A tamping mechanism
By optimizing the structure of the tamping mechanism and introducing a flywheel energy storage component, the problems of unsatisfactory tamping effect and bearing overheating in small and medium-sized equipment were solved, achieving efficient tamping and extended bearing life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN XIPENG INTELLIGENT INNOVATION TECHNOLOGY CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
Existing tamping mechanisms for small and medium-sized equipment have unsatisfactory tamping effects due to power and weight limitations, and the use of eccentric shafts causes bearing overheating, affecting lifespan.
Design a tamping mechanism including a transverse axis, a guide frame, a lifting seat, a rotating shaft seat, a swing seat, and a tamping pick seat. Combine a flywheel energy storage component and a vibration motor to optimize the spatial layout, enhance operational flexibility, and reduce bearing temperature through air cooling.
Improve the operating efficiency and quality of small and medium-sized tamping equipment, expand the operating range, solve the problem of adaptability in confined spaces, and extend the service life of bearings.
Smart Images

Figure CN224531359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway construction technology, specifically to a tamping mechanism for small and medium-sized equipment used in railway construction. Background Technology
[0002] Existing tamping mechanisms are categorized into small / medium-sized and large-scale equipment. Small / medium-sized equipment uses two main types: one is an internal combustion, hand-push type with a frame-assembled structure, assembled after installation on the track. This type is only suitable for track tamping, and due to power and weight limitations, the tamping effect is unsatisfactory. Another type is a functional attachment used with dual-purpose road-rail excavators, carried and powered by the excavator, requiring no on-site assembly. However, similarly, due to power and weight limitations, the tamping effect is unsatisfactory. Large-scale tamping equipment uses tamping mechanisms equipped with multiple tamping picks. While offering a wide operating range, the structure is limited and flexibility is poor. Furthermore, the tamping principle of these devices is primarily based on eccentric shaft vibration; however, the use of eccentric shafts can cause bearing overheating, and high-temperature operation affects bearing life, a common problem in the industry. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the prior art by providing a tamping mechanism.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tamping mechanism includes a transverse shaft, a movable guide frame below the transverse shaft, a movable lifting seat inside the guide frame, and rotating shaft seats connected to the lifting seats on both sides of the guide frame. A swing seat is connected to the lower part of each rotating shaft seat via a rotating shaft, and a deflectable tamping pick seat is connected to both ends of each swing seat. Multiple tamping picks are located below each tamping pick seat. A flywheel energy storage assembly is also provided on the rotating shaft seat, and the flywheel energy storage assembly is connected to the swing seat via a clamping assembly.
[0005] This tamping mechanism retains the operational functions and quality of large tamping equipment while simplifying the structure and optimizing the spatial layout, making it compatible with the use of small and medium-sized tamping equipment during railway construction. It can not only realize tamping operations on turnouts and tracks, improving operational efficiency and tamping quality, but also adapt to narrow spaces, maximizing the operational range.
[0006] Furthermore, there are two transverse axes, each with multiple transverse axis mounting seats for connecting to the main body equipment; multiple sliding sleeves are fitted onto the transverse axes, which are connected to the guide frame; a first telescopic member is also provided on one side of the transverse axis, with one end connected to the transverse axis and the other end connected to the sliding sleeve, so as to drive the sliding sleeve to move along the transverse axis.
[0007] Furthermore, the guide frame is a rectangular frame structure, and the guide frame is arranged perpendicular to a pair of transverse axes, with each end of the pair of transverse axes connected to a guide frame; the first telescopic member is also a pair, each driving one of the guide frames.
[0008] Furthermore, the guide frame is provided with multiple guide shafts, and the lifting seat is connected to the guide shafts. A vertical second telescopic member is also connected to one side of the guide frame, and the output end of the second telescopic member is connected to the lifting seat or the rotating shaft seat. The second telescopic member is arranged vertically, and its extension and retraction can drive the lifting seat to move vertically.
[0009] Furthermore, the pivot seat has a C-shaped structure, and the ends of a pair of pivot seats are respectively connected to the pivot. Each guide frame has a swing seat on both sides along its length, and a connecting plate is provided above the swing seat near the pivot seat, and the connecting plate is connected to the pivot.
