WO2016023292A1

WO2016023292A1 - Mixing pile machine

Info

Publication number: WO2016023292A1
Application number: PCT/CN2014/091689
Authority: WO
Inventors: 高伯明
Original assignee: 高伯明
Priority date: 2014-08-11
Filing date: 2014-11-19
Publication date: 2016-02-18
Also published as: CN104196018A; CN104196018B

Abstract

A mixing pile machine, comprising at least one drill rod set (103), a transmission shaft (104), a drive device used for driving the transmission shaft (104), at least one first reduction gear set (105) and at least one second reduction gear set (106). A first output gear (1041) and a second output gear (1042) are arranged on the transmission shaft (104). The drill rod set (103) comprises an inner drill rod shaft (1031) and an outer drill rod rotating sleeve (1032) fitted on the inner drill rod shaft (1031). The first reduction gear set (105) transmits power of the first output gear (1041) to an inner drill rod gear (1033), and the second reduction gear set transmits power of the second output gear (1042) to the outer drill rod rotating sleeve (1034).

Description

Mixing pile machine

Technical field

The invention relates to a mixing pile machine, in particular to a mixing pile machine with a reduction gear set and a motor capable of driving a plurality of drill pipe sets.

Background technique

Some soft soil foundations often cause foundation settlement and failure under the action of loads, cycles, vehicles, etc., often leading to quality problems in highways, railways, and terminals. In response to this problem, the common solution to the treatment of soft soil foundations is to reinforce the soft soil foundation. At present, a two-way cement-soil mixing pile machine is selected in the soft soil foundation reinforcement treatment. The traditional mixing pile machine is connected to the reducer by the motor, the reducer is connected to the coupling, the coupling is connected to the mud joint, and the mud joint is connected to the drill pipe set. The equipment is very high and difficult to transport. When maintenance is needed, it needs a lot. The parts are removed and repaired, and the production cost is high. And because the reducer is external, one motor can only drive one drill rod set, which has low operating efficiency and high energy consumption, and is not suitable for popularization and application. Some operators have fixed the two mixing pile machines together through the rack to realize the simultaneous operation of the two machines. If one of the mixing pile machines fails, both machines must be stopped for maintenance, which seriously affects the progress of the construction. Moreover, the two mixing pile machines are relatively heavy, and it is easy to tremble in the air. Moreover, the two-way mixing pile machine can only be used for cement piles. If there is a project that needs to hit the continuous wall under the cement land, the mixing pile machine can't be constructed.

Summary of the invention

It is an object of the present invention to provide a mixing pile machine that addresses one or more of the above prior art problems.

According to an aspect of the invention, a pile driver is provided, comprising at least one drill rod set, a drive shaft, a drive device for driving the drive shaft, at least one first reduction gear set and at least one second reduction gear set; a first output gear and a second output gear are disposed on the drive shaft; the drill rod set includes an inner drill rod shaft and an outer drill rod rotating sleeve sleeved on the inner drill rod shaft; the first reduction gear set The power of the first output gear is transmitted to the inner drill rod gear, and the second reduction gear set transmits power of the second output gear to the outer drill rod rotating sleeve.

In some embodiments, the number of the drill pipe set, the first reduction gear set, and the second reduction gear set are two, and the drive shaft is located between the two drill pipe sets. The axis of the drive shaft is parallel to the axis of the drill string, and the first output gear and the second output gear are disposed coaxially with the drive shaft. This allows one motor to simultaneously drive two drill pipe sets, improving work efficiency and reducing labor costs.

In some embodiments, the first reduction gear set and the second reduction gear set each include at least one reduction gear, and the difference between the number of reduction gears in the first reduction gear set and the number of reduction gears of the second reduction gear set is an odd number. This allows the steering of the drill pipe of the drill string to be reversed from the steering of the outer drill pipe.

In some embodiments, the reduction gear includes a gear shaft and a transmission gear sleeved on the gear shaft. The gear shaft is provided with a rack on the ring, and the diameter of the rack is smaller than the diameter of the transmission gear. Thereby, the rotational speed of the inner drill rod gear and the outer drill rod gear can be changed.

In some embodiments, the first reduction gear set includes a first reduction gear and a second reduction gear, the transmission gear of the first reduction gear is coupled to the first output gear, and the rack gear of the first reduction gear is coupled to the The transmission gear of the second reduction gear, the rack gear of the second reduction gear is coupled to the inner drill rod gear. This can reduce the rotational speed of the inner drill rod gear.

