A drill hammer

Abstract

This invention discloses a drilling and stirring vibratory compactor, comprising: a first driving component, a horizontal excitation component, a second driving component, and a drilling and stirring component connected in sequence. The first driving component drives the horizontal excitation component to generate a horizontal excitation force, and the second driving component drives the drilling and stirring component to perform cutting and stirring operations. The vibratory compactor has two operating modes: a horizontal excitation mode generated by the horizontal excitation component and a drilling and stirring guided hole-making mode generated by the drilling and stirring component. During hole-making, the combination of the horizontal excitation and drilling and stirring guided hole-making modes results in strong penetration and high hole-making efficiency. When hole-making is completed and the pile-forming stage begins, the horizontal excitation mode can be used alone, which is more conducive to efficient vibration compaction of the pile body, resulting in a better quality pile. Therefore, different modes can be selected according to the construction steps, demonstrating strong flexibility and adaptability.

Description

Technical Field

[0001] This invention relates to the field of engineering construction machinery technology, and in particular to a drilling and vibratory compactor. Background Technology

[0002] Vibro-compaction is a foundation treatment method that can improve the bearing capacity of the foundation, reduce foundation settlement, and increase foundation stability. It is widely used in foundation construction.

[0003] Among them, the vibratory compactor is the key equipment in vibratory compaction construction, and the most commonly used vibratory compactor is the electric vibratory compactor. However, since the excitation force of the vibratory compactor is horizontal when vibrating to create a hole, the penetration force is insufficient when encountering relatively hard strata during the hole-making process, resulting in low construction efficiency and even failure to successfully complete the vibratory compaction hole-making to the predetermined depth.

[0004] Therefore, how to improve the construction efficiency and flexibility of vibratory compactors is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a drilling and vibratory compactor that can effectively improve construction efficiency and flexibility.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A drilling and stirring vibratory impactor includes: a first driving component, a horizontal excitation component, a second driving component, and a drilling and stirring component connected in sequence. The first driving component is used to drive the horizontal excitation component to generate a horizontal excitation force, and the second driving component is used to drive the drilling and stirring component to perform cutting and stirring operations.

[0008] Preferably, the first drive assembly includes a first motor housing and a first motor, wherein the first motor is disposed inside the first motor housing.

[0009] Preferably, the horizontal vibration assembly includes a vibration housing, an intermediate shaft, a first clutch transition wheel, a first clutch, a power shaft bearing housing, an eccentric block, a power shaft, and a bearing. The first motor housing is connected to the vibration housing, the first motor is connected to the intermediate shaft, the clutch transition wheel is connected to the intermediate shaft via a spline, the clutch transition wheel is rigidly coaxially connected to the clutch, the power shaft is sleeved outside the intermediate shaft, the power shaft is connected to the clutch, the eccentric block is connected to the power shaft, the power shaft bearing housing is located inside the vibration housing, and the power shaft is connected to the power shaft bearing housing via a bearing.

[0010] Preferably, the second drive assembly includes a reducer housing, a second clutch transition wheel, a second clutch, a drive shaft, and a planetary reducer. The reducer housing is connected to the excitation housing. The second clutch transition wheel is connected to the intermediate shaft and coaxially connected to the second clutch. The clutch is connected to the drive shaft. The drive shaft is connected to the input end of the planetary reducer. The output end of the planetary reducer is connected to the drilling and stirring assembly.

[0011] Preferably, the drilling and churning assembly includes a drilling and churning section and a drilling and churning head. The drilling and churning section includes a drilling and churning housing, a main shaft, a main shaft bearing, a bearing cap, an oil seal, an oil seal cap, and an end seal assembly. The drilling and churning housing is connected to the reducer housing. The upper end of the main shaft is connected to the output end of the planetary reducer, and the lower end of the main shaft is connected to the drilling and churning head. The main shaft is connected to the drilling and churning housing through the main shaft bearing. The bearing cap and the end seal assembly are provided on the drilling and churning housing. The oil seal cap is provided on the main shaft and located between the bearing cap and the end seal assembly. The oil seal is located between the bearing cap and the oil seal cap.

