A pile mixing machine with a pressure device

Abstract

The present invention discloses a mixing pile machine with a pressurizing device, comprising a column, an equipment platform, a drilling rig, a driving device and a pressurizing device; the column is uprightly arranged on the equipment platform, the drilling rig can be movably arranged on the column up and down, the driving device is coupled with the drilling rig power, and is used to drive the drilling rig; the pressurizing device is arranged on the equipment platform, and the pressurizing device comprises a first winch and a second winch, the steel wire ropes of the first winch and the second winch are both connected to the drilling rig, and are used to lift and pull down the drilling rig respectively. In the technical solution provided by the present invention, the construction efficiency of the mixing pile machine is greatly improved by introducing the pressurizing device, and the disadvantages caused by the mixing pile machine without a pressurizing device are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pile drivers, and in particular to a mixing pile driver with a pressurizing device. Background Art

[0002] At present, cement mixing piles can be divided into single-axis, double-axis and three-axis mixing piles according to the main construction methods. Its working principle is mainly to use a deep mixer to spray the slurry curing agent into the reinforced soft soil with high pressure during the drilling process, and rely on the rotation of the special drill blade on the machine to force the curing agent and the in-situ soft soil to be mixed on the spot. The curing agent undergoes a series of physical and chemical reactions, making the original soil at the pile position hard from soft, forming a pile body with good integrity, strong water stability and high bearing capacity. This pile body interacts with the soil between the piles to form a composite foundation with a significantly higher bearing capacity than the natural soft soil foundation. The curing agent used in actual engineering is mainly cement or lime, which is sprayed into cement soil piles or lime soil piles.

[0003] Among them, the single-axis mixer has a high frame and is top-heavy, which poses certain safety hazards. The drill bit is a cross-shaped four-blade drill. If the mixing is not uniform at one time, it needs to be repeated. Because it only has one spiral drilling hole, the efficiency of drilling holes and adding cement for mixing is low, which greatly prolongs its construction period. However, due to the large frame structure, power system and torque matching of the three-axis mixer, the three drill bits are long spiral cross blades, and the construction is accompanied by air compressor jets. Therefore, the mixing is uniform and sufficient, which improves the mixing efficiency, and the pile quality is high and the water-stopping performance is good. Compared with other support forms of piles, the three-axis mixing pile has a fast construction speed, and each pile takes about 30-40 minutes (about 60m can be completed in 24 hours); the water-stopping effect is significant after the pile is formed; the mechanical automation control has a simple operation procedure; the labor input is small and the construction cost is low; and the three-axis mixing pile can be constructed after the trench excavation is completed, and no mud pool is required on site, so the safety and civilization of the construction site are guaranteed. After the steel is inserted, the three-axis mixing pile plays both a water-stopping and a supporting role, and the steel can be recycled. Normally, a three-axis pile mixing machine performs pressurized mixing by its own weight, which results in a low construction efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a pile mixing machine with a pressurizing device in view of the deficiencies in the prior art, so as to solve the disadvantages caused by the pile mixing machine having no pressurizing device.

[0005] The present invention provides a mixing pile machine with a pressurizing device, comprising a column, an equipment platform, a drilling machine, a driving device and a pressurizing device;

[0006] The column is uprightly arranged on the equipment platform, the drilling rig is movably arranged on the column, and the driving device is coupled with the drilling rig for driving the drilling rig;

[0007] The pressurizing device is arranged on the equipment platform, and the pressurizing device includes a first winch and a second winch. The steel wire ropes of the first winch and the second winch are both connected to the drilling rig, and are used to lift and pull down the drilling rig respectively.

