Tamping device capable of adjusting amplitude

Abstract

The utility model discloses an amplitude-adjustable tamping device which comprises a rack, a spline main shaft is rotatably connected in the rack, a first internal spline eccentric sleeve is sleeved at the middle end of the surface of the spline main shaft, and second internal spline eccentric sleeves are sleeved at the front side and the rear side of the surface of the spline main shaft; the surface of the first internal spline eccentric sleeve is movably connected with a single-lug frame, the surface of the second internal spline eccentric sleeve is movably connected with a double-lug frame, and the surface of the single-lug frame is movably connected with the inner wall of the double-lug frame. The tamping device has the advantage of being convenient to use, and the problems that in the using process of an existing tamping device, the vibration amplitude of the tamping device is inconvenient to adjust according to the vibration requirements of different ballasts, the flexibility of the tamping device in the using process is reduced, and the tamping device is difficult to adapt to various operation requirements are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of track maintenance, in particular to a tamping device with adjustable amplitude. Background Technique

[0002] In railway maintenance, tamping is an important task. It ensures the stability and safety of the track by compacting the ballast (crushed stones) under the track. Traditional tamping work is usually done manually, but now mechanical tamping devices are increasingly used to improve efficiency and quality. The tamping device in track maintenance is a mechanical equipment specifically used for railway track maintenance. Its main function is to compact the ballast under the track through vibration and pressure to ensure the stability and safety of the track.

[0003] The vibration of the tamping device is mainly achieved through a metal eccentric shaft. The metal eccentric shaft is installed on the frame. The eccentric vibration shaft is provided with two eccentric journal necks arranged in a 180-degree phase. One end of the clamping oil cylinder is installed at the eccentric journal neck, and the other end is hinged to the upper end of the pick arm. A tamping pick is installed at the lower end of the pick arm. The middle and upper part of the pick arm is hinged to the frame. In this way, a connecting rod type driving mechanism is formed. When the eccentric vibration main shaft rotates, the clamping oil cylinder will reciprocate under the drive of the eccentric shaft, thereby driving the end of the tamping pick to generate a swinging forced vibration. The tamping pick transmits the vibration force to the ballast, causing the ballast to vibrate and move in a more stable direction, increasing the compactness of the ballast bed.

[0004] During the use of the existing tamping device, it is not convenient to adjust the vibration amplitude of the tamping device according to the vibration requirements of different ballasts, which reduces the flexibility during the use of the tamping device and is difficult to adapt to various operation requirements. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tamping device with adjustable amplitude, which has the advantage of being easy to use, and solves the problem that during the use of the existing tamping device, it is not convenient to adjust the vibration amplitude of the tamping device according to the vibration requirements of different ballasts, reducing the flexibility during the use of the tamping device and being difficult to adapt to various operation requirements.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A tamping device with adjustable amplitude, including a frame, a spline main shaft is rotatably connected inside the frame, a first internal spline eccentric sleeve is sleeved in the middle of the surface of the spline main shaft, and second internal spline eccentric sleeves are sleeved on the front and rear sides of the surface of the spline main shaft;

[0007] A single ear bracket is movably connected to the surface of the first internal spline eccentric sleeve, a double ear bracket is movably connected to the surface of the second internal spline eccentric sleeve, the surface of the single ear bracket is movably connected to the inner wall of the double ear bracket, and the surface of the double ear bracket is movably connected to the inner wall of the frame;

[0008] A first oil cylinder is installed on the single ear mount, a second oil cylinder is installed on the double ear mount, the piston rods of the first oil cylinder and the second oil cylinder are rotatably connected with tamper arms, a mounting seat is fixedly connected to the bottom of the tamper arms, and tamper picks are fixedly installed on both the front and rear sides of the bottom of the mounting seat.

[0009] Preferably, as a tamping device with adjustable amplitude of the present invention, a rotary oil cylinder is fixedly connected to the front side of the frame, and the output shaft of the rotary oil cylinder is fixedly connected with a spline main shaft.

[0010] Preferably, as a tamping device with adjustable amplitude of the present invention, a rotating frame is rotatably connected to the inner wall of the tamper arm, and the top of the rotating frame is fixedly connected to the bottom of the frame.

[0011] Preferably, as a tamping device with adjustable amplitude of the present invention, a plurality of reinforcing ribs are fixedly connected to both the front and rear sides of the frame and the rotating frame.

[0012] Preferably, as a tamping device with adjustable amplitude of the present invention, a rotating shaft is fixedly installed on the tamper arm, and the rotating shaft is movably connected with the rotating frame.

