Wrapped pile drilling and filling all-in-one machine

Abstract

The utility model discloses a wrapped pile drilling and filling all-in-one machine which comprises a foundation mechanism and an executing mechanism, and the executing mechanism is connected to the foundation mechanism in a lifting mode. The basic mechanism comprises a power assembly, a walking assembly, a stand column and a supporting assembly, the stand column is arranged on one side of the walking assembly in a supported mode and supported through the supporting assembly, and the power assembly is arranged on the walking assembly and used for lifting the executing mechanism; the executing mechanism comprises a drilling assembly and a sleeve, the drilling assembly is arranged on the sliding rail of the stand column in a sleeving mode, and the drilling assembly is sleeved with the sleeve in a liftable mode; the power assembly comprises a main winch and an auxiliary winch. The all-in-one machine is suitable for treating mucky soil and soft plastic clayed soil foundations with undrained shear strength smaller than 20 kPa, and is particularly suitable for punching and pouring construction of saturated salinized soil foundation wrapped piles.

Description

Technical Field

[0001] The utility model relates to the technical field of wrapped pile construction, in particular to a wrapped pile drilling and pouring integrated machine. Background Art

[0002] As existing buildings gradually develop towards high-rise, the loads borne by the buildings are getting bigger and bigger, which makes the pile-forming equipment and construction methods of bored piles develop rapidly and are widely used in foundation engineering. At present, the pile body adopts equal section or screw-thread type. According to practice, under the same conditions, the pile side resistance of the screw-thread type pile body is about 2 times that of the equal section pile side resistance. In comparison, the screw-thread type pile body has higher economic value and practical value. In soft soil areas, due to the large load of high-rise or super-high-rise buildings, the quality requirements for pile formation are high. The soil has high water content, large porosity, and large settlement. The quality problems of broken piles and necking often occur in the construction of bored piles. Therefore, the use of mechanical equipment and construction methods of full-casing bored piles can solve the waste of mud wall protection and environmental pollution during the construction of bored piles, and to a certain extent solve the pile body quality problem, improve the bearing capacity of bored piles, and shorten the construction time.

[0003] The existing full-casing rotary pile-forming equipment and methods have overcome many technical difficulties in the process of bored pile construction and have high economic benefits. In order to improve the bearing capacity of single piles, the large-diameter bored piles currently formed have developed from straight-line piles with equal cross-sections to screw-thread bored piles, but most of them use the construction method of casing piles. Since the screw teeth bite the surrounding soil, it is difficult to rotate and pull the pipe, and the power requirements of the equipment are high. It is impossible to effectively perform secondary hole expansion in the hard soil or rock layer at the bottom of the pile, so as to increase the resistance of the bored pile end by increasing the pile bottom area, so as to further improve the vertical bearing capacity of the bored pile. In view of this, in order to meet the demand for pile foundation bearing capacity of high-rise or super-high-rise buildings, it is urgent to find a method with higher bearing capacity and economic benefits.

[0004] The utility model patent with application number 201920704783.X discloses a hydraulic variable diameter reaming drill bit for a long spiral drill, including a long spiral drill, a detachable upper power head installed on the long spiral drill to rotate the spiral drill rod, a hydraulic system is arranged inside the upper power head, a drill bit system is fixed at the lower end of the spiral drill rod, the drill bit system is provided with a first cavity and a second cavity, a first drill bit with a piston that can be moved outward is installed in the first cavity, a second drill bit with a piston that can be telescopically moved outward is installed in the second cavity, a pouring passage, a first channel and a second channel are arranged inside the spiral drill rod, a rotatable lower power head is arranged at the lower part of the upper power head, a detachable and rotatable casing is arranged at the lower end of the lower power head, the casing is wrapped around the outside of the drill bit system and can move up and down in the casing. It can realize the expansion of the diameter while pulling out the casing, and can pour concrete at the same time, with high construction efficiency and good economic benefits, and can effectively improve the pile end bearing capacity and pile body side resistance. However, in this patent, a pouring channel, a first hole and a second hole are set inside the auger rod, the pouring channel is set at the center of the auger rod, the first hole and the second hole are connected and symmetrically arranged on both sides of the pouring channel, wherein a detachable oil pressure pipeline is set in the first hole, and the second hole is connected to the first cavity and the second cavity. It can be seen that this patent has improved the auger rod, but the hollow structure of the improved auger rod may be insufficient in strength during the production of large piles, bend during the drilling process, and may not be smooth during the pouring process, blocking the first hole and the second hole. Utility Model Content

