CN113818426A

CN113818426A - Auxiliary tool rest lifting device and double-wheel milling and stirring machine reaming device

Info

Publication number: CN113818426A
Application number: CN202110947672.3A
Authority: CN
Inventors: 罗菊; 孙余; 任杰; 闫志刚; 苏伟; 刘威
Original assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Current assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-12-21
Anticipated expiration: 2041-08-18
Also published as: CN113818426B

Abstract

The invention discloses a knife rest auxiliary lifting device, which comprises a knife rest protection frame, wherein the knife rest protection frame is provided with two symmetrical connecting surfaces, each connecting surface is connected with a spraying device, each spraying device comprises a circulation pipeline connected to the outer side surface of the connecting surface, a plurality of mounting seats are arranged on the circulation pipeline, and each mounting seat is provided with a spray head communicated with the circulation pipeline; the circulation pipeline is communicated with the high-pressure medium source, the high-pressure medium source is used for providing high-pressure medium for the circulation pipeline, and the spray head is used for spraying out the high-pressure medium. According to the invention, the injection device is additionally arranged on the knife rest protection frame, when the device is used, the specific gravity of slurry above the knife rest protection frame is changed through the high-pressure medium sprayed by the spray head, the high-pressure medium is sprayed by the spray head to reduce the pressure of the slurry, and the resistance is reduced when the knife rest protection frame is lifted, so that the lifting efficiency is increased.

Description

Auxiliary tool rest lifting device and double-wheel milling and stirring machine reaming device

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a tool rest auxiliary lifting device and a double-wheel milling and stirring machine reaming device.

Background

In the construction process of the underground continuous wall, the cutter frame is easy to generate the condition of slurry drilling under the condition of not enlarging the thickness of the wall. Particularly, the adsorption force is generated in the process of lifting the tool rest, so that the tool rest is slowly lifted, and the drill is clamped in serious conditions. In the prior art, repeated milling is carried out under the conditions of drill suction and drill clamping, and the thickness of a formed groove is ensured to be larger than that of a tool rest.

Disclosure of Invention

The invention aims to provide a tool rest auxiliary lifting device and a double-wheel milling and stirring machine reaming device, and aims to solve the problems that in the prior art, an adsorption force is generated in the process of lifting a tool rest, so that the tool rest is lifted slowly, and a drill is clamped seriously.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

a knife rest auxiliary lifting device comprises a knife rest protection frame, wherein the knife rest protection frame is provided with at least two symmetrical connecting surfaces, each connecting surface is connected with a spraying device, each spraying device comprises a circulation pipeline connected to the outer side surface of the connecting surface, a plurality of mounting seats are arranged on the circulation pipeline, and each mounting seat is provided with a spray head communicated with the circulation pipeline;

the circulation pipeline is communicated with a high-pressure medium source, the high-pressure medium source is used for providing high-pressure medium for the circulation pipeline, and the spray head is used for spraying out the high-pressure medium.

Further, the high pressure medium in the high pressure medium source comprises gas, water and bentonite.

Furthermore, the injection device also comprises an elbow joint positioned on the inner side surface of the connecting surface, one end of the elbow joint is connected with the circulating pipeline, the other end of the elbow joint is connected with an upper joint through a rubber pipe, and the upper joint is used for being connected with the high-pressure medium source.

Further, the circulation pipeline is arranged along the length direction of the tool rest protection frame connecting surface.

Furthermore, each connecting surface of the tool rest protection frame is provided with 10-18 spray heads.

Further, the mounting seats are fixed on the flow pipeline, and the spraying angle of the spray head on each mounting seat is the same.

Further, the mounting seats are fixed on the circulating pipeline, and the spray nozzles on different mounting seats have different spray angles.

Furthermore, the mounting seat is fixed on the circulation pipeline, and the included angle between the spraying angle of the spray head and the connecting surface connected with the spray head is 45-90 degrees.

The invention also provides a reaming device of the double-wheel milling and stirring machine, which comprises the auxiliary lifting device of the tool rest.

According to the technical scheme, the embodiment of the invention at least has the following effects:

1. according to the invention, the injection device is additionally arranged on the knife rest protection frame, when the device is used, the specific gravity of slurry above the knife rest protection frame is changed through the high-pressure medium sprayed by the spray head, the high-pressure medium is sprayed by the spray head to reduce the pressure of the slurry, and the resistance is reduced when the knife rest protection frame is lifted, so that the lifting efficiency is increased.

2. The high-pressure medium source designed by the invention can provide various high-pressure media such as gas, water, bentonite and the like, and the sprayed high-pressure medium can be switched, so that the high-pressure medium source can adapt to auxiliary lifting in the construction process of continuous walls with different media;

3. according to the invention, the circulation pipeline is arranged along the length direction of the connecting surface, and the plurality of nozzles are arranged on the circulation pipeline, so that the spraying effect of the sprayed high-pressure medium can be ensured, and the lifting effect of the knife rest protection frame can be ensured.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention.

Wherein: 1. a tool rest protection bracket; 2. a flow line; 3. a mounting seat; 4. a spray head; 5. bending the joint; 6. a hose; 7. and (4) an upper connector.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and 2, an auxiliary tool rest lifting device includes a tool rest protection frame 1, where the tool rest protection frame 1 has at least two symmetrical connection surfaces, each connection surface is connected with a spraying device, the spraying device includes a flow pipeline 2 connected to an outer side surface of the connection surface, the flow pipeline 2 is provided with a plurality of mounting seats 3, and each mounting seat 3 is provided with a spray head 4 communicated with the flow pipeline 2; the flow pipeline 2 is communicated with a high-pressure medium source, the high-pressure medium source is used for providing high-pressure medium for the flow pipeline 2, and the spray head 4 is used for spraying out the high-pressure medium.