[0010] Furthermore, a pair of lugs on the tamping pick base are connected to the swing seat via a swing shaft. A deflection telescopic component is also connected to one side of the tamping pick base, and the other end of the deflection telescopic component is connected to a connecting plate above the swing seat or a swing seat trunnion plate. The extension and retraction of the deflection telescopic component causes the tamping pick base to rotate around the swing shaft at a certain angle, thus deflecting the tamping pick.
[0011] Furthermore, the flywheel energy storage assembly includes an eccentric shaft rotatably connected to and passing through the lifting seat, one end of the eccentric shaft being connected to an energy storage flywheel, and the other end of the eccentric shaft being connected to a vibration motor; the energy storage flywheel is mounted on one side of one of the rotating shaft seats via a flywheel bracket, and the vibration motor is mounted on one side of the other rotating shaft seat via a motor support.
[0012] When the vibration motor rotates, it drives the eccentric shaft to rotate, and the energy storage flywheel rotates synchronously. The fan-shaped energy storage flywheel provides energy storage while also generating a certain amount of wind force, which can cool the bearings on the eccentric shaft, reduce their operating temperature, and prevent the bearings and transmission components from overheating. This not only helps to ensure work efficiency and safety, but also effectively improves the service life of the bearings.
[0013] Furthermore, the clamping assembly includes a clamping telescopic member connected to the eccentric shaft, and the swing seat is also provided with a swing seat trunnion plate, with the other end of the clamping telescopic member connected to the swing seat trunnion plate.
[0014] Furthermore, a support plate is provided on one side of the motor support, and an automatic oil replenisher is provided on the support plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. While retaining the operational functions and quality of large tamping equipment, this tamping mechanism simplifies the structure and optimizes the spatial layout, making it compatible with the use of small and medium-sized tamping equipment during railway construction. It can not only achieve tamping operations on turnouts and tracks, improving operational efficiency and tamping quality, but also adapt to confined spaces, maximizing the operational range; 2. The guide frame, located below the transverse axis, can move relative to the transverse axis, thereby adjusting the lateral position of the tamping pick seat and the tamping pick connected below it, facilitating tamping construction in different areas; the lifting seat is located within the guide frame and can move up and down relative to the guide frame to drive the rotating shaft seat forward. 1. The oscillating seat can move synchronously up and down, thereby adjusting the height of the tamping pick seat and the tamping pick connected below; 2. The oscillating seat can rotate relative to the rotating shaft seat, and the oscillating seat will rotate around the rotating shaft at a certain angle to achieve clamping of the tamping pick; the tamping pick seat can deflect relative to the oscillating seat, and will rotate around the oscillating shaft at a certain angle to achieve deflection of the tamping pick; 3. When the vibrating motor rotates, it drives the eccentric shaft to rotate, and the energy storage flywheel rotates synchronously. The fan-shaped energy storage flywheel provides energy storage and also generates a certain amount of wind force, which can cool the bearings on the eccentric shaft, reduce their operating temperature, and prevent the bearings and transmission components from overheating. This is beneficial to ensuring work efficiency and safety, and can also effectively improve the service life of the bearings. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a tamping mechanism according to the present invention; Figure 2 This is a front structural diagram of a tamping mechanism according to the present invention; Figure 3 This is a side view of the tamping mechanism of this utility model. Figure 4 This is a schematic diagram of the three-dimensional structure of the tamping mechanism of this utility model, viewed from bottom to top. In the diagram: 1. Lateral axis; 2. Guide frame; 3. Lifting seat; 4. Rotary shaft seat; 5. Swing seat; 6. Tamping pick seat; 7. Tamping pick; 8. Lateral axis mounting seat; 9. Sliding sleeve; 10. First telescopic component; 11. Guide shaft; 12. Second telescopic component; 13. Rotary shaft; 14. Connecting plate; 15. Swing seat trunnion plate; 16. Deflection telescopic component; 17. Eccentric shaft; 18. Energy storage flywheel; 19. Vibration motor; 20. Clamping telescopic component; 21. Automatic oil replenisher; 22. Swing shaft. Detailed Implementation
[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] like Figures 1-4 As shown, a tamping mechanism includes a transverse shaft 1, a movable guide frame 2 below the transverse shaft 1, a movable lifting seat 3 inside the guide frame 2, and rotating shaft seats 4 connected to the lifting seat 3 on both sides of the guide frame 2. The lower part of the rotating shaft seats 4 is connected to a swing seat 5 via a rotating shaft 13. The two ends of the swing seat 5 are respectively connected to a deflectable tamping pick seat 6. A plurality of tamping picks 7 are provided below the tamping pick seat 6. A flywheel energy storage assembly is also provided on the rotating shaft seat 4, and the flywheel energy storage assembly is connected to the swing seat 5 via a clamping assembly.
