A tamping pick for railway engineering maintenance and its use method

Abstract

The present invention relates to the technical field of tamping picks, and in particular to a tamping pick used for railway engineering maintenance and a method for using the same. The technical solution comprises: a support plate, a radiator, a pick head, a connecting cover, and a connecting groove. A radiator is installed on one side of the outer wall of the lower end of the support plate. A connecting rod is provided on the outer wall of the lower end of the support plate. A rotating shaft is rotatably installed inside the connecting rod. Eccentric wheels are provided on the outer walls of both sides of the rotating shaft. A pick head is provided on the outer wall of the connecting rod. Fixed blocks are installed on the pick head and one side of the outer wall of the connecting rod. A connecting cover is provided on one side of the outer wall of the lower end of the connecting rod. By providing an impeller, a radiator, and a connecting cover, the service life of the pick head is improved. Coolant flows inside the pick head to absorb heat and cool the pick head, thereby extending the working life of the pick head.

Description

Technical Field

[0001] The invention relates to the technical field of tamping picks, in particular to a tamping pick used for railway engineering maintenance and a use method thereof. Background Art

[0002] Railway engineering refers to the various civil engineering facilities on railways, and also to the technologies used in all stages of railway construction (survey and design, construction, maintenance, and reconstruction). A tamping pick is a small piece of railway maintenance machinery used in railway construction and maintenance operations, primarily for tamping ballast. Based on the power source, it can be divided into electric tamping picks and internal combustion tamping picks; based on its structure, it can be divided into portable tamping picks and split tamping picks; and based on its vibration mode, it can be divided into horizontal tamping picks and vertical tamping picks.

[0003] Patent publication number CN105648853B discloses a splash lubrication structure for a tamping pick and a portable tamping pick. The pick assembly includes a sleeve, an eccentric shaft, and a pick head, with the sleeve fixedly connected to the pick head. A drive shaft is rotatably mounted within the sleeve, and the eccentric shaft is rotatably mounted within the sleeve via hollow shafts at both ends. The drive shaft includes a first end and a second end, with the second end of the drive shaft being connected to the eccentric shaft. An oil seal structure is disposed within the sleeve around the drive shaft assembly, located near the upper end of the pick assembly. The splash lubrication structure includes a hollow structure of the eccentric shaft and a gas flow channel at the first end of the drive shaft. Lubricating oil in the lower portion of the pick assembly is splashed by the rotating eccentric shaft. As the temperature of the pick assembly rises, the air pressure within the pick assembly increases, and hot air is transported outward through the body flow channel. The upward gas carries the splashed lubricating oil upward to lubricate the upper rotating components. This solves the problems of high overall failure rate and short service life of the system.

[0004] The existing technology CN105648853B dissipates heat from the pick assembly by "as the internal temperature of the pick assembly rises, the air pressure inside the pick assembly increases, and the hot air is transported outward through the axial blind hole and radial holes of the second shaft, and finally discharged through the heat dissipation holes of the lower shock absorber or the upper shock absorber via the first shaft. The splashing oil droplets are driven upward by the air to fully lubricate the rotating parts and bearings on the axial direction of the pick assembly." However, the heat dissipation effect for the pick head is still poor. When the pick head is in contact with the gravel on the railway for a long time, the temperature of the pick head will continue to rise, resulting in the need to shut down the equipment for heat dissipation after the pick head is used for a period of time, and the smoothness of the equipment is poor. Summary of the Invention

[0005] The object of the present invention is to provide a tamping pick for railway engineering maintenance and a method of using the same, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tamping pick for railway engineering maintenance, comprising a support plate, a radiator, a pick head, a connecting cover and a connecting groove, a radiator is installed on one side of the outer wall of the lower end of the support plate, a connecting rod is provided on the outer wall of the lower end of the support plate, a rotating shaft is installed inside the connecting rod, eccentric wheels are provided on the outer walls on both sides of the rotating shaft, a pick head is provided on the outer wall of the connecting rod, a fixing block is installed on the pick head and the outer wall of one side of the connecting rod, and a connecting cover is installed on one side of the outer wall of the lower end of the connecting rod.

