Roadbed tamping machine

Abstract

The utility model relates to the technical field of roadbed construction, in particular to a roadbed tamping machine. Comprising a base; the first transmission wheel is rotatably arranged on the base, and the first transmission wheel is driven by a motor; the transmission shaft is rotatably arranged on the base, and a second transmission wheel and a third transmission wheel are fixedly arranged on the transmission shaft; the tamping frame is rotatably arranged on the transmission shaft; the eccentric mechanism is rotatably arranged on the tamping frame; the first transmission belt is connected with the second transmission wheel and the first transmission wheel; the second transmission belt is connected with the third transmission wheel and the eccentric mechanism, and the eccentric distance of the eccentric mechanism is adjustable. The eccentric mechanism comprises a main shaft which is rotatably arranged on the rammer frame; the main disc is fixedly sleeved on the main shaft, and the gravity center of the main disc does not coincide with the rotation center; the balance weight disc is rotatably arranged on the main shaft in a sleeving mode, and the gravity center of the balance weight disc does not coincide with the rotation center. The eccentric distance of the eccentric mechanism can be conveniently adjusted, so that the vibration force of the tamping machine is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed construction, in particular to a roadbed tamping machine. Background Art

[0002] A roadbed rammer is a type of engineering machinery used to compact soil, sand, gravel or other filling materials. It is mainly used in road construction, foundation treatment, trench backfilling and other projects. It improves the density of the roadbed through impact or vibration, thereby enhancing the bearing capacity and stability.

[0003] The existing roadbed tamping machine is usually composed of the following core components: a power unit, which is used as a power source to drive the whole machine. A transmission system, which transmits power to the eccentric rotor. An eccentric rotor mechanism, which generates periodic centrifugal force through high-speed rotation, drives the tamping head to produce vertical reciprocating impact motion. A tamping head assembly, which directly acts on the working surface. A mobile chassis, which supports the whole machine and can be pushed by the operator to achieve position adjustment.

[0004] When the vibration force of the roadbed rammer needs to be adjusted, it can usually be achieved by adjusting the rotation speed or replacing the eccentric counterweight. However, the latter involves the replacement of accessories, the operation process is more complicated, and it is not convenient in actual application. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a roadbed rammer, which can conveniently adjust the eccentricity of the eccentric mechanism, thereby adjusting the vibration force of the rammer.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A roadbed tamping machine, comprising:

[0008] Base;

[0009] A first transmission wheel is rotatably disposed on the base, and the first transmission wheel is driven by a motor;

[0010] A transmission shaft is rotatably arranged on the base, and a second transmission wheel and a third transmission wheel are fixedly arranged on the transmission shaft;

[0011] A tamping frame is rotatably disposed on the transmission shaft;

[0012] An eccentric mechanism is rotatably arranged on the tamping frame;

[0013] A first transmission belt connecting the second transmission wheel and the first transmission wheel;

[0014] The second transmission belt connects the third transmission wheel and the eccentric mechanism, and the eccentric distance of the eccentric mechanism is adjustable.

[0015] Further, the eccentric mechanism comprises:

[0016] A main shaft is rotatably disposed on the tamping frame;

[0017] The main plate is fixedly mounted on the main shaft, and the center of gravity of the main plate does not coincide with the center of rotation;

[0018] The counterweight plate is rotatably mounted on the main shaft, and the center of gravity of the counterweight plate does not coincide with the center of rotation.

[0019] Furthermore, the main disk includes:

[0020] A first plate body, wherein a plurality of first positioning holes are formed on the outer periphery of the first plate body;

[0021] The weight plate includes:

[0022] A second plate body, wherein a plurality of second positioning holes are formed on the outer periphery of the second plate body;

[0023] The positioning bolt is inserted into the first positioning hole and the second positioning hole.

[0024] Furthermore, the first plate body is provided with a first empty slot, and the first empty slot is semicircular;

[0025] The second plate body is provided with a second empty slot, and the second empty slot is semicircular.

[0026] Furthermore, a first support beam is arranged in the first empty slot, and a second support beam is arranged in the second empty slot.

[0027] Furthermore, a first center hole is provided at the center of the first disk body, and the first center hole is fixedly sleeved on the main shaft;

[0028] A second center hole is arranged at the center of the second disk body, and the second center hole is rotatably sleeved on the main shaft.

