Lithium battery tamping pickaxe

By integrating dampers and hydraulic shock absorbers into the tamping pick, the problem of operator fatigue caused by excessive vibration of the tamping pick is solved, achieving greater operational comfort and stability.

CN224173129UActive Publication Date: 2026-04-28ZHEJIANG FENGLI TOOLS MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FENGLI TOOLS MFG CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing tamping picks cause excessive vibration when the operator holds the handle, leading to operator fatigue.

Method used

The lithium-ion battery-powered tamping pick design includes a battery pack, mounting base, motor, damper, and hydraulic shock absorber. Through the combination of rubber sleeve, damper, and hydraulic shock absorber, multi-level vibration reduction is achieved to alleviate user hand fatigue.

Benefits of technology

It effectively reduces vibration during the use of tamping picks, improves operating comfort and stability, and reduces operator fatigue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lithium battery tamping pickaxe which comprises a battery pack and an assembly seat, a motor is arranged in the assembly seat, a first support and a second support which are used for being held are arranged above the battery pack, a damper is arranged below the first support and the second support, a hydraulic shock absorber is arranged below the damper, a shell is arranged below the assembly seat, and the shell is connected with the motor. An upper tamping body is arranged at the bottom of the shell, a lower tamping body is arranged at the bottom of the upper tamping body, a tamping head is arranged at the bottom of the lower tamping body, a transmission shaft is arranged in the upper tamping body, an eccentric shaft is arranged in the lower tamping body, and the eccentric shaft is arranged at the bottom of the transmission shaft. The first support and the second support are sleeved with rubber sleeves, a mounting seat is arranged on the tamping pickaxe, a damper and a hydraulic shock absorber are arranged on the mounting seat, and multi-stage shock absorption is achieved through the rubber sleeves, the damper and the hydraulic shock absorber so as to relieve hand fatigue when a user uses the tamping pickaxe.
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Description

Technical Field

[0001] This utility model relates to the field of tamping pick technology, and in particular to a lithium-ion battery tamping pick. Background Technology

[0002] Tamping is a railway track operation that uses hydraulic or electric tamping equipment to compact the ballast at the bottom of the sleepers. Tamping keeps the ballast in a compacted state, ensuring the correct horizontal and vertical alignment of the track, thereby improving track quality.

[0003] The existing tamping picks vibrate too much when the operator holds the handle, which can easily cause operator fatigue. Utility Model Content

[0004] In view of the above problems, the technical problem to be solved by this utility model is to provide a lithium-ion battery tamping pick.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a lithium-ion battery tamping pick, including a battery pack and an assembly base, wherein a motor is provided in the assembly base, characterized in that a first support and a second support for holding are provided above the battery pack, a damper is provided below the first support and the second support, a hydraulic shock absorber is provided below the damper, a housing is provided below the assembly base, an upper tamping body is provided at the bottom of the housing, a lower tamping body is provided at the bottom of the upper tamping body, a tamping head is provided at the bottom of the lower tamping body, a drive shaft is provided in the upper tamping body, an eccentric shaft is provided in the lower tamping body, and the eccentric shaft is located at the bottom of the drive shaft.

[0006] A further preferred embodiment of this utility model is: the first bracket is provided with a rubber sleeve for shock absorption.

[0007] A further preferred embodiment of this utility model is: a limit buckle is provided between the first bracket and the second bracket.

[0008] A further preferred embodiment of this utility model is as follows: the bottom of the first bracket and the second bracket are provided with mounting seats, the mounting seats are arranged around the shell, and the damper and the hydraulic shock absorber are both arranged on the mounting seats.

[0009] A further preferred embodiment of this utility model is: the mounting base includes a first mounting base, a second mounting base and a third mounting base, and the first bracket and the second bracket are disposed on the first mounting base.

[0010] A further preferred embodiment of this utility model is that the damper is disposed between the first mounting base and the second mounting base.

[0011] A further preferred embodiment of this utility model is that the hydraulic shock absorber is disposed between the second mounting base and the third mounting base.

[0012] A further preferred embodiment of this utility model is: an extension is fixedly provided on the second mounting base, and the mounting base and the motor are fixedly disposed on the extension.

[0013] Compared with the prior art, the present invention has the following advantages: the tamping pick is provided with a first support and a second support for holding, and rubber sleeves are fitted on the first support and the second support. The tamping pick is provided with a mounting base, and a damper and a hydraulic shock absorber are provided on the mounting base. Multi-level shock absorption is achieved through the rubber sleeve, damper and hydraulic shock absorber to alleviate hand fatigue when using the tamping pick. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of a tamping pick;

[0016] Figure 2 A schematic diagram of the overall structure of the shell, upper tamping body, lower tamping body and tamping head;

[0017] Figure 3 A cross-sectional view of a tamping pick;

[0018] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0019] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0020] Figure 6 for Figure 3 A magnified view of a section at point C;

[0021] Figure 7 This is a schematic diagram of the overall structure of the mounting base.