[0013] Preferably, as a tamping device with adjustable amplitude of the present invention, mounting holes are provided at the tops of both the left and right sides of the frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The spline main shaft, the first internal spline eccentric sleeve and the second internal spline eccentric sleeve of the present invention are designed in a split type. When it is necessary to adjust the vibration amplitude, the first internal spline eccentric sleeve and the second internal spline eccentric sleeve with different eccentricities are replaced to meet the requirements of different operations and improve the flexibility of the tamping device.

[0016] 2. By setting a rotary oil cylinder, the present invention can drive the spline main shaft to rotate. The spline main shaft synchronously drives the first internal spline eccentric sleeve and the second internal spline eccentric sleeve to rotate. Since the centers of gravity of the first internal spline eccentric sleeve and the second internal spline eccentric sleeve deviate from the rotation axis, centrifugal force will be generated during the rotation process. The centrifugal force causes the first internal spline eccentric sleeve and the second internal spline eccentric sleeve to generate periodic radial displacements. The first internal spline eccentric sleeve transmits the displacement to the single ear mount to make it vibrate, and the second internal spline eccentric sleeve transmits the displacement to the double ear mount to make it vibrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Structural schematic of the present invention Figure 1 ;

[0018] Figure 2Structural Schematic of the Utility Model Figure 2 ;

[0019] Figure 3 Cross-sectional View of the Utility Model;

[0020] Figure 4 Assembly Drawing of the Spline Spindle, the First Internal Spline Eccentric Sleeve and the Second Internal Spline Eccentric Sleeve of the Utility Model;

[0021] Figure 5 Structural Schematic Diagram of the Spline Spindle of the Utility Model;

[0022] Figure 6 Structural Schematic Diagram of the First Internal Spline Eccentric Sleeve of the Utility Model;

[0023] Figure 7 Structural Schematic Diagram of the Second Internal Spline Eccentric Sleeve of the Utility Model.

[0024] In the figure: 1, frame; 2, first oil cylinder; 3, rotary oil cylinder; 4, tamper arm; 5, reinforcing rib; 6, tamper pick; 7, mounting seat; 8, rotating frame; 9, second oil cylinder; 10, spline spindle; 11, single-ear frame; 12, double-ear frame; 13, rotating shaft; 14, second internal spline eccentric sleeve; 15, first internal spline eccentric sleeve. Specific Embodiment

[0025] Please refer to Figures 1-7 , a tampering device with adjustable amplitude, including a frame 1, a spline spindle 10 is rotatably connected inside the frame 1, a first internal spline eccentric sleeve 15 is sleeved in the middle of the surface of the spline spindle 10, and second internal spline eccentric sleeves 14 are sleeved on the front and rear sides of the surface of the spline spindle 10.

[0026] Furthermore, a single-ear frame 11 is movably connected to the surface of the first internal spline eccentric sleeve 15, a double-ear frame 12 is movably connected to the surface of the second internal spline eccentric sleeve 14, the surface of the single-ear frame 11 is movably connected to the inner wall of the double-ear frame 12, and the surface of the double-ear frame 12 is movably connected to the inner wall of the frame 1.

[0027] Furthermore, a first oil cylinder 2 is installed on the single-ear frame 11, a second oil cylinder 9 is installed on the double-ear frame 12, the piston rods of the first oil cylinder 2 and the second oil cylinder 9 are rotatably connected to a tamper arm 4, a mounting seat 7 is fixedly connected to the bottom of the tamper arm 4, and tamper picks 6 are fixedly installed on the front and rear sides of the bottom of the mounting seat 7.

[0028] Furthermore, a rotary oil cylinder 3 is fixedly connected to the front side of the frame 1, and the output shaft of the rotary oil cylinder 3 is fixedly connected to the spline spindle 10.

[0029] Furthermore, a rotating frame 8 is rotatably connected to the inner wall of the tamper arm 4, and the top of the rotating frame 8 is fixedly connected to the bottom of the frame 1.

[0030] Furthermore, a rotating shaft 13 is fixedly installed on the tamper arm 4, and the rotating shaft 13 is movably connected to the rotating frame 8.

[0031] Furthermore, a number of reinforcing ribs 5 are fixedly connected to the front and rear sides of the frame 1 and the rotating frame 8. By providing the reinforcing ribs 5, the connection strength between the rotating frame 8 and the frame 1 can be increased.

[0032] Furthermore, mounting holes are provided at the tops of the left and right sides of the frame 1, and the frame 1 is mounted on the boom of the excavator platform through the mounting holes.