[0029] Furthermore, a plurality of radial insertion holes are formed on the side wall of the second disk.

[0030] Furthermore, a handle is provided on the base.

[0031] Beneficial effects of the utility model:

[0032] (1) The eccentric mechanism adopts a multi-level adjustable design. By rotating the relative angle between the counterweight disc and the main disc, the multi-level adjustment of the eccentric distance can be achieved, thereby accurately controlling the vibration force output of the rammer.

[0033] (2) After the adjustment is completed, the relative position of the counterweight plate and the main plate can be quickly locked using bolts to ensure the stability of the working state.

[0034] (3) The structure supports multi-level adjustment modes, which can provide a variety of different excitation force levels according to construction requirements, while reducing the complexity of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0036] Figure 1 It is a structural schematic diagram of the utility model;

[0037] Figure 2 It is a structural diagram of the eccentric mechanism;

[0038] Figure 3 It is an exploded view of the eccentric mechanism;

[0039] Figure 4 It is a schematic diagram of the structure of the main disk;

[0040] Figure 5 It is a structural diagram of the counterweight plate.

[0041] In the figure:

[0042] 1. base, 2. first transmission wheel, 3. first transmission belt, 4. second transmission wheel, 5. tamping frame, 6. eccentric mechanism, 7. second transmission belt, 8. transmission shaft, 9. third transmission wheel, 10. motor, 11. handle;

[0043] 61. Main plate, 62. Counterweight plate, 63. Positioning bolt, 64. Main shaft;

[0044] 611. first plate, 612. first positioning hole, 613. first empty slot, 614. first support beam, 615. first center hole;

[0045] 621. Second disk body, 622. Second empty slot, 623. Second support beam; 624. Second positioning hole; 625. Insertion hole; 626. Second center hole. DETAILED DESCRIPTION

[0046] The utility model is further described in detail below with reference to the accompanying drawings.

[0047] A roadbed tamping machine includes a base 1, on which a handle 11 is provided. A first transmission wheel 2 is rotatably provided on the base 1, and the first transmission wheel 2 is driven by a motor 10, and the motor 10 is fixedly provided on the base 1. A transmission shaft 8 is rotatably provided on the base 1, and a second transmission wheel 4 and a third transmission wheel 9 are fixedly provided on the transmission shaft 8. A tamping frame 5 is rotatably provided on the transmission shaft 8, and the tamping frame 5 can rotate relative to the base 1. An eccentric mechanism 6 is rotatably provided on the tamping frame 5, and the eccentric mechanism 6 drives the tamping frame 5 to move by centrifugal force. The eccentric distance of the eccentric mechanism 6 is adjustable. Thus, the vibration force of the tamping machine is adjusted. A first transmission belt 3 connects the second transmission wheel 4 and the first transmission wheel 2. A second transmission belt 7 connects the third transmission wheel 9 and the eccentric mechanism 6. The first transmission wheel 2, the second transmission wheel 4 and the third transmission wheel 9 all use pulleys.

[0048] The eccentric mechanism 6 includes a main shaft 64, which is rotatably arranged on the tamping frame 5 through bearing seats at both ends. The main plate 61 is fixedly sleeved on the main shaft 64, and the center of gravity of the main plate 61 does not coincide with the center of rotation. The counterweight plate 62 is rotatably sleeved on the main shaft 64, and the center of gravity of the counterweight plate 62 does not coincide with the center of rotation. There are two counterweight plates 62, which are respectively located on both sides of the main plate 61. The diameters of the main plate 61 and the counterweight plate 62 are the same, and the thickness of the main plate 61 is twice the thickness of the counterweight plate 62.

[0049] The main plate 61 includes a first plate body 611, and a plurality of first positioning holes 612 are formed on the outer periphery of the first plate body 611. The counterweight plate 62 includes a second plate body 621, and a plurality of second positioning holes 624 are formed on the outer periphery of the second plate body 621. The positioning bolts 63 are inserted into the first positioning holes 612 and the second positioning holes 624. Thus, the relative positions of the main plate 61 and the counterweight plate 62 are fixed. In a specific implementation, the positions of the counterweight plates 62 on both sides correspond to each other. Thus, the axial balance is ensured.

