Hydraulic vibration rammer and control method thereof

Abstract

The present invention provides a hydraulic vibration rammer and a control method thereof. The hydraulic vibration rammer of the present invention comprises a bracket assembly, a hydraulic cylinder and a hydraulic reversing valve; the bracket assembly comprises an upper bracket, a lower bracket arranged on the upper bracket and capable of sliding relative to the upper bracket, and a buffer mechanism arranged between the upper bracket and the lower bracket; the buffer mechanism is used to buffer the force generated between the lower bracket and the upper bracket when the upper bracket and the lower bracket slide relative to each other; the hydraulic cylinder is arranged on the upper bracket, the power output end of the hydraulic cylinder is connected to the lower bracket, and the hydraulic cylinder is connected to an external hydraulic source through a hydraulic reversing valve, and under the drive of the external hydraulic source, the lower bracket can be driven to slide relative to the upper bracket. The hydraulic vibration rammer and the control method thereof described in the present invention can improve the use quality of the hydraulic vibration rammer.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration rammers, and in particular to a hydraulic vibration rammer. The present invention also relates to a control method of the 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] Before the existing hydraulic vibratory rammer works, it is necessary to check and tighten the bolts of the rubber shock-absorbing pads. When the excavator is parked, it is also necessary to prevent the arm of the excavator from dropping to avoid damage to the rubber shock-absorbing pads due to excessive weight caused by dropping the arm. There are too many restrictive conditions. In addition, when the existing hydraulic vibratory rammer is working, the rotation of the eccentric wheel can easily cause the coolant temperature to rise, which is not conducive to the use of the oil seal and easily causes the oil seal to age, affecting the service life of the hydraulic vibratory rammer, which is not conducive to improving the use quality of the hydraulic vibratory rammer. Summary of the invention

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

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A hydraulic vibration rammer comprises a bracket assembly, a hydraulic cylinder and a hydraulic reversing valve;

[0008] The bracket assembly includes an upper bracket, a lower bracket arranged on the upper bracket and capable of sliding relative to the upper bracket, and a buffer mechanism arranged between the upper bracket and the lower bracket;

[0009] The buffer mechanism is used to buffer the force generated between the lower bracket and the upper bracket when the upper bracket and the lower bracket slide relative to each other;

[0010] The hydraulic cylinder is arranged on the upper bracket, the power output end of the hydraulic cylinder is connected to the lower bracket, and the hydraulic cylinder is connected to an external hydraulic source through the hydraulic reversing valve. Under the drive of the external hydraulic source, the lower bracket can be driven to slide relative to the upper bracket.

[0011] Furthermore, the hydraulic reversing valve adopts a digital reversing valve.

[0012] Furthermore, the upper bracket includes a base plate, a mounting portion provided on the base plate, and a first connecting portion provided on the other side of the base plate relative to the mounting portion;

[0013] The hydraulic vibration rammer is mounted on an external carrier through the mounting portion;

[0014] The first connecting portion is connected to the buffer mechanism.

[0015] Further, the lower bracket includes a compacting plate, and a second connecting portion provided on the compacting plate;

[0016] The second connecting portion is connected to the buffer mechanism;

[0017] The compacting plate comprises a plate body, and both opposite ends of the plate body are provided with flanges turned upward.

[0018] Furthermore, the buffer mechanism includes a connecting column, a limiting member and an elastic member;

[0019] The lower end of the connecting column is fixed on the lower bracket, and the upper end of the connecting column passes through the upper bracket;

[0020] The stopper is assembled on the upper end of the connecting column to slide the upper bracket onto the connecting column;

[0021] The elastic member is sleeved on the connecting column, and when the upper bracket and the lower bracket are close to each other, the elastic member is compressed.

