Hydraulic vibrating tamper

Abstract

The utility model provides a hydraulic vibrating tamper. A hydraulic cylinder and a digital reversing valve connecting the hydraulic cylinder with an external hydraulic source are arranged in the hydraulic vibrating tamper. The hydraulic cylinder is in transmission connection with a tamping structure in the hydraulic vibrating tamper and contained in a mounting space defined by the tamping structure, and the hydraulic cylinder comprises a cylinder body with an inner cavity, a sliding rod arranged in the inner cavity in a sliding mode and a separation part arranged on the sliding rod. The partition part divides the inner cavity into a first cavity and a second cavity which are not communicated with each other, and a containing cavity used for containing the top end of the sliding rod is formed in the top of the cylinder body. According to the hydraulic vibrating tamper, the vibration frequency and amplitude of the hydraulic cylinder can be adjusted conveniently, the length of the sliding stroke of the sliding rod can be increased easily, when the installation space of the tamping structure is compact, the hydraulic cylinder can still have the long sliding stroke, and the use quality of the hydraulic vibrating tamper can be improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration rammers, in particular to a hydraulic vibration rammer. Background Art

[0002] Vibratory tamping is a type of auxiliary working device of engineering machinery, which is used for compacting engineering foundations and trench backfill soil in departments such as highways, municipal administration, telecommunications, gas, water supply, and railways. It is mainly suitable for compacting materials with low cohesion and friction between particles, such as soil, river sand, gravel, and asphalt. The thickness of the vibratory tamping filling layer is large, and the compaction degree can meet the requirements of highway foundations. Vibratory tamping is an equipment equipped with excavators, which is used to compact the ground. It can compact planes, slopes, steps, grooves, pits, corners, bridge abutments, etc., and is widely used in the compaction industry.

[0003] The existing hydraulic vibration rammer of the excavator is composed of a hydraulic motor, an eccentric mechanism, a rammer plate and a rubber shock-absorbing pad. The hydraulic rammer uses the hydraulic motor to drive the eccentric mechanism to rotate. The vibration generated by the rotation acts on the rammed material through the rammer plate to make it dense.

[0004] When the existing hydraulic vibration rammer is working, the rotation of the eccentric wheel easily causes the temperature of the coolant to rise, which is not conducive to the use of the oil seal, and easily causes the oil seal to age, thus affecting the service life of the hydraulic vibration rammer. For this reason, a hydraulic cylinder is used to drive the tamping structure for tamping, but the installation space required by the existing hydraulic cylinder is large, which is not conducive to the arrangement in the narrow installation space of the tamping structure. When the hydraulic cylinder is used, the volume of the hydraulic vibration rammer is large, which is not convenient for operation, and is not conducive to improving the use quality of the hydraulic vibration rammer. Utility Model Content

[0005] In view of this, the utility model aims to provide a hydraulic vibration rammer to improve the use quality of the vibration rammer.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A hydraulic vibration rammer, wherein the hydraulic vibration rammer is provided with a hydraulic cylinder and a digital reversing valve connecting the hydraulic cylinder with an external hydraulic source;

[0008] The hydraulic cylinder is transmission-connected to the compacting structure in the hydraulic vibration rammer and is accommodated in an installation space defined by the compacting structure, and the hydraulic cylinder comprises a cylinder body having an inner cavity, a sliding rod slidably arranged in the inner cavity, and a partition portion arranged on the sliding rod;

[0009] The partition part divides the inner cavity into a first cavity and a second cavity which are not connected to each other, and the top of the cylinder body is provided with an accommodating cavity for accommodating the top end of the sliding rod.

[0010] Further, a first connection joint communicating with the first cavity is provided on the hydraulic cylinder, and a connecting pipe communicating with the second cavity is provided, and a second connection joint is provided on the connecting pipe;

[0011] The first connection joint and the second connection joint are connected to the digital reversing valve, and the first connection joint and the second connection joint are arranged side by side and on the same side of the cylinder block.

[0012] Further, a groove is provided on the outer peripheral wall of the partition portion, and a first sealing member is provided in the groove. The first sealing member protrudes outward relative to the outer peripheral wall of the partition portion and abuts against the inner wall of the inner cavity.

