A subgrade filling auxiliary device

Abstract

The utility model discloses a kind of roadbed filling auxiliary devices, including tamper head frame, pendulum, transmission wheel, rotating shaft, tray and driver, transmission wheel includes driving wheel and driven wheel, driving wheel is fixed on rotating shaft, driven wheel is connected on tamper head frame, pendulum is fixed on driven wheel, driver is connected with rotating shaft transmission, driving wheel and driven wheel are driven by belt, rotating shaft and driver are all installed on tray, tamper head frame includes support, rammer and connecting rod, one end of connecting rod is fixedly connected with one side of support, other side is movably connected with rotating shaft, rammer is fixed on the bottom end of support, rammer is provided with beating mechanism for eliminating soil layer suction force. When pendulum drives rammer to move upwards, tamping piece moves upwards later than rammer under the action of its gravity, pin separates from via hole, air enters the bottom of tamping piece from via hole, ensure that the internal and external air pressure of tamping piece is consistent, thereby avoid tamping piece and rammer to be adsorbed by soil layer, to improve tamping soil layer efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road surface construction technology, and more specifically, it relates to a roadbed filling auxiliary device. Background Technology

[0002] Roadbed filling is divided into four sections according to construction operations: filling, leveling, compaction, and testing. In the compaction process, under special conditions, manual compaction with the help of small rammers is required. Frog-type rammers are frequently used due to their ease of operation. A frog-type rammer includes a rammer head frame, transmission device, tray, front axle device, drive unit, and operating handle. The front axle device is mounted on the rammer head frame, while the transmission device and drive unit are mounted on the tray. The rammer head frame is located on one side of the tray's forward direction and is movably connected to the transmission device. The operating handle is located on the other side of the tray opposite the rammer head frame. Under the centrifugal force of the pendulum in the front axle device, the rammer head frame swings up and down. Simultaneously, under the centrifugal force of rotation, the pendulum pulls the rammer head frame forward when it swings upward. Therefore, the frog-type rammer moves forward one step with each hammer strike.

[0003] In traditional frog-type rammers, the bottom of the hammer is made of a flat metal plate. When compacting soil, a negative pressure is easily generated between the hammer and the soil layer, which can affect the height that the pendulum swings upward and pulls the hammer upward, thus reducing the compaction effect. Therefore, improvements need to be made to the transmission of the frog-type rammer. Utility Model Content

[0004] The purpose of this utility model is to provide a roadbed filling auxiliary device to solve the above-mentioned problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A roadbed filling auxiliary device includes a tamping head frame, a pendulum, a transmission wheel, a rotating shaft, a tray, and a driver. The transmission wheel includes a driving wheel and a driven wheel. The driving wheel is coaxially and fixedly connected to the rotating shaft. The driven wheel is rotatably connected to the top of the tamping head frame. The pendulum is fixed to the driven wheel. The driver is drively connected to the rotating shaft. The driving wheel and the driven wheel are driven by a belt. The rotating shaft and the driver are both mounted on the tray. The tamping head frame includes a support, a tamping hammer, and a connecting rod. One end of the connecting rod is fixedly connected to one side of the support, and the other end is movably connected to the rotating shaft. The driven wheel is movably connected to the top of the support. The tamping hammer is fixed to the bottom of the support. The tamping hammer is equipped with a hammering mechanism for eliminating soil suction.

[0007] Preferably, the tamping mechanism includes a tamping component, which is sleeved on a tamping hammer. The lower end face of the tamping component has several through holes, and the lower end face of the tamping hammer has several pins. The pins correspond one-to-one with the through holes, and the length of the pins is equal to or slightly equal to the depth of the through holes.

[0008] Preferably, an elastic element is installed on the end face of the tamping component with the through hole, and the other end of the elastic element is fixedly connected to the tamping hammer;

[0009] The tamping component has a lower groove, the tamping hammer has an upper groove, the lower end of the elastic component is embedded in the lower groove, and the top end of the elastic component is embedded in the upper groove.