[0008] Optionally, the pressurizing device further comprises a hydraulic pump, a first oil circuit and a second oil circuit;

[0009] The first oil circuit and the second oil circuit are both connected to the hydraulic pump, and the first oil circuit and the second oil circuit are arranged in parallel;

[0010] The first oil circuit includes a first hydraulic motor, a first solenoid valve and a first damper, and the first hydraulic motor is dynamically coupled to the first winch;

[0011] The second oil circuit includes a second hydraulic motor, a second solenoid valve and a second damper, and the second hydraulic motor is dynamically coupled to the second winch;

[0012] When the first solenoid valve is in a first communication state and the second solenoid valve is in a first working state, the first hydraulic motor is in circulation communication with the hydraulic pump, and the second hydraulic motor is in circulation communication with the second damper;

[0013] When the first solenoid valve is in the second communication state and the second solenoid valve is in the second working state, the first hydraulic motor is in circulation communication with the first damper, and the second hydraulic motor is in circulation communication with the hydraulic pump.

[0014] Optionally, the equipment platform is provided with a first manual lever, a second manual lever, a first solenoid valve switch and a second solenoid valve switch;

[0015] The first manual lever and the second manual lever are used to switch the first hydraulic motor and the second hydraulic motor respectively, and the first solenoid valve switch and the second solenoid valve switch are used to adjust the first solenoid valve and the second solenoid valve respectively.

[0016] Optionally, the second solenoid valve switch is close to the first manual lever, and the first solenoid valve switch is close to the second manual lever.

[0017] Optionally, the equipment platform is provided with a first manual rod rotation slot and a second manual rod rotation slot in parallel;

[0018] The first manual lever is installed in the first manual lever rotation groove, and a first safety latch is detachably installed at the first manual lever rotation groove, and the first safety latch is used to limit the first manual lever to a closed position. When the first safety latch is in the closed position, the first hydraulic motor is in a closed state;

[0019] The second manual lever is installed in the second manual lever rotation groove, and a second safety latch is detachably installed at the second manual lever rotation groove. The second safety latch is used to limit the second manual lever to a closed position. When the second safety latch is in the closed position, the second hydraulic motor is in a closed state.

[0020] Optionally, the first safety latch and the second solenoid valve switch are respectively arranged on two sides of the first manual lever rotation slot in the slot width direction;

[0021] The second safety latch and the first solenoid valve switch are respectively arranged on two sides of the second manual lever rotation slot in the slot width direction.

[0022] Optionally, the second solenoid valve switch and the second safety latch are located between the first manual lever rotation slot and the second manual lever rotation slot, and the second solenoid valve switch and the second safety latch are spaced apart in a slot width direction.

[0023] Optionally, the hydraulic pump, the first hoist and the second hoist are all arranged on the equipment platform;

[0024] The first hoist and the second hoist are both arranged along the first side length direction of the equipment platform, and the first hoist and the second hoist are arranged at intervals along the second side length direction of the equipment platform, wherein the first side length direction intersects with the second side length direction.

[0025] Optionally, the hydraulic pump and the second hoist are located on the same side of the first hoist;

[0026] One end of the second hoist connected to the second hydraulic motor faces the hydraulic pump.

[0027] In the technical solution provided by the present invention, the construction efficiency of the pile mixing machine is greatly improved by introducing a pressure-increasing device, thereby solving the disadvantages of the pile mixing machine caused by the lack of a pressure-increasing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a pile mixing machine with a pressurizing device provided by the present invention;

[0030] Figure 2 for Figure 1 The structural diagram of the hydraulic pump in the middle;

[0031] Figure 3 for Figure 2 A partial structural diagram of

[0032] Figure 4 for Figure 1 A schematic diagram of some structures at the middle equipment platform;

[0033] Explanation of the accompanying drawings: a mixing pile machine 100 with a pressurizing device, a column 11, an equipment platform 12, a diagonal brace 13, a drilling rig 2, a first winch 31a, a second winch 31b, a wire rope 311, a hydraulic pump 32, a first oil circuit 33a, a first hydraulic motor 331a, a first solenoid valve 332a, a first damper 333a, a second oil circuit 33b, a second hydraulic motor 331b, a first manual lever 4a, a second manual lever 4b, a first solenoid valve switch 5a, a second solenoid valve switch 5b, a first manual lever rotation slot 6a, a second manual lever rotation slot 6b, a first safety latch 7a, and a second safety latch 7b.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides a mixing pile machine with a pressurizing device, and the mixing pile machine with a pressurizing device can be a three-axis mixing pile machine, such as Figure 1 As shown, the mixing pile machine 100 with a pressurizing device includes a column 11, an equipment platform 12, a drilling machine 2, a driving device and a pressurizing device.