[0013] Further, one end of the sliding rod extends out through a through hole at the bottom of the cylinder block and is connected to the ramming structure, and a sealing portion is provided at the position of the through hole between the cylinder block and the sliding rod.

[0014] Further, the sealing portion includes a sunk groove provided on the inner wall of the through hole and a second sealing member provided in the sunk groove. The second sealing member protrudes outward relative to the inner wall of the through hole and abuts against the sliding rod.

[0015] Further, a first connection portion is provided at the top of the cylinder block. The cylinder block is connected to the upper bracket in the ramming structure through the first connection portion. A second connection portion is provided at the bottom end of the sliding rod. The sliding rod is connected to the lower bracket in the ramming structure through the second connection portion;

[0016] Wherein, the lower bracket is slidably arranged relative to the upper bracket, and a ramming portion for ramming is provided on the lower bracket.

[0017] Further, the first connection portion includes a first connection hole provided at the top of the cylinder block and a first connecting member connected in the first connection hole, and a connection through hole corresponding to the first connection hole is provided on the upper bracket, and the first connecting member passes through the connection through hole.

[0018] Further, the second connection portion includes a connecting plate connected to the bottom end of the sliding rod, a second connection hole provided on the connecting plate, and a second connecting member provided in the second connection hole. The second connecting member is connected to the lower bracket.

[0019] Compared with the prior art, the present utility model has the following advantages:

[0020] For the hydraulic vibratory rammer of the present utility model, the setting of the digital reversing valve facilitates the adjustment of the vibration frequency and amplitude of the hydraulic cylinder. Through the setting of the accommodating cavity, it is convenient to arrange the hydraulic cylinder within the installation space of the ramming structure. The accommodating cavity can accommodate the end of the sliding rod, thereby facilitating an increase in the length of the sliding stroke of the sliding rod. When the installation space of the ramming structure is relatively compact, the hydraulic cylinder can still have a relatively long sliding stroke, which is conducive to improving the usage quality of the hydraulic vibratory rammer.

[0021] In addition, arranging the first connection joint and the second connection joint side by side on the same side of the cylinder block facilitates the connection between the digital reversing valve and the hydraulic cylinder, which is conducive to arranging the hydraulic cylinder in a relatively narrow installation space, improving the utilization rate of the installation space of the ramming structure, facilitating the assembly of the hydraulic cylinder, and being conducive to design implementation. The setting of the groove facilitates the arrangement of the first seal, and through the setting of the first seal, the sealing effect between the partition part and the cylinder block is improved, and the sealing effect between the partition part and the cylinder block during sliding is also improved, which is conducive to design implementation.

[0022] Secondly, through the setting of the sealing part, it is conducive to improving the sealing effect between the end of the sliding rod extending out of the through hole and the cylinder block. The structure is simple and conducive to design implementation. The sealing part includes a sinking groove and a second seal arranged in the sinking groove, which is conducive to better improving the sealing effect of the sealing part. The setting of the sinking groove facilitates the assembly of the second seal, and the second seal better improves the sealing effect between the sliding rod and the cylinder block during sliding.

[0023] Furthermore, through the setting of the first connection part and the second connection part, it is convenient to assemble the hydraulic cylinder within the ramming structure. The cylinder block is connected to the upper support, and the sliding rod is connected to the lower support through the second connection part, which is convenient for the relative sliding between the lower support and the upper support, thereby facilitating the ramming of the ramming part and improving the usage quality of the hydraulic vibratory rammer.

[0024] In addition, the first connection part includes a first connection hole and a first connecting piece, and a connection through hole is provided on the upper support, which is convenient for the assembly between the first connection part and the upper support. The structure is simple and conducive to design implementation. The second connection part includes a connecting plate, a second connection hole arranged on the connecting plate, and a second connecting piece, which is convenient for the assembly between the second connection part and the lower support. The setting of the connecting plate can disperse the acting force between the sliding rod and the lower support, improve the connection strength between the sliding rod and the lower support, and the structure is simple and conducive to design implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0026] Figure 1Structural schematic diagram of the hydraulic vibratory rammer according to the embodiment of the present invention;

