CN212371967U

CN212371967U - High-pressure ceramic nozzle and assembly with sealing ring and capable of determining direction

Info

Publication number: CN212371967U
Application number: CN202021142636.7U
Authority: CN
Inventors: 张兰芳
Original assignee: Pujiang Shengyi Precision Grinding Tool Factory
Current assignee: Pujiang Shengyi Precision Grinding Tool Factory
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-01-19
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a high-pressure ceramic nozzle and a component with a sealing ring, which are determined in direction, belonging to the field of high-pressure injection apparatus, comprising a nozzle protecting sleeve and a nozzle main body made of ceramic material, wherein the nozzle main body comprises a first cylinder and a second cylinder, the outer wall of the second cylinder is provided with a convex ring, the convex ring is provided with a guiding bevel edge, an annular clamping groove is formed between the convex ring and the first cylinder, the sealing ring is arranged in the annular clamping groove, the outer diameter of the sealing ring is larger than the diameter of the first cylinder, the nozzle body is provided with a pore passage through which the axis passes, one end of the pore passage is a bell mouth with an outward opening, the bell mouth is arranged on the first cylinder, two stages of channels with different diameters are arranged in the nozzle protecting sleeve, a first bevel edge transition is arranged between the adjacent channels, the nozzle body is inserted into the nozzle protecting sleeve channel in a matching way, the guiding bevel edge touches the first bevel edge, the sealing ring is elastically extruded with the inner wall of the nozzle protecting sleeve, and the upper end of the nozzle protecting sleeve is provided with threads and is connected into the joint. The utility model discloses the sand grain that enables to spray concentrates on an area, and is better to workpiece surface treatment effect.

Description

High-pressure ceramic nozzle and assembly with sealing ring and capable of determining direction

Technical Field

The utility model relates to a high-pressure injection apparatus field relates to high-pressure sand blasting machine, especially relates to the high-pressure ceramic nozzle and the subassembly of definite direction and area sealing washer.

Background

The surface of the workpiece sprayed by the high-pressure sand blasting machine obtains certain cleanliness and different roughness, so that the mechanical property of the surface of the workpiece is improved, impurities, variegated colors and an oxide layer on the surface of the workpiece are removed, and simultaneously, the surface of the medium is coarsened, so that the residual stress of the workpiece is eliminated, and the surface hardness of the base material is improved.

The nozzle assembly of the existing high-pressure sand blasting machine comprises a joint, wherein an air inlet and a sand inlet are formed in the joint, the nozzle is positioned in a nozzle protecting sleeve, and the nozzle protecting sleeve is connected with the joint.

The nozzle is made of ceramic as shown in patent publication No. CN104628387A, the existing nozzle is assembled on the nozzle sheath, because of the error of processing and production, the nozzle and the nozzle sheath can not be tightly attached, a gap can exist between the nozzle and the nozzle sheath, during sand blasting, the ejected air can escape from the gap, the sand grains finally ejected on the surface of a workpiece can not be concentrated on one area, and the ejection force is weakened, so that the effect of processing the surface of the workpiece is not good.

Disclosure of Invention

The utility model aims to solve the technical problem that a high-pressure ceramic nozzle and subassembly of direction just taking the sealing washer are provided.

The technical scheme of the utility model is that: confirm the direction and take high-pressure ceramic nozzle of sealing washer, including ceramic material's nozzle main part, its characterized in that, nozzle main part includes two sections first cylinders and the second cylinders of different diameters, the outer wall of second cylinder is equipped with bellied bulge loop, the bulge loop is equipped with the direction hypotenuse towards the less one end of nozzle main part diameter, forms annular groove between bulge loop and the first cylinder, and the sealing washer is established in annular groove, the sealing washer external diameter is greater than first cylinder diameter, nozzle main part is equipped with the pore that the axle center runs through, the pore is one end for opening horn mouth outwards, the horn mouth is established on the biggest first cylinder of nozzle main part upper end diameter.

The outer diameter of the convex ring is smaller than the diameter of the first cylinder.

The groove walls of the opposite surfaces of the annular clamping grooves are parallel.

The groove width of the annular clamping groove is equal to the width of the sealing ring.

And a chamfer is arranged on the outer edge of the lower end of the nozzle main body.

The sealing ring is an HNBR hydrogenated nitrile rubber sealing ring.

Another theme, high-pressure ceramic nozzle subassembly, its characterized in that, it includes the mouth guard cover, be equipped with the passageway of two-step different diameters in the mouth guard cover, have first hypotenuse transition between the adjacent passageway, the above-mentioned high-pressure ceramic nozzle matching who confirms the direction and take the sealing washer inserts in the passageway of mouth guard cover, the guiding hypotenuse of bulge loop touches on the first hypotenuse of passageway, the sealing washer extrudees with the inner wall elasticity of mouth guard cover, the upper end of mouth guard cover is equipped with the screw thread and is connected to in the joint.