[0012] Preferably, the first motor housing, the excitation housing, the reducer housing, and the drilling and stirring housing are provided with channels that communicate from top to bottom, and the channels are used for high-pressure water and airflow to pass through.

[0013] Preferably, the outer sides of the first motor housing, the excitation housing, the reducer housing, and the drilling and stirring housing are respectively provided with fins, and the channel is located inside the fins.

[0014] Preferably, the lower part of the drilling and stirring shell is further provided with a branch channel, which is connected to the channel inside the drilling and stirring shell and arranged at a preset angle.

[0015] Preferably, the drill bit includes a cutter head seat, a central drill seat, a first cutter head, and a second cutter head. The first cutter head is disposed on the cutter head seat, and the second cutter head is disposed on the central drill seat. The central drill seat is located below the cutter head seat, and the cutter head seat is detachably connected to the spindle.

[0016] Preferably, the second drive assembly includes a second motor housing and a second motor, the second motor being located inside the second motor housing and connected to the drilling and stirring assembly.

[0017] Compared with existing technologies, the above technical solution has the following advantages:

[0018] The present invention provides a drilling and stirring vibratory compactor, comprising: a first driving component, a horizontal excitation component, a second driving component, and a drilling and stirring component connected in sequence. The first driving component drives the horizontal excitation component to generate a horizontal excitation force, and the second driving component drives the drilling and stirring component to perform cutting and stirring operations. The drilling and stirring vibratory compactor has two operating modes: a horizontal excitation mode generated by the horizontal excitation component and a drilling and stirring guided hole-making mode generated by the drilling and stirring component. During hole-making, the combination of the horizontal excitation and drilling and stirring guided hole-making modes results in strong penetration and high hole-making efficiency. When hole-making is completed and the pile-forming stage begins, the horizontal excitation mode can be used alone, which is more conducive to efficient vibration compaction of the pile body, resulting in a better quality pile. Therefore, different modes can be selected for construction according to the needs of the construction steps, demonstrating strong flexibility and adaptability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of a drilling vibratory impactor provided in one embodiment of the present invention;

[0021] Figure 2 This is a structural schematic diagram of the damping section;

[0022] Figure 3 This is a schematic diagram of the structure of the first drive component;

[0023] Figure 4 This is a schematic diagram of the structure of the first clutch transition wheel;

[0024] Figure 5 This is a schematic diagram of the eccentric block structure;

[0025] Figure 6 This is a top view of the horizontal excitation assembly;

[0026] Figure 7 This is a schematic diagram of the drive shaft structure;

[0027] Figure 8 This is a schematic diagram of the connecting shaft.

[0028] Figure 9 This is a schematic diagram of the bearing seal assembly.

[0029] Figure 10 This is a schematic diagram of the drill bit structure;

[0030] Figure 11 This is a schematic diagram of a drilling and stirring vibratory impactor provided in another embodiment of the present invention.

[0031] The attached figures are labeled as follows:

[0032] 1 is the guide rod;

[0033] 2 is the damping section, and 21 is the first passage.

[0034] 3 is the first drive component, 31 is the first motor housing, 32 is the first motor, 33 is the fin, and 34 is the second channel;

[0035] 4 is the horizontal excitation assembly, 41 is the intermediate shaft, 42 is the first clutch transition wheel, 43 is the first clutch, 44 is the eccentric block, and 45 is the third channel.

[0036] 5 is the second drive assembly, 51 is the second clutch transition wheel, 52 is the second clutch, 53 is the drive shaft, 531 is the output end of the drive shaft, 54 is the connecting shaft, 55 is the bearing sealing assembly, 551 is the bearing end cover, 552 is the bearing support seat, 553 is the O-ring seal, 554 is the oil seal gland, 555 is the oil seal, and 556 is the drive shaft bearing.