[0027] Figure 2 Structural schematic diagram of the ramming structure according to the embodiment of the present invention;

[0028] Figure 3 Structural schematic diagram of the hydraulic cylinder and the digital directional control valve according to the embodiment of the present invention;

[0029] Figure 4 Internal structural schematic diagram of the hydraulic cylinder according to the embodiment of the present invention;

[0030] Figure 5 Structural schematic diagram of the high-frequency digital directional control valve according to the embodiment of the present invention;

[0031] Explanation of reference numerals:

[0032] 1. Hydraulic cylinder;

[0033] 101. Cylinder block; 102. Slide bar; 103. Partition part; 104. Through hole; 105. Sealing part;

[0034] 1041. Groove; 1051. Counterbore;

[0035] 2. Digital directional control valve;

[0036] 3. Ramming structure;

[0037] 301. Upper bracket; 302. Lower bracket; 303. Buffer part;

[0038] 3011. Substrate; 3012. Installation part; 3013. First connection unit;

[0039] 3021. Ramming part; 3022. Second connection unit;

[0040] 4. First connection part;

[0041] 401. First connection hole; 402. First connector;

[0042] 5. Second connection part;

[0043] 501. Connection plate; 502. Second connection hole; 503. Second connector;

[0044] 6. First connection joint; 7. Connecting pipe; 8. Second connection joint;

[0045] 9. High-frequency digital directional control valve;

[0046] 901. Valve body; 902. Valve core;

[0047] 9011, Inlet port; 9012, Outlet port; 9013, First external interface; 9014, Second external interface;

[0048] 9021, First flow channel; 9022, Second flow channel;

[0049] k, Installation space; s, First cavity; t, Second cavity; a, Accommodation cavity. Detailed implementation mode

[0050] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0051] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] Taking the hydraulic vibratory rammer described in the present utility model as an example, the orientation terms such as "upper, lower, left, right, front, rear" used in the embodiments are defined based on the up-down direction (also known as the height direction), left-right direction (also known as the width direction), and front-rear direction (also known as the length direction) of the hydraulic vibratory rammer. "Inner" and "outer" are defined based on the contour of the corresponding component. For example, "inner" and "outer" defined based on the contour of the hydraulic vibratory rammer, the side close to the middle of the hydraulic vibratory rammer is "inner", and vice versa is "outer".

[0053] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0054] Next, the present utility model will be described in detail with reference to the drawings and in combination with embodiments.

[0055] Embodiment 1

[0056] This embodiment relates to a hydraulic vibratory rammer, aiming to improve the use quality of the hydraulic vibratory rammer by optimizing its structure.

[0057] In terms of overall structure, Figure 1 and Figure 4 As shown, the hydraulic vibration rammer of this embodiment is provided with a hydraulic cylinder 1 and a digital reversing valve 2 connecting the hydraulic cylinder 1 with an external hydraulic source.

[0058] The hydraulic cylinder 1 is connected to the compacting structure 3 in the hydraulic vibration rammer by transmission, and is accommodated in the installation space k defined by the compacting structure 3, and the hydraulic cylinder 1 includes a cylinder body 101 with an inner cavity, a slide bar 102 slidably arranged in the inner cavity, and a partition 103 arranged on the slide bar 102. The partition 103 divides the inner cavity into a first cavity s and a second cavity t which are not connected to each other, and a receiving cavity a for accommodating the top end of the slide bar 102 is provided at the top of the cylinder body 101.

[0059] As set up above, the vibration frequency and amplitude of the hydraulic cylinder 1 can be adjusted through the setting of the digital reversing valve 2. The setting of the accommodating chamber a facilitates the setting of the hydraulic cylinder 1 in the installation space k of the tamping structure 3. The setting of the accommodating chamber a can accommodate the end of the slide rod 102, thereby facilitating increasing the length of the sliding stroke of the slide rod 102. When the installation space k of the tamping structure 3 is relatively compact, the hydraulic cylinder 1 can still have a longer sliding stroke, thereby achieving the effect of improving the use quality of the hydraulic vibration rammer.