[0039] like Figure 1 As shown, the column 11 is uprightly arranged on the equipment platform 12, the drilling rig 2 is movably arranged on the column 11, and the driving device is coupled to the drilling rig 2 for driving the drilling rig 2. Optionally, in this embodiment, the pile mixing machine 100 with a pressurizing device further includes an inclined brace 13, the two ends of which are respectively connected to the column 11 and the equipment platform 12 for supporting the column 11.

[0040] like Figure 1 As shown, the pressurizing device is arranged on the equipment platform 12, and the pressurizing device includes a first winch 31a and a second winch 31b. The steel wire ropes 311 of the first winch 31a and the second winch 31b are both connected to the drilling rig 2, and are used to lift and pull down the drilling rig 2 respectively. When the first winch 31a and the second winch 31b work together, they drive the steel wire rope 311 to drive the power head and the drill rod of the drilling rig 2 to move together; the first winch 31a and the second winch 31b can also retract and release the steel wire rope 311, thereby achieving the pressurization of the power head and the lifting of the drill rod. By introducing the pressurizing device, the construction efficiency of the mixing pile machine is greatly improved, and the shortcomings caused by the mixing pile machine without a pressurizing device are solved.

[0041] Specifically, Figure 2 and Figure 3As shown, in this embodiment, the pressurizing device also includes a hydraulic pump 32, a first oil circuit 33a and a second oil circuit 33b; the first oil circuit 33a and the second oil circuit 33b are both connected to the hydraulic pump 32, and the first oil circuit 33a and the second oil circuit 33b are arranged in parallel; the first oil circuit 33a includes a first hydraulic motor 331a, a first solenoid valve 332a and a first damper 333a, and the first hydraulic motor 331a is power-coupled with the first winch 31a; the second oil circuit 33b includes a second hydraulic motor 331b, a second solenoid valve and a second damper , the second hydraulic motor 331b is connected to the second winch 31b by power coupling; when the first solenoid valve 332a is in the first connected state and the second solenoid valve is in the first working state, the first hydraulic motor 331a is in circulation communication with the hydraulic pump 32, and the second hydraulic motor 331b is in circulation communication with the second damper; when the first solenoid valve 332a is in the second connected state and the second solenoid valve is in the second working state, the first hydraulic motor 331a is in circulation communication with the first damper 333a, and the second hydraulic motor 331b is in circulation communication with the hydraulic pump 32. In actual operation, it is difficult to ensure the constant movement direction of the drilling rig 2 by operating the two winch switches together, and it is difficult for workers to judge whether to turn on or off the pressurizing device after observing the movement of the wire rope 311 with the naked eye. Therefore, the effect of the pressurizing device is highly random, poorly controllable, and has a high safety risk. Since the first winch 31a and the second winch 31b are connected in parallel to the hydraulic pump 32 to form a circuit and work at the same time, when one winch is turned off, the other winch cannot stop running immediately. The two winches pull the wire rope at the same time, which may cause the power head to be damaged under the action of a pair of reaction forces. In order to solve this problem, solenoid valves and dampers are set on the hydraulic motors of the two winches of the pressurizing device. When one winch is turned on, the circuit of the hydraulic motor of the other winch is interrupted and stops working. However, the remaining hydraulic oil in the hydraulic motor causes the hydraulic motor to form damping when it rotates in the reverse direction, suppressing the reverse rotation trend, thereby forming a passive working mode to prevent the two winches from pulling in reverse and damaging the pressurizing device.