[0022] Furthermore, the elastic member is a spring.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The hydraulic vibratory rammer described in the present invention, through the cooperation of the hydraulic cylinder and the reversing valve, can drive the lower bracket to vibrate through the reciprocating motion of the hydraulic cylinder, thereby generating sufficient impact force and vibration effect, and effectively compacting the soil. Through the setting of the reversing valve, the movement speed of the hydraulic cylinder can be adjusted, thereby facilitating the adjustment of the compaction speed of the hydraulic vibratory rammer. Moreover, through the setting of the buffer mechanism, the impact force generated during the working process of the hydraulic cylinder can be effectively absorbed, thereby reducing the damage to the equipment itself caused by the vibration, extending the service life of the equipment, and facilitating improving the use quality of the hydraulic vibratory rammer.

[0025] The reversing valve is a digital reversing valve, which can accurately control the reversing frequency of the hydraulic cylinder, thereby achieving high-frequency vibration of the hydraulic vibration rammer. The digital reversing valve can provide a higher response speed, which is beneficial to improving the use quality of the hydraulic vibration rammer.

[0026] The upper bracket includes a base plate, a mounting portion and a first connecting portion, and the mounting portion and the first connecting portion are respectively arranged on both sides of the base plate, which is beneficial to improving the structural strength of the upper bracket, so that the force borne by the mounting portion and the first connecting portion can be shared on the base plate, thereby ensuring the connection strength of each of the mounting portion and the first connecting portion.

[0027] The lower bracket includes a compaction plate and a second connection part, which is connected to the buffer mechanism through the second connection part. The compaction plate compacts the soil, which is beneficial to improving the connection strength between the lower bracket and the buffer mechanism. The compaction plate includes a plate body and flanges arranged at opposite ends of the plate body. The arrangement of the flanges facilitates the soil located below the vibrating rammer to be squeezed out to both sides when the vibrating rammer compacts the soil, which is beneficial to improving the compaction effect of the vibrating rammer.

[0028] By combining the connecting column with the limiting piece, good connection strength is provided, which is beneficial to the connection between the upper bracket and the lower bracket. Through the setting of the limiting piece, the lower bracket can vibrate relative to the upper bracket, which is beneficial to the design implementation. Through the setting of the elastic piece, the impact force generated by the lower bracket and the upper bracket during the vibration process can be better absorbed, which is beneficial to improving the service life of the equipment.

[0029] The elastic member is a spring, which has a simple structure, is easy to process and assemble, and is beneficial to design implementation.

[0030] The present invention also proposes a control method for the hydraulic vibration rammer as described above, the control method comprising:

[0031] Obtain the soil type of the soil to be compacted;

[0032] According to the acquired soil type, setting parameters of the hydraulic vibration rammer are configured;

[0033] According to the set parameters, the hydraulic vibration rammer is controlled to compact and proof the soil to be compacted, and when the compaction depth of the proofing point remains unchanged, the proofing depth of the proofing point is obtained;

[0034] Determine whether the proofing depth reaches a preset depth. When the proofing depth reaches the preset depth, compact the soil to be compacted by the hydraulic vibration rammer. When the proofing depth does not reach the preset depth, adjust the set parameters of the hydraulic vibration rammer, re-proof and measure the proofing depth. After the proofing depth reaches the preset depth, compact the soil to be compacted by the hydraulic vibration rammer.

[0035] Furthermore, the set parameters include the preload pressure F applied to the hydraulic vibration rammer, the compaction frequency of the hydraulic vibration rammer f , the amplitude A of the hydraulic vibration rammer, the control pressure P of the electromagnetic proportional valve, and the switching frequency S of the reversing valve.

[0036] Furthermore, the control method further includes:

[0037] During the compaction and proofing of the soil to be compacted, when the proofing depth reaches the preset depth, obtaining the proofing and compacting speed;

[0038] Determine whether the proofing and compaction speed reaches a preset speed. When the proofing and compaction speed reaches the preset speed, compact the soil to be compacted by the hydraulic vibration rammer. When the proofing and compaction speed does not reach the preset speed, adjust the set parameters of the hydraulic vibration rammer, re-proof, and obtain the proofing and compaction speed when the proofing depth reaches the preset depth. After the proofing and compaction speed reaches the preset speed, compact the soil to be compacted by the hydraulic vibration rammer.