[0010] Preferably, the cross-section of the tamping component is U-shaped, and a detachable stop is provided on the inner side of its top end. The stop is inserted into the tamping component and fixed by bolts.

[0011] Preferably, the end face of the tamping component used for tamping soil has several protrusions.

[0012] Preferably, the via is configured as a funnel shape, wider at the top and narrower at the bottom.

[0013] The beneficial effects of this utility model are: the tamping hammer drives the compacting component to pound the soil layer together. When the pendulum hammer drives the tamping hammer to move upward, the compacting component moves upward later than the tamping hammer under its own gravity. At the same time as the tamping hammer moves upward, the pin separates from the through hole, and air enters the bottom of the compacting component through the through hole, ensuring that the internal and external air pressure of the compacting component is consistent, thereby avoiding the compacting component and the tamping hammer being absorbed by the soil layer, thus improving the efficiency of compacting the soil layer. Attached Figure Description

[0014] Figure 1 A schematic diagram of roadbed filling auxiliary equipment;

[0015] Figure 2 This is a diagram showing the tamping component connected to the tamping hammer. Figure 1 ;

[0016] Figure 3 This is a diagram showing the tamping component connected to the tamping hammer. Figure 2 ;

[0017] In the diagram: 1. Rammer head frame; 11. Support; 12. Rammer hammer; 121. Pin; 13. Connecting rod; 2. Pendulum hammer; 3. Transmission wheel; 31. Driving wheel; 32. Driven wheel; 4. Shaft; 5. Tray; 6. Driver; 7. Hammering mechanism; 71. Compactor; 711. Through hole; 72. Elastic element; 73. Stop; 8. Protrusion; 9. Operating handle. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] according to Figure 1-3 As shown, a roadbed filling auxiliary device includes a tamping head frame 1, a pendulum 2, a transmission wheel 3, a rotating shaft 4, a tray 5, an operating handle 9, and a driver 6. The transmission wheel 3 includes a driving wheel 31 and a driven wheel 32. The driving wheel 31 is coaxially and fixedly connected to the rotating shaft 4. The driven wheel 32 is rotatably connected to the top of the tamping head frame 1. The pendulum 2 is fixed to the driven wheel 32. The driver 6 is drively connected to the rotating shaft 4. The driving wheel 31 and the driven wheel 32 are driven by a belt. The rotating shaft 4 and the driver 6 are both mounted on the tray 5. The tamping head frame 1 includes a support 11, a tamping hammer 12, and a connecting rod 13. One end of the connecting rod 13 is fixedly connected to one side of the support 11, and the other end is movably connected to the rotating shaft 4. The driven wheel 32 is movably connected to the top of the support 11. The tamping hammer 12 is fixed to the bottom of the support 11. The tamping hammer 12 is equipped with a hammering mechanism 7 for eliminating soil suction. The tamping mechanism 7 includes a tamping component 71, which is sleeved on the hammer 12. The lower end face of the tamping component 71 has several through holes 711, which are funnel-shaped with a wider top and a narrower bottom. The lower end face of the hammer 12 has several pins 121, which are arranged one-to-one with the several through holes 711, and the length of the pins 121 is equal to or slightly equal to the depth of the through holes 711.

[0022] according to Figure 1-3 As shown, an elastic element 72 is installed on the end face of the compactor 71 with a through hole 711, and the other end of the elastic element 72 is fixedly connected to the tamping hammer 12. A lower groove is formed on the compactor 71, and an upper groove is formed on the tamping hammer 12. The lower end of the elastic element 72 is embedded in the lower groove, and the top end of the elastic element 72 is embedded in the upper groove. The cross-section of the compactor 71 is U-shaped, and a detachable stop block 73 is provided on the inner side of its top end. The stop block 73 is inserted into the compactor 71 and fixed with bolts. Several protrusions 8 are provided on the end face of the compactor 71 used for compacting soil.