And a second bevel edge is arranged at the lower end channel of the nozzle protection sleeve, and a chamfer of the outer edge of the lower end of the nozzle main body is attached to the second bevel edge.

Compared with the prior art, the utility model has the advantages that the nozzle main body comprises two sections of first cylinder and second cylinder with different diameters, the nozzle main body is provided with a pore passage through which the axis passes, one end of the pore passage is a horn mouth with an outward opening, the horn mouth is arranged on the first cylinder with the largest diameter at the upper end of the nozzle main body, and a user can conveniently and quickly confirm the front and back surfaces of the nozzle main body;

the outer wall of the second cylinder is provided with a raised convex ring, a guiding bevel edge is arranged at one end, with the smaller diameter, of the convex ring towards the nozzle main body, an annular clamping groove is formed between the convex ring and the first cylinder, the sealing ring is arranged in the annular clamping groove, the outer diameter of the sealing ring is larger than the diameter of the first cylinder, when the nozzle main body is inserted into a channel of the nozzle protection sleeve in a matched mode, the guiding bevel edge of the convex ring touches the first bevel edge of the channel, the sealing ring is elastically extruded with the inner wall of the nozzle protection sleeve, no gap exists between the nozzle main body and the channel of the nozzle protection sleeve, sand particles finally sprayed onto the surface of a workpiece can be concentrated on one region, and the workpiece surface treatment effect is.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the background art and explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of the use of a high pressure ceramic nozzle assembly connection joint.

FIG. 2 is a schematic view of a nozzle body structure.

Fig. 3 is a schematic view of the structure of the mouth guard.

Fig. 4 is a schematic view of a structure of a mouth guard.

FIG. 5 is a cross-sectional view of a high pressure ceramic nozzle assembly connection joint.

Fig. 6 is an exploded view of the high pressure ceramic nozzle assembly at the time of joining the joints.

In the figure: 1. a joint; 2. an air inlet; 3. a sand inlet; 4. a mouth protecting sleeve; 5. a first column; 6. a nozzle body; 7. an annular neck; 8. a duct; 9. a second cylinder; 10. a convex ring; 11. a hypotenuse guide; 12. a channel; 13. a first beveled edge; 14. a second beveled edge; 15. a thread; 16. chamfering; 17. a seal ring; 18. a bell mouth.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

1-6, the high-pressure ceramic nozzle component comprises a nozzle protection sleeve 4 and a high-pressure ceramic nozzle which is determined in direction and provided with a sealing ring, the high-pressure ceramic nozzle which is determined in direction and provided with the sealing ring is inserted into the nozzle protection sleeve 4 in a matching mode, the upper end of the nozzle protection sleeve 4 is provided with a thread 15 and is connected into a joint 1, the joint 1 is provided with an air inlet 2 and a sand inlet 3, the joint 1 sprays sand into the nozzle protection sleeve 4, and the sand is sprayed onto the surface of a workpiece to be processed through the high-pressure ceramic nozzle which is determined in direction and provided with the sealing ring.

Fig. 2 and 5 show that the high-pressure ceramic nozzle with the sealing ring determines the direction, and comprises a nozzle body 6 made of ceramic material, wherein the nozzle body 6 comprises a first cylinder 5 and a second cylinder 9 with two sections of different diameters, the nozzle body 6 is provided with a hole passage 8 through which the axis passes, one end of the hole passage 8 is a bell mouth 18 with an outward opening, the bell mouth 18 is arranged on the first cylinder 5 with the largest diameter at the upper end of the nozzle body 6, and a user can conveniently and quickly confirm the front and back surfaces of the nozzle body 6.

As shown in fig. 2 and 5, a raised convex ring 10 is arranged on the outer wall of the second cylinder 9, an annular clamping groove 7 is formed between the convex ring 10 and the first cylinder 5, a sealing ring 17 is arranged in the annular clamping groove 7, the outer diameter of the sealing ring 17 is greater than the diameter of the first cylinder 5, preferably, the groove walls of the opposite surfaces of the annular clamping groove 7 are parallel, and the groove width of the annular clamping groove 7 is equal to the width of the sealing ring 17, so that the sealing ring 17 is clamped in the annular clamping groove 7 without deviation.

Sealing washer 17 is harder rubber material, has performances such as high pressure resistant, high temperature, anticorrosive, dustproof, wear-resisting, bending resistance to sealing washer 17's coefficient of deformation is little, if: in the HNBR hydrogenated nitrile rubber seal ring, when the seal ring 17 is used, sand particles sprayed out of the joint 1 impact the surface of the seal ring 17, the seal ring 17 is not deformed, and the resistance to sand particle impact is good.