[0037] 6 is the drilling and stirring assembly, 61 is the drilling and stirring section, 62 is the drilling and stirring head, 621 is the cutter head holder, 622 is the first cutter head, 623 is the central drill holder, and 624 is the second cutter head. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please refer to Figure 1The present invention provides a drilling and stirring vibratory compactor, comprising: a first driving component 3, a horizontal excitation component 4, a second driving component 5, and a drilling and stirring component 6 connected in sequence. The first driving component 3 drives the horizontal excitation component 4 to generate a horizontal excitation force, and the second driving component 5 drives the drilling and stirring component 6 to perform cutting and stirring operations. The drilling and stirring vibratory compactor has two operating modes: a horizontal excitation mode generated by the horizontal excitation component 4 and a drilling and stirring guided hole-making mode generated by the drilling and stirring component 6. During hole-making operations, the combination of the horizontal excitation and drilling and stirring guided hole-making modes results in strong penetration and high hole-making efficiency. When hole-making is completed and the pile-forming stage begins, the horizontal excitation mode can be used alone, which is more conducive to efficient vibration compaction of the pile body, resulting in a better quality pile. Therefore, different modes can be selected for construction according to the needs of the construction steps, demonstrating strong flexibility and adaptability.

[0040] In some embodiments, such as Figure 1 and Figure 2 As shown, the drill-stirring vibratory compactor also includes a guide rod 1 and a damping section 2. The lower end of the guide rod 1 is fixedly connected to the damping section 2, for example, by using bolts or other fasteners for a coaxial rigid connection. The damping section 2 mainly functions to dampen vibrations, preventing the excitation force from being transmitted upwards to the guide rod 1. Figure 3 As shown, the first drive assembly 3 includes a first motor housing 31 and a first motor 32. The first motor 32 is disposed inside the first motor housing 31. The first motor 32 can be rigidly connected to the first motor housing 31 coaxially using fasteners such as bolts. The upper end of the first motor housing 31 and the lower end of the shock-absorbing section 2 can be rigidly connected coaxially using fasteners such as bolts.

[0041] In some embodiments, such as Figures 4-6As shown, the horizontal vibration assembly 4 includes a vibration housing, an intermediate shaft 41, a first clutch transition wheel 42, a first clutch 43, a power shaft bearing seat, an eccentric block 44, a power shaft, and bearings. The first motor housing 31 is connected to the vibration housing, the first motor 32 is connected to the intermediate shaft 41, the first clutch transition wheel 42 is connected to the intermediate shaft 41 via a spline, the first clutch transition wheel 42 and the first clutch 43 are coaxially rigidly connected, the power shaft has a hollow structure in the middle, the power shaft is sleeved outside the intermediate shaft 41, the power shaft is connected to the first clutch 43, the power shaft and the intermediate shaft 41 can rotate around their respective axes, the eccentric block 44 is connected to the power shaft, specifically multiple eccentric blocks 44 of the same phase and axial arrangement can be connected to the power shaft, the eccentric block 44 and the power shaft can be connected by a key or other means, the power shaft bearing seat is located inside the vibration housing, the power shaft is connected to the power shaft bearing seat via bearings, and the lower end of the intermediate shaft 41 is connected to the second drive assembly 5. The first motor 32 transmits torque to the intermediate shaft 41 and then to the second drive assembly 5. Simultaneously, the intermediate shaft 41 transmits torque to the first clutch 43 via the first clutch transition wheel 42. When the first clutch 43 is engaged, it continues to transmit torque to the power shaft, causing the eccentric blocks 44 to rotate along the shaft, generating a horizontal excitation force. The more eccentric blocks 44 there are, the greater the horizontal excitation force. When the first clutch 43 is disengaged, the torque of the intermediate shaft 41 is not transmitted to the power shaft through the first clutch 43. At this time, the eccentric blocks 44 are stationary, and no horizontal excitation force is generated. Since the intermediate shaft 41 and the power shaft can rotate independently without affecting each other, whether the first clutch 43 is engaged or disengaged will not affect the transmission of torque from the intermediate shaft 41 to the second drive assembly 5. This achieves the effect of controlling the presence or absence of horizontal excitation force by controlling the engagement or disengagement of the first clutch 43.