In some embodiments, the second reduction gear set includes a third reduction gear, the transmission gear of the third reduction gear is coupled to the second output gear, and the rack of the third reduction gear is coupled to the outer drill rod gear. This can reduce the rotational speed of the outer drill rod gear.

In some embodiments, the end of the outer drill rod rotating sleeve is fitted with an outer drill rod connection. Therefore, during the production, the outer drill pipe can be connected through the outer drill rod connecting member, and the inner drill rod shaft is connected with the inner drill rod at the bottom of the inner drill rod shaft. When transporting the equipment, the outer drill rod and the inner drill rod can be disassembled for transportation, Easy for local maintenance.

In some embodiments, the top end of the inner drill rod shaft is fitted with a first mud joint. Therefore, when the mud joint is blocked, there is no need to disassemble the motor and the reducer, and only the mud joint is repaired, which can save maintenance time and greatly improve the work efficiency.

In some embodiments, the output end of the transmission shaft is further connected with a reducer, the output end of the reducer is connected with a second coupling, the second coupling is connected with a second mud joint, and the second mud joint is connected with a center drill. Rod connector. Therefore, in one operation, the central drill pipe connecting member is connected to the central drill pipe, and the two cement-soil mixing piles can be opened at the same time, and poured into a cement soil mixing pile wall, thereby improving the work quality.

In some embodiments, the drive device includes a motor and a first coupling coupled to the motor output. This makes it possible to drive the drive shaft to rotate.

The invention reduces the production cost by replacing the reducer with the reduction gear set, and can A plurality of drill pipe sets are driven by one motor, thereby improving work efficiency and reducing energy consumption. In addition, in one operation, two cement-soil mixing piles can be opened at the same time, and poured into a cement soil mixing pile wall, thereby improving The quality of the work, and transportation, installation and maintenance are more convenient.

DRAWINGS

1 is a schematic structural view of a mixing pile machine according to Embodiment 1 of the present invention;

2 is a schematic structural view of a reduction gear in a mixing pile machine according to Embodiment 1 of the present invention;

3 is a schematic structural view of a first reduction gear set in a mixing pile machine according to Embodiment 1 of the present invention;

4 is a schematic structural view of a second reduction gear set in the mixing pile machine according to Embodiment 1 of the present invention;

Figure 5 is a schematic structural view of a mixing pile machine according to Embodiment 2 of the present invention;

6 is a schematic structural view of a first reduction gear set in a mixing pile machine according to Embodiment 2 of the present invention;

Figure 7 is a schematic structural view of a first reduction gear set in a mixing pile machine according to a second embodiment of the present invention;

Fig. 8 is a structural schematic view showing the connection of the center drill pipe of the mixing pile machine according to the first embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Example 1:

As shown in FIGS. 1-4, the pile driver includes two drill rod sets 103, a drive shaft 104, two first reduction gear sets 105, and two second reduction gear sets 106. The drive shaft 104 is driven by a drive unit. In this embodiment, the drive device includes a motor 101 and a first coupling 102. Other suitable drive devices can also be used. The drive shaft 104 is parallel to the axis of the drill string 103 and the drive shaft 104 is located between the drill string set 103. The drill string set 103 includes an inner drill rod shaft 1031 and an outer drill rod rotating sleeve 1032 sleeved on the inner drill rod shaft 1031. The output end of the motor 101 is connected to the input end of the first coupling 102, the output end of the first coupling 102 is connected to the input end of the transmission shaft 104, and the transmission shaft 104 is sequentially connected coaxially (for example, a flat key connection). There is a first output gear 1041 and a second output gear 1042. It should be noted that the second output gear 1042 can also be replaced by a rack (not shown) that is sleeved on the transmission shaft 104. The inner drill rod shaft 1031 is coaxially connected (for example, a flat key connection) has an inner drill rod gear 1033, and the outer drill rod sleeve 1032 is coaxially connected (eg, a flat key connection) with an outer drill rod gear 1034. A first reduction gear set 105 and a second are respectively disposed between the transmission shaft 104 and the two drill rod sets 103 The reduction gear set 106, the first output gear 1041 transmits power to the inner drill rod gear 1033 through the first reduction gear set 105, and the second output gear 1042 transmits power to the outer drill rod gear 1034 through the second reduction gear set 106.