[0007] When using a tamping pick for railway engineering maintenance and its use method in the present technical solution, the staff takes a pick head that meets the needs and makes the pick head be located on the outside of the connecting rod, and fixes the pick head with bolts and fixing blocks to ensure the position stability of the pick head on the outside of the connecting rod, the internal combustion engine body drives the rotating shaft and the eccentric wheel to rotate, thereby causing the connecting rod and the pick head to vibrate, and the staff drives the equipment to move by the handle, so that the pick head performs tamping operations on the working position, and the rotating shaft drives the impeller to rotate, thereby causing the liquid inside the pick head to enter the connecting cover through the liquid inlet pipe and be discharged through the connecting pipe, and the coolant liquid flows inside the pick head to achieve the purpose of absorbing heat and cooling the pick head, which can extend the working time of the pick head, and the cooling liquid inside the connecting pipe enters the radiator through the connecting groove and the water outlet pipe and flows through the heat sink for heat dissipation and cooling, and the fan body drives the air flow to ensure the cooling efficiency of the cooling liquid, and the cooled cooling liquid flows back to the inside of the pick head through the water inlet pipe and the connecting groove, ensuring the circulation of the cooling liquid, which can continuously cool the pick head.

[0008] Preferably, a shock absorber is provided on the outer wall of one side of the connecting rod, and the shock absorber can reduce the impact of the connecting rod on the support plate, thereby ensuring the comfort of the staff in using the equipment.

[0009] Preferably, an internal combustion engine body is installed on one side of the outer wall of the upper end of the support plate, and the internal combustion engine body is connected to the connecting rod. The internal combustion engine body can drive the connecting rod and the eccentric wheel to rotate, thereby generating vibration, driving the connecting rod and the pick head to vibrate at the same frequency;

[0010] A handle is symmetrically mounted on the outer wall of one side of the support plate, and a worker can move the entire device through the handle.

[0011] Preferably, the fixing block is provided with bolts distributed in a circular array, and the two fixing blocks are connected by the bolts, which can ensure the position stability of the pickaxe head outside the connecting rod;

[0012] The fixed block is symmetrically provided with connecting grooves, and a water inlet pipe and a water outlet pipe are respectively installed in the two connecting grooves, and the outer wall of one end of the water inlet pipe and the water outlet pipe facing away from the connecting groove is connected to the radiator. The cooling liquid inside the radiator can flow into the pickaxe head through the water inlet pipe and the connecting groove, thereby cooling the pickaxe head.

[0013] Preferably, a connecting pipe is installed on the outer wall of one side of the connecting cover, and one end of the connecting pipe is located inside the connecting groove. A sealing ring is fixed on the outer wall of the upper end of the connecting pipe. The sealing ring can ensure the sealing between the connecting pipe and the inner wall of the connecting groove, so that the liquid inside the connecting cover can enter the inside of the connecting groove through the connecting pipe.

[0014] Preferably, the rotating shaft passes through the outer wall of one end of the connecting rod and an impeller is installed thereon. The impeller is located inside the connecting cover. The rotating shaft can drive the impeller to rotate, thereby driving the coolant to flow.

[0015] Preferably, a liquid inlet pipe is plugged and installed on the outer wall of the lower end of the connecting cover, and the cooling liquid inside the pick head can enter the connecting cover through the liquid inlet pipe;

[0016] The lower end of the liquid inlet pipe is provided with filter cotton, and the filter cotton can filter the coolant liquid to ensure the cleanliness of the cooling liquid.

[0017] Preferably, the outer wall of the lower end of the connecting cover is installed with support columns distributed in a circular array, and the support columns are in contact with the lower end of the inner part of the pickaxe head, and the support columns can support the pickaxe head.

[0018] Preferably, the outer wall of the lower end of the radiator is equipped with equidistant and parallel fins, which can ensure the heat dissipation effect of the radiator and cool the cooling liquid flowing inside the radiator;

[0019] A frame is installed on the outer wall of the lower end of the radiator, and the frame is located at the lower end of the heat sink. A fan body is installed on the inner wall of the frame, and the fan body can drive air flow to improve the heat dissipation effect of the radiator.

[0020] A method for using a tamping pick for railway engineering maintenance, characterized by comprising the following steps:

[0021] Step 1: The staff takes a pickaxe that meets the needs and places the pickaxe on the outside of the connecting rod. The staff fixes the pickaxe with bolts and fixing blocks to ensure the stability of the position of the pickaxe on the outside of the connecting rod.