[0042] In some embodiments, such as Figure 1 , Figures 7-9As shown, the second drive assembly 5 includes a reducer housing, a second clutch transition wheel 51, a second clutch 52, a drive shaft 53, and a planetary reducer. The reducer housing is connected to the excitation housing, for example, by using bolts or other fasteners for a coaxial rigid connection. The second clutch transition wheel 51 is connected to the intermediate shaft 41, specifically by a spline connection. The second clutch transition wheel 51 is coaxially connected to the second clutch 52. The clutch is connected to the drive shaft 53, specifically by a key connection. The drive shaft 53 is connected inside the reducer housing via a bearing seal assembly 55. The bearing seal assembly 55 includes a bearing end cover 551, a bearing support seat 552, an O-ring seal 553, an oil seal gland 554, an oil seal 555, and a drive shaft bearing 556. The bearing seal assembly 55 is rigidly connected coaxially to the reducer housing via bolts or other fasteners. The planetary reducer includes a first planetary reducer, a connecting shaft 54, and a second planetary reducer. The output end 531 of the drive shaft is connected to the first planetary reducer, which is connected to the second planetary reducer via the connecting shaft 54. The output end of the second planetary reducer is connected to the drilling and stirring assembly 6. The output end 531 of the drive shaft passes through the bearing seal assembly 55 and connects to the input end of the planetary reducer. The working principle of the second drive assembly 5 is as follows: the intermediate shaft 41 transmits the torque of the first motor 32 to the second clutch 52 via the second clutch transition wheel 51. When the second clutch 52 is closed, it continues to transmit torque to the drive shaft 53, which is then reduced in speed by the first and second planetary reducers before finally being transmitted to the drilling and stirring assembly 6. When the second clutch 52 is disengaged, it stops transmitting torque to the drive shaft 53.

[0043] In some embodiments, such as Figure 10 As shown, the drilling and stirring assembly 6 includes a drilling and stirring section 61 and a drilling and stirring head 62. The drilling and stirring section 61 includes a drilling and stirring housing, a spindle, a spindle bearing, a bearing cap, an oil seal, an oil seal cap, and an end seal assembly. The drilling and stirring housing is connected to the reducer housing. The upper end of the spindle is connected to the planetary reducer. For example, a spindle spline can be provided at the upper end of the spindle. The spindle spline is coaxially connected to the output end of the planetary reducer. The lower end of the spindle is connected to the drilling and stirring head 62. The planetary reducer transmits torque to the spindle, which then transmits it to the drilling and stirring head 62. The spindle is connected to the drilling and stirring housing through the spindle bearing. The bearing cap and the end seal assembly are provided on the drilling and stirring housing. The oil seal cap is provided on the spindle and is located between the bearing cap and the end seal assembly. The oil seal is located between the bearing cap and the oil seal cap. The bearing cap and the drill housing are rigidly connected coaxially via bolts or other fasteners. One end face of the bearing cap has a boss. An oil seal is located between the bearing cap and the main shaft, and the oil seal cap is rigidly connected coaxially to the main shaft via bolts or other fasteners. One end face of the oil seal cap has a groove. The boss and groove form a labyrinth seal, preventing gear oil leakage. The end sealing assembly includes a flange seat, an oil seal crimp cap, felt, an O-ring, and an oil seal component. The function of the end sealing assembly is to prevent external water and sediment from entering the vibratory compactor.

[0044] In some embodiments, the first motor housing 31, the excitation housing, the reducer housing, and the drilling and stirring housing are provided with channels that connect from top to bottom. Additionally, a channel is also provided within the damping section 2 for the passage of high-pressure water and airflow. For ease of distinction, the channel on the damping section 2 is designated as the first channel 21, the channel on the first motor housing 31 as the second channel 34, the channel on the excitation housing as the third channel 45, the channel on the reducer housing as the fourth channel, and the channel on the drilling and stirring housing as the fifth channel. The outer sides of the first motor housing 31, the excitation housing, the reducer housing, and the drilling and stirring housing are each provided with fins 33, and the channels are located within the fins 33. The number of fins 33 can be selected according to actual needs. Furthermore, the lower part of the drilling and stirring housing is also provided with a branch channel, which communicates with the channel within the drilling and stirring housing and is arranged at a predetermined angle. Figure 1 As shown, the main channel is set vertically, while the branch channels are set outwards and at an angle.