[0020] This tamping mechanism retains the operational functions and quality of large tamping equipment while simplifying the structure and optimizing the spatial layout, making it compatible with the use of small and medium-sized tamping equipment during railway construction. It can not only realize tamping operations on turnouts and tracks, improving operational efficiency and tamping quality, but also adapt to narrow spaces, maximizing the operational range.
[0021] Furthermore, by improving the flywheel energy storage component, this tamping mechanism can also solve the problem of overheating of the eccentric shaft bearing, effectively improve the operation quality of small and medium-sized tamping equipment, and significantly extend the service life of the eccentric shaft bearing.
[0022] The guide frame 2 is located below the transverse axis 1 and can move relative to the transverse axis 1, thereby adjusting the lateral position of the tamping pick seat 6 and tamping pick 7 connected and installed below it, so as to carry out tamping construction in different areas; the lifting seat 3 is located inside the guide frame 2 and can move up and down relative to the guide frame 2, so as to drive the rotating shaft seat 4 to move up and down synchronously, thereby adjusting the height position of the tamping pick seat 6 and tamping pick 7 connected and installed below it.
[0023] The swing seat 5 can rotate relative to the pivot seat 4, and the swing seat will rotate around the pivot at a certain angle to clamp the tamping pick; the tamping pick seat 6 can deflect relative to the swing seat 5, and will rotate around the swing axis at a certain angle to deflect the tamping pick.
[0024] Furthermore, there are two transverse axes 1, each with multiple transverse axis mounting seats 8 for connecting the main body equipment; multiple sliding sleeves 9 are fitted onto the transverse axis 1, and the sliding sleeves 9 are connected to the guide frame 2; a first telescopic member 10 is also provided on one side of the transverse axis 1, with one end of the first telescopic member 10 connected to the transverse axis 1 and the other end connected to the sliding sleeve 9 to drive the sliding sleeve 9 to move along the transverse axis 1.
[0025] The sliding sleeve 9 can be used to connect and install the guide frame 2 below, and also allows it to slide relative to the transverse axis 1. The first telescopic member 10 is a driving member that can drive the sliding sleeve 9 to move. The fixed end and the output end of the first telescopic member 10 are respectively provided with connecting ears. The connecting ears at the fixed end can be connected and installed on the transverse axis mounting base 8 at the middle position of the transverse axis, and the connecting ears at the output end can be connected to the sliding sleeve 9. The first telescopic member 10 is arranged parallel to one side of the transverse axis 1. With this arrangement, when the first telescopic member 10 extends, it can push the sliding sleeve outward, and when it retracts, it can pull the sliding sleeve inward.
[0026] Furthermore, the guide frame 2 is a rectangular frame structure, and the guide frame 2 is arranged perpendicular to the pair of transverse axes 1. Each end of the pair of transverse axes 1 is connected to a guide frame 2; the first telescopic member 10 is also a pair, each driving one of the guide frames 2.
[0027] For a pair of transverse axes 1, each end of the transverse axis 1 is provided with a guide frame 2, and each end of the guide frame 2 is connected to a sliding sleeve 9. In this way, a first telescopic member 10 can be used to drive a guide frame 2 to move along the pair of transverse axes 1.
[0028] Furthermore, the guide frame 2 is provided with multiple guide shafts 11, the lifting seat 3 is connected to the guide shafts 11, and a vertical second telescopic member 12 is also connected to one side of the guide frame 2. The output end of the second telescopic member 12 is connected to the lifting seat 3 or the rotating shaft seat 4.