[0022] Step 2: The internal combustion engine body drives the rotating shaft and the eccentric wheel to rotate, thereby causing the connecting rod and the pick head to vibrate. The worker drives the equipment to move by the handle, so that the pick head performs tamping operations on the working position;

[0023] Step 3: The rotating shaft drives the impeller to rotate, so that the liquid inside the pick head enters the connecting cover through the liquid inlet pipe and is discharged through the connecting pipe. The coolant flows inside the pick head to achieve the purpose of absorbing heat and cooling the pick head, which can extend the working time of the pick head;

[0024] Step 4: The cooling liquid inside the connecting pipe flows into the radiator through the connecting groove and the outlet pipe, and dissipates heat and cools down through the heat sink. The fan body drives the air flow to ensure the cooling efficiency of the cooling liquid.

[0025] Step 5: The cooled cooling liquid flows back to the inside of the pickaxe through the water inlet pipe and the connecting groove, ensuring the circulation of the cooling liquid and continuously cooling the pickaxe.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention achieves the effect of increasing the service life of the pickaxe head by arranging an impeller, a radiator and a connecting cover, the rotating shaft drives the impeller to rotate, so that the liquid inside the pickaxe head enters the connecting cover through the liquid inlet pipe and is discharged through the connecting pipe, and the coolant liquid flows inside the pickaxe head to achieve the purpose of absorbing heat and cooling the pickaxe head, which can extend the working time of the pickaxe head, the cooling liquid inside the connecting pipe enters the radiator through the connecting groove and the water outlet pipe and flows, and dissipates heat and cools down through the heat sink, ensuring the smooth use of the equipment, and the fan body drives the air flow to ensure the cooling efficiency of the cooling liquid, and the cooled cooling liquid flows back to the inside of the pickaxe head through the water inlet pipe and the connecting groove, ensuring the circulation of the cooling liquid, and can continuously cool the pickaxe head. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic cross-sectional view of the connecting rod structure of the present invention;

[0028] Figure 2 It is a partial enlarged schematic diagram of the connecting rod structure of the present invention;

[0029] Figure 3 It is an enlarged schematic diagram of the radiator structure of the present invention;

[0030] Figure 4 It is a partially enlarged schematic diagram of the pickaxe head structure of the present invention.

[0031] In the figure: 1. Support plate; 11. Internal combustion engine body; 12. Shock absorber; 13. Connecting rod; 14. Rotating shaft; 15. Eccentric wheel; 16. Impeller; 2. Radiator; 21. Heat sink; 22. Frame; 23. Fan body; 3. Pick head; 31. Fixing block; 32. Bolt; 33. Connecting groove; 34. Water outlet pipe; 35. Water inlet pipe; 4. Connecting cover; 41. Connecting pipe; 42. Liquid inlet pipe; 43. Filter cotton; 44. Support column. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] See also Figures 1 to 4 , the present invention provides three embodiments:

[0036] Embodiment 1: A tamping pick for railway engineering maintenance and a method of using the same, comprising a support plate 1, a radiator 2, a pick head 3, a connecting cover 4 and a connecting groove 33. A radiator 2 is installed on one side of the outer wall of the lower end of the support plate 1, a connecting rod 13 is provided on the outer wall of the lower end of the support plate 1, a rotating shaft 14 is installed inside the connecting rod 13, and eccentric wheels 15 are provided on the outer walls on both sides of the rotating shaft 14. The eccentric wheel 15 means that the center of this wheel is not at the rotation point. The eccentric wheel 15 is also a kind of cam. When the eccentric wheel 15 rotates, it can generate vibration. A pick head 3 is provided on the outer wall of the connecting rod 13, and a fixing block 31 is installed on the outer wall of the pick head 3 and one side of the connecting rod 13. A connecting cover 4 is installed on one side of the outer wall of the lower end of the connecting rod 13.

[0037] A shock absorber 12 is provided on the outer wall of one side of the connecting rod 13. The shock absorber 12 can reduce the impact of the connecting rod 13 on the support plate 1, ensuring the comfort of the staff in using the equipment.

[0038] An internal combustion engine body 11 is mounted on one side of the outer wall of the upper end of the support plate 1. The internal combustion engine body 11 is connected to a connecting rod 13. The internal combustion engine body 11 can drive the connecting rod 13 and the eccentric wheel 15 to rotate, thereby generating vibrations, driving the connecting rod 13 and the pickaxe head 3 to vibrate at the same frequency.

[0039] A handle is symmetrically installed on the outer wall of one side of the support plate 1. The staff can use the handle to move the entire equipment. The internal combustion engine body 11 drives the rotating shaft 14 and the eccentric wheel 15 to rotate, thereby causing the connecting rod 13 and the pick head 3 to vibrate. The staff uses the handle to move the equipment, so that the pick head 3 performs tamping operations on the working position.