[0022] In the diagram: 1. First bracket; 2. Second bracket; 3. Fixed seat; 4. First mounting seat; 5. Second mounting seat; 6. Third mounting seat; 7. Lower tamping body; 8. Tamping head; 9. Upper tamping body; 10. Hydraulic shock absorber; 11. Damper; 12. Limit buckle; 13. Housing; 14. Rubber sleeve; 15. Battery pack; 16. Assembly seat; 17. Screw hole; 18. Drive shaft; 19. Eccentric shaft; 20. Through hole; 21. Extension. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0025] This embodiment mainly describes the lithium battery tamping pick, as follows:

[0026] like Figures 1-7 As shown, the lithium-ion battery tamping pick includes a battery pack 15 and a mounting base 16. A motor is installed inside the mounting base 16. The battery pack 15 and the motor are electrically connected. The battery pack 15 serves as a power source, providing energy for the movement of the motor.

[0027] The battery pack 15 is provided with a first bracket 1 and a second bracket 2. The first bracket 1 and the second bracket 2 are arranged alternately, so that the user can hold the first bracket 1 or the second bracket 2 to use the tamping pick to perform tamping operations when facing different operating environments.

[0028] A damper 11 is installed below the first support 1 and the second support 2. A hydraulic shock absorber 10 is installed below the damper 11. A housing 13 is installed below the mounting base 16. An upper tamping body 9 is installed at the bottom of the housing 13. A lower tamping body 7 is installed at the bottom of the upper tamping body 9. A tamping head 8 is installed at the bottom of the lower tamping body 7. A drive shaft 18 is installed on the battery pack 15. An eccentric shaft 19 is installed below the drive shaft 18. The drive shaft 18 and the eccentric shaft 19 are located inside the upper tamping body 9 and the lower tamping body 7. The battery pack 15 provides power so that the motor drives the drive shaft 18 to rotate. At the same time, the drive shaft 18 drives the eccentric shaft 19 to rotate. Due to the unbalanced weight of the eccentric shaft 19, the rotating eccentric shaft 19 generates a periodic centrifugal force. The centrifugal force is transmitted to the tamping head 8 through the bearing and the lower tamping body 7, driving the tamping head 8 to vibrate at high frequency for tamping operations.

[0029] like Figure 1 , Figure 4 As shown, in order to improve the comfort and controllability of holding, rubber sleeves 14 are fitted on the first support 1 and the second support 2. The rubber sleeves 14 have good flexibility and elasticity, which can effectively buffer the vibration felt by the operator during use, reduce the impact force on the hand, and thus reduce the operator's fatigue. For example, when the user uses a tamping pick to continuously tamp the crushed stone track bed, the tamping pick has a high vibration frequency, but the single impact energy is small. The user can relieve hand fatigue through the rubber sleeves 14.

[0030] A limit buckle 12 is installed between the first bracket 1 and the second bracket 2. Specifically, one end of the limit buckle 12 is fixed to the first bracket 1 by a screw, and the other end abuts against the second bracket 2. The limit buckle 12 restricts the relative position and distance between the two brackets, ensuring that the position of the two brackets is stable during operation, and avoiding the impact on the operator's grip stability and operation convenience due to excessive shaking of the first bracket 1 and the second bracket 2.

[0031] The first bracket 1 and the second bracket 2 are provided with a fixed base 3 at their bottom. The first bracket 1 and the second bracket 2 are installed between the fixed base 3 and the battery pack 15. Specifically, the first bracket 1 is inserted between the battery pack 15 and the fixed base 3 and is fixedly installed by a buckle. The second bracket 2 is set at the edge of the fixed base 3 and is connected and fixed by welding. The connection method of the first bracket 1 and the second bracket 2 provides a stable support foundation for users to use tamping picks for tamping operations, ensuring that the first bracket 1 and the second bracket 2 will not easily shake or shift when used by operators.

[0032] like Figure 7 As shown, the bottom of the fixed base 3 is provided with a mounting base. Specifically, the mounting base includes a first mounting base 4, a second mounting base 5, and a third mounting base 6. The first mounting base 4 is fixed on the fixed base 3 by screws and abuts against the bottom of the fixed base 3. The first mounting base 4, the second mounting base 5, and the third mounting base 6 are arranged in parallel in sequence, and a through hole 20 is opened in the middle of the first mounting base 4, the second mounting base 5, and the third mounting base 6 are arranged around the housing 13 through the through hole 20.