[0060] Based on the above overall introduction, specifically, in this embodiment, as an exemplary structure, combined with Figure 1 and Figure 2 As shown, the compacting structure 3 of the hydraulic vibration rammer in this embodiment includes an upper bracket 301, a lower bracket 302 arranged on the upper bracket 301 and capable of sliding relative to the upper bracket 301, and a buffer portion 303 arranged between the upper bracket 301 and the lower bracket 302. The buffer portion 303 is used to buffer the force between the lower bracket 302 and the upper bracket 301 when the upper bracket 301 and the lower bracket 302 slide relative to each other.

[0061] Among them, the upper bracket 301 in this embodiment includes a base plate 3011, a mounting portion 3012 arranged on the base plate 3011, and a first connecting unit 3013 arranged on the other side of the base plate 3011 relative to the mounting portion 3012. The hydraulic vibration rammer is assembled on an external carrier through the mounting portion 3012. In this embodiment, the external carrier can be, for example, an excavator in an engineering vehicle. The first connecting unit 3013 is connected to the buffer portion 303.

[0062] The lower support 302 includes a ramming part 3021 and a second connection unit 3022 provided on the ramming part 3021. The second connection unit 3022 is connected to the buffer part 303. In this embodiment, the ramming part 3021 includes a plate body and flanges provided at two opposite ends of the plate body. In this embodiment, an installation space k is formed between the first connection unit 3013 and the second connection unit 3022.

[0063] To facilitate the arrangement of the hydraulic cylinder 1 within the ramming structure 3, as shown in conjunction with Figure 1 , Figure 3 and Figure 4 , in this embodiment, a first connection part 4 is provided at the top of the cylinder block 101 of the hydraulic cylinder 1. The cylinder block 101 is connected to the upper support 301 in the ramming structure 3 through the first connection part 4. A second connection part 5 is provided at the bottom end of the slide rod 102. The slide rod 102 is connected to the lower support 302 in the ramming structure 3 through the second connection part 5. Through the settings of the first connection part 4 and the second connection part 5, it is convenient for the assembly of the hydraulic cylinder 1 within the ramming structure 3. Moreover, the cylinder block 101 is connected to the upper support 301, and the slide rod 102 is connected to the lower support 302 through the second connection part 5, which facilitates the relative sliding between the lower support 302 and the upper support 301, thereby facilitating the ramming of the ramming part 3021 and improving the usage quality of the hydraulic vibratory rammer.

[0064] Specifically, the first connection part 4 in this embodiment includes a first connection hole 401 provided at the top of the cylinder block 101 and a first connecting member 402 connected in the first connection hole 401. A connection through-hole corresponding to the first connection hole 401 is provided on the upper support 301, and the first connecting member 402 is arranged through the connection through-hole. In this embodiment, the first connecting member 402 can be, for example, a bolt. Making the first connection part 4 include the first connection hole 401 and the first connecting member 402 and the upper support 301 being provided with a connection through-hole facilitates the assembly between the first connection part 4 and the upper support 301, has a simple structure, and is conducive to design and implementation.

[0065] The second connection part 5 includes a connecting plate 501 connected to the bottom end of the slide rod 102, a second connection hole 502 provided on the connecting plate 501, and a second connecting member 503 provided in the second connection hole 502. The second connecting member 503 is connected to the lower support 302, making the second connection part 5 include the connecting plate 501, the second connection hole 502 provided on the connecting plate 501, and the second connecting member 503, which facilitates the assembly between the second connection part 5 and the lower support 302. Moreover, the setting of the connecting plate 501 can disperse the acting force between the slide rod 102 and the lower support 302, improving the connection strength between the slide rod 102 and the lower support 302, and having a simple structure, which is conducive to design and implementation.

[0066] In this embodiment, the cylinder block 101 of the hydraulic cylinder 1 is cylindrical. The bottom of the cylinder block 101 has a through hole 104 for the end of the sliding rod 102 to extend out. During the sliding stroke of the sliding rod 102 within the cylinder block 101, the top end of the sliding rod 102 can be received within the accommodation cavity a at the top of the cylinder block 101.