[0050] A first center hole 615 is disposed at the center of the first disk body 611 , and the first center hole 615 is fixedly sleeved on the main shaft 64 . A second center hole 626 is disposed at the center of the second disk body 621 , and the second center hole 626 is rotatably sleeved on the main shaft 64 .

[0051] In order to make the center of gravity of the first plate body 611 and the center of rotation of the second plate body 621 not coincident, the first plate body 611 is provided with a hollow first slot 613, which is a semicircular slot. The first slot 613 is located on one side of the first center hole 615. The second plate body 621 is provided with a hollow second slot 622, which is a semicircular slot. The second slot 622 is located on one side of the second center hole 626. The first slot 613 and the second slot 622 have the same shape.

[0052] In order to ensure the strength of the first plate body 611 and the second plate body 621, a first support beam 614 is disposed in the first empty slot 613, and the first support beam 614 is radially disposed at the center of the first empty slot 613. A second support beam 623 is disposed in the second empty slot 622, and the second support beam 623 is radially disposed at the center of the second empty slot 622. The first support beam 614 and the second support beam 623 have the same shape.

[0053] In order to facilitate the adjustment of the angle of the counterweight plate 62, a plurality of radial insertion holes 625 are provided on the side wall of the second plate body 621. By inserting the positioning bolts 63 into the insertion holes 625, the angle of the counterweight plate 62 can be adjusted more conveniently through the positioning bolts 63. Moreover, after the positioning bolts 63 are removed from the main plate 61 and the counterweight plate 62, the insertion holes 625 can also serve to accommodate the positioning bolts 63.

[0054] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A roadbed tamping machine, characterized in that: include: Base (1); A first transmission wheel (2) is rotatably arranged on the base (1), wherein the first transmission wheel (2) is driven by a motor (10); A transmission shaft (8) is rotatably arranged on the base (1), and a second transmission wheel (4) and a third transmission wheel (9) are fixedly arranged on the transmission shaft (8); A tamping frame (5) rotatably disposed on the transmission shaft (8); An eccentric mechanism (6) is rotatably arranged on the tamping frame (5); A first transmission belt (3) connecting the second transmission wheel (4) and the first transmission wheel (2); The second transmission belt (7) connects the third transmission wheel (9) and the eccentric mechanism (6), and the eccentric distance of the eccentric mechanism (6) is adjustable.

2. A roadbed tamping machine according to claim 1, characterized in that: The eccentric mechanism (6) comprises: A main shaft (64) is rotatably disposed on the tamping frame (5); A main disk (61) is fixedly sleeved on the main shaft (64), wherein the center of gravity of the main disk (61) does not coincide with the center of rotation; The counterweight plate (62) is rotatably sleeved on the main shaft (64), and the center of gravity of the counterweight plate (62) does not coincide with the center of rotation.

3. A roadbed tamping machine according to claim 2, characterized in that: The main disk (61) comprises: A first disk body (611), wherein a plurality of first positioning holes (612) are formed on the outer circumference of the first disk body (611); The counterweight plate (62) comprises: A second plate body (621), wherein a plurality of second positioning holes (624) are formed on the outer circumference of the second plate body (621); A positioning bolt (63) is inserted into the first positioning hole (612) and the second positioning hole (624).

4. A roadbed tamping machine according to claim 3, characterized in that: The first disk body (611) is provided with a first empty slot (613), and the first empty slot (613) is semicircular; The second disk body (621) is provided with a second empty slot (622), and the second empty slot (622) is semicircular.

5. A roadbed tamping machine according to claim 4, characterized in that: A first support beam (614) is arranged in the first empty slot (613), and a second support beam (623) is arranged in the second empty slot (622).

6. A roadbed tamping machine according to claim 3, characterized in that: A first center hole (615) is provided at the center of the first disk body (611), and the first center hole (615) is fixedly sleeved on the main shaft (64); A second center hole (626) is provided at the center of the second disk body (621), and the second center hole (626) is rotatably sleeved on the main shaft (64).

7. A roadbed tamping machine according to claim 3, characterized in that: The side wall of the second disk body (621) is provided with a plurality of radial insertion holes (625).

8. A roadbed tamping machine according to claim 1, characterized in that: The base (1) is provided with a handle (11).

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