CN211681631U

CN211681631U - Nozzle structure of shot blasting machine

Info

Publication number: CN211681631U
Application number: CN201922446786.0U
Authority: CN
Inventors: 常杰; 郭敬滨; 彭少锋; 王蒙
Original assignee: Sanhe Huaxia Hengtai Electronic Technology Co ltd
Current assignee: Sanhe Huaxia Hengtai Electronic Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-16
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a nozzle structure of a shot blasting machine, which is provided with a compressed air inlet and a shot blasting inlet for compressed air and shot blasting to enter, and a first nozzle for shot blasting to spray out; the nozzle arrangement also includes a base and a housing. The base is cylindrical, and one end of the base is provided with a rod-shaped core part which is coaxially arranged; one end of the core part, which is far away from the base, is in a trumpet shape with gradually increased radial size; the base is provided with threads. The shell is screwed on the base through threads, the core is surrounded inside, and a channel for gas and shot blasting to flow through is formed between the shell and the core; the compressed air inlet and the shot blasting inlet are close to the base and communicated with the channel, and the first nozzle is formed at the tail end of the channel far away from the base. The utility model discloses a nozzle structure of peening machine through improving the inside water conservancy diversion structure of nozzle, does benefit to and improves the nozzle spun effect of peening from the nozzle.

Description

Nozzle structure of shot blasting machine

Technical Field

The utility model relates to a shot-blasting machine equipment manufacture technical field, in particular to nozzle structure of shot-blasting machine.

Background

In important mechanical parts, there are often special requirements for the surface properties of the parts, and shot peening is an important means for strengthening the surface of a metal material. In a large number of engineering applications, practices prove that the shot blasting surface treatment technology can improve the fatigue performance, the corrosion fatigue performance and the stress corrosion resistance of mechanical products and improve the porosity of the surface of a metal material. The nozzle for shot blasting is an important technical means in shot blasting treatment, but shot blasting ejected by the currently used shot blasting nozzle has defects in the aspects of ejection speed, rotation and uniform distribution, and improvement on the ejection effect of the shot blasting needs to be realized.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a nozzle structure of a shot blasting machine to improve a flow guiding structure inside the nozzle, thereby improving the effect of blasting shots from the nozzle of the nozzle.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a nozzle structure of a shot blasting machine is provided with a compressed air inlet and a shot blasting inlet for compressed air and shot blasting to enter, and a first nozzle for ejecting the shot blasting; the nozzle structure further includes:

the device comprises a base, a first fixing device and a second fixing device, wherein the base is cylindrical, and one end of the base is provided with a rod-shaped core part which is coaxially arranged; one end of the core part, which is far away from the base, is in a trumpet shape with gradually increased radial size; the base is provided with threads;

a housing screwed to the base via the screw threads, surrounding the core inside, and forming a passage for the compressed air and the shot blast to flow through with the core; the compressed air inlet and the shot blasting inlet are arranged close to the base and communicated with the channel, and the first nozzle is formed at the tail end of the channel far away from the base.

Furthermore, a plurality of spiral core rifling grooves which are annularly and uniformly distributed at intervals on the axis of the core are formed in the outer peripheral surface of the core, shell rifling grooves which are in one-to-one correspondence with the core rifling grooves are formed in the inner wall of the shell, and the base extend to the first nozzle from the base.

Further, the core is integrally provided with the base.

Furthermore, the core part is hollow and is provided with a branch channel, the blind end of the branch channel close to the base is communicated with the rifling groove of the core part through a branch passage, and the other end of the branch channel is provided with a second nozzle.

Further, the second nozzle is in a horn mouth shape.

Furthermore, pipelines of the compressed air inlet and the shot blasting inlet are obliquely and tangentially arranged on the outer wall of the shell along the flow guiding direction of the rifling groove of the shell.

Further, the shot blasting inlet is positioned on one side of the compressed air inlet close to the first nozzle.

Further, one end of the base, which faces away from the core, is provided with a mounting rod.

Compared with the prior art, the utility model discloses following advantage has:

(1) nozzle structure of peening machine, through setting up core and casing on the base, form similar cylindric passageway between the two, air and peening get into through passageway one end, advance through the spiral in the passageway to spout blowout from the horn mouth form can improve the rotatability when peening blowout, thereby do benefit to and improve the peening from the spout spun effect of nozzle.