[0005] The utility model aims to provide an integrated machine for drilling and pouring a pile, which solves the above problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A body pile drilling and grouting integrated machine comprises a base mechanism and an actuator, wherein the actuator is connected to the base mechanism in a lifting manner; the base mechanism comprises a power assembly, a walking assembly, a column and a support assembly, wherein the column is supported on one side of the walking assembly and supported by the support assembly, and a power assembly is arranged on the walking assembly, and the power assembly is used to lift the actuator;

[0008] The actuator includes a drilling assembly and a sleeve, the drilling assembly is sleeved on the slide rail of the column, and the sleeve can be raised and lowered and sleeved outside the drilling assembly;

[0009] The power assembly includes a main winch and an auxiliary winch. The wire rope of the main winch is sequentially passed around a first pulley arranged at the top of the column and a second pulley arranged at the top of the drilling assembly, so as to lift the drilling assembly; the wire rope of the auxiliary winch is sequentially passed around a third pulley arranged on the drilling assembly and a fourth pulley arranged at the top of the casing, so as to lift the casing.

[0010] Preferably, the walking assembly includes a crawler chassis, a middle plate, a slewing mechanism and an upper plate. The middle plate is arranged on the crawler chassis, and the slewing mechanism and the upper plate are arranged on the middle plate in sequence. Front legs and rear legs are retractably arranged at the bottom of the upper plate, and columns, support assemblies and power assemblies are arranged on the top of the upper plate.

[0011] Preferably, the support assembly includes an oblique brace, an arm cylinder and a hydraulic system, the arm cylinder and the oblique brace are both supported on one side of the column, and the arm cylinder is connected to the hydraulic system.

[0012] Preferably, the diagonal brace is a retractable brace structure.

[0013] Preferably, the drilling assembly includes an outer cover, a power head, a universal joint and an auger rod, the power head is installed in the outer cover, the auger rod is connected to the output end of the power head through a universal joint, and the second pulley is arranged at the top of the outer cover.

[0014] Preferably, the third pulley includes two pulleys, which are arranged in sequence up and down on one side of the outer cover, and the wire rope of the auxiliary winch first passes around the pulley arranged at the top and then passes around the pulley arranged at the bottom, and finally passes around the fourth pulley and is connected to the outer cover.

[0015] Preferably, the fourth pulley is arranged on one side of the top of the sleeve.

[0016] Preferably, the outer cover and the sleeve are both sleeved on the slide rail of the column through a U-shaped sleeve.

[0017] Preferably, after the drilling is completed, the wire rope of the main winch is retracted to lift the drilling assembly out of the casing, a loading funnel is installed on the top of the casing, and after the pouring stone is poured into the loading funnel, the wire rope of the auxiliary winch is loosened to lower the casing into the casing for the pile pouring.

[0018] In the utility model, the integrated machine is suitable for processing silty soil with undrained shear strength less than 20 kPa and soft plastic clay foundation, and is particularly suitable for processing the drilling and pouring construction of wrapped piles in saturated saline soil foundation.

[0019] The synchronous drilling of the spiral drill rod and the casing overcomes the problem of disturbing the soil between the piles during the drilling process. The whole process of rapid drilling in the casing lasts 3-4 minutes, and the wrapping bag can be lowered. During the drilling process, the casing supports the hole wall and will not cause shrinkage or collapse.

[0020] In the working state, walking, rotation and alignment can be achieved by operating the buttons or operating levers of the electrical and hydraulic system. The power head drives the auger rod to rotate, and the main winch controls the lifting and lowering of the drilling assembly along the column. The drill residues cut by the drill bit of the auger rod are transported to the ground by the spiral blades, and the drill is lifted to the designed depth to form a hole.

[0021] The electrical, hydraulic, operating and monitoring instruments of the whole machine are concentrated in the driver's cab, which is convenient for the driller to operate and can rotate 360 ​​degrees to achieve rapid movement and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a partial structural diagram of the drilling assembly of the utility model;

[0024] In the figure: 1. basic mechanism; 2. actuator; 10. power assembly; 11. walking assembly; 12. column; 13. support assembly; 20. drilling assembly; 21. casing; 22. U-shaped sleeve; 100. main winch; 101. auxiliary winch; 102. first pulley; 103. second pulley; 104. third pulley; 105. fourth pulley; 110. crawler chassis; 111. middle plate; 112. slewing mechanism; 113. upper plate; 114. front outrigger; 115. rear outrigger; 130. diagonal brace; 131. boom cylinder; 132. hydraulic system; 200. outer cover; 201. power head; 202. universal joint; 203. auger rod. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1 and Figure 2 The illustrated body pile drilling and grouting machine comprises a base mechanism 1 and an actuator 2. The actuator 2 is connected to the base mechanism 1 in a liftable manner.