[0067] For the convenience of connecting the hydraulic cylinder 1 with the digital directional control valve 2, as shown in Figure 3 and Figure 4 In this embodiment, the hydraulic cylinder 1 is provided with a first connection joint 6 communicating with the first cavity s, and a connecting pipe 7 communicating with the second cavity t. A second connection joint 8 is provided on the connecting pipe 7. The first connection joint 6 and the second connection joint 8 are connected to the digital directional control valve 2, and the first connection joint 6 and the second connection joint 8 are arranged side by side and on the same side of the cylinder block 101. The arrangement of the first connection joint 6 and the second connection joint 8 side by side on the same side of the cylinder block 101 facilitates the connection between the digital directional control valve 2 and the hydraulic cylinder 1, thus facilitating the arrangement of the hydraulic cylinder 1 within a relatively narrow installation space k, improving the utilization rate of the installation space k of the ramming structure 3, and facilitating the assembly of the hydraulic cylinder 1, which is beneficial for design and implementation.

[0068] To increase the space of the first cavity s, as shown in Figure 4 In this embodiment, the end of the sliding rod 102 is stepped, and the partition portion 103 provided to cooperate with the end of the sliding rod 102 is also stepped. The bottom surface of the partition portion 103 abuts against the end of the sliding rod 102.

[0069] Specifically, to better improve the sealing effect of the hydraulic cylinder 1, a groove 1041 is provided on the outer peripheral wall of the partition portion 103. A first seal is provided within the groove 1041. In this embodiment, the first seal may be, for example, an O-ring. The first seal protrudes outward relative to the outer peripheral wall of the partition portion 103 and abuts tightly against the inner wall of the inner cavity. The provision of the groove 1041 facilitates the arrangement of the first seal, and through the provision of the first seal, the sealing effect between the partition portion 103 and the cylinder block 101 is improved, and the sealing effect between the partition portion 103 and the cylinder block 101 during sliding is also improved, which is beneficial for design and implementation.

[0070] One end of the sliding rod 102 in this embodiment extends out through the through hole 104 at the bottom of the cylinder block 101 and is connected to the plate body of the ramming structure 3. A sealing portion 105 is provided at the position of the through hole 104 between the cylinder block 101 and the sliding rod 102. Through the provision of the sealing portion 105, it is beneficial to improve the sealing effect between the end of the sliding rod 102 extending out of the through hole 104 and the cylinder block 101. The structure is simple and beneficial for design and implementation.

[0071] More specifically, the sealing portion 105 includes a sunk groove 1051 provided on the inner wall of the through hole 104, and a second sealing member provided in the sunk groove 1051. In this embodiment, the second sealing member may be, for example, an O-ring. The second sealing member protrudes outward relative to the inner wall of the through hole 104 and abuts tightly against the sliding rod 102. The sealing portion 105 including the sunk groove 1051 and the second sealing member provided in the sunk groove 1051 is conducive to better improving the sealing effect of the sealing portion 105, and the setting of the sunk groove 1051 facilitates the assembly of the second sealing member. The second sealing member better improves the sealing effect between the sliding rod 102 and the cylinder block 101 during sliding.

[0072] Preferably, in combination with Figure 5 As shown, the digital directional valve 2 in this embodiment may also be a high-frequency digital directional valve 9. The structure of the high-frequency digital directional valve 9 may include, for example, a valve body 901, and a valve core 902 rotatably provided in the valve body 901. The valve body 901 is provided with an oil inlet 9011, an oil outlet 9012, a first external interface 9013, and a second external interface 9014. On the valve core 902, a plurality of first flow channels 9021 and a plurality of second flow channels 9022 are alternately arranged along its circumferential direction, and each first flow channel 9021 communicates with the first external interface 9013, and each second flow channel 9022 communicates with the second external interface 9014. The valve core 902 is driven to be able to rotate relative to the valve body 901 and switch between a first connection state and a second connection state. And in the first connection state, one of the first flow channels 9021 communicates with the oil inlet 9011, and one of the second flow channels 9022 communicates with the oil outlet 9012. In the second connection state, one of the second flow channels 9022 communicates with the oil inlet 9011, and one of the first flow channels 9021 communicates with the oil outlet 9012.