(2) The rifling grooves are correspondingly arranged on the outer peripheral surface of the core part and the inner wall of the shell, so that the flow guide effect of shot blasting in the channel can be further improved, and the ejection quality of the shot blasting is improved.

(3) The base and the core part adopt an integrated structure, so that the manufacture is convenient, a structure for connecting and fixedly mounting the core part is not required to be arranged in the channel, and the blocking of the channel flow guide is avoided.

(4) The core is provided with the branch channel and the second nozzle, so that the more uniform shot blasting effect can be formed at the nozzle part of the nozzle.

(5) The second nozzle orifice is also formed in a bell mouth shape, and shot ejected from the second nozzle orifice can have a wide range of ejection.

(6) The compressed air inlet and the pipeline of the shot blasting inlet are arranged in a mode of being tangent to the outer wall of the shell, and are arranged along the flow guide direction of the rifling groove of the shell, so that compressed air entering the channel can flow through more smoothly, and shot blasting can flow into the channel more quickly.

(7) The shot blasting inlet is arranged at the downstream of the compressed air inlet, so that the flow guide of shot blasting in the shot blasting inlet can be formed when air flows through the shot blasting inlet, and the smoothness of the shot blasting inflow channel is further improved.

(8) The installation of the nozzle on the shot blasting site is facilitated by the installation of the mounting rod at the end of the base facing away from the core.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

FIG. 1 is a schematic perspective view of a nozzle structure of a shot-blasting machine according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a base and a core of a nozzle according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line D-D of FIG. 1;

FIG. 4 is a schematic view of the nozzle shown in FIG. 1 at view E;

description of reference numerals:

600-nozzle, 601-base, 602-core, 603-thread, 604-core rifling groove, 605-second nozzle, 606-branch passage, 607-mounting rod, 610-housing, 611-compressed air inlet, 612-shot inlet, 613-housing rifling groove, 620-first nozzle.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, terms of left, right, up, down, and the like are used for convenience of description and are based on terms in the illustrated state, and should not be construed as limiting the structure of the present invention; references to first, second, third, etc. are also made for ease of description and are not to be construed as indicating or implying relative importance.

The embodiment relates to a nozzle structure of a shot blasting machine, which can improve the effect of shot blasting ejected from a nozzle of the nozzle by improving a flow guide structure inside the nozzle. The nozzle structure of the shot blasting machine comprises a compressed air inlet and a shot blasting inlet for compressed air and shot blasting to enter, a first nozzle for shot blasting to eject, a base and a shell. The base is cylindrical, and one end of the base is provided with a rod-shaped core part which is coaxially arranged; one end of the core part, which is far away from the base, is in a trumpet shape with gradually increased radial size; the base is provided with threads; the shell is screwed on the base through the screw thread, the core is surrounded inside, and a channel for the gas and the shot blasting to flow through is formed between the shell and the core; the compressed air inlet and the shot blasting inlet are close to the base and communicated with the channel, and the first nozzle is formed at the tail end of the channel far away from the base. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Based on the above general structural principles, the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. An exemplary structure of a nozzle structure of the shot-blasting machine of the present embodiment is shown in fig. 1, which has a compressed air inlet 611 and a shot inlet 612 for the compressed air and the shot to enter, and a first nozzle 620 for the shot to be ejected; the nozzle structure of the nozzle 600 further includes a base 601 and a housing 610.

As shown in fig. 1, 2 and 3, the base 601 is cylindrical, and a rod-shaped core 602 arranged coaxially is provided at one end of the base 601; the end of the core 602 remote from the base 601 is flared with increasing radial dimension. The base 601 is provided with threads 603; and the shell 610 is screwed on the base 601 through the screw thread 603, thereby surrounding the core 602 inside, and a space is left between the outer wall of the core 602 and the inner wall of the shell 610, thereby forming a channel for gas and shot blast to flow through between the shell 610 and the core 602; the compressed air inlet 611 and the shot inlet 612 are provided near the base 601 and communicate with the channel, and the first nozzle 620 is formed at the trailing end of the channel away from the base 601.

In order to further improve the flow guiding effect of the shot blasting in the channel and improve the shot blasting quality, as shown in fig. 2, a plurality of spiral core part rifling grooves 604 with uniformly distributed axial intervals are formed on the outer peripheral surface of the core part 602. Correspondingly, as shown in fig. 3, a housing rifling groove 613 corresponding to each core rifling groove 604 is formed on the inner wall of the housing 610, and both the base 601 and the base 601 extend from the base 601 to the first nozzle 620.