As shown in fig. 2 and 5, the end of the convex ring 10, which is smaller in diameter and faces the nozzle body 6, is provided with a guiding bevel 11, and the outer diameter of the convex ring 10 is smaller than the diameter of the first cylinder 5, so that the sealing ring 17 is conveniently clamped into the annular clamping groove 7.

The lower end of the nozzle body 6 is provided with a chamfer 16 at its outer edge.

As shown in fig. 3-5, two stages of channels 12 with different diameters are arranged in the nozzle guard 4, a first bevel edge 13 transition is arranged between adjacent channels 12, the nozzle body 6 is inserted into the channel 12 of the nozzle guard 4 in a matching way, the guiding bevel edge 11 of the convex ring 10 touches the first bevel edge 13 of the channel 12, the sealing ring 17 is elastically extruded with the inner wall of the nozzle guard 4, no gap exists between the nozzle body 6 and the channel 12 of the nozzle guard 4, sand grains finally sprayed onto the surface of a workpiece can be concentrated on one area, and the surface treatment effect of the workpiece is better. First hypotenuse 13 touches with the hypotenuse 11 of the leading of bulge loop 10 and plays the effect that supports for nozzle body 6, and when nozzle body 6 received high pressure impact, the hypotenuse 11 of the leading of bulge loop 10 extrudees the atress for the lapse with first hypotenuse 13, and the pressure that receives will be less than the pressure that direct extrusion received, makes the hypotenuse 11 of bulge loop 10 difficult to receive the extrusion damage.

As shown in fig. 5, a second bevel edge 14 is arranged at a lower end channel 12 of the nozzle guard 4, a chamfer 16 at the outer edge of the lower end of the nozzle body 6 is attached to the second bevel edge 14, when the nozzle body 6 is impacted by high pressure, the second bevel edge 14 is attached to the chamfer 16 at the outer edge of the lower end of the nozzle body 6 to support the nozzle body 6, the chamfer 16 at the outer edge of the lower end of the nozzle body 6 and the second bevel edge 14 are stressed by downward sliding extrusion, and the pressure applied is less than that applied by direct extrusion, so that the chamfer 16 at the outer edge of the lower end of the nozzle body 6 is not easily damaged by extrusion.

It is right above the utility model provides a definite direction and high-pressure ceramic nozzle and subassembly of taking the sealing washer go on the detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been explained, and the explanation of above embodiment is only used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. Confirm the direction and take high-pressure ceramic nozzle of sealing washer, including ceramic material's nozzle main part, its characterized in that, nozzle main part includes two sections first cylinders and the second cylinders of different diameters, the outer wall of second cylinder is equipped with bellied bulge loop, the bulge loop is equipped with the direction hypotenuse towards the less one end of nozzle main part diameter, forms annular groove between bulge loop and the first cylinder, and the sealing washer is established in annular groove, the sealing washer external diameter is greater than first cylinder diameter, nozzle main part is equipped with the pore that the axle center runs through, the pore is one end for opening horn mouth outwards, the horn mouth is established on the biggest first cylinder of nozzle main part upper end diameter.

2. The direction defining, seal ring high pressure ceramic nozzle of claim 1, wherein an outer diameter of said torus is less than a first cylinder diameter.

3. The oriented, seal-lined high pressure ceramic nozzle of claim 1, wherein the opposing groove walls of the annular clamping groove are parallel.

4. The oriented, seal-lined high pressure ceramic nozzle of claim 1, wherein the annular clamping groove has a groove width equal to the width of the seal.

5. The direction defining, seal ring equipped high pressure ceramic nozzle of claim 1, wherein the lower end outer edge of said nozzle body is chamfered.

6. The direction defining, seal ring high pressure ceramic nozzle of claim 1, wherein said seal ring is a HNBR hydrogenated nitrile rubber seal ring.

7. The high-pressure ceramic nozzle assembly is characterized by comprising a nozzle protection sleeve, wherein two stages of channels with different diameters are arranged in the nozzle protection sleeve, a first bevel edge transition is arranged between every two adjacent channels, the high-pressure ceramic nozzle with the determined direction and the sealing ring is inserted into the channel of the nozzle protection sleeve in a matching mode, the guide bevel edge of the convex ring touches the first bevel edge of the channel, the sealing ring is elastically extruded with the inner wall of the nozzle protection sleeve, and the upper end of the nozzle protection sleeve is provided with threads and is connected into a joint.

8. The high pressure ceramic nozzle assembly as claimed in claim 7, wherein the lower end passage of the nozzle guard has a second beveled edge, and the lower outer edge of the nozzle body has a chamfer that engages the second beveled edge.