[0029] The guide shaft 11 can connect to the lifting seat 3 and serve as a vertical guide; the second telescopic member 12 is arranged vertically, and its extension and retraction can drive the lifting seat to move vertically; the fixed part of the second telescopic member 12 is connected to the upper frame beam of the guide frame through the ear plate, and the output end of the second telescopic member 12 can be connected to the lifting seat or the rotating shaft seat through the connector. Since the lifting seat and the rotating shaft seat are also connected together, the second telescopic member can be connected to one of them. In this embodiment, it is connected to the upper part of the rotating shaft seat.
[0030] Furthermore, the pivot seat 4 has a C-shaped structure, and the ends of a pair of pivot seats 4 are respectively connected to the pivot 13. Each guide frame 2 has a swing seat 5 on both sides along its length. A connecting plate 14 is provided above the swing seat 5 near the pivot seat 4, and the connecting plate 14 is connected to the pivot 13.
[0031] For each of the guide frames 2, a pivot seat 4 is provided on both sides of its width direction. This arrangement facilitates the connection and installation of the flywheel energy storage assembly on both sides of the lifting seat 3. The two free ends of the C-shaped pivot seat 4 extend from both sides of the guide frame 2 in the length direction so as to connect the swing seat 5 on both sides of the guide frame 2 in the length direction.
[0032] Furthermore, a pair of ear plates of the tamping pick seat 6 are connected to the swing seat 5 via a swing shaft 22. A deflection telescopic member 16 is also connected to one side of the tamping pick seat 6. The other end of the deflection telescopic member 16 is connected to the connecting plate 14 above the swing seat 5 or the swing seat trunnion plate 15.
[0033] The swing seat 5 is connected to the tamping pick seat 6 on both sides via the swing shaft 22. Each tamping pick seat 6 is provided with two tamping picks 7. One end of the deflection telescopic member 16 is connected to the swing seat 5 via an trunnion, and the other end is connected to the tamping pick seat 6 via an trunnion. The extension and retraction of the deflection telescopic member 16 will cause the tamping pick seat 6 to rotate around the swing shaft 22 at a certain angle, thereby deflecting the tamping picks 7.
[0034] Since each of the swing seats 5 is connected to a pair of tamping pick seats 6, and a connecting plate 14 and a swing seat trunnion plate 15 are provided above it, the deflection telescopic members 16 on their respective sides can be connected by the connecting plate 14 and the swing seat trunnion plate 15 respectively.
[0035] Furthermore, the flywheel energy storage assembly includes an eccentric shaft 17 rotatably connected to and passing through the lifting seat 3. One end of the eccentric shaft 17 is connected to an energy storage flywheel 18, and the other end of the eccentric shaft 17 is connected to a vibration motor 19. The energy storage flywheel 18 is mounted on one side of one of the rotating shaft seats 4 via a flywheel bracket, and the vibration motor 19 is mounted on one side of the other rotating shaft seat 4 via a motor support.
[0036] One end of the eccentric shaft 17 is connected to the vibration motor 19, and the other end is connected to the energy storage flywheel 18. The middle part is fixed to the rotating shaft seat 4 by a bearing. When the vibration motor 19 rotates, it drives the eccentric shaft 17 to rotate, and the energy storage flywheel 18 rotates synchronously. The fan-shaped energy storage flywheel 18 not only provides energy storage but also generates a certain amount of wind force, which can cool the bearing on the eccentric shaft 17, reduce its operating temperature, and prevent the bearing and transmission components from overheating. This not only helps to ensure operating efficiency and safety but also effectively improves the service life of the bearing.
[0037] Furthermore, the clamping assembly includes a clamping telescopic member 20 connected to the eccentric shaft 17, and the swing seat 5 is also provided with a swing seat trunnion plate 15, with the other end of the clamping telescopic member 20 connected to the swing seat trunnion plate 15.
[0038] The clamping telescopic component 20 oscillates periodically due to the rotation of the eccentric shaft, thereby driving the swing seat 5 to transmit the excitation force. At the same time, the extension and retraction of the clamping telescopic component 20 allows the swing seat 5 to rotate around the axis of rotation at a certain angle, thus clamping the tamping pick below the tamping pick seat.