[0027] The basic mechanism 1 includes a power assembly 10, a traveling assembly 11, a column 12 and a support assembly 13. The column 12 is supported on one side of the traveling assembly 11 and supported by the support assembly 13. The column and the traveling assembly are connected by a pin. The column 12 is a box-type structure, and the front end of the column 12 is a slide rail. The power assembly 10 is arranged on the traveling assembly 11, and the power assembly 10 is used to lift the actuator 2.

[0028] The actuator 2 includes a drilling assembly 20 and a casing 21. The drilling assembly 20 is sleeved on the slide rail of the column 12. The casing 21 can be raised and lowered and sleeved outside the drilling assembly 20. The casing serves as a protective wall for drilling holes in soft strata, and a drilling slag discharge port is arranged on its upper part.

[0029] The power assembly 10 includes a main hoist 100 and an auxiliary hoist 101. The wire rope of the main hoist 100 is passed through a first pulley 102 disposed at the top of the column 12 and a second pulley 103 disposed at the top of the drilling assembly 20 in sequence, so as to lift the drilling assembly 20. The wire rope of the auxiliary hoist 101 is passed through a third pulley 104 disposed on the drilling assembly 20 and a fourth pulley 105 disposed at the top of the casing 21 in sequence, so as to lift the casing 21.

[0030] The walking assembly 11 includes a crawler chassis 110, a middle plate 111, a slewing mechanism 112 and an upper plate 113. The middle plate 111 is arranged on the crawler chassis 110, and the slewing mechanism 112 and the upper plate 113 are arranged on the middle plate 111 in sequence. The front legs 114 and the rear legs 115 are retractably arranged at the bottom of the upper plate 113. The slewing mechanism 112 is driven by the gear on the output shaft of the cycloid pinwheel reducer to realize the reverse rotation of the upper plate and the middle plate. When the integrated machine performs the drilling and pouring operations of the wrapped pile, the front legs 114 and the rear legs 115 are supported between the ground and the front end of the upper plate. When the integrated machine is in a non-operating state, the front legs 114 and the rear legs 115 are retracted. The top of the upper plate 113 is provided with a column 12, a support assembly 13 and a power assembly 10.

[0031] The support assembly 13 includes a diagonal brace 130, an arm cylinder 131 and a hydraulic system 132. The arm cylinder 131 and the diagonal brace 130 are supported on one side of the column 12, and the arm cylinder 131 is connected to the hydraulic system 132. The hydraulic system includes an oil pump motor assembly, an oil tank, an outrigger cylinder, a travel cylinder, a column lifting cylinder, an oil pipe, various valves, pipelines, etc. The operating control valves of the hydraulic system are concentrated in the driver's cab.

[0032] The diagonal brace 130 is a retractable brace rod structure. In one embodiment, the diagonal brace is a round tube flange connection structure, and a retractable screw is installed at the bottom, which can slightly adjust the length of the diagonal brace for easy installation.

[0033] The drilling assembly 20 includes an outer cover 200, a power head 201, a universal joint 202 and an auger rod 203. The power head 201 is installed in the outer cover 200 and is composed of a motor and a reducer. The auger rod 203 is connected to the output end of the power head 201 through the universal joint 202 for rotation, and the second pulley 103 is arranged at the top of the outer cover 200.

[0034] The third pulley 104 includes two pulleys, which are sequentially arranged up and down on one side of the outer cover 200. The steel wire rope of the auxiliary hoist 101 first passes around the pulley arranged at the top and then passes around the pulley arranged at the bottom, and finally passes around the fourth pulley 105 and is connected to the outer cover 200. The fourth pulley 105 is arranged on one side of the top of the casing 21. In a preferred embodiment, in order to ensure the stability of the steel wire rope connection, the steel wire rope first passes around a pulley and then is connected to the outer cover 200.

[0035] In this example, the outer cover 200 and the sleeve 21 are both sleeved on the slide rail of the column 12 through a U-shaped sleeve 22 .

[0036] The integrated machine also includes a power distribution system, which includes a distribution box, a button box, and a frequency converter. The control of each branch is concentrated in the button box, which is arranged in the driver's cab.