[0039] Furthermore, when adjusting the set parameters, the preload pressure F applied to the hydraulic vibration rammer, the compaction frequency of the hydraulic vibration rammer f The adjustment order of the amplitude A of the hydraulic vibration rammer, the flow rate L of the hydraulic source, the control pressure P of the electromagnetic proportional valve, and the switching frequency S of the hydraulic reversing valve is, in order of priority, the preload pressure F applied to the hydraulic vibration rammer, the control pressure P of the electromagnetic proportional valve, the compaction frequency of the hydraulic vibration rammer f , the flow rate L of the hydraulic source, the switching frequency S of the hydraulic reversing valve, and the amplitude A of the hydraulic vibration rammer.

[0040] The hydraulic vibration rammer control method described in the present invention helps to ensure the compaction effect of the hydraulic vibration rammer in different soil types by configuring different setting parameters according to the corresponding soil types. By comparing the proofing depth with the preset depth, it is helpful to adjust the compaction depth of the hydraulic vibration rammer so as to adjust the compaction depth of the hydraulic vibration rammer according to the compaction requirements, which helps to improve the use quality of the hydraulic vibration rammer.

[0041] By adjusting the various set parameters of the hydraulic vibration rammer, corresponding adjustments can be made to the problems generated during the compaction process of the hydraulic vibration rammer, which is beneficial to the design implementation.

[0042] According to the comparison between the proofing compaction speed and the preset speed, when rushing the work, by adjusting the proofing compaction speed to the required compaction speed, the speed of the overall compaction operation can be increased, which is beneficial to improving the use quality of the hydraulic vibratory rammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 It is a structural schematic diagram of a hydraulic vibration rammer according to an embodiment of the present invention;

[0045] Figure 2 It is a structural schematic diagram of a bracket assembly of a hydraulic vibration rammer according to an embodiment of the present invention;

[0046] Figure 3 It is a structural schematic diagram of an upper bracket of a hydraulic vibration rammer according to an embodiment of the present invention;

[0047] Figure 4 It is a structural schematic diagram of a lower bracket of a hydraulic vibration rammer according to an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the structure of the high-frequency digital reversing valve according to an embodiment of the present invention;

[0049] Figure 6 It is a flow chart of the hydraulic vibration rammer control method according to an embodiment of the present invention;

[0050] Description of reference numerals:

[0051] 1. Bracket assembly; 2. Hydraulic cylinder; 3. Hydraulic reversing valve;

[0052] 4. Upper bracket;

[0053] 401, substrate; 402, mounting portion; 403, first connecting portion;

[0054] 4021, first mounting plate; 4022, second mounting plate; 4023, reinforcing ribs; 4024, pin shaft;

[0055] 4031, first extension plate; 4032, first connection plate;

[0056] 5. Lower bracket;

[0057] 501, compacting plate; 502, second connecting portion;

[0058] 5011, plate body; 5012, flange;

[0059] 5021, second extension plate; 5022, second connection plate;

[0060] 6. Buffer mechanism;

[0061] 601, connecting column; 602, limiting member; 603, elastic member;

[0062] 7. High frequency digital reversing valve;

[0063] 701, valve body; 702, valve core;

[0064] 7011, oil inlet; 7012, oil outlet; 7013, first external interface; 7014, second external interface;

[0065] 7021, first flow channel; 7022, second flow channel. DETAILED DESCRIPTION

[0066] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0067] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0068] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0069] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0070] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0071] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0072] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0073] Embodiment 1

[0074] The present embodiment relates to a hydraulic vibration rammer, which aims to improve the use quality of the hydraulic vibration rammer by optimizing the structure of the hydraulic vibration rammer.