[0045] In some embodiments, the drill chuck 62 includes a cutter head seat 621, a central drill seat 623, a first cutter head 622, and a second cutter head 624. The first cutter head 622 is mounted on the cutter head seat 621, and the second cutter head 624 is mounted on the central drill seat 623. The central drill seat 623 is located below the cutter head seat 621, and the cutter head seat 621 is detachably connected to the spindle. The first cutter head 622 and the second cutter head 624 can perform cutting and stirring of the surrounding clay layers and medium-coarse gravelly sand layers. Different drill chuck heads 62 can be replaced according to different geological conditions and construction requirements.

[0046] In some embodiments, such as Figure 11 As shown, the second drive assembly 5 includes a second motor housing and a second motor. The second motor is located inside the second motor housing and is connected to the drilling and stirring assembly 6. That is, the torque of the horizontal vibration assembly 4 and the stirring assembly is provided by different power sources, which can avoid the mutual interference between the two.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The above provides a detailed description of the drilling and vibratory impactor provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A drilling and stirring vibratory impactor, characterized in that, include: The first drive assembly, the horizontal excitation assembly, the second drive assembly, and the drilling and stirring assembly are connected in sequence. The first drive assembly is used to drive the horizontal excitation assembly to generate a horizontal excitation force, and the second drive assembly is used to drive the drilling and stirring assembly to perform cutting and stirring operations. The first drive assembly includes a first motor housing and a first motor, wherein the first motor is disposed inside the first motor housing; The horizontal vibration assembly includes a vibration housing, an intermediate shaft, a first clutch transition wheel, a first clutch, a power shaft bearing housing, an eccentric block, a power shaft, and a bearing. The first motor housing is connected to the vibration housing, the first motor is connected to the intermediate shaft, the first clutch transition wheel is connected to the intermediate shaft via a spline, the first clutch transition wheel is rigidly coaxially connected to the first clutch, the power shaft is sleeved outside the intermediate shaft, the power shaft is connected to the first clutch, the eccentric block is connected to the power shaft, the power shaft bearing housing is located inside the vibration housing, and the power shaft is connected to the power shaft bearing housing via a bearing. The second drive assembly includes a reducer housing, a second clutch transition wheel, a second clutch, a drive shaft, and a planetary reducer. The reducer housing is connected to the excitation housing. The second clutch transition wheel is connected to the intermediate shaft and coaxially connected to the second clutch. The second clutch is connected to the drive shaft. The drive shaft is connected to the input end of the planetary reducer. The output end of the planetary reducer is connected to the drilling and stirring assembly. The drilling and churning assembly includes a drilling and churning section and a drilling and churning head. The drilling and churning section includes a drilling and churning housing, a main shaft, a main shaft bearing, a bearing cap, an oil seal, an oil seal cap, and an end seal assembly. The drilling and churning housing is connected to the reducer housing. The upper end of the main shaft is connected to the output end of the planetary reducer, and the lower end of the main shaft is connected to the drilling and churning head. The main shaft is connected to the drilling and churning housing through the main shaft bearing. The bearing cap and the end seal assembly are disposed on the drilling and churning housing. The oil seal cap is disposed on the main shaft and located between the bearing cap and the end seal assembly. The oil seal is located between the bearing cap and the oil seal cap.

2. The drilling vibratory impactor according to claim 1, characterized in that, The first motor housing, the excitation housing, the reducer housing, and the drilling and stirring housing are provided with channels that connect from top to bottom, and the channels are used for high-pressure water and airflow to pass through.

3. The drilling vibratory impactor according to claim 2, characterized in that, The outer sides of the first motor housing, the excitation housing, the reducer housing, and the drilling and stirring housing are respectively provided with fins, and the channel is located inside the fins.

4. The drilling vibratory impactor according to claim 3, characterized in that, The lower part of the drilling and stirring shell is also provided with a branch channel, which is connected to the channel inside the drilling and stirring shell and arranged at a preset angle.

5. The drilling vibratory impactor according to claim 1, characterized in that, The drill bit includes a cutter head seat, a central drill seat, a first cutter head, and a second cutter head. The first cutter head is disposed on the cutter head seat, and the second cutter head is disposed on the central drill seat. The central drill seat is located below the cutter head seat, and the cutter head seat is detachably connected to the spindle.

6. The drilling vibratory impactor according to claim 1, characterized in that, The second drive assembly includes a second motor housing and a second motor, the second motor being located inside the second motor housing and connected to the drilling and stirring assembly.

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