[0040] Bolts 32 distributed in a circular array are provided inside the fixing block 31. The two fixing blocks 31 are connected by the bolts 32, which can ensure the position stability of the pickaxe head 3 on the outside of the connecting rod 13. The staff takes the pickaxe head 3 that meets the needs and makes the pickaxe head 3 be located on the outside of the connecting rod 13, and fixes the pickaxe head 3 by the bolts 32 and the fixing block 31 to ensure the position stability of the pickaxe head 3 on the outside of the connecting rod 13.

[0041] Embodiment 2: A tamping pick for railway engineering maintenance and a method of using the same, comprising a support plate 1, a radiator 2, a pick head 3, a connecting cover 4 and a connecting groove 33. The radiator 2 is installed on one side of the outer wall of the lower end of the support plate 1, and a connecting rod 13 is provided on the outer wall of the lower end of the support plate 1. A rotating shaft 14 is installed inside the connecting rod 13 for rotation, and eccentric wheels 15 are provided on the outer walls on both sides of the rotating shaft 14. A pick head 3 is provided on the outer wall of the connecting rod 13, and a fixing block 31 is installed on the outer wall of the pick head 3 and one side of the connecting rod 13. A connecting cover 4 is installed on one side of the outer wall of the lower end of the connecting rod 13.

[0042] Bolts 32 arranged in a circular array are provided inside the fixing block 31. The two fixing blocks 31 are connected by the bolts 32 to ensure the stability of the position of the pickaxe head 3 outside the connecting rod 13.

[0043] The fixing block 31 is symmetrically provided with connecting grooves 33, and the two connecting grooves 33 are respectively connected with a water inlet pipe 35 and a water outlet pipe 34, and the outer wall of the water inlet pipe 35 and the water outlet pipe 34 facing away from the connecting groove 33 is connected to the radiator 2. The cooling liquid inside the radiator 2 can flow into the pickaxe head 3 through the water inlet pipe 35 and the connecting groove 33, so as to cool the pickaxe head 3.

[0044] A connecting pipe 41 is installed on the outer wall of one side of the connecting cover 4, and one end of the connecting pipe 41 is located inside the connecting groove 33. A sealing ring is fixed on the outer wall of the upper end of the connecting pipe 41. The sealing ring can ensure the sealing between the connecting pipe 41 and the inner wall of the connecting groove 33, so that the liquid inside the connecting cover 4 can enter the inside of the connecting groove 33 through the connecting pipe 41.

[0045] The rotating shaft 14 passes through the outer wall of one end of the connecting rod 13 and is equipped with an impeller 16. The impeller 16 is located inside the connecting cover 4. The rotating shaft 14 can drive the impeller 16 to rotate, thereby driving the coolant liquid to flow. The rotating shaft 14 drives the impeller 16 to rotate, so that the liquid inside the pick head 3 enters the connecting cover 4 through the liquid inlet pipe 42 and is discharged through the connecting pipe 41. The coolant liquid flows inside the pick head 3 to achieve the purpose of absorbing heat and cooling the pick head 3, which can extend the working time of the pick head 3.

[0046] Embodiment 3: A tamping pick for railway engineering maintenance and a method of using the same, comprising a support plate 1, a radiator 2, a pick head 3, a connecting cover 4 and a connecting groove 33. The radiator 2 is installed on one side of the outer wall of the lower end of the support plate 1, and a connecting rod 13 is provided on the outer wall of the lower end of the support plate 1. A rotating shaft 14 is installed inside the connecting rod 13 for rotation, and eccentric wheels 15 are provided on the outer walls on both sides of the rotating shaft 14. A pick head 3 is provided on the outer wall of the connecting rod 13, and a fixing block 31 is installed on the outer wall of the pick head 3 and one side of the connecting rod 13. A connecting cover 4 is installed on one side of the outer wall of the lower end of the connecting rod 13.

[0047] The fixed block 31 is symmetrically provided with connecting grooves 33, and a water inlet pipe 35 and a water outlet pipe 34 are respectively installed in the two connecting grooves 33, and the outer wall of the water inlet pipe 35 and the water outlet pipe 34 facing away from the connecting groove 33 is connected to the radiator 2. The cooling liquid inside the radiator 2 can flow into the pickaxe head 3 through the water inlet pipe 35 and the connecting groove 33, and can cool the pickaxe head 3. The cooled cooling liquid flows back to the inside of the pickaxe head 3 through the water inlet pipe 35 and the connecting groove 33, ensuring the circulation of the cooling liquid and continuously cooling the pickaxe head 3.