[0075] In terms of overall structure, Figure 1 and Figure 2 As shown, the hydraulic vibration rammer in this embodiment includes a bracket assembly 1, a hydraulic cylinder 2, and a hydraulic reversing valve 3.

[0076] Among them, the bracket assembly 1 includes an upper bracket 4, a lower bracket 5 arranged on the upper bracket 4 and capable of sliding relative to the upper bracket 4, and a buffer mechanism 6 arranged between the upper bracket 4 and the lower bracket 5. The buffer mechanism 6 is used to buffer the force generated between the lower bracket and the upper bracket when the upper bracket 4 and the lower bracket 5 slide relative to each other.

[0077] The hydraulic cylinder 2 is arranged on the upper bracket 4, the power output end of the hydraulic cylinder 2 is connected to the lower bracket 5, and the hydraulic cylinder 2 is connected to the external hydraulic source through the hydraulic reversing valve 3. Under the drive of the external hydraulic source, the lower bracket 5 can be driven to slide relative to the upper bracket 4.

[0078] As configured above, the hydraulic vibratory rammer in this embodiment, through the cooperation of the hydraulic cylinder 2 and the hydraulic reversing valve 3, can drive the lower bracket 5 to vibrate through the reciprocating motion of the hydraulic cylinder 2, thereby generating sufficient impact force and vibration effect, and effectively compacting the soil. Through the setting of the reversing valve, the movement speed of the hydraulic cylinder 2 can be adjusted, thereby facilitating the adjustment of the compaction speed of the hydraulic vibratory rammer, and through the setting of the buffer mechanism 6, the impact force generated during the working process of the hydraulic cylinder 2 can be effectively absorbed, thereby reducing the damage to the equipment itself caused by vibration, extending the service life of the equipment, and facilitating improving the use quality of the hydraulic vibratory rammer.

[0079] Specifically, in this embodiment, as an exemplary structure, the hydraulic reversing valve 3 of the hydraulic vibratory rammer in this embodiment can adopt a digital reversing valve, so that the reversing valve is a digital reversing valve, which can accurately control the reversing frequency of the hydraulic cylinder 2, thereby realizing high-frequency vibration of the hydraulic vibratory rammer, and the digital reversing valve can provide a higher response speed, which is beneficial to improving the use quality of the hydraulic vibratory rammer.

[0080] In more detail, preferably, combined with Figure 5 As shown, the hydraulic reversing valve 3 can also be a high-frequency digital reversing valve 7. The structure of the high-frequency digital reversing valve 7 can include, for example, a valve body 701 and a valve core 702 rotatably arranged in the valve body 701. The valve body 701 is provided with an oil inlet 7011, an oil outlet 7012, a first external interface 7013 and a second external interface 7014. The valve core 702 is provided with a plurality of first flow channels 7021 and a plurality of second flow channels 7022 alternately arranged along its circumference, and each first flow channel 7021 is connected to the first external interface 7013. The second flow channels 7022 are connected to the second external interface 7014, and the valve core 702 is driven to rotate relative to the valve body 701, and switches between the first connected state and the second connected state. In the first connected state, one of the first flow channels 7021 is connected to the oil inlet 7011, and one of the second flow channels 7022 is connected to the oil outlet 7012. In the second connected state, one of the second flow channels 7022 is connected to the oil inlet 7011, and one of the first flow channels 7021 is connected to the oil outlet 7012.

[0081] The support assembly 1 of the hydraulic vibration rammer in this embodiment includes an upper support 4 and a lower support 5 which are separately arranged, and a buffer mechanism 6 connected between the upper support 4 and the lower support 5 .