[0033] A damper 11 is fixedly installed between the first mounting base 4 and the second mounting base 5. When the user is performing tamping operations, the damper 11 consumes some of the vibration energy, slows down the transmission speed and amplitude of the vibration, and converts some of the vibration energy into heat energy to dissipate, thereby weakening the vibration transmitted to the operator's hand. For example, when the user is using a tamping pick to perform tamping operations, the tamping head 8 suddenly encounters hard ballast blocks, requiring the tamping pick to vibrate at a medium frequency and with a large impact force. At this time, the damper 11 can play a shock absorption role to alleviate the user's hand fatigue.

[0034] The second mounting base 5 has an extension 21 protruding outward. The mounting base 16 and the motor are fixed on the extension 21 by screws. When the tamping pick is performing tamping operations, it will generate high-frequency vibration and impact. Since the motor is located on the extension 21 and the extension 21 is between the damper 11 and the hydraulic shock absorber 10, the vibration intensity borne by the motor is weakened, resulting in a more stable working environment and ensuring the normal operation of the motor.

[0035] A hydraulic shock absorber 10 is fixedly installed between the second mounting base 5 and the third mounting base 6. The hydraulic shock absorber 10 can adaptively adjust the damping force according to the intensity and frequency of the vibration, and has a good damping effect on vibrations of different degrees. Through the synergistic effect of the damper 11 and the hydraulic shock absorber 10, the vibration transmitted to the operator's hand during the operation of the tamping pick can be effectively reduced, improving the comfort and stability of the operation. For example, when the user uses the tamping pick to perform tamping operations, when the tamping head 8 strikes the bottom of the rail or a large rock, the tamping pick vibrates at a low frequency and with a large amplitude. At this time, the combination of the damper 11 and the hydraulic shock absorber 10 greatly reduces the vibration during the tamping operation and reduces the user's hand fatigue.

[0036] like Figure 2 As shown, the housing 13 is fixedly connected to the mounting base 16, and the housing 13 is disposed through the through hole 20 in the middle of the first mounting base 4, the second mounting base 5 and the third mounting base 6. The housing 13 provides protection and installation space for internal components.

[0037] An upper tamping body 9 is provided at the bottom of the housing 13. The upper tamping body 9 is fixedly connected to the housing 13 by a threaded connection. The bottom of the upper tamping body 9 is connected to the lower tamping body 7 by a threaded connection. A screw hole 17 is provided at the connection between the upper tamping body 9 and the lower tamping body 7. After the screw hole 17 of the upper tamping body 9 and the lower tamping body 7 is passed through and tightened, the upper tamping body 9 and the lower tamping body 7 are double fixed.

[0038] The bottom of the lower tamping body 7 is equipped with a tamping head 8, which is fixed to the bottom of the lower tamping body by a threaded connection. The entire tamping work is completed by the tamping head 8. During the operation, the tamping head 8 contacts the surface of the object to be tamped, such as the rail, to carry out the tamping operation. Through the multiple shock absorption of the hydraulic shock absorber 10, the damper 11 and the rubber sleeve 14, the shock absorption needs of the user to use the tamping pick in different environments are met, and the user's hand fatigue is reduced.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are 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.

[0040] The lithium-ion tamping pick provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A lithium-ion battery tamping pick, comprising a battery pack and a mounting base, wherein a motor is disposed within the mounting base, characterized in that, The battery pack is provided with a first bracket and a second bracket for holding. A damper is provided below the first bracket and the second bracket. A hydraulic shock absorber is provided below the damper. A housing is provided below the mounting base. An upper tamping body is provided at the bottom of the housing. A lower tamping body is provided at the bottom of the upper tamping body. A tamping head is provided at the bottom of the lower tamping body. A drive shaft is provided inside the upper tamping body. An eccentric shaft is provided inside the lower tamping body, and the eccentric shaft is located at the bottom of the drive shaft.

2. The lithium-ion battery tamping pick according to claim 1, characterized in that, The first bracket is equipped with a rubber sleeve for shock absorption.

3. The lithium-ion battery tamping pick according to claim 1, characterized in that, A limit buckle is provided between the first bracket and the second bracket.

4. The lithium-ion battery tamping pick according to claim 1, characterized in that, The first bracket and the second bracket are provided with mounting bases at their bottoms. The mounting bases are arranged around the housing, and the damper and the hydraulic shock absorber are both mounted on the mounting bases.

5. The lithium-ion battery tamping pick according to claim 4, characterized in that, The mounting base includes a first mounting base, a second mounting base, and a third mounting base, with the first bracket and the second bracket disposed on the first mounting base.

6. The lithium-ion battery tamping pick according to claim 5, characterized in that, The damper is disposed between the first mounting base and the second mounting base.

7. The lithium-ion battery tamping pick according to claim 5, characterized in that, The hydraulic shock absorber is positioned between the second mounting base and the third mounting base.

8. The lithium-ion battery tamping pick according to claim 5, characterized in that, An extension is fixedly provided on the second mounting base, and the mounting base and the motor are fixedly mounted on the extension.