[0048] A connecting pipe 41 is installed on the outer wall of one side of the connecting cover 4, and one end of the connecting pipe 41 is located inside the connecting groove 33. A sealing ring is fixed on the outer wall of the upper end of the connecting pipe 41. The sealing ring can ensure the sealing between the connecting pipe 41 and the inner wall of the connecting groove 33, so that the liquid inside the connecting cover 4 can enter the inside of the connecting groove 33 through the connecting pipe 41.

[0049] The rotating shaft 14 passes through the outer wall of one end of the connecting rod 13 and is equipped with an impeller 16 . The impeller 16 is located inside the connecting cover 4 . The rotating shaft 14 can drive the impeller 16 to rotate, thereby driving the coolant to flow.

[0050] A liquid inlet pipe 42 is plugged into the outer wall of the lower end of the connecting cover 4, and the cooling liquid inside the pick head 3 can enter the connecting cover 4 through the liquid inlet pipe 42;

[0051] A filter cotton 43 is provided at the lower end of the liquid inlet pipe 42, and the filter cotton 43 can filter the coolant liquid to ensure the cleanliness of the coolant.

[0052] The outer wall of the lower end of the connecting cover 4 is equipped with support columns 44 distributed in a circular array. The support columns 44 are in contact with the lower end of the inside of the pick head 3, and the support columns 44 can support the pick head 3.

[0053] The outer wall of the lower end of the radiator 2 is equipped with equidistant and parallel fins 21. The fins 21 can ensure the heat dissipation effect of the radiator 2 and can cool the cooling liquid flowing inside the radiator 2.

[0054] A frame 22 is installed on the outer wall of the lower end of the radiator 2, and the frame 22 is located at the lower end of the heat sink 21. A fan body 23 is installed on the inner wall of the frame 22. As is well known to those skilled in the art, the tamping pick device of the present invention also needs to provide a fan body 23 and an internal combustion engine body 11 to enable it to work normally, and as is well known to those skilled in the art, the provision of the fan body 23 and the internal combustion engine body 11 is commonplace, and they are all conventional means or common knowledge, and will not be repeated here. Those skilled in the art can make any optional selections according to their needs or convenience. The fan body 23 can drive air flow and improve the heat dissipation effect of the radiator 2. The cooling liquid inside the connecting pipe 41 enters the radiator 2 through the connecting groove 33 and the water outlet pipe 34 and flows into the inside of the radiator, and dissipates heat and cools down through the heat sink 21, and the fan body 23 drives air flow to ensure the cooling efficiency of the cooling liquid.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A tamping pick for railway engineering maintenance, comprising a support plate (1), a radiator (2), a pick head (3), a connecting cover (4) and a connecting groove (33), characterized in that: A radiator (2) is installed on one side of the outer wall of the lower end of the support plate (1), a connecting rod (13) is provided on the outer wall of the lower end of the support plate (1), a rotating shaft (14) is rotatably installed inside the connecting rod (13), eccentric wheels (15) are provided on the outer walls of both sides of the rotating shaft (14), a pick head (3) is provided on the outer wall of the connecting rod (13), a fixing block (31) is installed on the outer wall of the pick head (3) and one side of the connecting rod (13), and a connecting cover (4) is installed on one side of the outer wall of the lower end of the connecting rod (13); the rotating shaft (14) passes through the outer wall of one end of the connecting rod (13) and is provided with an impeller (16), the impeller (16) is located inside the connecting cover (4), and the rotating shaft (14) can drive the impeller (16) to rotate, thereby driving the coolant to flow; The fixed block (31) is symmetrically provided with connecting grooves (33), and a water inlet pipe (35) and a water outlet pipe (34) are respectively installed in the two connecting grooves (33), and the outer wall of the water inlet pipe (35) and the water outlet pipe (34) facing away from the connecting groove (33) is connected to the radiator (2). A connecting pipe (41) is installed in the outer wall of one side of the connecting cover (4), and one end of the connecting pipe (41) is located in the connecting groove (33). A filter cotton (43) is provided at the lower end of the liquid inlet pipe (42), and the filter cotton (43) can filter the coolant liquid to ensure the cleanliness of the cooling liquid; a liquid inlet pipe (42) is installed in the outer wall of the lower end of the connecting cover (4), and the cooling liquid in the pickaxe head (3) can enter the connecting cover (4) through the liquid inlet pipe (42).