[0082] Specifically, combined with Figure 3 As shown, in order to improve the connection strength between the hydraulic vibration rammer and the power device, the upper bracket 4 of the hydraulic vibration rammer in this embodiment includes a base plate 401, a mounting portion 402 provided on the base plate 401, and a first connecting portion 403 provided on the other side of the base plate 401 relative to the mounting portion 402. The hydraulic vibration rammer is assembled on an external carrier through the mounting portion 402. In this embodiment, the external carrier is, for example, an excavator in an engineering vehicle. The first connecting portion 403 is connected to the buffer mechanism 6, so that the upper bracket 4 includes the base plate 401, the mounting portion 402 and the first connecting portion 403, so that the mounting portion 402 and the first connecting portion 403 are respectively arranged on both sides of the base plate 401, which is conducive to improving the structural strength of the upper bracket 4, so that the force borne by the mounting portion 402 and the first connecting portion 403 can be shared on the base plate 401, thereby ensuring the connection strength of the mounting portion 402 and the first connecting portion 403.

[0083] In more detail, the base plate 401 in this embodiment is arranged in a circular shape, and the mounting portion 402 includes a first mounting plate 4021 and a second mounting plate 4022 which are relatively arranged on the top surface of the base plate 401. In order to improve the structural strength of the first mounting plate 4021 and the second mounting plate 4022, an arched reinforcing rib 4023 is provided between the first mounting plate 4021 and the second mounting plate 4022, and a hollow is provided in the middle of the reinforcing rib 4023 to facilitate the fixing of the hydraulic cylinder 2. In order to facilitate the installation of the hydraulic vibration rammer on the power device, two pins 4024 are passed through the first mounting plate 4021 and the second mounting plate 4022. When the hydraulic vibration rammer needs to be assembled on the power device, the installation of the hydraulic vibration rammer on the power device can be completed by matching the pin 4024 with the basic adapter hole on the power device.

[0084] The first connecting portion 403 includes a first extension plate 4031 extending downward from the bottom surface of the base plate 401 and a first connecting plate 4032 extending outward from the end of the first extension plate 4031. The side of the first extension plate 4031 is formed with multiple hollows to facilitate the pipeline connection between the reversing valve and the hydraulic cylinder 2.

[0085] In order to improve the compaction effect of hydraulic vibration rammer, combined with Figure 4 As shown, the lower bracket 5 of the hydraulic vibration rammer in this embodiment includes a compaction plate 501 and a second connection portion 502 arranged on the compaction plate 501, the second connection portion 502 is connected to the buffer mechanism 6, the compaction plate 501 includes a plate body 5011, and the two opposite ends of the plate body 5011 are provided with upwardly folded flanges 5012, so that the lower bracket 5 includes the compaction plate 501 and the second connection portion 502, and the buffer mechanism 6 is connected through the second connection portion 502. The soil is compacted by the compaction plate 501, which is beneficial to improve the connection strength between the lower bracket 5 and the buffer mechanism 6, and the compaction plate 501 includes a plate body 5011 and flanges 5012 arranged at opposite ends of the plate body 5011. The setting of the flanges 5012 is beneficial to the soil located below the vibration rammer being squeezed out to both sides when the vibration rammer is compacting the soil, which is beneficial to improve the compaction effect of the vibration rammer.

[0086] In more detail, the second connection portion 502 of the lower bracket 5 in this embodiment includes a second extension plate 5021 extending upward from the compaction plate 501 , and a second connection plate 5022 extending inward from the second extension plate 5021 .

[0087] The buffer mechanism 6 of the hydraulic vibration rammer of this embodiment is connected between the upper bracket 4 and the lower bracket 5, and can absorb the impact force generated when the hydraulic vibration rammer compacts the soil, thereby increasing the service life of the hydraulic vibration rammer.

[0088] Specifically, combined with Figures 1 to 4As shown, the buffer mechanism 6 of the hydraulic vibration rammer in this embodiment includes a connecting column 601, a limit member 602 and an elastic member 603. The lower end of the connecting column 601 is fixed on the lower bracket 5, and the upper end of the connecting column 601 is arranged through the upper bracket 4. The limit member 602 is assembled on the upper end of the connecting column 601 to slide the upper bracket 4 on the connecting column 601. The elastic member 603 is sleeved on the connecting column 601. The connecting column 601 cooperates with the limit member 602 to provide good connection strength, which is beneficial to the connection between the upper bracket 4 and the lower bracket 5. Through the setting of the limit member 602, the lower bracket 5 can vibrate relative to the upper bracket 4, which is beneficial to the design implementation. Through the setting of the elastic member 603, the impact force generated by the lower bracket 5 and the upper bracket 4 during the vibration process can be better absorbed, which is beneficial to improving the service life of the equipment.