[0042] Further, if Figures 2 to 4As shown, in this embodiment, the equipment platform 12 is provided with a first manual lever 4a, a second manual lever 4b, a first solenoid valve switch 5a and a second solenoid valve switch 5b; the first manual lever 4a and the second manual lever 4b are used to switch the first hydraulic motor 331a and the second hydraulic motor 331b respectively, and the first solenoid valve switch 5a and the second solenoid valve switch 5b are used to adjust the first solenoid valve 332a and the second solenoid valve respectively; and the equipment platform 12 is provided with a parallel first manual lever rotation groove 6a and a second manual lever rotation groove 6b; the first manual lever 4a is installed in the first manual lever rotation groove 6a, and the first A first safety latch 7a is detachably installed at the manual lever rotation groove 6a, and the first safety latch 7a is used to limit the first manual lever 4a to the closed position. When the first safety latch 7a is in the closed position, the first hydraulic motor 331a is in the closed state; the second manual lever 4b is installed in the second manual lever rotation groove 6b, and a second safety latch 7b is detachably installed at the second manual lever rotation groove 6b, and the second safety latch 7b is used to limit the second manual lever 4b to the closed position. When the second safety latch 7b is in the closed position, the second hydraulic motor 331b is in the closed state.

[0043] Specifically, the second solenoid valve switch 5b is close to the first manual lever 4a, the first solenoid valve switch 5a is close to the second manual lever 4b, the first hoist 31a is responsible for the lifting of the drilling rig 2, and the second hoist 31b is mainly responsible for the lowering and pressurizing of the drilling rig 2. Pull out the first safety pin 7a that restricts the first manual lever 4a, press the second solenoid valve switch 5b next to the first manual lever 4a, the movement of the first manual lever 4a is no longer restricted, push the first manual lever 4a to the open position, and the first hoist 31a starts to work. At the same time, after the second solenoid valve switch 5b is pressed, the second hydraulic motor 331b of the second hoist 31b forms a circuit with the second damper, and the oil circuit makes the second hoist 31b not start and stop immediately, but is driven by the steel wire rope 311 of the first hoist 31a to drive the drilling rig 2, and then drive the steel wire rope 311 of the second hoist 31b to work passively. Similarly, the second safety pin 7b that restricts the second manual lever 4b is pulled out, and the first solenoid valve switch 5a of the second manual lever 4b is pressed. The movement of the second manual lever 4b is no longer restricted. The second manual lever 4b is pushed to the open position, and the second winch 31b drives the drilling rig 2 through the wire rope 311 to start pressurizing. At the same time, after the first solenoid valve switch 5a is pressed, the first hydraulic motor 331a of the first winch 31a forms a loop with the first damper 333a, and the oil circuit prevents the first winch 31a from starting and stopping immediately. Instead, the drilling rig 2 is driven by the wire rope 311 of the second winch 31b, and then the wire rope 311 of the first winch 31a is driven to work passively.

[0044] like Figure 4As shown, in this embodiment, the first safety latch 7a and the second electromagnetic valve switch 5b are respectively arranged on both sides of the first manual lever rotation slot 6a in the slot width direction; the second safety latch 7b and the first electromagnetic valve switch 5a are respectively arranged on both sides of the second manual lever rotation slot 6b in the slot width direction. Moreover, the second electromagnetic valve switch 5b and the second safety latch 7b are located between the first manual lever rotation slot 6a and the second manual lever rotation slot 6b, and the second electromagnetic valve switch 5b and the second safety latch 7b are arranged at intervals in the slot width direction.

[0045] like Figure 2 As shown, in this embodiment, the hydraulic pump 32, the first winch 31a and the second winch 31b are all arranged on the equipment platform 12; and the first winch 31a and the second winch 31b are both arranged along the first side length direction of the equipment platform 12; the first winch 31a and the second winch 31b are arranged at intervals along the second side length direction of the equipment platform 12, wherein the first side length direction intersects with the second side length direction, so that the pressurizing device is arranged more compactly.

[0046] Further, if Figure 2 As shown, in this embodiment, one end of the first hoist 31a away from the first hydraulic motor 331a is flush with one end of the second hoist 31b away from the second hydraulic motor 331b in the first side length direction.

[0047] Optional, such as Figure 2 As shown, in this embodiment, the hydraulic pump 32 and the second hoist 31 b are located on the same side of the first hoist 31 a ; the end of the second hoist 31 b connected to the second hydraulic motor 331 b faces the hydraulic pump 32 .