For ease of fabrication, and without the need for additional structure within the channel for attaching the core 602, to avoid obstruction of the channel flow, the core 602 is preferably integral with the base 601. For example, it may be machined from the same blank.

As shown in fig. 2 and 3, a hollow hole channel may be machined in the core 602 to form a branch channel, a blind end of the branch channel near the base 601 is communicated with the core rifling groove 604 through a branch passage 606, and the other end of the branch channel is formed with a second nozzle 605. The provision of the core 602 with the branch passages and the second nozzle 605 provides a more uniform shot blasting effect at the nozzle 600 nozzle portion. Preferably, the second nozzle 605 is also formed in a bell mouth shape, so that the shot ejected from the second nozzle 605 can have a wide ejection range.

In order to make the compressed air entering the channel flow more smoothly and the shot blast flow more rapidly, as shown in fig. 4, the pipes of the compressed air inlet 611 and the shot blast inlet 612 may be arranged on the outer wall of the housing 610 in a tangential manner along the flow guiding direction of the housing rifling groove 613. Meanwhile, it is preferable that the shot blast inlet 612 is located at a side of the compressed air inlet 611 near the first nozzle 620; the placement of the shot inlet 612 downstream of the compressed air inlet 611 creates a flow path for the shot within the shot inlet 612 as air flows through the shot inlet 612, thereby further enhancing the smoothness of the shot flow path.

In addition, a mounting rod 607 may be provided at the end of the base 601 facing away from the core 602 to facilitate installation of the nozzle 600 at the peening site.

In the nozzle structure of the shot-blasting machine according to the present embodiment, the core 602 and the shell 610 are provided on the base 601, and the passage similar to a cylindrical shape is formed therebetween, and air and the shot are introduced through one end of the passage, and are ejected from the bell-mouth-shaped nozzle opening by being spirally advanced in the passage, so that the rotatability at the time of ejecting the shot can be improved, thereby facilitating the improvement of the effect of ejecting the shot from the nozzle opening of the nozzle 600.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle structure of a shot-blasting machine has a compressed air inlet (611) and a shot inlet (612) for the entry of compressed air and shot, and a first nozzle (620) for the ejection of the shot; characterized in that the nozzle structure further comprises:

the device comprises a base (601), a plurality of rods and a plurality of rods, wherein the base (601) is cylindrical, and a rod-shaped core (602) which is coaxially arranged is arranged at one end of the base (601); the end of the core (602) far away from the base (601) is in a trumpet shape with gradually increased radial size; the base (601) is provided with a thread (603);

a housing (610) screwed to the base (601) through the screw (603), surrounding the core (602) inside, and forming a passage for the compressed air and the shot blast to flow through with the core (602); the compressed air inlet (611) and the shot inlet (612) are disposed near the base (601) and communicate with the channel, and the first nozzle (620) is formed at a trailing end of the channel away from the base (601).

2. The nozzle structure of a shot-blasting machine according to claim 1, wherein: the outer circumferential surface of the core (602) is provided with a plurality of spiral core rifling grooves (604) which surround the core (602) and are uniformly distributed at intervals along the axial line, the inner wall of the shell (610) is provided with shell rifling grooves (613) which are in one-to-one correspondence with the core rifling grooves (604), and the base (601) both extend to the first nozzle (620) from the base (601).

3. The nozzle structure of a shot-blasting machine according to claim 2, wherein: the core (602) is provided integrally with the base (601).

4. The nozzle structure of a shot-blasting machine according to claim 3, wherein: the core (602) is hollow and is provided with a branch channel, the blind end of the branch channel close to the base (601) is communicated with the core rifling groove (604) through a branch passage (606), and the other end of the branch channel is provided with a second nozzle (605).

5. The nozzle structure of a shot-blasting machine according to claim 4, wherein: the second nozzle orifice (605) is in a bell mouth shape.

6. The nozzle structure of a shot-blasting machine according to any of claims 2 to 5, wherein: the pipelines of the compressed air inlet (611) and the shot blasting inlet (612) are arranged on the outer wall of the shell (610) in an inclined tangent mode along the flow guiding direction of the shell rifling groove (613).

7. The nozzle structure of a shot-blasting machine according to claim 6, wherein: the shot inlet (612) is located on a side of the compressed air inlet (611) close to the first nozzle (620).

8. The nozzle structure of a shot-blasting machine according to claim 7, wherein: the end of the base (601) facing away from the core (602) is provided with a mounting rod (607).