[0089] In more detail, the connecting columns 601, the limiting members 602 and the elastic members 603 of the buffer mechanism 6 in the present embodiment are multiple and arranged at intervals along the circumference of the first connecting portion 403 and the second connecting portion 502. In the present embodiment, for example, there may be four, six, eight, etc., as long as they can provide good connection strength. The lower end of each connecting column 601 is fixedly set on the second connecting plate 5022, and the upper end of each connecting column 601 passes through the second connecting plate 5022, and each connecting column 601 is provided with a thread on its upper end. The limiting member 602 includes a slot nut and a cotter pin. The slot nut is screwed on the upper end of each connecting column 601 and passes through the upper end of the connecting column 601 through the cotter pin to prevent the slot nut from detaching from the connecting column 601 due to vibration. As arranged above, the structure is simple, which is convenient for processing and assembly.

[0090] The hydraulic vibration rammer of this embodiment can achieve high-frequency vibration through the cooperation of the hydraulic cylinder 2 and the reversing valve, generate sufficient impact force and vibration effect, and effectively compact the soil. The upper bracket 4 and the lower bracket 5 have a simple structure and good structural strength and connection strength. Each structure is simple to assemble and easy to process and assemble. The buffer mechanism 6 can effectively absorb the impact force generated by the working process of the hydraulic cylinder 2, thereby reducing the damage to the equipment itself caused by vibration, extending the service life of the equipment, and helping to improve the use quality of the hydraulic vibration rammer.

[0091] Embodiment 2

[0092] This embodiment relates to a control method for a hydraulic vibration rammer. Figure 6 As shown, the hydraulic vibration rammer used to control the first embodiment includes:

[0093] Step S1, obtaining the soil type of the soil to be compacted.

[0094] Wherein, in step S1, the soil type may include, for example, sandy soil, clay, loess and other soil types, and the soil type may be obtained by on-site judgment at the construction site.

[0095] Step S2: configuring the setting parameters of the hydraulic vibration rammer according to the acquired soil type.

[0096] Among them, in step S2, the setting parameters include the preload pressure F applied to the hydraulic vibration rammer, the compaction frequency of the hydraulic vibration rammer f , the amplitude A of the hydraulic vibration rammer, the flow rate L of the hydraulic source, the control pressure P of the electromagnetic proportional valve and the switching frequency S of the reversing valve. By adjusting the set parameters of the hydraulic vibration rammer, corresponding adjustments can be made to the problems arising in the compaction process of the hydraulic vibration rammer, which is conducive to design implementation.

[0097] Step S3: According to the set parameters, the hydraulic vibration rammer is controlled to compact and proof the soil to be compacted, and when the compaction depth of the proofing point remains unchanged, the proofing depth of the proofing point is obtained.

[0098] Among them, in this step S3, compaction proofing refers to selecting a proofing point in the soil to be compacted and performing point compaction. The proofing depth is the depth of the proofing of the sample point. The proofing depth can be measured by a measuring tool after the depth of the proofing point remains unchanged.

[0099] Step S4, determine whether the proofing depth reaches the preset depth. When the proofing depth reaches the preset depth, compact the soil to be compacted by a hydraulic vibration rammer. When the proofing depth does not reach the preset depth, adjust the setting parameters of the hydraulic vibration rammer, re-proof and measure the proofing depth. After the proofing depth reaches the preset depth, compact the soil to be compacted by a hydraulic vibration rammer.