The first reduction gear set 105 and the second reduction gear set 106 each include at least one reduction gear 107. The reduction gear 107 includes a gear shaft 1071 and a transmission gear 1072 sleeved on the gear shaft 1071. The transmission gear 1072 is coupled to the gear shaft 1071 by screws. The outer circumference ring of the gear shaft 1071 is provided with a rack 1073. The rack 1073 is disposed on the gear shaft 1071 by welding or integral molding, and the diameter of the rack 1073 is smaller than the diameter of the transmission gear 1072. Thereby, the rotational speeds of the inner drill rod gear 1033 and the outer drill rod gear 1034 can be changed. The difference between the number of reduction gears in the first reduction gear set 105 and the number of reduction gears of the second reduction gear set 106 is an odd number, thereby making it possible to rotate the inner drill pipe (not shown) of the drill pipe group 103 with the outer drill. The rotation of the rod (not shown) rotates in the opposite direction. In the present embodiment, the first reduction gear set 105 includes a first reduction gear 107a and a second reduction gear 107b, and the second reduction gear set 106 includes a third reduction gear 107c. The transmission gear of the first reduction gear 107a is coupled to the first output gear 1041, the rack of the first reduction gear 107a is coupled to the transmission gear of the second reduction gear 107b, and the rack of the second reduction gear 107b is coupled. In the inner drill rod gear 1033, the rotation speed of the inner drill rod gear 1033 can be reduced; the transmission gear of the third reduction gear 107c is coupled to the second output gear 1042, and the rack gear of the third reduction gear 107c is coupled to the outer gear. The drill rod gear 1034 can thereby reduce the rotational speed of the outer drill rod gear 1034.

Example 2:

5-7, the mixing pile machine includes a drill string assembly 103, a drive shaft 104, a first reduction gear set 105 and a second reduction gear set 106, and the drive shaft 104 is driven by a drive unit. The connection between the structure of the drill pipe assembly 103, the transmission shaft 104, the first reduction gear set 105, the second reduction gear set 106, and the driving device and the connection relationship are the same as those in Embodiment 1, and are not described herein again.

Further, in Embodiment 1 or Embodiment 2, the outer drill rod connecting member 1035 is attached to the end of the outer drill rod rotating sleeve 1032. During production, the outer drill rod can be connected through the outer drill rod connector 1035, and the bottom of the inner drill rod shaft 1031 is connected to the inner drill rod. When transporting equipment, the outer drill rod and the inner drill rod can be disassembled for transportation and local maintenance.

Further, in Embodiment 1 or Embodiment 2, the tip end of the inner drill rod shaft 1031 is attached with the first mud joint 108. When the first mud joint 108 is blocked, the motor and the reducer need not be disassembled, and only the mud joint is repaired, which can save maintenance time and greatly improve work efficiency.

In addition, as shown in FIG. 8, in the embodiment 1, the output end of the transmission shaft 104 may also be connected with a speed reducer 109, a second coupling 110, a second mud joint 111 and a center drill pipe joint 112 in sequence. The output end of the transmission shaft 104 is flanged to the input end of the speed reducer 109, the output end of the speed reducer 109 is flanged to the input end of the second coupling 110, and the output end of the second coupling 110 is connected to the second mud. The joint 111 is connected and the second mud joint 111 is connected to the center drill pipe joint 112. Therefore, in one operation, the central drill pipe connecting member 112 is connected to the central drill pipe, and the two cement soil mixing piles can be opened at the same time, and poured into a cement soil mixing pile wall, thereby improving the work quality.

For specific use, the whole mixing pile machine is installed on the piler tower according to the national construction standard. The inner drill rod shaft 1031 is connected to the inner drill rod, and the outer drill rod connecting sleeve 1035 is connected to the outer drill rod. The center drill rod is connected. The piece 112 is connected to the center drill pipe. Starting the motor 101, under the action of the coupling 102, the drive shaft 104 drives the first output gear 1041, the second output gear 1042 and the central drill rod connector 112 to rotate in the positive direction, and the first output gear 1041 passes the first reduction gear set. The first reduction gear 107a and the second reduction gear 107b of the 105 decelerate and drive the inner drill rod gear 1033 to rotate in the reverse direction, and the second output gear 1042 is decelerated and driven by the third reduction gear 107c of the second reduction gear set 106. The outer drill rod gear 1034 rotates in the forward direction. The drill pipe assembly 103 and the central drill pipe connecting member 112 are pressed downward by the chain on the pile driver tower. After the soil is introduced, the first mud joint 108 conveys the mud to the inner drill pipe shaft, and the blade pairs on the inner and outer drill pipes The mud is stirred in the opposite direction and the positive direction until the design depth, and the mud is stopped; the center drill pipe connecting member 112 piling between the two mixing piles, so that the two mixing piles are connected, and the two mixing piles are connected The slurry is stirred and mixed, and the second slurry joint 111 is supplied with gas into the mixing pile to thoroughly mix the cement slurry of the two mixing piles. If the amount of mud is insufficient, the second slurry joint 111 delivers the slurry into the mixing pile. Upon completion, the rotation of the drill string assembly 103 and the central drill rod connector 112 is continued, and then the drill rod is lifted up through the chain on the pile driver tower until the blade leaves the ground, and the drill rod assembly 103 and the central drill rod connector The rotation of 112 stops. The above-mentioned use mode is construction according to the construction process of national standards.