[0037] When drilling, the steel wire ropes of the main hoist 100 and the auxiliary hoist 101 are loosened at the same time to synchronously lower the drilling assembly 20 and the pipe sleeve 21; after the drilling is completed, the steel wire rope of the main hoist 100 is retracted to lift the drilling assembly 20 out of the casing 21, and a feeding funnel is installed on the top of the casing 21. After the pouring stone is poured into the feeding funnel, the steel wire rope of the auxiliary hoist 101 is loosened to lower the casing 21 into the casing 21 for the pile pouring; after the pouring is completed, the steel wire ropes of the main hoist 100 and the auxiliary hoist 101 are retracted in turn to lift the pipe sleeve 21 and the drilling assembly 20.

[0038] The above embodiments are only some descriptions of the concept and implementation of the utility model, and are not intended to limit the concept and implementation of the utility model. Under the concept of the utility model, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A body pile drilling and grouting machine, characterized in that: The utility model comprises a base mechanism (1) and an actuator (2), wherein the actuator (2) is connected to the base mechanism (1) in a liftable manner; the base mechanism (1) comprises a power assembly (10), a traveling assembly (11), a column (12) and a support assembly (13), wherein the column (12) is supported on one side of the traveling assembly (11) and supported by the support assembly (13), and the traveling assembly (11) is provided with a power assembly (10), and the power assembly (10) is used to lift the actuator (2); The actuator (2) comprises a drilling assembly (20) and a sleeve (21); the drilling assembly (20) is sleeved on the slide rail of the column (12); and the sleeve (21) is liftably sleeved outside the drilling assembly (20); The power assembly (10) comprises a main hoist (100) and an auxiliary hoist (101); the steel wire rope of the main hoist (100) is passed through a first pulley (102) arranged at the top of the column (12) and a second pulley (103) arranged at the top of the drilling assembly (20) in sequence, and is used to lift the drilling assembly (20); the steel wire rope of the auxiliary hoist (101) is passed through a third pulley (104) arranged on the drilling assembly (20) and a fourth pulley (105) arranged at the top of the casing (21) in sequence, and is used to lift the casing (21).

2. The body-wrapped pile drilling and grouting machine according to claim 1, characterized in that: The walking assembly (11) comprises a crawler chassis (110), a middle plate (111), a slewing mechanism (112) and an upper plate (113); the middle plate (111) is arranged on the crawler chassis (110); the slewing mechanism (112) and the upper plate (113) are arranged on the middle plate (111) in sequence; front legs (114) and rear legs (115) are retractably arranged at the bottom of the upper plate (113); and a column (12), a support assembly (13) and a power assembly (10) are arranged at the top of the upper plate (113).

3. The body-wrapped pile drilling and grouting machine according to claim 1 or 2, characterized in that: The support assembly (13) comprises an inclined brace (130), an arm cylinder (131) and a hydraulic system (132); the arm cylinder (131) and the inclined brace (130) are both supported on one side of the upright column (12); and the arm cylinder (131) is in communication with the hydraulic system (132).

4. The body-wrapped pile drilling and grouting machine according to claim 3 is characterized in that: The diagonal support (130) is a telescopic support rod structure.

5. The body-wrapped pile drilling and grouting machine according to claim 1, characterized in that: The drilling assembly (20) comprises an outer cover (200), a power head (201), a universal joint (202) and a spiral drill rod (203); the power head (201) is installed in the outer cover (200); the spiral drill rod (203) is connected to the output end of the power head (201) via the universal joint (202); and the second pulley (103) is arranged at the top end of the outer cover (200).

6. The body-wrapped pile drilling and grouting machine according to claim 5, characterized in that: The third pulley (104) includes two pulleys which are arranged in sequence up and down on one side of the outer cover (200); the steel wire rope of the auxiliary hoist (101) first passes around the pulley arranged at the top and then passes around the pulley arranged at the bottom, and finally passes around the fourth pulley (105) and is connected to the outer cover (200).

7. The body-wrapped pile drilling and grouting machine according to claim 6, characterized in that: The fourth pulley (105) is arranged on one side of the top of the sleeve (21).

8. The body-wrapped pile drilling and grouting machine according to claim 7, characterized in that: The outer cover (200) and the sleeve (21) are both sleeved on the slide rail of the column (12) via a U-shaped sleeve (22).

9. The body-wrapped pile drilling and grouting machine according to claim 8, characterized in that: After the drilling is completed, the steel wire rope of the main hoist (100) is retracted to lift the drilling assembly (20) out of the casing (21), and a loading funnel is installed on the top of the casing (21). After the pouring stone is poured into the loading funnel, the steel wire rope of the auxiliary hoist (101) is loosened to lower the casing (21) into the casing (21) for pouring the pile.

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