[0023] according to Figure 1-3 As shown, the hammer 12 drives the compactor 71 to pound the soil layer together. When the pendulum 2 drives the hammer 12 to move upward, the compactor 71 moves upward later than the hammer 12 under its own gravity. At the same time as the hammer 12 moves upward, the pin 121 separates from the through hole 711, and air enters the bottom of the compactor 71 through the through hole 711 to ensure that the internal and external air pressure of the compactor 71 is consistent, thereby preventing the compactor 71 and the hammer 12 from being absorbed by the soil layer, so as to improve the efficiency of compacting the soil layer.

[0024] according to Figure 1-3 As shown, the working principle of the roadbed filling auxiliary device is as follows: the driver 6 is a motor, which drives the rotating shaft 4 to rotate via belt transmission. The driving wheel 31, which is coaxially fixedly connected to the rotating shaft 4, drives the driven wheel 32 to rotate via belt transmission. The rotating shaft 4 is movably connected to the tray 5 via bearings. The pendulum 2 is fixedly connected to the driven wheel 32 near the outer edge by bolts. There are two pendulums 2, distributed on the front and rear sides of the driven wheel 32. When the driven wheel 32 rotates, the centrifugal force provided by the pendulum 2 causes the tamping hammer 12 to move up or down, and at the same time, it also drives the tamping head frame 1 to jump forward. The driven wheel 32 is mounted on the top of the support 11 via a crossbar. In addition, the elastic element 72 can be a compression spring, a rubber pad, or a V-shaped spring. In this application, the elastic element 72 is preferably a compression spring. When the tamping hammer 12 and the tamping element 71 are in contact, the compression spring is completely retracted in the space where the upper and lower grooves are joined. Furthermore, the weights of the pendulum 2 and the tamping element 71 in this application can be replaced.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roadbed filling auxiliary device, comprising a tamping head frame (1), a pendulum (2), a transmission wheel (3), a rotating shaft (4), a tray (5), and a driver (6), wherein the transmission wheel (3) comprises a driving wheel (31) and a driven wheel (32), the driving wheel (31) is coaxially and fixedly connected to the rotating shaft (4), the driven wheel (32) is rotatably connected to the top of the tamping head frame (1), the pendulum (2) is fixed on the driven wheel (32), the driver (6) is drivenly connected to the rotating shaft (4), the driving wheel (31) and the driven wheel (32) are driven by a belt, and the rotating shaft (4) and the driver (6) are both mounted on the tray (5), characterized in that: The tamping head frame (1) includes a support (11), a tamping hammer (12) and a connecting rod (13). One end of the connecting rod (13) is fixedly connected to one side of the support (11), and the other side is movably connected to the rotating shaft (4). The driven wheel (32) is movably connected to the top of the support (11). The tamping hammer (12) is fixed to the bottom of the support (11). The tamping hammer (12) is equipped with a hammering mechanism (7) for eliminating soil suction.

2. The roadbed filling auxiliary device according to claim 1, characterized in that: The hammering mechanism (7) includes a tamping component (71), which is sleeved on the hammer (12). The lower end face of the tamping component (71) has several through holes (711), and the lower end face of the hammer (12) has several pins (121). The pins (121) correspond one-to-one with the through holes (711), and the length of the pins (121) is equal to or slightly equal to the depth of the through holes (711).

3. The roadbed filling auxiliary device according to claim 2, characterized in that: An elastic element (72) is installed on the end face of the tamping component (71) with a through hole (711), and the other end of the elastic element (72) is fixedly connected to the tamping hammer (12); The tamping component (71) has a lower groove, the tamping hammer (12) has an upper groove, the lower end of the elastic component (72) is embedded in the lower groove, and the top end of the elastic component (72) is embedded in the upper groove.

4. The roadbed filling auxiliary device according to claim 3, characterized in that: The tamping component (71) has a U-shaped cross section and a detachable stop (73) is provided on the inner side of its top end. The stop (73) is inserted into the tamping component (71) and fixed by bolts.

5. The roadbed filling auxiliary device according to claim 4, characterized in that: The tamping component (71) has several protrusions (8) on its end face used for tamping the soil.

6. The roadbed filling auxiliary device according to claim 5, characterized in that: The via (711) is configured as a trumpet shape that is wider at the top and narrower at the bottom.

Images