[0100] Among them, in this step S4, the preset depth is the preset depth required during construction. If the proofing depth is consistent with the preset depth, it means that the set parameters do not need to be adjusted, and proofing can be carried out according to the set parameters. If the proofing depth does not meet the preset depth, it is necessary to adjust the set parameters of the hydraulic vibration rammer according to the proofing depth, and re-proofing to ensure that the proofing depth meets the preset depth and meets the requirements during construction.

[0101] It should be noted that when multiple compaction operations are performed, the above steps are repeated for each compaction operation. If there are construction requirements for the compaction effect of the soil, multiple compaction operations will generally be performed. When performing the compaction operation, except for the first pass which needs to be performed according to steps S1-S4, the subsequent passes only need to be repeated in sequence according to steps S3 and S4.

[0102] The hydraulic vibration rammer control method of the present embodiment helps to ensure the compaction effect of the hydraulic vibration rammer in different soil types by configuring different setting parameters according to the corresponding soil types. By comparing the proofing depth with the preset depth, it helps to adjust the compaction depth of the hydraulic vibration rammer so that the compaction depth of the hydraulic vibration rammer can be adjusted according to the compaction requirements, which helps to improve the use quality of the hydraulic vibration rammer.

[0103] In addition, if there is a compaction speed requirement in actual use, the following steps are also included:

[0104] Step S5: During the compaction and proofing of the soil to be compacted, when the proofing depth reaches a preset depth, the proofing and compacting speed is obtained.

[0105] In step S5, the preset depth is the depth required for soil compaction, and the proofing and compaction speed is the speed required for compacting the soil to the preset depth.

[0106] Step S6, determine whether the proofing compaction speed reaches the preset speed. When the proofing compaction speed reaches the preset speed, compact the soil to be compacted by a hydraulic vibration rammer. When the proofing compaction speed does not reach the preset speed, adjust the set parameters of the hydraulic vibration rammer, re-proof and obtain the proofing compaction speed when the proofing depth reaches the preset depth, until the proofing compaction speed reaches the preset speed, compact the soil to be compacted by a hydraulic vibration rammer.

[0107] Among them, in step S6, the preset speed is the preset target speed required to compact the soil to the preset depth. When adjusting the setting parameters, the preload pressure F applied to the hydraulic vibration rammer, the compaction frequency of the hydraulic vibration rammer, and the pressure of the hydraulic vibration rammer are adjusted. f The adjustment order of the amplitude A of the hydraulic vibration rammer, the flow rate L of the hydraulic source, the control pressure P of the electromagnetic proportional valve and the switching frequency S of the reversing valve is as follows: the preload pressure F applied to the hydraulic vibration rammer, the control pressure P of the electromagnetic proportional valve, the compaction frequency of the hydraulic vibration rammer f , the flow rate L of the hydraulic source, the switching frequency S of the reversing valve, and the amplitude A of the hydraulic vibration rammer, until the proofing and compacting speed meets the preset speed.

[0108] Specifically, if the proofing and compaction speed meets the preset speed after adjusting the preload pressure F applied to the hydraulic vibratory rammer, the hydraulic vibratory rammer is controlled to perform compaction operation according to the adjusted preload pressure F applied to the hydraulic vibratory rammer; if it is not satisfied, the control pressure P of the electromagnetic proportional valve is continued to be adjusted; if the proofing and compaction speed meets the preset speed after adjustment, the hydraulic vibratory rammer is controlled to perform compaction operation according to the adjusted preload pressure F applied to the hydraulic vibratory rammer and the adjusted control pressure P of the electromagnetic proportional valve, and so on and so forth. The set parameters are adjusted in sequence until the proofing and compaction speed meets the preset speed; if the proofing and compaction speed still cannot meet the preset speed after all the set parameters are adjusted, the machine is stopped for troubleshooting.

