor according to claim 4, characterized in that, The sound insulation component (4) also includes two limiting strips (404), which are symmetrically distributed on both sides of the partition (401), and the distance between the two limiting strips (404) is adapted to the width of the partition (401).

6. The Marshall electric compactor according to claim 5, characterized in that, A vibration isolation component (5) is provided between the test mold (3) and the support base (102), and the vibration isolation component (5) is located between the two slide rails (1021).

7. The Marshall electric compactor according to claim 6, characterized in that, The vibration isolation component (5) is a rubber pad.

Images