According to the invention, the injection device is additionally arranged on the knife rest protection frame, when the device is used, the specific gravity of slurry above the knife rest protection frame is changed through the high-pressure medium sprayed by the spray head, the high-pressure medium is sprayed by the spray head to reduce the pressure of the slurry, and the resistance is reduced when the knife rest protection frame is lifted, so that the lifting efficiency is increased.

As shown in fig. 1 and 2, the spraying device further comprises an elbow joint 5 located on the inner side surface of the connecting surface, one end of the elbow joint 5 is connected with the circulation pipeline 2, the other end of the elbow joint 5 is connected with an upper joint 7 through a rubber tube 6, the upper joint 7 is located above the tool rest protection frame 1, and the connection between the upper joint 7 and the circulation pipeline 2 is conveniently achieved through the rubber tube 6 and the elbow joint 5. The upper joint 7 is used for being connected with a high-pressure medium source, and when the tool rest protection frame lifting device works, high-pressure medium in the high-pressure medium source enters the rubber tube 6 through the upper joint, then enters the circulation pipeline 2 through the elbow joint 5, and is ejected from the spray head 4 connected with the circulation pipeline 2, so that the resistance when the tool rest protection frame is lifted is reduced.

In some embodiments, the high-pressure medium in the high-pressure medium source is gas, water and bentonite, and the type of the high-pressure medium to be sprayed can be selected according to construction requirements so as to adapt to different construction requirements.

In some embodiments, the flow line 2 runs along the length of the connection surface of the tool holder guard 1. 10-18 spray heads are uniformly arranged on the connecting surfaces of the two sides of the knife rest protection frame 1, and the specific number of the spray heads needs to be set according to the length of the connecting surface of the knife rest protection frame 1.

In some embodiments, the mounting seats 3 are fixed to the flow conduit 2, and the spray heads 4 on each mounting seat 3 have the same spray angle. The design has simple structure and convenient manufacture. The fixed mounting base 3 that sets up can increase the holistic life of device.

In some embodiments, the angle of the nozzle 4 connected to the mounting base 3 can be adjusted to change the direction of the high-pressure medium ejected from the nozzle to better complete the auxiliary lifting operation. Based on the adjustable angle of the nozzle 4, two embodiments are provided, in one embodiment, the mounting base 3 is designed as a rotatable mounting base, and the design can adjust the spraying angle of the nozzle 4 according to actual needs. In another embodiment, the mounting is of a fixed design, in which case the spray head 4 on the mounting 3 is designed for a plurality of spray angles. For example, in the embodiment, there are three groups of 12 nozzles, the first group of four nozzles has the same spraying angle of the 1 st, 4 th, 7 th and 10 th nozzles, the angles of the 2 nd, 5 th, 8 th and 11 th nozzles are increased by 5-15 degrees compared with the angle of the 1 st nozzle, and the angles of the 3 rd, 6 th, 9 th and 12 th nozzles are increased by 5-15 degrees compared with the angle of the 2 nd nozzle. The electromagnetic valves are designed on each group of spray heads to control the on-off of the spray heads, and the control of the spray angle can be realized through the on-off of the corresponding electromagnetic valves.

In some embodiments, the tool holder guard 1, as shown in fig. 1 and 2, comprises two symmetrical connection surfaces, and in other embodiments, the number of connection surfaces may be four, i.e. four injection devices are connected.

The invention also provides a reaming device of the double-wheel milling and stirring machine, which comprises the auxiliary tool rest lifting device provided by any embodiment.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The auxiliary lifting device for the tool rest is characterized by comprising a tool rest protection frame (1), wherein the tool rest protection frame (1) is provided with at least two symmetrical connecting surfaces, each connecting surface is connected with a spraying device, each spraying device comprises a circulation pipeline (2) connected to the outer side surface of the connecting surface, a plurality of mounting seats (3) are arranged on the circulation pipeline (2), and each mounting seat (3) is provided with a spray head (4) communicated with the circulation pipeline (2);

the circulation pipeline (2) is communicated with a high-pressure medium source, the high-pressure medium source is used for providing high-pressure medium for the circulation pipeline (2), and the spray head (4) is used for spraying out the high-pressure medium.

2. The tool holder auxiliary lifting device according to claim 1, wherein the high pressure medium in the high pressure medium source comprises gas, water and bentonite.

3. Tool-holder auxiliary lifting device according to claim 1, characterized in that the spraying device further comprises an elbow (5) located on the inner side of the connecting surface, one end of the elbow (5) being connected to the flow-through line (2) and the other end being connected to an upper connector (7) via a hose (6), the upper connector (7) being adapted to be connected to the high-pressure medium source.

4. Tool-holder auxiliary lifting device according to claim 1, characterized in that the flow-through line (2) is arranged in the length direction of the connection face of the tool-holder protection bracket (1).

5. Tool-holder auxiliary lifting device according to claim 4, characterized in that 10-18 spray heads are provided on each connection face of the tool-holder protection bracket (1).

6. Tool-holder auxiliary lifting device according to claim 1, characterized in that the mounting seats (3) are fixed on the flow line (2), the spray angle of the spray head (4) on each mounting seat (3) being the same.

7. Tool-holder auxiliary lifting device according to claim 1, characterized in that the mounting (3) is fixed to the flow-through line (2) with different spray angles of the spray heads (4) on different mounting (3).

8. Tool-holder auxiliary lifting device according to claim 1, characterized in that the mounting seat (3) is fixed to the flow-through line (2) and the angle of the spray head (4) is 45-90 ° to the connecting surface connected thereto.

9. A reaming device for a two-wheel mill-mixer, comprising a tool-holder auxiliary lifting device according to any one of claims 1 to 8.