CN215030150U

CN215030150U - Main shaft with water supply spraying mechanism

Info

Publication number: CN215030150U
Application number: CN202121322405.9U
Authority: CN
Inventors: 王会民; 刘洪亮
Original assignee: Jiangsu Tiandun Heavy Industry Machinery Technology Co ltd
Current assignee: Jiangsu Tiandun Heavy Industry Machinery Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-07
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to a main shaft with water supply sprays mechanism, reach the spline housing subassembly that cup joints mutually with the main shaft including the main shaft, main shaft axial direction has water supply channel, spline housing subassembly top fixedly connected with spray plate, the spray plate set up hemispherical water cavity and with a plurality of hole for water spraying that is linked together of hemispherical water cavity, hemispherical water cavity bottom is linked together with water supply channel, the hole for water spraying runs through the spray plate upper surface, through setting up water supply channel in the main shaft, can bear bigger water pressure, and simple structure has saved a large amount of pipeline installation spaces, and the water supply channel is not fragile, cooperation spray plate for the high pressure sprays the area bigger and spray density evenly.

Description

Main shaft with water supply spraying mechanism

The technical field is as follows:

the utility model relates to an engineering equipment technical field especially relates to a main shaft with water supply sprays mechanism.

Background art:

the pipe jacking technology is widely applied to trenchless laying of various pipelines such as urban underground water supply and drainage pipelines, natural gas and petroleum pipelines, communication cables and the like in coastal economically developed areas in China, and can pass through highways, railways, bridges, mountains, rivers, straits and any buildings on the ground. By adopting the technology for construction, a large amount of expropriated land removal cost can be saved, the environmental pollution and the road blockage can be reduced, and the economic benefit and the social benefit are remarkable.

When the push bench works, high-pressure water is needed to spray and wash the cutter head, in the prior art, multiple water supply pipelines and spray heads need to be arranged for uniform spraying, and a large amount of installation space and installation cost are needed.

The utility model has the following contents:

to the above problem, the utility model provides a simple structure, reasonable, intensity is high, can adapt to the main shaft that has water supply and spray the mechanism that uses under various operation environment.

The utility model discloses a realize through following technical scheme: the main shaft with the water supply spraying mechanism comprises a main shaft and a spline housing assembly sleeved with the main shaft, a water supply channel is arranged at the axial center of the main shaft, a water spraying plate is fixedly connected at the top of the spline housing assembly, the water spraying plate is provided with a hemispherical water cavity and a plurality of water spraying holes communicated with the hemispherical water cavity, the bottom end of the hemispherical water cavity is communicated with the water supply channel, the water spray hole penetrates through the upper surface of the water spray plate, one end of the main shaft is provided with a first step, a second step and a third step, the outer diameters of the first step, the second step and the third step are sequentially reduced from bottom to top, the circumference of the first step is provided with threads, the circumferential surface of the second step is provided with two sealing ring mounting grooves, sealing rings are arranged in the sealing ring mounting grooves, the third step is a spline part, and the upper end of a water supply channel of the main shaft is provided with a water supply connecting pipe mounting groove.

For the spline housing is fixed firmly in the radial direction, the nut is sleeved on the thread of the first step to fasten the spline housing body on the main shaft, a nut pressing plate is arranged on the nut, and the nut pressing plate is fixed on the end face of the main shaft through a bolt.

In order to communicate the water cavity of the water spraying plate with a water supply pipeline of the main shaft, a water supply connecting pipe is arranged in the center of the nut pressing plate.

The utility model has the advantages that: through setting up water supply pipe in the main shaft, can bear bigger water pressure, simple structure has saved a large amount of pipeline installation spaces, and the pipeline is not fragile, cooperates the water spray plate for the high pressure sprays the area bigger and spray density even.

Description of the drawings:

FIG. 1 is a schematic view of the three-dimensional structure of the main shaft with the water supply spraying mechanism of the present invention;

FIG. 2 is an exploded view of the spindle with a water supply spraying mechanism of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the spindle with the water supply spraying mechanism of the present invention;

fig. 4 is a schematic view of the sectional structure of the spindle of the present invention;

fig. 5 is a schematic sectional view of the water spraying plate of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

The spindle with the water supply spraying mechanism shown in fig. 1-4 comprises a spindle 1 and a spline sleeve assembly 2 sleeved with the spindle 1, wherein a water supply channel 11 is arranged at the axial center of the spindle 1, a water spray plate 3 is fixedly connected to the top of the spline sleeve assembly 2, a hemispherical 31 water cavity and a plurality of water spray holes 32 communicated with the hemispherical 31 water cavity are formed in the water spray plate 3, the bottom end of the hemispherical 31 water cavity is communicated with the water supply channel 11, and the water spray holes 32 penetrate through the upper surface of the water spray plate.