[0109] Through step S5 and step S6, based on the comparison between the proofing compaction speed and the preset speed, when rushing the work, by adjusting the proofing compaction speed to the required compaction speed, the speed of the overall compaction operation can be increased, which is beneficial to improving the use quality of the hydraulic vibratory rammer.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for a hydraulic vibration rammer, characterized in that: The hydraulic vibration rammer comprises a bracket assembly (1), a hydraulic cylinder (2) and a hydraulic reversing valve (3); The bracket assembly (1) comprises an upper bracket (4), a lower bracket (5) arranged on the upper bracket (4) and capable of sliding relative to the upper bracket (4), and a buffer mechanism (6) arranged between the upper bracket (4) and the lower bracket (5); The buffer mechanism (6) is used to buffer the force generated between the lower bracket (5) and the upper bracket (4) when the upper bracket (4) and the lower bracket (5) slide relative to each other; The hydraulic cylinder (2) is arranged on the upper bracket (4), the power output end of the hydraulic cylinder (2) is connected to the lower bracket (5), and the hydraulic cylinder (2) is connected to an external hydraulic source through the hydraulic reversing valve (3), and under the drive of the external hydraulic source, the lower bracket (5) can be driven to slide relative to the upper bracket (4), and the hydraulic reversing valve (3) adopts a digital reversing valve; The control method of the hydraulic vibration rammer comprises: Obtain the soil type of the soil to be compacted; According to the acquired soil type, setting parameters of the hydraulic vibration rammer are configured; According to the set parameters, the hydraulic vibration rammer is controlled to compact and proof the soil to be compacted, and when the compaction depth of the proofing point remains unchanged, the proofing depth of the proofing point is obtained; Determine whether the proofing depth reaches a preset depth. When the proofing depth reaches the preset depth, compact the soil to be compacted by the hydraulic vibration rammer. When the proofing depth does not reach the preset depth, adjust the set parameters of the hydraulic vibration rammer, re-proof and measure the proofing depth. After the proofing depth reaches the preset depth, compact the soil to be compacted by the hydraulic vibration rammer.

2. The control method according to claim 1, characterized in that: The control method further comprises: During the compaction and proofing of the soil to be compacted, when the proofing depth reaches the preset depth, obtaining the proofing and compacting speed; Determine whether the proofing and compaction speed reaches a preset speed. When the proofing and compaction speed reaches the preset speed, compact the soil to be compacted by the hydraulic vibration rammer. When the proofing and compaction speed does not reach the preset speed, adjust the set parameters of the hydraulic vibration rammer, re-proof, and obtain the proofing and compaction speed when the proofing depth reaches the preset depth. After the proofing and compaction speed reaches the preset speed, compact the soil to be compacted by the hydraulic vibration rammer.

3. The control method according to claim 1, characterized in that: The upper bracket (4) comprises a base plate (401), a mounting portion (402) provided on the base plate (401), and a first connecting portion (403) provided on the other side of the base plate (401) relative to the mounting portion (402); The hydraulic vibration rammer is mounted on an external carrier via the mounting portion (402); The first connecting portion (403) is connected to the buffer mechanism (6).

4. The control method according to claim 3, characterized in that: The lower bracket (5) comprises a compacting plate (501) and a second connecting portion (502) provided on the compacting plate (501); The second connecting portion (502) is connected to the buffer mechanism (6); The compacting plate (501) comprises a plate body (5011), and two opposite ends of the plate body (5011) are provided with flanges (5012) that turn upwards.

5. The control method according to claim 3, characterized in that: The buffer mechanism (6) comprises a connecting column (601), a limiting member (602) and an elastic member (603); The lower end of the connecting column (601) is fixedly mounted on the lower bracket (5), and the upper end of the connecting column (601) is disposed through the upper bracket (4); The limiting member (602) is assembled on the upper end of the connecting column (601) so as to slide the upper bracket (4) onto the connecting column (601); The elastic member (603) is sleeved on the connecting column (601), and when the upper bracket (4) and the lower bracket (5) are brought closer to each other, the elastic member is compressed.

6. The control method according to claim 5, characterized in that: The elastic member (603) is a spring.

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