[0039] In this embodiment, the first telescopic member 10, the second telescopic member 12, the clamping telescopic member 20, and the deflection telescopic member 16 can all be in the form of telescopic hydraulic cylinders, and different models can be selected according to different installation positions; these telescopic members can also be electric telescopic members or pneumatic telescopic members.
[0040] Furthermore, a support plate is provided on one side of the motor support, and an automatic oil replenisher 21 is provided on the support plate. The automatic oil replenisher 21 is connected to the bearing of the eccentric shaft 17 through a pipeline, and can provide lubricating oil to it.
[0041] In this embodiment, eight tamping picks are installed on each of the two guide frames to achieve tamping operations on the turnouts and tracks. The tamping picks can be disassembled and assembled according to actual operational needs. Sixteen picks are used for track work, improving operational efficiency and tamping quality, while eight picks are used for turnout area work, adapting to confined spaces and maximizing the operational range. The vibration motor drives the eccentric shaft to provide tamping excitation force. The special energy storage flywheel design provides air cooling while storing energy, and with automatic oil replenishment lubrication, it can better reduce the operating temperature of the bearings at the eccentric shaft and improve the bearing service life.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tamping mechanism, characterized in that, The device includes a transverse axis, a movable guide frame below the transverse axis, a movable lifting seat inside the guide frame, and rotating shaft seats on both sides of the guide frame connected to the lifting seat. The lower part of each rotating shaft seat is connected to a swing seat via a rotating shaft, and both ends of each swing seat are connected to a deflectable tamping pick seat. Multiple tamping picks are located below each tamping pick seat. A flywheel energy storage assembly is also provided on the rotating shaft seat, and the flywheel energy storage assembly is connected to the swing seat via a clamping assembly.
2. The tamping mechanism according to claim 1, characterized in that, There are two transverse axes, each with multiple transverse axis mounting seats for connecting to the main body equipment. Multiple sliding sleeves are fitted onto the transverse axes and connected to the guide frame. A first telescopic member is also provided on one side of the transverse axis, with one end connected to the transverse axis and the other end connected to the sliding sleeve to drive the sliding sleeve to move along the transverse axis.
3. The tamping mechanism according to claim 2, characterized in that, The guide frame is a rectangular frame structure, and the guide frame is arranged perpendicular to a pair of transverse axes. Each end of the pair of transverse axes is connected to a guide frame. The first telescopic member is also a pair, each driving one of the guide frames.
4. The tamping mechanism according to claim 1, characterized in that, The guide frame is provided with multiple guide shafts, the lifting seat is connected to the guide shafts, and a vertical second telescopic member is also connected to one side of the guide frame. The output end of the second telescopic member is connected to the lifting seat or the rotating shaft seat.
5. The tamping mechanism according to claim 1, characterized in that, The pivot seat has a C-shaped structure. The ends of a pair of pivot seats are respectively connected to the pivot. Each guide frame has a swing seat on both sides along its length. A connecting plate is provided above the swing seat near the pivot seat, and the connecting plate is connected to the pivot.
6. The tamping mechanism according to claim 1, characterized in that, The pair of lugs of the tamping pick base are connected to the swing base via a swing shaft. A deflection telescopic component is also connected to one side of the tamping pick base. The other end of the deflection telescopic component is connected to the connecting plate above the swing base or the swing base lug plate.
7. The tamping mechanism according to claim 1, characterized in that, The flywheel energy storage assembly includes an eccentric shaft rotatably connected to and passing through the lifting seat. One end of the eccentric shaft is connected to an energy storage flywheel, and the other end of the eccentric shaft is connected to a vibration motor. The energy storage flywheel is mounted on one side of one of the rotating shaft seats via a flywheel bracket, and the vibration motor is mounted on one side of the other rotating shaft seat via a motor support.
8. The tamping mechanism according to claim 7, characterized in that, The clamping assembly includes a clamping telescopic member connected to the eccentric shaft, and the swing seat is also provided with a swing seat trunnion plate. The other end of the clamping telescopic member is connected to the swing seat trunnion plate.
9. The tamping mechanism according to claim 7, characterized in that, A support plate is provided on one side of the motor support, and an automatic oil replenisher is provided on the support plate.