The one end of main shaft 1 has first step 12, second step 13 and third step 14, and the external diameter of first step 12, second step 13 and third step 14 reduces from up in proper order down in proper order, screw thread has on the 12 circumference of first step, two sealing washer mounting grooves are seted up to the circumferential surface of second step 13, are provided with the sealing washer in the sealing washer mounting groove, and third step 14 is spline portion, and circular recess 15 has been seted up to the terminal surface of main shaft.

The spline sleeve 2 component comprises a spline sleeve body 21, a nut 22 and a nut pressing plate 23, the spline sleeve body 21 is sleeved on the main shaft 1, the nut 22 is sleeved on the thread of the first step 12 to fasten the spline sleeve body 21 on the main shaft 1, the nut pressing plate 23 is arranged on the nut 22, the nut pressing plate 23 is fixed on the end surface of the main shaft 1 through bolts, the water spraying plate 3 is fixedly connected on the spline sleeve body 21 through bolts, the center of the nut pressing plate 23 is provided with a water supply connecting pipe 231, the upper end of the water supply connecting pipe 231 is communicated with the water cavity 31, the lower end of the water supply connecting pipe 231 is communicated with the water supply channel 11, the other end of the water supply channel 11 is externally connected with a high-pressure water source, high-pressure water flows along the water supply channel 11, the water supply connecting pipe 231 to the hemispherical water cavity 31 and then passes through the water spraying holes 32 with multiple angles, the water spraying area is wide, and the spraying density is even.

As shown in fig. 5, a hemispherical water cavity 31 is formed on the bottom surface of the water spray plate 3, and a water spray hole 32 is formed on the inner wall of the hemispherical water cavity 31, wherein the water spray hole 32 penetrates through the upper surface of the water spray plate.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", 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 description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a main shaft with water supply sprays mechanism which characterized in that: the water spray device comprises a main shaft (1) and a spline sleeve assembly (2) sleeved with the main shaft (1), wherein a water supply channel (11) is arranged at the axial center of the main shaft (1), a water spray plate (3) is fixedly connected to the top of the spline sleeve assembly (2), a hemispherical water cavity (31) and a plurality of water spray holes (32) communicated with the hemispherical water cavity (31) are formed in the water spray plate (3), the bottom end of the hemispherical water cavity (31) is communicated with the water supply channel (11), and the water spray holes (32) penetrate through the upper surface of the water spray plate.

2. The spindle with a water supply spray mechanism as claimed in claim 1, wherein: the water spray plate (3) is uniformly provided with water spray holes (32) which are scattered outwards.

3. The spindle with a water supply spray mechanism as claimed in claim 1, wherein: the one end of main shaft (1) has first step (12), second step (13) and third step (14), and the external diameter of first step (12), second step (13) and third step (14) reduces from up in proper order down in proper order, the screw thread has on first step (12) circumference, two sealing washer mounting grooves are seted up to the circumferential surface of second step (13), are provided with the sealing washer in the sealing washer mounting groove, and third step (14) are spline portion, and circular recess (15) have been seted up to the terminal surface of main shaft.

4. The spindle with a water supply spray mechanism as claimed in claim 3, wherein: spline housing subassembly (2) are including spline housing body (21), nut (22) and nut clamp plate (23), spline housing body (21) cup joints on third step (14) on main shaft (1), nut (22) cup joint and fasten spline housing body (21) on the screw thread of first step (12), the higher authority of nut (22) is provided with nut clamp plate (23), nut clamp plate (23) pass through the bolt fastening on the terminal surface of main shaft (1), water spray plate (3) fixed connection is on spline housing body (21), the center of nut clamp plate (23) is provided with water supply connecting pipe (231), the one end and the hemispherical water cavity (31) of water supply connecting pipe (231) are linked together, the other end of water supply connecting pipe (231) cup joints in recess (15) and is linked together with water supply channel (11).