In summary, the present invention reduces the phenomenon of shaking of the mixing pile machine during high altitude operation by replacing the speed reducer with the reduction gear set, reduces the production cost, and can drive a plurality of drill pipe sets by one motor, thereby improving the operation. Efficiency, reducing energy consumption, in addition, in one operation, the two cement-soil mixing piles can be opened at the same time, poured into cement soil mixing pile wall, which improves the quality of operation, and is convenient for transportation, installation and maintenance.

The above is only one embodiment of the present invention, and it should be noted that those skilled in the art can also make it without departing from the inventive concept. Dry similar deformations and improvements are also considered to be within the scope of the present invention.

Claims

A pile driver, comprising at least one drill rod set (103), a drive shaft (104), a drive device for driving the drive shaft (104), at least one first reduction gear set (105) and at least a second reduction gear set (106);

The transmission shaft (104) is provided with a first output gear (1041) and a second output gear (1042);

The drill pipe set (103) includes an inner drill rod shaft (1031) and an outer drill rod rotating sleeve (1032) sleeved on the inner drill rod shaft (1031);

The first reduction gear set (105) transmits power of the first output gear (1041) to the inner drill rod gear (1033), and the second reduction gear set transmits the second output gear (1042) The power is transmitted to the outer drill rod rotating sleeve (1034).
The mixing pile machine according to claim 1, wherein the number of the drill pipe set (103), the first reduction gear set (105), and the second reduction gear set (106) are both The transmission shaft (104) is located between the two drill pipe sets (103), the axis of the transmission shaft (104) is parallel to the axis of the drill pipe set, and the first output gear (1041) And the second output gear (1042) is disposed coaxially with the drive shaft (104).
The mixing pile driver according to claim 1 or 2, wherein the first reduction gear set (105) and the second reduction gear set (106) each comprise at least one reduction gear (107), The difference between the number of reduction gears in the first reduction gear set (105) and the number of reduction gears of the second reduction gear set (106) is an odd number.
The mixing pile machine according to claim 3, wherein the reduction gear (107) comprises a gear shaft (1071) and a transmission gear (1072) sleeved on the gear shaft (1071), the gear shaft The (1071) ring is provided with a rack (1073) having a diameter smaller than the diameter of the transmission gear (1072).
The pile driver according to claim 4, wherein said first reduction gear set (105) comprises a first reduction gear (107a) and a second reduction gear (107b), said first reduction gear (107a) a transmission gear (1072) is coupled to the first An output gear (1041), a rack (1073) of the first reduction gear (107a) is coupled to a transmission gear (1072) of the second reduction gear (107b), the second reduction gear (107b) A rack (1073) is coupled to the inner drill rod gear (1033).
The pile driver according to claim 5, wherein said second reduction gear set (106) comprises a third reduction gear (107c), and a transmission gear (1072) of said third reduction gear (107c) Connected to the second output gear (1042), the rack (1073) of the third reduction gear (107c) is coupled to the outer drill rod gear (1034).
The mixing pile driver according to claim 1, wherein an outer drill rod connecting member (1035) is attached to an end of the outer drill rod rotating sleeve (1032).
The mixing pile driver according to claim 1, wherein a top end of the inner drill rod shaft (1031) is fitted with a first mud joint (108).
The mixing pile machine according to claim 1, wherein the output end of the transmission shaft (104) is further connected with a speed reducer (109), a second coupling (110) and a second mud joint (111). And the center drill pipe connector (112).
A mixing pile machine according to claim 1 wherein said drive means comprises a motor (101) and a first coupling (102) coupled to the output of the motor.