[0033] When tamping the ballast, the excavator platform drives the frame 1 to move downward, inserts the tamping pick 6 into the ballast to be tamped, the output shaft of the rotary oil cylinder 3 drives the spline main shaft 10 to rotate, and the spline main shaft 10 synchronously drives the first internal spline eccentric sleeve 15 and the second internal spline eccentric sleeve 14 to rotate. Since the centers of gravity of the first internal spline eccentric sleeve 15 and the second internal spline eccentric sleeve 14 deviate from the rotation axis, a centrifugal force will be generated during the rotation process. The action of the centrifugal force causes the first internal spline eccentric sleeve 15 and the second internal spline eccentric sleeve 14 to generate periodic radial displacements. The first internal spline eccentric sleeve 15 transmits the displacement to the single-ear frame 11 to make it vibrate, and the second internal spline eccentric sleeve 14 transmits the displacement to the double-ear frame 12 to make it vibrate. The vibrations of the single-ear frame 11 and the double-ear frame 12 are transmitted to the tamping pick 6 through the first oil cylinder 2, the second oil cylinder 9, the tamper arm 4 and the mounting seat 7. The tamping pick 6 vibrates inside the ballast, causing the ballast particles to rearrange and come into close contact, thereby increasing the compactness and stability of the ballast bed.

[0034] When the sleeper is on the opposite side of the tamping pick 6, the first oil cylinder 2 and the second oil cylinder 9 drive the tamper arm 4 to rotate. The tamper arm 4 rotates on the rotating frame 8 through the rotating shaft 13 to drive the mounting seat 7 and the tamping pick 6 to rotate relatively, generating a clamping force during the vibration process. Under the action of the clamping force, the ballast in the sleeper interval is extruded towards the bottom of the sleeper, making the ballast at the bottom of the sleeper more compact, improving the stability of the track, and ensuring the safety of train operation.

[0035] Since the spline main shaft 10, the first internal spline eccentric sleeve 15 and the second internal spline eccentric sleeve 14 are of a split design, when it is necessary to adjust the vibration amplitude, the first internal spline eccentric sleeve 15 and the second internal spline eccentric sleeve 14 with different eccentric amounts are replaced to meet the requirements of different operations and improve the flexibility of the tamping device.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tamping device with adjustable amplitude, comprising a frame (1), characterized in that: Inside the frame (1), a spline main shaft (10) is rotatably connected. A first internal spline eccentric sleeve (15) is sleeved on the middle part of the surface of the spline main shaft (10), and second internal spline eccentric sleeves (14) are sleeved on the front and rear sides of the surface of the spline main shaft (10). A single-ear frame (11) is movably connected to the surface of the first internal spline eccentric sleeve (15), and a double-ear frame (12) is movably connected to the surface of the second internal spline eccentric sleeve (14). The surface of the single-ear frame (11) is movably connected to the inner wall of the double-ear frame (12), and the surface of the double-ear frame (12) is movably connected to the inner wall of the frame (1). A first oil cylinder (2) is installed on the single-ear frame (11), and a second oil cylinder (9) is installed on the double-ear frame (12). The piston rods of the first oil cylinder (2) and the second oil cylinder (9) are both rotatably connected to a tamping pick arm (4). A mounting seat (7) is fixedly connected to the bottom of the tamping pick arm (4), and tamping picks (6) are fixedly installed on both the front and rear sides of the bottom of the mounting seat (7).

2. The tamping device with adjustable amplitude according to claim 1, characterized in that: A rotary oil cylinder (3) is fixedly connected to the front side of the frame (1), and the output shaft of the rotary oil cylinder (3) is fixedly connected to the spline main shaft (10).

3. The tamping device with adjustable amplitude according to claim 1, characterized in that: A rotating frame (8) is rotatably connected to the inner wall of the tamping pick arm (4), and the top of the rotating frame (8) is fixedly connected to the bottom of the frame (1).

4. The tamping device with adjustable amplitude according to claim 3, characterized in that: A number of reinforcing ribs (5) are fixedly connected to both the front and rear sides of the frame (1) and the rotating frame (8).

5. The tamping device with adjustable amplitude according to claim 4, characterized in that: A rotating shaft (13) is fixedly installed on the tamping pick arm (4), and the rotating shaft (13) is movably connected to the rotating frame (8).

6. The tamping device with adjustable amplitude according to claim 1, wherein: Mounting holes are provided at the tops of both the left and right sides of the frame (1).

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