[0073] The hydraulic vibratory rammer of this embodiment optimizes the structure of the hydraulic cylinder 1. Through the setting of the accommodating cavity a, it is convenient to set the hydraulic cylinder 1 in the installation space k of the ramming structure 3. The setting of the accommodating cavity a can accommodate the end of the sliding rod 102, thereby facilitating the increase of the sliding stroke length of the sliding rod 102. When the installation space k of the ramming structure 3 is relatively compact, the hydraulic cylinder 1 can still have a long sliding stroke, which is convenient for the layout of the hydraulic cylinder 1 in the installation space k formed between the upper support 301 and the lower support 302 of the ramming structure 3. The hydraulic cylinder 1 is connected to an external hydraulic source through the digital directional valve 2 and can drive the ramming portion 3021 to ram, improving the use quality of the hydraulic vibratory rammer.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic vibration rammer, characterized in that: The hydraulic vibration rammer is provided with a hydraulic cylinder (1) and a digital reversing valve (2) connecting the hydraulic cylinder (1) to an external hydraulic source; The hydraulic cylinder (1) is transmission-connected to the compacting structure (3) in the hydraulic vibration compactor and is accommodated in an installation space (k) defined by the compacting structure (3), and the hydraulic cylinder (1) comprises a cylinder body (101) having an inner cavity, a sliding rod (102) slidably arranged in the inner cavity, and a partition (103) arranged on the sliding rod (102); The partition (103) divides the inner cavity into a first cavity (s) and a second cavity (t) which are not connected to each other, and a receiving cavity (a) for receiving the top end of the sliding rod (102) is provided at the top of the cylinder body (101).

2. The hydraulic vibration rammer according to claim 1, characterized in that: The hydraulic cylinder (1) is provided with a first connecting joint (6) communicating with the first cavity (s), and a connecting pipe (7) communicating with the second cavity (t), and the connecting pipe (7) is provided with a second connecting joint (8); The first connecting joint (6) and the second connecting joint (8) are connected to the digital reversing valve (2), and the first connecting joint (6) and the second connecting joint (8) are arranged side by side and on the same side of the cylinder body (101).

3. The hydraulic vibration rammer according to claim 1, characterized in that: A groove (1041) is provided on the outer peripheral wall of the partition (103), and a first sealing member is provided in the groove (1041). The first sealing member protrudes outward relative to the outer peripheral wall of the partition (103) and is tightly pressed against the inner wall of the inner cavity.

4. The hydraulic vibration rammer according to claim 1, characterized in that: One end of the slide rod (102) extends out through a through hole (104) at the bottom of the cylinder body (101) and is connected to the tamping structure (3), and a sealing portion (105) located between the cylinder body (101) and the slide rod (102) is provided at the through hole (104).

5. The hydraulic vibration rammer according to claim 4, characterized in that: The sealing portion (105) comprises a recessed groove (1051) provided on the inner wall of the through hole (104), and a second sealing member provided in the recessed groove (1051), wherein the second sealing member protrudes outward relative to the inner wall of the through hole (104) and is tightly pressed against the sliding rod (102).

6. The hydraulic vibration rammer according to any one of claims 1 to 5, characterized in that: A first connection portion (4) is provided at the top of the cylinder body (101), and the cylinder body (101) is connected to an upper bracket (301) in the tamping structure (3) via the first connection portion (4); a second connection portion (5) is provided at the bottom end of the slide bar (102), and the slide bar (102) is connected to a lower bracket (302) in the tamping structure (3) via the second connection portion (5); Wherein, the lower bracket (302) is slidably arranged relative to the upper bracket (301), and a tamping portion (3021) for tamping is provided on the lower bracket (302).

7. The hydraulic vibratory rammer according to claim 6, characterized in that: The first connecting portion (4) includes a first connecting hole (401) provided at the top of the cylinder block (101), and a first connecting member (402) connected in the first connecting hole (401), and a connecting through hole corresponding to the first connecting hole (401) is provided on the upper bracket (301), and the first connecting member (402) is arranged through the connecting through hole.

8. The hydraulic vibratory rammer according to claim 6, characterized in that: The second connecting portion (5) includes a connecting plate (501) connected to the bottom end of the sliding rod (102), a second connecting hole (502) provided on the connecting plate (501), and a second connecting member (503) provided in the second connecting hole (502), and the second connecting member (503) is connected to the lower bracket (302).

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