2. A tamping pick for railway engineering maintenance according to claim 1, characterized in that: A shock absorber (12) is provided on the outer wall of one side of the connecting rod (13); the shock absorber (12) can reduce the impact of the connecting rod (13) on the support plate (1), thereby ensuring the comfort of the staff in using the equipment.

3. The tamping pick for railway engineering maintenance according to claim 1, characterized in that: An internal combustion engine body (11) is mounted on one side of the outer wall of the upper end of the support plate (1), and the internal combustion engine body (11) is connected to the connecting rod (13). The internal combustion engine body (11) can drive the connecting rod (13) and the eccentric wheel (15) to rotate, thereby generating vibration, driving the connecting rod (13) and the pick head (3) to vibrate at the same frequency; A handle is symmetrically mounted on the outer wall of one side of the support plate (1), and a worker can use the handle to move the entire device.

4. The tamping pick for railway engineering maintenance according to claim 1, characterized in that: Bolts (32) distributed in a circular array are provided inside the fixing block (31), and the two fixing blocks (31) are connected by the bolts (32), which can ensure the position stability of the pickaxe head (3) outside the connecting rod (13); The cooling liquid inside the radiator (2) can flow into the interior of the pickaxe head (3) through the water inlet pipe (35) and the connecting groove (33), thereby cooling the pickaxe head (3).

5. The tamping pick for railway engineering maintenance according to claim 1, characterized in that: A sealing ring is fixedly attached to the outer wall of the upper end of the connecting pipe (41), and the sealing ring can ensure the sealing between the connecting pipe (41) and the inner wall of the connecting groove (33), so that the liquid inside the connecting cover (4) can enter the inside of the connecting groove (33) through the connecting pipe (41).

6. The tamping pick for railway engineering maintenance according to claim 1, characterized in that: Support columns (44) distributed in a circular array are installed on the outer wall of the lower end of the connecting cover (4), and the support columns (44) are in contact with the lower end of the inside of the pickaxe head (3), and the support columns (44) can support the pickaxe head (3).

7. The tamping pick for railway engineering maintenance according to claim 1, characterized in that: The outer wall of the lower end of the radiator (2) is provided with equidistant and parallel radiating fins (21), and the radiating fins (21) can ensure the heat dissipation effect of the radiator (2) and can cool the cooling liquid flowing inside the radiator (2); A frame (22) is installed on the outer wall of the lower end of the radiator (2), and the frame (22) is located at the lower end of the heat sink (21). A fan body (23) is installed on the inner wall of the frame (22), and the fan body (23) can drive air flow to improve the heat dissipation effect of the radiator (2).

8. A method for using a tamping pick for railway engineering maintenance according to any one of claims 1 to 7, characterized in that: The steps include: Step 1: The staff member takes a pickaxe head (3) that meets the needs, and places the pickaxe head (3) outside the connecting rod (13), and fixes the pickaxe head (3) by means of a bolt (32) and a fixing block (31), so as to ensure the stability of the position of the pickaxe head (3) outside the connecting rod (13); Step 2: The internal combustion engine body (11) drives the rotating shaft (14) and the eccentric wheel (15) to rotate, thereby causing the connecting rod (13) and the pick head (3) to vibrate, and the staff drives the equipment to move by the handle, so that the pick head (3) performs tamping operation on the working position; Step 3: The rotating shaft (14) drives the impeller (16) to rotate, so that the liquid inside the pick head (3) enters the inside of the connecting cover (4) through the liquid inlet pipe (42) and is discharged through the connecting pipe (41). The coolant liquid flows inside the pick head (3) to achieve the purpose of absorbing heat and cooling the pick head (3), which can extend the working time of the pick head (3); Step 4: The cooling liquid inside the connecting pipe (41) flows into the radiator (2) through the connecting groove (33) and the outlet pipe (34), and is cooled by the heat sink (21). The fan body (23) drives the air flow to ensure the cooling efficiency of the cooling liquid. Step 5: The cooled cooling liquid flows back to the inside of the pickaxe head (3) through the water inlet pipe (35) and the connecting groove (33), ensuring the circulation of the cooling liquid and being able to continuously cool the pickaxe head (3).

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