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pile mixing machine with a pressurizing device, characterized in that: It includes columns, equipment platforms, drilling rigs, driving devices and pressurizing devices; The column is uprightly arranged on the equipment platform, the drilling rig is movably arranged on the column, and the driving device is coupled with the drilling rig for driving the drilling rig; The pressurizing device is arranged on the equipment platform, and the pressurizing device comprises a first hoist and a second hoist, and the steel wire ropes of the first hoist and the second hoist are both connected to the drilling rig, and are used to lift and pull down the drilling rig respectively; The mixing pile machine is a three-axis mixing pile machine; The pressurizing device also includes a hydraulic pump, a first oil circuit and a second oil circuit; the first oil circuit and the second oil circuit are both connected to the hydraulic pump, and the first oil circuit and the second oil circuit are arranged in parallel; the first oil circuit includes a first hydraulic motor, a first solenoid valve and a first damper, and the first hydraulic motor is coupled with the first winch power; the second oil circuit includes a second hydraulic motor, a second solenoid valve and a second damper, and the second hydraulic motor is coupled with the second winch power; when the first solenoid valve is in a first connected state and the second solenoid valve is in a first working state, the first hydraulic motor is circulated and connected with the hydraulic pump, and the second hydraulic motor is circulated and connected with the second damper; when the first solenoid valve is in a second connected state and the second solenoid valve is in a second working state, the first hydraulic motor is circulated and connected with the first damper, and the second hydraulic motor is circulated and connected with the hydraulic pump.

2. The pile mixing machine with a pressurizing device according to claim 1, characterized in that: The equipment platform is provided with a first manual lever, a second manual lever, a first solenoid valve switch and a second solenoid valve switch; The first manual lever and the second manual lever are used to switch the first hydraulic motor and the second hydraulic motor respectively, and the first solenoid valve switch and the second solenoid valve switch are used to adjust the first solenoid valve and the second solenoid valve respectively.

3. The pile mixing machine with a pressurizing device according to claim 2, characterized in that: The second solenoid valve switch is close to the first manual lever, and the first solenoid valve switch is close to the second manual lever.

4. The pile mixing machine with a pressurizing device according to claim 2, characterized in that: The equipment platform is provided with a first manual rod rotation slot and a second manual rod rotation slot in parallel; The first manual lever is installed in the first manual lever rotation groove, and a first safety latch is detachably installed at the first manual lever rotation groove, and the first safety latch is used to limit the first manual lever to a closed position. When the first safety latch is in the closed position, the first hydraulic motor is in a closed state; The second manual lever is installed in the second manual lever rotation groove, and a second safety latch is detachably installed at the second manual lever rotation groove. The second safety latch is used to limit the second manual lever to a closed position. When the second safety latch is in the closed position, the second hydraulic motor is in a closed state.

5. The pile mixing machine with a pressurizing device according to claim 4, characterized in that: The first safety latch and the second solenoid valve switch are respectively arranged on two sides of the first manual lever rotation slot in the slot width direction; The second safety latch and the first solenoid valve switch are respectively arranged on two sides of the second manual lever rotation slot in the slot width direction.

6. The pile mixing machine with a pressurizing device according to claim 5, characterized in that: The second solenoid valve switch and the second safety latch are located between the first manual lever rotation groove and the second manual lever rotation groove, and the second solenoid valve switch and the second safety latch are spaced apart in a groove width direction.

7. The pile mixing machine with a pressurizing device according to claim 1, characterized in that: The hydraulic pump, the first hoist and the second hoist are all arranged on the equipment platform; The first hoist and the second hoist are both arranged along the first side length direction of the equipment platform, and the first hoist and the second hoist are arranged at intervals along the second side length direction of the equipment platform, wherein the first side length direction intersects with the second side length direction.

8. The pile mixing machine with a pressurizing device according to claim 7, characterized in that: The hydraulic pump and the second hoist are located on the same side of the first hoist; One end of the second hoist connected to the second hydraulic motor faces the hydraulic pump.

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